CN103685099B - A method and an apparatus for performing frequency conversion adjustment on a signal - Google Patents
A method and an apparatus for performing frequency conversion adjustment on a signal Download PDFInfo
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- CN103685099B CN103685099B CN201210361782.2A CN201210361782A CN103685099B CN 103685099 B CN103685099 B CN 103685099B CN 201210361782 A CN201210361782 A CN 201210361782A CN 103685099 B CN103685099 B CN 103685099B
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Abstract
The invention discloses a method and an apparatus for performing frequency conversion adjustment on a signal. The main content of the method comprises: determining the system information of a received signal by using a corresponding relation between preset signal indication information and frequency conversion parameters, further obtaining a frequency conversion parameter corresponding to the determined system information, and performing frequency conversion adjustment on the received signal with the obtained frequency conversion parameter. Compared with an apparatus in the prior art, a set of apparatus may determine the frequency conversion parameter for performing frequency conversion adjustment on the signal according to the difference of the systems of the received signals, and adjusts the received signal with the frequency conversion parameter so as to achieve effects of decreasing the amount of devices in a frequency conversion system, increasing the universality of the frequency conversion system, achieving frequency conversion processing on signals with different systems by using just one set of frequency conversion system, and saving communication resource.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of method and apparatus that frequency conversion adjustment is carried out to signal.
Background technology
With continuing to develop for mobile communication technology, communication spectrum resource becomes more and more valuable.In order to significantly more efficient
Using frequency spectrum resource, many communication systems all employ multi-transceiver technology, and the synthesis of carrier wave will produce larger peak-to-average force ratio, and this is right
Emitter proposes linear requirements higher.In order to solve the problems, such as that power amplifier linearity requirement is more tended to use number
The realization of word technology, before digital pre-distortion treatment is carried out, carries out Digital Up Convert to the digital baseband signal for receiving first
Treatment, and when radio-frequency input signals is received, the radio-frequency input signals to receiving carries out Digital Down Convert treatment.
In above process, data signal carries out upconversion process mainly includes：Data signal to being input into enters line frequency
Conversion, and after completing to the modulation of data signal and mixing, the mixed frequency signal of high speed is exported to power amplifier.
When carrying out upconversion process to the data signal being input into using prior art, generally by the way of：It is different systems
The signal configuration different processing of the signal of formula or standard of the same race but different transmission rates, needs in this processing procedure
Multistage FIR filter or half-band filter.
That is, to need to provide different treatment channels when the signal of different systems carries out upconversion process, for example：
Upconversion process is carried out by equipment 1 for GSM signals, 1 pair of GSM signal with same speed of the equipment is carried out at up-conversion
Reason, i.e., set specific upper side frequency processing parameter A in the device 1, and upconversion process is carried out to specific GSM signals；To TD-
SCDMA signals carry out upconversion process by equipment 2, and 2 pairs of TD-SCDMA signals with same speed of the equipment carry out up-conversion
Treatment, i.e., set specific upconversion process parameter B in equipment 2, and upconversion process is carried out to specific TD-SCDMA signals；
Wherein, equipment 1 is different from equipment 2, and it is different that processing parameter A is used for processing parameter B.
As can be seen here, upconversion process is carried out to the data signal being input into using prior art, in upconversion process system
In, the signal of specific standard is processed by specific equipment, and the signal of different systems carries out the equipment difference of upconversion process,
So cause that the processing equipment in upconversion process system is separate, have impact on the compatibility of devices in system, also certain
The waste of device resource is caused in degree.
It is identical with this, it is that upconversion process is carried out to data signal to the mode that radio-frequency input signals carries out down-converted
Inverse process, the mixed frequency signal to high speed first separates, and reduces the frequency of its signal, finally exports the baseband signal of low speed,
Therefore, when the baseband signal to receiving carries out down-converted, there is also above mentioned problem.
In sum, in the frequency conversion system of existing data signal, because the signal to different systems is set using different
Standby to carry out without compatibility between frequency-conversion processing, and distinct device, system design is excessively multiple in causing existing frequency conversion system
The problem that the miscellaneous and communication resource is wasted.
The content of the invention
A kind of method and apparatus that frequency conversion adjustment is carried out to signal is the embodiment of the invention provides, for solving prior art
In frequency-conversion processing is carried out using different equipment to the signal of different systems, system design mistake in the existing frequency conversion system for causing
In the problem that the complicated and communication resource is wasted.
A kind of method that frequency conversion adjustment is carried out to signal, methods described includes：
It is determined that the standard information of the signal for receiving；
The corresponding relation between standard information and frequency conversion parameter according to default signal, obtains the standard letter of the determination
Cease corresponding frequency conversion parameter；
Frequency conversion adjustment is carried out to the signal for receiving using the frequency conversion parameter for obtaining.
A kind of equipment that frequency conversion adjustment is carried out to signal, the equipment includes：
Determining module, the standard information of the signal for determining to receive；
Frequency conversion parameter configuration module, for the corresponding pass between the standard information according to default signal and frequency conversion parameter
System, obtains the corresponding frequency conversion parameter of standard information of the determination；
Adjusting module, for carrying out frequency conversion adjustment to the signal for receiving using the frequency conversion parameter for obtaining.
The present invention has the beneficial effect that：
The embodiment of the present invention utilizes the corresponding relation between the signal designation information and frequency conversion parameter for pre-setting, to receiving
To the standard information of signal be determined, and further obtain the corresponding frequency conversion parameter of the standard information of the determination, utilize
The frequency conversion parameter for obtaining carries out frequency conversion adjustment to the signal for receiving, compared with prior art, can by a set of equipment according to
The difference of the standard of the signal for receiving, it is determined that carrying out the frequency conversion parameter of frequency conversion adjustment to the signal, and utilizes the frequency conversion parameter
The signal to receiving is adjusted, and reduces the quantity of equipment in frequency conversion system, improves the versatility of frequency conversion system, real
Show frequency-conversion processing of a set of frequency conversion system to the signal of different systems, save the communication resource.
Brief description of the drawings
Fig. 1 is a kind of flow chart of method that frequency conversion adjustment is carried out to signal of the embodiment of the present invention one；
Fig. 2 be by the railway digital Signal separator after delay process into N railway digital signals structural representation；
Fig. 3 is to deposit to memory cell the data after separation, and the schematic flow sheet for reading；
Fig. 4 is a kind of flow chart of method that frequency conversion adjustment is carried out to signal of the embodiment of the present invention two；
Fig. 5 is a kind of structural representation of equipment that frequency conversion adjustment is carried out to signal of the embodiment of the present invention three；
Fig. 6 is a kind of structural representation of equipment that up-conversion adjustment is carried out to signal of the embodiment of the present invention four；
Fig. 7 is the structure chart of the second interpolation filter；
Fig. 8 is a kind of structural representation of equipment that down coversion adjustment is carried out to signal of the embodiment of the present invention four.
Specific embodiment
In order to realize the purpose of the present invention, the embodiment of the invention provides a kind of method that frequency conversion adjustment is carried out to signal and
Equipment, using the corresponding relation between the signal designation information and frequency conversion parameter for pre-setting, the standard of the signal to receiving
Information is determined, and further obtains the corresponding frequency conversion parameter of the standard information of the determination, using the frequency conversion parameter for obtaining
The signal to receiving carries out frequency conversion adjustment, compared with prior art, can be by a set of equipment according to the signal for receiving
The difference of standard, it is determined that carry out the frequency conversion parameter of frequency conversion adjustment to the signal, and using the frequency conversion parameter to the letter that receives
Number it is adjusted, reduces the quantity of equipment in frequency conversion system, improve the versatility of frequency conversion system, realizes a set of frequency conversion system
The frequency-conversion processing united to the signal of different systems, saves the communication resource.
Various embodiments of the present invention are described in detail with reference to Figure of description.
Embodiment one：
As shown in figure 1, a kind of flow chart of the method that frequency conversion adjustment is carried out to signal for the embodiment of the present invention one, described
Method includes：
Step 101：It is determined that the standard information of the signal for receiving.
In a step 101, the standard information of the signal includes：TD-LTE, Wimax, WCDMA, CDMA, TD-SCDMA and
GSM etc..
Step 102：The corresponding relation between standard information and frequency conversion parameter according to default signal, obtains the determination
The corresponding frequency conversion parameter of standard information.
In a step 102, the standard information configuration different systems signal previously according to signal carries out the frequency conversion of Gain tuning
Parameter, and the corresponding relation set up between the standard information of signal and frequency conversion parameter, store local.
The type of the frequency conversion parameter can be a kind of, or various.
Specifically, the frequency conversion parameter includes up-conversion parameter and down coversion parameter, wherein, the up-conversion parameter bag
Include：Up-conversion filter factor, the first interpolation of up-conversion multiple, up-conversion mixing frequencies and up-conversion gain adjustment factor；It is described
Down coversion parameter includes：Downconverting gain control parameter, down converted frequencies, down coversion extracting multiple value, down coversion filter factor.
It should be noted that being wrapped in the numerical value of the parameter information included in the up-conversion parameter and the down coversion parameter
The numerical value of the parameter information for containing can be identical, it is also possible to different identicals, the standard demand of the size of numerical value according to signal
It is determined that, or determine according to actual needs, it is not specifically limited here.
The corresponding relation between standard information and frequency conversion parameter according to default signal, obtains the standard letter of the determination
Corresponding frequency conversion parameter is ceased, is specifically included：
According to the corresponding relation between default data signal and up-conversion parameter, the standard information pair of the determination is obtained
The up-conversion parameter answered；And according to the corresponding relation between default radio-frequency input signals and down coversion parameter, obtain described
The corresponding down coversion parameter of standard information of determination.
Step 103：Frequency conversion adjustment is carried out to the signal for receiving using the frequency conversion parameter for obtaining.
In step 103, different for the signal for receiving, the mode for carrying out frequency conversion adjustment is also different.
When the signal for receiving is descending data signal, it is necessary to the data signal to receiving carries out up-conversion gain
Adjust, concrete mode is：
First, the data signal according to the up-conversion filter factor for obtaining to receiving is filtered treatment.
Specifically, when the data signal sent by agreement is received, using the up-conversion coefficient to receiving
Data signal carry out molding filtration treatment, the influence factor such as noise in the data signal that removal is received increases inband signaling
Suppression to out of band signal, and then ensure the demodulation quality of signal.
More preferably, FIR filter, the data signal to receiving can be used when treatment is filtered carries out molding filtration
Treatment；Or can also have other wave filters of molding filtration function using other, it is not specifically limited here.
Because the transmission rate of the data signal for receiving is relatively low, time-multiplexed side can be used when treatment is filtered
Formula, greatly improves the utilization rate of multiplier in formed filter, improves the treatment effeciency of signal, it is to avoid the waste of device resource.
Secondly, multiple change is carried out to the data signal after filtering process using the up-conversion the first interpolation multiple for obtaining
Change computing.
Specifically, the transform operation of the interpolation multiple is carried out to the data signal after filtering process in the following manner：
First：Delay process is carried out to the data signal after filtering process；
Secondly：Each railway digital signal after for delay process performs following operation：
The railway digital signal after delay process is carried out into product accumulation, N circuit-switched data signals are obtained；
In the memory cell that the N railway digitals signal write-in that writing rate according to setting will be obtained is specified；
The N roads information that will be stored according to the reading rate of setting from the memory cell reads, and the N roads letter that will be read
Breath is parallel to be accumulated as data signal output all the way, wherein, N is positive integer, and the coefficient to product accumulator is related, and the setting is write
Enter to meet between speed and the reading rate of setting the up-conversion the first difference multiple.
Wherein, as shown in Fig. 2 being to show the railway digital Signal separator after delay process into the structure of N railway digital signals
It is intended to, it is assumed that the data signal after delay process is X (n), then by isolated N ways after the treatment of multiplier and adder
Word signal, specifically, can be obtained by below equation：
Wherein, v (k, l) represents the wherein data signal all the way for obtaining, and N represents the way for separating signal, is positive integer, k
Value is 0,1,2 ... .., represents isolated total way, c1N () represents filter coefficient, isolated which l represent
Railway digital signal.
More preferably, in the memory cell that the N railway digitals signal write-in that will be obtained successively is specified, specifically include：
First：Determine the first address information of the write-in data of the memory cell.
Secondly：Following write operation is performed for N railway digitals signal, until N railway digitals signal all writes depositing of specifying
Storage unit：
From the first address information correspondence position of the determination, will data signal write storage unit all the way；
Next positional information of corresponding last position of memory space that data signal all the way is taken is used as new
First address information；
More preferably, the N railway digital signal-obtainings for being stored from the memory cell, specifically include：
First：Determine the first address information of the reading data of the memory cell；
Secondly：From the corresponding position of the first address information of the determination, the N railway digital signals in memory cell are determined,
The N railway digital signal-obtainings that reading rate according to setting will determine.
Specific embodiment can be with as shown in figure 3, be to deposit to memory cell the data after separation, and the flow for reading
Schematic diagram, specifically：
The first step：Judge that the current operation for performing is write-in data or reads data, it is determined that being write-in data manipulation
When, perform second step；When it is determined that being read data operation, the 3rd step is performed.
Second step：It is determined that the first address positional information of write-in data, from the first address positional information, will be isolated
N railway digitals signal write storage unit successively, and the first address positional information for writing data is changed to former first address position
Information adds the corresponding positional informations of N.
3rd step：It is determined that the first address positional information of data is read, from the first address positional information, it is determined that storage is single
N railway digital signals in unit, and the N railway digital signals of determination are once read.
More preferably, also include in the up-conversion parameter：Up-conversion the second interpolation multiple；
When the data signal for receiving is after treatment is filtered, determine that the data signal after filtering process is multicarrier
During signal, interpolation processing is carried out to the data signal after filtering process using the up-conversion the second interpolation multiple.
When interpolation processing is carried out, it is possible to use cic filter, but because cic filter is when broadband signal is processed,
The inadequate situation of pass band width flatness is had, in this case, it is therefore necessary to carry out bandwidth to the signal after interpolation processing
Compensation.
3rd, the data signal obtained after transformation of variables again and the orthogonal I/Q data for producing are carried out into mixing cumulative so that connect
The frequency of the data signal for receiving reaches the up-conversion mixing frequencies.
Specifically, due to the transmission rate phase of data signal obtained after transmission rate and times transformation of variables of orthogonal I/Q data
Together, the data signal obtained after transformation of variables again is carried out into multiplication mixing with the orthogonal I/Q data for producing, and to the result after mixing
Added up so that the frequency of the data signal for receiving reaches the up-conversion mixing frequencies.
Finally, Gain tuning is carried out to the data signal after mixing using the up-conversion gain adjustment factor.
Specifically, the Gain tuning includes the increase or reduction of data signal amplitude.
It should be noted that when the data signal to receiving carries out up-conversion Gain tuning, it is each according to what is obtained
The attribute information of individual up-conversion parameter itself, the data signal to receiving is processed accordingly；Or according to it is certain when
Between data signal of the order successively to receiving carry out upconversion process；Can also be and receiving and up-conversion parameter itself
During the command information of attribute information matching, obtain corresponding up-conversion parameter is carried out at up-conversion to the data signal for receiving
Reason.
When the signal for receiving is radio-frequency input signals, it is necessary to the baseband signal to receiving carries out downconverting gain tune
Whole, concrete mode is：
First, gain control is carried out to the radio-frequency input signals for receiving according to the downconverting gain control parameter for determining
System.
Secondly, the radio-frequency input signals after gain control is carried out into Frequency mixing processing with the orthogonal I/Q data for producing so that connect
The frequency of the baseband signal for receiving is adjusted to the down converted frequencies.
3rd, the baseband signal after being adjusted to frequency using the down coversion extracting multiple value carries out taking out value computing.
4th, treatment is filtered to taking out the baseband signal after value according to the down coversion filter factor.
Because downconverting gain adjustment is the inverse process of up-conversion Gain tuning, therefore, carrying out downconverting gain adjustment
When, the specific embodiment of each step is identical with the implementation method of up-conversion, but effect conversely, be not described here.
By the scheme of embodiment one, using the corresponding pass between the signal designation information for pre-setting and frequency conversion parameter
System, the standard information of the signal to receiving is determined, and further obtains the corresponding frequency conversion of standard information of the determination
Parameter, frequency conversion adjustment is carried out using the frequency conversion parameter for obtaining to the signal for receiving, compared with prior art, can be by a set of
Equipment it is determined that carrying out the frequency conversion parameter of frequency conversion adjustment to the signal, and utilizes this according to the difference of the standard of the signal for receiving
Frequency conversion parameter is adjusted to the signal for receiving, and reduces the quantity of equipment in frequency conversion system, improves frequency conversion system
Versatility, realizes frequency-conversion processing of a set of frequency conversion system to the signal of different systems, saves the communication resource.
Embodiment two：
As shown in figure 4, a kind of flow chart of the method that frequency conversion adjustment is carried out to signal for the embodiment of the present invention two.This reality
The detailed description that example two is each step of the present embodiment one is applied, methods described includes：
Step 201：It is determined that the standard information of the signal for receiving.
Step 202：The protocol type of the signal that judgement is received is descending data signal or up radio frequency input
Signal, if descending data signal, then performs step 203；If up radio-frequency input signals, then step 208 is performed.
Step 203：The corresponding relation between standard information and up-conversion parameter according to default data signal, obtains institute
State the corresponding up-conversion parameter of standard information of determination.
Wherein, the up-conversion parameter includes：Up-conversion filter factor, the first interpolation of up-conversion multiple, up-conversion mixing
Frequency and up-conversion gain adjustment factor.
Step 204：Data signal according to the up-conversion filter factor for obtaining to receiving is filtered treatment.
Step 205：Multiple change is carried out to the data signal after filtering process using the up-conversion interpolation multiple for obtaining
Change computing.
More preferably, multiple transform operation is carried out to the data signal after filtering process can utilize the interpolation of Farrow structures to filter
Ripple device is completed.
In this step 205, the specific steps that the data signal after to filtering process carries out multiple transform operation can be with
It is divided into three steps：
First, the data signal being filtered after treatment that will be received carries out delay process.
Specifically, the signal way of the data signal according to the up-conversion interpolation multiple to receiving is carried out at symmetrization
Reason, that is, the data signal for receiving is M roads signal, carries out the data signal after delay process and is converted into P roads, wherein, P is equal to M
With the product of the up-conversion interpolation multiple.
Secondly, transmission rate and clock domain information to the data signal of delay process are changed.
Specifically, in the memory cell that the P railway digitals signal write-in that will be obtained successively is specified, specifically include：
First：Determine the first address information of the write-in data of the memory cell.
Secondly：Following write operation is performed for P railway digitals signal, until P railway digitals signal all writes depositing of specifying
Storage unit：
From the first address information correspondence position of the determination, will data signal write storage unit all the way；
Next positional information of corresponding last position of memory space that data signal all the way is taken is used as new
First address information；
More preferably, the P railway digital signal-obtainings for being stored from the memory cell, specifically include：
First：Determine the first address information of the reading data of the memory cell；
Secondly：From the corresponding position of the first address information of the determination, the P railway digital signals in memory cell are determined,
The P railway digital signal-obtainings that reading rate according to setting will determine.
More preferably, the up-conversion parameter also includes：Up-conversion the second interpolation multiple；
After being filtered to data signal after treatment, before execution mixing is cumulative, when the data signal for receiving
After treatment is filtered, when determining the data signal after filtering process for multi-carrier signal, using the up-conversion second
Interpolation multiple carries out interpolation processing to the data signal after filtering process.
Step 206：The data signal obtained after transformation of variables again and the orthogonal I/Q data for producing are carried out into mixing cumulative so that
The frequency of the data signal for receiving reaches the up-conversion mixing frequencies.
Step 207：Gain tuning is carried out to the data signal after mixing using the up-conversion gain adjustment factor.
Step 208：The corresponding relation between standard information and down coversion parameter according to default radio-frequency input signals, obtains
To the corresponding down coversion parameter of standard information of the determination.
Wherein, the down coversion parameter includes：Downconverting gain control parameter, down converted frequencies, down coversion extracting multiple
Value, down coversion filter factor.
Step 209：Gain is carried out to the radio-frequency input signals for receiving according to the downconverting gain control parameter for determining
Control.
Step 210：Radio-frequency input signals after gain control is carried out into Frequency mixing processing with the orthogonal I/Q data for producing so that
The frequency of the radio-frequency input signals for receiving is adjusted to the down converted frequencies.
Step 211：Radio-frequency input signals after being adjusted to frequency using the down coversion extracting multiple value carries out taking out value fortune
Calculate.
Step 212：Treatment is filtered to taking out the radio-frequency input signals after value according to the down coversion filter factor.
Embodiment three：
As shown in figure 5, a kind of structural representation of the equipment that frequency conversion adjustment is carried out to signal for the present embodiment three.It is described
Equipment includes：Determining module 11, frequency conversion parameter configuration module 12 and adjusting module 13, wherein：
Determining module 11, the standard information of the signal for determining to receive.
Frequency conversion parameter configuration module 12, for the corresponding pass between the standard information according to default signal and frequency conversion parameter
System, obtains the corresponding frequency conversion parameter of standard information of the determination.
Adjusting module 13, for carrying out frequency conversion adjustment to the signal for receiving using the frequency conversion parameter for obtaining.
Specifically, the frequency conversion parameter is up-conversion parameter.
The frequency conversion parameter configuration module 12, specifically for according to right between default data signal and up-conversion parameter
Should be related to, obtain the corresponding up-conversion parameter of standard information of the determination, the up-conversion parameter includes：Up-conversion filtering system
Number, the first interpolation of up-conversion multiple, up-conversion mixing frequencies and up-conversion gain adjustment factor.
The adjusting module 13, specifically includes：First filter unit 21, the first arithmetic element 22, the first mixing unit 23
With the first gain adjusting unit 24, wherein：
First filter unit 21, is carried out for the data signal according to the up-conversion filter factor for obtaining to receiving
Filtering process.
First arithmetic element 22, for utilizing the up-conversion interpolation multiple for obtaining to the data signal after filtering process
Carry out multiple transform operation.
First mixing unit 23, for the data signal obtained after transformation of variables again to be mixed with the orthogonal I/Q data for producing
Frequency is cumulative so that the frequency of the data signal for receiving reaches the up-conversion mixing frequencies.
First gain adjusting unit 24, for being entered to the data signal after mixing using the up-conversion gain adjustment factor
Row Gain tuning.
The up-conversion parameter also includes：Up-conversion the second interpolation multiple；
The adjusting module 13, also includes：Processing unit 25, wherein：
Processing unit 25, for when the data signal for receiving be filtered treatment after, after determining filtering process
When data signal is multi-carrier signal, the data signal after filtering process is inserted using the up-conversion the second interpolation multiple
Value treatment.
Specifically, first arithmetic element 22, specifically includes：
Delay process subelement 41, for carrying out delay process to the data signal after filtering process；
Speed adjust subelement 42, for the railway digital signal after delay process to be carried out into product accumulation, obtains N ways
It is believed that number；
In the memory cell that the N railway digitals signal write-in that writing rate according to setting will be obtained is specified；
The N roads information that will be stored according to the reading rate of setting from the memory cell reads, and the N roads letter that will be read
Breath is parallel to be accumulated as data signal output all the way, wherein, N is positive integer, and the coefficient to product accumulator is related, and the setting is write
Enter to meet between speed and the reading rate of setting the up-conversion the first difference multiple.
The speed adjust subelement 42, specifically includes：
Write-in data submodule 51, the first address information of the write-in data for determining the memory cell, and for N
Railway digital signal performs following write operation, until N railway digitals signal all writes the memory cell specified：
From the first address information correspondence position of the determination, will data signal write storage unit all the way；
Next positional information of corresponding last position of memory space that data signal all the way is taken is used as new
First address information；
Read data submodule 52, the first address information of the reading data for determining the memory cell, and from institute
The corresponding position of first address information for stating determination is risen, and the N railway digital signals in memory cell is determined, according to the reading rate of setting
The N railway digital signal-obtainings that will be determined.
The frequency conversion parameter configuration module 12, specifically for according to right between default baseband signal and down coversion parameter
Should be related to, obtain the corresponding down coversion parameter of standard information of the determination, the down coversion parameter includes：Downconverting gain control
Parameter processed, down converted frequencies, down coversion extracting multiple value, down coversion filter factor.
Specifically, the adjusting module 13, specifically includes：Second gain adjusting unit 31, the second mixing unit 32, second
The filter unit 34 of arithmetic element 33 and second, wherein：
Second gain adjusting unit 31, for being believed the base band for receiving according to the downconverting gain control parameter for determining
Number carry out gain control；
Second mixing unit 32, for the baseband signal after gain control to be carried out at mixing with the orthogonal I/Q data for producing
Reason so that the frequency of the baseband signal for receiving is adjusted to the down converted frequencies；
Second arithmetic element 33, is carried out for the baseband signal after being adjusted to frequency using the down coversion extracting multiple value
Take out value computing；
Second filter unit 34, for being filtered place to taking out the baseband signal after value according to the down coversion filter factor
Reason.
It should be noted that the equipment described in the embodiment of the present invention three, can be an equipment, the equipment contains change
The function of function and the downconverting gain adjustment of frequency Gain tuning；Can also be two equipment, an equipment is provided with up-conversion
The function of Gain tuning, another equipment is provided with the function of downconverting gain adjustment.
Example IV：
As shown in fig. 6, a kind of structural representation of the equipment that up-conversion adjustment is carried out to signal for the embodiment of the present invention four
Figure, the equipment includes：Up-conversion configuration module 61, the first interpolation filter 62, the second interpolation filter 63, the filter of the 3rd interpolation
Ripple device 64, multichannel NCO generation modules 65, multichannel mixing accumulator module 66 and Gain tuning 67 after mixing, wherein：
Up-conversion configuration module 61, for configuring the first interpolation filter coefficients, the first interpolation multiple, the second interpolation times
Number, mixing frequencies and Gain tuning parameter, and the parameter information of configuration is sent to corresponding equipment；
First interpolation filter 62, for using the first interpolation filter coefficients for obtaining, to the descending number for receiving
Word signal carries out molding filtration treatment.
Specifically, the first interpolation filter can be FIR interpolation filters.
Second interpolation filter 63, for utilizing the up-conversion the first interpolation multiple for obtaining to the number after filtering process
Word signal carries out multiple transform operation.
Specifically, second interpolation filter can include：Filter Stage（Time delay, matrix accumulator）、FIFO
Stage（Specifically include：Address control, memory cell, data combining and data branches）With Compute Stage（Specifically include：
Time delay module, parallel accumulator module and time delay factor generation module）, as shown in Figure 7.
3rd interpolation filter 64, for when the data signal for receiving be filtered treatment after, it is determined that at filtering
When data signal after reason is multi-carrier signal, using the up-conversion the second interpolation multiple to the data signal after filtering process
Carry out interpolation processing.
Specifically, the 3rd interpolation filter can be cic filter.
Multichannel NCO generation modules 65, for the orthogonal I/Q data for producing；
Multichannel is mixed accumulator module 66, for the data signal that will be obtained after transformation of variables again and the orthogonal I/Q data for producing
Carry out mixing cumulative so that the frequency of the data signal for receiving reaches the up-conversion mixing frequencies；
Gain tuning 67 after mixing, for being carried out to the data signal after mixing using the up-conversion gain adjustment factor
Gain tuning.
Fig. 8 is a kind of structural representation of equipment that down coversion adjustment is carried out to signal of the embodiment of the present invention four, described
Equipment includes：Gain tuning 72, multichannel NCO generation modules 73, multichannel frequency mixing module before down coversion configuration module 71, mixing
74th, the first decimation filter 75, the second decimation filter 76 and the 3rd decimation filter 77, wherein：
Down coversion configuration module 71, extracts for configuring downconverting gain control parameter, down converted frequencies, down coversion first
Multiple value, down coversion the second extracting multiple value and down coversion filter factor, and the parameter information of configuration is sent to sets accordingly
It is standby；
Gain tuning 72 before mixing, for the radio frequency input according to the downconverting gain control parameter for determining to receiving
Signal carries out gain control；
Multichannel NCO generation modules 73, for the orthogonal I/Q data for producing；
Multichannel frequency mixing module 74, for being carried out with the orthogonal I/Q data for producing to the radio-frequency input signals after gain control
Frequency mixing processing, the frequency of the radio-frequency input signals that will be received is adjusted to the down converted frequencies；
First decimation filter 75 and the second decimation filter 76, for using down coversion the first extracting multiple value and
Radio-frequency input signals after the first extracting multiple of down coversion value is adjusted to frequency successively carries out taking out value computing；
3rd decimation filter 77, for being carried out to taking out the radio-frequency input signals after value according to the down coversion filter factor
Filtering process.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of method that frequency conversion adjustment is carried out to signal, it is characterised in that methods described includes：
It is determined that the standard information of the signal for receiving；
The corresponding relation between standard information and frequency conversion parameter according to default signal, obtains the standard information pair of the determination
The frequency conversion parameter answered；
Frequency conversion adjustment is carried out to the signal for receiving using the frequency conversion parameter for obtaining；
If the frequency conversion parameter is up-conversion parameter；Corresponding pass between standard information and frequency conversion coefficient according to default signal
System, obtains the corresponding frequency conversion coefficient of standard information of the determination, specifically includes：
According to the corresponding relation between default data signal and up-conversion parameter, the standard information for obtaining the determination is corresponding
Up-conversion parameter, the up-conversion parameter includes：Up-conversion filter factor, the first interpolation of up-conversion multiple, up-conversion mixing frequency
Rate and up-conversion gain adjustment factor；
Frequency conversion adjustment is carried out to the signal for receiving using the frequency conversion parameter for obtaining, is specifically included：
Data signal according to the up-conversion filter factor for obtaining to receiving is filtered treatment, and using the institute for obtaining
State up-conversion the first interpolation multiple carries out multiple transform operation to the data signal after filtering process；
The data signal obtained after transformation of variables again and the orthogonal I/Q data for producing are carried out into mixing cumulative so that the numeral for receiving
The frequency of signal reaches the up-conversion mixing frequencies；
Gain tuning is carried out to the data signal after mixing using the up-conversion gain adjustment factor；
It is described that a times transformation of variables fortune is carried out to the data signal after filtering process using the up-conversion the first interpolation multiple for obtaining
Calculate, specifically include：
Delay process is carried out to the data signal after filtering process；
Each railway digital signal after for delay process performs following operation：
The railway digital signal after delay process is carried out into product accumulation, N circuit-switched data signals are obtained；
In the memory cell that the N railway digitals signal write-in that writing rate according to setting will be obtained is specified；
The N roads information that will be stored according to the reading rate of setting from the memory cell reads, and the N roads information that will be read is simultaneously
Row is accumulated as data signal output all the way, wherein, N is positive integer, and the coefficient to product accumulator is related, the setting write-in speed
The up-conversion the first difference multiple is met between rate and the reading rate of setting.
2. the method for claim 1, it is characterised in that the up-conversion parameter also includes：The interpolation of up-conversion second times
Number；
Data signal is filtered after treatment, before execution mixing is cumulative, methods described also includes：
When the data signal for receiving is after treatment is filtered, determine that the data signal after filtering process is multi-carrier signal
When, interpolation processing is carried out to the data signal after filtering process using the up-conversion the second interpolation multiple.
3. the method for claim 1, it is characterised in that the N railway digital signals that the writing rate according to setting will be obtained
In the memory cell that write-in is specified, specifically include：
Determine the first address information of the write-in data of the memory cell；
Following write operation is performed for N railway digitals signal, until N railway digitals signal all writes the memory cell specified：
From the first address information correspondence position of the determination, will data signal write storage unit all the way；
Using next positional information of corresponding last position of memory space of the occupancy of data signal all the way as new head
Address information；
The N railway digital signal-obtainings that reading rate according to setting is stored from the memory cell, specifically include：
Determine the first address information of the reading data of the memory cell；
From the corresponding position of the first address information of the determination, the N railway digital signals in memory cell are determined, according to setting
The N railway digital signal-obtainings that reading rate will determine.
4. the method for claim 1, it is characterised in that the frequency conversion parameter is down coversion parameter；
The corresponding relation between standard information and frequency conversion parameter according to default signal, obtains the standard information pair of the determination
The frequency conversion parameter answered, specifically includes：
According to the corresponding relation between default radio-frequency input signals and down coversion parameter, the standard information pair of the determination is obtained
The down coversion parameter answered, the down coversion parameter includes：Downconverting gain control parameter, down converted frequencies, down coversion are extracted again
Numerical value, down coversion filter factor.
5. method as claimed in claim 4, it is characterised in that carried out to the signal for receiving using the frequency conversion coefficient for obtaining
Frequency conversion is adjusted, and is specifically included：
Gain control is carried out to the radio-frequency input signals for receiving according to the downconverting gain control parameter for determining；
Frequency mixing processing is carried out with the orthogonal I/Q data for producing to the radio-frequency input signals after gain control, the radio frequency that will be received is defeated
The frequency for entering signal is adjusted to the down converted frequencies；
Radio-frequency input signals after being adjusted to frequency using the down coversion extracting multiple value carries out taking out value computing, and according to described
Down coversion filter factor is filtered treatment to taking out the radio-frequency input signals after value.
6. a kind of equipment that frequency conversion adjustment is carried out to signal, it is characterised in that the equipment includes：
Determining module, the standard information of the signal for determining to receive；
Frequency conversion parameter configuration module, for the corresponding relation between the standard information and frequency conversion parameter according to default signal, obtains
To the corresponding frequency conversion parameter of standard information of the determination；
Adjusting module, for carrying out frequency conversion adjustment to the signal for receiving using the frequency conversion parameter for obtaining；
The frequency conversion parameter configuration module, specifically for if the frequency conversion parameter is up-conversion parameter, according to default numeral
Corresponding relation between signal and up-conversion parameter, obtains the corresponding up-conversion parameter of standard information of the determination, it is described on
Frequency conversion parameter includes：Up-conversion filter factor, the first interpolation of up-conversion multiple, up-conversion mixing frequencies and up-conversion Gain tuning
Coefficient；
The adjusting module, specifically includes：
First filter unit, place is filtered for the data signal according to the up-conversion filter factor for obtaining to receiving
Reason；
First arithmetic element, for being entered to the data signal after filtering process using the up-conversion the first interpolation multiple for obtaining
Row multiple transform operation；
First mixing unit, it is tired for the data signal obtained after transformation of variables again and the orthogonal I/Q data for producing to be carried out into mixing
Plus so that the frequency of the data signal for receiving reaches the up-conversion mixing frequencies；
First gain adjusting unit, for carrying out gain to the data signal after mixing using the up-conversion gain adjustment factor
Adjustment；
First arithmetic element, specifically includes：
Delay process subelement, for carrying out delay process to the data signal after filtering process；
Speed adjust subelement, for the data signal after delay process to be carried out into product accumulation, obtains N circuit-switched data signals；
In the memory cell that the N railway digitals signal write-in that writing rate according to setting will be obtained is specified；
The N roads information that will be stored according to the reading rate of setting from the memory cell reads, and the N roads information that will be read is simultaneously
Row is accumulated as data signal output all the way, wherein, N is positive integer, and the coefficient to product accumulator is related, the setting write-in speed
The up-conversion the first difference multiple is met between rate and the reading rate of setting.
7. equipment as claimed in claim 6, it is characterised in that the adjusting module, also includes：
Processing unit, for when the data signal for receiving be filtered treatment after, determine after filtering process numeral letter
Number for multi-carrier signal when, the data signal after filtering process is entered at row interpolation using the up-conversion the second interpolation multiple
Reason.
8. equipment as claimed in claim 6, it is characterised in that the speed adjust subelement, specifically includes：
Write-in data submodule, the first address information of the write-in data for determining the memory cell, and for N railway digitals
Signal performs following write operation, until N railway digitals signal all writes the memory cell specified：
From the first address information correspondence position of the determination, will data signal write storage unit all the way；
Using next positional information of corresponding last position of memory space of the occupancy of data signal all the way as new head
Address information；
Read data submodule, the first address information of the reading data for determining the memory cell, and from the determination
The corresponding position of first address information rise, determine the N railway digital signals in memory cell, will determine according to the reading rate of setting
N railway digital signal-obtainings.
9. equipment as claimed in claim 6, it is characterised in that the frequency conversion parameter is down coversion parameter；
The frequency conversion parameter configuration module, specifically for according to corresponding between default radio-frequency input signals and down coversion parameter
Relation, obtains the corresponding down coversion parameter of standard information of the determination, and the down coversion parameter includes：Downconverting gain is controlled
Parameter, down converted frequencies, down coversion extracting multiple value, down coversion filter factor.
10. equipment as claimed in claim 9, it is characterised in that the adjusting module, specifically includes：
Second gain adjusting unit, for according to determine the downconverting gain control parameter to receive radio-frequency input signals
Carry out gain control；
Second mixing unit, for the radio-frequency input signals after gain control to be carried out at mixing with the orthogonal I/Q data for producing
Reason so that the frequency of the radio-frequency input signals for receiving is adjusted to the down converted frequencies；
Second arithmetic element, is taken out for the radio-frequency input signals after being adjusted to frequency using the down coversion extracting multiple value
Value computing；
Second filter unit, for being filtered place to taking out the radio-frequency input signals after value according to the down coversion filter factor
Reason.
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| CN111277279B (en) * | 2018-12-04 | 2022-10-14 | 深圳市中兴微电子技术有限公司 | Data processing method and device |
| CN109687884B (en) * | 2018-12-27 | 2021-07-09 | 中科院计算技术研究所南京移动通信与计算创新研究院 | Digital receiver filter coefficient reloading method, device and storage medium |
| CN109801641B (en) * | 2019-03-19 | 2021-06-08 | 深圳锐越微技术有限公司 | Audio rate conversion system and electronic device |
| CN111835597A (en) * | 2020-07-21 | 2020-10-27 | 广州小鹏车联网科技有限公司 | Adjusting method and device |
| CN112398581B (en) * | 2020-07-30 | 2021-06-04 | 上海航天测控通信研究所 | All-digital modulation satellite-borne code modulation system and method |
| CN114372019B (en) * | 2022-03-21 | 2022-07-15 | 深圳时识科技有限公司 | Method, device and chip for transmitting pulse event |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262240A (en) * | 2008-04-25 | 2008-09-10 | 浙江大学 | An easy-to-realize method and device for full digital frequency conversion |
| CN101330276A (en) * | 2008-08-04 | 2008-12-24 | 京信通信***（中国）有限公司 | Digital predistortion power amplifier and implementing method thereof |
| CN101738624A (en) * | 2009-12-15 | 2010-06-16 | 和芯星通科技(北京)有限公司 | Signal acquisition system and method for satellite navigation receiver |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030078011A1 (en) * | 2001-10-18 | 2003-04-24 | Integrated Programmable Communications, Inc. | Method for integrating a plurality of radio systems in a unified transceiver structure and the device of the same |
| EP1582003B1 (en) * | 2002-12-30 | 2012-06-06 | ST-Ericsson SA | Multimode receiver |
| CN101366192A (en) * | 2005-09-12 | 2009-02-11 | 高通股份有限公司 | Multi-band radio frequency modulator |
| CN101399600A (en) * | 2007-09-29 | 2009-04-01 | 京信通信***（中国）有限公司 | Multi-carrier digital frequency selecting antenna repeater system and multi-carrier digital frequency selecting method thereof |
| CN101521539B (en) * | 2008-02-25 | 2012-12-19 | 京信通信***（中国）有限公司 | Wideband digital frequency-selecting wireless repeater system and wideband signal digital frequency-selecting method thereof |
| CN201243292Y (en) * | 2008-07-11 | 2009-05-20 | 福建三元达通讯股份有限公司 | Digital frequency selection optical fiber station |
| CN201708797U (en) * | 2010-05-17 | 2011-01-12 | 福建先创通信有限公司 | Digital frequency-selecting device for multi-carrier mobile communication relay equipment |
| CN102076120B (en) * | 2010-12-03 | 2013-01-09 | 东南大学 | Multimode multiband radio-frequency onboard micro-micro cellular communication system based on software defined radio |
| CN102215045B (en) * | 2011-06-02 | 2013-11-20 | 京信通信技术(广州)有限公司 | Transceiver capable of simultaneously covering second generation (2G) and third generation (3G) signals and signal processing method of transceiver |
-
2012
- 2012-09-25 CN CN201210361782.2A patent/CN103685099B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262240A (en) * | 2008-04-25 | 2008-09-10 | 浙江大学 | An easy-to-realize method and device for full digital frequency conversion |
| CN101330276A (en) * | 2008-08-04 | 2008-12-24 | 京信通信***（中国）有限公司 | Digital predistortion power amplifier and implementing method thereof |
| CN101738624A (en) * | 2009-12-15 | 2010-06-16 | 和芯星通科技(北京)有限公司 | Signal acquisition system and method for satellite navigation receiver |
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