CN104052700B

CN104052700B - A kind of LTE system anti-interference method and device

Info

Publication number: CN104052700B
Application number: CN201410228390.8A
Authority: CN
Inventors: 王新雨
Original assignee: Innofidei Technology Co Ltd
Current assignee: Newpoint Intelligent Technology Group Co ltd
Priority date: 2014-05-27
Filing date: 2014-05-27
Publication date: 2017-07-28
Anticipated expiration: 2034-05-27
Also published as: CN104052700A

Abstract

The invention provides a kind of LTE system anti-interference method and device.Methods described includes：When communication terminal determines that current operating band has interference, the arrival bearing of the interference signal of the detection interference current operating band；The communication terminal adjusts the beam direction received on the current operating band, the interference signal described in null on arrival bearing according to the arrival bearing.The method that the present invention is provided can not only tackle the less arrowband interference of interference range, can also tackle broadband interference.

Description

A kind of LTE system anti-interference method and device

Technical field

The present invention relates to mobile communication technology field, more particularly to a kind of LTE system anti-interference method, and one kind LTE system means for anti-jamming.

Background technology

LTE (Long Term Evolution, Long Term Evolution) system is a kind of wide-band mobile communication system, at present It is widely used, the network service of fast and stable can be provided the user using the electronic equipment of LTE communication standards, has The features such as having receiving velocity height, availability of frequency spectrum height and simple receiver.

Resource allocation is carried out for smallest particles degree with Physical Resource Block (RB) on frequency domain in current LTE system, wherein, one Individual RB includes multiple subcarriers.

For broadband system, due to different UE (User Equipment, user equipment) over the whole width each Interference suffered by frequency band is different, therefore, when base station (Evolved NodeB, eNodeB) carries out scheduling of resource, it is necessary to detect The channel quality condition of Whole frequency band, is dispatched with the selectivity for carrying out frequency band, avoids some frequency bands being interfered.

For example, upstream band SRS (the Sounding Reference that selectively scheduling Main Basiss UE is sent to base station Signal, Sounding Reference Signal) and/or DMRS (Demodulated Reference Signal, demodulated reference signal) Channel estimation is carried out, and by being measured to channel estimation results, obtains and sends SINR (Signal on frequency band The ratio between Interference and Noise Rate, signal and interference noise), the foundation dispatched as band selective works as base Stand when being dispatched to UE, preferably select the high bandwidth assignments of SINR to UE, the frequency for the signal that avoided interference on frequency domain.

Channel disturbance can be divided into arrowband interference and broadband interference, due to affected frequency band distribution model under broadband interference Enclose wider, therefore, broadband interference can not be avoided using such scheme, the less arrowband interference of interference range can only be tackled.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of LTE system anti-interference method, can not only tackle interference The less arrowband interference of scope, can also tackle broadband interference.

Present invention also offers a kind of LTE system means for anti-jamming, to ensure above method application in practice and Realize.

In order to solve the above problems, the invention discloses a kind of LTE system anti-interference method, including：

When communication terminal determines that current operating band has interference, the interference letter of the detection interference current operating band Number arrival bearing；

The communication terminal adjusts the beam direction received on the current operating band according to the arrival bearing, The interference signal described in null on arrival bearing.

Preferably, it is described before the step of the arrival bearing of the interference signal of the detection interference current operating band Method also includes：

It is that broadband interference or arrowband are disturbed to judge the interference, if the interference is broadband interference, perform detection is done The step of arrival bearing for the interference signal for disturbing the current operating band；

It is described to judge that interference is that broadband interference or arrowband interference further comprise：

Count in preset time period, for the interference that each Physical Resource Block included by the current operating band is present Number；

Extract and there is Physical Resource Block of the number of interference more than the 3rd pre-set threshold value, if of the Physical Resource Block extracted Number is more than the 4th pre-set threshold value, it is determined that the interference is broadband interference, if the number of the Physical Resource Block extracted is less than or equal to 4th pre-set threshold value, it is determined that the interference is disturbed for arrowband.

Preferably, methods described also includes：

If the arrowband interference of the interference, and occur in fixed frequency range, then the base station is reported, is being removed by the base station Scheduling of resource is carried out on the frequency domain of the fixed frequency range, or reports the base station, current system bandwidth is adjusted by the base station.

Judge that the interference, for all the period of time interference or part-time section of interference, if the interference is all the period of time interference, is held The step of arrival bearing of the interference signal of the row detection interference current operating band；

It is described to judge that interference is that all the period of time interference or part-time section of interference further comprise：

The maximum of the number of the interference existed is extracted, if the business of the maximum and the preset time period is more than the 5th Pre-set threshold value, then the interference is all the period of time interference, if the business of the maximum and the preset time period is less than or equal to the 5th Pre-set threshold value, then the interference is part-time section of interference.

Preferably, methods described also includes：

If the interference is part-time section and disturbs and be broadband interference, the time that the interference is present is recorded, and report The base station, scheduling of resource is carried out by the base station within the time removed outside the time that the interference is present.

Preferably, methods described also includes：

If the interference is part-time section of interference, and disturbs for interference signal generation in the arrowband of fixed frequency range, then：

The time that the interference is present is recorded, and reports the base station, is removing what the interference was present by the base station Scheduling of resource is carried out in time outside time, and/or, the base station is reported, the fixed frequency range is being removed by the base station Outside frequency range in carry out scheduling of resource；

Or, the base station is reported, current system bandwidth is adjusted by the base station.

Preferably, methods described also includes：

If the interference be part-time section of interference and be the interference signal the interference of frequency unfixed arrowband, record Time that the interference is present, and report the base station, by the base station remove outside the time that the interference is present when It is interior to carry out scheduling of resource.

Preferably, the step of arrival bearing of the interference signal of the detection interference current operating band includes：

The communication terminal receives the cell special reference that the base station is sent；

According to the cell special reference, the incoming wave side of the interference signal of the interference current operating band is judged To.

Preferably, the communication terminal determines that current operating band has interference, including：

For each Physical Resource Block included by the current operating band, the reference signal of the Physical Resource Block is detected Receiving power and Reference Signal Received Quality；

If some Physical Resource Block Reference Signal Received Power is not more than the first pre-set threshold value, and the reference signal is received Quality is not more than the second pre-set threshold value, it is determined that the current operating band where the Physical Resource Block has interference.

Preferably, methods described also includes：

After the preset time period that worked on the current operating band, the communication terminal jumps to pre- with the base station Other frequency bands first arranging, different from the current operating band.

Present invention also offers a kind of LTE system means for anti-jamming, including：

Arrival bearing's detection module, for when communication terminal determines that current operating band has interference, institute to be disturbed in detection State the arrival bearing of the interference signal of current operating band；

Disturbance null module, for the communication terminal according to the arrival bearing, is adjusted in the current operating band The beam direction of upper reception, the interference signal described in null on arrival bearing.

Preferably, described device also includes：

Broadband interference judge module, for judging that the interference is that broadband interference or arrowband are disturbed, if the interference is Broadband interference, then perform arrival bearing's detection module；

The broadband interference judge module further comprises：

First interference number statistic submodule, for counting in preset time period, included by the current operating band The number for the interference that each Physical Resource Block is present；

Second value compares submodule, and the number that there is interference for extracting is more than the physical resource of the 3rd pre-set threshold value Block, if the number of the Physical Resource Block extracted is more than the 4th pre-set threshold value, it is determined that the interference is broadband interference, if extract The number of Physical Resource Block is less than or equal to the 4th pre-set threshold value, it is determined that the interference is disturbed for arrowband.

Preferably, described device also includes frequency domain dispatching module and bandwidth scale module；

The frequency domain dispatching module, for reporting the base station, the frequency domain of the fixed frequency range is being removed by the base station Upper carry out scheduling of resource；

The bandwidth scale module, for reporting the base station, current system bandwidth is adjusted by the base station.

Preferably, the broadband interference judge module, is additionally operable to if it is determined that the interference arrowband is disturbed, and is occurred in fixation Frequency range, then perform the frequency domain dispatching module or bandwidth scale module.

Preferably, described device also includes：

All the period of time disturbs judge module, for judging the interference for all the period of time interference or part-time section of interference, if institute It is all the period of time interference to state interference, then performs arrival bearing's detection module；

The all the period of time interference judge module further comprises：

Second interference number statistic submodule, for counting in preset time period, included by the current operating band The number for the interference that each Physical Resource Block is present；

Third value compares submodule, the maximum of the number for extracting the interference existed, if the maximum and institute State preset time period business be more than the 5th pre-set threshold value, then it is described interference for all the period of time interference, if the maximum with it is described pre- If the business of period is less than or equal to the 5th pre-set threshold value, then the interference is part-time section of interference.

Preferably, described device also includes time domain scheduler module；

The time domain scheduler module, for reporting the base station, the time that the interference is present is being removed by the base station Outside time in carry out scheduling of resource.

Preferably, all the period of time interference judge module, it is all the period of time interference or part-time section to be additionally operable in the interference During interference, broadband interference judge module is performed；

The broadband interference judge module, be additionally operable to it is determined that it is described interference for all the period of time interference, and it is described interference for width Band interference, then perform arrival bearing's detection module；

The broadband interference judge module, be additionally operable to it is determined that it is described interference for all the period of time interference, and it is described interference be dry Disturb signal to occur to disturb in the arrowband of fixed frequency range, then perform the frequency domain dispatching module or bandwidth scale module；

The broadband interference judge module, be additionally operable to it is determined that it is described interference for part-time section interference after, however, it is determined that it is described Disturb as broadband interference, then perform the time domain scheduler module；

The broadband interference judge module, be additionally operable to it is determined that it is described interference for part-time section interference after, however, it is determined that it is described Disturb and occur to disturb in the arrowband of fixed frequency range for interference signal, then perform the time domain scheduler module and/or frequency domain dispatching mould Block, or bandwidth scale module；

The broadband interference judge module, be additionally operable to it is determined that it is described interference for part-time section interference after, however, it is determined that it is described The unfixed arrowband interference of frequency for interference signal is disturbed, then performs the time domain scheduler module.

Preferably, arrival bearing's detection module includes：

Reference signal receiving submodule, the cell-specific reference letter that the base station is sent is received for the communication terminal Number；

Reference signal analyzes submodule, for according to the cell special reference, judging the interference work at present The arrival bearing of the interference signal of frequency band.

Preferably, in addition to interference determining module, for the communication terminal determine current operating band exist interference；

The interference determining module includes：

Reception state detection sub-module, for for each Physical Resource Block included by the current operating band, detection The Reference Signal Received Power and Reference Signal Received Quality of the Physical Resource Block；

First numerical value comparer module, presets if being not more than first for some Physical Resource Block Reference Signal Received Power Threshold values, and the Reference Signal Received Quality is not more than the second pre-set threshold value, it is determined that it is current where the Physical Resource Block There is interference in working band.

Preferably, described device also includes：

Frequency hopper module, after the preset time period that worked on the current operating band, the communication terminal is redirected To other frequency bands being made an appointment with the base station, different from the current operating band.

Compared with prior art, the present invention has advantages below：

According to the embodiment of the present invention, communication terminal determines that current operating band is present after interference, further detection interference letter Number arrival bearing, according to arrival bearing's null interference signal, can not only tackle the interference of interference range less arrowband, also may be used To tackle the broadband interference of frequency band distribution wider range, also, for TD-LTE system (Time Division Long Term Evolution, time-division Long Term Evolution), provide foundation by the interference avoidance of up-downgoing heterogeneite, or up channel.

According to the embodiment of the present invention, different processing modes can also be respectively adopted for different types of interference, can To tackle while various types of interference, the load of communication terminal can be reduced as far as, the waste of resource is reduced.

Brief description of the drawings

Fig. 1 is a kind of flow chart of LTE system anti-interference method embodiment 1 of the invention；

Fig. 2 is a kind of flow chart of LTE system anti-interference method embodiment 2 of the invention；

Fig. 3 is a kind of flow chart of LTE system anti-interference method embodiment 3 of the invention；

Fig. 4 be the embodiment of the present invention an example in LTE system anti-interference method flow chart；

Fig. 5 be the embodiment of the present invention an example in detection interference exist method；

Fig. 6 is a kind of structured flowchart of LTE system means for anti-jamming embodiment 1 of the invention；

Fig. 7 is a kind of structured flowchart of LTE system means for anti-jamming embodiment 2 of the invention；

Fig. 8 is a kind of structured flowchart of LTE system means for anti-jamming embodiment 3 of the invention.

Embodiment

In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is further detailed explanation.

With reference to Fig. 1, a kind of flow chart of LTE system anti-interference method embodiment 1 of the present invention is shown, can specifically be wrapped Include following steps：

Step 101, when communication terminal determines that current operating band has interference, the detection interference current operating band Interference signal arrival bearing.

After communication terminal (UE) access LTE network, base station can trigger the detection of up channel or down channel, when UE needs When scheduled, suitable frequency domain resource is selected to distribute to UE, the transmission for carrying out upstream data or downlink data, work at present Frequency band refers to the current system bandwidth of LTE system, is the whole frequency band of communication terminal work at present.

Communication terminal determines exist on current operating band after interference, further the arrival bearing of detection interference signal.This The arrival bearing of interference signal can be detected in inventive embodiments using any available mode in the prior art.Due to LTE systems System uses intelligent antenna technology, and UE can carry out the detection of arrival bearing in the downlink path of smart antenna.

Smart antenna it is a kind of installed in base station scene bilateral antenna, also known as adaptive antenna array, variable antenna array, Multiple antennas.Smart antenna be substantially the space characteristics difference between the different user using shared same channel resource come Channel multiplication is realized, as long as different using the space characteristics of user's signal of same channel, same time slot and same code word, just The separation of subscriber signal can be realized by airspace filter.Width is carried out by multiple aerial array received signals mutually to weight, Point to, be spatially separating with realizing come the antenna beam required for obtaining.Compared with non-directional antenna, its up, descending chain The antenna gain on road is greatly improved, and reduces transmitted power level, improves signal to noise ratio, effectively overcomes transmission decline Influence.

The cell special reference of down channel according to where the interference signal received can be with estimated disturbance signal Arrival bearing.

Step 102, communication terminal adjust the beam direction received on current operating band, null according to arrival bearing Interference signal on arrival bearing.

To detect interference signal incoming wave have after directionality, can adjust reception of the communication terminal in current operating band Beam direction, i.e., avoid the interference of interference signal by way of adjusting downlink reception wave beam forming.

Specifically, wave beam forming (Beam Forming, BF) is one of core technology of smart antenna, be one kind many The Digital Signal Processing realized in individual aerial array, using useful signal and interference signal in arrival bearing DOA Difference on spatial channel characteristics such as (Directional of Arricial, angle of arrival), by setting appropriate to aerial array Weighted value, be spatially segregated from useful signal and interference signal, realize reduction inter-user interference, the mesh of lifting system capacity 's.

The maximum principle of power of the beamforming algorithm based on uplink receiving signal, in the case where not interfering with, using this Algorithm can obtain preferable performance, but in the presence of interference, the signal received by communication terminal will be by shadow Ring.

In the embodiment of the present invention, it is to avoid the purpose of interference is all interference signals for the arrival bearing that null is detected, When adjusting downlink reception wave beam forming, weighted value is reset for aerial array, adjustment receives the direction of wave beam so that descending Wave beam forming is located in the kernel of interference signal vector matrix, i.e. the weighted value in interference signal direction is zero, null interference letter Number.

According to the embodiment of the present invention, the less arrowband interference of interference range can be not only tackled, for frequency band distribution scope Wider broadband interference, can also find the arrival bearing of its interference signal, and the direction of wave beam, null frequency band are received by adjusting The interference signal of wider range, also, compared to prior art, for TD-LTE system, the embodiment of the present invention need not be analyzed The signal quality of up channel or down channel, therefore the interference avoidance of up channel is can not only be applied to, it can also apply In the interference avoidance of down channel.

In the embodiment of the present invention, it is further preferred that communication terminal can be by detecting reference signal on present band Reception state determines that current operating band has interference.

Reference signal (Reference Signal, RS), also referred to as pilot signal, are the physics letters that LTE protocol is defined Number, it is to be supplied to receiving terminal to be used for a kind of signal of channel estimation or channel detection by transmitting terminal, reference signal is not held in itself Data are carried, for example, (Frequency Division Multiple Address, frequency division is more for the up use Single Carrier Frequency Division Multiple Access of LTE Location) technology, reference signal and upstream data are to use TDM (Time-Division Multiplexing, time division multiplexing) mode It is multiplexed together.

In LTE system, UE sends uplink reference signals to base station, and uplink reference signals are divided into Sounding Reference Signal (SRS) and demodulated reference signal (DMRS) etc., base station sends downlink reference signal to UE, and downlink reference signal is divided into cell-specific Reference signal (Cell-Specific Reference Signal, CRS), UE DRS (Dedicated Reference Signal)s and MBSFN (Multicast Broadcast Single Frequency Network, multicast single frequency network) DRS (Dedicated Reference Signal) etc..

In actual network environment, the reference signal of serving cell is mainly disturbed by two parts, and a part is from adjoining Interference of the reference signal of cell to the reference signal of serving cell, downlink physical data letter of the another part from abutting subdistrict Interference of the road to the reference signal of serving cell.

By detecting that the reception state of reference signal can be determined on current operating band with the presence or absence of interference.Due to LTE The bandwidth of system is that one RB is minimum bandwidth unit in LTE system, therefore, for reference signal using RB as measurement Measurement refers to that terminal measures the reference signal on multiple RB.

Specifically, for downlink reference signal, received in the downstream bands that UE can be distributed base station on multiple RB Downlink reference signal detected that, because uplink reference signals by UE are sent to base station, UE can not be directly to up with reference to believing Number reception state directly detected, therefore can by base station detect uplink reference signals reception state, by base station according to Analysis result with the presence or absence of interference and is fed back to UE by Analysis of test results.

Analysed whether that in the presence of the method for interference appointing for prior art can be used according to the reception state of reference signal on RB Where method, the present invention this is not limited.

Preferably, step 101 can include：

Sub-step S11, for each Physical Resource Block included by current operating band, detect that reference of Physical Resource Block is believed Number receiving power and Reference Signal Received Quality；

If the Reference Signal Received Power of sub-step S12, some Physical Resource Block is not more than the first pre-set threshold value, and reference Signal receiving quality is not more than the second pre-set threshold value, it is determined that the current operating band where Physical Resource Block has interference.

After communication terminal access LTE network, base station can be to the UE sending measuring configuration informations in connected state, to inform UE is on relevant informations such as current measurement object, report configurations, including the configuration of triggering measurement.According to LTE36.331 Agreement, when current base station is configured to UE sending measurings, triggering measurement has two options, i.e. RSRP (Reference Signal Receiving Power, Reference Signal Received Power) and RSRQ (Reference Signal Receiving Quality, ginseng Examine signal receiving quality).If the RSRP value and RSRQ value obtained by UE measurements meet the particular kind of relationship of corresponding thresholding, UE can inform measurement result to base station reporting measurement reports, in order to which base station is next according to the progress of the information decision of measurement report The operation of step, if for example, the corresponding event of measurement report that UE is reported is the related event of switching, base station will initiate switching Flow.

RSRP is performance number of the reference signal of base station at UE, and UE may infer that channel situation according to this RSRP, The larger then channel of RSRP numerical value is preferably, on the contrary poor, equally, and the larger then channel of RSRQ numerical value is preferably, on the contrary poor.It is of the invention real Apply in example, UE is detected after the RSRP of each Physical Resource Block value and RSRQ value, can by both values respectively with preset value It is compared, and judges current operating band with the presence or absence of interference according to comparative result.In the embodiment of the present invention, setting first is pre- If threshold values and the second pre-set threshold value, (i.e. less than or equal to) first default valve is not more than when the RSRP of some Physical Resource Block value Value and when RSRQ value is not more than the second pre-set threshold value, it is determined that the current operating band where Physical Resource Block has interference.

In the embodiment of the present invention, it is further preferred that step 102 can include：

Sub-step S21, communication terminal receive the cell special reference that base station is sent.

Sub-step S22, according to cell special reference, judge the incoming wave side of the interference signal of interference current operating band To.

Arrival bearing's estimation can be using existing MUSIC (multiple signal classification algorithm) algorithms and ESPRIT (by rotation Constant technology estimates signal parameter) algorithm etc..Most classical super-resolution DOA estimation method is MUSIC algorithms, and its basic thought is The covariance matrix of aerial array output data is subjected to Eigenvalues Decomposition, so that it is empty to obtain signal subspace corresponding with component of signal Between and component of signal just intersecting noise subspace, the direction of signal is then estimated using the orthogonality of the two subspaces； ESPRIT algorithms are the algorithms most in use that a kind of arithmetic speed is very fast, estimation accuracy is higher, utilize two identical translation array receiveds The covariance matrix of signal carries out generalized eigenvalue decomposition, and then obtains the high-resolution estimation of target direction of arrival.

In concrete implementation, base station can receive the arrival bearing for the interference signal that multiple terminals are uploaded respectively, be in The signal intensity of the terminal of cell diverse location is different, the dtr signal received by the terminal in boundary, what it was detected Interference signal direction is simultaneously unreliable, therefore, it can be directed to the different confidence levels of the terminal setting in diverse location, example in advance Such as, signal in cell is preferably divided into 6 grades with poor position, higher confidence is set for the preferable position of signal Degree, sets relatively low confidence level, by the degree of reliability of the reporting information by terminal in diverse location for the preferable position of signal Carry out quantitative management.

For there is each RB on the frequency band of interference on frequency band, the feelings of each terminal each terminal return on the RB are counted Condition, for example, being worked in some cell has 10 terminals, wherein 8 terminals are reported has interference on the RB, root respectively first The position range belonging to it is determined according to the location of 8 terminals, the confidence level determined for the position range is regard as the end The confidence level at end, the confidence level of 8 terminals is added and, 2 terminals not reported are designated as 0, for each RB statistical results, if being more than Preset value, can further carry out the processing of interference avoidance, conversely, not dealing with then, so as to more according to the type of interference Interference avoidance is carried out exactly.

In down channel, the signal for the base station that communication terminal is received is man-to-man relation, can disturbed In the estimation in direction, the embodiment of the present invention, estimating for interference radiating way can be carried out by detecting descending cell special reference Meter, determines the arrival bearing of the interference signal of downstream bands.And in up channel, base station is received from multiple different directions The signal of communication terminal, it is impossible to carry out the estimation of interference radiating way.In various LTE systems, the up-downgoing channel of TD-LTE system is Communicated on the same frequency band.Therefore, by up-downgoing heterogeneite, or up channel interference avoidance provide according to According to the down channel interference radiating way of determination can be regard as up channel interference radiating way for TD-LTE.

With reference to Fig. 2, a kind of flow chart of LTE system anti-interference method embodiment 2 of the present invention is shown, can specifically be wrapped Include following steps：

Step 201, communication terminal determine that current operating band has interference.

Step 202, judge interference for broadband interference or arrowband interference, if broadband interference then performs step 203, if Arrowband is disturbed, then performs step 205.

In the present embodiment, before the arrival bearing of detection interference signal, broadband interference can be defined as first or narrow Band interference, then, then can be with if arrowband is disturbed from interference is avoided by way of null interference signal if broadband interference By the way of other avoid interference, the mode of the selectivity scheduling of such as background technology midband.

It is further preferred that step 202 can include：

In sub-step S31, statistics preset time period, the interference that each Physical Resource Block included by current operating band is present Number.

There is Physical Resource Block of the number more than the 3rd pre-set threshold value of interference in sub-step S32, extraction, if the physics extracted The number of resource block is more than the 4th pre-set threshold value, it is determined that disturb as broadband interference, if the number of the Physical Resource Block extracted is small In equal to the 4th pre-set threshold value, it is determined that disturb and disturbed for arrowband.

Determine that current operating band is present after interference, each Physical Resource Block is judged respectively with the presence or absence of interference, and unite respectively Meter is in preset time period, the number for the interference that each Physical Resource Block is present.

When the number for the interference that the number and each Physical Resource Block of the Physical Resource Block that there is interference are present exceedes necessarily During thresholding, then it is believed that interference is broadband interference.

The number that the Physical Resource Block that there is interference can be directed to sets the 3rd pre-set threshold value, is deposited for each Physical Resource Block The number of interference the 4th pre-set threshold value is set, when the number that there is interference is more than the Physical Resource Block of the 4th pre-set threshold value When number is more than three pre-set threshold values, it is determined that interference is broadband interference, when judging, first determine whether that Physical Resource Block has interference Number whether be more than the 3rd pre-set threshold value, the Physical Resource Block that will be greater than the 3rd pre-set threshold value is found out, and counts lookup The number of the Physical Resource Block gone out, if number is more than the 4th pre-set threshold value, it is determined that disturb as broadband interference, if the physics extracted The number of resource block is less than or equal to the 4th pre-set threshold value, it is determined that disturbs and is disturbed for arrowband.

The arrival bearing of step 203, the interference signal of detection interference current operating band.

Step 204, communication terminal adjust the beam direction received on current operating band, null according to arrival bearing Interference signal on arrival bearing.

In concrete implementation, may not there is no directionality because of interference signal or the reason such as signal is weaker, inspection is not measured The arrival bearing of interference signal, then can with without any processing, wait next hop period avoided by way of frequency hopping by The frequency domain of interference.

If the interference of step 205, arrowband occurs in fixed frequency range, reporting base station, the frequency of fixed frequency range is being removed by base station Scheduling of resource, or reporting base station are carried out on domain, current system bandwidth is adjusted by base station.

The type of interference can be sent in the frequency domain dispatching and bandwidth scale of step 205, during reporting base station to base station and is done The position disturbed, the avoidance further disturbed by base station according to the information.

In last embodiment, no matter broadband interference and arrowband interference can be by detecting the incoming wave side of interference signal To null interference signal, from unlike last embodiment, in the present embodiment, being used not for broadband interference and arrowband interference Same processing mode, arrowband disturbs the frequency range that can be avoided interference by the way of being avoided in the prior art by frequency domain dispatching, It can be avoided interference frequency range by changing system bandwidth, time-frequency scheduling in base station can only allow shared channel to avoid being disturbed, background Frequency band selection is carried out by SINR in technology, the interference avoidance of shared channel is also only used for, by contrast, system bandwidth is changed It can be used for shared channel, can also allow PCFICH (Physical Control Format Indicator Channel, thing Manage control format indicate channel), (Physical Hybrid ARQ Indicator Channel, physical mixed is automatic by PHICH Retransmission indicating chanel), PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel), PUCCH Control channels such as (Physical Uplink Control CHannel, physical uplink control channel) is also avoided by dry Disturb.Specifically,, can be direct in frequency domain resource scheduling when interference signal to occur in the arrowband interference of fixed frequency range The frequency domain for avoiding the frequency range carries out scheduling of resource, and now communication terminal can re-start PDSCH channels with reporting base station (Physical Downlink Shared Channel, Physical Downlink Shared Channel), PUSCH channels (PUSCH Physical Uplink Shared Channel, Physical Uplink Shared Channel) scheduling of resource, on the frequency domain for be not affected by interference distribute money Source, makes system be operated in undisturbed frequency range, and as communication terminal dispenses the frequency domain resource of the fixed frequency range.Also may be used With reporting base station panntographic system bandwidth, the bandwidth of current system is adjusted by base station, the frequency domain being interfered is avoided.

In concrete implementation, however, it is determined that disturb and disturbed for arrowband, but the simultaneously arrowband interference of on-fixed period, then it can adopt Handled, can not also be processed with the avoidance mode of broadband interference, wait next hop period to be kept away by way of frequency hopping Open the frequency domain for receiving interference.

In the embodiment of the present invention, it is preferable that can also include：

Communication terminal jumps to other frequency bands being made an appointment with base station, different from current operating band.

Communication terminal can avoid the interference signal from influenceing by jumping to other different from the frequency band of current operating band, In concrete implementation, frequency hopping processing is the random frequency hopping for having certain rule, can be according to the frequency hopping pattern arranged with base station (hopping pattern) is jumped on other frequency bands specified, and other modes can also be taken to carry out frequency hopping.

In concrete implementation, the step can it is determined that current operating band exist interference the step of after perform, Can be it is determined that being performed before the step of current operating band has interference, preferred latter approach, former in the embodiment of the present invention Because being can to avoid prolonged interference signal to influence by frequency hopping, it is to avoid interference time is oversize to communication terminal and base station The influence that communication band is come.

Frequency hopping needs base station and communication terminal synchronising frequency hopping, and base station and communication terminal are mounted on GPS (Global Positioning System, global positioning system) clock, frequency hopping can be synchronized in the time of both sides' agreement.

In the present embodiment, change in embodiment 1 for various types of interference by the way of null interference signal, It can be handled for broadband interference and arrowband interference using different processing modes, can preferably tackle different type Interference while, can be reduced as far as the load of communication terminal, reduce the waste of resource.

Wherein, for broadband interference, communication terminal determines that current operating band is present after interference, further detection interference letter Number arrival bearing, according to arrival bearing's null interference signal, can not only tackle the interference of interference range less arrowband, also may be used To tackle the broadband interference of frequency band distribution wider range, also, for TD-LTE system, by up-downgoing heterogeneite, or The interference avoidance of up channel provides foundation.

With reference to Fig. 3, a kind of flow chart of LTE system anti-interference method embodiment 3 of the present invention is shown, can specifically be wrapped Include following steps：

Step 301, communication terminal determine that current operating band has interference.

Step 302, judge interference for all the period of time interference or part-time section interference, if all the period of time interference, then perform step Rapid 303, if part-time section of interference, then perform step 304.

From unlike last embodiment, in the present embodiment, also judging whether disturb is all the period of time interference, for all the period of time Interference and part-time section of interference use different processing modes.

Preferably, determine that all the period of time can include the step of interference：

In sub-step S41, statistics preset time period, the interference that each Physical Resource Block included by current operating band is present Number.

Sub-step S42, extract the interference existed number maximum, if the business of maximum and preset time period is more than the Five pre-set threshold values, then interference is all the period of time interference, if the business of the maximum and the preset time period is pre- less than or equal to the 5th If threshold values, then the interference is part-time section of interference.

All the period of time interference refers to there is interference in the most of the time counted in communication terminal.In the embodiment of the present invention, Determine whether that all the period of time is disturbed by the way that whether the number of the interference in preset time period exceedes certain thresholding, pass through statistics The number of interference present in each Physical Resource Block, finds out maximum therein, maximum is divided by with preset time period, Shang Yue Greatly, then illustrate in preset time period, the number disturbed present on the frequency band is more, interference is more probably all the period of time interference, if Business is more than the 5th pre-set threshold value, it is determined that for all the period of time interference.

After step 303, determination interference is all the period of time interference, it is that broadband interference or arrowband are disturbed to determine whether interference, If broadband interference, then step 305 is performed, if arrowband is disturbed, then perform step 307.

After step 304, determination interference is part-time section of interference, it is that broadband interference or arrowband are dry to determine whether interference Disturb, if broadband interference, then perform step 308, if arrowband is disturbed, then perform step 309.

The arrival bearing of step 305, the interference signal of detection interference current operating band.

Step 306, communication terminal adjust the beam direction received on current operating band, null according to arrival bearing Interference signal on arrival bearing.

If the interference signal of step 307, arrowband interference occurs in fixed frequency range, reporting base station is being removed admittedly by base station Determine to carry out scheduling of resource on the frequency domain of frequency range, or reporting base station, current system bandwidth is adjusted by base station.

The time that step 308, record interference are present, and reporting base station, removed by base station outside the time that interference is present Time in carry out scheduling of resource.

Step 308 when domain scheduling in, during reporting base station can to base station send interference type and interference position, by The avoidance that base station is further disturbed according to the information.

Obtain after the time that interference is present, the avoidance that can be in several ways disturbed in the time, if interference For part-time section of interference, then the time that preferably can be existed according to interference carries out jamproof processing, non-existent disturbing Time need not then do any processing, so as to reduce the processing task of communication terminal, mitigate the load of communication terminal, save Resource.

In the embodiment of the present invention, it is preferable that can when domain scheduling by way of avoided, i.e., reported by communication terminal The time that base station interference is present, scheduling of resource is carried out within the time removed outside the time for disturbing presence by base station, so as to keep away Open the time being interfered, this anti-interference mode is very simple, carry out other processing without communication terminal, can mitigate logical Believe the load of terminal.

Due to determining after interference, the time that may interfere with passes by, herein, and the time that interference is present specifically refers to interference The periodic time existed, specifically, obtain after the time that current interference is present, interference time is determined whether by base station In which subframe, radio frames or longer time section whether there is rule row, if in the presence of, interference exist it is periodic when In, interfering subframe, radio frames or longer time section are removed, interference avoidance is carried out.

Step 309, whether be interference signal occur in the arrowband of fixed frequency range disturb, if interference is if determining whether to disturb Interference signal occurs to disturb in the arrowband of fixed frequency range, then performs step 310, if interference is unfixed for the frequency of interference signal Arrowband is disturbed, then performs step 311.

The time that step 310, record interference are present, and reporting base station, removed by base station outside the time that interference is present Time in carry out scheduling of resource and/or remove fixed frequency range outside frequency range in carry out scheduling of resource, or reporting base station, by Base station adjusts current system bandwidth.

If interference is part-time section of interference, and to occur to disturb in the arrowband of fixed frequency range, because interference occurs in fixation Frequency range arrowband interference, can be preferred to use it is anti-interference using frequency domain dispatching or bandwidth scale by the way of, due to interference for it is non-entirely Period is disturbed, can be anti-interference using time domain scheduling mode.

Specifically, using when domain scheduling by the way of when, communication terminal record interference exist time, it is determined that interference class Type, carries out scheduling of resource, so as to avoid the time being interfered by base station within the time removed outside the time for disturbing presence. When by the way of frequency domain dispatching, base station re-starts scheduling of resource, distributes resource on the frequency domain for not receiving interference, makes system Be operated in the frequency range for not receiving interference, base station can also panntographic system bandwidth, by base station adjust current system bandwidth, avoid receive To the frequency domain of interference.

The time that step 311, record interference are present, reporting base station is being removed outside the time that interference is present by base station Scheduling of resource is carried out in time.

If interference is part-time section of interference, and is the unfixed arrowband interference of frequency of interference signal, then can not be using frequency The mode of domain scheduling is anti-interference, the mode of domain scheduling when can be preferred to use, and avoids the time being interfered.

In the present embodiment, change in embodiment 1 for various types of interference by the way of null interference signal, The type of interference can be determined first, disturbed for broadband interference and arrowband, and all the period of time interference and part-time section of interference etc. Different types of interference is handled using different processing modes, while can tackle various types of interference, The load of communication terminal can be reduced as far as, the waste of resource is reduced.

According to embodiment, for the broadband interference of all the period of time, communication terminal determines that current operating band is present after interference, enters One step detects the arrival bearing of interference signal, according to arrival bearing's null interference signal, can not only tackle interference range smaller Arrowband interference, the broadband interference of frequency band distribution wider range can also be tackled, also, for TD-LTE system, above and below Row heterogeneite, or the interference avoidance of up channel provide foundation.

In order that the clearer and more definite this programme of those skilled in the art, passes through LTE system of the specific example to the embodiment of the present invention System anti-interference method is illustrated, and LTE system anti-interference method in an example of the embodiment of the present invention is given with reference to Fig. 4 Flow chart, specifically may include steps of：

Step 1, execution processing method 3.

Step 2, perform detection method 1.

Step 3, judge interference whether be all the period of time interference, if all the period of time disturb, then perform step 4, if part-time Section interference, then perform step 12.

Step 4, further determine whether as broadband interference, if all the period of time broadband interference, then step 5 is performed, if entirely Period arrowband interference, then perform step 9.

Step 5, perform detection method 3.

Step 6, judge interference signal whether have directionality, if interference signal is directional perform step 7, if interference Signal does not have directionality, then performs step 8.

Step 7, execution processing method 4.

Step 8, without any processing, the next hop period of wait.

Step 9, determine whether fixed narrow disturb, if fixed narrow disturb, then perform step 10, if on-fixed is narrow Band interference, then perform step 11.

Step 10, execution processing method 2 or 5.

Step 11, without any processing, the next hop period of wait.

Step 12, further determine whether as broadband interference, if part-time section of broadband interference, then perform step 13, if For part-time section of arrowband interference, then step 14 is performed.

Step 13, execution processing method 1.

Step 14, further determine whether to disturb for fixed narrow, if the interference of part-time section of fixed narrow, then perform step Rapid 15, if part-time section of on-fixed arrowband interference, then perform step 16.

Step 15, execution processing method 1 and/or 2, or 5.

Step 16, execution processing method 1.

Wherein, each detection method and processing method are described as follows：

Detection method 1：Current operating band is judged with the presence or absence of interference, as shown in figure 5, giving the embodiment of the present invention The method that detection interference is present in one example.

As shown in figure 5, certain RB RSRP and RSRQ is calculated, when RSRP and RSRQ are compared with pre-set threshold value respectively, It can first determine whether whether RSRP is more than the first pre-set threshold value thd1, if, it is determined that in the absence of interference, if it is not, then further Judge whether RSRQ is more than the second pre-set threshold value thd2, if, it is determined that in the absence of interference, if not, it is determined that there is interference.

Detection method 2：UE detection interference DOA

UE is estimated by the downlink smart antenna CRS DOA for carrying out descending interference signal, judges whether interference has direction Property.

Interference processing 1：When domain scheduling avoid.

Interference processing 2：Frequency domain dispatching is avoided.

Interference processing 3：Frequency hopping processing, avoids prolonged interference signal from influenceing by jumping to other frequencies.

Interference processing 4：The interference arrival bearing detected according to detection method 2, the wave beam side that the descending BF of adjustment UE are received To null interference radiating way signal.

Interference processing 5：The frequency range for being not affected by interference is searched, panntographic system bandwidth makes system be operated in the frequency for not receiving interference Duan Shang, so up, down channel will not be subject interference effect.

Wherein, can be every (using 0.5ms as statistical unit) using in timing statisticses T when distinguishing broadband interference and arrowband interference There is the number of interference in RB, be set to Sum_J (n), wherein n=1~N, and N is the frequency domain RB numbers included in system bandwidth, if Number Num_B in Sum_J (1~N) more than thresholding thd3 is more than thresholding thd4, then can determine that interference is done for frequency domain broadband Disturb, otherwise, then disturbed for arrowband.

When distinguishing all the period of time interference and part-time section of interference, it can be determined that Sum_J (n) maximum and preset time period Ratio, such as max (Sum_J)/(T/0.5ms) is all the period of time interference when ratio is more than thresholding thd5, conversely, then to be non- All the period of time is disturbed.

For embodiment of the method, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but this area Technical staff should know that the present invention is not limited by described sequence of movement, because according to the present invention, some steps can To carry out using other orders or simultaneously.Secondly, those skilled in the art should also know, described in this description to implement Example belongs to preferred embodiment, and involved action and the module not necessarily present invention are necessary.

With reference to Fig. 6, a kind of structured flowchart of LTE system means for anti-jamming embodiment 1 of the present invention is shown, specifically can be with Including with lower module：

Arrival bearing's detection module 401, for when communication terminal determines that current operating band has interference, detection to be disturbed The arrival bearing of the interference signal of current operating band.

Disturbance null module 402 is connected with arrival bearing's detection module 401, and disturbance null module 402 is used for communication terminal According to arrival bearing, the interference signal on the beam direction received on current operating band, null arrival bearing is adjusted.

In the embodiment of the present invention, arrival bearing's detection module includes：

Reference signal receiving submodule, the cell special reference that base station is sent is received for communication terminal.

Reference signal analysis submodule is connected with reference signal receiving submodule and disturbance null module 402, reference signal Analyzing submodule is used for according to cell special reference, judges the arrival bearing of the interference signal of interference current operating band.

According to the embodiment of the present invention, communication terminal determines that current operating band is present after interference, further detection interference letter Number arrival bearing, according to arrival bearing's null interference signal, can not only tackle the interference of interference range less arrowband, also may be used To tackle the broadband interference of frequency band distribution wider range, also, for TD-LTE system, by up-downgoing heterogeneite, or The interference avoidance of up channel provides foundation.

With reference to Fig. 7, a kind of structured flowchart of LTE system means for anti-jamming embodiment 2 of the present invention is shown, specifically can be with Including with lower module：

Determining module 501 is disturbed, determines that current operating band has interference for communication terminal.

Broadband interference judge module 502 is connected with interference determining module 501, and broadband interference judge module 502 is used to determine Disturb as broadband interference, however, it is determined that disturb as broadband interference, then perform arrival bearing's detection module 503 and disturbance null module 504, however, it is determined that disturb and disturbed for arrowband, and occur in fixed frequency range, then to perform frequency domain dispatching module 505 or bandwidth scale module 506。

Arrival bearing's detection module 503 is connected with broadband interference judge module 502, and arrival bearing's detection module 503 is used for The arrival bearing of the interference signal of detection interference current operating band.

Disturbance null module 504 is connected with arrival bearing's detection module 503, and disturbance null module 504 is used for communication terminal According to arrival bearing, the interference signal on the beam direction received on current operating band, null arrival bearing is adjusted.

Frequency domain dispatching module 505 is connected with broadband interference judge module 502, and frequency domain dispatching module 505 is used for reporting base station, By base station scheduling of resource is carried out on the frequency domain for removing fixed frequency range.

Bandwidth scale module 506 is connected with broadband interference judge module 502, and bandwidth scale module 506 is used for reporting base station, Current system bandwidth is adjusted by base station.

In the embodiment of the present invention, it is preferable that interference determining module 501 includes：

Reception state detection sub-module, for for each Physical Resource Block included by current operating band, detecting physics The Reference Signal Received Power and Reference Signal Received Quality of resource block.

First numerical value comparer module is connected with reception state detection sub-module and arrival bearing's detection module 502, and first If numerical value comparer module is not more than the first pre-set threshold value for some Physical Resource Block Reference Signal Received Power, and with reference to letter Number quality of reception is not more than the second pre-set threshold value, it is determined that the current operating band where Physical Resource Block has interference.

In the embodiment of the present invention, it is preferable that broadband interference judge module 502 further comprises：

First interference number statistic submodule is connected with interference determining module 501, and the first interference number statistic submodule is used In in statistics preset time period, the number for the interference that each Physical Resource Block included by current operating band is present；

Second value compares submodule and is connected with the first interference number statistic submodule and arrival bearing's detection module 503, Second value, which compares submodule, to be used to extract the Physical Resource Block for being more than the 3rd pre-set threshold value in the presence of the number disturbed, if extract The number of Physical Resource Block is more than the 4th pre-set threshold value, it is determined that disturb as broadband interference, if of the Physical Resource Block extracted Number is less than or equal to the 4th pre-set threshold value, it is determined that the interference is disturbed for arrowband.

In the embodiment of the present invention, it is preferable that frequency hopper module can also be included, for being worked on the current operating band After preset time period, the communication terminal jump to it is being made an appointment with the base station, different from the current operating band Other frequency bands.

With reference to Fig. 8, a kind of structured flowchart of LTE system means for anti-jamming embodiment 3 of the present invention is shown, specifically can be with Including with lower module：

Determining module 601 is disturbed, determines that current operating band has interference for communication terminal.

All the period of time disturbs judge module 602 to be connected with interference determining module 601, and all the period of time interference judge module 602 is used for It is determined that interference is all the period of time interference, when interference is all the period of time interference or part-time section of interference, broadband interference judge module is performed.

Broadband interference judge module 603 is adjusted with all the period of time interference judge module 602, arrival bearing's detection module 604, frequency domain Degree module 606, bandwidth scale module 607 and time domain scheduler module 608 are connected, and broadband interference judge module 603 is used to determine to do Disturb as broadband interference, and it is determined that interference is all the period of time interference, and interference is broadband interference, then performs arrival bearing's detection module 604；Disturbed it is determined that disturbing for all the period of time, and interference is disturbed for interference signal generation in the arrowband of fixed frequency range, then performs frequency Domain scheduling module 606 or bandwidth scale module 607；After it is determined that disturbing as part-time section of interference, however, it is determined that disturb and done for broadband Disturb, then perform time domain scheduler module 608；After it is determined that disturbing as part-time section of interference, however, it is determined that disturb and occur for interference signal Disturbed in the arrowband of fixed frequency range, then perform time domain scheduler module 608 and/or frequency domain dispatching module 606, or bandwidth scale module 607；After it is determined that disturbing as part-time section of interference, however, it is determined that disturb the unfixed arrowband interference of frequency for interference signal, then Perform time domain scheduler module 608.

Arrival bearing's detection module 604 is connected with broadband interference judge module 603, and arrival bearing's detection module 604 is used for The arrival bearing of the interference signal of detection interference current operating band.

Disturbance null module 605 is connected with arrival bearing's detection module 604, and disturbance null module 605 is used for according to incoming wave Interference signal on direction, the beam direction that adjustment communication terminal is received on current operating band, null arrival bearing.

Frequency domain dispatching module 606 is connected with broadband interference judge module 603, and frequency domain dispatching module 606 is used for reporting base station, By base station scheduling of resource is carried out on the frequency domain for removing fixed frequency range；

Bandwidth scale module 607 is connected with broadband interference judge module 603, and bandwidth scale module 607 is used for reporting base station, Current system bandwidth is adjusted by base station.

Time domain scheduler module 608 is connected with broadband interference judge module 603, and time domain scheduler module 608 is used for reporting base station, By base station scheduling of resource is carried out within the time removed outside the time that interference is present.

In the embodiment of the present invention, it is further preferred that all the period of time interference judge module 602 may further include：

Second interference number statistic submodule is connected with interference determining module 601, and the second interference number statistic submodule is used In in statistics preset time period, the number for the interference that each Physical Resource Block included by current operating band is present.

Third value compares submodule and is connected with the second interference number statistic submodule and broadband interference judge module 603, Third value compares the maximum that submodule is used to extract the number of the interference existed, if the business of maximum and preset time period is big In the 5th pre-set threshold value, then interference is all the period of time interference, if the business of the maximum and the preset time period is less than or equal to the Five pre-set threshold values, then the interference is part-time section of interference.

Because described device embodiment essentially corresponds to the embodiment of the method shown in earlier figures 1, Fig. 2 and Fig. 3, therefore this implementation Not detailed part in the description of example, may refer to the related description in previous embodiment, does not just repeat herein.

The present invention can be used in numerous general or special purpose computing system environments or configuration.For example：Personal computer, service Device computer, handheld device or portable set, laptop device, multicomputer system, the system based on microprocessor, top set Box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer including any of the above system or equipment DCE etc..

The present invention can be described in the general context of computer executable instructions, such as program Module.Usually, program module includes performing particular task or realizes routine, program, object, the group of particular abstract data type Part, data structure etc..The present invention can also be put into practice in a distributed computing environment, in these DCEs, by Remote processing devices connected by communication network perform task.In a distributed computing environment, program module can be with Positioned at including in the local and remote computer-readable storage medium including storage device.

Herein, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, from And cause the process, method, article or the equipment that include a series of key elements not only to include those key elements, but also including not bright Other key elements really listed, or also include for this process, method, article or the intrinsic key element of equipment.Do not having In the case of more limitations, the key element limited by sentence "including a ...", it is not excluded that the process including the key element, Also there is other identical element in method, article or equipment.

Above to a kind of LTE system anti-interference method provided by the present invention, and, a kind of LTE system means for anti-jamming It is described in detail, specific case used herein is set forth to the principle and embodiment of the present invention, and the above is real The explanation for applying example is only intended to the method and its core concept for helping to understand the present invention；Simultaneously for the general technology of this area Personnel, according to the thought of the present invention, will change in specific embodiments and applications, in summary, this theory Bright book content should not be construed as limiting the invention.

Claims

1. a kind of LTE system anti-interference method, it is characterised in that including：

When communication terminal determines that current operating band has interference, it is that broadband interference or arrowband are disturbed to judge the interference, And judge the interference for all the period of time interference or part-time section of interference；

If the interference is broadband interference, or the interference is all the period of time interference, then the current operating band is disturbed in detection The arrival bearing of interference signal；

The communication terminal adjusts the beam direction received on the current operating band, null according to the arrival bearing The interference signal on the arrival bearing.

2. according to the method described in claim 1, it is characterised in that described to judge that the interference is that broadband interference or arrowband are dry Disturb including：

Count in preset time period, the number for the interference that each Physical Resource Block included by the current operating band is present；

Extract and there is Physical Resource Block of the number of interference more than the 3rd pre-set threshold value, if the number of the Physical Resource Block extracted is big In the 4th pre-set threshold value, it is determined that the interference is broadband interference, if the number of the Physical Resource Block extracted is less than or equal to the 4th Pre-set threshold value, it is determined that the interference is disturbed for arrowband.

3. according to the method described in claim 1, it is characterised in that also include：

If the interference is arrowband interference, and is occurred in fixed frequency range, then the base station is reported, it is described in removing by the base station Scheduling of resource is carried out on the frequency domain of fixed frequency range, or reports the base station, current system bandwidth is adjusted by the base station.

4. according to the method described in claim 1, it is characterised in that described to judge that the interference is also non-complete for all the period of time interference Period interference includes：

The maximum of the number of the interference existed is extracted, if the business of the maximum and the preset time period is more than the 5th and preset Threshold values, then the interference is all the period of time interference, if the business of the maximum and the preset time period is less than or equal to the 5th and preset Threshold values, then the interference is part-time section of interference.

5. according to the method described in claim 1, it is characterised in that also include：

If the interference is part-time section and disturbs and be broadband interference, the time that the interference is present is recorded, and report described Base station, scheduling of resource is carried out by the base station within the time removed outside the time that the interference is present.

6. according to the method described in claim 1, it is characterised in that also include：

The time that the interference is present is recorded, and reports the base station, the time that the interference is present is being removed by the base station Outside time in carry out scheduling of resource, and/or, report the base station, removed by the base station outside the fixed frequency range Frequency range in carry out scheduling of resource；

7. according to the method described in claim 1, it is characterised in that also include：

If the interference be part-time section of interference and be the interference signal the interference of frequency unfixed arrowband, record is described The time existed is disturbed, and reports the base station, by the base station within the time removed outside the time that the interference is present Carry out scheduling of resource.

8. according to the method described in claim 1, it is characterised in that the interference signal of the detection interference current operating band The step of arrival bearing, includes：

According to the cell special reference, the arrival bearing of the interference signal of the interference current operating band is judged.

9. according to the method described in claim 1, it is characterised in that it is dry that the communication terminal determines that current operating band is present Disturb, including：

For each Physical Resource Block included by the current operating band, detect that the reference signal of the Physical Resource Block is received Power and Reference Signal Received Quality；

If some Physical Resource Block Reference Signal Received Power is not more than the first pre-set threshold value, and the Reference Signal Received Quality No more than the second pre-set threshold value, it is determined that the current operating band where the Physical Resource Block has interference.

10. according to the method described in claim 1, it is characterised in that also include：

After the preset time period that worked on the current operating band, the communication terminal is jumped to be appointed in advance with the base station Other frequency bands fixed, different from the current operating band.

11. a kind of LTE system means for anti-jamming, it is characterised in that including：

Interference type judge module, for when communication terminal determines that current operating band has interference, judging that the interference is Broadband interference or arrowband interference, and judge the interference for all the period of time interference or part-time section of interference；

Arrival bearing's detection module, if the interference is broadband interference, or the interference is all the period of time interference, then detection interference institute State the arrival bearing of the interference signal of current operating band；

Disturbance null module, for the communication terminal according to the arrival bearing, adjustment connects on the current operating band The beam direction of receipts, the interference signal described in null on arrival bearing.

12. device according to claim 11, it is characterised in that the interference type judges that mould includes：

First interference number statistic submodule, for counting in preset time period, each thing included by the current operating band Manage the number for the interference that resource block is present；

Second value compares submodule, and the number that there is interference for extracting is more than the Physical Resource Block of the 3rd pre-set threshold value, if The number of the Physical Resource Block of extraction is more than the 4th pre-set threshold value, it is determined that the interference is broadband interference, if the physics extracted The number of resource block is less than or equal to the 4th pre-set threshold value, it is determined that the interference is disturbed for arrowband.

13. device according to claim 11, it is characterised in that described device also includes frequency domain dispatching module and bandwidth contracts Amplification module；

The frequency domain dispatching module, it is enterprising in the frequency domain for removing the fixed frequency range by the base station for reporting the base station Row scheduling of resource；

14. device according to claim 13, it is characterised in that the interference type judge module, be additionally operable to if it is determined that The interference arrowband interference, and occur in fixed frequency range, then perform the frequency domain dispatching module or bandwidth scale module.

15. device according to claim 11, it is characterised in that the interference type judge module includes：

Second interference number statistic submodule, for counting in preset time period, each thing included by the current operating band Manage the number for the interference that resource block is present；

Third value compare submodule, for extract exist interference number maximum, if the maximum with it is described pre- If the business of period be more than the 5th pre-set threshold value, then it is described interference for all the period of time interference, if the maximum with it is described default when Between section business be less than or equal to the 5th pre-set threshold value, then it is described interference for part-time section interference.

16. device according to claim 11, it is characterised in that described device also includes time domain scheduler module；

The time domain scheduler module, for reporting the base station, is being removed outside the time that the interference is present by the base station Time in carry out scheduling of resource.

17. the device according to any one of claim 13 or 16, it is characterised in that

The interference type judge module, be additionally operable to it is determined that it is described interference for all the period of time interference, and it is described interference for interference letter Number occur fixed frequency range arrowband disturb, then perform the frequency domain dispatching module or bandwidth scale module；

The interference type judge module, be additionally operable to it is determined that it is described interference for part-time section interference after, however, it is determined that the interference For broadband interference, then the time domain scheduler module is performed；

The interference type judge module, be additionally operable to it is determined that it is described interference for part-time section interference after, however, it is determined that the interference Occur to disturb in the arrowband of fixed frequency range for interference signal, then perform the time domain scheduler module and/or frequency domain dispatching module, or Bandwidth scale module；

The interference type judge module, be additionally operable to it is determined that it is described interference for part-time section interference after, however, it is determined that the interference For the unfixed arrowband interference of frequency of interference signal, then the time domain scheduler module is performed.

18. device according to claim 11, it is characterised in that arrival bearing's detection module includes：

Reference signal receiving submodule, the cell special reference that the base station is sent is received for the communication terminal；

Reference signal analyzes submodule, for according to the cell special reference, judging the interference current operating band Interference signal arrival bearing.

19. device according to claim 11, it is characterised in that also including interference determining module, for the communication eventually End determines that current operating band has interference；

The interference determining module includes：

Reception state detection sub-module, for for each Physical Resource Block included by the current operating band, detection to be described The Reference Signal Received Power and Reference Signal Received Quality of Physical Resource Block；

First numerical value comparer module, if being not more than the first default valve for some Physical Resource Block Reference Signal Received Power Value, and the Reference Signal Received Quality is not more than the second pre-set threshold value, it is determined that the current work where the Physical Resource Block Make frequency band and there is interference.

20. device according to claim 11, it is characterised in that also include：

Frequency hopper module, after the preset time period that worked on the current operating band, the communication terminal jump to Other frequency bands that the base station is made an appointment, different from the current operating band.