CN106131854A - Base station and signaling method based on frequency spectrum perception technology - Google Patents
Base station and signaling method based on frequency spectrum perception technology Download PDFInfo
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- 238000005259 measurement Methods 0.000 claims abstract description 16
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- H—ELECTRICITY
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Abstract
The embodiment of the present invention provides a kind of base station and signaling method based on frequency spectrum perception technology, and the method includes: the noise power ratio of the upward signal of all mandate frequencies in frequency spectrum perception commercial measurement community, when each detection cycle arrives, is applied in base station；If the noise power ratio that described base station detects the N number of frequency in continuous N frequency is more than threshold value, then in the down channel broadcasting blocks information of this M frequency, in order to indicate the transmission frequency blocking information described in terminal to be sent by halt signal；Afterwards, the signal transmission of this M frequency is suspended in described base station.The application present invention, can improve the utilization rate of the frequency spectrum resource of industry wireless communication system, evades interference band and ensures communication quality, promotes system reliability.
Description
Technical field
The present invention relates to technical field of radio, send out particularly to a kind of base station and signal based on frequency spectrum perception technology
Delivery method.
Background technology
Along with developing rapidly of wireless technology, mobile high-speed data network, radio multimedium applies contour data rate requirements
Wireless application is widely deployed, and number of wireless users is explosive growth, and wireless frequency spectrum proposes new requirement.And wireless frequency
Spectrum resource is as rare, the non-renewable strategic resource of a country, and by various countries' regulatory authorities unified allocation of resources, each row is each
Industry is commenced business application in the frequency spectrum of granting authorization.Frequency spectrum resource, once authorized appropriation, indicates business usable radio resources
How challenge that is fixing, that increase in a large number for new demand and the user of spectrum utilization in the face of new business new technique, utilize limited
Frequency spectrum resource meet various wireless application spectrum requirement and become current popular research topic.
Current domestic existing several electric power wireless communication systems, the communication such as traditional 230MHz data radio station, Mobitex
Agreement is simple, it is difficult to ensure the availability of frequency spectrum；The system communication protocol such as WiMAX, McWill, TD-LTE are perfect, but network knot
Structure is complicated, equipment power dissipation is big, is especially difficult to obtain unified mandate frequency, is not particularly suited for the big rule of industry wireless communication system
Mould, Unified Generalization.In the distribution of domestic existing radio spectrum resources, clearly distributing to power consumer for the frequency spectrum of load monitoring is
40 discrete frequencies in 223MHz-235MHz band limits, amount to the frequency spectrum resource of 1MHz bandwidth, also authorize in this frequency range simultaneously
Other industry some discrete frequency uses for business data transmission, therefore the letter of the communication terminal work of electric power 230MHz frequency range
, both having there is the monkey chatter of other industry user's data radio station in road circumstance complication, there is again power consumer and bear control data radio station
Band internal interference.
Therefore, it is necessary to improve the utilization rate of the frequency spectrum resource of industry wireless communication system further, evade interference band
Ensure communication quality, promote system reliability.
Summary of the invention
In view of this, the present invention proposes a kind of base station and communication means based on frequency spectrum perception technology thereof, to improve industry
The utilization rate of the frequency spectrum resource of wireless communication system, evades interference band and ensures communication quality, promote system reliability.
A kind of based on frequency spectrum perception technology the signaling method provided based on the above-mentioned purpose present invention, including:
Base station is when each detection cycle arrives, and in application frequency spectrum perception commercial measurement community, all mandate frequencies is up
The noise power of signal；
If described base station detects that the noise power of the N number of frequency in continuous N frequency is more than threshold value, then at this M frequency
The down channel broadcasting blocks information of point, in order to indicate the transmission frequency blocking information described in terminal to be sent by halt signal；
Afterwards, the signal transmission of this M frequency is suspended in described base station；
Wherein, M is the natural number less than all mandate frequency points, and N is the natural number less than M.
Further, after the signal transmission of this M frequency is suspended in described base station, also include:
If described base station detects that this M frequency reaches recovery condition, then the signal recovering this M frequency sends；
Wherein, the noise power of R frequency during described recovery condition is specially this M frequency is less than described threshold value；Institute
Stating R is less than or equal to M and the natural number more than M-N.
According to another aspect of the present invention, additionally provide a kind of base station, including:
Noise module, for when each detection cycle arrives, all in application frequency spectrum perception commercial measurement community
Authorize the noise power ratio of the upward signal of frequency；
Block determination module, for the testing result according to described noise module, however, it is determined that in continuous N frequency
The noise power ratio of N number of frequency is more than threshold value, then be judged to this M frequency block frequency；
Wireless resource scheduling module, for the down channel broadcasting blocks information at described obstruction frequency, in order to indicate end
Halt signal is sent by the transmission frequency holding described obstruction information；Afterwards, the signal suspending this M frequency sends.
Further, described obstruction determination module is additionally operable to the testing result according to described noise module, however, it is determined that this M
Individual frequency reaches recovery condition, then this M frequency is judged to normal frequency；And
Described wireless resource scheduling module uses normal frequency to carry out signal transmission；
Wherein, the noise power of R frequency during described recovery condition is specially this M frequency is less than described threshold value；Institute
Stating R is less than or equal to M and the natural number more than M-N.
In technical solution of the present invention, in application frequency spectrum perception commercial measurement community, the upward signal of all mandate frequencies makes an uproar
Acoustical power ratio, compares the threshold value of the noise power ratio of measurement with setting, thus identifies usable spectrum and be disturbed frequency
Spectrum；And then, if it is determined that the noise power ratio of the N number of frequency gone out in continuous N frequency is more than threshold value, then concede one group of M frequency
Interface-free resources, the down channel broadcasting blocks information that this M frequency is blocked；Thus evade interference, to reduce right as far as possible
The interference of other system, ensures the signal transmission quality of native system simultaneously, promotes system reliability, improves industry radio communication system
The utilization rate of the frequency spectrum resource of system.
Further, when measuring noise power ratio, mainly consider out-of-band interference power, clearly to carry outer different system to band
Interior interference, such that it is able to block the frequency that out-of-band interference is bigger pointedly, thus both avoids carrying interior system to send
Signal be interfered, it is possible to avoid the signal disturbing of different system outer to band, make to keep away between the wireless communication system of different industries
Exempt to interfere, realize harmonious coexistence.
Further, the 223MHz-235MHz band limits for the wireless communication system of power industry carries out frequency spectrum resource
Planning, it is considered to avoiding the third order intermodulation between frequency to affect, planning department's part-frequency point is unavailable, and is divided into 3 bunches of frequencies, thus fills
Divide and utilize frequency spectrum resource, avoid interfering between frequency simultaneously the most as far as possible.
Aspect and advantage that the present invention adds will part be given in the following description, and these will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or that add aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially with easy to understand, wherein:
Fig. 1 is the flow chart of the signaling method based on frequency spectrum perception technology of the embodiment of the present invention；
Fig. 2 is that schematic diagram is evaded in the radio band interference of the power industry of the embodiment of the present invention；
Fig. 3 is the spectral contrast figure before and after 4 frequency carrier aggregation power amplifiers transmittings of the embodiment of the present invention；
Fig. 4 is the subcarrier distribution schematic diagram of the down channel of the embodiment of the present invention；
Fig. 5 is the subcarrier distribution schematic diagram of the up channel of the embodiment of the present invention；
Fig. 6 is the inside of base station structural representation of the embodiment of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein " ", "
Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that use in the description of the present invention arranges
Diction " including " refers to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or adds
Other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that when we claim unit
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connections or wireless couple.Used herein arrange
Diction "and/or" includes that one or more list the whole of item or any cell being associated combines with whole.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology), have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Also should
Be understood by, those terms defined in such as general dictionary, it should be understood that have with in the context of prior art
The meaning that meaning is consistent, and unless by specific definitions as here, otherwise will not use idealization or the most formal implication
Explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal unit " had both included wireless communication
The equipment of number receptor, it only possesses the equipment of wireless signal receiver of non-emissive ability, includes again receiving and launching hardware
Equipment, its have on bidirectional communication link, can carry out two-way communication reception and launch hardware equipment.This equipment
May include that honeycomb or other communication equipments, it has single line display or multi-line display or does not has multi-line to show
The honeycomb of device or other communication equipments；PCS (Personal Communications Service, PCS Personal Communications System), it can
Process with combine voice, data, fax and/or its communication ability；PDA (Personal Digital Assistant, individual
Digital assistants), it can include the access of radio frequency receiver, pager, the Internet/intranet, web browser, notepad, day
Go through and/or GPS (Global Positioning System, global positioning system) receptor；Conventional laptop and/or palm
Type computer or other equipment, its have and/or include the conventional laptop of radio frequency receiver and/or palmtop computer or its
His equipment." terminal " used herein above, " terminal unit " can be portable, can transport, be arranged on the vehicles (aviation,
Sea-freight and/or land) in, or be suitable for and/or be configured at local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal unit " can also is that communication terminal, on
Network termination, music/video playback terminal, such as, can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or there is the mobile phone of music/video playing function, it is also possible to it is the equipment such as intelligent television, Set Top Box.
It should be noted that the statement of all uses " first " and " second " is for distinguishing two in the embodiment of the present invention
The entity of individual same names non-equal or the parameter of non-equal, it is seen that " first " " second ", only for the convenience of statement, should not
Being interpreted as the restriction to the embodiment of the present invention, this is illustrated by subsequent embodiment the most one by one.
The present inventor it is considered that utilize the frequency spectrum perception technology of cognitive radio authorize frequency effectively to identify can
With frequency spectrum be disturbed frequency spectrum, can utilize frequency spectrum resource to a greater extent, improve the utilization rate of frequency spectrum resource；And in frequency spectrum perception
On the basis of, evade interference and ensure communication quality, promote system reliability.
Cognitive radio technology is the communication technology of a kind of novelty, and it can relax existing shareholder's spectrum management mode effectively
The frequency spectrum scarcity problem that causes is it is considered to be one of most potential communication technology of future generation.Frequency spectrum perception is as wireless
One of key technology, it can detect the frequency spectrum cavity-pocket of surrounding space, provide available frequency spectrum for cognition wireless user.
Frequency spectrum perception technology is applied to industry wireless communication system by the present inventor, and provides a kind of base accordingly
Signaling method and base station in frequency spectrum perception technology.Describe technical scheme below in conjunction with the accompanying drawings in detail.
The signaling method flow chart based on frequency spectrum perception technology that the invention provides, as it is shown in figure 1, include as follows
Step:
All mandate frequencies in frequency spectrum perception commercial measurement community, when each detection cycle arrives, are applied in S101: base station
The noise power ratio of upward signal；
Specifically, base station is periodically detected the noise power ratio of upward signal of each mandate frequency；I.e. a detection week
In phase, the noise power ratio of upward signal authorizing frequency each in community is measured by base station applies frequency spectrum perception technology.
It is true that the inventive method is primarily to evade the interference of the interior different system of band；Therefore, noise power ratio is being carried out
During measurement, the main noise considering out-of-band interference；It is thus preferable to, base station, when each detection cycle arrives, calculates each mandate
The bandwidth power value of frequency, and then measure the out-of-band interference power of each mandate frequency；For one authorizes frequency, by this frequency
The ratio of the out-of-band interference power of point and the bandwidth power value of this frequency is as the noise of the upward signal of this frequency measured
Power ratio.
Calculate noise power according to out-of-band interference power, can clearly with outer different system to the interference in band, thus can
Pointedly the frequency that out-of-band interference is bigger to be blocked, thus the signal sent with interior system had both been avoided to be interfered,
Also the signal disturbing of different system outer to band can be avoided.
Such as, the electromagnetic environment of power industry 223MHz-235MHz band limits is complicated, both there is other industry high-power
, there is again the interference of power industry self data radio station, especially power industry for negative control monitoring in data radio station monkey chatter
Data radio station interference more serious, electric power wireless communication system needs to realize harmonious coexistence with negative control data radio station, needs at frequency
Carry out interference on the basis of spectrum perception to evade.
Whether the noise power of the upward signal that each mandate frequency is detected in S102: base station exceedes threshold value；
Specifically, base station by the noise power ratio of each upward signal authorizing frequency measured respectively with set in advance
The threshold value of noise compares, and noise power ratio exceedes the mandate frequency alternately frequency of threshold value.Further, it is also possible to calculate
Effective band internal power of alternative frequency；Alternative frequency is carried out band external blocking conversion；Alternative frequency is carried out peak interference process；
The frequency that alternative frequency collection internal interference is minimum is set effective marker bit.
S103: if base station detects that the noise power ratio of the N number of frequency in continuous N frequency is more than threshold value, then at this M
The down channel broadcasting blocks information of frequency.
Specifically, base station, if it is determined that the alternative frequency number in continuous N frequency is more than or equal to N, i.e. judges to detect continuous N
The noise power ratio of the N number of frequency in individual frequency is more than threshold value, then in the down channel broadcasting blocks information of this M frequency, use
To block the transmission frequency of information described in instruction terminal by halt signal transmission.
Should dodge the when that base station having perceived other system interference at once, allow other System Priority transmit, in order to the greatest extent
Amount reduces interference to other system, once can allow the interface-free resources of one group of frequency.Base station can be with perception up channel
No normally, and whether terminal can be normal with perception down channel, when base station determines that up channel interference ratio is relatively big, continuous N occurs
The when that the noise power ratio of the N number of frequency in individual frequency being more than threshold value, then carry out the cells block of this M frequency, at this M
The down channel broadcasting blocks information of frequency.
It is preferred that the minimum unit blocked is M frequency, i.e. when there being N number of frequency to detect that noise ratio is bigger in M frequency
Situation, then this M frequency is blocked；Wherein, M is the natural number less than all mandate frequency points, and N is the nature less than M
Number, M and N specifically can be arranged according to practical situation by technical staff；Such as, arranging M is 5, and N is 3.
When base station detects up the obstruction when, down channel may or can use, and base station can continue to make
Block information with down channel broadcast cell on the frequency blocked, but do not start any business.Block signal only sends one
Secondary, after transmission, the most whole blocked frequency group does not send any signal (include reference signal, synchronize, broadcast).Fig. 2 shows
Schematic diagram is evaded in the radio band interference of power industry.
Further, after the signal transmission of this M frequency is suspended in base station, if detecting, this M frequency reaches recovery condition, then
The signal recovering this M frequency sends；Wherein, the noise power of R frequency during described recovery condition is specially this M frequency
Less than described threshold value；Described R is less than or equal to M and the natural number more than M-N.
Recover after the signal of this M frequency sends terminal can perception up channel voluntarily, after reaching recovery condition, directly
This M frequency sends uplink information；Or, base station sends recovery information notice terminal at the down channel of this M frequency,
Terminal sends uplink information again on this M frequency.
More preferably, it is contemplated that make full use of frequency spectrum resource, avoiding interfering between frequency, it is right to need simultaneously the most as far as possible
The planning of frequency is studied.It is true that when two or more interference signals being closer to useful signal frequency ratio enter simultaneously
When entering receiver front end circuit, under nonlinear circuit (such as High frequency amplification, mixing etc.) acts on, create new frequency content
May fall in the IF passband of receiver, thus cause the interference to receiver.The nonlinear circuit of receiver can be seen
Making a network, the transmission function of this network can represent with following power series:
H (s)=A0+A1h(s)+A2h2(s)+A3h3(s)+…+Anhn(s)
Though even side's components such as two, four, six can produce new frequency content in transmission function, but it will not fall into useful letter
Number passband, interference will not be produced；Odd side's components such as only three, five, seven just can cause Intermodulation Interference, and is called three rank
Intermodulation, fifth order intermodulation, seven rank intermodulation etc..Exponent number is the highest, and the amplitude of the interference signal of generation is the least, and what therefore impact was maximum is
Third order intermodulation is disturbed.And the logarithm transmitting the coefficient A3 of cube item in function and the ratio of the coefficient A1 of fundametal compoment is used to weighing apparatus
The ability of amount network anti-third order intermodulation interference, is referred to as " intermodulation response vulnerability to jamming ".Being not difficult to find out, the generation of Intermodulation Interference is by two
Individual factor determines: one is two input nonlinearities signals that existence and useful signal have certain frequency relation；Another is then
It it is the existence of nonlinear component in transmission function.Fig. 3 is the spectral contrast figure before and after 4 frequency carrier aggregation power amplifiers are launched,
Can be seen that and do not consider that third order intermodulation affects, after power amplifier output, bring serious band stray.
For special 40 the discrete frequencies of power system, it is contemplated that owing to there is third order intermodulation impact, therefore plan part
Frequency is unavailable, and the present invention intends analyzing spuious impact according to 3 bunches of frequency up-downgoings, finally determines the parameter of frequency such as
Under:
The a width of 25kHz of band of each discrete frequency, is wherein assigned 10 subcarriers, a width of 2kHz of each sub-carrier bin；
Descending available frequency is following three groups:
First group: in 223.025-225MHz frequency range, be distributed 15 frequencies；
Second group: in 228.025-230MHz frequency range, be distributed 10 frequencies；
3rd group: in 230.025-232MHz frequency range, be distributed 15 frequencies；
The subcarrier of down channel distributes as shown in Figure 4: vacate one between every 5 continuous print subcarriers in same frequency
The bandwidth of subcarrier；The bandwidth of two subcarriers is vacated between odd number frequency with follow-up adjacent even number frequency；Even number frequency with
The bandwidth of a subcarrier is vacated between follow-up adjacent odd number frequency.
Determine that up available frequency is following three groups:
First group: in 223.025-225MHz frequency range, be distributed 15 frequencies；
Second group: in 228.025-230MHz frequency range, be distributed 10 frequencies；
3rd group: in 230.025-232MHz frequency range, be distributed 15 frequencies；
The subcarrier of up channel distributes as shown in Figure 5: a frequency includes 10 continuous print subcarriers；Even number frequency
With the bandwidth vacating 3 subcarriers between follow-up adjacent odd number frequency；Between odd number frequency with follow-up adjacent even number frequency
Vacate the bandwidth of two subcarriers.
In the solution of the present invention, signaling method based on frequency spectrum perception technology based on above-mentioned offer, the present invention is also
Provide a kind of intelligent base station internal structure block diagram, as shown in Figure 6, including: noise module 601, block determination module
602, wireless resource scheduling module 603.
Noise module 601, for when each detection cycle arrives, applies institute in frequency spectrum perception commercial measurement community
There is the noise power ratio of the upward signal authorizing frequency；Specifically, noise module 601 when each detection cycle arrives,
The out-of-band interference power of the upward signal of all mandate frequencies in application frequency spectrum perception commercial measurement community；For each in community
Authorize frequency, using up as this frequency of out-of-band interference power and the ratio of the bandwidth power of this frequency of this frequency measured
The noise power ratio of signal.
Block determination module 602 for the testing result according to described noise module, however, it is determined that in continuous N frequency
The noise power ratio of N number of frequency more than threshold value, then this M frequency is judged to obstruction frequency；Further, determination module is blocked
602 always according to the testing result of described noise module, if determining that this M frequency reaches recovery condition, then by this M follow-up
Individual frequency is judged to normal frequency.
Wireless resource scheduling module 603 is for the down channel broadcasting blocks information at described obstruction frequency, in order to indicate
Halt signal is sent by the transmission frequency blocking information described in terminal；Afterwards, the signal suspending this M frequency sends；Further, nothing
Line scheduling of resource module 603 uses normal frequency, is not judged to that the frequency blocking frequency carries out signal transmission.
The concrete function of each module of above-mentioned base station realizes being referred to the above-mentioned letter based on frequency spectrum perception technology mentioned
In number sending method, each step implements.
In technical solution of the present invention, in application frequency spectrum perception commercial measurement community, the upward signal of all mandate frequencies makes an uproar
Acoustical power ratio, compares the threshold value of the noise power ratio of measurement with setting, thus identifies usable spectrum and be disturbed frequency
Spectrum；And then, if it is determined that the noise power ratio of the N number of frequency gone out in continuous N frequency is more than threshold value, then concede one group of M frequency
Interface-free resources, the down channel broadcasting blocks information that this M frequency is blocked；Thus evade interference, to reduce right as far as possible
The interference of other system, ensures the signal transmission quality of native system simultaneously, promotes system reliability, improves industry radio communication system
The utilization rate of the frequency spectrum resource of system.
Further, when measuring noise power ratio, mainly consider out-of-band interference power, clearly to carry outer different system to band
Interior interference, such that it is able to block the frequency that out-of-band interference is bigger pointedly, thus both avoids carrying interior system to send
Signal be interfered, it is possible to avoid the signal disturbing of different system outer to band, make to keep away between the wireless communication system of different industries
Exempt to interfere, realize harmonious coexistence.
Further, the 223MHz-235MHz band limits for the wireless communication system of power industry carries out frequency spectrum resource
Planning, it is considered to avoiding the third order intermodulation between frequency to affect, planning department's part-frequency point is unavailable, and is divided into 3 bunches of frequencies, thus fills
Divide and utilize frequency spectrum resource, avoid interfering between frequency simultaneously the most as far as possible.
Those skilled in the art of the present technique are appreciated that the present invention includes relating to perform in operation described herein
One or more equipment.These equipment can be required purpose and specialized designs and manufacture, or can also include general
Known device in computer.These equipment have storage computer program within it, and these computer programs are optionally
Activate or reconstruct.Such computer program can be stored in equipment (such as, computer) computer-readable recording medium or be stored in
In being suitable to store e-command and be coupled to any kind of medium of bus respectively, described computer-readable medium include but not
Be limited to any kind of dish (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, only
Read memorizer), RAM (Random Access Memory, memorizer immediately), EPROM (Erasable Programmable
Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable
Programmable Read-Only Memory, EEPROM), flash memory, magnetic card or light line card
Sheet.It is, computer-readable recording medium includes by equipment (such as, computer) with the form storage that can read or any Jie of transmission information
Matter.
Those skilled in the art of the present technique be appreciated that can with computer program instructions realize these structure charts and/or
The combination of the frame in each frame in block diagram and/or flow graph and these structure charts and/or block diagram and/or flow graph.This technology is led
Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other
The processor of programmable data processing method realizes, thus by computer or the process of other programmable data processing methods
Device performs the scheme specified in structure chart disclosed by the invention and/or block diagram and/or the frame of flow graph or multiple frame.
Those skilled in the art of the present technique be appreciated that the various operations discussed in the present invention, method, in flow process
Step, measure, scheme can be replaced, changed, combined or deleted.Further, there is discussed in the present invention each
Other steps in kind operation, method, flow process, measure, scheme can also be replaced, changed, reset, decomposed, combined or deleted.
Further, of the prior art have and the step in the various operations disclosed in the present invention, method, flow process, measure, scheme
Can also be replaced, changed, reset, decomposed, combined or deleted.
The above is only the some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a signaling method based on frequency spectrum perception technology, it is characterised in that including:
Base station when each detection cycle arrives, the upward signal of all mandate frequencies in application frequency spectrum perception commercial measurement community
Noise power ratio；
If the noise power ratio that described base station detects the N number of frequency in continuous N frequency is more than threshold value, then at this M frequency
Down channel broadcasting blocks information, in order to indicate the transmission frequency that blocks information described in terminal to be sent by halt signal；
Afterwards, the signal transmission of this M frequency is suspended in described base station；
Wherein, M is the natural number less than all mandate frequency points, and N is the natural number less than M.
Method the most according to claim 1, it is characterised in that after the signal transmission of this M frequency is suspended in described base station, also
Including:
If described base station detects that this M frequency reaches recovery condition, then the signal recovering this M frequency sends；
Wherein, the noise power of R frequency during described recovery condition is specially this M frequency is less than described threshold value；Described R is
Less than or equal to M and the natural number more than M-N.
Method the most according to claim 1, it is characterised in that the upward signal of all mandate frequencies in described measurement community
Noise power ratio, specifically include:
For mandate frequency each in community, base station is by the bandwidth power of the out-of-band interference power of this frequency measured with this frequency
Ratio as the noise power ratio of the upward signal of this frequency.
4. according to the arbitrary described method of claim 1-3, it is characterised in that described mandate frequency includes 223-235MHz frequency range
40 interior discrete frequencies；And M is specially 5.
Method the most according to claim 4, it is characterised in that a width of 25KHz of band of each discrete frequency, is wherein assigned
10 subcarriers, a width of 2KHz of each sub-carrier bin；And
15 frequencies it are distributed in 223-225MHz frequency range；
10 frequencies it are distributed in 228-229MHz frequency range；
15 frequencies it are distributed in 230-232MHz frequency range；
The subcarrier of the down channel of described discrete frequency is assigned as: vacate between every 5 continuous print subcarriers in same frequency
The bandwidth of one subcarrier；The bandwidth of two subcarriers is vacated between odd number frequency with follow-up adjacent even number frequency；Even number frequency
Point and the bandwidth vacating a subcarrier between follow-up adjacent odd number frequency；
The subcarrier of the up channel of described discrete frequency is assigned as: a frequency includes 10 continuous print subcarriers；Even number
The bandwidth of 3 subcarriers is vacated between frequency with follow-up adjacent odd number frequency；Odd number frequency and follow-up adjacent even number frequency
Between vacate the bandwidth of two subcarriers.
6. a base station, it is characterised in that including:
Noise module, for when each detection cycle arrives, applies all mandates in frequency spectrum perception commercial measurement community
The noise power ratio of the upward signal of frequency；
Block determination module, for according to the testing result of described noise module, however, it is determined that N number of in continuous N frequency
The noise power ratio of frequency is more than threshold value, then be judged to this M frequency block frequency；
Wireless resource scheduling module, for the down channel broadcasting blocks information at described obstruction frequency, in order to indicate terminal institute
Halt signal is sent by the transmission frequency stating obstruction information；Afterwards, the signal suspending this M frequency sends.
Base station the most according to claim 6, it is characterised in that
Described obstruction determination module is additionally operable to the testing result according to described noise module, however, it is determined that this M frequency reaches
Recovery condition, then be judged to normal frequency by this M frequency；And
Described wireless resource scheduling module uses normal frequency to carry out signal transmission；
Wherein, the noise power of R frequency during described recovery condition is specially this M frequency is less than described threshold value；Described R is
Less than or equal to M and the natural number more than M-N.
Base station the most according to claim 6, it is characterised in that
Described noise module, specifically for when each detection cycle arrives, applies institute in frequency spectrum perception commercial measurement community
There is the out-of-band interference power of the upward signal authorizing frequency；For mandate frequency each in community, by the band of this frequency of measurement
The ratio of the bandwidth power of outer jamming power and this frequency is as the noise power ratio of the upward signal of this frequency.
9. according to the arbitrary described base station of claim 6-8, it is characterised in that described mandate frequency includes 223-235MHz frequency range
40 interior discrete frequencies；And M is specially 5.
Base station the most according to claim 9, it is characterised in that a width of 25kHz of band of each discrete frequency, wherein distributes
There are 10 subcarriers, a width of 2kHz of each sub-carrier bin；And
15 frequencies it are distributed in 223-225MHz frequency range；
10 frequencies it are distributed in 228-229MHz frequency range；
15 frequencies it are distributed in 230-232MHz frequency range；
The subcarrier of the down channel of described discrete frequency is assigned as: vacate between every 5 continuous print subcarriers in same frequency
The bandwidth of one subcarrier；The bandwidth of two subcarriers is vacated between odd number frequency with follow-up adjacent even number frequency；Even number frequency
Point and the bandwidth vacating a subcarrier between follow-up adjacent odd number frequency；
The subcarrier of the up channel of described discrete frequency is assigned as: a frequency includes 10 continuous print subcarriers；Even number
The bandwidth of 3 subcarriers is vacated between frequency with follow-up adjacent odd number frequency；Odd number frequency and follow-up adjacent even number frequency
Between vacate the bandwidth of two subcarriers.
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