CN106162681B - A kind of detection method and device of GSM900 second harmonic interference - Google Patents

Abstract

The present invention provides a kind of detection method and device of GSM900 second harmonic interference, wherein, detection method is applied to the base station TD-LTE of F-band, and whether F-band is fallen by second harmonic to GSM900 and second order inter-modulation frequency point, fall into corresponding to the second harmonic and second order inter-modulation frequency point of F-band whether No. RB belong to pulse RB set, RB corresponding to the second harmonic and second order inter-modulation frequency point of F-band is fallen into the average interference power situation of busy periods and idle section, successively analyzed, and the case where base station TD-LTE is interfered by GSM900 second harmonic and the probability that the base station TD-LTE is interfered by GSM900 second harmonic are obtained based on the analysis results.This kind of detection method can fast and accurately detect the case where interfering between the base station TD-LTE and the station GSM900 in real network, improve the accuracy of detection accuracy and detection that the base station TD-LTE is interfered.

Description

A kind of detection method and device of GSM900 second harmonic interference

Technical field

The present invention relates to mobile communication fields, more particularly, to the detection method and dress of a kind of interference of GSM900 second harmonic It sets.

Background technique

The interference of GSM900 second harmonic is that the intermodulation index error of part GSM900 antenna affects TD-LTE upstream rate. As shown in Figure 1, for the schematic diagram of GSM900 second harmonic interference.

As seen from Figure 1, when meeting the two of specific frequency relationship (meeting f1+f2,2f1,2f2 is fallen into F-band) When a or multiple GSM900 signals emit simultaneously, the second harmonic or second order intermodulation product of generation will fall into 1880-1920MHz frequency In section, if GSM900 antenna intermodulation index is poor in addition, harmonic wave or Intermodulation Interference will be generated, to cause the base station TD-LTE clever Sensitivity loss.

With the fast development in wireless telecommunications market, the especially outburst of data service in recent years, to the covering of network and Capacity requirement is higher and higher.For this purpose, operator puts into huge fund, the wireless network of a large amount of various standards, radius of society are deployed Smaller and smaller, the multiplexed situation of terrace resource is also more and more, and in this case, network bottom is made an uproar continuous lifting, does between system Problem is disturbed also to be on the rise.Such as the TD-LTE system that China Mobile will dispose on F-band and D frequency range, has and be by other Unite the risk of interference, such as F-band may Intermodulation Interference, the clutter interference of PHS by GSM900, and D frequency range then may be by The interference for the nonsynchronous TD-LTE system disposed in adjacent frequency to other operators.

Specifically, China Mobile possesses this component frequency of the 1880-1900MHz of F-band by taking F-band as an example.Such as Fig. 2 institute Show, is F-band frequency location distribution map nearby, as seen from Figure 2, since frequency present position is special, F-band system exists With the interference between DCS1800, GSM900, PHS and CDMA2000/WCDMA system.And currently, industry to how accurate detection GSM900 interference still lacks effective detection scheme and (is merely able to that the mode of the frequency sweep on terrace is taken to determine GSM900's at present Interference, time-consuming and laborious accuracy is also high), in order to solve this problem, the invention proposes a kind of detection TD-LTE system whether By the detection scheme of GSM900 system interference, the program can fast and accurately detect the feelings of inter-system interference in real network Condition improves the precision of detection, and the accuracy of detection.

Summary of the invention

In order to fast and accurately detect the case where interfering between the base station TD-LTE and the station GSM900 in real network, improve The accuracy of detection accuracy and detection that the base station TD-LTE is interfered, it is dry that the present invention provides a kind of GSM900 second harmonics The detection method and device disturbed.

To achieve the goals above, the present invention provides a kind of detection methods of GSM900 second harmonic interference, wherein should Detection method includes the following steps:

Obtain the detection signal of the base station TD-LTE and the station GSM900 colocation site；

The base station TD-LTE is detected in busy periods, average interference function suffered by the RB in disturbed resource block RB set The waveform of rate whether there is at least one impulse waveform, wherein record No. RB for having each RB to be configured in disturbed RB set；

Average interference power in disturbed RB set is in the RB institute at impulse waveform by least one impulse waveform if it exists No. RB of configuration is recorded as pulse RB set, and whether second harmonic and second order inter-modulation frequency point to GSM900 fall into F-band, fall into Whether No. RB belong to pulse RB set, fall into the secondary humorous of F-band corresponding to the second harmonic and second order inter-modulation frequency point of F-band RB corresponding to wave and second order inter-modulation frequency point is successively analyzed, root in the average interference power situation of busy periods and idle section The probability interfered by GSM900 second harmonic the base station TD-LTE is determined according to analysis result；

At least one impulse waveform if it does not exist determines the base station TD-LTE not by the interference of GSM900 second harmonic.

Optionally, described to detect the base station TD-LTE in busy periods, suffered by the RB in disturbed resource block RB set Before the waveform of the average interference power arrived whether there is at least one impulse waveform, the detection method further include: determine institute State the busy periods and idle section that the base station TD-LTE is interfered.

Optionally, the specific steps of the determination base station TD-LTE is interfered busy periods and idle section are as follows: really The disturbed RB set of the fixed base station TD-LTE, and detect and done suffered by each RB in different time sections in disturbed RB set Power is disturbed, the average interference power testing result of disturbed RB set in different time periods is obtained；According to described in different time periods The average interference power testing result of disturbed RB set, is determined as the TD-LTE base for the average interference power maximum period The average interference power the smallest period is determined as the spare time that the base station TD-LTE is interfered by the busy periods that station is interfered Period.

Optionally, whether F-band fallen into the second harmonic of GSM900 and second order inter-modulation frequency point, fall into the secondary of F-band Corresponding to harmonic wave and second order inter-modulation frequency point No. RB whether belong to pulse RB set, fall into F-band second harmonic and second order it is mutual Average interference power situation of the RB corresponding to frequency modulation point in busy periods and idle section, the specific steps successively analyzed are as follows: The second harmonic of the BCCH channel of broadcast control of GSM900 is analyzed, the first analysis result is obtained；To the business of GSM900 The second harmonic and BCCH of channel TCH and the second order inter-modulation frequency point of TCH are analyzed, and the second analysis result is obtained；Respectively to falling Enter RB corresponding to the second order inter-modulation frequency point of the second harmonic of the BCCH of F-band, the second harmonic of TCH and BCCH and TCH busy The average interference power situation of period and idle section is analyzed, and third analysis result is obtained.

Optionally, the probability for determining the base station TD-LTE based on the analysis results and being interfered by GSM900 second harmonic Specific steps are as follows: according to preset weights, respectively to it is described first analysis result, second analysis result and third analyze result into Row weighting, and sum to the first analysis result, the second analysis result and the third analysis result after weighting, it obtains the sum value, Described and value is the probability value that the base station TD-LTE is interfered by GSM900 second harmonic.

Optionally, the second harmonic of the BCCH channel of broadcast control to GSM900 is analyzed, and obtains the first analysis As a result specific steps are as follows: whether the second harmonic for detecting the BCCH of GSM900 falls into F-band, and detects and fall into F-band Whether No. RB belong to the pulse RB set corresponding to the second harmonic of BCCH, obtains the first analysis result；When detecting The second harmonic of BCCH falls into F-band, and drop into F-band BCCH second harmonic corresponding to No. RB belong to the pulse When RB gathers, the numerical value of the first analysis result is 1；When the second harmonic for detecting the BCCH does not fall under F-band Or detect corresponding to the second harmonic for falling into the BCCH of F-band No. RB when being not belonging to pulse RB set, described first The numerical value for analyzing result is 0.

Optionally, the second order inter-modulation frequency point of the second harmonic of the Traffic Channel TCH to GSM900 and BCCH and TCH into Row analysis, obtains the specific steps of the second analysis result are as follows:

Whether the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH for detecting GSM900 fall into F-band, and sentence No. RB number corresponding to the second harmonic of the disconnected TCH for falling into F-band, fall into F-band BCCH and TCH second order inter-modulation frequency No. RB corresponding number of point, the TCH for falling into F-band second harmonic corresponding to No. RB number and fall into F-band Whether the sum of No. RB number corresponding to the second order inter-modulation frequency point of BCCH and TCH is greater than preset ratio in pulse RB set No. RB number, obtain the second analysis result；When the second order inter-modulation frequency point for the second harmonic and BCCH and TCH for detecting TCH In any one fall into F-band and fall into the TCH of F-band second harmonic or BCCH and TCH second order inter-modulation frequency point institute it is right No. RB number answered be greater than the pulse RB set in preset ratio RB number, or detect TCH second harmonic and The second order inter-modulation frequency point of BCCH and TCH each falls within F-band, and drops into the second harmonic and BCCH and TCH of the TCH of F-band When the sum of No. RB number corresponding to second order inter-modulation frequency point is greater than No. RB number of preset ratio in the RB pulse collection, The numerical value of the second analysis result is 1；When the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH does not have F-band is fallen with, or any one for detecting in the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH drops into F Frequency range and drop into No. RB corresponding to the second harmonic of TCH or the second order inter-modulation frequency point of BCCH and TCH of F-band number not Greater than the pulse RB set in preset ratio No. RB number, or detect TCH second harmonic and BCCH and TCH two F-band is each fallen in rank intermodulation frequency point and falls into the second harmonic of the TCH of F-band and the second order inter-modulation frequency point of BCCH and TCH When the sum of No. RB corresponding number is not more than No. RB number of preset ratio in pulse RB set, described second point The numerical value for analysing result is 0.

Optionally, described respectively to the second harmonic for the BCCH for falling into F-band, the second harmonic of TCH and BCCH and TCH RB corresponding to second order inter-modulation frequency point is analyzed in the average interference power situation of busy periods and idle section, obtains third analysis As a result specific steps are as follows: calculate separately the second harmonic and BCCH and TCH of the second harmonic, TCH that fall into the BCCH of F-band No. RB corresponding to second order inter-modulation frequency point, and RB corresponding to detecting be calculated No. RB the busy periods and idle section by The average interference power arrived determines the minimum value for the average interference power that the busy periods and idle section are subject to, judges busy periods Whether the difference of the minimum value for the average interference power that the minimum value and idle section for the average interference power being subject to are subject to is greater than one Preset threshold obtains third analysis result；When the difference is not less than a preset threshold, the numerical value of the third analysis result It is 1；When the difference is less than a preset threshold, the numerical value of the third analysis result is 0.

Optionally, whether No. RB belong to the pulse corresponding to the second harmonic for the BCCH that the detection falls into F-band The specific steps of RB set are as follows: calculate the frequency of the BCCH of the station GSM900 configuration, the calculation formula of the frequency of the BCCH Are as follows: f_BCCH=935+0.2k or f_BCCH=935+0.2 (m-1024), wherein f_BCCHIndicate the frequency of BCCH, k and m are indicated The frequency point number of BCCH, the value range of k are 1≤k≤124, and the value range of m is 975≤m≤1023；According to f_BCCH, calculate No. RB corresponding to the second harmonic of BCCH, wherein No. RB calculation formula corresponding to the second harmonic of the BCCH are as follows: RB_BCCH*2=ROUND (((f_BCCH*2-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_BCCH*2It indicates No. RB corresponding to the second harmonic of BCCH, f_BCCH*2Indicate the second harmonic of BCCH, f_LTE-CENTERIndicate the configuration of the base station TD-LTE Channel center frequency point frequency, BW indicate channel width, ROUND expression rounding calculating is carried out to the numerical value being calculated； No. RB matches with No. RB in pulse RB set corresponding to second harmonic by BCCH, if in pulse RB set Include No. RB corresponding to the second harmonic of BCCH, then corresponding to the second harmonic of the BCCH No. RB belong to the pulse RB set.

Optionally, No. RB number corresponding to the second harmonic for the TCH that the judgement falls into F-band falls into F-band RB corresponding to No. RB number, the second harmonic for the TCH for falling into F-band corresponding to the second order inter-modulation frequency point of BCCH and TCH Number number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB the sum of number whether be greater than institute State the specific steps of No. RB number of preset ratio in pulse RB set are as follows: calculate the frequency of the TCH of the station GSM900 configuration Rate, the calculation formula of the frequency of the TCH are as follows: f_TCHi=935+0.2K or f_TCHi=935+0.2 (m-1024), wherein f_TCHiTable Show the frequency of i-th of TCH, i indicates to be greater than 0 integer, and k and m indicate the frequency point number of TCH, the value range of k for 1≤k≤ 124, m value range is 975≤m≤1023；According to f_TCHi, No. RB is calculated corresponding to the second harmonic of TCH, wherein institute State No. RB corresponding to the second harmonic of TCH calculation formula are as follows: RB_TCHi*2=ROUND (((f_TCHi*2-f_LTE-CENTER+BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_TCHi*2No. RB is indicated corresponding to the second harmonic of i-th of TCH, f_TCHi*2Indicate the frequency of the second harmonic of i-th of TCH；The frequency of the second order inter-modulation frequency point of the BCCH and TCH is calculated, it is described The calculation formula of the frequency of the second order inter-modulation frequency point of BCCH and TCH are as follows: f_BCCH+TCHi=f_BCCH+f_TCHi, wherein f_BCCH+TCHiIt indicates The frequency of the second order inter-modulation frequency point of BCCH and i-th of TCH；According to f_BCCH+BCHi, calculate the second order inter-modulation frequency point institute of BCCH and TCH Corresponding No. RB, No. RB calculation formula corresponding to the second order inter-modulation frequency point of the BCCH and TCH are as follows: RB_BCCH+TCHi= ROUND(((f_BCCH+TCHi-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_BCCH+TCHiIndicate BCCH No. RB corresponding to second order inter-modulation frequency point with i-th of TCH；It calculates separately and falls into corresponding to the second harmonic of the TCH of F-band No. RB number N₁, fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number N₂With fall into F-band TCH second harmonic corresponding to No. RB number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to The sum of No. RB number N₃；By N₁、N₂And N₃Numerical value respectively with No. RB number N in pulse RB set₀Compare, if N₁With N₀Ratio, N₂With N₀Ratio, N₃With N₀Ratio be greater than a default value, then fall into the TCH of F-band second harmonic institute it is right No. RB number corresponding to the second order inter-modulation frequency point of No. RB number, the BCCH and TCH that fall into F-band answered falls into F-band TCH second harmonic corresponding to No. RB number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to The sum of No. RB number is greater than No. RB number of preset ratio in pulse RB set.

According to another aspect of the invention, a kind of detection device of GSM900 second harmonic interference, application are additionally provided In the base station TD-LTE of F-band, the detection device includes: acquisition module, for obtaining the base station TD-LTE and GSM900 It stands the detection signal of colocation site；Judgment module, for detecting the base station TD-LTE in busy periods, disturbed resource block RB set In RB suffered by the waveform of average interference power whether there is at least one impulse waveform, wherein remember in disturbed RB set Record has No. RB that each RB is configured；Analysis module will be average in disturbed RB set at least one impulse waveform if it exists Configured No. RB of the RB that jamming power is at impulse waveform is recorded as pulse RB set, the second harmonic to GSM900 and two Whether whether rank intermodulation frequency point falls into corresponding to F-band, the second harmonic for falling into F-band and second order inter-modulation frequency point No. RB belongs to Pulse RB set falls into being averaged in busy periods and idle section of RB corresponding to the second harmonic and second order inter-modulation frequency point of F-band Jamming power situation, is successively analyzed, and determines that the base station TD-LTE is dry by GSM900 second harmonic based on the analysis results The probability disturbed；At least one impulse waveform if it does not exist determines the base station TD-LTE not by the interference of GSM900 second harmonic.

Optionally, the detection device further include: detection module, for determining that the base station TD-LTE is interfered busy Period and idle section.

Optionally, the detection module is further used for, and determines the disturbed RB set of the base station TD-LTE, and detects not With jamming power suffered by each RB in RB disturbed in period set, the flat of disturbed RB set in different time periods is obtained Equal jamming power testing result；According to the average interference power testing result of the disturbed RB set in different time periods, will put down The equal jamming power maximum period is determined as the busy periods that the base station TD-LTE is interfered, by average interference power minimum Period be determined as the idle section that the base station TD-LTE is interfered.

Optionally, the analysis module includes: the first analysis submodule, for the BCCH channel of broadcast control to GSM900 Second harmonic analyzed, obtain the first analysis result；Second analysis submodule, for the Traffic Channel TCH to GSM900 Second harmonic and the second order inter-modulation frequency point of BCCH and TCH analyzed, obtain the second analysis result；Third analyzes submodule, For the second harmonic of second harmonic, TCH respectively to the BCCH for falling into F-band and the second order inter-modulation frequency point institute of BCCH and TCH Corresponding RB is analyzed in the average interference power situation of busy periods and idle section, obtains third analysis result.

Optionally, the analysis module is further used for, according to preset weights, respectively to the first analysis result, the Two analysis results and third analysis result are weighted, and to the first analysis result, the second analysis result and the third after weighting Analysis result is summed, and is obtained the sum value, and described and value is what the base station TD-LTE was interfered by GSM900 second harmonic Probability value.

Optionally, the first analysis submodule is further used for, and whether the second harmonic for detecting the BCCH of GSM900 falls Enter F-band, and detect corresponding to the second harmonic for the BCCH for falling into F-band No. RB and whether belong to the pulse RB set, obtains To the first analysis result；When the second harmonic for detecting BCCH falls into F-band, and drop into the second harmonic of the BCCH of F-band When corresponding No. RB belongs to pulse RB set, the numerical value of the first analysis result is 1；When detecting the BCCH's Second harmonic does not fall under F-band or detects that No. RB is not belonging to institute corresponding to the second harmonic for falling into the BCCH of F-band When stating pulse RB set, the numerical value of the first analysis result is 0.

Optionally, it is described second analysis submodule be further used for, detect the TCH of GSM900 second harmonic and BCCH with Whether the second order inter-modulation frequency point of TCH falls into F-band, and judges No. RB corresponding to the second harmonic for the TCH for falling into F-band Number, fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number, fall into F-band TCH it is secondary No. RB number corresponding to harmonic wave and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number The sum of whether be greater than the pulse RB set in preset ratio No. RB number, obtain the second analysis result；When detecting TCH Second harmonic and BCCH and TCH second order inter-modulation frequency point in any one fall into F-band and fall into the two of the TCH of F-band No. RB number corresponding to the second order inter-modulation frequency point of subharmonic or BCCH and TCH is greater than preset ratio in pulse RB set RB number, or detect that the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH each fall within F-band, and drop into The sum of No. RB number corresponding to the second harmonic and BCCH of the TCH of F-band and the second order inter-modulation frequency point of TCH is greater than the RB In pulse collection when No. RB number of preset ratio, the numerical value of the second analysis result is 1；When detecting that TCH's is secondary Harmonic wave and the second order inter-modulation frequency point of BCCH and TCH do not fall within F-band, or detect the second harmonic and BCCH and TCH of TCH Second order inter-modulation frequency point in any one drop into F-band and drop into the second harmonic or BCCH and TCH of the TCH of F-band Second order inter-modulation frequency point corresponding to No. RB number no more than the pulse RB set in preset ratio No. RB number, or It detects and each falls within F-band in the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH and fall into the TCH's of F-band The sum of No. RB number corresponding to the second order inter-modulation frequency point of second harmonic and BCCH and TCH is no more than in pulse RB set When No. RB number of preset ratio, the numerical value of the second analysis result is 0.

Optionally, the third analysis submodule is further used for, and calculates separately the secondary humorous of the BCCH for falling into F-band No. RB corresponding to the second order inter-modulation frequency point of wave, the second harmonic of TCH and BCCH and TCH, and detect the RB being calculated The average interference power that RB corresponding to number is subject in the busy periods and idle section, determine the busy periods and idle section by Average interference power minimum value, judge that the minimum value for the average interference power that busy periods are subject to is averaged with what idle section was subject to Whether the difference of the minimum value of jamming power is greater than a preset threshold, obtains third analysis result；When the difference is not less than one When preset threshold, the numerical value of the third analysis result is 1；When the difference is less than a preset threshold, the third analysis As a result numerical value is 0.

Optionally, the first analysis submodule includes: the first computing unit, for calculating the station GSM900 configuration The frequency of BCCH, the calculation formula of the frequency of the BCCH are as follows: f_BCCH=935+0.2k or f_BCCH=935+0.2 (m-1024), In, f_BCCHIndicate the frequency of BCCH, k and m indicate that the frequency point number of BCCH, the value range of k are 1≤k≤124, the value model of m It encloses for 975≤m≤1023；According to f_BCCH, No. RB is calculated corresponding to the second harmonic of BCCH, wherein the BCCH's is secondary No. RB calculation formula corresponding to harmonic wave are as follows: RB_BCCH*2=ROUND (((f_BCCH*2-f_LTE-CENTER+BW*(0.5-0.05)- 0.18/2)/0.18)+1), wherein RB_BCCH*2No. RB is indicated corresponding to the second harmonic of BCCH, f_BCCH*2Indicate the two of BCCH Subharmonic, f_LTE-CENTERIndicate the frequency of the center frequency point of the channel of the base station TD-LTE configuration, BW indicates channel width, ROUND Expression carries out rounding calculating to the numerical value being calculated；By be calculated No. RB and the RB phase in pulse RB set Match, if in pulse RB set including No. RB be calculated, No. RB category corresponding to the second harmonic of the BCCH Gather in the pulse RB.

Optionally, the second analysis submodule includes: the second computing unit, for calculating the station GSM900 configuration The frequency of TCH, the calculation formula of the frequency of the TCH are as follows: f_TCHi=935+0.2k or f_TCHi=935+0.2 (m-1024), In, f_TCHiIndicate the frequency of i-th of TCH, i indicates to be greater than 0 integer, and k and m indicate the frequency point number of TCH, the value range of k For 1≤k≤124, the value range of m is 975≤m≤1023；According to f_TCHi, No. RB is calculated corresponding to the second harmonic of TCH, Wherein, No. RB calculation formula corresponding to the second harmonic of the TCH are as follows: RB_TCHi*2=ROUND (((f_TCHi*2-f_LTE-CENTER + BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_TCHi*2Indicate RB corresponding to the second harmonic of i-th of TCH Number, f_TCHi*2Indicate the frequency of the second harmonic of i-th of TCH；Calculate the frequency of the second order inter-modulation frequency point of the BCCH and TCH, institute State the calculation formula of the frequency of the second order inter-modulation frequency point of BCCH and TCH are as follows: f_BCCH+TCHi=f_BCCH+f_TCHi, wherein f_BCCH+TCHiTable Show the frequency of the second order inter-modulation frequency point of BCCH and i-th of TCH；According to f_BCCH+TCHi, calculate the second order inter-modulation frequency point of BCCH and TCH No. RB calculation formula corresponding to the second order inter-modulation frequency point of corresponding No. RB, the BCCH and TCH are as follows: RB_BCCH+TCHi= ROUND(((f_BCCH+TCHi-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_BCCH+TCHiIndicate BCCH No. RB corresponding to second order inter-modulation frequency point with i-th of TCH；It calculates separately and falls into corresponding to the second harmonic of the TCH of F-band No. RB number N₁, fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number N₂With fall into F-band TCH second harmonic corresponding to No. RB number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to The sum of No. RB number N₃；By N₁、N₂And N₃Numerical value respectively with No. RB number N in pulse RB set₀Compare, if N₁With N₀Ratio, N₂With N₀Ratio, N₃With N₀Ratio be greater than a default value, then fall into the TCH of F-band second harmonic institute it is right No. RB number corresponding to the second order inter-modulation frequency point of No. RB number, the BCCH and TCH that fall into F-band answered falls into F-band TCH second harmonic corresponding to No. RB number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to The sum of No. RB number is greater than No. RB number of preset ratio in pulse RB set.

The beneficial effects of the present invention are: whether the present invention is fallen by second harmonic to GSM900 and second order inter-modulation frequency point Whether No. RB belong to pulse RB set, fall into F frequency corresponding to F-band, the second harmonic for falling into F-band and second order inter-modulation frequency point Section second harmonic and second order inter-modulation frequency point corresponding to RB busy periods and idle section average interference power situation, successively into Row analysis, and the case where base station TD-LTE is interfered by GSM900 second harmonic and the base station TD-LTE are obtained based on the analysis results The probability interfered by GSM900 second harmonic.This kind of detection method can fast and accurately detect TD-LTE in real network The case where interfering between base station and the station GSM900, improves the accurate of detection accuracy that the base station TD-LTE is interfered and detection Property.

Detailed description of the invention

Fig. 1 shows the schematic diagrames of GSM900 second harmonic interference；

Fig. 2 indicates F-band frequency location distribution map nearby；

Fig. 3 indicates the key step flow chart for the detection method that GSM900 second harmonic interferes in the embodiment of the present invention；

Fig. 4 indicates the detailed step flow chart for the detection method that GSM900 second harmonic interferes in the embodiment of the present invention； And

Fig. 5 indicates the structural block diagram for the detection device that GSM900 second harmonic interferes in the embodiment of the present invention.

Specific embodiment

Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.

As shown in figure 3, for the key step stream of the detection method of GSM900 second harmonic interference in the embodiment of the present invention Cheng Tu mainly includes the following steps:

Step S101 obtains the detection signal of the base station TD-LTE and the station GSM900 colocation site.

In this step, the detection signal of the base station TD-LTE and the station GSM900 colocation site is obtained.Specifically, obtaining TD- Before the detection signal of LTE base station and the station GSM900 colocation site, it is first determined the base station TD-LTE is the base station TD-LTE of F-band, If the base station TD-LTE is not the base station TD-LTE of F-band, the interference of GSM900 second harmonic is not present in the base station TD-LTE；If The base station TD-LTE is the base station TD-LTE of F-band, then detect the base station TD-LTE whether with GSM900 colocation site, if the base station TD-LTE With GSM900 not co-sited, then the interference of GSM900 second harmonic is equally not present in the base station TD-LTE, if the base station TD-LTE with GSM900 colocation site then obtains the detection signal of the base station TD-LTE and the station GSM900 colocation site.

Step S102 detects the base station TD-LTE in busy periods, is averaged suffered by the RB in disturbed resource block RB set The waveform of jamming power whether there is at least one impulse waveform.

In this step, the detection base station TD-LTE is in busy periods, average interference suffered by the RB in disturbed RB set The waveform of power whether there is at least one impulse waveform, wherein include No. RB of each RB configuration in disturbed RB set.Tool Body, average interference power suffered by each RB in disturbed RB set is detected first, then by each average interference power Numerical value be made into waveform, finally check, the waveform being made of average interference power is with the presence or absence of at least one impulse waveform.

Step S103, at least one impulse waveform, is in impulse wave for average interference power in disturbed RB set if it exists Configured No. RB of RB at shape is recorded as pulse RB set, and whether second harmonic and second order inter-modulation frequency point to GSM900 fall into Whether No. RB belong to pulse RB set, fall into F frequency corresponding to F-band, the second harmonic for falling into F-band and second order inter-modulation frequency point Section second harmonic and second order inter-modulation frequency point corresponding to RB busy periods and idle section average interference power situation, successively into Row analysis, determines the probability interfered by GSM900 second harmonic the base station TD-LTE based on the analysis results；If it does not exist at least one A impulse waveform determines the base station TD-LTE not by the interference of GSM900 second harmonic.

In this step, if detecting wave composed by the value of average interference power suffered by the RB in disturbed RB set There are at least one impulse waveforms for shape, then are configured the RB that average interference power is at impulse waveform in disturbed RB set No. RB is recorded as pulse RB set, and whether second harmonic to GSM900 and second order inter-modulation frequency point fall into F-band, fall into F frequency No. RB second harmonic for whether belonging to pulse RB set, falling into F-band corresponding to the second harmonic and second order inter-modulation frequency point of section With RB corresponding to second order inter-modulation frequency point in the average interference power situation of busy periods and idle section, successively analyzed, according to Analysis result determines the probability that the base station TD-LTE is interfered by GSM900 second harmonic；If detecting the RB institute in disturbed RB set Impulse waveform is not present in waveform composed by the value for the average interference power being subject to, then the base station TD-LTE is not humorous by GSM900 bis- times The interference of wave.Specifically, can the second harmonic of BCCH channel of broadcast control and Traffic Channel TCH to GSM900, BCCH and The second order inter-modulation frequency point of TCH is detected.

As shown in figure 4, for the detailed step stream of the detection method of GSM900 second harmonic interference in the embodiment of the present invention Cheng Tu mainly includes the following steps:

Step S101 obtains the detection signal of the base station TD-LTE and the station GSM900 colocation site.

Step S201 determines busy periods and idle section that the base station TD-LTE is interfered.

In this step, specifically, it is first determined disturbed RB in the base station TD-LTE set, it is secondary due to the station GSM900 The frequency of harmonic wave is likely to be any one frequency of the F-band of the base station TD-LTE, it is therefore desirable to detect whole RB, i.e., it is total 100 RB are formed disturbed RB as a whole and gathered by 100 RB, wherein include each RB institute in disturbed RB set No. RB of configuration.Then the jamming power being subject on each RB in disturbed RB set in different time sections is detected, to obtain not The average interference power result gathered with the disturbed RB of period, it is preferred that can detecte the uplink interference being subject on each RB Power；In addition, detecting the operation for the jamming power being subject on each RB in disturbed RB set can be carried out by the base station TD-LTE, and Network management system can be uploaded to.Finally, will be averaged according to the average interference power testing result of disturbed RB set in different time periods The jamming power maximum period is determined as the busy periods that the base station TD-LTE is interfered, by the average interference power the smallest time Section is determined as the idle section that the base station TD-LTE is interfered.

The detailed process of busy periods and idle section that the determining base station TD-LTE is interfered is exemplified below.

Assuming that detecting jamming power suffered by each RB in the disturbed RB set in 3 hours.

Each hour is defined as a period, then detects each RB in the disturbed RB set of 3 periods in total Suffered jamming power.For the period of each hour, every 15 minutes in uplink pilot time slot UpPTS time slot Carry out the detection of a uplink interference power respectively with uplink service subframe, i.e., available 4 groups of each hour period The sampled data of the sampled data of UpPTS time slot and 4 groups of uplink service subframes.Specifically, can recorde in each 15 minutes, The jamming power average value and jamming power maximum value detected on each RB in disturbed RB set in UpPTS time slot, for example, false If giving disturbed RB collection is combined into 100 RB all in 20M bandwidth, then the sampled data of every group of UpPTS time slot is in each RB On have a jamming power average value and a jamming power maximum value, i.e., the sampled data of every group UpPTS time slot is one 100 × 2 matrix array, the first row of the matrix array can be expressed as the jamming power average value on 100 RB, and secondary series can be with The jamming power maximum value being expressed as on corresponding 100 RB.Likewise, can also be obtained within each hour period There is the sampled data of the uplink service subframe of jamming power average value and jamming power maximum value to 4 groups of records.

It is average after corresponding data in the sampled data of 4 groups of UpPTS time slots in each hour are summed, it obtains The sampled data of one group of UpPTS time slot after average, for example, respectively by the first row in the sampled data of four groups of UpPTS time slots The data of the first row are summed, then average, a sampled data after being averaged, and so on, it is available average The sampled data of one group of UpPTS time slot afterwards；It will be corresponding in the sampled data of 4 groups of uplink service subframes in each hour Data are average after being summed, the sampled data of one group of uplink service subframe after being averaged, for example, respectively by four groups of uplinks The data of first row the first row in the sampled data of service subframe are summed, and then average, one after being averaged is adopted Sample data, and so on, it is available it is average after one group of uplink service subframe sampled data.

Finally by each hour in 3 hours period obtain it is average after one group of sampled data be recorded as AVP1, AVP2 and AVP3.It should be noted that the period that AVP1, AVP2 and AVP3 can be each hour in 3 hours obtains Arrive it is average after UpPTS time slot sampled data, be also possible to that each hour in 3 hours period obtained it is average after Uplink service subframe sampled data, be equally also possible to that each hour in 3 hours period obtained it is average after The sampled data of UpPTS time slot and the sampled data of uplink service subframe.It will be corresponding to the maximum value in AVP1, AVP2 and AVP3 Hour segment record be busy periods, by hour segment record corresponding to the minimum value in AVP1, AVP2 and AVP3 be idle section.And And the average interference power being subject in busy periods is recorded as T1, the average interference power being subject in idle section is recorded as T2.

Step S202 detects the base station TD-LTE in busy periods, is averaged suffered by the RB in disturbed resource block RB set The waveform of jamming power whether there is at least one impulse waveform.

In this step, the detection base station TD-LTE is in busy periods, average interference suffered by the RB in disturbed RB set The waveform of power whether there is at least one impulse waveform, wherein include No. RB of each RB configuration in disturbed RB set.

Step S203, at least one impulse waveform if it exists, to the second harmonic of the BCCH channel of broadcast control of GSM900 It is analyzed, obtains the first analysis result.Preferably, impulse waveform if it does not exist, it is determined that the base station TD-LTE is not by GSM900 Second harmonic interference.

In this step, there are at least one arteries and veins for the waveform of average interference power suffered by the RB in disturbed RB set When rushing waveform, the correlation circumstance of the second harmonic of BCCH is detected.Specifically, whether the second harmonic of the BCCH of detection GSM900 falls Enter F-band, and detect corresponding to the second harmonic for the BCCH for falling into F-band No. RB and whether belong to pulse RB set, obtains the One analysis result；When the second harmonic for detecting BCCH falls into F-band, and the second harmonic institute for dropping into the BCCH of F-band is right When No. RB answered belongs to pulse RB set, the numerical value of the first analysis result is 1；When the second harmonic for detecting BCCH is not fallen within When falling into corresponding to the second harmonic of the BCCH of F-band No. RB to F-band or detect and being not belonging to pulse RB set, first point The numerical value for analysing result is 0.

In the following, specifically introducing corresponding to the second harmonic for the BCCH for falling into F-band whether No. RB belong to pulse RB set Calculating process.

Firstly, it is necessary to calculate the frequency of the BCCH of the station GSM900 configuration.

The calculation formula of the frequency of BCCH are as follows:

f_BCCH=935+0.2k or f_BCCH=935+0.2 (m-1024),

Wherein, f_BCCHIndicate the frequency of BCCH, k and m indicate the frequency point number of BCCH, the value range of k for 1≤k≤ 124, m value range is 975≤m≤1023.

Secondly, according to the f being calculated_BCCH, No. RB is calculated corresponding to the second harmonic of BCCH.

No. RB calculation formula corresponding to the second harmonic of BCCH are as follows:

RB_BCCH*2=ROUND (((f_BCCH*2-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1),

Wherein, RB_BCCH*2No. RB is indicated corresponding to the second harmonic of BCCH, f_BCCH*2Indicate the second harmonic of BCCH, i.e., f_BCCH*2=2*f_BCCH, f_LTE-CENTERIndicating the frequency of the center frequency point of the channel of the base station TD-LTE configuration, BW indicates channel width, ROUND expression carries out rounding calculating to the numerical value being calculated.

Finally, corresponding to second harmonic by BCCH No. RB match with No. RB in pulse RB set, if pulse RB Include in set No. RB corresponding to the second harmonic of BCCH, then corresponding to the second harmonic of BCCH No. RB belong to pulse RB Set.

The second order inter-modulation frequency point of step S204, second harmonic and BCCH and TCH to the Traffic Channel TCH of GSM900 carry out Analysis, obtains the second analysis result.

In this step, the correlation circumstance of the second order inter-modulation frequency point of the second harmonic to the TCH of GSM900 and BCCH and TCH It is analyzed, obtains the second analysis result.Specifically, the second harmonic of the TCH of detection GSM900 and the second order of BCCH and TCH are mutual Whether frequency modulation point falls into F-band, and judge No. RB number, BCCH corresponding to the second harmonic for the TCH for falling into F-band with The second order inter-modulation frequency point institute of No. RB number, the second harmonic of TCH and BCCH and TCH corresponding to the second order inter-modulation frequency point of TCH Whether the sum of corresponding No. RB number is greater than No. RB number of preset ratio in pulse RB set, obtains the second analysis knot Fruit；When the second harmonic for detecting TCH falls into F-band, and fall into F-band TCH second harmonic corresponding to No. RB When number is greater than the number of the RB of preset ratio in pulse RB set, the numerical value of the second analysis result is 1；When detect BCCH with The second order inter-modulation frequency point of TCH falls into F-band, and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB When number is greater than the number of the RB of preset ratio in pulse RB set, the numerical value of the second analysis result is 1；When detecting TCH's The second order inter-modulation frequency point of second harmonic and BCCH and TCH each fall within F-band, and drop into F-band TCH second harmonic and The sum of No. RB number corresponding to the second order inter-modulation frequency point of BCCH and TCH is greater than No. RB of preset ratio in RB pulse collection When number, the numerical value of the second analysis result is 1.

When the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH does not fall within F-band, second The numerical value for analyzing result is 0；When the second harmonic for detecting TCH drops into F-band, but drop into F-band TCH it is secondary humorous No. RB number corresponding to wave is no more than when No. RB number of preset ratio, second analyzes the number of result in pulse RB set Value is 0；When the second order inter-modulation frequency point for detecting BCCH and TCH drops into F-band, but drop into F-band BCCH and TCH two No. RB number corresponding to rank intermodulation frequency point is no more than when No. RB number of preset ratio, second is analyzed in pulse RB set As a result numerical value is 0；When each falling within F-band in the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH, But it is little to fall into the sum of No. RB number corresponding to the second harmonic of the TCH of F-band and the second order inter-modulation frequency point of BCCH and TCH In pulse RB set when No. RB number of preset ratio, the numerical value of the second analysis result is 0.

In the following, successively specifically introducing whether No. RB corresponding to the second harmonic for the TCH for falling into F-band number is greater than arteries and veins Rush the second order inter-modulation frequency point institute of the calculating process of No. RB number of preset ratio in RB set, the BCCH and TCH that fall into F-band Whether corresponding No. RB number is greater than the calculating process of No. RB number of preset ratio in pulse RB set, falls into F-band TCH second harmonic corresponding to No. RB number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to Whether the sum of No. RB number is greater than the calculating process of No. RB number of preset ratio in pulse RB set.

One, calculate whether No. RB corresponding to the second harmonic of TCH number is greater than preset ratio in pulse RB set The process of No. RB number is as follows:

Firstly, calculating the frequency of the TCH of the station GSM900 configuration.

The calculation formula of the frequency of TCH are as follows:

f_TCHi=935+0.2k or f_TCHi=935+0.2 (m-1024),

Wherein, f_TCHiIndicate the frequency of i-th of TCH, i indicates to be greater than 0 integer, and k and m indicate the frequency point number of TCH, k Value range be 1≤k≤124, the value range of m is 975≤m≤1023；

Secondly, according to f_TCHi, No. RB is calculated corresponding to the second harmonic of TCH.

Wherein, No. RB calculation formula corresponding to the second harmonic of TCH are as follows:

RB_TCHi*2=ROUND (((f_TCHi*2-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1),

Wherein, RB_TCHi*2No. RB is indicated corresponding to the second harmonic of i-th of TCH, f_TCHi*2Indicate that i-th of TCH's is secondary The frequency of harmonic wave, i.e. f_TCHi*2=2*f_TCHi, f_LTE-CENTERIndicate the frequency of the center frequency point of the channel of the base station TD-LTE configuration, BW Indicate channel width, ROUND expression carries out rounding calculating to the numerical value being calculated.

Finally, calculating No. RB corresponding to the second harmonic for the TCH for falling into F-band number N₁, and by N₁With pulse RB collection No. RB number N in conjunction₀Compare, if N₁With N₀Ratio be greater than a default value, then, RB corresponding to the second harmonic of TCH Number number be greater than pulse RB set in preset ratio No. RB number；Preferably, preset ratio can be the th5 (ginseng of th5 Examining value can be 50%), that is, to work as N₁/N₀When > th5, No. RB number corresponding to the second harmonic of TCH is gathered greater than pulse RB No. RB number of middle preset ratio.

Two, calculate whether No. RB corresponding to the second order inter-modulation frequency point of the BCCH and TCH that fall into F-band number is greater than arteries and veins The process for rushing No. RB number of preset ratio in RB set is as follows:

Firstly, calculating the frequency of the second order inter-modulation frequency point of BCCH and TCH.

The calculation formula of the frequency of the second order inter-modulation frequency point of BCCH and TCH are as follows:

f_BCCH+TCHi=f_BCCH+f_TCHi,

Wherein, f_BCCH+TCHiIndicate the frequency of the second order inter-modulation frequency point of BCCH and i-th of TCH, f_BCCHIndicate the frequency of BCCH Rate, f_TCHiIndicate the frequency of i-th of TCH.

Secondly, according to f_BCCH+TCHi, No. RB is calculated corresponding to the second order inter-modulation frequency point of BCCH and TCH.

No. RB calculation formula corresponding to the second order inter-modulation frequency point of BCCH and TCH are as follows:

RB_BCCH+TCHi=ROUND (((f_BCCH+TCHi-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1),

Wherein, RB_BCCH+TCHiNo. RB is indicated corresponding to the second order inter-modulation frequency point of BCCH and i-th of TCH, f_LTE-CENTERTable Show the frequency of the center frequency point of the channel of the base station TD-LTE configuration, BW indicates channel width, and ROUND is indicated to the number being calculated Value carries out rounding calculating.

Finally, calculating No. RB corresponding to the second order inter-modulation frequency point of the BCCH and TCH that fall into F-band number N₂, and by N₂ With No. RB in pulse RB set number N₀Compare, if N₂With N₀Ratio be greater than a default value, then, the two of BCCH and TCH No. RB number corresponding to rank intermodulation frequency point is greater than No. RB number of preset ratio in pulse RB set；Preferably, it presets Ratio can be th5 (reference value of th5 can be 50%), that is, work as N₂/N₀When > th5, RB corresponding to the second harmonic of TCH Number number be greater than pulse RB set in preset ratio No. RB number.

Three, calculate No. RB number corresponding to the second harmonic for the TCH for falling into F-band and fall into the BCCH of F-band with Whether the sum of No. RB number corresponding to the second order inter-modulation frequency point of TCH is greater than No. RB of preset ratio in pulse RB set Several processes is as follows:

Firstly, calculating No. RB number corresponding to the second harmonic for the TCH for falling into F-band and falling into the BCCH of F-band The sum of No. RB number N corresponding to second order inter-modulation frequency point with TCH₃, wherein N₃=N₁+N₂；

Secondly, by N₃With No. RB in pulse RB set number N₀Compare, if N₃With N₀Ratio be greater than a default value, So, the second order for falling into No. RB number corresponding to the second harmonic of the TCH of F-band and falling into the BCCH and TCH of F-band is mutual The sum of No. RB number corresponding to frequency modulation point is greater than No. RB number of preset ratio in pulse RB set；Preferably, it presets Ratio can be th5 (reference value of th5 can be 50%), that is, work as N₃/N₀When > th5, the second harmonic of the TCH of F-band is fallen into No. RB the sum of number corresponding to the second order inter-modulation frequency point of corresponding No. RB number and the BCCH and TCH that fall into F-band Greater than No. RB number of preset ratio in pulse RB set.

Step S205, respectively to the two of the second harmonic for the BCCH for falling into F-band, the second harmonic of TCH and BCCH and TCH RB corresponding to rank intermodulation frequency point is analyzed in the average interference power situation of busy periods and idle section, obtains third analysis knot Fruit.

In this step, specifically, calculate separately the second harmonic, TCH that fall into the BCCH of F-band second harmonic and No. RB corresponding to the second order inter-modulation frequency point of BCCH and TCH, and RB corresponding to detecting be calculated No. RB in busy periods and The average interference power that idle section is subject to, determines the minimum value for the average interference power that busy periods and idle section are subject to, and judgement is busy Whether the difference of the minimum value for the average interference power that period and idle section are subject to is greater than a preset threshold, obtains third analysis knot Fruit；When being most worth for average interference power that the minimum value and idle section that detect average interference power that busy periods are subject to are subject to When difference is not less than a preset threshold, the numerical value that third analyzes result is 1；When the average interference power for detecting that busy periods are subject to Minimum value and the difference being most worth of average interference power that is subject to of idle section less than a preset threshold when, third analyzes result Numerical value is 0.

Specifically, detecting the minimum value T for the average interference power that busy periods are subject to first_1v.Busy periods are subject to average dry Disturb the minimum value T of power_1vCalculation formula are as follows:

Wherein, i is the integer greater than 0,RB corresponding to second harmonic for BCCH is in busy periods Average interference power,Average interference function of the RB corresponding to second harmonic for i-th of TCH in busy periods Rate,For average interference of the RB in busy periods corresponding to the second order inter-modulation frequency point of BCCH and i-th of TCH Power, mean function representation choose the minimum value in all numerical value.

Secondly, the minimum value T for the average interference power that detection idle section is subject to_2v.The average interference power that idle section is subject to Minimum value T_2vCalculation formula are as follows:,

Wherein, i is the integer greater than 0,RB corresponding to second harmonic for BCCH is in idle section Average interference power,Average interference function of the RB corresponding to second harmonic for i-th of TCH in idle section Rate,For average interference of the RB corresponding to the second order inter-modulation frequency point of BCCH and i-th of TCH in idle section Power, mean function representation choose the minimum value in all numerical value.

Finally, calculating T_1vWith T_2vDifference, work as T_1vWith T_2vDifference be not less than a preset threshold when, third analyze result Numerical value be 1；Work as T_1vWith T_2vDifference less than a preset threshold when, third analyze result numerical value be 0.Specifically, this is default Threshold value can be th6 (numerical value of th6 can be 5), that is, work as T_1v-T_2vWhen >=th6, the numerical value that third analyzes result is 1, works as T_1v- T_2vWhen < th6, the numerical value that third analyzes result is 0.

Step S206, according to preset weights, respectively to first analysis result, second analysis result and third analyze result into Row weighting, and sum to the first analysis result, the second analysis result and the third analysis result after weighting, it obtains the sum value.

In this step, according to preset weights, result is analyzed to the first analysis result, the second analysis result and third respectively Be weighted, and to after weighting first analysis result, second analysis result and third analysis result sum, obtain and Value should and be worth the probability that as base station TD-LTE is interfered by GSM900 second harmonic.

As an example it is assumed that the numerical value that the numerical value of the first analysis result is the analysis of 1, preset weights W1, second result is 0, preset weights W2, third analyze result numerical value be 1, preset weights W3, then, after weighting first analysis result, Second analysis result and third analysis result and value W=1 × W1+0 × W2+1 × W3=W1+W3, i.e., the base station TD-LTE by The probability of GSM900 second harmonic interference is W1+W3.

Detection method in the present invention can fast and accurately detect that the base station TD-LTE and GSM900 stand in real network Between the case where interfering, improve the accuracy of detection accuracy and detection that the base station TD-LTE is interfered.

Fig. 5 is the structural block diagram of the detection device of GSM900 second harmonic interference in the embodiment of the present invention, GSM900 bis- Subharmonic interference detection device 300 include:

Module 301 is obtained, for obtaining the detection signal of the base station TD-LTE and the station GSM900 colocation site；

Judgment module 302, for detecting the base station TD-LTE in busy periods, suffered by the RB in disturbed resource block RB set The waveform of average interference power whether there is at least one impulse waveform, wherein record has each RB institute in disturbed RB set No. RB of configuration；

Average interference power in disturbed RB set is in by analysis module 303 at least one impulse waveform if it exists Configured No. RB of RB at impulse waveform is recorded as pulse RB set, and second harmonic and second order inter-modulation frequency point to GSM900 are Corresponding to the no second harmonic and second order inter-modulation frequency point for falling into F-band, falling into F-band No. RB whether belong to pulse RB set, RB corresponding to the second harmonic and second order inter-modulation frequency point of F-band is fallen into the average interference power feelings of busy periods and idle section Condition is successively analyzed, and determines the probability interfered by GSM900 second harmonic the base station TD-LTE based on the analysis results；If not depositing In at least one impulse waveform, determine the base station TD-LTE not by the interference of GSM900 second harmonic.

Optionally, detection device further include: detection module, for determining busy periods and spare time that the base station TD-LTE is interfered Period.

Optionally, detection module is further used for, and determines the disturbed RB set of the base station TD-LTE, and detects different time sections Jamming power suffered by each RB in interior disturbed RB set obtains the average interference function of disturbed RB set in different time periods Rate testing result；According to the average interference power testing result of disturbed RB set in different time periods, most by average interference power The big period is determined as the busy periods that the base station TD-LTE is interfered, and the average interference power the smallest period is determined as The idle section that the base station TD-LTE is interfered.

Optionally, analysis module 303 includes: the first analysis submodule, for the BCCH channel of broadcast control to GSM900 Second harmonic analyzed, obtain the first analysis result；Second analysis submodule, for the Traffic Channel TCH to GSM900 Second harmonic and the second order inter-modulation frequency point of BCCH and TCH analyzed, obtain the second analysis result；Third analyzes submodule, For the second harmonic of second harmonic, TCH respectively to the BCCH for falling into F-band and the second order inter-modulation frequency point institute of BCCH and TCH Corresponding RB is analyzed in the average interference power situation of busy periods and idle section, obtains third analysis result.

Optionally, analysis module 303 is further used for, according to preset weights, respectively to the first analysis result, the second analysis As a result it is weighted with third analysis result, and to the first analysis result, the second analysis result and the third analysis knot after weighting Fruit is summed, and is obtained the sum value, and value is the probability value that the base station TD-LTE is interfered by GSM900 second harmonic.

Optionally, the first analysis submodule is further used for, and whether the second harmonic for detecting the BCCH of GSM900 falls into F frequency Section, and detect fall into F-band BCCH second harmonic corresponding to No. RB whether belong to pulse RB set, obtain the first analysis As a result；When the second harmonic for detecting BCCH falls into F-band, and drop into F-band BCCH second harmonic corresponding to RB When number belonging to pulse RB set, the numerical value of the first analysis result is 1；When the second harmonic for detecting BCCH does not fall under F frequency Section detects corresponding to the second harmonic for falling into the BCCH of F-band No. RB when being not belonging to pulse RB set, the first analysis knot The numerical value of fruit is 0.

Optionally, the second analysis submodule is further used for, and detects the second harmonic and BCCH and TCH of the TCH of GSM900 Second order inter-modulation frequency point whether fall into F-band, and judge No. RB number corresponding to the second harmonic for the TCH for falling into F-band, Fall into the second harmonic of No. RB number corresponding to the second order inter-modulation frequency point of the BCCH and TCH of F-band, the TCH for falling into F-band No. RB the sum of number corresponding to the second order inter-modulation frequency point of corresponding No. RB number and the BCCH and TCH that fall into F-band Whether it is greater than No. RB number of preset ratio in pulse RB set, obtains the second analysis result；When detecting that TCH's is secondary humorous Any one in the second order inter-modulation frequency point of wave and BCCH and TCH fall into F-band and fall into the TCH of F-band second harmonic or No. RB number corresponding to the second order inter-modulation frequency point of BCCH and TCH is greater than the number of the RB of preset ratio in pulse RB set, Or detect that the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH each fall within F-band, and drop into the TCH of F-band Second harmonic and BCCH and TCH second order inter-modulation frequency point corresponding to No. RB the sum of number be greater than in RB pulse collection and preset When No. RB number of ratio, the numerical value of the second analysis result is 1；When the two of the second harmonic and BCCH and TCH that detect TCH Rank intermodulation frequency point does not fall within F-band, or detects in the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH Any one drop into F-band and drop into the TCH of F-band second harmonic or BCCH and TCH second order inter-modulation frequency point institute it is right No. RB number answered no more than pulse RB set in preset ratio No. RB number, or detect TCH second harmonic and It in the second order inter-modulation frequency point of BCCH and TCH each falls within F-band and falls into the second harmonic and BCCH and TCH of the TCH of F-band When the sum of No. RB number corresponding to second order inter-modulation frequency point is not more than No. RB number of preset ratio in pulse RB set, the The numerical value of two analysis results is 0.

Optionally, third analysis submodule is further used for, and calculates separately the second harmonic for falling into the BCCH of F-band, TCH Second harmonic and BCCH and TCH second order inter-modulation frequency point corresponding to No. RB, and detect corresponding to be calculated No. RB The average interference power that RB is subject in busy periods and idle section determines average interference power that busy periods and idle section are subject to most Small value judges the minimum value for the average interference power that the minimum value for the average interference power that busy periods are subject to and idle section are subject to Whether difference is greater than a preset threshold, obtains third analysis result；When difference is not less than a preset threshold, third analyzes result Numerical value be 1；When difference is less than a preset threshold, the numerical value that third analyzes result is 0.

Optionally, the first analysis submodule includes: the first computing unit, the frequency of the BCCH for calculating the configuration of the station GSM900 Rate, the calculation formula of the frequency of BCCH are as follows: f_BCCH=935+0.2k or f_BCCH=935+0.2 (m-1024), wherein f_BCCHIt indicates The frequency of BCCH, k and m indicate that the frequency point number of BCCH, the value range of k are 1≤k≤124, and the value range of m is 975≤m ≤1023；According to f_BCCH, No. RB is calculated corresponding to the second harmonic of BCCH, wherein RB corresponding to the second harmonic of BCCH Number calculation formula are as follows: RB_BCCH*2=ROUND (((f_BCCH*2-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1), Wherein, RB_BCCH*2No. RB is indicated corresponding to the second harmonic of BCCH, f_BCCH*2Indicate the second harmonic of BCCH, f_LTE-CENTERTable Show the frequency of the center frequency point of the channel of the base station TD-LTE configuration, BW indicates channel width, and ROUND is indicated to the number being calculated Value carries out rounding calculating；Be calculated No. RB is matched with No. RB in pulse RB set, if including in pulse RB set Have No. RB be calculated, then corresponding to the second harmonic of BCCH No. RB belong to pulse RB set.

Optionally, the second analysis submodule includes: the second computing unit, the frequency of the TCH for calculating the configuration of the station GSM900 Rate, the calculation formula of the frequency of TCH are as follows: f_TCHi=935+0.2k or f_TCHi=935+0.2 (m-1024), wherein f_TCHiIndicate the The frequency of i TCH, i indicate that the integer greater than 0, k and m indicate that the frequency point number of TCH, the value range of k are 1≤k≤124, m Value range be 975≤m≤1023；According to f_TCHi, No. RB is calculated corresponding to the second harmonic of TCH, wherein the two of TCH No. RB calculation formula corresponding to subharmonic are as follows: RB_TCHi*2=ROUND (((f_TCHi*2-f_LTE-CENTER+BW*(0.5-0.05)- 0.18/2)/0.18)+1), wherein RB_TCHi*2No. RB is indicated corresponding to the second harmonic of i-th of TCH, f_TCHi*2It indicates i-th The frequency of the second harmonic of TCH；Calculate the frequency of the second order inter-modulation frequency point of BCCH and TCH, the second order inter-modulation frequency point of BCCH and TCH Frequency calculation formula are as follows: f_BCCH+TCHi=f_BCCH+f_TCHi, wherein f_BCCH+TCHiIndicate the second order inter-modulation of BCCH and i-th of TCH The frequency of frequency point；According to f_BCCH+TCHi, calculate BCCH and TCH second order inter-modulation frequency point corresponding to No. RB, the two of BCCH and TCH No. RB calculation formula corresponding to rank intermodulation frequency point are as follows: RB_BCCH+TCHi=ROUND (((f_BCCH+TCHi-f_LTE-CENTER+BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_BCCH+TCHiIndicate that the second order inter-modulation frequency point institute of BCCH and i-th of TCH are right No. RB answered；It calculates separately and falls into No. RB corresponding to the second harmonic of the TCH of F-band number N₁, fall into the BCCH of F-band No. RB number N corresponding to second order inter-modulation frequency point with TCH₂No. RB corresponding to second harmonic with the TCH for falling into F-band Number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB the sum of number N₃；By N₁、N₂And N₃ Numerical value respectively with No. RB number N in pulse RB set₀Compare, if N₁With N₀Ratio, N₂With N₀Ratio, N₃With N₀Ratio Value is greater than a default value, the then BCCH for falling into No. RB number corresponding to the second harmonic of the TCH of F-band, falling into F-band No. RB corresponding to the second harmonic of No. RB number, the TCH for falling into F-band corresponding to second order inter-modulation frequency point with TCH Number and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB the sum of number be greater than pulse RB and gather No. RB number of middle preset ratio.

Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist In protection scope of the present invention.

Claims (16)

1. a kind of detection method of GSM900 second harmonic interference, the base station TD-LTE applied to F-band, which is characterized in that institute Stating detection method includes:

Obtain the detection signal of the base station TD-LTE and the station GSM900 colocation site；

The base station TD-LTE is detected in busy periods, average interference power suffered by the RB in disturbed resource block RB set Waveform whether there is at least one impulse waveform, wherein record No. RB for having each RB to be configured in disturbed RB set；

At least one impulse waveform if it exists is configured the RB that average interference power is at impulse waveform in disturbed RB set No. RB be recorded as pulse RB set, second harmonic and second order inter-modulation frequency point to GSM900 whether fall into F-band, fall into F frequency No. RB second harmonic for whether belonging to pulse RB set, falling into F-band corresponding to the second harmonic and second order inter-modulation frequency point of section With RB corresponding to second order inter-modulation frequency point in the average interference power situation of busy periods and idle section, successively analyzed, comprising: The second harmonic of the BCCH channel of broadcast control of GSM900 is analyzed, the first analysis result is obtained；To the business of GSM900 The second harmonic and BCCH of channel TCH and the second order inter-modulation frequency point of TCH are analyzed, and the second analysis result is obtained；Respectively to falling Enter RB corresponding to the second order inter-modulation frequency point of the second harmonic of the BCCH of F-band, the second harmonic of TCH and BCCH and TCH busy The average interference power situation of period and idle section is analyzed, and third analysis result is obtained；

The probability that the base station TD-LTE is interfered by GSM900 second harmonic is determined based on the analysis results, comprising: according to default Weight is respectively weighted the first analysis result, the second analysis result and third analysis result, and to the after weighting One analysis result, the second analysis result and third analysis result are summed, and are obtained the sum value, and described and value is the TD-LTE The probability value that base station is interfered by GSM900 second harmonic；

At least one impulse waveform if it does not exist determines the base station TD-LTE not by the interference of GSM900 second harmonic.

2. detection method according to claim 1, which is characterized in that described to detect the base station TD-LTE in busy periods When, the waveform of average interference power suffered by the RB in disturbed resource block RB set with the presence or absence of at least one impulse waveform it Before, the detection method further include: determine the busy periods and idle section that the base station TD-LTE is interfered.

3. detection method according to claim 2, which is characterized in that the determination base station TD-LTE was interfered The specific steps of busy periods and idle section are as follows:

It determines the disturbed RB set of the base station TD-LTE, and detects suffered by each RB in different time sections in disturbed RB set The jamming power arrived obtains the average interference power testing result of disturbed RB set in different time periods；

It is according to the average interference power testing result of the disturbed RB set in different time periods, average interference power is maximum Period is determined as the busy periods that the base station TD-LTE is interfered, and the average interference power the smallest period is determined as institute State the idle section that the base station TD-LTE is interfered.

4. detection method according to claim 1, which is characterized in that the BCCH channel of broadcast control to GSM900 Second harmonic is analyzed, and the specific steps of the first analysis result are obtained are as follows:

Whether the second harmonic for detecting the BCCH of GSM900 falls into F-band, and detects the second harmonic institute for falling into the BCCH of F-band Whether corresponding No. RB belong to the pulse RB set, obtains the first analysis result；When the second harmonic for detecting BCCH falls into F Frequency range, and drop into F-band BCCH second harmonic corresponding to No. RB belong to the pulse RB set when, described first point The numerical value for analysing result is 1；F-band is fallen into when the second harmonic for detecting the BCCH does not fall under F-band or detects Corresponding to the second harmonic of BCCH No. RB be not belonging to the pulse RB set when, it is described first analysis result numerical value be 0.

5. detection method according to claim 4, which is characterized in that the Traffic Channel TCH's to GSM900 is secondary Harmonic wave and the second order inter-modulation frequency point of BCCH and TCH are analyzed, and the specific steps of the second analysis result are obtained are as follows:

Whether the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH for detecting GSM900 fall into F-band, and judge to fall Enter the second order inter-modulation frequency point institute of No. RB number corresponding to the second harmonic of the TCH of F-band, the BCCH and TCH that fall into F-band Corresponding No. RB number, the TCH for falling into F-band second harmonic corresponding to No. RB number and fall into the BCCH of F-band Whether the sum of No. RB number corresponding to the second order inter-modulation frequency point with TCH is greater than No. RB of preset ratio in pulse RB set Number obtains the second analysis result；

When any one in the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH falls into F-band and falls into No. RB number corresponding to the second harmonic or BCCH of the TCH of F-band and the second order inter-modulation frequency point of TCH is greater than the pulse RB The number of the RB of preset ratio in set, or detect that the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH are each fallen within F-band, and drop into No. RB corresponding to the second harmonic of the TCH of F-band and the second order inter-modulation frequency point of BCCH and TCH number The sum of be greater than the RB pulse collection in preset ratio No. RB number when, it is described second analysis result numerical value be 1；

When the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH does not fall within F-band, or detect TCH Second harmonic and BCCH and TCH second order inter-modulation frequency point in any one drop into F-band and drop into the TCH of F-band Second harmonic or BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number it is pre- no more than in pulse RB set If No. RB number of ratio, or detect in the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH and each fall within F Frequency range and fall into No. RB corresponding to the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH of F-band the sum of number No more than when No. RB number of preset ratio, the numerical value of the second analysis result is 0 in pulse RB set.

6. detection method according to claim 1, which is characterized in that described respectively to the secondary of the BCCH for falling into F-band RB corresponding to the second order inter-modulation frequency point of harmonic wave, the second harmonic of TCH and BCCH and TCH is done in busy periods and the average of idle section It disturbs power situation to be analyzed, obtains the specific steps of third analysis result are as follows:

Calculate separately the second harmonic of the second harmonic, TCH that fall into the BCCH of F-band and the second order inter-modulation frequency point of BCCH and TCH Corresponding No. RB, and detect the average interference that RB corresponding to No. RB be calculated is subject in the busy periods and idle section Power determines the minimum value for the average interference power that the busy periods and idle section are subject to, and judge that busy periods are subject to is average dry It disturbs the minimum value of power and whether the difference of the minimum value of average interference power that idle section is subject to is greater than a preset threshold, obtain Third analyzes result；

When the difference is not less than a preset threshold, the numerical value of the third analysis result is 1；When the difference is pre- less than one If when threshold value, the numerical value of the third analysis result is 0.

7. detection method according to claim 5, which is characterized in that described to detect the secondary humorous of the BCCH for falling into F-band No. RB specific steps for whether belonging to the pulse RB set corresponding to wave are as follows:

Calculate the frequency of the BCCH of the station GSM900 configuration, the calculation formula of the frequency of the BCCH are as follows: f_BCCH=935+0.2k Or f_BCCH=935+0.2 (m-1024), wherein f_BCCHIndicate the frequency of BCCH, k and m indicate the frequency point number of BCCH, the value of k Range is 1≤k≤124, and the value range of m is 975≤m≤1023；

According to f_BCCH, No. RB is calculated corresponding to the second harmonic of BCCH, wherein RB corresponding to the second harmonic of the BCCH Number calculation formula are as follows: RB_BCCH*2=ROUND (((f_BCCH*2- fLTE-CENTER+BW*0.5-0.05-0.18/2/0.18+1, In, RBBCCH*2 indicates corresponding to the second harmonic of BCCH No. RB, f_BCCH*2Indicate the second harmonic of BCCH, f_LTE-CENTERTable Show the frequency of the center frequency point of the channel of the base station TD-LTE configuration, BW indicates channel width, and ROUND is indicated to the number being calculated Value carries out rounding calculating；

No. RB matches with No. RB in pulse RB set corresponding to second harmonic by BCCH, if the pulse RB collection Include in conjunction No. RB corresponding to the second harmonic of BCCH, then corresponding to the second harmonic of the BCCH No. RB belong to it is described Pulse RB set.

8. detection method according to claim 7, which is characterized in that the second harmonic of the TCH for judging to fall into F-band No. RB number corresponding to the second order inter-modulation frequency point of corresponding No. RB number, the BCCH and TCH that fall into F-band falls into F No. RB number corresponding to the second harmonic of the TCH of frequency range and fall into F-band BCCH and TCH second order inter-modulation frequency point institute it is right Whether the sum of No. RB number answered is greater than the specific steps of No. RB number of preset ratio in pulse RB set are as follows:

Calculate the frequency of the TCH of the station GSM900 configuration, the calculation formula of the frequency of the TCH are as follows: f_TCHi=935+0.2k or f_TCHi=935+0.2 (m-1024), wherein f_TCHiIndicate the frequency of i-th of TCH, i indicates to be greater than 0 integer, and k and m are indicated The frequency point number of TCH, the value range of k are 1≤k≤124, and the value range of m is 975≤m≤1023；

According to f_TCHi, No. RB is calculated corresponding to the second harmonic of TCH, wherein No. RB corresponding to the second harmonic of the TCH Calculation formula are as follows: RB_TCHi*2=ROUND (((f_TCHi*2- fLTE-CENTER+BW*0.5-0.05-0.18/2/0.18+1, In, RBTCHi*2 indicates corresponding to the second harmonic of i-th of TCH No. RB, f_TCHi*2Indicate the frequency of the second harmonic of i-th of TCH Rate；

Calculate the frequency of the second order inter-modulation frequency point of the BCCH and TCH, the frequency of the second order inter-modulation frequency point of the BCCH and TCH Calculation formula are as follows: f_BCCH+TCHi=f_BCCH+f_TCHi, wherein f_BCCH+TCHiIndicate the frequency of the second order inter-modulation frequency point of BCCH and i-th of TCH Rate；

According to f_BCCH+TCHi, No. RB is calculated corresponding to the second order inter-modulation frequency point of BCCH and TCH, and the second order of the BCCH and TCH are mutual No. RB calculation formula corresponding to frequency modulation point are as follows: RB_BCCH+TCHi=ROUND (((f_BCCH+TCHi-f_LTE-CENTER+BW*(0.5- 0.05) -0.18/2)/0.18)+1), wherein RB_BCCH+TCHiCorresponding to the second order inter-modulation frequency point for indicating BCCH and i-th of TCH No. RB；

It calculates separately and falls into No. RB corresponding to the second harmonic of the TCH of F-band number N₁, fall into the BCCH and TCH of F-band Second order inter-modulation frequency point corresponding to No. RB number N₂No. RB corresponding to second harmonic with the TCH for falling into F-band Count and fall into the sum of No. RB number N corresponding to the second order inter-modulation frequency point of the BCCH and TCH of F-band₃；

By N₁、N₂And N₃Numerical value respectively with No. RB number N in pulse RB set₀Compare, if N₁With N₀Ratio, N₂With N₀Ratio, N₃With N₀Ratio be greater than a default value, then fall into corresponding to the second harmonic of the TCH of F-band No. RB Number, fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number, fall into F-band TCH it is secondary No. RB number corresponding to harmonic wave and fall into F-band BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number The sum of be greater than the pulse RB set in preset ratio No. RB number.

9. a kind of detection device of GSM900 second harmonic interference, the base station TD-LTE applied to F-band, which is characterized in that institute Stating detection device includes:

Module is obtained, for obtaining the detection signal of the base station TD-LTE and the station GSM900 colocation site；

Judgment module, for detecting the base station TD-LTE in busy periods, suffered by the RB in disturbed resource block RB set The waveform of average interference power whether there is at least one impulse waveform, wherein record has each RB to be matched in disturbed RB set No. RB set；

Average interference power in disturbed RB set is in impulse wave at least one impulse waveform if it exists by analysis module Configured No. RB of RB at shape is recorded as pulse RB set, and whether second harmonic and second order inter-modulation frequency point to GSM900 fall into Whether No. RB belong to pulse RB set, fall into F frequency corresponding to F-band, the second harmonic for falling into F-band and second order inter-modulation frequency point Section second harmonic and second order inter-modulation frequency point corresponding to RB busy periods and idle section average interference power situation, successively into Row analysis, determines the probability that the base station TD-LTE is interfered by GSM900 second harmonic based on the analysis results；If it does not exist extremely A few impulse waveform, determines the base station TD-LTE not by the interference of GSM900 second harmonic；

Analysis module includes:

First analysis submodule, the second harmonic for the BCCH channel of broadcast control to GSM900 are analyzed, and obtain first Analyze result；

Second analysis submodule, for the second harmonic of the Traffic Channel TCH to GSM900 and the second order inter-modulation frequency of BCCH and TCH Point is analyzed, and the second analysis result is obtained；

Third analyze submodule, for second harmonic, TCH respectively to the BCCH for falling into F-band second harmonic and BCCH with RB corresponding to the second order inter-modulation frequency point of TCH is analyzed in the average interference power situation of busy periods and idle section, obtains Three analysis results；

The analysis module is further used for, according to preset weights, respectively to it is described first analysis result, second analysis result and Third analysis result is weighted, and is carried out to the first analysis result, the second analysis result and the third analysis result after weighting Summation, obtains the sum value, and described and value is the probability value that the base station TD-LTE is interfered by GSM900 second harmonic.

10. detection device according to claim 9, which is characterized in that the detection device further include: detection module is used In the busy periods and idle section that determine that the base station TD-LTE is interfered.

11. detection device according to claim 10, which is characterized in that the detection module is further used for, and determines institute The disturbed RB set of the base station TD-LTE is stated, and detects interference function suffered by each RB in different time sections in disturbed RB set Rate obtains the average interference power testing result of disturbed RB set in different time periods；According to described in different time periods disturbed RB set average interference power testing result, by the average interference power maximum period be determined as the base station TD-LTE by To the busy periods of interference, the average interference power the smallest period is determined as the idle that the base station TD-LTE is interfered Section.

12. detection device according to claim 9, which is characterized in that the first analysis submodule is further used for, and examines Whether the second harmonic for surveying the BCCH of GSM900 falls into F-band, and detects corresponding to the second harmonic for the BCCH for falling into F-band Whether No. RB belong to the pulse RB set, obtains the first analysis result；When the second harmonic for detecting BCCH falls into F-band, And drop into F-band BCCH second harmonic corresponding to No. RB belong to the pulse RB set when, it is described first analysis knot The numerical value of fruit is 1；When the second harmonic for detecting the BCCH does not fall under the BCCH that F-band or detect falls into F-band Second harmonic corresponding to No. RB be not belonging to the pulse RB set when, it is described first analysis result numerical value be 0.

13. detection device according to claim 12, which is characterized in that the second analysis submodule is further used for, Whether the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH for detecting GSM900 fall into F-band, and judge to fall into F frequency No. RB number corresponding to the second harmonic of the TCH of section, corresponding to the second order inter-modulation frequency point of the BCCH and TCH that fall into F-band No. RB number, the TCH for falling into F-band second harmonic corresponding to No. RB number and fall into the BCCH and TCH of F-band Second order inter-modulation frequency point corresponding to No. RB the sum of number whether be greater than No. RB of preset ratio in pulse RB set Number obtains the second analysis result；When any in the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH One falls into F-band and falls into corresponding to the second harmonic of the TCH of F-band or the second order inter-modulation frequency point of BCCH and TCH No. RB Number be greater than the number of the RB of preset ratio in pulse RB set, or detect the second harmonic and BCCH and TCH of TCH Second order inter-modulation frequency point each fall within F-band, and drop into the TCH of F-band second harmonic and BCCH and TCH second order inter-modulation frequency When the sum of No. RB corresponding number of point is greater than No. RB number of preset ratio in the RB pulse collection, described second point The numerical value for analysing result is 1；When the second order inter-modulation frequency point of the second harmonic and BCCH and TCH that detect TCH does not fall within F frequency Section, or detect in the second harmonic of TCH and the second order inter-modulation frequency point of BCCH and TCH any one drop into F-band and fall Enter to the TCH of F-band second harmonic or BCCH and TCH second order inter-modulation frequency point corresponding to No. RB number no more than described No. RB number of preset ratio in pulse RB set, or detect the second harmonic of TCH and the second order inter-modulation frequency of BCCH and TCH F-band is each fallen in point and is fallen into corresponding to the second harmonic of the TCH of F-band and the second order inter-modulation frequency point of BCCH and TCH The sum of No. RB number is no more than when No. RB number of preset ratio, described second analyzes result in pulse RB set Numerical value is 0.

14. detection device according to claim 9, which is characterized in that the third analysis submodule is further used for, point Corresponding to the second order inter-modulation frequency point that the second harmonic of BCCH of F-band, the second harmonic of TCH and BCCH and TCH Ji Suan not fallen into No. RB, and the average interference function that RB corresponding to detecting be calculated described No. RB is subject in the busy periods and idle section Rate determines the minimum value for the average interference power that the busy periods and idle section are subject to, and judges the average interference that busy periods are subject to Whether the difference of the minimum value for the average interference power that the minimum value of power and idle section are subject to is greater than a preset threshold, obtains the Three analysis results；When the difference is not less than a preset threshold, the numerical value of the third analysis result is 1；When the difference When less than a preset threshold, the numerical value of the third analysis result is 0.

15. detection device according to claim 13, which is characterized in that the first analysis submodule includes: the first meter Unit is calculated, the frequency of the BCCH for calculating the station GSM900 configuration, the calculation formula of the frequency of the BCCH are as follows: f_BCCH= 935+0.2k or f_BCCH=935+0.2 (m-1024), wherein f_BCCHIndicate the frequency of BCCH, k and m indicate the frequency point of BCCH Number, the value range of k is 1≤k≤124, and the value range of m is 975≤m≤1023；According to f_BCCH, calculate the secondary humorous of BCCH No. RB corresponding to wave, wherein No. RB calculation formula corresponding to the second harmonic of the BCCH are as follows: RB_BCCH*2=ROUND (((f_BCCH*2-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_BCCH*2Indicate that BCCH's is secondary humorous No. RB corresponding to wave, f_BCCH*2Indicate the second harmonic of BCCH, f_LTE-CENTERIndicate the center of the channel of the base station TD-LTE configuration The frequency of frequency point, BW indicate channel width, and ROUND expression carries out rounding calculating to the numerical value being calculated；By what is be calculated No. RB matches with No. RB in pulse RB set, described if including No. RB be calculated in pulse RB set No. RB belongs to the pulse RB set corresponding to the second harmonic of BCCH.

16. detection device according to claim 15, which is characterized in that the second analysis submodule includes: the second meter Unit is calculated, the frequency of the TCH for calculating the station GSM900 configuration, the calculation formula of the frequency of the TCH are as follows: f_TCHi= 935+0.2k or f_TCHi=935+0.2 (m-1024), wherein f_TCHiIndicate the frequency of i-th of TCH, i indicates to be greater than 0 integer, k Indicate that the frequency point number of TCH, the value range of k are 1≤k≤124 with m, the value range of m is 975≤m≤1023；According to f_TCHi, No. RB is calculated corresponding to the second harmonic of TCH, wherein No. RB calculating corresponding to the second harmonic of the TCH is public Formula are as follows: RB_TCHi*2=ROUND (((f_TCHi*2-f_LTE-CENTER+ BW* (0.5-0.05) -0.18/2)/0.18)+1), wherein RB_TCHi*2No. RB is indicated corresponding to the second harmonic of i-th of TCH, f_TCHi*2Indicate the frequency of the second harmonic of i-th of TCH；Meter Calculate the frequency of the second order inter-modulation frequency point of the BCCH and TCH, the calculating of the frequency of the second order inter-modulation frequency point of the BCCH and TCH is public Formula are as follows: f_BCCH+TCHi=f_BCCH+f_TCHi, wherein f_BCCH+TCHiIndicate the frequency of the second order inter-modulation frequency point of BCCH and i-th of TCH；Root According to f_BCCH+TCHi, No. RB is calculated corresponding to the second order inter-modulation frequency point of BCCH and TCH, the second order inter-modulation frequency point of the BCCH and TCH No. RB corresponding calculation formula are as follows: RB_BCCH+TCHi=ROUND (((f_BCCH+TCHi-f_LTE-CENTER+BW*(0.5-0.05)- 0.18/2)/0.18)+1), wherein RB_BCCH+TCHiNo. RB is indicated corresponding to the second order inter-modulation frequency point of BCCH and i-th of TCH；Point No. RB corresponding to the second harmonic of the TCH of F-band number N Ji Suan not fallen into₁, fall into F-band BCCH and TCH second order No. RB number N corresponding to intermodulation frequency point₂It No. RB number corresponding to second harmonic with the TCH for falling into F-band and falls Enter the sum of No. RB number N corresponding to the second order inter-modulation frequency point of the BCCH and TCH of F-band₃；By N₁、N₂And N₃Numerical value difference With No. RB in pulse RB set number N₀Compare, if N₁With N₀Ratio, N₂With N₀Ratio, N₃With N₀Ratio be greater than One default value, the then BCCH and TCH for falling into No. RB number corresponding to the second harmonic of the TCH of F-band, falling into F-band Second order inter-modulation frequency point corresponding to No. RB number, No. RB number corresponding to the second harmonic for the TCH for falling into F-band and The sum of No. RB number corresponding to the second order inter-modulation frequency point of the BCCH and TCH of F-band is fallen into greater than in pulse RB set No. RB number of preset ratio.