CN104244384A - Transmitting power regulation method and device - Google Patents

Abstract

The invention provides a transmitting power regulation device. By means of related simulation and digital gain adjustment, nonlinear distortion is supplemented, the gain amplitude of a signal processed through a leader sequence and nonlinear distortion reverse supplementation is adjusted, power consumption is lowered, efficiency and robustness are improved, and the gain adjustment of the whole transmission link is completed.

Description

A kind of method for regulating emission power and device

Technical field

The present invention relates to communication technical field, particularly relate to a kind of method for regulating emission power and device.

Background technology

Along with commercialization and the Large scale construction of 3G and 4G network, in order to reduce equity type investment and operation cost, the technology relevant to resource adjustments more and more receives the concern of operator, and the technology relevant to resource adjustments mainly comprises power conditioning technology, through-put power amplifying unit technology and gain control.

Power adjustments of the prior art generally adopt numerical control decay device realize, by power feedback gather send to power adjustment unit to carry out power adjustments detected value, but its regulate step-length and precision not high, whole system power consumption can be caused to increase.

For through-put power amplifying unit, the index request suppressed side channel due to system is high, good linearity, efficiency requirements is high, and through-put power amplifying unit can not be too high when selecting amplifying power, can not be too little, high power consumption can be caused to increase, little be difficult to the requirement meeting side channel suppression.

And automatic growth control is generally divided into feed forward type automatic growth control and back coupling formula automatic growth control, feed forward type automatic growth control robustness is better, but efficiency is lower, and feedbacks the response of formula automatic growth control soon, and efficiency is high, but robustness is wayward.

Therefore, for above-mentioned defect of the prior art, be necessary to redesign a kind of transmission power adjustment device, to improve precision and the efficiency of power adjustments to greatest extent.

Summary of the invention

The object of the invention is to be achieved through the following technical solutions.

According to the embodiment of the present invention, propose a kind of transmission power adjustment device, described adjusting device comprises:

Transmission automatic gain adjustment unit, carries out transmission automatic gain adjustment process for the time in setting by predetermined targeting sequencing;

Digital Up Convert unit, for setting time to multi-carrier frequency service signal complete filtering interpolation lay equal stress on poststack export;

Peak to average attenuation units, carries out peak to average attenuation processing for the high speed signal will obtained after Digital Up Convert cells overlap;

Nonlinear distortion Contrary compensation unit, carries out the process of nonlinear distortion Contrary compensation for utilizing the nonlinear distortion Contrary compensation coefficient of preservation to described targeting sequencing; Utilize the nonlinear distortion Contrary compensation coefficient that the up-to-date nonlinear distortion Contrary compensation coefficient update self obtained is preserved; The nonlinear distortion Contrary compensation coefficient preserved is utilized to carry out the process of nonlinear distortion Contrary compensation to the signal after the peak to average attenuation processing received;

First digital Auto Gain adjustment unit, for carrying out figure automatic control gain process by the signal after the process of nonlinear distortion Contrary compensation;

Inverse quantization unit, for being undertaken simulated by the signal after figure automatic control gain process;

Transmission gain adjustment unit able to programme, for carrying out transmission gain adjustment control treatment able to programme by the signal after simulated;

Through-put power amplifying unit, exports after carrying out power amplification to the signal after transmission gain adjustment control treatment able to programme;

Feedback unit, when signal for exporting at through-put power amplifying unit is targeting sequencing, the signal that the power amplification of being coupled to is exported signal after down-converted, carry out feedback gain adjustment process successively, quantize, the gain of wherein feedback gain adjustment sets according to the multiplication factor of through-put power amplifying unit; Signal after quantizing is carried out power statistic, calibration is carried out synchronously to the original targeting sequencing that the signal after quantification and nonlinear distortion Contrary compensation unit export; Signal after calibration is synchronous carries out digital Auto Gain adjustment; Utilize the output signal of nonlinear distortion Contrary compensation unit and the targeting sequencing after digital Auto Gain adjustment process to carry out estimating to obtain up-to-date nonlinear distortion Contrary compensation coefficient, be supplied to nonlinear distortion Contrary compensation unit.

According to the embodiment of the present invention, described Digital Up Convert unit, also be further used for carrying out carrier frequency automatic gain adjustment process to the signal on each carrier frequency before multi-carrier frequency overlap, and filtering interpolation is carried out to the signal after carrier frequency automatic gain adjustment process, complete frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing.

According to the embodiment of the present invention, described feedback unit is used for according to the power of the output signal after the process of nonlinear distortion Contrary compensation and compares the signal power after quantizing, complete the power adjustment of feedback signal, be correlated with according to the output signal after feedback signal and the process of nonlinear distortion Contrary compensation, the calibration completing feedback signal and nonlinear distortion Contrary compensation signal is synchronous simultaneously.

According to the embodiment of the present invention, described feedback unit specifically comprises:

Feedback gain adjustment unit, the signal exported for the power amplification of will be coupled to signal after down-converted, carry out feedback gain adjustment process;

Radio frequency reception channel, for sending to quantifying unit by the signal after the process of feedback gain adjustment unit;

Quantifying unit, sends to back coupling power statistic unit after being quantized by the signal after the process of feedback gain adjustment unit;

Back coupling power statistic unit, for carrying out power statistic to the digital signal received, and sends to calibration lock unit by this digital signal;

Calibration lock unit, carries out calibration synchronously to the original targeting sequencing that the digital signal received and nonlinear distortion Contrary compensation unit export;

Second digital Auto Gain adjustment unit, carries out digital Auto Gain adjustment process for the signal after calibration is synchronous;

Coefficient acquiring unit, for the digital signal of will carry out through the second digital Auto Gain adjustment unit after digital Auto Gain adjustment process and the signal that exports of nonlinear distortion Contrary compensation unit, carries out estimation and obtains nonlinear distortion Contrary compensation coefficient.

According to the embodiment of the present invention, described Digital Up Convert unit specifically comprises:

More than one digital interpolative filter unit and overlapped elements, wherein,

Each digital interpolative filter unit, first carries out carrier frequency automatic gain adjustment process to the signal on each carrier frequency, and carries out filtering interpolation to the signal after carrier frequency automatic gain adjustment process, completes frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing;

Overlapped elements, for carrying out the overlap of multi-carrier frequency signals to the signal carrying out each carrier frequency after frequency spectrum migration.

According to the embodiment of the present invention, described each digital interpolative filter unit, comprising:

Carrier frequency automatic gain adjustment unit, for carrying out carrier frequency automatic gain adjustment process to the signal on corresponding carrier frequency;

Filtering interpolation unit, carries out filtering interpolation to the signal after carrier frequency automatic gain adjustment process, completes frequency spectrum sizing;

Frequency spectrum migration units, for carrying out frequency spectrum migration to the signal after frequency spectrum sizing.

According to the embodiment of the present invention, described feedback unit, for carrying out feedback gain adjustment process according to following formula,

$\mathrm{fb}\_{\mathrm{pwr}}_{\mathrm{dBFS}}=10*{\log }_{10}\left(\frac{\underset{t}{\overset{\mathrm{len}}{\mathrm{\Σ}}}{\mathrm{yi}}^2\left(t\right)+{\mathrm{yq}}^2\left(t\right)}{2^{30}*\mathrm{len}}\right)$

Wherein, fb_pwr _dBFSrepresent the back coupling power gain after carrying out feedback gain adjustment process, len represents the length of signal, and y represents feedback signal, and t represents sampling instant.

According to the embodiment of the present invention, described feedback unit, in calibration synchronizing process, according to following formula adjustment feedback signal amplitude:

$y=y0*\frac{\mathrm{RMS}\left(z\right)}{\mathrm{RMS}\left(y\right)}$

Wherein RMS (z) is as follows:

$\mathrm{RMS}\left(z\right)=\sqrt{\frac{\underset{t=1}{\overset{\mathrm{len}}{\mathrm{\Σ}}}{\mathrm{zi}}^2\left(t\right)+{\mathrm{zj}}^2\left(t\right)}{\mathrm{len}}}$

Wherein RMS (y) is as follows:

$\mathrm{RMS}\left(y\right)=\sqrt{\frac{\underset{t=1}{\overset{\mathrm{len}}{\mathrm{\Σ}}}{\mathrm{yi}}^2\left(t\right)+{\mathrm{yj}}^2\left(t\right)}{\mathrm{len}}}$

Wherein, y represents the feedback signal after calibration, and y0 represents the reflected signal before calibration, and z represents and transmits, and t represents different sampling instants, and len represents the length of signal.

According to the embodiment of the present invention, described first digital Auto Gain adjustment unit specifically comprises:

Displacement detector, for detecting the highest position of coming into force of supplied with digital signal, and according to the direction of displacement of the difference determination supplied with digital signal of this highest come into force position and reference value and figure place;

First shift register, is connected with the output of displacement detector, to supplied with digital signal displacement N position under the control of displacement detector;

FFT module, is connected with the first shift register, the digital signal after displacement is transformed from the time domain to frequency domain, obtains frequency domain digital signal;

Extremum extracting module, is connected with FFT module, detects the extreme value of the absolute value of frequency domain digital signal;

Corresponding look-up table block, is connected with extremum extracting module, and tabling look-up according to the extreme value of the absolute value of frequency domain digital signal obtains corresponding gain coefficient K;

Gain tuning acquisition module, is connected with corresponding look-up table block with FFT module, is multiplied by frequency domain digital signal with gain coefficient K, obtains the digital signal exported;

According to the embodiment of the present invention, described extremum extracting module comprises:

Bit detecting unit, for detecting the maximal bit figure place of the absolute value of frequency domain digital signal;

Extremum extracting device, for detecting the extreme value of the absolute value of frequency domain digital signal;

Second shift register, is connected with extremum extracting device with bit detecting unit, according to described maximal bit figure place, to described extreme value displacement M position;

Subtracter, is connected with the second shift register, from the extreme value behind displacement M position, deduct constant 2 ^frac, wherein, Frac be greater than 0 positive integer;

3rd shift register, to subtracter export difference move to left | the operation of S| position, and end zero padding, S be less than 0 negative integer.

According to the embodiment of the present invention, described through-put power amplifying unit specifically comprises: the first power amplification circuit, the first low noise amplifier circuit, power supply and control circuit, an I/O coupler, and power supply and control circuit provide power supply and control signal;

Described first power amplification circuit comprises the first input coupler, first adjustable decay device, the first order amplifier of the first power amplification circuit, first temperature-compensating decay device, the second level amplifier of the first power amplification circuit, the third level amplifier of the first power amplification circuit, the fourth stage amplifier of the first power amplification circuit, first directional coupler, first circulator, first radio-frequency (RF) switch of the first power amplification circuit, first coupler, second radio-frequency (RF) switch of the first power amplification circuit, first ohmic load, second ohmic load, first input coupler connects the input of the first adjustable decay device, the output of the first adjustable decay device connects the input of the first order amplifier of the first power amplification circuit, the output of the first order amplifier of the first power amplification circuit connects the first temperature-compensating decay device input, the output of the first temperature-compensating decay device connects the input of the second level amplifier of the first power amplification circuit, the output of the second level amplifier of the first power amplification circuit connects the input of the third level amplifier of the first power amplification circuit, the output of the third level amplifier of the first power amplification circuit connects the input of the fourth stage amplifier of the first power amplification circuit, the output of the fourth stage amplifier of the first power amplification circuit connects the input of the first directional coupler, first directional coupler exports two paths of signals, the first via output of the first directional coupler is connected with the first input end of the second radio-frequency (RF) switch of the first power amplification circuit by the coupled end of the first directional coupler, second road output of the first power amplification circuit directional coupler is connected with the first port of the first circulator, second port of the first circulator exports and is connected with the input of an I/O coupler, 3rd port of the first circulator is connected with the input of the first radio-frequency (RF) switch of the first power amplification circuit, first output of the first radio-frequency (RF) switch of the first power amplification circuit is connected with the input of the first coupler, the output of the first coupler is connected with the second input of the second radio-frequency (RF) switch of the first power amplification circuit, the isolation end of the first coupler is connected with the first ohmic load, and-90 degree coupled end of the first coupler are connected with the second ohmic load, second output of the first radio-frequency (RF) switch of the first power amplification circuit is connected with the input of the first order amplifier of the first low noise amplifier circuit, and the output of the second radio-frequency (RF) switch of the first power amplification circuit is connected with the second input of the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit,

Described first low noise amplifier circuit comprises the first order amplifier of the first low noise amplifier circuit, the second level amplifier of the first low noise amplifier circuit, the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit, the first ceramic filter and first export coupler; The output of the first order amplifier of the first low noise amplifier circuit is connected with the input of the second level amplifier of the first low noise amplifier circuit, the first input end of the output of the second level amplifier of the first low noise amplifier circuit and the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit, the output of the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit is connected with the first ceramic filter input, and the output and first of the first ceramic filter exports coupler and is connected.

According to the embodiment of the present invention, also propose a kind of method for regulating emission power, said method comprising the steps of:

In the time of setting, the targeting sequencing prestored is carried out transmission automatic gain adjustment process; And described targeting sequencing is sent to nonlinear distortion Contrary compensation unit; The process of nonlinear distortion Contrary compensation is carried out to described targeting sequencing; Setting time to the overlap of multi-carrier frequency service signal after export; The high speed signal obtained after overlap is carried out peak to average attenuation processing; The nonlinear distortion Contrary compensation coefficient preserved is utilized to carry out the process of nonlinear distortion Contrary compensation to the signal after peak to average attenuation processing;

Signal after the process of nonlinear distortion Contrary compensation is carried out figure automatic control gain process; Signal after figure automatic control gain process is carried out simulated; After signal after simulated being carried out transmission gain adjustment control treatment able to programme, export after carrying out power amplification;

The signal that the power amplification of being coupled to is exported signal after down-converted, carry out feedback gain adjustment process successively, quantize, the gain of wherein feedback gain adjustment sets according to the multiplication factor of through-put power amplifying unit; Signal after quantizing is carried out power statistic, and it is synchronous to carry out calibration to the signal after quantification and the original targeting sequencing after the process of nonlinear distortion Contrary compensation; Signal after calibration is synchronous carries out digital Auto Gain adjustment; Carrying out estimation according to described nonlinear distortion Contrary compensation output signal and feedback signal and obtain nonlinear distortion Contrary compensation coefficient, utilizing the nonlinear distortion Contrary compensation coefficient that the nonlinear distortion Contrary compensation coefficient obtained is preserved for upgrading nonlinear distortion Contrary compensation unit.

According to the embodiment of the present invention, the method comprises further:

Before multi-carrier frequency overlap, first carrier frequency automatic gain adjustment process is carried out to the signal on each carrier frequency, and filtering interpolation is carried out to the signal after carrier frequency automatic gain adjustment process, complete frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing, completes the overlap of multi-carrier frequency signals simultaneously; High speed signal after overlap is carried out peak to average attenuation processing;

According to the nonlinear distortion Contrary compensation coefficient preserved, the process of nonlinear distortion Contrary compensation is carried out to the signal after peak to average attenuation processing received.

Relative to prior art, transmission power adjustment device of the present invention is by relevant analog-and digital-Gain tuning process, compensate for nonlinear distortion, have adjusted the gain range of the signal after targeting sequencing and the process of nonlinear distortion Contrary compensation, reduce power consumption, improve efficiency and robustness, and then complete the Gain tuning to whole transmitting chain.

Accompanying drawing explanation

By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:

Figure 1 show the transmission power adjustment apparatus structure schematic diagram according to embodiment of the present invention;

Figure 2 illustrate the feedback unit structural representation according to embodiment of the present invention;

Figure 3 show the first digital Auto Gain adjustment unit structural representation according to embodiment of the present invention.

Embodiment

Below with reference to accompanying drawings illustrative embodiments of the present disclosure is described in more detail.Although show illustrative embodiments of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the execution mode of setting forth here.On the contrary, provide these execution modes to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.

According to the embodiment of the present invention, propose a kind of transmission power adjustment device, as shown in Figure 1, described adjusting device comprises:

Transmission automatic gain adjustment unit, carries out transmission automatic gain adjustment process for the time in setting by predetermined targeting sequencing;

Digital Up Convert unit, for setting time to multi-carrier frequency service signal complete filtering interpolation lay equal stress on poststack export;

Peak to average attenuation units, carries out peak to average attenuation processing for the high speed signal will obtained after Digital Up Convert cells overlap;

Nonlinear distortion Contrary compensation unit, carries out the process of nonlinear distortion Contrary compensation for utilizing the nonlinear distortion Contrary compensation coefficient of preservation to described targeting sequencing; Utilize the nonlinear distortion Contrary compensation coefficient that the up-to-date nonlinear distortion Contrary compensation coefficient update self obtained is preserved; The nonlinear distortion Contrary compensation coefficient preserved is utilized to carry out the process of nonlinear distortion Contrary compensation to the signal after the peak to average attenuation processing received;

First digital Auto Gain adjustment unit, for carrying out figure automatic control gain process by the signal after the process of nonlinear distortion Contrary compensation;

Inverse quantization unit, for being undertaken simulated by the signal after figure automatic control gain process;

Transmission gain adjustment unit able to programme, for carrying out transmission gain adjustment control treatment able to programme by the signal after simulated;

Through-put power amplifying unit, exports after carrying out power amplification to the signal after transmission gain adjustment control treatment able to programme;

Feedback unit, when signal for exporting at through-put power amplifying unit is targeting sequencing, the signal that the power amplification of being coupled to is exported signal after down-converted, carry out feedback gain adjustment process successively, quantize, the gain of wherein feedback gain adjustment sets according to the multiplication factor of through-put power amplifying unit; Signal after quantizing is carried out power statistic, calibration is carried out synchronously to the original targeting sequencing that the signal after quantification and nonlinear distortion Contrary compensation unit export; Signal after calibration is synchronous carries out digital Auto Gain adjustment; Utilize the output signal of nonlinear distortion Contrary compensation unit and the targeting sequencing after digital Auto Gain adjustment process to carry out estimating to obtain up-to-date nonlinear distortion Contrary compensation coefficient, be supplied to nonlinear distortion Contrary compensation unit.

According to the embodiment of the present invention, described Digital Up Convert unit, also be further used for carrying out carrier frequency automatic gain adjustment process to the signal on each carrier frequency before multi-carrier frequency overlap, and filtering interpolation is carried out to the signal after carrier frequency automatic gain adjustment process, complete frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing.

According to the embodiment of the present invention, described feedback unit is used for according to the power of the output signal after the process of nonlinear distortion Contrary compensation and compares the signal power after quantizing, complete the power adjustment of feedback signal, be correlated with according to the output signal after feedback signal and the process of nonlinear distortion Contrary compensation, the calibration completing feedback signal and nonlinear distortion Contrary compensation signal is synchronous simultaneously.

According to the embodiment of the present invention, described feedback unit specifically comprises, as shown in Figure 2:

Feedback gain adjustment unit, the signal exported for the power amplification of will be coupled to signal after down-converted, carry out feedback gain adjustment process;

Radio frequency reception channel, for sending to quantifying unit by the signal after the process of feedback gain adjustment unit;

Quantifying unit, sends to back coupling power statistic unit after being quantized by the signal after the process of feedback gain adjustment unit;

Back coupling power statistic unit, for carrying out power statistic to the digital signal received, and sends to calibration lock unit by this digital signal;

Calibration lock unit, carries out calibration synchronously to the original targeting sequencing that the digital signal received and nonlinear distortion Contrary compensation unit export;

Second digital Auto Gain adjustment unit, carries out digital Auto Gain adjustment process for the signal after calibration is synchronous;

Coefficient acquiring unit, for the digital signal of will carry out through the second digital Auto Gain adjustment unit after digital Auto Gain adjustment process and the signal that exports of nonlinear distortion Contrary compensation unit, carries out estimation and obtains nonlinear distortion Contrary compensation coefficient.

According to the embodiment of the present invention, described Digital Up Convert unit specifically comprises:

More than one digital interpolative filter unit and overlapped elements, wherein,

Each digital interpolative filter unit, first carries out carrier frequency automatic gain adjustment process to the signal on each carrier frequency, and carries out filtering interpolation to the signal after carrier frequency automatic gain adjustment process, completes frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing;

Overlapped elements, for carrying out the overlap of multi-carrier frequency signals to the signal carrying out each carrier frequency after frequency spectrum migration.

According to the embodiment of the present invention, described each digital interpolative filter unit, comprising:

Carrier frequency automatic gain adjustment unit, for carrying out carrier frequency automatic gain adjustment process to the signal on corresponding carrier frequency;

Filtering interpolation unit, carries out filtering interpolation to the signal after carrier frequency automatic gain adjustment process, completes frequency spectrum sizing;

Frequency spectrum migration units, for carrying out frequency spectrum migration to the signal after frequency spectrum sizing.

According to the embodiment of the present invention, described feedback unit, for carrying out feedback gain adjustment process according to following formula,

$\mathrm{fb}\_{\mathrm{pwr}}_{\mathrm{dBFS}}=10*{\log }_{10}\left(\frac{\underset{t}{\overset{\mathrm{len}}{\mathrm{\Σ}}}{\mathrm{yi}}^2\left(t\right)+{\mathrm{yq}}^2\left(t\right)}{2^{30}*\mathrm{len}}\right)$

Wherein, fb_pwr _dBFSrepresent the back coupling power gain after carrying out feedback gain adjustment process, len represents the length of signal, and y represents feedback signal, and t represents sampling instant.

According to the embodiment of the present invention, described feedback unit, in calibration synchronizing process, according to following formula adjustment feedback signal amplitude:

$y=y0*\frac{\mathrm{RMS}\left(z\right)}{\mathrm{RMS}\left(y\right)}$

Wherein RMS (z) is as follows:

$\mathrm{RMS}\left(z\right)=\sqrt{\frac{\underset{t=1}{\overset{\mathrm{len}}{\mathrm{\Σ}}}{\mathrm{zi}}^2\left(t\right)+{\mathrm{zj}}^2\left(t\right)}{\mathrm{len}}}$

Wherein RMS (y) is as follows:

$\mathrm{RMS}\left(y\right)=\sqrt{\frac{\underset{t=1}{\overset{\mathrm{len}}{\mathrm{\Σ}}}{\mathrm{yi}}^2\left(t\right)+{\mathrm{yj}}^2\left(t\right)}{\mathrm{len}}}$

Wherein, y represents the feedback signal after calibration, and y0 represents the reflected signal before calibration, and z represents and transmits, and t represents different sampling instants, and len represents the length of signal.

According to the embodiment of the present invention, described first digital Auto Gain adjustment unit specifically comprises, as shown in Figure 3:

Displacement detector, for detecting the highest position of coming into force of supplied with digital signal, and according to the direction of displacement of the difference determination supplied with digital signal of this highest come into force position and reference value and figure place;

First shift register, is connected with the output of displacement detector, to supplied with digital signal displacement N position under the control of displacement detector;

FFT module, is connected with the first shift register, the digital signal after displacement is transformed from the time domain to frequency domain, obtains frequency domain digital signal;

Extremum extracting module, is connected with FFT module, detects the extreme value of the absolute value of frequency domain digital signal;

Corresponding look-up table block, is connected with extremum extracting module, and tabling look-up according to the extreme value of the absolute value of frequency domain digital signal obtains corresponding gain coefficient K;

Gain tuning acquisition module, is connected with corresponding look-up table block with FFT module, is multiplied by frequency domain digital signal with gain coefficient K, obtains the digital signal exported;

According to the embodiment of the present invention, described extremum extracting module comprises:

Bit detecting unit, for detecting the maximal bit figure place of the absolute value of frequency domain digital signal;

Extremum extracting device, for detecting the extreme value of the absolute value of frequency domain digital signal;

Second shift register, is connected with extremum extracting device with bit detecting unit, according to described maximal bit figure place, to described extreme value displacement M position;

Subtracter, is connected with the second shift register, from the extreme value behind displacement M position, deduct constant 2 ^frac, wherein, Frac be greater than 0 positive integer;

3rd shift register, to subtracter export difference move to left | the operation of S| position, and end zero padding, S be less than 0 negative integer.

According to the embodiment of the present invention, described through-put power amplifying unit specifically comprises (accompanying drawing is not shown): the first power amplification circuit, the first low noise amplifier circuit, power supply and control circuit, an I/O coupler, and power supply and control circuit provide power supply and control signal;

Described first power amplification circuit comprises the first input coupler, first adjustable decay device, the first order amplifier of the first power amplification circuit, first temperature-compensating decay device, the second level amplifier of the first power amplification circuit, the third level amplifier of the first power amplification circuit, the fourth stage amplifier of the first power amplification circuit, first directional coupler, first circulator, first radio-frequency (RF) switch of the first power amplification circuit, first coupler, second radio-frequency (RF) switch of the first power amplification circuit, first ohmic load, second ohmic load, first input coupler connects the input of the first adjustable decay device, the output of the first adjustable decay device connects the input of the first order amplifier of the first power amplification circuit, the output of the first order amplifier of the first power amplification circuit connects the first temperature-compensating decay device input, the output of the first temperature-compensating decay device connects the input of the second level amplifier of the first power amplification circuit, the output of the second level amplifier of the first power amplification circuit connects the input of the third level amplifier of the first power amplification circuit, the output of the third level amplifier of the first power amplification circuit connects the input of the fourth stage amplifier of the first power amplification circuit, the output of the fourth stage amplifier of the first power amplification circuit connects the input of the first directional coupler, first directional coupler exports two paths of signals, the first via output of the first directional coupler is connected with the first input end of the second radio-frequency (RF) switch of the first power amplification circuit by the coupled end of the first directional coupler, second road output of the first power amplification circuit directional coupler is connected with the first port of the first circulator, second port of the first circulator exports and is connected with the input of an I/O coupler, 3rd port of the first circulator is connected with the input of the first radio-frequency (RF) switch of the first power amplification circuit, first output of the first radio-frequency (RF) switch of the first power amplification circuit is connected with the input of the first coupler, the output of the first coupler is connected with the second input of the second radio-frequency (RF) switch of the first power amplification circuit, the isolation end of the first coupler is connected with the first ohmic load, and-90 degree coupled end of the first coupler are connected with the second ohmic load, second output of the first radio-frequency (RF) switch of the first power amplification circuit is connected with the input of the first order amplifier of the first low noise amplifier circuit, and the output of the second radio-frequency (RF) switch of the first power amplification circuit is connected with the second input of the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit,

Described first low noise amplifier circuit comprises the first order amplifier of the first low noise amplifier circuit, the second level amplifier of the first low noise amplifier circuit, the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit, the first ceramic filter and first export coupler; The output of the first order amplifier of the first low noise amplifier circuit is connected with the input of the second level amplifier of the first low noise amplifier circuit, the first input end of the output of the second level amplifier of the first low noise amplifier circuit and the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit, the output of the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit is connected with the first ceramic filter input, and the output and first of the first ceramic filter exports coupler and is connected.

According to another embodiment of the present invention, also propose a kind of method for regulating emission power, said method comprising the steps of:

In the time of setting, the targeting sequencing prestored is carried out transmission automatic gain adjustment process; And described targeting sequencing is sent to nonlinear distortion Contrary compensation unit; The process of nonlinear distortion Contrary compensation is carried out to described targeting sequencing; Setting time to the overlap of multi-carrier frequency service signal after export; The high speed signal obtained after overlap is carried out peak to average attenuation processing; The nonlinear distortion Contrary compensation coefficient preserved is utilized to carry out the process of nonlinear distortion Contrary compensation to the signal after peak to average attenuation processing;

Signal after the process of nonlinear distortion Contrary compensation is carried out figure automatic control gain process; Signal after figure automatic control gain process is carried out simulated; After signal after simulated being carried out transmission gain adjustment control treatment able to programme, export after carrying out power amplification;

The signal that the power amplification of being coupled to is exported signal after down-converted, carry out feedback gain adjustment process successively, quantize, the gain of wherein feedback gain adjustment sets according to the multiplication factor of through-put power amplifying unit; Signal after quantizing is carried out power statistic, and it is synchronous to carry out calibration to the signal after quantification and the original targeting sequencing after the process of nonlinear distortion Contrary compensation; Signal after calibration is synchronous carries out digital Auto Gain adjustment; Carrying out estimation according to described nonlinear distortion Contrary compensation output signal and feedback signal and obtain nonlinear distortion Contrary compensation coefficient, utilizing the nonlinear distortion Contrary compensation coefficient that the nonlinear distortion Contrary compensation coefficient obtained is preserved for upgrading nonlinear distortion Contrary compensation unit.

According to the embodiment of the present invention, the method comprises further:

Before multi-carrier frequency overlap, first carrier frequency automatic gain adjustment process is carried out to the signal on each carrier frequency, and filtering interpolation is carried out to the signal after carrier frequency automatic gain adjustment process, complete frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing, completes the overlap of multi-carrier frequency signals simultaneously; High speed signal after overlap is carried out peak to average attenuation processing;

According to the nonlinear distortion Contrary compensation coefficient preserved, the process of nonlinear distortion Contrary compensation is carried out to the signal after peak to average attenuation processing received.

The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.

Claims (10)

1. a transmission power adjustment device, described adjusting device comprises:

Transmission automatic gain adjustment unit, carries out transmission automatic gain adjustment process for the time in setting by predetermined targeting sequencing;

Digital Up Convert unit, for setting time to multi-carrier frequency service signal complete filtering interpolation lay equal stress on poststack export;

Peak to average attenuation units, carries out peak to average attenuation processing for the high speed signal will obtained after Digital Up Convert cells overlap;

Nonlinear distortion Contrary compensation unit, carries out the process of nonlinear distortion Contrary compensation for utilizing the nonlinear distortion Contrary compensation coefficient of preservation to described targeting sequencing; Utilize the nonlinear distortion Contrary compensation coefficient that the up-to-date nonlinear distortion Contrary compensation coefficient update self obtained is preserved; The nonlinear distortion Contrary compensation coefficient preserved is utilized to carry out the process of nonlinear distortion Contrary compensation to the signal after the peak to average attenuation processing received;

First digital Auto Gain adjustment unit, for carrying out figure automatic control gain process by the signal after the process of nonlinear distortion Contrary compensation;

Inverse quantization unit, for being undertaken simulated by the signal after figure automatic control gain process;

Transmission gain adjustment unit able to programme, for carrying out transmission gain adjustment control treatment able to programme by the signal after simulated;

Through-put power amplifying unit, exports after carrying out power amplification to the signal after transmission gain adjustment control treatment able to programme;

Feedback unit, when signal for exporting at through-put power amplifying unit is targeting sequencing, the signal that the power amplification of being coupled to is exported signal after down-converted, carry out feedback gain adjustment process successively, quantize, the gain of wherein feedback gain adjustment sets according to the multiplication factor of through-put power amplifying unit; Signal after quantizing is carried out power statistic, calibration is carried out synchronously to the original targeting sequencing that the signal after quantification and nonlinear distortion Contrary compensation unit export; Signal after calibration is synchronous carries out digital Auto Gain adjustment; Utilize the output signal of nonlinear distortion Contrary compensation unit and the targeting sequencing after digital Auto Gain adjustment process to carry out estimating to obtain up-to-date nonlinear distortion Contrary compensation coefficient, be supplied to nonlinear distortion Contrary compensation unit.

2. a device as claimed in claim 1, described Digital Up Convert unit, also be further used for carrying out carrier frequency automatic gain adjustment process to the signal on each carrier frequency before multi-carrier frequency overlap, and filtering interpolation is carried out to the signal after carrier frequency automatic gain adjustment process, complete frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing;

Described Digital Up Convert unit specifically comprises:

More than one digital interpolative filter unit and overlapped elements, wherein,

Each digital interpolative filter unit, first carries out carrier frequency automatic gain adjustment process to the signal on each carrier frequency, and carries out filtering interpolation to the signal after carrier frequency automatic gain adjustment process, completes frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing;

Overlapped elements, for carrying out the overlap of multi-carrier frequency signals to the signal carrying out each carrier frequency after frequency spectrum migration.

3. a device as claimed in claim 1, described feedback unit is used for according to the power of the output signal after the process of nonlinear distortion Contrary compensation and compares the signal power after quantizing, complete the power adjustment of feedback signal, be correlated with according to the output signal after feedback signal and the process of nonlinear distortion Contrary compensation, the calibration completing feedback signal and nonlinear distortion Contrary compensation signal is synchronous simultaneously;

Described feedback unit specifically comprises:

Feedback gain adjustment unit, the signal exported for the power amplification of will be coupled to signal after down-converted, carry out feedback gain adjustment process;

Radio frequency reception channel, for sending to quantifying unit by the signal after the process of feedback gain adjustment unit;

Quantifying unit, sends to back coupling power statistic unit after being quantized by the signal after the process of feedback gain adjustment unit;

Back coupling power statistic unit, for carrying out power statistic to the digital signal received, and sends to calibration lock unit by this digital signal;

Calibration lock unit, carries out calibration synchronously to the original targeting sequencing that the digital signal received and nonlinear distortion Contrary compensation unit export;

Second digital Auto Gain adjustment unit, carries out digital Auto Gain adjustment process for the signal after calibration is synchronous;

Coefficient acquiring unit, for the digital signal of will carry out through the second digital Auto Gain adjustment unit after digital Auto Gain adjustment process and the signal that exports of nonlinear distortion Contrary compensation unit, carries out estimation and obtains nonlinear distortion Contrary compensation coefficient.

4. a device as claimed in claim 2, described each digital interpolative filter unit, comprising:

Carrier frequency automatic gain adjustment unit, for carrying out carrier frequency automatic gain adjustment process to the signal on corresponding carrier frequency;

Filtering interpolation unit, carries out filtering interpolation to the signal after carrier frequency automatic gain adjustment process, completes frequency spectrum sizing;

Frequency spectrum migration units, for carrying out frequency spectrum migration to the signal after frequency spectrum sizing.

5. a device as claimed in claim 3, described feedback unit, for carrying out feedback gain adjustment process according to following formula,

Wherein, fb_pwr _dBFSrepresent the back coupling power gain after carrying out feedback gain adjustment process, len represents the length of signal, and y represents feedback signal, and t represents sampling instant;

Described feedback unit, in calibration synchronizing process, according to following formula adjustment feedback signal amplitude:

Wherein RMS (z) is as follows:

Wherein RMS (y) is as follows:

Wherein, y represents the feedback signal after calibration, and y0 represents the reflected signal before calibration, and z represents and transmits, and t represents different sampling instants, and len represents the length of signal.

6. a device as claimed in claim 1, described first digital Auto Gain adjustment unit specifically comprises:

Displacement detector, for detecting the highest position of coming into force of supplied with digital signal, and according to the direction of displacement of the difference determination supplied with digital signal of this highest come into force position and reference value and figure place;

First shift register, is connected with the output of displacement detector, to supplied with digital signal displacement N position under the control of displacement detector;

FFT module, is connected with the first shift register, the digital signal after displacement is transformed from the time domain to frequency domain, obtains frequency domain digital signal;

Extremum extracting module, is connected with FFT module, detects the extreme value of the absolute value of frequency domain digital signal;

Corresponding look-up table block, is connected with extremum extracting module, and tabling look-up according to the extreme value of the absolute value of frequency domain digital signal obtains corresponding gain coefficient K;

Gain tuning acquisition module, is connected with corresponding look-up table block with FFT module, is multiplied by frequency domain digital signal with gain coefficient K, obtains the digital signal exported.

7. a device as claimed in claim 6, described extremum extracting module comprises:

Bit detecting unit, for detecting the maximal bit figure place of the absolute value of frequency domain digital signal;

Extremum extracting device, for detecting the extreme value of the absolute value of frequency domain digital signal;

Second shift register, is connected with extremum extracting device with bit detecting unit, according to described maximal bit figure place, to described extreme value displacement M position;

Subtracter, is connected with the second shift register, from the extreme value behind displacement M position, deduct constant 2 ^frac, wherein, Frac be greater than 0 positive integer;

3rd shift register, to subtracter export difference move to left | the operation of S| position, and end zero padding, S be less than 0 negative integer.

8. a device as claimed in claim 1, described through-put power amplifying unit specifically comprises: the first power amplification circuit, the first low noise amplifier circuit, power supply and control circuit, an I/O coupler, and power supply and control circuit provide power supply and control signal;

Described first power amplification circuit comprises the first input coupler, first adjustable decay device, the first order amplifier of the first power amplification circuit, first temperature-compensating decay device, the second level amplifier of the first power amplification circuit, the third level amplifier of the first power amplification circuit, the fourth stage amplifier of the first power amplification circuit, first directional coupler, first circulator, first radio-frequency (RF) switch of the first power amplification circuit, first coupler, second radio-frequency (RF) switch of the first power amplification circuit, first ohmic load, second ohmic load, first input coupler connects the input of the first adjustable decay device, the output of the first adjustable decay device connects the input of the first order amplifier of the first power amplification circuit, the output of the first order amplifier of the first power amplification circuit connects the first temperature-compensating decay device input, the output of the first temperature-compensating decay device connects the input of the second level amplifier of the first power amplification circuit, the output of the second level amplifier of the first power amplification circuit connects the input of the third level amplifier of the first power amplification circuit, the output of the third level amplifier of the first power amplification circuit connects the input of the fourth stage amplifier of the first power amplification circuit, the output of the fourth stage amplifier of the first power amplification circuit connects the input of the first directional coupler, first directional coupler exports two paths of signals, the first via output of the first directional coupler is connected with the first input end of the second radio-frequency (RF) switch of the first power amplification circuit by the coupled end of the first directional coupler, second road output of the first power amplification circuit directional coupler is connected with the first port of the first circulator, second port of the first circulator exports and is connected with the input of an I/O coupler, 3rd port of the first circulator is connected with the input of the first radio-frequency (RF) switch of the first power amplification circuit, first output of the first radio-frequency (RF) switch of the first power amplification circuit is connected with the input of the first coupler, the output of the first coupler is connected with the second input of the second radio-frequency (RF) switch of the first power amplification circuit, the isolation end of the first coupler is connected with the first ohmic load, and-90 degree coupled end of the first coupler are connected with the second ohmic load, second output of the first radio-frequency (RF) switch of the first power amplification circuit is connected with the input of the first order amplifier of the first low noise amplifier circuit, and the output of the second radio-frequency (RF) switch of the first power amplification circuit is connected with the second input of the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit,

Described first low noise amplifier circuit comprises the first order amplifier of the first low noise amplifier circuit, the second level amplifier of the first low noise amplifier circuit, the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit, the first ceramic filter and first export coupler; The output of the first order amplifier of the first low noise amplifier circuit is connected with the input of the second level amplifier of the first low noise amplifier circuit, the first input end of the output of the second level amplifier of the first low noise amplifier circuit and the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit, the output of the 3rd radio-frequency (RF) switch of the first low noise amplifier circuit is connected with the first ceramic filter input, and the output and first of the first ceramic filter exports coupler and is connected.

9., as one of them transmission power adjustment device of claim 1-8 carries out a method for transmission power adjustment, said method comprising the steps of:

In the time of setting, the targeting sequencing prestored is carried out transmission automatic gain adjustment process; And described targeting sequencing is sent to nonlinear distortion Contrary compensation unit; The process of nonlinear distortion Contrary compensation is carried out to described targeting sequencing; Setting time to the overlap of multi-carrier frequency service signal after export; The high speed signal obtained after overlap is carried out peak to average attenuation processing; The nonlinear distortion Contrary compensation coefficient preserved is utilized to carry out the process of nonlinear distortion Contrary compensation to the signal after peak to average attenuation processing;

Signal after the process of nonlinear distortion Contrary compensation is carried out figure automatic control gain process; Signal after figure automatic control gain process is carried out simulated; After signal after simulated being carried out transmission gain adjustment control treatment able to programme, export after carrying out power amplification;

The signal that the power amplification of being coupled to is exported signal after down-converted, carry out feedback gain adjustment process successively, quantize, the gain of wherein feedback gain adjustment sets according to the multiplication factor of through-put power amplifying unit; Signal after quantizing is carried out power statistic, and it is synchronous to carry out calibration to the signal after quantification and the original targeting sequencing after the process of nonlinear distortion Contrary compensation; Signal after calibration is synchronous carries out digital Auto Gain adjustment; Carrying out estimation according to described nonlinear distortion Contrary compensation output signal and feedback signal and obtain nonlinear distortion Contrary compensation coefficient, utilizing the nonlinear distortion Contrary compensation coefficient that the nonlinear distortion Contrary compensation coefficient obtained is preserved for upgrading nonlinear distortion Contrary compensation unit.

10. a method as claimed in claim 9, the method comprises further:

Before multi-carrier frequency overlap, first carrier frequency automatic gain adjustment process is carried out to the signal on each carrier frequency, and filtering interpolation is carried out to the signal after carrier frequency automatic gain adjustment process, complete frequency spectrum sizing; Frequency spectrum migration is carried out to the signal after frequency spectrum sizing, completes the overlap of multi-carrier frequency signals simultaneously; High speed signal after overlap is carried out peak to average attenuation processing;

According to the nonlinear distortion Contrary compensation coefficient preserved, the process of nonlinear distortion Contrary compensation is carried out to the signal after peak to average attenuation processing received.