CN107743314A - A kind of data transmission method, device and the device with store function - Google Patents
A kind of data transmission method, device and the device with store function Download PDFInfo
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- CN107743314A CN107743314A CN201710788231.7A CN201710788231A CN107743314A CN 107743314 A CN107743314 A CN 107743314A CN 201710788231 A CN201710788231 A CN 201710788231A CN 107743314 A CN107743314 A CN 107743314A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of data transmission method, device and the device with store function, wherein this method includes：The frequency spectrum resource service condition being periodically detected in working band, to judge in the working band with the presence or absence of the frequency resource taken by other business, if in the presence of, then obtain discrete schedulable resource frequency band, the schedulable resource frequency band does not include occupied frequency resource, and by continuous arrangement on discrete schedulable resource band logical, form logic continuously adjustabe degree frequency spectrum resource, carry out data transmission on the logic continuously adjustabe degree frequency spectrum resource, device is handled the signal of transmission after filtering, wherein the wave filter corresponds to occupied frequency resource, if it is not present, then carried out data transmission using all frequency spectrum resources in working band.By the above-mentioned means, the present invention can reduce the influence to data transfer on unscheduled frequency spectrum resource, the availability of frequency spectrum is improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of data transmission method, device and the dress with store function
Put.
Background technology
The situation of one section of frequency spectrum resource is shared for the business of multiple industries now, it is existing for coordinated allocation frequency spectrum resource
Have and two kinds of technical schemes in technology be present, one of which technical scheme is in multi-carrier systems, using not dispatching by other rows
The mode for the frequency resource that the business of industry takes, avoid influenceing the business of other industry；Another technical solution is to share this
Frequency spectrum resource is divided into equally spaced subband, and each subband has guard band, using carrier aggregation technology by multiple subbands
After being polymerize, the business for distributing to an industry uses, and so as to produce larger transmission bandwidth, improves laser propagation effect.
In above-mentioned the first string, because frequency spectrum isolation effect is poor, larger secondary lobe leakage between subcarrier be present, even if
Need the frequency spectrum resource that avoids unscheduled, the side-lobe energy that Adjacent resource leakage comes is still larger, will be in unscheduled resource
The data transfer of other industry business impacts.In second scheme, there is guard band, the availability of frequency spectrum in each subband
It is low.
The content of the invention
The present invention solves the technical problem of provide a kind of data transmission method, device and the dress with store function
Put, can solve the problem that the problem of influenceing in unscheduled resource data transfer and the low availability of frequency spectrum in the prior art.
In order to solve the above technical problems, one aspect of the present invention is：A kind of data transmission method is provided, wrapped
Include：The frequency spectrum resource service condition being periodically detected in working band, to judge to whether there is by other in the working band
The frequency resource that business takes, other business are the business for being authorized to use the working band outside pre-set business；If in the presence of,
Discrete schedulable resource frequency band is then obtained, schedulable resource frequency band does not include occupied frequency resource；Will be discrete adjustable
Continuous arrangement on resource band logical is spent, forms logic continuously adjustabe degree frequency spectrum resource；Provided in the logic continuously adjustabe degree frequency spectrum
Carry out data transmission on source, device is handled the signal of transmission after filtering, and wherein the wave filter corresponds to occupied frequency resource；If
It is not present, then is carried out data transmission using all frequency spectrum resources in the working band.
In order to solve the above technical problems, another technical solution used in the present invention is：A kind of data transmission device is provided,
Including：The processor and telecommunication circuit of interconnection；When processor works, for realizing data transmission method as described above.
In order to solve the above technical problems, another technical scheme that the present invention uses is：There is provided one kind has store function
Device, be stored with instruction, data transmission method as described above is realized in the instruction when being performed.
The beneficial effects of the invention are as follows：The situation of prior art is different from, embodiments of the invention are by being periodically detected
Frequency spectrum resource service condition in working band, when the frequency resource taken by other business in the working band be present, obtain
Discrete schedulable resource frequency band is taken, the schedulable resource frequency band does not include the occupied frequency resource, and will be discrete
Continuous arrangement on schedulable resource band logical, logic continuously adjustabe degree frequency spectrum resource is formed, in logic continuously adjustabe degree frequency
Carry out data transmission on spectrum resource, device is handled the signal of transmission after filtering, and wherein the wave filter corresponds to occupied frequency money
Source so that wave filter filters out signal secondary lobe, so as to reduce the influence to data transfer on unscheduled frequency spectrum resource；And wave filter
Corresponding occupied frequency resource, one section of continuous frequency spectrum resource just needs intermediate zone, so as to improve the availability of frequency spectrum.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of data transmission method first embodiment of the present invention；
Fig. 2 is the process schematic of step S13 in Fig. 1；
Fig. 3 is the schematic flow sheet of data transmission method second embodiment of the present invention；
Fig. 4 is the schematic diagram of schedulable frequency spectrum resource median filter in working band；
Fig. 5 is the schematic flow sheet of data transmission method 3rd embodiment of the present invention；
Fig. 6 is the schematic flow sheet of data transmission method fourth embodiment of the present invention；
Fig. 7 is the FB(flow block) of each step in Fig. 6；
Fig. 8 is the schematic flow sheet of the embodiment of data transmission method the 5th of the present invention；
Fig. 9 is the schematic flow sheet of step S131 and S132 in data transmission method sixth embodiment of the present invention；
Figure 10 is the schematic flow sheet of step S1421 in data transmission method sixth embodiment of the present invention；
Figure 11 is the schematic flow sheet of the embodiment of data transmission method the 7th of the present invention；
Figure 12 is the structural representation of the embodiment of data transmission device one of the present invention；
Figure 13 is the structural representation for the embodiment of device one that the present invention has store function.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, data transmission method first embodiment of the present invention includes：
S11：The frequency spectrum resource service condition being periodically detected in working band, to judge to whether there is in the working band
The frequency resource taken by other business；
Wherein, other business are the business for being authorized to use the working band outside pre-set business；Pre-set business can be with
It is the business of some industry or certain business of some industry in the multiple industries for share the working band；The work
Make frequency band and detection cycle can according to the actual requirements depending on, be not specifically limited herein.
Specifically, in an application examples, 223~235MHz frequency ranges are that the business such as remote measurement, remote control, data transfer use
Working band, mainly used at present by industries such as electric power, army, meteorology, earthquake, water conservancy, Di Kuang, light industrys, in the application example, in advance
If business is power business；In power industry, the frequency spectrum resource that base station is periodically detected in 223~235MHz frequency ranges uses feelings
Condition, such as detection in every 12 hours is once, so as to judge to whether there is by other business in 223~235MHz working bands
The frequency resource of occupancy, such as the frequency resource taken by the business of the other industries such as army, meteorology；Wherein, power industry base
Frequency spectrum service condition can be periodically detected by frequency spectrum perception, such as the mode such as Energy-aware by standing, and power industry terminal is set
The standby notification message that can be issued by base station, obtains the frequency spectrum service condition in the working band.Certainly, in other application example
In, pre-set business can also be other business, and the working band can also be other frequency ranges, and the detection cycle can also be other
Value, is not specifically limited herein.
Certainly, in other embodiments, the frequency spectrum that terminal device can also be voluntarily periodically detected in working band uses
Situation, it is not specifically limited herein.
S12：If in the presence of obtaining discrete schedulable resource frequency band；
Wherein, the schedulable resource frequency band does not include occupied frequency resource；
Specifically, as shown in Fig. 2 in above-mentioned application examples, if base station detects some frequency moneys in working band 201
Source A, B, C are taken by other business, then base station/terminal equipment carries out needing to avoid these occupied frequency moneys during scheduling of resource
Source A, B, C, it is necessary to which a width of 25kHz of frequency spectrum resource band avoided integral multiple, now, base station/terminal equipment can in the application example
To obtain remaining discrete schedulable resource frequency band 202, the schedulable resource frequency band 202 do not include occupied frequency resource A,
B、C.Certainly, in other application example, the frequency spectrum resource bandwidth concrete numerical value that the needs avoid can be depending on actual demand, example
Such as include the bandwidth of occupied frequency resource and protection band, be not specifically limited herein.
S13：By continuous arrangement on the discrete schedulable resource band logical, logic continuously adjustabe degree frequency spectrum money is formed
Source；
Specifically, in an application examples, Fig. 2 is further regarded to, transmitting terminal is by the discrete schedulable resource frequency band 202
According to the ascending logically continuous arrangement of frequency, logic continuously adjustabe degree frequency spectrum resource 203, wherein the transmitting terminal bag are formed
Include base station and terminal device.
S14：Carry out data transmission on the logic continuously adjustabe degree frequency spectrum resource, the signal of transmission is after filtering at device
Reason；
Wherein, the wave filter corresponds to occupied frequency resource, i.e. the wave filter filters out occupied frequency resource, the filter
Ripple device can be bandpass filter or bandstop filter, and the intermediate zone bandwidth of the wave filter can be pre-set bandwidths, such as 3kHz,
It can also be set according to occupied frequency resource, be not specifically limited herein.
Specifically, transmitting terminal can continuously dispatch frequency spectrum resource in logic, and data to be sent are modulated into the schedulable
On frequency spectrum resource, and using the signal after filter process modulation, to reduce secondary lobe to other industry on non-scheduling frequency spectrum resource
The influence of business transmission；In addition, the wave filter correspondingly filters out occupied frequency resource, the letter on one section of continuously available frequency spectrum resource
Number bandpass filter can be used to handle, therefore one section of continuously available frequency spectrum resource only needs intermediate zone, rather than it is each solid
Determine frequency range and be required to intermediate zone, so as to improve frequency spectrum resource utilization rate.
Certainly, in other embodiments, the wave filter can also be low pass filter or high-pass filter, do not do and have herein
Body limits.
S15：If being not present, carried out data transmission using all frequency spectrum resources in the working band.
Specifically, if the frequency resource taken by other business is not present in the working band, institute in the working band
It is schedulable frequency spectrum resource to have frequency spectrum resource, and transmitting terminal can dispatch all frequency spectrum resources in the working band and carry out data biography
It is defeated.
In the present embodiment, transmitting terminal is by the frequency spectrum resource service condition that is periodically detected in working band, in the work
When the frequency resource taken by other business in frequency band be present, discrete schedulable resource frequency band, schedulable resource frequency are obtained
Band does not include the occupied frequency resource, and by continuous arrangement on discrete schedulable resource band logical, forms logic
Continuously adjustabe degree frequency spectrum resource, carry out data transmission on the logic continuously adjustabe degree frequency spectrum resource, the signal of transmission is filtered
The processing of ripple device, wherein the wave filter corresponds to occupied frequency resource so that wave filter filters out signal secondary lobe, so as to reduce to not
The influence of data transfer on the frequency spectrum resource of scheduling；And wave filter corresponds to occupied frequency resource, one section of continuous frequency spectrum money
Source just needs intermediate zone, so as to improve the availability of frequency spectrum.
As shown in figure 3, data transmission method second embodiment of the present invention is implemented in data transmission method of the present invention first
On the basis of example, before step S14, further comprise：
S140：Corresponding filter coefficient is generated according to frequency spectrum resource service condition；Or read be pre-configured with and frequency spectrum
The filter coefficient that resource service condition is adapted；
Wherein, schedulable resource frequency band does not include occupied frequency resource and the intermediate zone of wave filter；Filter coefficient
Centre frequency, cut-off frequency, pass band width, insertion loss, ripple, passband fluctuation including wave filter, band standing internal wave ratio, echo
The parameter such as loss and delay.
Specifically, it is assumed that the working band 40 of transmitting terminal is with a width of 3MHz, transmitting terminal obtains work frequency
After the frequency spectrum resource service condition in 40, find three discrete frequency resources 401,402 and 403 in the working band 40 be present
Taken by other business, wherein between adjacent frequency at intervals of 25kHz, then the frequency spectrum resource for needing to avoid is 3*25kHz.By
In including 4 continuous schedulable resource frequency bands in the presence of the frequency spectrum resource for needing to avoid, whole working band 40, wherein this is adjustable
Spending resource frequency band does not include occupied frequency resource 401,402 and 403 and the intermediate zone of wave filter.Transmitting terminal can basis
Schedulable resource situation separately designs 4 bandpass filters 501,502,503 and 504, and the intermediate zone of each wave filter needs to account for
With 3kHz frequency spectrum resource, then trap of effective broadband for 25kHz is formed, it is necessary to consume 28kHz's by two bandpass filters
Frequency spectrum resource.Wherein, transmitting terminal design wave filter can generate corresponding wave filter system in real time according to frequency spectrum resource service condition
Number, can also read the filter coefficient being adapted with frequency spectrum resource service condition being pre-configured with.In other application example, hair
Bandstop filter, or bandpass filter and bandstop filter can also be designed by penetrating end, be not specifically limited herein.
As shown in figure 5, data transmission method 3rd embodiment of the present invention is implemented in data transmission method of the present invention second
On the basis of example, step S140 further comprises：
S1401：Whether the frequency spectrum resource for judging not taken by other business in the working band is single discrete frequency；
S1402：If single discrete frequency, then the frequency spectrum resource that the bilateral intermediate zone of wave filter takes is not more than the first threshold
Value；
S1403：Otherwise, whether the frequency spectrum resource for judging not taken by other business in the working band is two continuous
Frequency；
S1404：If two continuous frequencies, then the frequency spectrum resource that the bilateral intermediate zone of wave filter takes is not more than second
Threshold value；
S1405：Otherwise the frequency spectrum resource that the bilateral intermediate zone of wave filter takes is not more than the 3rd threshold value.
Wherein, first threshold, Second Threshold and the 3rd threshold value are the maximum bandwidths of the bilateral intermediate zone pre-set, first
Threshold value is less than Second Threshold, and Second Threshold is less than the 3rd threshold value, and its concrete numerical value can not done herein depending on actual conditions
It is specific to limit.
Specifically, Fig. 4 is further regarded to, in an application examples, two neighboring frequency interval in working band 40
25kHz, first threshold 12.5kHz, Second Threshold 25kHz, the 3rd threshold value are 50kHz；Transmitting terminal judges the work respectively
Not by frequency spectrum resource 404,405,406 and 407 that other business take whether it is single frequency point resource in frequency band 40, its intermediate frequency spectrum
Resource 405 is single frequency point resource, and frequency spectrum resource 404,406 and 407 is not single frequency point resource, then the correspondence of frequency spectrum resource 405
502 bilateral intermediate zone of bandpass filter take frequency spectrum resource be not more than 12.5kHz, continue to judge frequency spectrum resource 404,406
Whether it is two continuous frequency resources with 407, wherein frequency spectrum resource 406 is two continuous frequency resources, frequency spectrum resource 404
It is the continuous frequency resource of two or more with 407, then 503 bilateral intermediate zone of bandpass filter corresponding to frequency spectrum resource 406 takes
Frequency spectrum resource be not more than 25kHz, corresponding to frequency spectrum resource 404 and 407 501 and 504 bilateral intermediate zone of bandpass filter take
Frequency spectrum resource be not more than 50kHz.
The present embodiment can also be combined with data transmission method first embodiment of the present invention.
As shown in fig. 6, data transmission method fourth embodiment of the present invention is implemented in data transmission method of the present invention first
On the basis of example, step S14 further comprises：
S141：The bit information of transmission is subjected to serioparallel exchange and planisphere mapping, to obtain complex signal；
Wherein, planisphere mapping is a kind of digital modulation mode, including QPSK (QPSK), and 16 kinds of symbols are just
Hand over amplitude modulation(PAM) (16QAM), quadrature amplitude modulation (64QAM) of 64 kinds of symbols etc..
Specifically, in an application examples, a string of bit informations waiting for transmission are carried out serioparallel exchange and constellation by transmitting terminal
After figure mapping, because planisphere is typically two dimension, the signal obtained after planisphere maps is complex signal.
S142：Complex signal is mapped at least part logic continuously adjustabe degree frequency spectrum resource, to obtain frequency-region signal；
S143：Frequency-region signal is subjected to inverse fast Fourier transform, and time-domain signal is formed after inserting cyclic prefix；
S144：Time-domain signal and wave filter are subjected to convolution to realize filtering；
S145：Radio-frequency transmissions after filtered time-domain signal is up-sampled.
Specifically, as shown in fig. 7, during transmitting terminal carries out data transmission, because schedulable frequency spectrum resource is in logic
Can continuously it dispatch, therefore the logic continuously adjustabe degree frequency spectrum resource can be continuously divided into by transmitting terminal since low frequency
The subcarrier of bandwidth (such as 2kHz).Then, transmitting terminal respectively will frequency domain data corresponding to each discrete schedulable band resource
It is mapped on corresponding subcarrier, and 2048 point quick Fourier inverse transformations is carried out (i.e. after the frequency signal after mapping is mended into 0
IFFT is converted).IFFT conversion after obtain time-domain signal insertion cyclic prefix CP after, by the time-domain signal respectively with it is corresponding
Wave filter carries out convolution, is gone out after finally filtered time-domain signal is up-sampled by radio-frequency transmissions.
As shown in fig. 7, during transmitting terminal carries out data transmission, schedulable frequency spectrum resource is unified to carry out an IFFT change
Change, without such as each subcarrier carries out IFFT conversion in the prior art, therefore, in the present embodiment reduce transmitting
The data transmission system complexity at end.
The present embodiment can be with any embodiment of data transmission method first to the 3rd of the present invention or its combination not conflicted
It is combined.
As shown in figure 8, the embodiment of data transmission method the 5th of the present invention is implemented in data transmission method the 4th of the present invention
On the basis of example, step S141 further comprises：
S1411：The constellation symbols obtained after planisphere maps are subjected to Fast Fourier Transform (FFT), write a letter in reply
Number.
Specifically, Fig. 7 is further regarded to, when transmitting terminal is the terminal device of non-base station, transmitting terminal is will be waiting for transmission
After a string of bit informations carry out serioparallel exchanges and planisphere mapping, the constellation icon that will further be obtained after planisphere maps
Number carry out Fast Fourier Transform (FFT) (i.e. FFT), it is hereby achieved that frequency domain complex signal.
As shown in Figure 9 and Figure 10, data transmission method sixth embodiment of the present invention is in data transmission method of the present invention
One and on the basis of fourth embodiment is combined, further limit step S13 and step S142.
Wherein, as shown in figure 9, step S13 further comprises：
S131：Logic continuously adjustabe degree frequency spectrum resource is divided into multiple time frequency units, at least one time frequency unit composition
Minimum scheduling unit；
As shown in Figure 10, step S142 further comprises：
S1421：Complex signal is mapped at least one minimum scheduling unit.
Specifically, in an application examples, designed, the logic continuously adjustabe degree frequency spectrum can be provided according to system frame structure
Source is divided into multiple time frequency units from time dimension and frequency dimension, and wherein one or more time frequency units form a most ditty
Unit is spent, the frequency domain bandwidth of each time frequency unit is △ f, time domain length TCP+ 1/ △ f, wherein TCPGrown for the CP duration
Degree.For example, when a discrete available frequency resource bandwidth is 25kHz, the frequency spectrum resource band that wave filter intermediate zone takes is a width of
During 3kHz, the subcarrier that the 22kHz bandwidth partitions of the discrete available frequency resources left are 11 2kHz can be divided
For 11 2kHz time frequency unit, its time domain length is TCP+0.5ms., can be by again during transmitting terminal carries out data transmission
Signal is mapped at least one minimum scheduling unit, then carries out follow-up signal processing.
As shown in figure 11, the embodiment of data transmission method the 7th of the present invention is implemented in data transmission method of the present invention first
On the basis of example is combined, step S11 further comprises：
S111：The resource service condition for the different frequent points being periodically detected using frequency spectrum perception in working band；
Wherein, at least one of frequency spectrum perception includes Energy-aware, matched filter perceives or cooperative frequency spectrum perceives.
Specifically, in an application examples, transmitting terminal can be periodically detected in its working band using frequency spectrum perception
The resource service condition of different frequent points, to judge whether each band resource is taken by other business in the working band, so as to
Subsequent data transmission is carried out in transmitting terminal.Wherein, transmitting terminal carry out frequency spectrum perception when can regard actual conditions using Energy-aware,
At least one of matched filter perceives or cooperative frequency spectrum perceives mode, perception cycle can also be set according to demand, herein
It is not specifically limited.
The present embodiment can also be with any one embodiment of data transmission method second to the 6th of the present invention and its not conflicting
Combination is combined.
As shown in figure 12, the embodiment of data transmission device 80 1 of the present invention includes：The processor 801 of interconnection and communication
Circuit 802；
Telecommunication circuit 802, it is the connecing of being communicated with other equipment of data transmission device 80 for receiving or sending data
Mouthful.
The operation of the control data transmitting device of processor 801, processor 801 can also be referred to as CPU (Central
Processing Unit, CPU).Processor 801 is probably a kind of IC chip, has the processing of signal
Ability.Processor 801 can also be general processor, digital signal processor (DSP), application specific integrated circuit (ASIC), ready-made
Programmable gate array (FPGA) either other PLDs, discrete gate or transistor logic, discrete hardware group
Part.General processor can be microprocessor or the processor can also be any conventional processor etc..
Processor 801 is used for execute instruction to realize any of embodiment of data transmission method first to the 7th of the present invention
And the method that any combination not conflicted is provided.
Certainly, in other embodiments, data transmission device 80 can also include the miscellaneous parts such as memory (not shown),
It is not specifically limited herein.
Data transmission device in the present embodiment can be base station or the individual components that can be integrated in base station,
Such as baseband board；Can be with communicator on the terminal device of right and wrong base station, such as electric power computer room transformer station etc..
As shown in figure 13, the present invention has in the embodiment of device 90 1 of store function, has the device 90 of store function
Instruction 901 is stored with, the instruction 901, which can be realized when being performed in the embodiment of data transmission method first to the 7th of the present invention, appoints
The method that one and any combination not conflicted are provided.
Wherein, with store function equipment 90 can be portable storage media such as USB flash disk, CD or base station,
Terminal device or the individual components that can be integrated in base station, such as baseband board etc..
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this
The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, it is included within the scope of the present invention.
Claims (10)
- A kind of 1. data transmission method, it is characterised in that including：The frequency spectrum resource service condition being periodically detected in working band, to judge to whether there is by other in the working band The frequency resource that business takes, other described business are the business for being authorized to use the working band outside pre-set business；If in the presence of obtaining discrete schedulable resource frequency band, the schedulable resource frequency band does not include the occupied frequency Point resource；By continuous arrangement on the discrete schedulable resource band logical, logic continuously adjustabe degree frequency spectrum resource is formed；Carrying out data transmission on the logic continuously adjustabe degree frequency spectrum resource, device is handled the signal of transmission after filtering, wherein The wave filter corresponds to the occupied frequency resource；If being not present, carried out data transmission using all frequency spectrum resources in the working band.
- 2. according to the method for claim 1, it is characterised in thatDevice processing includes the signal of the transmission before after filtering：Corresponding filter coefficient is generated according to the frequency spectrum resource service condition；OrRead the filter coefficient being adapted with the frequency spectrum resource service condition being pre-configured with；Wherein, the schedulable resource frequency band does not include the occupied frequency resource and the intermediate zone of the wave filter.
- 3. according to the method for claim 2, it is characterised in that described to be generated accordingly according to the frequency spectrum resource service condition Filter coefficient；Or the filter coefficient being adapted with the frequency spectrum resource service condition that reading is pre-configured with includes：Whether the frequency spectrum resource for judging not taken by other business in the working band is single discrete frequency；If single discrete frequency, then the frequency spectrum resource that the bilateral intermediate zone of the wave filter takes is not more than first threshold；Otherwise, whether the frequency spectrum resource for judging not taken by other business in the working band is two continuous frequencies；If two continuous frequencies, then the frequency spectrum resource that the bilateral intermediate zone of the wave filter takes is not more than Second Threshold；Otherwise the frequency spectrum resource that the bilateral intermediate zone of the wave filter takes is not more than the 3rd threshold value.
- 4. according to the method for claim 3, it is characterised in that two neighboring frequency interval 25kHz in the working band, The first threshold is 12.5kHz, and the Second Threshold is 25kHz, and the 3rd threshold value is 50kHz.
- 5. according to the method described in claim any one of 1-4, it is characterised in that described in the logic continuously adjustabe degree frequency spectrum Carry out data transmission including in resource：The bit information of transmission is subjected to serioparallel exchange and planisphere mapping, to obtain complex signal；The complex signal is mapped at least partly described logic continuously adjustabe degree frequency spectrum resource, to obtain frequency-region signal；The frequency-region signal is subjected to inverse fast Fourier transform, and time-domain signal is formed after inserting cyclic prefix；The time-domain signal and the wave filter are subjected to convolution to realize filtering；Radio-frequency transmissions after the filtered time-domain signal is up-sampled.
- 6. according to the method for claim 5, it is characterised in that the bit information by transmission carries out serioparallel exchange and star Seat figure mapping, is further comprised with obtaining complex signal：The constellation symbols obtained after planisphere mapping are subjected to Fast Fourier Transform (FFT), obtain the complex signal.
- 7. according to the method for claim 5, it is characterised in thatIt is described to enter continuous arrangement on the discrete schedulable resource band logical, formation logic continuously adjustabe degree frequency spectrum resource One step includes：The logic continuously adjustabe degree frequency spectrum resource is divided into multiple time frequency units, at least one time frequency unit composition is most Small scheduling unit；It is described the complex signal is mapped at least partly logic continuously adjustabe degree frequency spectrum resource to include：The complex signal is mapped at least one minimum scheduling unit.
- 8. according to the method described in claim any one of 1-4, it is characterised in that the frequency being periodically detected in working band Spectrum resource service condition includes：The resource service condition for the different frequent points being periodically detected using frequency spectrum perception in working band；Wherein, at least one of the frequency spectrum perception includes Energy-aware, matched filter perceives or cooperative frequency spectrum perceives.
- A kind of 9. data transmission device, it is characterised in that including：The processor and telecommunication circuit of interconnection；During the processor work, for realizing the method as described in claim any one of 1-8.
- 10. a kind of device with store function, is stored with instruction, it is characterised in that the instruction is realized as weighed when being performed Profit requires the method described in any one of 1-8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110996401A (en) * | 2019-12-02 | 2020-04-10 | 锐捷网络股份有限公司 | Method, device and equipment for determining idle channel |
| CN111314924A (en) * | 2020-02-13 | 2020-06-19 | 中国电信股份有限公司 | Information transmission method, near-end equipment, far-end equipment and communication system |
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| CN110996401A (en) * | 2019-12-02 | 2020-04-10 | 锐捷网络股份有限公司 | Method, device and equipment for determining idle channel |
| CN110996401B (en) * | 2019-12-02 | 2022-04-26 | 锐捷网络股份有限公司 | Method, device and equipment for determining idle channel |
| CN111314924A (en) * | 2020-02-13 | 2020-06-19 | 中国电信股份有限公司 | Information transmission method, near-end equipment, far-end equipment and communication system |
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