CN103701744A - Interference detection method and device - Google Patents

Abstract

The embodiment of the invention provides an interference detection method and device, and aims to report detected interference in time so as to coordinate transmission between a base station and user equipment. The interference detection method comprises the following steps: according to a result of modulus operation performed on an interference measurement period by a wireless frame counter and an interference measurement subframe index, determining a wireless frame and subframes in the wireless frame on which interference measurement is to be performed; working out average energy of subcarriers on at least one resource block; and comparing the average energy with a preset noise energy threshold value, and if the average energy is greater than the preset noise energy threshold value, reporting indication that the subframes to be subjected to interference measurement are interfered. By the interference detection method, the measurement time length, the measurement bandwidth, the measurement period and the reporting way can be flexibly selected, and a base station controller can coordinate the transmission between the base station and the user equipment according to interference instruction so as to avoid interference of a downlink signal of a remote base station on an uplink signal in a cell.

Description

A kind of interference detection method and device

Technical field

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

Background technology

The frame of a time division multiple access connecting system is comprised of a plurality of radio frames, and each radio frames comprises again a plurality of subframes, as shown in accompanying drawing 1-a.In the frame structure shown in accompanying drawing 1-a, subframe 0(Subframe#0) be descending sub frame, subframe 2(Subframe#2) be sub-frame of uplink, except subframe 0, subframe 2 and subframe 1(Subframe#1), the up-downgoing of all the other subframes can be determined according to configuration.Subframe 1 belongs to special subframe; have the function of ascending-descending subframes concurrently; it had both comprised the descending OFDM of transmission (Orthogonal Frequency Division Multiplexing; OFDM) descending pilot frequency time slot of symbol (Downlink Pilot Time Slot; DwPTS), the uplink pilot time slot (Uplink Pilot Time Slot, UpPTS) that comprises again transmission upgoing O FDM symbol; it between DwPTS and UpPTS, is protection interval (Guard Period, GP).

If the DwPTS propagation delay time of certain base station is little, other base stations can be not disturbed when receiving the UpPTS of this community.Yet for the base station group of large-scale network-estabilishing, some base station propagation distance is far away, transmitting power is larger again, and the DwPTS signal of these base stations likely causes interference to the UpPTS of other base stations or even sub-frame of uplink below, can not successfully receive upward signal.

As shown in accompanying drawing 1-b, 1 distance users equipment (User Equipment, UE) 1 is nearer in base station (evolution NodeB, eNB), is that UE1 is at base station 1(eNB1) community covering accepts the service of eNB1; Base station 2(eNB2) be the base station far away apart from UE1.Because the signal propagation distance of eNB2 is far away, transmitting power is large, therefore, the UpPTS signal that the DwPTS signal that eNB2 sends just likely sends to eNB1 UE1 produces and disturbs, and just shows as DwPTS and UpPTS is partially or completely overlapping in time domain.

Yet, how detecting the interference of above-mentioned accompanying drawing 1-b example, and then the indication being interfered is reported to base station controller, 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 in time detected interference, coordinates base station to the transmission between subscriber equipment.

The embodiment of the present invention provides a kind of interference detection method, described method comprises: according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of interferometry, determine the radio frames of pending interferometry and the subframe in radio frames, the subframe of described pending interferometry comprises at least one Resource Block; Ask for the average energy of subcarrier on described at least one Resource Block; By described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

Alternatively, the subframe of described pending interferometry comprises continuous resource piece, describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be that the subframe index of i and described interferometry is 0, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle; The described average energy of asking for subcarrier on described at least one Resource Block comprises: ask in described subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource piece.

Alternatively, described in, asking in described subframe 1 and/or subframe 2 average energy of subcarrier on tested continuous resource piece comprises:

According to formula $P_1=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\Σ}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\Σ}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in the uplink pilot time slot of subframe 1 comprise subcarrier on Resource Block average energy P ₁;

According to formula

${\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="HDA00002212999600012.png"\; state="\{\{state\}\}">P</figure-callout>}}_2=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectopmNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of tested continuous resource piece in calculating wireless sub-frame 2 ₂, ask for P ₁and P ₂mean value (P ₁+ P ₂)/2, with described (P ₁+ P ₂)/2 are as the average energy of subcarrier on tested continuous resource piece in described subframe 1 and subframe 2, described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises continuous resource piece, describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be the subframe index j of i and described interferometry, the subframe of determining pending interferometry is that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The described average energy of asking for subcarrier on described at least one Resource Block comprises: according to formula $P_j=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of continuous tested Resource Block _jdescribed DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described DwInterfRBStart represents the initial index of the Resource Block of interferometry, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discrete Resource Block, describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be that the subframe index of i and described interferometry is 0, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle; The described average energy of asking for subcarrier on described at least one Resource Block comprises: ask in described subframe 1 and subframe 2 average energy of subcarrier on tested discontinuous Resource Block.

Alternatively, described in, asking in described subframe 1 and subframe 2 average energy of subcarrier on tested discontinuous Resource Block comprises:

According to formula $P_1\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{Nsc}}$ The average energy P of subcarrier on each Resource Block in the uplink pilot time slot of calculating subframe 1 ₁(rb);

According to formula

$P_2\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2 ₂(rb);

Ask for P ₁and P (rb) ₂(rb) mean value (P of identical rb index ₁(rb)+P ₂(rb))/2, with described (P ₁(rb)+P ₂(rb))/2 average energies as subcarrier on tested discontinuous Resource Block in described subframe 1 and subframe 2, described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discontinuous Resource Block, describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be the subframe index j of i and described interferometry, the subframe of determining pending interferometry is the subframe that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The described average energy of asking for subcarrier on described at least one Resource Block comprises:

According to formula

$P_j\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{Nsc}}$ Calculate in described subframe j one section discontinuous

The average energy P of subcarrier on tested Resource Block _j(rb), described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

The embodiment of the present invention provides a kind of interference detecting apparatus, described device comprises: determination module, for the interferometry cycle being asked to the result of mould and the subframe index of interferometry according to radio frames counter, determine the radio frames of pending interferometry and the subframe in 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 on described at least one Resource Block; Processing module, for by described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

Alternatively, the subframe of described pending interferometry comprises continuous resource piece, described determination module comprises that first determines submodule, if described first determines that it is that the subframe index of i and described interferometry is 0 that submodule is asked the result of mould for described frame counter to the interferometry cycle, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle; The described module of asking for comprises that first asks for submodule, and described first asks for submodule for asking for the average energy of subcarrier on the tested continuous resource piece of described subframe 1 and subframe 2.

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

$P_1=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfPRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in the uplink pilot time slot of subframe 1 comprise subcarrier on Resource Block average energy P ₁; The second computing unit, for according to formula $P_{}$ ${}_2=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of tested continuous resource piece in calculating subframe 2 ₂, the first mean value computation unit, for asking for P ₁and P ₂mean value (P ₁+ P ₂)/2, with described (P ₁+ P ₂)/2 are as the average energy of subcarrier on tested continuous resource piece in described subframe 1 and subframe 2, described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises continuous resource piece, described determination module comprises that second determines submodule, if described second determines that it is the subframe index j of i and described interferometry that submodule is asked the result of mould for described radio frames counter to the interferometry cycle, the subframe of determining pending interferometry is the subframe that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0; The described module of asking for comprises that second asks for submodule, and described second asks for submodule for according to formula

$P_j=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of continuous tested Resource Block _jdescribed DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discrete Resource Block, described determination module comprises that the 3rd determines submodule, if the described the 3rd determines that it is that the subframe index of i and described interferometry is 0 that submodule is asked the result of mould for described radio frames counter to the interferometry cycle, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle; The described module of asking for comprises that the 3rd asks for submodule, and the described the 3rd asks for submodule for asking for the average energy of subcarrier on the tested discontinuous Resource Block of described subframe 1 and subframe 2.

Alternatively, the described the 3rd asks for submodule comprises: the 3rd computing unit, and for according to formula $P_1\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{Nsc}}$ The average energy P of subcarrier on each Resource Block in the uplink pilot time slot of calculating subframe 1 ₁(rb); The 4th computing unit, for according to formula

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

The average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2 ₂(rb), the second mean value computation unit, for asking for P ₁and P (rb) ₂(rb) mean value (P ₁(rb)+P ₂(rb))/2, with described (P ₁(rb)+P ₂(rb))/2 average energies as subcarrier on tested discontinuous Resource Block in described subframe 1 and subframe 2, described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

Alternatively, the subframe of described pending interferometry comprises discontinuous Resource Block, described determination module comprises that the 4th determines submodule, if the described the 4th determines that it is the subframe index j of i and described interferometry that submodule is asked the result of mould for described radio frames counter to the interferometry cycle, the subframe of determining pending interferometry is the subframe that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0; The described module of asking for comprises that the 4th asks for submodule, and the described the 4th asks for submodule for according to formula

$P_j\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of discontinuous tested survey Resource Block _j(rb), described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

From the invention described above embodiment, because the subframe of pending interferometry is to ask the result of mould and the subframe index of interferometry to determine according to frame counter to the interferometry cycle, compare and ask for after the average energy of subcarrier at least one Resource Block, by itself and default noise energy threshold value comparison, if average energy is greater than default noise energy threshold value, the indication subframe of pending interferometry being interfered reports.Therefore, the interference detection method that the embodiment of the present invention provides is State selective measurements duration, Measurement bandwidth, measuring period and report mode flexibly, by base station controller, according to disturbing, indicate the transmission of coordinating between base station and subscriber equipment, to avoid the upward signal of the downstream signal Dui Zhe community of remote base station to disturb.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in prior art or embodiment description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, can also obtain as these accompanying drawings other accompanying drawing.

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

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

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 piece 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.

Embodiment

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 clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those skilled in the art obtain, belongs to the scope of protection of the invention.

Referring to accompanying drawing 2, is the interference detection method schematic flow sheet that the embodiment of the present invention provides.The executive agent of the method for accompanying drawing 2 examples can be the base station in mobile communication system, mainly comprises step S201, step S202 and step S203:

S201, according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of interferometry, determine the radio frames of pending interferometry and the subframe in described radio frames, the subframe of described pending interferometry comprises at least one Resource Block.

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

Table 1

The method that the embodiment of the present invention provides both can be carried out Interference Detection to continuous resource piece (RB, Resource Block), also can detect discontinuous Resource Block; The subframe of pending interferometry comprises at least one Resource Block, and it can be continuous resource piece, can be also non-continuous resource piece; In time-division-Long Term Evolution (Time Division-Long Term Evolution, TD-LTE) system, RB is the minimum scheduling unit of system.As shown in accompanying drawing 3-a, be continuous RB schematic diagram, shown in accompanying drawing 3-b, be discontinuous RB schematic diagram.

Can to the interferometry cycle (being the control parameter DwInterfDetectionPeriod of above-mentioned table 1 example), ask the result of mould and the subframe index of measurement according to radio frames counter (being the control parameter S FCount of above-mentioned table 1 example), determine the radio frames of pending interferometry and the subframe in described radio frames.Radio frames counter asks the result of mould to show that current wireless frame is the radio frames that need to carry out interferometry to the interferometry cycle.For example, if radio frames counter is asked the result of mould to the interferometry cycle, be i, represent every DwInterfDetectionPeriod radio frames, and the radio frames of skew i, need to do interferometry, wherein, i can be 0 to the arbitrary integer that is less than the interferometry cycle.For example, according to above-mentioned radio frames counter, the interferometry cycle being asked to the result of mould is 1, the radio frames of pending interferometry for every DwInterfDetectionPeriod and again the radio frames of many need to do interferometry.

A radio frames comprises again 10 subframes, and which subframe to do interferometry in, by the subframe index parameter of interferometry, is determined.If the control parameter DwInterfSubframeIdx of above-mentioned table 1 example is 0, the subframe that can determine pending interferometry is subframe 1 and subframe 2.

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

As previously mentioned, the subframe of pending interferometry both can comprise continuous resource piece, also can comprise discontinuous Resource Block.

The subframe of pending interferometry of take comprises continuous resource piece as example.At radio frames counter, the interferometry cycle being asked to the result of mould is that the subframe index of i and interferometry is while being DwInterfSubframeIdx, ask for the average energy of subcarrier at least one Resource Block on subframe DwInterfSubframeIdx, if DwInterfSubframeIdx=0, be to ask in subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource piece, i can be 0 to the arbitrary integer that is less than the interferometry cycle.In the present embodiment, can be both to ask in subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource piece, can be also to ask in subframe 1 average energy of subcarrier on tested continuous resource piece.

Take that to ask in subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource piece be example, can be according to formula $P_1=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in the uplink pilot time slot (Uplink Pilot Time Slot, UpPTS) of subframe 1 comprise subcarrier on Resource Block average energy P ₁.

Calculating P ₁after, to the subframe 2(sub-frame of uplink of subframe 1 and then) on one section of tested continuous resource piece the average energy of subcarrier calculate, according to formula

${\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="HDA00002212999600012.png"\; state="\{\{state\}\}">P</figure-callout>}}_2=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}+1}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInTerfRBNum})*\mathrm{Nsc}}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of tested continuous resource piece in calculating subframe 2 ₂.

At above-mentioned P ₁and P ₂computing formula in, Nsmb_UpPTS represents OFDM (the Orthogonal Frequency Division Multiplexing comprising in the uplink pilot time slot of subframe 1, OFDM) symbolic number, DwInterfRBStart represents the initial index of tested Resource Block, DwInterfRBNum represents the number of tested continuous resource piece in described subframe 1 or subframe 2, Nsc represents the subcarrier number comprising on each Resource Block, DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under subframe index (i.e. the control parameter DwInterfSubframeIdx of the table 1) configuration of interferometry, d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, l represents the notation index of d, k represents the sub-carrier indices of d, the control parameter for measurements interference shown in the table 2 that wherein DwInterfRBStart and DwInterfRBNum are generated by base station is given.

Table 2

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

It should be noted that, owing to controlling the value of parameter DwInterfRBStart and DwInterfRBNum, can specify as required, therefore, the detection that can disturb nominated bandwidth as required.For example,, by P ₁and P ₂computing formula known, be equivalent to one section of detection that bandwidth is disturbed to comprising DwInterfRBNum continuous resource piece.

Asking for P ₁and P ₂after, then ask for P ₁and P ₂mean value (P ₁+ P ₂)/2, with (P ₁+ P ₂)/2 are as the average energy of subcarrier on tested continuous resource piece in subframe 1 and subframe 2.

Continuous resource piece is being carried out in the scheme of Interference Detection, be that the subframe of pending interferometry is while comprising continuous resource piece, according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames also have a kind of situation, even the interferometry cycle is asked to the result of mould is the subframe index j (j=DwInterfSubframeIdx) of i and interferometry to radio frames counter, the subframe of determining pending interferometry is the subframe that subframe is numbered j, and j is not equal to 0.Therefore the subframe of, determining pending interferometry may be other any one subframes in subframe 1, subframe 2, subframe 3 or radio frames.Average energy P to subcarrier on tested continuous resource piece in subframe j _jask for, can be according to formula

$P_j=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate P _jcomputing formula in, DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j=DwInterfSubframeIdx under the subframe index configuration of interferometry, DwInterfRBStart represents the initial index of the Resource Block of interferometry, described DwInterfRBNum represents the number of tested continuous resource piece in subframe j, Nsc represents the subcarrier number comprising on each Resource Block, d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, l represents the notation index of d, and k represents the sub-carrier indices of d.

Above-described embodiment is that continuous resource piece is carried out to Interference Detection, below take that discontinuous Resource Block is detected is that the subframe of pending interferometry comprises discontinuous Resource Block and describes as the method that example provides the embodiment of the present invention.

In the embodiment that discontinuous Resource Block is detected, when determining radio frames and the subframe in described radio frames of pending interferometry and continuous resource piece being detected, determining that the radio frames of pending interferometry and the embodiment of the subframe in described radio frames are similar, is also to the interferometry cycle (being the control parameter DwInterfDetectionPeriod of above-mentioned table 1 example), to ask the result of mould and the subframe index of measurement to determine according to radio frames counter (being the control parameter S FCount of above-mentioned table 1 example).Radio frames counter asks the result of mould to show that current positive radio frames is the radio frames that need to carry out interferometry to the interferometry cycle.For example, if it is that the subframe index (being the control parameter DwInterfSubframeIdx of above-mentioned table 1 example) of i and interferometry is not 0 that radio frames counter is asked the result of mould to the interferometry cycle, according to above-mentioned radio frames counter, asked to the implication of the result of mould the interferometry cycle, the subframe that can determine pending interferometry is subframe index DwInterfSubframeIdx.If it is that the subframe index of i and interferometry is 0 that radio frames counter is asked the result of mould to the interferometry cycle, the subframe that can determine pending interferometry is subframe 1 and subframe 2, wherein, i represents the skew of the wireless frame period of interferometry, can be 0 to the arbitrary integer that is less than DwInterfDetectionPeriod.

Take that to ask in subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource piece be example, can be according to formula $P_1\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{Nsc}}$ The average energy P of subcarrier on each Resource Block in the uplink pilot time slot of calculating subframe 1 ₁(rb).

Calculating P ₁(rb) after, to the subframe 2(sub-frame of uplink of subframe 1 and then) on one section of tested continuous resource piece the average energy of subcarrier calculate, according to formula

$P_2\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2 ₂(rb).

At above-mentioned P ₁and P (rb) ₂(rb) in computing formula, Nsmb_UpPTS represents the OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, rb represents Resource Block index value corresponding in DwInterfRBIdxTb, DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, Nsc represents the subcarrier number comprising on each Resource Block, DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, l represents the notation index of d, k represents the sub-carrier indices of d, the control parameter for measurements interference shown in the table 3 that wherein DwInterfRBIdxTb is generated by base station is given.

Table 3

Control parameter name	Explanation
		DwInterfRBIdxTb	The RB concordance list of interferometry, table interior element is the RB index that needs measurement

It should be noted that, owing to controlling the value of parameter DwInterfRBStart and DwInterfRBNum, can specify as required, therefore, the detection that can disturb nominated bandwidth as required.For example,, by P ₁and P (rb) ₂(rb) computing formula is known, is equivalent to comprising one section of detection that bandwidth is disturbed of DwInterfRBNum discontinuous Resource Block.

Asking for P ₁and P (rb) ₂(rb) after, then ask for P ₁and P (rb) ₂(rb) mean value (P ₁(rb)+P ₂(rb))/2, with (P ₁(rb)+P ₂(rb))/2 average energies as subcarrier on tested discontinuous Resource Block in subframe 1 and subframe 2.

Discontinuous Resource Block is being carried out in the scheme of Interference Detection, be that the subframe of pending interferometry is while comprising discontinuous Resource Block, according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames also have a kind of situation, even the interferometry cycle is asked to the result of mould is the subframe index j of i and interferometry to radio frames counter, the subframe of determining pending interferometry is the subframe that subframe is numbered j, and j is not equal to 0.Therefore the subframe of, determining pending interferometry may be any other subframe in subframe 1, subframe 2, subframe 3 or radio frames.Average energy P to subcarrier on tested discontinuous Resource Block in subframe j _jask for, can be according to formula

$P_j\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterRBNum}*\mathrm{Nsc}}$ Calculate.

At P _j(rb) in calculating public affairs, DwInterfDetectionNSymb is illustrated in the OFDMOFDM symbolic number of the measurement of the subframe j under the subframe index configuration of interferometry, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

S203, by described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

Calculating average energy P ₁, P ₂, (P ₁+ P ₂)/2, P _j, P ₁(rb), P ₂(rb), (P ₁(rb)+P ₂(rb))/2 or P _j(rb) after, can be by these average energies and default noise energy threshold value comparison, if any one in these average energies is greater than default noise energy threshold value (DwInterfThreshold), the indication subframe of pending interferometry being interfered reports, by base station controller, according to disturbing, indicate the transmission of coordinating between base station and subscriber equipment, to avoid the upward signal of the downstream signal Dui Zhe community of remote base station to disturb.

In embodiments of the present invention, default noise energy threshold value equals in aforementioned exemplary table 1 that thresholding is adjusted the factor and default noise energy (is used P _noiseexpression) product, that is, and DwInterfThreshold=DwInterfThresholdFactor * P _noise.

The interference detection method providing from the invention described above embodiment, because the subframe of pending interferometry is to ask the result of mould and the subframe index of interferometry to determine according to frame counter to the interferometry cycle, compare and ask for after the average energy of subcarrier at least one Resource Block, by itself and default noise energy threshold value comparison, if average energy is greater than default noise energy threshold value, the indication subframe of pending interferometry being interfered reports.Therefore, the interference detection method that the embodiment of the present invention provides is State selective measurements duration, Measurement bandwidth, measuring period and report mode flexibly, by base station controller, according to disturbing, indicate the transmission of coordinating between base station and subscriber equipment, to avoid the upward signal of the downstream signal Dui Zhe community of remote base station to disturb.

Referring to accompanying drawing 4, is the interference detecting apparatus structural representation that the embodiment of the present invention provides.For convenience of explanation, only show the part relevant to the embodiment of the present invention.The interference detecting apparatus of accompanying drawing 4 examples can be a functional unit of base station or the base station of mobile communication system, and it comprises determination module 401, asks for module 402 and processing module 403, wherein:

Determination module 401, for the interferometry cycle being asked to the result of mould and the subframe index of interferometry according to radio frames counter, determine the radio frames of pending interferometry and the subframe in described radio frames, the subframe of described pending interferometry comprises at least one Resource Block;

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

Processing module 403, for by described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

The interference detecting apparatus providing from the invention described above embodiment, because the subframe of pending interferometry is to ask the result of mould and the subframe index of interferometry to determine according to frame counter to the interferometry cycle, compare and ask for after the average energy of subcarrier at least one Resource Block, by itself and default noise energy threshold value comparison, if average energy is greater than default noise energy threshold value, the indication subframe of pending interferometry being interfered reports.Therefore, the interference detection method that the embodiment of the present invention provides is State selective measurements duration, Measurement bandwidth, measuring period and report mode flexibly, by base station controller, according to disturbing, indicate the transmission of coordinating between base station and subscriber equipment, to avoid the upward signal of the downstream signal Dui Zhe community of remote base station to disturb.

It should be noted that, in the execution mode of above interference detecting apparatus, the division of each functional module only illustrates, can be as required in practical application, for example the facility of the configuration requirement of corresponding hardware or the realization of software is considered, and above-mentioned functions is distributed, by different functional modules, completed, the internal structure that is about to described interference detecting apparatus is divided into different functional modules, to complete all or part of function described above.And, in practical application, corresponding functional module in the present embodiment can be to be realized by corresponding hardware, also can be completed by the corresponding software of corresponding hardware implement, for example, aforesaid determination module, can be to have to carry out aforementionedly according to radio frames counter, the interferometry cycle to be asked to the result of mould and the subframe index of interferometry, determine the hardware of the subframe of pending interferometry, determiner for example, thus can be also to carry out general processor or other hardware devices that corresponding computer program completes aforementioned function; For another example aforesaid processing module, can be have carry out aforementioned by described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the hardware of the indication the reporting functions subframe of described pending interferometry being interfered, processor for example, thus can be also to carry out general processor or other hardware devices (each embodiment that this specification provides can apply foregoing description principle) that corresponding computer program completes aforementioned function.

In the interference detecting apparatus of accompanying drawing 4 examples, the subframe of described pending interferometry comprises continuous resource piece, its determination module 401 may further include first and determines submodule 501, asking for module 402 may further include first and asks for submodule 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 counter, the interferometry cycle being asked to the result of mould is that the subframe index of i and described interferometry is 0, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle;

First asks for submodule 502, for asking for the average energy of subcarrier on the tested continuous resource piece of described subframe 1 and subframe 2.

First of accompanying drawing 5 examples are asked for submodule 502 and also be may further include the first computing unit 601, the second computing unit 602 and the first mean value computation unit 603, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 6, wherein:

The first computing unit 601, for according to formula

$P_1=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in the uplink pilot time slot of subframe 1 comprise subcarrier on Resource Block average energy P ₁;

The second computing unit 602, for according to formula

${\mathrm{<figure-callout\; id="2"\; label="P"\; filenames="HDA00002212999600012.png"\; state="\{\{state\}\}">P</figure-callout>}}_2=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of tested continuous resource piece in calculating subframe 2 ₂;

The first mean value computation unit 603, for asking for P ₁and P ₂mean value (P ₁+ P ₂)/2, with described (P ₁+ P ₂)/2 are as the average energy of subcarrier on tested continuous resource piece in described subframe 1 and subframe 2.

In above-mentioned computing formula, described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

In the interference detecting apparatus of accompanying drawing 4 examples, the subframe of described pending interferometry comprises continuous resource piece, its determination module 401 also may further include second and determines submodule 701, asking for module 402 may further include second and asks 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 is asked to the result of mould for described radio frames counter, is the subframe index j of i and described interferometry, determines that the subframe of pending interferometry is the subframe that subframe is numbered j, and described j is not equal to 0;

Second asks for submodule 703, for according to formula

$P_j=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of continuous tested Resource Block _jdescribed DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

In the interference detecting apparatus of accompanying drawing 4 examples, the subframe of described pending interferometry comprises discontinuous Resource Block, its determination module 401 also may further include the 3rd and determines submodule 801, asking for module 402 may further include the 3rd and asks for submodule 802, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 8, wherein:

The 3rd determines submodule 801, if for described radio frames counter, the interferometry cycle being asked to the result of mould is that the subframe index of i and described interferometry is 0, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle;

The 3rd asks for submodule 802, for asking for the average energy of subcarrier on the tested discontinuous Resource Block of described subframe 1 and subframe 2.

The 3rd of accompanying drawing 8 examples are asked for submodule 802 and be may further include the 3rd computing unit 901, the 4th computing unit 902 and the second mean value computation unit 903, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 9, wherein:

The 3rd computing unit 901, for according to formula

$P_1\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{Nsc}}$ The average energy P of subcarrier on each Resource Block in the uplink pilot time slot of calculating subframe 1 ₁(rb);

The 4th computing unit 902, for according to formula

$P_2\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2 ₂(rb);

The second mean value computation unit 903, for asking for P ₁and P (rb) ₂(rb) mean value (P ₁(rb)+P ₂(rb))/2, with described (P ₁(rb)+P ₂(rb))/2 average energies as subcarrier on tested discontinuous Resource Block in described subframe 1 and subframe 2;

In above-mentioned computing formula, Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, 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, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

In the interference detecting apparatus of accompanying drawing 4 examples, the subframe of described pending interferometry comprises discontinuous Resource Block, its determination module 401 also may further include the 4th and determines submodule 1001, asking for module 402 may further include the 4th and asks for submodule 1002, the interference detecting apparatus that another embodiment of the present invention provides as shown in Figure 12, wherein:

The 4th determines submodule 1001, if for described radio frames counter, the interferometry cycle being asked to the result of mould is the subframe index j of i and described interferometry, the subframe of determining pending interferometry is the subframe j that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The 4th asks for submodule 1002, for according to formula

$P_j\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of discontinuous tested Resource Block _j(rb), described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

It should be noted that, the contents such as the information interaction between each module/unit of said apparatus, implementation, due to the inventive method embodiment based on same design, its technique effect bringing is identical with the inventive method embodiment, particular content can, referring to the narration in the inventive method embodiment, repeat no more herein.

One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is to come the hardware that instruction is relevant to complete by program, such as following the whole bag of tricks one or more or all:

According to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of interferometry, determine the radio frames of pending interferometry and the subframe in described radio frames, the subframe of described pending interferometry comprises at least one Resource Block;

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

By described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is to come the hardware that instruction is relevant to complete by program, this program can be stored in a computer-readable recording medium, storage medium can comprise: 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 above the embodiment of the present invention are provided are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.

Claims (14)

1. an interference detection method, is characterized in that, described method comprises:

According to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of interferometry, determine the radio frames of pending interferometry and the subframe in described radio frames, the subframe of described pending interferometry comprises at least one Resource Block;

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

By described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

2. the method for claim 1, is characterized in that, the subframe of described pending interferometry comprises continuous resource piece;

Describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be that the subframe index of i and described interferometry is 0, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle;

The described average energy of asking for subcarrier on described at least one Resource Block comprises: ask in described subframe 1 and subframe 2 average energy of subcarrier on tested continuous resource piece.

3. method as claimed in claim 2, is characterized in that, described in ask in described subframe 1 and/or subframe 2 average energy of subcarrier on tested continuous resource piece and comprise:

According to formula $P_1=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in the uplink pilot time slot of subframe 1 comprise subcarrier on Resource Block average energy P ₁;

According to formula

$P_2=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of tested continuous resource piece in calculating wireless sub-frame 2 ₂;

Ask for P ₁and P ₂mean value (P ₁+ P ₂)/2, with described (P ₁+ P ₂)/2 are as the average energy of subcarrier on tested continuous resource piece in described subframe 1 and subframe 2;

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

4. the method for claim 1, is characterized in that, the subframe of described pending interferometry comprises continuous resource piece;

Describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be the subframe index j of i and described interferometry, the subframe of determining pending interferometry is that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The described average energy of asking for subcarrier on described at least one Resource Block comprises: according to formula

$P_j=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of continuous tested Resource Block _jdescribed DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described DwInterfRBStart represents the initial index of the Resource Block of interferometry, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

5. the method for claim 1, is characterized in that, the subframe of described pending interferometry comprises discrete Resource Block;

Describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be that the subframe index of i and described interferometry is 0, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle;

The described average energy of asking for subcarrier on described at least one Resource Block comprises: ask in described subframe 1 and subframe 2 average energy of subcarrier on tested discontinuous Resource Block.

6. method as claimed in claim 5, is characterized in that, described in ask in described subframe 1 and subframe 2 average energy of subcarrier on tested discontinuous Resource Block and comprise:

According to formula $P_1\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{Nsc}}$ The average energy P of subcarrier on each Resource Block in the uplink pilot time slot of calculating subframe 1 ₁(rb);

According to formula

$P_2\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2 ₂(rb);

Ask for P ₁and P (rb) ₂(rb) mean value (P of identical rb index ₁(rb)+P ₂(rb))/2, with described (P ₁(rb)+P ₂(rb))/2 average energies as subcarrier on tested discontinuous Resource Block in described subframe 1 and subframe 2;

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

7. the method for claim 1, is characterized in that, the subframe of described pending interferometry comprises discontinuous Resource Block;

Describedly according to radio frames counter, the interferometry cycle is asked to the result of mould and the subframe index of measurement, determine that the radio frames of pending interferometry and the subframe in described radio frames comprise: if described radio frames counter is asked the result of mould to the interferometry cycle, be the subframe index j of i and described interferometry, the subframe of determining pending interferometry is the subframe that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The described average energy of asking for subcarrier on described at least one Resource Block comprises:

According to formula

$P_j\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of discontinuous tested Resource Block _j(rb), described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

8. an interference detecting apparatus, is characterized in that, described device comprises:

Determination module, for the interferometry cycle being asked to the result of mould and the subframe index of interferometry according to radio frames counter, determine the radio frames of pending interferometry and the subframe in 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 on described at least one Resource Block;

Processing module, for by described average energy and default noise energy threshold value comparison, if described average energy is greater than described default noise energy threshold value, the indication subframe of described pending interferometry being interfered reports.

9. device as claimed in claim 8, is characterized in that, the subframe of described pending interferometry comprises continuous resource piece;

Described determination module comprises that first determines submodule, if described first determines that it is that the subframe index of i and described interferometry is 0 that submodule is asked the result of mould for described frame counter to the interferometry cycle, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle;

The described module of asking for comprises that first asks for submodule, and described first asks for submodule for asking for the average energy of subcarrier on the tested continuous resource piece of described subframe 1 and subframe 2.

10. device as claimed in claim 9, is characterized in that, described first asks for submodule comprises:

The first computing unit, for according to formula

$P_1=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfPRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in the uplink pilot time slot of subframe 1 comprise subcarrier on Resource Block average energy P ₁;

The second computing unit, for according to formula

$P_2=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{(\mathrm{DwInterfDetectionNSymb}-\mathrm{Nsymb}\_\mathrm{UpPTS})*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ The average energy P of subcarrier on one section of tested continuous resource piece in calculating subframe 2 ₂;

The first mean value computation unit, for asking for P ₁and P ₂mean value (P ₁+ P ₂)/2, with described (P ₁+ P ₂)/2 are as the average energy of subcarrier on tested continuous resource piece in described subframe 1 and subframe 2;

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

11. devices as claimed in claim 8, is characterized in that, the subframe of described pending interferometry comprises continuous resource piece;

Described determination module comprises that second determines submodule, if described second determines that it is the subframe index j of i and described interferometry that submodule is asked the result of mould for described radio frames counter to the interferometry cycle, the subframe of determining pending interferometry is the subframe that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The described module of asking for comprises that second asks for submodule, and described second asks for submodule for according to formula

$P_j=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{DwInterfRBStart}*\mathrm{Nsc}}{\overset{(\mathrm{DwInterfRBStart}+\mathrm{DwInterfRBNum})*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{DwInterfRBNum}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of continuous tested Resource Block _jdescribed DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described DwInterfRBStart represents the initial index of tested Resource Block, described DwInterfRBNum represents the number of tested continuous resource piece in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

12. devices as claimed in claim 8, is characterized in that, the subframe of described pending interferometry comprises discrete Resource Block;

Described determination module comprises that the 3rd determines submodule, if the described the 3rd determines that it is that the subframe index of i and described interferometry is 0 that submodule is asked the result of mould for described radio frames counter to the interferometry cycle, the subframe of determining pending interferometry is subframe 1 and subframe 2, and described i is 0 to the arbitrary integer that is less than the interferometry cycle;

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

13. devices as claimed in claim 12, is characterized in that, the described the 3rd asks for submodule comprises:

The 3rd computing unit, for according to formula

$P_1\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{Nsymb}\_\mathrm{UpPTS}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{Nsymb}\_\mathrm{UpPTS}*\mathrm{Nsc}}$ The average energy P of subcarrier on each Resource Block in the uplink pilot time slot of calculating subframe 1 ₁(rb);

The 4th computing unit, for according to formula

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

The average energy P of subcarrier on one section of each tested Resource Block of tested discontinuous Resource Block in calculating subframe 2 ₂(rb);

The second mean value computation unit, for asking for P ₁and P (rb) ₂(rb) mean value (P ₁(rb)+P ₂(rb))/2, with described (P ₁(rb)+P ₂(rb))/2 average energies as subcarrier on tested discontinuous Resource Block in described subframe 1 and subframe 2;

Described Nsmb_UpPTS represents the orthogonal frequency division multiplex OFDM symbolic number comprising in the uplink pilot time slot of subframe 1, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe 1 or subframe 2, described Nsc represents the subcarrier number comprising on each Resource Block, described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement under the subframe index configuration of described interferometry, described d represents to receive l OFDM symbol in signal, the frequency domain value of k subcarrier, described l represents the notation index of d, described k represents the sub-carrier indices of d.

14. devices as claimed in claim 8, is characterized in that, the subframe of described pending interferometry comprises discontinuous Resource Block;

Described determination module comprises that the 4th determines submodule, if the described the 4th determines that it is the subframe index j of i and described interferometry that submodule is asked the result of mould for described radio frames counter to the interferometry cycle, the subframe of determining pending interferometry is the subframe that subframe is numbered j, described i is 0 to the arbitrary integer that is less than the interferometry cycle, and described j is not equal to 0;

The described module of asking for comprises that the 4th asks for submodule, and the described the 4th asks for submodule for according to formula

$P_j\left(\mathrm{rb}\right)=\frac{\underset{l=0}{\overset{\mathrm{DwInterfDetectionNSymb}-1}{\mathrm{\&Sigma;}}}\underset{k=\mathrm{rb}*\mathrm{Nsc}}{\overset{(\mathrm{rb}+1)*\mathrm{Nsc}-1}{\mathrm{\&Sigma;}}}{\left|d(l,k)\right|}^2}{\mathrm{DwInterfDetectionNSymb}*\mathrm{Nsc}}$ Calculate in described subframe j the average energy P of subcarrier on one section of discontinuous tested survey Resource Block _j(rb), described DwInterfDetectionNSymb is illustrated in the OFDM symbolic number of the measurement of the subframe j under the subframe index configuration of described interferometry, described rb represents Resource Block RB index value corresponding in DwInterfRBIdxTb, described DwInterfRBIdxTb is tested discontinuous Resource Block concordance list in described subframe j, described Nsc represents the subcarrier number comprising on each Resource Block, described d represents to receive in signal the frequency domain value of l OFDM symbol, a k subcarrier, described l represents the notation index of d, and described k represents the sub-carrier indices of d.

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