CN103517390B - Power control method and device - Google Patents
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Abstract
The invention discloses a power control method and device. The method comprises: for one signal transmission channel, performing gain adjustment on carrier signals with at least two patterns which are transmitted in the signal transmission channel respectively and performing combination processing on the carrier signals on which the gain adjustment has been performed and thus a combined signal is obtained; determining a forward power value and a feedback power value corresponding to the combined signal; according to the forward power value and the feedback power value, determining a power output value corresponding to the signal transmission channel; and according to the obtained power output value, performing power control on the signal transmission channel. Through technical scheme in the invention, the accuracy of performing the power control on the signal transmission channel is better improved.
Description
Technical field
The present invention relates to communication technical field, more particularly, to a kind of Poewr control method and device.
Background technology
In the communication system that multi-standard radiofrequency signal coexists, the Main Resources in downlink are the different systems of Base Transmitter
The carrier power of formula.Wherein, limit can number of users that may be served amount, quality of service and Base Transmitter signal for maximum carrier power
Coverage.Exactly by the radio frequency of output（RF, Radio Frequency）Power is reported to base station so that base station can be with
Effectively utilize existing power such that it is able to save resources and can also reduce the electromagnetic radiation in wireless communications environment do
Disturb.
In global system for mobile communications (GSM, Global System for Mobile communications), broadband
Code division multiple address communication system (WCDMA, Wideband Code Division Multiple Access), OFDM lead to
Letter system (OFDM, Orthogonal Frequency Division Multiplexing) and use Multi-Carrier Power Amplifier
In the communication system of (MCPA, Multi-Carrier Power Amplifier), according to third generation partner program（3GPP,
The 3rd Generation Partnership Project）Regulation, for each communication system in for up
Be standardized with the control of the fast power of downlink, but due to wireless communications environment be it is time dependent, for example
There is no enough carrier powers in base station in a certain duration to meet the business demand of all users, then need to take power control
Method processed, to realize processing this problem with quick acting (fast action) in a short time scale.
When carrying out Power Control for a kind of communication system of standard in prior art, as shown in figure 1, main processes
For：A kind of carrier signal of the standard of Base Transmitter for transmitting in a signal transmission passage, by frequency-conversion processing and
Gain tuning, corresponding forward power value P1 of the carrier signal after being adjusted, the carrier signal after Gain tuning is by numeral
By the outfan of splitter after pre-distortion, digital-to-analogue conversion process, transmit in being coupled to feedback link, and in feedback link
In by after analog digital conversion, obtaining corresponding feedback power value P2 of the carrier signal, forward power value P1 that will finally obtain
With feedback power value P2 by computing, it is determined that the output power value of the transmission channel of the carrier signal of this kind of standard is transmitted, will be true
The output power value of the passage made reports upper layer software (applications) to carry out Power Control.But signal of communication is in transmitting procedure
In, as the change of communication environment can produce interference signal, interference signal can be transmitted to feedback link together with signal of communication, be made
It not is real performance number to obtain the performance number for finally obtaining so that carry out work(according to the performance number for obtaining to signal transmission passage
When rate is controlled, accuracy is relatively low.
In sum, the Poewr control method for proposing in prior art is to carry out power based on a kind of radiofrequency signal of standard
Control, in the communication system of multimode communication signal coexistence, the Poewr control method proposed using prior art, to corresponding
When signal transmission passage carries out Power Control, accuracy is relatively low.
The content of the invention
A kind of Poewr control method and device is embodiments provided, preferably can be improved to signal transmission passage
Carry out accuracy during Power Control.
Technical scheme provided in an embodiment of the present invention is as follows：
A kind of Poewr control method, including：For a signal transmission passage, to transmitting in the signal transmission passage
The carrier signal of at least two standards carry out Gain tuning respectively, and the carrier signal carried out after Gain tuning is combined
Process and obtain combining signal；Determine the corresponding forward power value of the combining signal and feedback power value；According to determining
Forward power value and the feedback power value, determine the corresponding power output value of the signal transmission passage, according to the power for obtaining
Output valve, carries out Power Control to the signal transmission passage.
A kind of output control device, including：Combining signal obtaining unit, for for a signal transmission passage, to
The carrier signal of at least two standards transmitted in the signal transmission passage carries out Gain tuning respectively, and will carry out gain tune
Carrier signal after whole is combined process and obtains combining signal；Determining unit, for obtaining according to combining signal obtaining unit
Combining signal determine the corresponding forward power value of the combining signal and feedback power value；Power output value obtaining unit, uses
In the forward power value and the feedback power value that determine according to determining unit, the corresponding work(of the signal transmission passage is determined
Rate output valve, according to the power output value for obtaining, carries out Power Control to the signal transmission passage.
Using above-mentioned technical proposal, in the communication system that multiple types signal of communication coexists, for a signal transmission
Passage, the carrier signal of the different systems to transmitting in the signal transmission passage are closed after carrying out Gain tuning and combining process
Road signal, and determine the corresponding forward power value of the combining signal and feedback power value, finally by forward power value and instead
Feedback performance number, determines the corresponding power output value of the signal transmission passage, and according to the power output value for obtaining, to the signal
Transmission channel carries out Power Control, such that it is able to preferably realize, in the case of multimode communication signal coexistence, improving to letter
Number transmission channel carries out the accuracy of Power Control.
Description of the drawings
During Fig. 1 is prior art, the power control principle schematic diagram of proposition；
During Fig. 2 is the embodiment of the present invention one, the Poewr control method flow chart of proposition；
During Fig. 3 is the embodiment of the present invention one, the structure composition schematic diagram of the output control device of proposition；
During Fig. 4 is the embodiment of the present invention two, the power control principle schematic diagram of proposition；
During Fig. 5 is the embodiment of the present invention two, the RRU working-flow figures of proposition；
During Fig. 6 is the embodiment of the present invention two, the Poewr control method flow chart of proposition；
During Fig. 7 is the embodiment of the present invention two, the frequency hopping process flow figure of proposition；
During Fig. 8 is the embodiment of the present invention two, the equaliser structure schematic diagram of the transversal filter composition of proposition；
During Fig. 9 a are prior art, the wave testing figure in the 150MHz feedback bandwidths of proposition；
During Fig. 9 b are the embodiment of the present invention two, the 8 system number of employing of proposition realizes the synthesis response design sketch of equalizer；
During Fig. 9 c are the embodiment of the present invention two, the 12 system number of employing of proposition realizes the synthesis response design sketch of equalizer.
Specific embodiment
As, in prior art, Poewr control method is carried out for a kind of communication system of standard, i.e., pass in signal
In defeated passage only have a kind of carrier signal transmission of standard, it is impossible to realize in a signal transmission passage, if it is various not
When coexisting with the signal of communication of standard, the corresponding power output value of the signal transmission passage is accurately determined so as to the letter
When number transmission channel carries out power and adjusts, the relatively low problem of accuracy, embodiment of the present invention technique proposed herein scheme, one
In individual signal transmission passage, the carrier signal of the different systems first to transmitting in the signal transmission passage is combined and processes
To combining signal, then by determining the forward power value and feedback power value of the combining signal, obtain the signal transmission and lead to
The corresponding power output value in road, carries out Power Control according to the power output value for obtaining to the signal transmission passage, can be preferable
Realize that when multimode communication signal is transmitted in a signal transmission passage jointly raising is carried out to the signal transmission passage in ground
The accuracy of power adjustment.
Below in conjunction with each accompanying drawing to embodiment of the present invention technical scheme it is main realize principle, specific embodiment and
Which is set forth in the beneficial effect that should be able to be reached.
Embodiment one：
The embodiment of the present invention one proposes a kind of Poewr control method here, as shown in Fig. 2 detailed process is as follows：
Step 11, receives the carrier signal of various different systems of Base Transmitter.
Wherein, the carrier signal of the different systems of Base Transmitter can be, but not limited to be GSM standards carrier signal,
Carrier signal of WCDMA standards etc..
It should be noted that the embodiment of the present invention here only by taking a signal transmission passage as an example, elaborates this
The Poewr control method that bright embodiment is proposed here, for other signal transmission passages adopt identical processing method.
Step 12, the carrier signal of at least two standards to transmitting in the signal transmission passage carry out gain tune respectively
Whole, for ease of illustrating, the Gain tuning that various embodiments of the present invention are carried out respectively to each carrier signal here is referred to as the first gain
Adjustment.
Wherein, gain difference corresponding with each carrier signal is determined respectively, then for a carrier signal, according to true
Make to should the gain difference of carrier signal the first Gain tuning is carried out to the carrier signal.
Specifically, the embodiment of the present invention one is here by taking a carrier signal as an example being described in detail, for signal is passed
The all carrier signals transmitted in defeated passage can carry out the first Gain tuning according to identical processing method.For one
Carrier signal, can adjust difference and alien frequencies by the corresponding different standard gain difference of the carrier signal, sub-carrier static power
At least one in dot gains difference determines the corresponding gain difference of the carrier signal, and wherein, different standard gain difference refers to root
Determine according to the corresponding standard of each carrier signal transmitted in signal transmission passage, pilot frequency point gain difference is referred to and passed according to signal
The corresponding frequency of each carrier signal transmitted in defeated passage determines.
Specifically, following methods can be adopted, the load is determined according to different standard gain difference corresponding with the carrier signal
The corresponding gain difference of ripple signal：The corresponding default increasing of each carrier signal transmitted in determining the signal transmission passage respectively
Beneficial adjusted value, and choose a kind of corresponding preset gain adjusted value of carrier signal of standard as calibration value, determine calibration value with
Difference is sought between the corresponding preset gain adjusted value of the carrier signal, the corresponding different standard gain difference of the carrier signal is obtained,
Using the different standard gain difference for obtaining as gain difference corresponding with the carrier signal.For example, it is assumed that there is the load of two kinds of standards
The preset gain adjusted value of ripple signal, wherein standard A correspondence carrier signal A is -38.288, corresponding carrier signal B of standard B
Preset gain adjusted value is -23.810, if then selecting corresponding -38.288 conduct of preset gain adjusted value of carrier signal A to demarcate
Value, carrier signal B are -6.9 relative to the different standard gain difference of the calibration value（For ease of statistics, acquired results retain to little
1 after several points）.
Specifically, difference can be adjusted by the corresponding sub-carrier static power of the carrier signal and determines the carrier signal pair
The gain difference answered, concrete grammar are as follows：If receive carrying out sub-carrier static power adjust instruction to the carrier wave, load sharing is determined
The corresponding sub-carrier static power of the carrier wave included in ripple static power adjust instruction adjusts difference, and the static power is adjusted
Whole difference is used as gain difference corresponding with the carrier signal.For example, in the middle of running, can be according under upper layer software (applications)
The sub-carrier power control instruction for reaching（The static power adjust instruction that some carrier wave is issued）, include in obtaining the instruction
Corresponding with carrier wave sub-carrier static power adjustment difference, it is assumed that sub-carrier static power is issued to a certain carrier signal A
Adjust instruction so that the static power of carrier signal A is adjusted to -2.3, then can be using -2.3 as corresponding with the carrier signal
Gain difference.
Specifically, can also be determined by the corresponding pilot frequency point gain difference of the carrier signal corresponding with the carrier signal
Gain difference, it is specific as follows：If receive frequency hopping power control instruction is carried out to the carrier signal, determine the carrier signal pair
The pilot frequency point gain difference answered, using the pilot frequency point gain difference as gain difference corresponding with the carrier signal.For example, it is false
If carrier wave A is 6.8 in the corresponding performance numbers of frequency f1, it is 7.4 in the corresponding performance numbers of frequency f2, carrier wave A is with frequency f1 in letter
Transmit in number transmission channel, in a certain time slot, receive frequency hopping instruction, that is, need to move to frequency f2 carrier wave A from frequency f1,
Then with after moving frequency f2 continue in signal transmission passage transmit, then now, to should carrier signal A pilot frequency point increase
Beneficial difference is 7.4-6.8=0.6, can be using 0.6 as gain difference corresponding with the carrier signal.
Specifically, can consider to should carrier signal different standard gain difference, sub-carrier static power adjustment
One or more in difference and pilot frequency point gain difference, determine the corresponding gain difference of the carrier signal.Can with but do not limit
In using following several methods：
First method：The carrier signal corresponding different standard gain difference is done with sub-carrier static power adjustment difference and is subtracted
Method, the difference tried to achieve is used as gain difference corresponding with the carrier signal.
Second method, the carrier signal corresponding different standard gain difference is added with pilot frequency point gain difference, is tried to achieve
And value as gain difference corresponding with the carrier signal.
The carrier signal corresponding sub-carrier static power is adjusted difference and pilot frequency point gain difference phase by the third method
Plus, try to achieve and value is used as gain difference corresponding with the carrier signal.
It is above-mentioned to only give wherein three kinds modes, it is, of course, also possible to there are other compound modes to realize, no longer go to live in the household of one's in-laws on getting married here
State, the carrier signal corresponding different standard gain difference can be deducted sub-carrier static power by a kind of preferably implementation
Adjustment difference, then obtain and value is added as gain difference corresponding with the carrier signal with pilot frequency point gain difference.
By above-mentioned various modes, can obtain to should carrier signal gain difference, obtain gain difference it
Afterwards, need the first Gain tuning to be carried out to the carrier signal, then the first increasing can be carried out using 1 pair of carrier signal of following formula
Benefit adjustment：
G (carrier)=Gd × 10(E/20)Formula 1
Wherein, G (carrier) is the numerical value after each carrier signal carries out the first Gain tuning, and Gd is that default gain is adjusted
Adjust scale value, the gain difference that E is to determine out.
Step 13, will carry out the whole carrier signals after the first Gain tuning and is combined process acquisition combining signal.
Wherein, the whole carrier signals after the first Gain tuning are carried out, the corresponding gain of each carrier signal is all right
Together, by alignment after all carrier signals do combining process.
Step 14, after being processed according to combining, the combining signal that obtains determines the corresponding forward power value of the combining signal and anti-
Feedback performance number.
Wherein, by the combining signal for obtaining after the second Gain tuning（For ease of illustrating, the embodiment of the present invention here will
Gain tuning is carried out to combining signal is referred to as the second Gain tuning）, it is coupled in feedback link by bonder, and in feedback
In link, the combining signal of transmission is carried out into equilibrium treatment, obtain equilibrium treatment signal, determine the equilibrium treatment signal correspondence
Feedback power value.Specifically, frequency-domain equalization technology can be based on, by the combining signal transmitted in feedback link in wide-band
Frequency response fluctuation reduce, obtain equilibrium treatment signal.Equilibrium refers to the equilibrium to the characteristic of channel, i.e., using equalizer, together
Equalizer is returned to produce the characteristic contrary with channel, the interference that the time-varying Multipath Transmission characteristic for offsetting channel causes.
Specifically, according to the forward power value and the feedback power value, the correspondence of each carrier signal is determined respectively
The method of power output value can be, but not limited to using following two kinds：Following formula 2 can be adopted
First method：The corresponding power output value of each carrier signal is determined using following formula 2
TSSI N_I(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB)) attN_I formula 2
Wherein, TSSIN_I is the power output value of i-th carrier wave in n-th signal transmission passage, and IQ Data are default
The base band power meansigma methodss of the carrier wave counted in duration, Kdl_value be to should carrier wave preset gain adjusted value,
CfrF_A-cfrDB be to should signal transmission passage gain adjustment value, gainF is forward power value and feedback power value
Difference, fSigPwDB-feedPwDB are the differences of default forward power value and feedback power value, and attN_I is n-th signal
The default automatic pad value of i-th carrier wave in transmission channel.
Second method：If receive carrying out static power adjust instruction to signal transmission passage, according to the forward direction work(
Rate value, feedback power value and static power adjusted value, determine the corresponding power output value of each carrier signal, specifically respectively
Ground, can determine the corresponding power output value of each carrier signal by following formula 3：
TSSI N_I(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB)) attN_I-staticAttF_N formula 3
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQData is default
The base band power meansigma methodss of the carrier wave counted in duration, Kdl_value be to should carrier wave preset gain adjusted value,
CfrF_A-cfrDB be to should signal transmission passage gain adjustment value, gainF is forward power value and feedback power value
Difference, fSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is n-th signal
The default automatic pad value of i-th carrier wave in transmission channel, staticAttF_N are the corresponding static work(of the signal transmission passage
Rate adjusted value.
Step 15, according to the forward power value and the feedback power value that determine, determines the signal transmission passage pair
The power output value answered.
Wherein, the corresponding power output value of the whole carrier signals determined is added into summation, obtains signal transmission and lead to
The corresponding power output value in road.
If it is preferred that receive carry out static power adjust instruction to signal transmission passage, according to the forward power value,
The feedback power value and static power adjusted value, determine the corresponding power output value of each carrier signal respectively.
Specifically, static power adjusted value is set in advance or according to static power adjusted value set in advance and adjustment
What step value determined.
Step 16, will determine to should the output power value of signal transmission passage be supplied to the upper strata Power Control to set
Standby, upper strata power control apparatus can carry out corresponding Power Control according to the numerical value for obtaining to signal transmission passage.
It is preferred that can determine whether to meet the essence of output by the difference of calculating forward power and feedback power
Degree, specially：
Assume that the corresponding power output value of calculated signal transmission passage is K, it is Ka to calculate gained loop gain（I.e.
The difference of forward power and feedback power）.
When Ka exists（K±PowerAccuracy）During dB scopes, when within PowerAccuracy threshold ranges, do not enter
Row Power Control, wherein PowerAccuracy refer to power accuracy.It is preferred that PowerAccuracy can be with value as 0.25.
As Ka≤(K-LNAthreshhold) dB, i.e., when more than LNAthreshhold values, that is, produce low gain alarm.Its
Middle LNAthreshhold is low gain threshold value.It is preferred that the value of LNAthreshhold can be 6.
When Ka is more than（K+PowerAccuracy）DB or Ka are less than（K-PowerAccuracy）During dB, power is carried out
Control, the adjustment stepping of the Power Control of selection can be 0.3dB or undetermined.Adjustment point is being carried out linearly in advance for combining signal
Before distortion processing.It is preferred that Power Control can be carried out according to feedback temperature compensation table, calibration temperature and feedback ATT precision.
Correspondingly, the embodiment of the present invention two proposes a kind of output control device here, as shown in figure 3, including：
Combining signal obtaining unit 301, for for a signal transmission passage, to passing in the signal transmission passage
The carrier signal of at least two defeated standards carries out Gain tuning respectively, and the carrier signal carried out after Gain tuning is closed
Road processes and obtains combining signal.
Specifically, above-mentioned combining signal obtaining unit 301, specifically for determining increasing corresponding with each carrier signal respectively
Beneficial difference；For a carrier signal, according to determine to should the gain difference of carrier signal the carrier signal is carried out
Gain tuning.
Specifically, above-mentioned combining signal obtaining unit 301, specifically for for a carrier signal, being believed by the carrier wave
At least one determination in number corresponding different standard gain difference, sub-carrier static power adjustment difference and pilot frequency point gain difference
The corresponding gain difference of the carrier signal, wherein described different standard gain difference is according to each transmitted in signal transmission passage
The corresponding standard of carrier signal determines that the pilot frequency point gain difference is believed according to each carrier wave transmitted in signal transmission passage
Number corresponding frequency determines.
Specifically, above-mentioned combining signal obtaining unit 301, transmits specifically for being determined in the signal transmission passage respectively
The corresponding preset gain adjusted value of each carrier signal, and choose a kind of adjustment of carrier signal of standard corresponding preset gain
Value is used as calibration value；Determine and difference is sought between calibration value preset gain adjusted value corresponding with the carrier signal, obtain the carrier wave
The corresponding different standard gain difference of signal, using the different standard gain difference for obtaining as gain inequality corresponding with the carrier signal
Value；And if receive and carry out sub-carrier static power adjust instruction to the carrier wave, determine sub-carrier static power adjust instruction
In the corresponding sub-carrier static power of the carrier wave that includes adjust difference, the static power is adjusted difference as with the carrier wave
The corresponding gain difference of signal；And if receive frequency hopping power control instruction carried out to the carrier signal, determine that the carrier wave is believed
Number corresponding pilot frequency point gain difference, using the pilot frequency point gain difference as gain difference corresponding with the carrier signal.
Specifically, above-mentioned combining signal obtaining unit 301, specifically for deducting sub-carrier by the different standard gain difference
Static power adjusts difference, then is added obtain and value as gain inequality corresponding with the carrier signal with pilot frequency point gain difference
Value.
Specifically, above-mentioned combining signal obtaining unit 301, specifically for being increased to each carrier signal using following formula
Benefit adjustment：
G (carrier)=Gd × 10(E/20)；
Wherein, G (carrier) is the numerical value after each carrier signal carries out Gain tuning, and Gd is that default Gain tuning is fixed
Scale value, the gain difference that E is to determine out.
Determining unit 302, the combining signal for being obtained according to combining signal obtaining unit 301 determine the combining signal
Corresponding forward power value and feedback power value.
Specifically, above-mentioned determining unit 302, specifically for being coupled to feedback by the combining signal after Gain tuning
In link, the combining signal transmitted in feedback link is carried out into equilibrium treatment, obtain equilibrium treatment signal, determine the equilibrium
The corresponding feedback power value of process signal.
Specifically, above-mentioned determining unit 302, specifically for based on frequency-domain equalization technology, by the conjunction transmitted in feedback link
Frequency response fluctuation of the road signal in wide-band is reduced, and obtains equilibrium treatment signal.
Power output value obtaining unit 303, for the forward power value that determined according to determining unit and the feedback
Performance number, determines the corresponding power output value of the signal transmission passage, according to the power output value for obtaining, logical to the signal transmission
Road carries out Power Control.
Specifically, above-mentioned power output value obtaining unit 303 is specifically for according to the forward power value and the feedback
Performance number, determines the corresponding power output value of each carrier signal respectively；By the corresponding of the whole carrier signals determined
Power output value is added summation, obtains the corresponding power output value of signal transmission passage.
Specifically, above-mentioned power output value obtaining unit 303, specifically using following formula, according to the forward power value
With the feedback power value, the corresponding power output value of each carrier signal is determined respectively：
TSSI N_I(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))–attN_I;
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQ Data are default
The base band power meansigma methodss of the carrier wave counted in duration, Kdl_value be to should carrier wave preset gain adjusted value,
CfrF_A-cfrDB be to should signal transmission passage gain adjustment value, gainF is forward power value and feedback power value
Difference, fSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is n-th signal
The default automatic pad value of i-th carrier wave in transmission channel.
Specifically, if above-mentioned power output value obtaining unit carries out static work(specifically for receiving to signal transmission passage
Rate adjust instruction, according to the forward power value, the feedback power value and static power adjusted value, determines each carrier wave respectively
The corresponding power output value of signal；The corresponding power output value of the whole carrier signals determined is added into summation, is obtained
The corresponding power output value of signal transmission passage.
Wherein, static power adjusted value is set in advance or according to static power adjusted value set in advance and adjustment step
What long value determined.
Specifically, above-mentioned power output value obtaining unit is additionally operable to, by following formula, determine the right of each carrier signal
The power output value answered：
TSSI N_I(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))–attN_I-staticAttF_N
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQData is default
The base band power meansigma methodss of the carrier wave counted in duration, Kdl_value be to should carrier wave preset gain adjusted value,
CfrF_A-cfrDB be to should signal transmission passage gain adjustment value, gainF is forward power value and feedback power value
Difference, fSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is n-th signal
The default automatic pad value of i-th carrier wave in transmission channel, staticAttF_N are the corresponding static work(of the signal transmission passage
Rate adjusted value.
Embodiment two：
Further, on the basis of above-described embodiment one, the embodiment of the present invention two is here with RF remote（RRU）
In communication system, the present invention is proposed here as a example by the carrier signal of the different systems received in a signal transmission passage
Technical scheme further elaborated.
Wherein, as shown in figure 4, the power control principle figure for being proposed for the embodiment of the present invention here.Table 1 is in correspondence Fig. 4
The brief description made of some comprising modules.It should be noted that the embodiment of the present invention two is here only with a signal transmission
It is described in detail as a example by passage, for the Poewr control method of other signal transmission passages, can adopts identical skill
Art scheme.
Table 1
In RRU systems, brief description is made to the course of work of whole RRU systems first,
As shown in figure 5, under initial operating condition, starting after RRU system electrifications, needing operation to be performed as follows：
Step 51, configures corresponding hardware composition and loads corresponding calibration file（Including relating in power control process
And the preset value of some parameters etc.）.
Step 52, after corresponding system configuration is completed, system starts normal work, receives the carrier signal that base station sends
And set up the information such as cell.
Wherein, and for power control process, need to obtain the frequency of carrier signal, transmission bandwidth, carrier type
And the analog attenuator of downlink（Tx att, Attenuator）Constant power control information.
Specifically, according to the power control information for obtaining, determine that following some scaling parameters (are the settings of some preset values
Foundation), for example determine analog attenuator（ATT, Attenuator）Numerical value, the initial value, feedback power including forward power
Initial value etc..The corresponding preset gain adjusted value of each carrier signal（K value）, the corresponding subcarrier gain value of each carrier signal
(can obtain in the corresponding relation of the type of carrier wave and subcarrier gain value).Specifically, it is determined that each carrier signal correspondence is carried
During ripple yield value, if what RRU systems received is the different carrier signal of GSM standard frequencies, directly using presetting
Numerical value, such as directly using default work(point yield value（duplexgain）, it is preferred that can be by the duplexgain numerical value
It is divided by with 100 and deduct again 10.If conversely, RRU systems receive be not GSM standards carrier signal, need calculating two
Individual numerical value, one is another ginseng as meansigma methodss according to transmission bandwidth using the duplexgain numerical value in the transmission bandwidth
Number is the signal gain value of default fixation.
Step 53, according to the relevant information configuration digital controlled oscillator for obtaining（NCO, Numerically controlled
oscillator）And ATT, digital up converter are set（DUC, Digital up converter）Gain, loading DPD coefficients.
Step 54, after being provided with, checks the on off state of each signal transmission passage, and according on off state to corresponding
Signal transmission passage carry out Power Control.
It is preferred that the gain adjustment value of base band can be arranged（Such as the GainAdjust1 in Fig. 4）, for example can initially
Value is set to 0, it is known that be gradually incremented by according to default step value, when being incremented to 4 till.Step value could be arranged to 4dB, 3dB,
1dB, 0.5dB.
It should be noted that after above-mentioned steps are completed, it is possible to into normal power control flow, it is determined that front to work(
Rate value and feedback power value, then will determine that the corresponding power output value of signal transmission passage reports upper layer application, subsequently
Power Control can be carried out to signal transmission passage according to the result for reporting.
Below based on the power control schematic diagram of Fig. 4, the Poewr control method that the embodiment of the present invention is proposed here is elaborated,
As shown in fig. 6, detailed process is as follows：
Step 61, receives the carrier signal A ~ D of three kinds of different systems of Base Transmitter, to the carrier signal A ~ D for receiving
Carry out respectively removing frequency process.
For for a signal transmission passage in RRU systems, the carrier signal A ~ D of Base Transmitter is received, specifically such as
Shown in Fig. 4, it is the power control principle figure in RRU communication systems that the embodiment of the present invention two is proposed here, the present invention is implemented
In two subsequent step of example, technical scheme proposed by the present invention is made still by taking Fig. 4 as an example and elaborating.Assume Base Transmitter
Three kinds of different systems carrier signal, the carrier signal of different frequencies, example for each standard, can be corresponded to
Such as, carrier signal A of GSM standards can be to there is 3 different frequencies.Carrier signal A can be with an arbitrary frequency as base
Stand and transmit in signal transmission passage.
Step 62, the carrier signal to transmitting in the signal transmission passage carry out the first Gain tuning respectively.
Wherein, carrier signal A transmitted in a signal transmission passage ~ D each corresponds to the single-carrier power of itself, institute
To need to carry out registration process to carrying out the corresponding power gain of each carrier signal after frequency-conversion processing.
Specifically, gain difference corresponding with each carrier signal is determined respectively, then for a carrier signal, according to
Determine to should the gain difference of carrier signal the first Gain tuning is carried out to the carrier signal.
Wherein, the corresponding gain difference of each carrier signal can be according to the corresponding different standard gain inequality of the carrier signal
Value, sub-carrier static power adjust difference and pilot frequency point gain difference to determine, specifically, it is determined that each carrier signal is corresponding
Gain difference specific embodiment refers to elaborating in above-described embodiment one, repeats no more here.
It is preferred that in embodiment of the present invention technique proposed herein scheme, when also add for frequency hopping instruction is received
Respective handling, it is concrete as shown in fig. 7, comprises：
Step 71, receives frequency hopping instruction.For example, FPGA carries the tone hopping information that the first two time slot receives DU.
Step 72, instructs according to frequency hopping, monitors some parameters for pre-setting, and reads the corresponding frequency of corresponding carriers signal
Gain compensation value, frequency hop time slot arrive the moment previous time slot in, the numerical value of reading is written in DUC gains.
Step 73, continues waiting for next frequency point information, and returns execution step 71.
It is preferred that in embodiment of the present invention technique proposed herein scheme, it is also proposed that single carrier wave signal is being carried out
When static power is adjusted, corresponding power output can also be produced and correspondingly be changed, and specifically make below and elaborating.
A kind of preferably implementation, the embodiment of the present invention two here, correspond to the gain difference of each carrier wave, and employing should
The corresponding different standard gain difference of carrier signal deducts sub-carrier static power adjustment difference, then is added with pilot frequency point gain difference
Obtain and value is used as gain difference corresponding with the carrier signal.
Specifically, the different standard gain difference for corresponding to each carrier signal can be determined using following methods, such as 1 institute of table
Show, value on the basis of the performance number of carrier signal A under GSM standards can be selected, by each carrier signal under other standards
（WCDMA and OFDM）Corresponding performance number does normalized on the basis of the reference value chosen.Specifically, table 2 is given altogether
The lower 9 kinds of carrier signals of three kinds of standards.The quantity of each carrier signal and corresponding frequency（Illustrated with frequency in table 2）Also it is incomplete
It is identical.
Table 2
In above-mentioned table 2, Kdownlink represent to should carrier wave preset gain adjusted value.During RF Maximum Power Outputs
The input power value of carrier signal（DBfs i.e. in table can be determined using following formula 4：
Formula 4
Pout(carrier)=10 × lg [PIQ(carrier)]+KDLFormula 5
Wherein, Pout(carrier) output of antenna opening is referred to, the RF in correspondence table 1 is per carrier wave peak power output
PIQ(carrier) correspondence digital power I2+Q2 when corresponding to the RF Maximum Power Outputs in table 2.
It is preferred that I2+Q2 can be obtained through statistics by upper layer software (applications), can for example be the I2+Q2 in preset duration
An average.For example, field programmable gate array（FPGA, Field programmable gate array）Can unite per 2ms
Count once the base band power value of certain carrier wave.2048 I/Q datas are only counted in 2ms, can calculate 1024（I2+Q2）Value,
These numerical value are sued for peace, is then obtained divided by 1024 again（I2+Q2）Average, then by the average for obtaining store in a register.
So, in the same manner, in 20ms, it is possible to obtain 10 differences or identical（I2+Q2）Average, obtain
After this 10 numerical value, then the meansigma methodss for asking for 10 numerical value, it is possible to obtain in 20ms（I2+Q2）Average.
Wherein, when the corresponding different standard gain difference of each carrier signal is determined respectively, the load to be given in table 1 here
As a example by ripple signal, it is assumed that the corresponding Kdownlink values -38.288 of carrier signal for selecting GSM standards are calibration value, by table 1
In the Kdownlink values of correspondence each carrier signal that are given, by each carrier signal corresponding Kdownlink values with it is selected
Make the difference between calibration value, obtain to should carrier signal different standard gain difference.As shown in table 3:
Table 3
According to the result drawn in above-mentioned table 3, the first Gain tuning is carried out to the carrier signal of different systems, then for load
Ripple signal OFDM 20MHz, when carrying out the first Gain tuning, can be using corresponding different standard gain difference as corresponding
Gain difference.First Gain tuning is carried out using 1 couple of carrier signal OFDM 20MHz of the formula proposed in above-described embodiment one.
For, when in table 2, other carrier signals carry out Gain tuning, processing procedure is essentially identical with carrier signal OFDM 20MHz, here
Repeat no more.
Step 63, will carry out the whole carrier signals after the first Gain tuning and is combined process acquisition combining signal.
With reference to as shown in figure 4, four carrier signals are combined process after carrying out the first Gain tuning respectively.Combining is processed
Combining signal afterwards carries out the second Gain tuning, and the purpose of the second Gain tuning is carrier wave of the control after the first Gain tuning
The corresponding baseband gain of each carrier signal before signal carries out linear pre-distortion, after combining process.
Step 64, determines the corresponding forward power value of combining signal and feedback power value.
With reference to shown in Fig. 4, at this and before road signal enters feedback link, measure to should and the corresponding forward direction of road signal
Performance number, and combining signal by feedback link process after, measure to should and road signal feedback power value.
In RRU systems, typically all realize carrying out linearly the signal of power amplifier transfer using digital pre-distortion technology
Change is processed, and in the Poewr control method that the embodiment of the present invention is proposed here, is borrowed feedback link, can effectively be detected base station day
The power swing of line mouth.
It is preferred that in order to guarantee really to reflect combining signal transmit in feedback link after corresponding power
Value, in embodiment of the present invention technique proposed herein scheme, increased equalizer in feedback channel.Equalizer can reduce instead
Interference of the signal fluctuation to combining signal in feedback link, this signal fluctuation are probably to be caused by hardware, it is also possible to by counting
Word domain signal processing causes, and using frequency-domain equalization technology, makes the total transfer function including the whole system including equalizer can be with
Meet the condition of undistorted transmission, including correcting amplitude-frequency characteristic and group delay characteristic respectively, it is preferred that the embodiment of the present invention two this
In by the way of sequential equilibrium realizing.
A kind of preferably implementation, as shown in figure 8, propose one kind by transversal filter here for the embodiment of the present invention two
The equaliser structure schematic diagram of composition.Different results are obtained by adjusting the coefficient of equalizer.It is right to do one below
Than, during Fig. 9 a are prior art, the wave testing in feedback link, when not using equalizer, in 150MHz feedback bandwidths
Figure, after Fig. 9 b and Fig. 9 c is respectively the employing equalizer that the embodiment of the present invention two is proposed here, the ripple in 150MHz feedback bandwidths
Dynamic test chart, it should be noted that the different coefficient that Fig. 9 b and Fig. 9 c are respectively adopted, is 8 groups and 12 groups respectively, can from figure
To find out, using the equalizer and the equalizer using 12 system numbers of 8 system numbers, handled effect is entirely different, 12 systems
Several equalizer, the portfolio effect of the relative equalizer using 12 system numbers of portfolio effect are significantly improved, and specifically, are answered actual
With in, the coefficient of equalizer can specifically be arranged according to different requirements.
Step 65, according to the forward power value and feedback power value that determine, determines the corresponding power of the signal transmission passage
Output valve.
The corresponding power output value of all carrier signals, i.e. sub-carrier signal output in the signal transmission passage is determined first
Performance number, then according to the corresponding power output value of each carrier signal determined, determines the corresponding work(of the signal transmission passage
Rate output valve.
It is preferred that embodiment of the present invention technique proposed herein scheme, in RRU systems, also add to signal transmission
Passage carries out static power adjustment function.Wherein, the power of the multi-standard carrier signal under prespecified rate of static power
Span of control, it is specific as follows：
40W/path(or carrier) case:0~12dB range；
20W/path(or carrier) case:0~12dB range；
13W/path(or carrier) case:0~12dB range；
10W/path(or carrier) case:0~12dB range。
For example, the requirement tested under GSM standard rates of static power, needs by the forward direction in setting DPD loops, instead
Feedback simulates ATT to complete（After simulation ATT is set, it is necessary to the pre- instruction under re -training DPD coefficients or the ATT settings of loading difference
Practice coefficient）.In this case, the digital power that DU gives is constant, and forward link simulation ATT increases N dB, output
Reduce N- /+0.5dB, feedback analog ATT is accordingly adjusted, can be by front to the digital work(being input into feed back input in DPD loops
Rate is alignd.Calibration is needed to arrange it is preferred that feeding back ATT precision here, it is also desirable to do temperature-compensating setting.
Based on this, in two technique proposed herein scheme of the embodiment of the present invention, during realization, it is also contemplated that to single
When carrier signal carries out static power adjustment and/or carries out static power adjustment to whole signal transmission passage, result is adjusted
The corresponding power output value of signal transmission passage can be impacted.Specifically, receive signal transmission passage is carried out it is quiet
State power adjustment instruction, according to the forward power value, the feedback power value and static power adjusted value, determines each respectively
The corresponding power output value of carrier signal.Then the output power value of the transmission signal is determined again.For example, according to above-mentioned enforcement
The formula 3 proposed in example one, following formula are show in particular for the 8 carrier wave letters for being transmitted in two signalling channels of AB respectively
Number, the corresponding power output value of each carrier signal is：
For transmission carrier signal 0 ~ 4 in signal transmission passage A, the corresponding power output value of each carrier signal is：
TSSIA_0(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attA_0-staticAttF_A
TSSIA_1(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attA_1-staticAttF_A
TSSIA_2(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attA_2-staticAttF_A
TSSIA_3(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_A-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attA_3-staticAttF_A
TSSIB_0(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_B-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attB_0-staticAttF_B
TSSIB_1(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_B-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attB_1-staticAttF_B
TSSIB_2(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_B-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attB_2-staticAttF_B
TSSIB_3(dBm)=10*log(IQ Data)+Kdl_value+(cfrF_B-cfrDB)+(gainF-
(fSigPwDB-feedPwDB))-attB_3-staticAttF_B
The numerical value of the I2+Q2 in wherein IQ Data correspondence tables 2, wherein, the determination method of I2+Q2, in above-mentioned steps
Jing is elaborated, and is repeated no more here.The value passes through FPGA statistical reports for the digital power that DU sends.Kdl_value exists
Can also find in table 2, correspondence table 2 in Kdownlink, gainF is the loop gain that DPD is reported, i.e., forward power value and
Difference between feedback power value, reporting for the value include temperature-compensating.
The default attA_0-attB_3 roots of initial value of fSigPwDB and feedPwDB forward powers value and feedback power value
Require according to different systems or identical standard or imbalance power, " with the GSM gain inequalities " string in correspondence table 2, the value are sent out by DU
Go out instruction adjustment.
When staticAttF_A/B correspondence static powers are adjusted, analogATT needs the value of decay, i.e., logical to signal transmission
The static power adjusted value that road A or B are issued, the value send instruction adjustment by DU.
Baseband gain adjusted value before cfrF_A/B correspondence DPD after combining, cfrDB correspondence combinings before the DPD in calibration
Baseband gain adjusted value afterwards.
According to the above results, the power output value of correspondence signal transmission passage A is：ouputPowerA(dBm)=10lg(10
^(TSSIA_0/10)+10^(TSSIA_1/10)+10^(TSSIA_2/10)+10^(TSSIA_3/10))
Correspondingly the power output value of signal transmission passage B is：
outputPowerB(dBm)=10lg(10^(TSSB_0/10)+10^(TSSIB_1/10)+10^(TSSIB_2/10)
+10^(TSSIB_3/10))
Each signal transmission passage determined corresponding power output value is reported upper application software by step 66,
According to the power output value of correspondence each signal transmission passage for obtaining, power adjustment is carried out to corresponding signal transmission passage.
Wherein, calculated each signal transmission passage corresponding power output value is reported, needs are following behaviour
Make, it should be noted that the embodiment of the present invention two only gives a kind of preferably embodiment here, in specific implementation process
In, however it is not limited to those set-up modes.
The first step：Calibration process, specifically includes：
Wherein ATC sends AGC scaling instructions to DSP, and after the calibration success response message that DSP sends is received, it is fixed
Mark process terminates.
Specifically, AGC scaling instructions are sent including ATS；DSP switching signal transmission channels；DSP gathers corresponding downlink data
And feed back；DSP feeds back DDC, removes zero-frequency, filters through feedback equalization filter factor EQ_C, time-delay alignment；DSP is according to lower line number
Count in more than 1/5 amplitude data power of peak-peak according to amplitude range is chosen；P_FW_S(DB)；P_FB_S(DB）；DSP is returned
Multiple AGC scaling instruction successes.
Second step：Calibration data are sent to DSP by AGC.
Wherein, calibration data can be, but not limited to include calibration temperature T_S;Calibration forward power P_FW_S (db);Calibration
Feedback power P_FB_S (db);Feedback equalization filter factor EQ_C [60]；
Descending ATT values during calibration：ATT_FW_S;
Digital gain controller value after DPD, FW_digital_Gain_S during calibration;
ATT values, ATT_FB_S is fed back during calibration;
Feedback ATT values accuracy table ATT_FB_CAL [];
Descending ATT values accuracy table ATT_FW_CAL [];
Feedback link Temperature compensation for gain table FB_CAL_T []；
Descending static power change value：（Relative calibration state）ATT_FW_DELTA:d
Current feedback link temperature：T
Feedback ATT values, ATT_FB;
3rd step：To the initialization control of AGC connection road under operational mode（Complete in mode handover procedure）, mainly include：
Upper layer software (applications) is issued from the free time and is switched to operational mode, and DSP completes switching and replys（AGC acquiescences are closed）；
Upper layer software (applications) is issued from AGC and is opened；
DSP arranges descending ATT：ATT_FW=ATT_FW_S-ATT_FW_DELTA；
DSP arranges digital gain controller value after DPD：
FW_digital_Gain=FW_digital_Gain_S-(ATT_FW_CAL[ATT_FW]-ATT_FW_CAL[ATT_
FW_S])；
DSP replys ATS AGC and opens successfully；
4th step：The process of operation AGC, can be, but not limited to include the description below：
1. sampling downstream feedback data are triggered；
2. DDC is fed back, and frequency of zero-suppressing evidence is filtered through feedback equalization filter factor EQ_C, time-delay alignment；
3. choose amplitude range according to downlink data to count in more than 1/5 amplitude data power of peak-peak；
A:P_FW(DB)
B:P_FB(DB)
C:If(P_FW-P_FW_S<-20dB) printf(“TOO Small Power‘);return0；
4. calculating process
A:GAIN=P_FB-P_FW;
B:GAIN_DELTA=GAIN-(P_FB_S-P_FW_S)；
C:VAR1=（FB_CAL_T[T_S]-FB_CAL_T[T]）;
D:VAR2=ATT_FB_CAL [ATT_FB]-ATT_FW_CAL [ATT_FB_S]
E:VAR3=ATT_FW_DELTA;
F:GAIN_DELTA_CAL=GAIN_DELTA+VAR1+VAR2+VAR3;
G:FW_digital_Gain_NOW=FW_digital_Gain_pre+GAIN_DELTA_CAL
5. setting up procedure
If(abs(FW_digital_Gain_NOW)>3dB)
Printf (" digital gain adjustment is excessive ");return0；
else
FW_digital_Gain=FW_digital_Gain_NOW is set；
6.DSP reports gain G AIN_DELTA_CAL：With the difference of desired value.
Upper layer software (applications) after the corresponding power output value of signal transmission passage is received, according to the actual requirements, to RRU systems
System carries out Power Control.
Using embodiment of the present invention technique proposed herein scheme, can preferably realize existing in multimode communication signal
Under conditions of, the corresponding power output value of each signal transmission passage is accurately determined, so as to improve the precision of Power Control.
The application of static power adjustment and base station input digital power adjustment can also be met simultaneously.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present 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 (24)
1. a kind of Poewr control method, it is characterised in that include：
For a signal transmission passage, the carrier signal point of at least two standards to transmitting in the signal transmission passage
Do not carry out Gain tuning, and the carrier signal carried out after Gain tuning be combined process obtaining combining signal；
Determine the corresponding forward power value of the combining signal and feedback power value；
According to the forward power value and the feedback power value that determine, the corresponding power output of the signal transmission passage is determined
Value；
According to the power output value for obtaining, Power Control is carried out to the signal transmission passage；
Wherein determine the corresponding feedback power value of the combining signal, including：By combining signal coupling after Gain tuning
Close in feedback link, the combining signal transmitted in feedback link is carried out into equilibrium treatment, obtain equilibrium treatment signal, it is determined that
The corresponding feedback power value of the equilibrium treatment signal.
2. the method for claim 1, it is characterised in that described that the combining signal transmitted in feedback link is carried out
Weighing apparatus process, obtains equilibrium treatment signal, including：
Based on frequency domain equalization mode, the frequency response fluctuation by the combining signal transmitted in feedback link in wide-band is reduced,
Obtain equilibrium treatment signal.
3. the method for claim 1, it is characterised in that at least two systems transmitted in the signal transmission passage
The carrier signal of formula carries out Gain tuning respectively, including：
Gain difference corresponding with each carrier signal is determined respectively；
For a carrier signal, according to determine to should the gain difference of carrier signal gain is carried out to the carrier signal
Adjustment.
4. method as claimed in claim 3, it is characterised in that determine gain difference corresponding with each carrier signal respectively,
Including：
It is for a carrier signal, poor by the corresponding different standard gain difference of the carrier signal, the adjustment of sub-carrier static power
At least one in value and pilot frequency point gain difference determines the corresponding gain difference of the carrier signal, wherein described different standard gain
Difference is to determine that the pilot frequency point gain difference is according to the corresponding standard of each carrier signal transmitted in signal transmission passage
The corresponding frequency of each carrier signal according to transmitting in signal transmission passage determines.
5. method as claimed in claim 4, it is characterised in that determined by the corresponding different standard gain difference of the carrier signal
The corresponding gain difference of the carrier signal, including:
The corresponding preset gain adjusted value of each carrier signal transmitted in determining the signal transmission passage respectively, and choose one
The corresponding preset gain adjusted value of carrier signal of standard is planted as calibration value；Determine that scaled values are corresponding with the carrier signal pre-
If seeking difference between gain adjustment value, the corresponding different standard gain difference of the carrier signal is obtained, by the different standard gain for obtaining
Difference is used as gain difference corresponding with the carrier signal；
Difference is adjusted by the corresponding sub-carrier static power of the carrier signal and determines the corresponding gain difference of the carrier signal, wrapped
Include：
If receive carrying out sub-carrier static power adjust instruction to the carrier wave, wrap in determining sub-carrier static power adjust instruction
The corresponding sub-carrier static power of the carrier wave that contains adjusts difference, the static power is adjusted difference as with the carrier signal
Corresponding gain difference；
Gain difference corresponding with the carrier signal is determined by the corresponding pilot frequency point gain difference of the carrier signal, including：
If receive frequency hopping power control instruction is carried out to the carrier signal, determine the corresponding pilot frequency point gain inequality of the carrier signal
Value, using the pilot frequency point gain difference as gain difference corresponding with the carrier signal.
6. method as claimed in claim 4, it is characterised in that described to determine gain inequality corresponding with each carrier signal respectively
Value, including：
The different standard gain difference is deducted into sub-carrier static power adjustment difference, then is added with pilot frequency point gain difference and is obtained
And value as gain difference corresponding with the carrier signal.
7. the method as described in claim 3～6 is arbitrary, it is characterised in that according to determine to should carrier signal increasing
Beneficial difference, carries out Gain tuning using following formula to each carrier signal：
G (carrier)=Gd × 10(E/20)；
Wherein, G (carrier) is the numerical value after each carrier signal carries out Gain tuning, and Gd is default Gain tuning scaled values,
The gain difference that E is to determine out.
8. the method for claim 1, it is characterised in that described according to the forward power value for determining and the feedback
Performance number, determines the corresponding power output value of the signal transmission passage, including：
According to the forward power value and the feedback power value, the corresponding power output of each carrier signal is determined respectively
Value；
The corresponding power output value of the whole carrier signals determined is added into summation, the corresponding work(of signal transmission passage is obtained
Rate output valve.
9. method as claimed in claim 8, it is characterised in that using following formula, according to the forward power value and described
Feedback power value, determines the corresponding power output value of each carrier signal respectively：
TSSI N_I (dBm)=10*log (IQ Data)+Kdl_value+ (cfrF_A-cfrDB)+(gainF- (fSigPwDB-
feedPwDB))–attN_I；
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQ Data are preset durations
The base band power meansigma methodss of the carrier wave for inside counting, Kdl_value be to should carrier wave preset gain adjusted value, cfrF_
A-cfrDB be to should signal transmission passage gain adjustment value, gainF is the difference of forward power value and feedback power value,
FSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is that n-th signal transmission is led to
The default automatic pad value of i-th carrier wave in road.
10. the method for claim 1, it is characterised in that according to the forward power value and the feedback work(that determine
Rate value, determines the corresponding power output value of the signal transmission passage, including：
If receive carrying out static power adjust instruction to signal transmission passage, according to the forward power value, the feedback work(
Rate value and static power adjusted value, determine the corresponding power output value of each carrier signal respectively；
The corresponding power output value of the whole carrier signals determined is added into summation, the corresponding work(of signal transmission passage is obtained
Rate output valve.
11. methods as claimed in claim 10, it is characterised in that the static power adjusted value be it is set in advance or according to
What static power adjusted value set in advance and adjusting step value determined.
12. methods as described in claim 10 or 11, it is characterised in that also include, using following formula, determining each carrier wave
The corresponding power output value of signal：
TSSI N_I (dBm)=10*log (IQ Data)+Kdl_value+ (cfrF_A-cfrDB)+(gainF- (fSigPwDB-
feedPwDB))–attN_I-staticAttF_N
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQ Data are preset durations
The base band power meansigma methodss of the carrier wave for inside counting, Kdl_value be to should carrier wave preset gain adjusted value, cfrF_
A-cfrDB be to should signal transmission passage gain adjustment value, gainF is the difference of forward power value and feedback power value,
FSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is that n-th signal transmission is led to
The default automatic pad value of i-th carrier wave in road, staticAttF_N are the corresponding static power adjustment of the signal transmission passage
Value.
13. a kind of output control device, it is characterised in that include：
Combining signal obtaining unit, for for a signal transmission passage, to transmit in the signal transmission passage to
The carrier signal of few two kinds of standards carries out Gain tuning respectively, and the carrier signal carried out after Gain tuning is combined process
Obtain combining signal；
Determining unit, the combining signal for being obtained according to combining signal obtaining unit determine the corresponding forward direction of the combining signal
Performance number and feedback power value；
Power output value obtaining unit, for the forward power value that determined according to determining unit and the feedback power value,
Determine the corresponding power output value of the signal transmission passage, according to the power output value for obtaining, the signal transmission passage is carried out
Power Control；
Wherein described determining unit, specifically for the combining signal is coupled in feedback link after Gain tuning, will
The combining signal transmitted in feedback link carries out equilibrium treatment, obtains equilibrium treatment signal, determines the equilibrium treatment signal
Corresponding feedback power value.
14. devices as claimed in claim 13, it is characterised in that the determining unit, specifically for based on frequency domain equalization side
Formula, the frequency response fluctuation by the combining signal transmitted in feedback link in wide-band are reduced, and obtain equilibrium treatment signal.
15. devices as claimed in claim 13, it is characterised in that the combining signal obtaining unit, specifically for true respectively
Fixed gain difference corresponding with each carrier signal；For a carrier signal, according to determining to should carrier signal
Gain difference carries out Gain tuning to the carrier signal.
16. devices as claimed in claim 15, it is characterised in that the combining signal obtaining unit, specifically for being directed to one
Individual carrier signal, adjusts difference and pilot frequency point by the corresponding different standard gain difference of the carrier signal, sub-carrier static power
At least one in gain difference determines the corresponding gain difference of the carrier signal, and wherein described different standard gain difference is basis
The corresponding standard of each carrier signal transmitted in signal transmission passage determines that the pilot frequency point gain difference is passed according to signal
The corresponding frequency of each carrier signal transmitted in defeated passage determines.
17. devices as claimed in claim 16, it is characterised in that the combining signal obtaining unit, specifically for true respectively
The corresponding preset gain adjusted value of each carrier signal transmitted in the fixed signal transmission passage, and choose a kind of load of standard
The corresponding preset gain adjusted value of ripple signal is used as calibration value；Determine calibration value preset gain adjustment corresponding with the carrier signal
Seek difference between value, obtain the corresponding different standard gain difference of the carrier signal, using the different standard gain difference for obtaining as with
The corresponding gain difference of the carrier signal；And if receive and carry out sub-carrier static power adjust instruction to the carrier wave, it is determined that
The corresponding sub-carrier static power of the carrier wave included in sub-carrier static power adjust instruction adjusts difference, by the static work(
Rate adjusts difference as gain difference corresponding with the carrier signal；And if receiving and carrying out frequency hopping power to the carrier signal
Control instruction, determines the corresponding pilot frequency point gain difference of the carrier signal, using the pilot frequency point gain difference as with the carrier wave
The corresponding gain difference of signal.
18. devices as claimed in claim 16, it is characterised in that the combining signal obtaining unit, specifically for will be described
Different standard gain difference deducts sub-carrier static power adjustment difference, then is added obtain and value conduct with pilot frequency point gain difference
Gain difference corresponding with the carrier signal.
19. devices as described in claim 15～18 is arbitrary, it is characterised in that the combining signal obtaining unit, it is concrete to use
In carrying out Gain tuning using following formula to each carrier signal：
G (carrier)=Gd × 10(E/20)；
Wherein, G (carrier) is the numerical value after each carrier signal carries out Gain tuning, and Gd is default Gain tuning scaled values,
The gain difference that E is to determine out.
20. devices as claimed in claim 13, it is characterised in that the power output value obtaining unit is specifically for according to institute
Forward power value and the feedback power value is stated, the corresponding power output value of each carrier signal is determined respectively；To determine
The corresponding power output value of whole carrier signals be added summation, obtain the corresponding power output value of signal transmission passage.
21. devices as claimed in claim 20, it is characterised in that the power output value obtaining unit, specifically using following
Formula, according to the forward power value and the feedback power value, determines the corresponding power output of each carrier signal respectively
Value：
TSSI N_I (dBm)=10*log (IQ Data)+Kdl_value+ (cfrF_A-cfrDB)+(gainF- (fSigPwDB-
feedPwDB))–attN_I；
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQ Data are preset durations
The base band power meansigma methodss of the carrier wave for inside counting, Kdl_value be to should carrier wave preset gain adjusted value, cfrF_
A-cfrDB be to should signal transmission passage gain adjustment value, gainF is the difference of forward power value and feedback power value,
FSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is that n-th signal transmission is led to
The default automatic pad value of i-th carrier wave in road.
22. devices as claimed in claim 13, it is characterised in that if the power output value obtaining unit is specifically for receiving
Static power adjust instruction is carried out to signal transmission passage, according to the forward power value, the feedback power value and static state
Power adjustment, determines the corresponding power output value of each carrier signal respectively；By the right of the whole carrier signals determined
The power output value answered is added summation, obtains the corresponding power output value of signal transmission passage.
23. devices as claimed in claim 22, it is characterised in that the static power adjusted value be it is set in advance or according to
What static power adjusted value set in advance and adjusting step value determined.
24. devices as described in claim 22 or 23, it is characterised in that the power output value obtaining unit is additionally operable to pass through
Following formula, determine the corresponding power output value of each carrier signal：
TSSI N_I (dBm)=10*log (IQ Data)+Kdl_value+ (cfrF_A-cfrDB)+(gainF- (fSigPwDB-
feedPwDB))–attN_I-staticAttF_N
Wherein, TSSI N_I are the power output values of i-th carrier wave in n-th signal transmission passage, and IQ Data are preset durations
The base band power meansigma methodss of the carrier wave for inside counting, Kdl_value be to should carrier wave preset gain adjusted value, cfrF_
A-cfrDB be to should signal transmission passage gain adjustment value, gainF is the difference of forward power value and feedback power value,
FSigPwDB feedPwDB are the differences of default forward power value and feedback power value, and attN_I is that n-th signal transmission is led to
The default automatic pad value of i-th carrier wave in road, staticAttF_N are the corresponding static power adjustment of the signal transmission passage
Value.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104796976B (en) * | 2014-01-17 | 2018-09-07 | 北京信威通信技术股份有限公司 | A kind of terminal reception gain self-adapting regulation method |
| CN103857026B (en) * | 2014-02-27 | 2017-05-10 | 京信通信系统（广州）有限公司 | Downlink signal processing device and method, signal processing system and a signal processing method |
| CN106571879A (en) * | 2015-10-12 | 2017-04-19 | 中兴通讯股份有限公司 | Power detection method and device |
| CN105611619B (en) * | 2016-01-11 | 2018-10-23 | 中国电子科技集团公司第十研究所 | Multi-carrier power adaptation control circuit module |
| US9730165B2 (en) * | 2016-01-12 | 2017-08-08 | Qualcomm Incorporated | Techniques for modifying transceiver power during digital pre-distortion training |
| CN106102152B (en) * | 2016-05-31 | 2020-02-14 | 武汉虹信通信技术有限责任公司 | Multi-system digital power balance control output method and control device thereof |
| CN107529215B (en) * | 2016-06-21 | 2021-01-08 | 中兴通讯股份有限公司 | Power control method of radio frequency transmission module and radio frequency transmission module |
| CN107979421B (en) * | 2016-10-24 | 2020-03-27 | 中兴通讯股份有限公司 | Method and device for time delay compensation on RRU side |
| CN111277347B (en) * | 2018-12-04 | 2023-01-10 | 深圳市中兴微电子技术有限公司 | Power statistical method, device and computer readable storage medium |
| CN109462431B (en) * | 2018-12-07 | 2021-05-18 | 京信通信系统（中国）有限公司 | Signal gain compensation method and device |
| CN109769293B (en) * | 2018-12-29 | 2021-06-22 | 京信通信系统（中国）有限公司 | RRU calibration method, device, computer equipment and storage medium |
| CN111212436B (en) * | 2019-12-23 | 2023-08-25 | 京信网络系统股份有限公司 | Gain calibration method, device, computer equipment and storage medium |
| CN111818301B (en) * | 2020-06-18 | 2022-02-01 | 珠海云海创远科技有限公司 | Power regulation method, system and feedback device for COFDM (coded orthogonal frequency division multiplexing) image transmission system |
| CN112867042B (en) * | 2020-12-31 | 2023-05-16 | 京信网络系统股份有限公司 | Gain control method, device, base station and storage medium |
| CN113328763B (en) * | 2021-06-03 | 2022-10-25 | 联想(北京)有限公司 | Carrier power control method and device and radio remote unit |
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Correction item: Patentee|Address|Patentee Correct: Comba Telecom Technology (Guangzhou) Co., Ltd.|510663 Guangdong city of Guangzhou Province Economic and Technological Development Zone Jinbi Road No. 6 False: Letter communication system (China) Co., Ltd.|510663 Shenzhou Road, Guangzhou Science City, Guangzhou, Guangzhou economic and Technological Development Zone, Guangdong Province, No. 10|Jingxin Communication System Co., Ltd. (Guangzhou)|Comba Telecom Technology (Guangzhou) Co., Ltd.|TIANJIN COMBA TELECOM SYSTEMS CO., LTD. Number: 11-01 Volume: 34 |
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