CN103701744B - A kind of interference detection method and device - Google Patents

Abstract

The embodiment of the present invention provides a kind of interference detection method and device, the transmission to report the interference detected in time, between coordination base station to subscriber equipment.Described method includes: the interferometry cycle carries out result and the subframe index of interferometry of modulus according to radio frames enumerator, determines the subframe in the radio frames of pending interferometry and radio frames；Ask for the average energy of subcarrier at least one Resource Block；Described average energy is compared with the noise energy threshold value preset, if described average energy is more than described default noise energy threshold value, then the instruction that the subframe of described pending interferometry is interfered is reported.The interference detection method that the embodiment of the present invention provides can select to measure duration, Measurement bandwidth, measurement cycle and reporting schemes flexibly, the transmission between base station and subscriber equipment is coordinated according to interference instruction, to avoid the downstream signal of remote base station that the upward signal of this community is disturbed by base station controller.

Description

A kind of interference detection method and device

Technical field

The present invention relates to wireless communication field, particularly relate to a kind of interference detection method and device.

Background technology

The frame of one time division multiple acess access system is made up of multiple radio frames, and each radio frames comprises again multiple subframe, as Shown in accompanying drawing 1-a.In the frame structure shown in accompanying drawing 1-a, subframe 0 (Subframe#0) is descending sub frame, subframe 2 (Subframe#2) it is sub-frame of uplink, in addition to subframe 0, subframe 2 and subframe 1 (Subframe#1), the up-downgoing of remaining subframe Depending on can be according to configuration.Subframe 1 belongs to special subframe, has the function of ascending-descending subframes concurrently, and it both includes transmitting downstream Quadrature frequency Divide the descending pilot frequency time slot of multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol (Downlink Pilot Time Slot, DwPTS), includes again the uplink pilot time slot (Uplink transmitting upgoing O FDM symbol Pilot Time Slot, UpPTS), it is protection interval (Guard Period, GP) between DwPTS and UpPTS.

If the DwPTS propagation delay time of certain base station is little, other base stations will not be done when receiving the UpPTS of this community Disturb.But, for the base station group of large-scale network-estabilishing, some base station transmissions is distant, launches power the biggest, these base stations DwPTS signal, it is possible to the UpPTS of other base stations even after sub-frame of uplink interfere, it is impossible to be properly received Row signal.

As shown in accompanying drawing 1-b, base station (evolution NodeB, eNB) 1 distance users equipment (User Equipment, UE) 1 is relatively near, is that UE1 accepts the service of eNB1 in the community that base station 1 (eNB1) covers；Base station 2 (eNB2) be distance UE1 farther out Base station.Owing to the signal propagation distance of eNB2 is remote, it is big to launch power, therefore, it is right that the DwPTS signal that eNB2 sends is possible to The UpPTS signal that UE1 sends to eNB1 produces interference, will appear as DwPTS and UpPTS the most overlapping in time domain.

But, how to detect the interference of above-mentioned accompanying drawing 1-b example, and then the instruction being interfered is reported base station control Device processed, it is open that prior art there is no corresponding scheme.

Summary of the invention

The embodiment of the present invention provides a kind of interference detection method and device, to report the interference detected in time, coordinates base The transmission stood between subscriber equipment.

The embodiment of the present invention provides a kind of interference detection method, and described method includes: according to radio frames enumerator to interference The measurement cycle carries out the result of modulus and the subframe index of interferometry, determines radio frames and the radio frames of pending interferometry Interior subframe, the subframe of described pending interferometry comprises at least one Resource Block；Ask at least one Resource Block described The average energy of subcarrier；Described average energy is compared, if described average energy is more than with the noise energy threshold value preset Described default noise energy threshold value, then report the instruction that the subframe of described pending interferometry is interfered.

Alternatively, the subframe of described pending interferometry comprises continuous resource block, described according to radio frames enumerator pair The interferometry cycle carries out the result of modulus and the subframe index of measurement, determines the radio frames of pending interferometry and described nothing Subframe in line frame includes: if the result that described radio frames enumerator carries out modulus to the interferometry cycle is i and described interference Measure subframe index be 0, it is determined that the subframe of pending interferometry is subframe 1 and subframe 2, described i be 0 to less than interference The arbitrary integer in measurement cycle；Described ask for the average energy of subcarrier at least one Resource Block described and include: ask for described The average energy of subcarrier on tested continuous resource block in subframe 1 and subframe 2.

Alternatively, the average energy of subcarrier on tested continuous resource block is asked in described subframe 1 and/or subframe 2 described in Including:

According to formulaCalculate subframe 1 Uplink pilot time slot included in average energy P of subcarrier on Resource Block₁；

According to formula

Calculate nothing Average energy P of subcarrier on one section of tested continuous resource block in line subframe 2₂；Ask for P₁And P₂Meansigma methods (P₁+P₂)/2, with Described (P₁+P₂)/2 are as the average energy of subcarrier on continuous resource block tested in described subframe 1 and subframe 2；Described Nsmb_ UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, described DwInterfRBStart represents the initial index of tested Resource Block, and described DwInterfRBNum represents described subframe 1 or subframe 2 In the number of tested continuous resource block, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises continuous resource block, described according to radio frames enumerator pair The interferometry cycle carries out the result of modulus and the subframe index of measurement, determines the radio frames of pending interferometry and described nothing Subframe in line frame includes: if the result that described radio frames enumerator carries out modulus to the interferometry cycle is i and described interference Measure subframe index j, it is determined that the subframe of pending interferometry be subframe number be j, described i be 0 to less than interference survey The arbitrary integer in amount cycle, described j is not equal to 0；

Described ask for the average energy of subcarrier at least one Resource Block described and include: according to formulaCalculate in described subframe j one section Average energy P of subcarrier on continuous tested Resource Block_j, described DwInterfDetectionNSymb represents in described interference survey The OFDM symbol number of the measurement of subframe j under the subframe index configuration of amount, described DwInterfRBStart represents interferometry The initial index of Resource Block, described DwInterfRBNum represents the number of tested continuous resource block in described subframe j, described Nsc table Showing the subcarrier number comprised on each Resource Block, described d represents and receives in signal the l OFDM symbol, kth subcarrier Frequency domain value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discrete Resource Block, described according to radio frames counting Device carries out result and the subframe index of measurement of modulus to the interferometry cycle, determines radio frames and the institute of pending interferometry The subframe stated in radio frames includes: if it is i and described that described radio frames enumerator carries out the result of modulus to the interferometry cycle The subframe index of interferometry is 0, it is determined that the subframe of pending interferometry is subframe 1 and subframe 2, and described i is 0 to being less than The arbitrary integer in interferometry cycle；Described ask for the average energy of subcarrier at least one Resource Block described and include: ask for The average energy of subcarrier on tested discontinuous Resource Block in described subframe 1 and subframe 2.

Alternatively, the average energy bag of subcarrier on tested discontinuous Resource Block is asked in described subframe 1 and subframe 2 described in Include:

According to formulaCalculate the uplink pilot time slot of subframe 1 In average energy P of subcarrier on each Resource Block₁(rb)；

According to formula

Calculate in subframe 2 Average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block₂(rb)；

Ask for P₁And P (rb)₂(rb) meansigma methods (P of identical rb index₁(rb)+P₂(rb))/2, with described (P₁(rb)+ P₂(rb))/2 as the average energy of subcarrier on discontinuous Resource Block tested in described subframe 1 and subframe 2；Described Nsmb_ UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, and described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is in described subframe 1 or subframe 2 Tested discontinuous Resource Block concordance list, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discontinuous Resource Block, described according to radio frames enumerator The interferometry cycle is carried out result and the subframe index of measurement of modulus, determines the radio frames of pending interferometry and described Subframe in radio frames includes: if it is i and described dry that described radio frames enumerator carries out the result of modulus to the interferometry cycle Disturb subframe index j of measurement, it is determined that the subframe of pending interferometry be subframe number be the subframe of j, described i is 0 to little In the arbitrary integer in interferometry cycle, described j is not equal to 0；

Described ask for the average energy of subcarrier at least one Resource Block described and include:

According to formula

Calculate in described subframe j one section discontinuous

Average energy P of subcarrier on tested Resource Block_j(rb), described DwInterfDetectionNSymb represents in institute Stating the OFDM symbol number of measurement of subframe j under the subframe index configuration of interferometry, described rb represents DwInterfRBIdxTb The Resource Block RB index value of middle correspondence, described DwInterfRBIdxTb is tested discontinuous Resource Block index in described subframe j Table, described Nsc represents the subcarrier number comprised on each Resource Block, described d represent the l OFDM symbol in reception signal, The frequency domain value of kth subcarrier, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

The embodiment of the present invention provides a kind of interference detecting apparatus, and described device comprises determining that module, for according to radio frames Enumerator carries out result and the subframe index of interferometry of modulus to the interferometry cycle, determines the nothing of pending interferometry Subframe in line frame and described radio frames, the subframe of described pending interferometry comprises at least one Resource Block；Ask for module, For asking for the average energy of subcarrier at least one Resource Block described；Processing module, is used for described average energy with pre- If noise energy threshold value compare, if described average energy more than described default noise energy threshold value, is then treated described Carry out the instruction that the subframe of interferometry is interfered to report.

Alternatively, the subframe of described pending interferometry comprises continuous resource block, described determines that module includes that first is true Stator modules, if described first determines that the result that submodule carries out modulus for described frame counter to the interferometry cycle is i And the subframe index of described interferometry is 0, it is determined that the subframe of pending interferometry is subframe 1 and subframe 2, and described i is 0 To the arbitrary integer less than the interferometry cycle；Described module of asking for includes that first asks for submodule, and described first asks for submodule Block is for asking in described subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource block.

Alternatively, described first asks for submodule includes: the first computing unit, for according to formula

Calculate the up of subframe 1 to lead Frequently average energy P of subcarrier on Resource Block included in time slot₁；Second computing unit, for according to formulaCalculate son Average energy P of subcarrier on one section of tested continuous resource block in frame 2₂；First average calculation unit, is used for asking for P₁And P₂'s Meansigma methods (P₁+P₂)/2, with described (P₁+P₂)/2 are as subcarrier on continuous resource block tested in described subframe 1 and subframe 2 Average energy；Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbol included in the uplink pilot time slot of subframe 1 Number, described DwInterfRBStart represents the initial index of tested Resource Block, and described DwInterfRBNum represents described subframe 1 Or the number of tested continuous resource block in subframe 2, described Ns represents the subcarrier number comprised on each Resource Block, described DwInterfDetect represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, and described d represents Receiving the l OFDM symbol, the frequency domain value of kth subcarrier in signal, described l represents that the notation index of d, described k represent d's Sub-carrier indices.

Alternatively, the subframe of described pending interferometry comprises continuous resource block, described determines that module includes second Determine submodule, if described second determines that submodule carries out modulus for described radio frames enumerator to the interferometry cycle Result be i and subframe index j of described interferometry, it is determined that the subframe of pending interferometry be subframe compile Number being the subframe of j, described i is 0 to the arbitrary integer less than the interferometry cycle, and described j is not equal to 0；Described ask Delivery block includes that second asks for submodule, and described second asks for submodule for according to formulaCalculate one section of company in described subframe j Average energy P of subcarrier on continuous tested Resource Block_j, described DwInterfDetectionNSymb represents at described interferometry Subframe index configuration under the OFDM symbol number of measurement of subframe j, describedRepresent tested Resource Block Initial index, described DwInterfRBNum represents the number of tested continuous resource block in described subframe j, and described Nsc represents each The subcarrier number comprised on Resource Block, described d represents the l OFDM symbol, the frequency domain of kth subcarrier in reception signal Value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discrete Resource Block, described determines that module includes Three determine submodule, if the described 3rd determines that submodule carries out modulus for described radio frames enumerator to the interferometry cycle Result be the subframe index of i and described interferometry be 0, it is determined that the subframe of pending interferometry is subframe 1 and subframe 2, Described i is 0 to less than the arbitrary integer in interferometry cycle；Described module of asking for includes that the 3rd asks for submodule, the described 3rd Ask for submodule for asking in described subframe 1 and subframe 2 average energy of subcarrier on tested discontinuous Resource Block.

Alternatively, the described 3rd asks for submodule includes: the 3rd computing unit, for according to formulaCalculate in the uplink pilot time slot of subframe 1 sub on each Resource Block Average energy P of carrier wave₁(rb)；4th computing unit, for according to formula

$P_2\left(rb\right)=\frac{\underset{l=0}{\overset{DwInterfDetectionNSymb-Nsymb\_UpPTS-1}{\mathrm{\Σ}}}\underset{k=rb*Nsc}{\overset{(rb+1)*Nsc-1}{\mathrm{\Σ}}}{\left|d(l,k)\right|}^2}{(DwInterfDetectionNSymb-Nsymb\_UpPTS)*Nsc}$

Average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2₂ (rb)；Second average calculation unit, is used for asking for P₁And P (rb)₂(rb) meansigma methods (P₁(rb)+P₂(rb))/2, with described (P₁ (rb)+P₂(rb))/2 as the average energy of subcarrier on discontinuous Resource Block tested in described subframe 1 and subframe 2；Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, and described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is in described subframe 1 or subframe 2 Tested discontinuous Resource Block concordance list, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discontinuous Resource Block, described determines that module includes Four determine submodule, if the described 4th determines that the interferometry cycle is carried out by submodule for described radio frames enumerator The result of modulus is i and subframe index j of described interferometry, it is determined that the subframe of pending interferometry is subframe The subframe of numbered j, described i is 0 to less than the arbitrary integer in interferometry cycle, and described j is not equal to 0；Described Asking for module and include that the 4th asks for submodule, the described 4th asks for submodule for according to formulaCalculate one section of discontinuous tested survey in described subframe j to provide Average energy P of subcarrier on the block of source_j(rb), described DwInterfDetectionNSymb represents the son at described interferometry The OFDM symbol number of the measurement of subframe j under frame index configuration, described rb represents Resource Block RB corresponding in DwInterfRBId Index value, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, and described Nsc represents each The subcarrier number comprised on Resource Block, described d represents the l OFDM symbol, the frequency domain of kth subcarrier in reception signal Value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

Knowable to the invention described above embodiment, owing to the subframe of pending interferometry is to survey interference according to frame counter The subframe index of result and interferometry that the amount cycle carries out modulus determines, than and ask for subcarrier at least one Resource Block Average energy after, by its with preset noise energy threshold value compare, if average energy more than preset noise energy thresholding Value, then report the instruction that the subframe of pending interferometry is interfered.Therefore, the Interference Detection that the embodiment of the present invention provides Method can select to measure duration, Measurement bandwidth, measurement cycle and reporting schemes flexibly, base station controller refer to according to interference Show the transmission coordinated between base station and subscriber equipment, to avoid the downstream signal of remote base station that the upward signal of this community is done Disturb.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, in prior art or embodiment being described below The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some realities of the present invention Execute example, for those skilled in the art, it is also possible to as these accompanying drawings obtain other accompanying drawing.

Fig. 1-a is the frame structure schematic diagram of time division multiple acess access system；

Fig. 1-b is that remote base station downlink signal is to this cell uplink signal disturbing schematic diagram；

Fig. 2 is the interference detection method schematic flow sheet that the embodiment of the present invention provides；

Fig. 3-a is the continuous resource block schematic diagram that the embodiment of the present invention provides；

Fig. 3-b is the discontinuous Resource Block schematic diagram that the embodiment of the present invention provides；

Fig. 4 is the interference detecting apparatus structural representation that the embodiment of the present invention provides；

Fig. 5 is the interference detecting apparatus structural representation that another embodiment of the present invention provides；

Fig. 6 is the interference detecting apparatus structural representation that another embodiment of the present invention provides；

Fig. 7 is the interference detecting apparatus structural representation that another embodiment of the present invention provides；

Fig. 8 is the interference detecting apparatus structural representation that another embodiment of the present invention provides；

Fig. 9 is the interference detecting apparatus structural representation that another embodiment of the present invention provides；

Figure 10 is the interference detecting apparatus structural representation that another embodiment of the present invention provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, the every other embodiment that those skilled in the art are obtained, broadly fall into the scope of protection of the invention.

Refer to accompanying drawing 2, be the interference detection method schematic flow sheet of embodiment of the present invention offer.The side of accompanying drawing 2 example The executive agent of method can be the base station in mobile communication system, mainly includes step S201, step S202 and step S203:

S201, carries out the result of modulus and the subframe rope of interferometry according to radio frames enumerator to the interferometry cycle Draw, determine the subframe in the radio frames of pending interferometry and described radio frames, the subframe bag of described pending interferometry Containing at least one Resource Block.

In embodiments of the present invention, base station can generate the control parameter for measuring interference shown in table 1 below:

Table 1

The method that the embodiment of the present invention provides both can carry out interference inspection to continuous resource block (RB, Resource Block) Survey, it is also possible to discontinuous Resource Block is detected；The subframe of pending interferometry comprises at least one Resource Block, and it is permissible It is continuous resource block, it is also possible to be non-continuous resource block；At time-division-Long Term Evolution (Time Division-Long Term Evolution, TD-LTE) in system, RB is the minimum scheduling unit of system.As shown in accompanying drawing 3-a, it is continuous RB schematic diagram, It it is discontinuous RB schematic diagram shown in accompanying drawing 3-b.

Can according to radio frames enumerator (control parameter SFCount of the most above-mentioned table 1 example) to the interferometry cycle (i.e. Control parameter DwInterfDetectionPeriod of above-mentioned table 1 example) carry out the result of modulus and the subframe index of measurement, Determine the subframe in the radio frames of pending interferometry and described radio frames.The interferometry cycle is carried out by radio frames enumerator The result of modulus shows that current wireless frame is the radio frames needing to carry out interferometry.Such as, if radio frames enumerator is to interference It is i that the measurement cycle carries out the result of modulus, represents every DwInterfDetectionPeriod radio frames, and offsets i's Radio frames, needs to do interferometry, and wherein, i can be 0 to less than the arbitrary integer in interferometry cycle.Such as, according to above-mentioned nothing It is 1 that line frame counter carries out the result of modulus to the interferometry cycle, the radio frames of the most pending interferometry be every DwInterfDetectionPeriod and the again radio frames of many need to do interferometry.

One radio frames comprises again 10 subframes, and which subframe to do interferometry in, by the subframe index of interferometry Parameter determines.If control parameter DwInterfSubframeIdx of above-mentioned table 1 example is 0, then may determine that pending interference The subframe measured is subframe 1 and subframe 2.

S202, asks for the average energy of subcarrier at least one Resource Block described.

As it was previously stated, the subframe of pending interferometry both can comprise continuous resource block, it is also possible to comprise discontinuous money Source block.

Comprise as a example by continuous resource block by the subframe of pending interferometry.At radio frames enumerator to the interferometry cycle Carry out the subframe index that result is i and interferometry of modulus when being DwInterfSubframeIdx, ask for subframe The average energy of subcarrier at least one Resource Block on DwInterfSubframeIdx, if DwInterfSubframeIdx=0, then be to ask in subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource block Amount, i can be 0 to less than the arbitrary integer in interferometry cycle.In the present embodiment, both can be to ask in subframe 1 and subframe 2 The average energy of subcarrier on tested continuous resource block, it is also possible to ask in subframe 1 subcarrier on tested continuous resource block Average energy.

To ask in subframe 1 and subframe 2 on tested continuous resource block as a example by the average energy of subcarrier, can be according to formulaCalculate the uplink pilot time slot of subframe 1 Average energy P of subcarrier on Resource Block included in (Uplink Pilot Time Slot, UpPTS)₁。

Calculating P₁After, in the subframe 2 (sub-frame of uplink) of and then subframe 1 one On the tested continuous resource block of section, the average energy of subcarrier calculates, i.e. according to formulaCalculate son Average energy P of subcarrier on one section of tested continuous resource block in frame 2₂。

At above-mentioned P₁And P₂Computing formula in, Nsmb_UpPTS just represents included in the uplink pilot time slot of subframe 1 Hand over frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbolic number, DwInterfRBStart represents the initial index of tested Resource Block, and DwInterfRBNum represents quilt in described subframe 1 or subframe 2 Surveying the number of continuous resource block, Nsc represents the subcarrier number comprised on each Resource Block, DwInterfDetectionNSymb Expression measurement under the subframe index (i.e. control parameter DwInterfSubframeIdx of table 1) of interferometry configures OFDM symbol number, d represents the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, and l represents the notation index of d, K represents the sub-carrier indices of d, the use shown in table 2 that wherein DwInterfRBStart and DwInterfRBNum is generated by base station Give in the control parameter measuring interference.

Table 2

Control parameter name	Explanation
		DwInterfRBStart	The initial index of tested Resource Block
DwInterfRBNum	Tested bandwidth, the number of the most tested Resource Block

It should be noted that can be according to need owing to controlling the value of parameter DwInterfRBStart and DwInterfRBNum Specify, therefore, it can the detection as required nominated bandwidth disturbed.Such as, by P₁And P₂Computing formula understand, Be equivalent to the detection that the one section of bandwidth comprising DwInterfRBNum continuous resource block is disturbed.

Asking for P₁And P₂After, then ask for P₁And P₂Meansigma methods (P₁+P₂)/2, with (P₁+P₂)/2 are as subframe 1 and subframe 2 In the average energy of subcarrier on tested continuous resource block.

In the scheme that continuous resource block carries out Interference Detection, the subframe of the most pending interferometry comprises continuous resource During block, according to radio frames enumerator, the interferometry cycle is carried out result and the subframe index of measurement of modulus, determines pending Subframe in the radio frames of interferometry and described radio frames also has a kind of situation, even radio frames enumerator to interferometry week Phase carries out subframe index j that result is i and interferometry (j=DwInterfSubframeIdx) of modulus, it is determined that pending The subframe of interferometry be subframe number be the subframe of j, j is not equal to 0.Accordingly, it is determined that the subframe of pending interferometry may It is other any one subframes in subframe 1, subframe 2, subframe 3 or radio frames.To subcarrier on continuous resource block tested in subframe j Average energy P_jAsk for, can be according to formula

Calculate, P_jCalculating In formula, DwInterfDetectionN represents subframe j=under the subframe index of interferometry configures The OFDM symbol number of the measurement of DwInterfSubframeIdx, DwInterfRBStart represents that the Resource Block of interferometry initiates Index, described DwInterfRBNum represents the number of tested continuous resource block in subframe j, and Nsc represents and comprises on each Resource Block Subcarrier number, d represent reception signal in the l OFDM symbol, the frequency domain value of kth subcarrier, l represents the symbol rope of d Drawing, k represents the sub-carrier indices of d.

Above-described embodiment is that continuous resource block carries out Interference Detection, i.e. treats to detect discontinuous Resource Block below The method carrying out as a example by the subframe of interferometry comprises discontinuous Resource Block providing the embodiment of the present invention illustrates.

In the embodiment that discontinuous Resource Block is detected, determine the radio frames of pending interferometry and described nothing Subframe in line frame with determine radio frames and the described radio frames of pending interferometry when continuous resource block is detected in The embodiment of subframe be similar to, be the most also to dry according to radio frames enumerator (control parameter SFCount of the most above-mentioned table 1 example) Disturb the measurement cycle (control parameter DwInterfDetectionPeriod of the most above-mentioned table 1 example) and carry out result and the survey of modulus The subframe index of amount determines.Radio frames enumerator carries out the result of modulus and shows that current positive radio frames is the interferometry cycle Need to carry out the radio frames of interferometry.Such as, if radio frames enumerator the interferometry cycle is carried out the result of modulus be i and The subframe index (control parameter DwInterfSubframeIdx of the most above-mentioned table 1 example) of interferometry is not 0, then according to upper State the implication that radio frames enumerator carries out the result of modulus to the interferometry cycle, it may be determined that the subframe of pending interferometry For subframe index DwInterfSubframeIdx.If radio frames enumerator the interferometry cycle is carried out the result of modulus be i and The subframe index of interferometry is 0, then may determine that the subframe of pending interferometry is subframe 1 and subframe 2, and wherein, i represents The skew of the wireless frame period of interferometry, can be 0 arbitrary integer arriving less than DwInterfDetectionPeriod.

To ask in subframe 1 and subframe 2 on tested continuous resource block as a example by the average energy of subcarrier, can be according to formulaCalculate in the uplink pilot time slot of subframe 1 sub on each Resource Block Average energy P of carrier wave₁(rb)。

Calculating P₁(rb) after, on one section of tested continuous resource block in the subframe 2 (sub-frame of uplink) of and then subframe 1 The average energy of subcarrier calculates, i.e. according to formula

Calculate in subframe 2 Average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block₂(rb)。

At above-mentioned P₁And P (rb)₂(rb), in computing formula, Nsmb_UpPTS represents institute in the uplink pilot time slot of subframe 1 The OFDM symbol number comprised, rb represents Resource Block index value corresponding in DwInterfRBIdxTb, and DwInterfRBIdxTb is Tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, Nsc represents the subcarrier number comprised on each Resource Block, DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, d Representing and receive the l OFDM symbol, the frequency domain value of kth subcarrier in signal, l represents the notation index of d, and k represents the son load of d Ripple indexes, giving for measuring the control parameter of interference shown in the table 3 that wherein DwInterfRBIdxTb is generated by base station.

Table 3

Control parameter name	Explanation
		DwInterfRBIdxTb	The RB concordance list of interferometry, table interior element is the RB index needing to measure

It should be noted that can be according to need owing to controlling the value of parameter DwInterfRBStart and DwInterfRBNum Specify, therefore, it can the detection as required nominated bandwidth disturbed.Such as, by P₁And P (rb)₂(rb) calculating is public Formula understands, and is equivalent to the detection disturbing the one section of bandwidth comprising DwInterfRBNum discontinuous Resource Block.

Asking for P₁And P (rb)₂(rb) after, then P is asked for₁And P (rb)₂(rb) meansigma methods (P₁(rb)+P₂(rb))/2, with (P₁(rb)+P₂(rb))/2 as the average energy of subcarrier on discontinuous Resource Block tested in subframe 1 and subframe 2.

In the scheme that discontinuous Resource Block carries out Interference Detection, the subframe of the most pending interferometry comprises discontinuous During Resource Block, according to radio frames enumerator, the interferometry cycle is carried out result and the subframe index of measurement of modulus, determines and treat Carrying out the subframe in the radio frames of interferometry and described radio frames also has a kind of situation, even radio frames enumerator to survey interference The amount cycle carries out subframe index j that result is i and interferometry of modulus, it is determined that the subframe of pending interferometry is subframe The subframe of numbered j, j is not equal to 0.Accordingly, it is determined that the subframe of pending interferometry be probably subframe 1, subframe 2, subframe 3 or Any other subframe in radio frames.To average energy P of subcarrier on discontinuous Resource Block tested in subframe j_jAsk for, Can be according to formula

Calculate.

At P_j(rb), in calculating public affairs, DwInterfDetectionNSymb represents that the subframe index at interferometry configures Under the OFDMOFDM symbolic number of measurement of subframe j, described rb represents Resource Block RB index corresponding in DwInterfRBIdxTb Value, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, and described Nsc represents each resource The subcarrier number comprised on block, described d represents the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, institute Stating the notation index that l represents d, described k represents the sub-carrier indices of d.

S203, compares described average energy with the noise energy threshold value preset, if described average energy is more than described The noise energy threshold value preset, then report the instruction that the subframe of described pending interferometry is interfered.

Calculating average energy P₁、P₂、(P₁+P₂)/2、P_j、P₁(rb)、P₂(rb)、(P₁(rb)+P₂(rb))/2 or P_j (rb), after, these average energies can be compared with the noise energy threshold value preset, if any one in these average energies Individual more than the noise energy threshold value (DwInterfThreshold) preset, then by the subframe of pending interferometry by dry The instruction disturbed reports, base station controller coordinate the transmission between base station and subscriber equipment, to avoid long distance according to interference instruction The upward signal of this community is disturbed by the downstream signal from base station.

In embodiments of the present invention, the noise energy threshold value preset equal to thresholding Dynamic gene in aforementioned exemplary table 1 with Preset noise energy and (use P_noisRepresent) product, i.e. DwInterfThreshold=DwInterfThresholdFactor ×P_noise。

Knowable to the interference detection method that the invention described above embodiment provides, owing to the subframe of pending interferometry is root The subframe index of the result and interferometry that are carried out modulus according to frame counter the interferometry cycle determines, than and ask at least On one Resource Block after the average energy of subcarrier, it is compared, if average energy is more than with the noise energy threshold value preset The noise energy threshold value preset, then report the instruction that the subframe of pending interferometry is interfered.Therefore, the present invention is real The interference detection method that executing example provides can select to measure duration, Measurement bandwidth, measurement cycle and reporting schemes, by base flexibly Station control coordinates the transmission between base station and subscriber equipment, to avoid the downstream signal pair of remote base station according to interference instruction The upward signal interference of this community.

Refer to accompanying drawing 4, be the interference detecting apparatus structural representation of embodiment of the present invention offer.For convenience of description, Illustrate only the part relevant to the embodiment of the present invention.The interference detecting apparatus of accompanying drawing 4 example can be mobile communication system Base station or a functional unit of base station, it includes determining module 401, asking for module 402 and processing module 403, wherein:

Determine module 401, for being carried out according to radio frames enumerator result and the interference survey of modulus the interferometry cycle The subframe index of amount, determines that the subframe in the radio frames of pending interferometry and described radio frames, described pending interference are surveyed The subframe of amount comprises at least one Resource Block；

Ask for module 402, for asking for the average energy of subcarrier at least one Resource Block described；

Processing module 403, for described average energy is compared with the noise energy threshold value preset, if described average energy Amount is more than described default noise energy threshold value, then in the instruction subframe of described pending interferometry being interfered Report.

Knowable to the interference detecting apparatus that the invention described above embodiment provides, owing to the subframe of pending interferometry is root The subframe index of the result and interferometry that are carried out modulus according to frame counter the interferometry cycle determines, than and ask at least On one Resource Block after the average energy of subcarrier, it is compared, if average energy is more than with the noise energy threshold value preset The noise energy threshold value preset, then report the instruction that the subframe of pending interferometry is interfered.Therefore, the present invention is real The interference detection method that executing example provides can select to measure duration, Measurement bandwidth, measurement cycle and reporting schemes, by base flexibly Station control coordinates the transmission between base station and subscriber equipment, to avoid the downstream signal pair of remote base station according to interference instruction The upward signal interference of this community.

It should be noted that in the embodiment of above interference detecting apparatus, the division of each functional module is only to illustrate Bright, can as required in actual application, the configuration requirement of such as corresponding hardware or the convenient consideration of the realization of software, and incite somebody to action Above-mentioned functions distribution is completed by different functional modules, the internal structure of described interference detecting apparatus will be divided into different merits Energy module, to complete all or part of function described above.And, in actual application, the corresponding merit in the present embodiment Can module can be to be realized by corresponding hardware, it is also possible to performed corresponding software by corresponding hardware and complete, such as, aforesaid Determine module, can be that there is aforementioned result and the interference that the interferometry cycle carries out according to radio frames enumerator modulus of execution The subframe index measured, determines the hardware of the subframe of pending interferometry, such as determiner, it is also possible to be to be able to carry out accordingly Computer program thus complete general processor or other hardware devices of aforementioned function；The most aforesaid processing module, can Be have perform aforementioned by described average energy with preset noise energy threshold value compare, if described average energy be more than institute State default noise energy threshold value, then the subframe of described pending interferometry be interfered indicates the hard of reporting functions Part, such as processor, it is also possible to be to be able to carry out corresponding computer program thus complete aforementioned function general processor or Other hardware devices (each embodiment that this specification provides all can apply foregoing description principle).

In the interference detecting apparatus of accompanying drawing 4 example, the subframe of described pending interferometry comprises continuous resource block, and it is true Cover half block 401 may further include first and determines submodule 501, asks for module 402 and may further include first and ask for son Module 502, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 5, wherein:

First determines submodule 501, if for radio frames enumerator the interferometry cycle is carried out the result of modulus be i and The subframe index of described interferometry is 0, it is determined that the subframe of pending interferometry is subframe 1 and subframe 2, and described i is 0 to arrive Arbitrary integer less than the interferometry cycle；

First asks for submodule 502, for asking in described subframe 1 and subframe 2 subcarrier on tested continuous resource block Average energy.

The first of accompanying drawing 5 example asks for submodule 502 can also farther include first computing unit the 601, second calculating Unit 602 and the first average calculation unit 603, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 6, its In:

First computing unit 601, for according to formula Average energy P of subcarrier on Resource Block included in the uplink pilot time slot of calculating subframe 1₁；

Second computing unit 602, for according to formula

Calculate son Average energy P of subcarrier on one section of tested continuous resource block in frame 2₂；

First average calculation unit 603, is used for asking for P₁And P₂Meansigma methods (P₁+P₂)/2, with described (P₁+P₂)/2 conduct The average energy of subcarrier on tested continuous resource block in described subframe 1 and subframe 2.

In above-mentioned computing formula, it is orthogonal that described Nsmb_UpPTS represents included in the uplink pilot time slot of subframe 1 Frequency division multiplex OFDM symbolic number, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource block in described subframe 1 or subframe 2, and described Nsc represents each Resource Block On the subcarrier number that comprises, described DwInterfDetectionNSymb represents that the subframe index at described interferometry configures Under the OFDM symbol number of measurement, described d represents the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, institute Stating the notation index that l represents d, described k represents the sub-carrier indices of d.

In the interference detecting apparatus of accompanying drawing 4 example, the subframe of described pending interferometry comprises continuous resource block, and it is true Cover half block 401 can also farther include second and determine submodule 701, asks for module 402 and may further include second and ask for Submodule 702, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 7, wherein:

Second determines submodule 702, if the interferometry cycle carries out the result of modulus for described radio frames enumerator For i and subframe index j of described interferometry, it is determined that the subframe of pending interferometry be subframe number be the subframe of j, institute State j and be not equal to 0；

Second asks for submodule 703, for according to formula

Calculate in described subframe j Average energy P of subcarrier on one section of continuous tested Resource Block_j, described DwInterfDetectionNSymb represents described dry Disturb the OFDM symbol number of measurement of subframe j under the subframe index configuration of measurement, describedRepresent tested money The initial index of source block, described DwInterfRBNum represents the number of tested continuous resource block in described subframe j, described Nsc table Showing the subcarrier number comprised on each Resource Block, described d represents and receives in signal the l OFDM symbol, kth subcarrier Frequency domain value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

In the interference detecting apparatus of accompanying drawing 4 example, the subframe of described pending interferometry comprises discontinuous Resource Block, its Determine that module 401 can also farther include the 3rd and determine submodule 801, ask for module 402 and may further include the 3rd and ask Take submodule 802, the as shown in Figure 8 interference detecting apparatus of another embodiment of the present invention offer, wherein:

3rd determines submodule 801, if the interferometry cycle carries out the result of modulus for described radio frames enumerator Subframe index for i and described interferometry is 0, it is determined that the subframe of pending interferometry is subframe 1 and subframe 2, described i It is 0 to less than the arbitrary integer in interferometry cycle；

3rd asks for submodule 802, is used for asking in described subframe 1 and subframe 2 subcarrier on tested discontinuous Resource Block Average energy.

The 3rd of accompanying drawing 8 example asks for submodule 802 and may further include the 3rd computing unit the 901, the 4th calculating list Unit 902 and the second average calculation unit 903, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 9, its In:

3rd computing unit 901, for according to formulaMeter Average energy P of subcarrier on each Resource Block in the uplink pilot time slot of operator frame 1₁(rb)；

4th computing unit 902, for according to formula

Calculate in subframe 2 Average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block₂(rb)；

Second average calculation unit 903, is used for asking for P₁And P (rb)₂(rb) meansigma methods (P₁(rb)+P₂(rb))/2, with Described (P₁(rb)+P₂(rb))/2 as the average energy of subcarrier on discontinuous Resource Block tested in described subframe 1 and subframe 2；

In above-mentioned computing formula, Nsmb_UpPTS represents the orthogonal frequency included in the uplink pilot time slot of subframe 1 Multiplexing OFDM symbol number, described rb represents Physical Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, and described Nsc represents each resource The subcarrier number comprised on block, described DwInterfDetectionNSymb represents that the subframe index at described interferometry is joined The OFDM symbol number of the measurement under putting, described d represents the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, Described l represents that the notation index of d, described k represent the sub-carrier indices of d.

In the interference detecting apparatus of accompanying drawing 4 example, the subframe of described pending interferometry comprises discontinuous Resource Block, its Determine that module 401 can also farther include the 4th and determine submodule 1001, ask for module 402 and may further include the 4th and ask Take submodule 1002, the as shown in Figure 10 interference detecting apparatus of another embodiment of the present invention offer, wherein:

4th determines submodule 1001, if the interferometry cycle carries out the result of modulus for described radio frames enumerator For i and subframe index j of described interferometry, it is determined that the subframe of pending interferometry be subframe number be subframe j of j, Described i is 0 to less than the arbitrary integer in interferometry cycle, and described j is not equal to 0；

4th asks for submodule 1002, for according to formula

Calculate described subframe j In average energy P of subcarrier on one section of discontinuous tested Resource Block_j(rb), described DwInterfDetectionNSymb represents The OFDM symbol number of the measurement of subframe j under the subframe index of described interferometry configures, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested non-in described subframe j Continuous resource block concordance list, described Nsc represents the subcarrier number comprised on each Resource Block, and described d represents in reception signal The l OFDM symbol, the frequency domain value of kth subcarrier, described l represents the subcarrier rope that the notation index of d, described k represent d Draw.

It should be noted that contents such as mutual, the execution processes of information between each module/unit of said apparatus, due to The inventive method embodiment is based on same design, and its technique effect brought is identical with the inventive method embodiment, particular content Can be found in the narration in the inventive method embodiment, here is omitted.

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can Complete instructing relevant hardware by program, such as following various methods one or more or all:

According to radio frames enumerator, the interferometry cycle is carried out result and the subframe index of interferometry of modulus, determines Subframe in the radio frames of pending interferometry and described radio frames, the subframe of described pending interferometry comprises at least one Individual Resource Block；

Ask for the average energy of subcarrier at least one Resource Block described；

Described average energy is compared with the noise energy threshold value preset, if described average energy is more than described default Noise energy threshold value, then report the instruction that the subframe of described pending interferometry is interfered.

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can Completing instructing relevant hardware by program, this program can be stored in a computer-readable recording medium, storage Medium may include that read only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc..

A kind of interference detection method and the device that there is provided the embodiment of the present invention above are described in detail, and herein should Being set forth principle and the embodiment of the present invention by specific case, the explanation of above example is only intended to help reason Solve method and the core concept thereof of the present invention；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, All will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as this Bright restriction.

Claims (12)

1. an interference detection method, it is characterised in that described method includes:

According to radio frames enumerator, the interferometry cycle is carried out result and the subframe index of interferometry of modulus, determine treat into Subframe in the radio frames of row interferometry and described radio frames, the subframe of described pending interferometry comprises at least one money Source block；

Asking for the average energy of subcarrier at least one Resource Block described, described subcarrier is frequency-region signal；

Described average energy is compared with the noise energy threshold value preset, if described average energy is more than described default noise Energy threshold, then report the instruction that the subframe of described pending interferometry is interfered；

The subframe of described pending interferometry comprises continuous resource block；

Described result and the subframe index of measurement that according to radio frames enumerator, the interferometry cycle is carried out modulus, determine treat into Subframe in the radio frames of row interferometry and described radio frames includes: if the interferometry cycle is entered by described radio frames enumerator The result of row modulus be the subframe index of i and described interferometry be 0, it is determined that the subframe of pending interferometry is subframe 1 With subframe 2, described i is 0 to less than the arbitrary integer in interferometry cycle；

Described ask for the average energy of subcarrier at least one Resource Block described and include: ask for quilt in described subframe 1 and subframe 2 Survey the average energy of subcarrier on continuous resource block.

2. the method for claim 1, it is characterised in that described in ask for tested continuous resource in described subframe 1 and subframe 2 On block, the average energy of subcarrier includes:

According to formulaCalculate the up of subframe 1 Average energy P of subcarrier on Resource Block included in pilot time slot₁；

According to formula

Calculate nothing Average energy P of subcarrier on one section of tested continuous resource block in line subframe 2₂；

Ask for P₁And P₂Meansigma methods (P₁+P₂)/2, with described (P₁+P₂)/2 are as continuous money tested in described subframe 1 and subframe 2 The average energy of subcarrier on the block of source；

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, institute Stating DwInterfRBStart and represent the initial index of tested Resource Block, described DwInterfRBNum represents described subframe 1 or son The number of tested continuous resource block in frame 2, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

3. the method for claim 1, it is characterised in that described according to radio frames enumerator, the interferometry cycle is carried out The result of modulus and the subframe index of measurement, determine the subframe bag in the radio frames of pending interferometry and described radio frames Include: if the result that described radio frames enumerator carries out modulus to the interferometry cycle is i and the subframe index of described interferometry J, it is determined that the subframe of pending interferometry be subframe number be j, described i is 0 the most whole to less than the interferometry cycle Number, described j is not equal to 0；

Described ask for the average energy of subcarrier at least one Resource Block described and include: according to formulaCalculate in described subframe j one section Average energy P of subcarrier on continuous tested Resource Block_j, described DwInterfDetectionNSymb represents in described interference survey The OFDM symbol number of the measurement of subframe j under the subframe index configuration of amount, described DwInterfRBStart represents interferometry The initial index of Resource Block, described DwInterfRBNum represents the number of tested continuous resource block in described subframe j, described Nsc table Showing the subcarrier number comprised on each Resource Block, described d represents and receives in signal the l OFDM symbol, kth subcarrier Frequency domain value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

4. the method for claim 1, it is characterised in that the subframe of described pending interferometry comprises discrete money Source block；

Described result and the subframe index of measurement that according to radio frames enumerator, the interferometry cycle is carried out modulus, determine treat into Subframe in the radio frames of row interferometry and described radio frames includes: if the interferometry cycle is entered by described radio frames enumerator The result of row modulus be the subframe index of i and described interferometry be 0, it is determined that the subframe of pending interferometry is subframe 1 With subframe 2, described i is 0 to less than the arbitrary integer in interferometry cycle；

Described ask for the average energy of subcarrier at least one Resource Block described and include: ask for quilt in described subframe 1 and subframe 2 Survey the average energy of subcarrier on discontinuous Resource Block.

5. method as claimed in claim 4, it is characterised in that described in ask for tested discontinuous money in described subframe 1 and subframe 2 On the block of source, the average energy of subcarrier includes:

According to formulaCalculate in the uplink pilot time slot of subframe 1 every Average energy P of subcarrier on individual Resource Block₁(rb)；

According to formula

Calculate in subframe 2 one section Average energy P of subcarrier on each tested Resource Block of tested discontinuous Resource Block₂(rb)；

Ask for P₁And P (rb)₂(rb) meansigma methods (P of identical rb index₁(rb)+P₂(rb))/2, with described (P₁(rb)+P₂ (rb))/2 as the average energy of subcarrier on discontinuous Resource Block tested in described subframe 1 and subframe 2；

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, institute Stating the Resource Block RB index value that rb represents corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is described subframe 1 Or tested discontinuous Resource Block concordance list in subframe 2, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

6. the method for claim 1, it is characterised in that the subframe of described pending interferometry comprises discontinuous resource Block；

Described result and the subframe index of measurement that according to radio frames enumerator, the interferometry cycle is carried out modulus, determine treat into Subframe in the radio frames of row interferometry and described radio frames includes: if the interferometry cycle is entered by described radio frames enumerator The result of row modulus is i and subframe index j of described interferometry, it is determined that the subframe of pending interferometry is subframe number For the subframe of j, described i is 0 to the arbitrary integer less than the interferometry cycle, and described j is not equal to 0；

Described ask for the average energy of subcarrier at least one Resource Block described and include:

According to formula

Calculate in described subframe j one section discontinuous tested Average energy P of subcarrier on Resource Block_j(rb), described DwInterfDetectionNSymb represents at described interferometry The OFDM symbol number of the measurement of subframe j under subframe index configuration, described rb represents resource corresponding in DwInterfRBIdxTb Block RB index value, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, and described Nsc represents The subcarrier number comprised on each Resource Block, described d represents the l OFDM symbol, the frequency of kth subcarrier in reception signal Thresholding, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

7. an interference detecting apparatus, it is characterised in that described device includes:

Determine module, for being carried out according to radio frames enumerator result and the subframe of interferometry of modulus the interferometry cycle Index, determines the subframe in the radio frames of pending interferometry and described radio frames, the subframe of described pending interferometry Comprise at least one Resource Block；

Asking for module, for asking for the average energy of subcarrier at least one Resource Block described, described subcarrier is frequency domain letter Number；

Processing module, for comparing described average energy, if described average energy is more than with the noise energy threshold value preset Described default noise energy threshold value, then report the instruction that the subframe of described pending interferometry is interfered；

The subframe of described pending interferometry comprises continuous resource block；

Described determine that module includes that first determines submodule, if described first determine submodule for described frame counter to interference It is 0 that the measurement cycle carries out the subframe index that result is i and described interferometry of modulus, it is determined that the son of pending interferometry Frame is subframe 1 and subframe 2, and described i is 0 to less than the arbitrary integer in interferometry cycle；

Described module of asking for includes that first asks for submodule, and described first asks for submodule for asking for described subframe 1 and subframe 2 In the average energy of subcarrier on tested continuous resource block.

8. device as claimed in claim 7, it is characterised in that described first asks for submodule includes:

First computing unit, for according to formula

Calculate the uplink pilot time slot of subframe 1 Included in average energy P of subcarrier on Resource Block₁；

Second computing unit, for according to formula

Calculate subframe Average energy P of subcarrier on one section of tested continuous resource block in 2₂；

First average calculation unit, is used for asking for P₁And P₂Meansigma methods (P₁+P₂)/2, with described (P₁+P₂)/2 are as described son The average energy of subcarrier on tested continuous resource block in frame 1 and subframe 2；

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, institute Stating DwInterfRBStart and represent the initial index of tested Resource Block, described DwInterfRBNum represents described subframe 1 or son The number of tested continuous resource block in frame 2, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

9. device as claimed in claim 7, it is characterised in that described determine that module includes that second determines submodule, described the If two to determine that submodule carries out the result of modulus for described radio frames enumerator to the interferometry cycle be i and described interference is surveyed Subframe index j of amount, it is determined that the subframe of pending interferometry be subframe number be the subframe of j, described i is 0 to less than dry Disturbing the arbitrary integer in measurement cycle, described j is not equal to 0；

Described module of asking for includes that second asks for submodule, and described second asks for submodule for according to formulaCalculate one section of company in described subframe j Average energy P of subcarrier on continuous tested Resource Block_j, described DwInterfDetectionNSymb represents at described interferometry Subframe index configuration under the OFDM symbol number of measurement of subframe j, described DwInterfRBStart represents tested Resource Block Initial index, described DwInterfRBNum represents the number of tested continuous resource block in described subframe j, and described Nsc represents each The subcarrier number comprised on Resource Block, described d represents the l OFDM symbol, the frequency domain of kth subcarrier in reception signal Value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.

10. device as claimed in claim 7, it is characterised in that the subframe of described pending interferometry comprises discrete Resource Block；

Described determine that module includes that the 3rd determines submodule, if the described 3rd determines that submodule is for described radio frames enumerator pair It is 0 that the interferometry cycle carries out the subframe index that result is i and described interferometry of modulus, it is determined that pending interferometry Subframe be subframe 1 and subframe 2, described i is 0 to less than the arbitrary integer in interferometry cycle；

Described module of asking for includes that the 3rd asks for submodule, and the described 3rd asks for submodule for asking for described subframe 1 and subframe 2 In the average energy of subcarrier on tested discontinuous Resource Block.

11. devices as claimed in claim 10, it is characterised in that the described 3rd asks for submodule includes:

3rd computing unit, for according to formula

Calculate in the uplink pilot time slot of subframe 1 each

Average energy P of subcarrier on Resource Block₁(rb)；

4th computing unit, for according to formula

$P_2\left(rb\right)=\frac{\underset{l=0}{\overset{DwInterfDetectionNSymb-Nsymb\_UpPTS-1}{\mathrm{\Σ}}}\underset{k=rb*Nsc}{\overset{(rb+1)*Nsc-1}{\mathrm{\Σ}}}{\left|d(l,k)\right|}^2}{(DwInterfDetectionNSymb-Nsymb\_UpPTS)*Nsc}$

Average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2₂(rb)；

Second average calculation unit, is used for asking for P₁And P (rb)₂(rb) meansigma methods (P₁(rb)+P₂(rb))/2, with described (P₁ (rb)+P₂(rb))/2 as the average energy of subcarrier on discontinuous Resource Block tested in described subframe 1 and subframe 2；

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number included in the uplink pilot time slot of subframe 1, institute Stating the Resource Block RB index value that rb represents corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is described subframe 1 Or tested discontinuous Resource Block concordance list in subframe 2, described Nsc represents the subcarrier number comprised on each Resource Block, described DwInterfDetectionNSymb represents the OFDM symbol number of the measurement under the subframe index of described interferometry configures, institute Stating d and represent the l OFDM symbol, the frequency domain value of kth subcarrier in reception signal, described l represents the notation index of d, described k Represent the sub-carrier indices of d.

12. devices as claimed in claim 7, it is characterised in that the subframe of described pending interferometry comprises discontinuous money Source block；

Described determine that module includes that the 4th determines submodule, if the described 4th determines that submodule is for described radio frames enumerator pair It is i and subframe index j of described interferometry that the interferometry cycle carries out the result of modulus, it is determined that pending interferometry Subframe be subframe number be the subframe of j, described i is 0 to less than the arbitrary integer in interferometry cycle, and described j is not equal to 0；

Described module of asking for includes that the 4th asks for submodule, and the described 4th asks for submodule for according to formulaCalculate one section of discontinuous tested survey in described subframe j to provide Average energy P of subcarrier on the block of source_j(rb), described DwInterfDetectionNSymb represents the son at described interferometry The OFDM symbol number of the measurement of subframe j under frame index configuration, described rb represents Resource Block corresponding in DwInterfRBIdxTb RB index value, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, and described Nsc represents every The subcarrier number comprised on individual Resource Block, described d represents the l OFDM symbol, the frequency domain of kth subcarrier in reception signal Value, described l represents that the notation index of d, described k represent the sub-carrier indices of d.