CN106506012B - Digital variable gain amplifier calibration method and device - Google Patents
Digital variable gain amplifier calibration method and device Download PDFInfo
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- CN106506012B CN106506012B CN201610851300.XA CN201610851300A CN106506012B CN 106506012 B CN106506012 B CN 106506012B CN 201610851300 A CN201610851300 A CN 201610851300A CN 106506012 B CN106506012 B CN 106506012B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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Abstract
The invention discloses a kind of digital variable gain amplifier calibration methods, it include: acquisition radio frequency reception link within the preset time cycle, the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage, and the deviation variable of each frequency range is calculated using deviation of the sample channel of each frequency range under each gain stage, and compensate respectively to the channel in each frequency range according to the deviation variable of each frequency range.The invention also discloses a kind of digital variable gain amplifier calibrating installations, by the deviation for acquiring DVGA OFFSET of the sample channel of radio frequency reception link each frequency range within the preset time cycle under each gain stage, the deviation variable of each frequency range can be calculated, so that deviation of the deviation variable based on each frequency range to the DVGA OFFSET of the channel in each frequency range compensates, to realize that DVGA is calibrated, ensure the problems such as receiving signal stabilization, avoiding the occurrence of suspension call drop.
Description
Technical field
The present invention relates to technical field of mobile terminals more particularly to a kind of digital variable gain amplifier (Digital
Variable Gain Amplifier, DVGA) calibration method and device.
Background technique
Mobile phone is required using specific instrument before factory to the radio-frequency transmissions link of mobile phone and radio frequency reception link
Index is calibrated, and so as to upon completion of the calibration, the radio-frequency transmissions link of mobile phone and the index of radio frequency reception link meet preset
Standard, can normally use.Currently, being mainly the school of mobile phone reception gain to the calibration of the radio frequency reception link of mobile phone
Standard, the DVGA calibration of the overall gain grade including entire link and the school low-noise amplifier (Low Noise Amplifier, LAN)
It is quasi-.It is to choose highest-gain grade LAN0 as entire link when carrying out DVGA calibration to mobile phone for high-pass platform
The gain stage of DVGA calibration, to obtain unified DVGA gain offsets value (OFFSET), and in real work scene, mobile phone
Radio frequency reception link, which is in the gain offsets value compensated under different gains grade and is all based on above-mentioned unified DVGA OFFSET, to be obtained
's.
However, mobile phone is in actual use, since the radio frequency reception link of mobile phone is in the increasing compensated under different gains grade
Beneficial deviant is all based on what unified DVGA OFFSET was obtained, and is not to carry out what DVGA was calibrated to each gain stage,
Therefore, the gain offsets value compensated under each gain stage obtained through the above way the gain practically necessary with each gain stage is inclined
There are errors between shifting value, and with the use of mobile phone, which can be gradually increased.In signal strength close to receiving sensitivity
When (receiving sensitivity is exactly the minimum reception power that useful signal can be correctly received in radio frequency reception link), due to depositing
In above-mentioned error, mobile phone received signal will be caused unstable, thus phenomena such as generating suspension call drop.
Summary of the invention
The main purpose of the present invention is to provide after a kind of digital variable gain amplifier calibration method and adornment, it is intended to solve
Exist between gain offsets value and each gain stage the gain offsets value actually required certainly compensated under each gain stage in the prior art
Error will lead to the problems such as signal transmission error occurs, brings mobile phone received signal unstable, generate suspension call drop.
To achieve the above object, first aspect present invention provides a kind of digital variable gain amplifier calibration method, the party
Method includes:
Radio frequency reception link is acquired within the preset time cycle, number of the sample channel of each frequency range under each gain stage
The deviation of variable-gain amplifier gain deviant DVGA OFFSET；
Each frequency is calculated using the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage
The deviation variable of section；
The channel in each frequency range is compensated respectively according to the deviation variable of each frequency range, to realize DVGA
Calibration.
To achieve the above object, second aspect of the present invention provides a kind of digital variable gain amplifier calibrating installation, the dress
It sets and includes:
Acquisition module, for acquiring radio frequency reception link within the preset time cycle, the sample channel of each frequency range is each
The deviation of digital variable gain amplifier gain offsets value DVGA OFFSET under gain stage；
Variable computing module, for DVGA OFFSET of the sample channel using each frequency range under each gain stage
Deviation calculates the deviation variable of each frequency range；
Compensating module, for being mended respectively to the channel in each frequency range according to the deviation variable of each frequency range
It repays, to realize that DVGA is calibrated.
The present invention provides a kind of digital variable gain amplifier calibration method, this method comprises: acquisition radio frequency reception link
Within the preset time cycle, the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage, and using respectively
Deviation of the sample channel of frequency range under each gain stage calculates the deviation variable of each frequency range, and according to the deviation of each frequency range
Variable respectively compensates the channel in each frequency range, to realize that DVGA is calibrated.By acquisition radio frequency reception link preset
The mode of the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage in time cycle can obtain each
The deviation variable of frequency range, so that the deviation variable based on each frequency range is to the DVGA OFFSET's of the channel in each frequency range
Deviation compensates, and to realize that DVGA is calibrated, the error of each gain stage is made up, to ensure radio frequency reception link received signal
The problems such as stablizing, avoiding the occurrence of suspension call drop.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those skilled in the art without any creative labor, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural block diagram of mobile terminal；
Fig. 2 is the flow diagram of digital variable gain amplifier calibration method in first embodiment of the invention；
Fig. 3 is the flow diagram of the refinement step of step 202 in first embodiment shown in Fig. 2 of the present invention；
Fig. 4 is the flow diagram of the refinement step of step 302 shown in Fig. 3 of the present invention；
Fig. 5 is the flow diagram of the refinement step of step 203 in first embodiment shown in Fig. 2 of the present invention；
Fig. 6 is the schematic diagram of the functional module of digital variable gain amplifier calibrating installation in second embodiment of the invention；
Fig. 7 is the schematic diagram of the refinement functional module of variable computing module 602 in second embodiment shown in Fig. 6 of the present invention；
Fig. 8 is the schematic diagram of the refinement functional module of the second computing module 702 shown in Fig. 7 of the present invention；
Fig. 9 is the schematic diagram of the refinement functional module of compensating module 603 in second embodiment shown in Fig. 6 of the present invention.
Specific embodiment
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, and not all embodiments.Based on the embodiments of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 shows a kind of structural block diagram of mobile terminal.Digital variable gain amplifier provided in an embodiment of the present invention
Calibration method can be applied in mobile terminal 10 as shown in Figure 1, and mobile terminal 10 can be, but not limited to include: that need to rely on battery
Maintain smart phone, notebook, tablet computer, the wearing smart machine etc. that operate normally and support network and download function.
As shown in Figure 1, mobile terminal 10 includes memory 101, storage control 102, one or more (is only shown in figure
One) processor 103, Peripheral Interface 104, radio-frequency module 105, key module 106, audio-frequency module 107 and Touch Screen
108.These components are mutually communicated by one or more communication bus/signal wire 109.
It is appreciated that structure shown in FIG. 1 is only to illustrate, the structure of mobile terminal is not caused to limit.It is mobile whole
End 10 may also include than shown in Fig. 1 more perhaps less component or with the configuration different from shown in Fig. 1.It is shown in FIG. 1
Each component can be realized using hardware, software, or its combination.
Memory 101 can be used for storing software program and module, as the digitally controlled variable gain in the embodiment of the present invention is put
Big device calibration method and the corresponding program instruction/module of device, processor 103 are stored in soft in memory 101 by operation
Part program and module realize above-mentioned digitally controlled variable gain amplification thereby executing various function application and data processing
Device calibration method.
Memory 101 may include high speed random access memory, may also include nonvolatile memory, such as one or more magnetic
Property storage device, flash memory or other non-volatile solid state memories.In some instances, memory 101 can further comprise
The memory remotely located relative to processor 103, these remote memories can pass through network connection to mobile terminal 10.On
The example for stating network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.Processor 103
And other possible components can carry out the access of memory 101 under the control of storage control 102.
Various input/output devices are couple CPU and memory 101 by Peripheral Interface 104.The operation of processor 103 is deposited
Various softwares, instruction in reservoir 101 are to execute the various functions of mobile terminal 10 and carry out data processing.
In some embodiments, Peripheral Interface 104, processor 103 and storage control 102 can be in one single chips
It realizes.In some other example, they can be realized by independent chip respectively.
Radio-frequency module 105 is used to receive and transmit electromagnetic wave, realizes the mutual conversion of electromagnetic wave and electric signal, thus with
Communication network or other equipment are communicated.Radio-frequency module 105 may include various existing for executing the electricity of these functions
Circuit component, for example, antenna, RF transceiver, digital signal processor, encryption/deciphering chip, subscriber identity module (SIM) card,
Memory etc..Radio-frequency module 105 can be with the wireless network progress of various networks such as internet, intranet, preset type
Communication is communicated by the wireless network of preset type with other equipment.The wireless network of above-mentioned preset type can wrap
Include cellular telephone networks, WLAN or Metropolitan Area Network (MAN).Various communications can be used in the wireless network of above-mentioned preset type
Standard, agreement and technology, including but not limited to global system for mobile communications (Global System for Mobile
Communication, GSM), enhanced mobile communication technology (Enhanced Data GSM Environment, EDGE) is wide
Band Code Division Multiple Access (Wideband Code Division Multiple Access, W-CDMA), Code Division Multiple Access
(Code Division Access, CDMA), time division multiple access technology (Time Division Multiple Access, TDMA),
Bluetooth, adopting wireless fidelity technology (Wireless-Fidelity, WiFi) (such as American Institute of Electrical and Electronics Engineers's standard IEEE
802.11a, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n), the networking telephone (Voice over
Internet Protocal, VoIP), worldwide interoperability for microwave accesses (Worldwide Interoperability for
Microwave Access, Wi-Max), other for mail, instant messaging and short message agreement and any other is suitable
Communications protocol.
Key module 106 provides the interface that is inputted to mobile terminal of user, user can by press it is different by
Key is so that mobile terminal 10 executes different functions.
Audio-frequency module 107 provides a user audio interface, may include one or more microphones, one or more raises
Sound device and voicefrequency circuit.Voicefrequency circuit receives voice data from Peripheral Interface 104, and voice data is converted to power information,
Power information is transmitted to loudspeaker.Power information is converted to the sound wave that human ear can be heard by loudspeaker.Voicefrequency circuit is also from microphone
Place receive power information, convert electrical signals to voice data, and by data transmission in network telephony into Peripheral Interface 104 to carry out into one
The processing of step.Audio data can obtain from memory 101 or through radio-frequency module 105.In addition, audio data can also be with
It stores into memory 101 or is sent by radio-frequency module 105.In some instances, audio-frequency module 107 may also include
One earphone broadcasts hole, for providing audio interface to earphone or other equipment.
Touch Screen 108 provides an output and input interface simultaneously between mobile terminal and user.Specifically, touch-control
Screen 108 shows video output to user, and the content of these videos output may include text, figure, video and its any group
It closes.Some outputs are the result is that correspond to some user interface objects.Touch Screen 108 also receives the input of user, such as user
The gesture operations such as click, sliding, so that user interface object responds the input of these users.Detect user's input
Technology can be based on resistance-type, condenser type or any other possible touch control detection technology.108 display unit of Touch Screen
Specific example include but is not limited to liquid crystal display or light emitting polymer displays.
Digital variable gain amplifier calibration method in the embodiment of the present invention is described based on above-mentioned mobile terminal.
Due to the gain offsets value and each gain stage gain offsets actually required in the prior art, compensated under each gain stage
There are errors between value, will lead to signal transmission and error occur, bring mobile phone received signal unstable, generate suspension call drop etc.
Problem.
To solve the above-mentioned problems, the present invention proposes a kind of digital variable gain amplifier calibration method, is penetrated by acquisition
The deviation of DVGA OFFSET of the sample channel of frequency receives link each frequency range within the preset time cycle under each gain stage
Mode, the deviation variable of each frequency range can be calculated, so that the deviation variable based on each frequency range is to the letter in each frequency range
The deviation of the DVGA OFFSET in road compensates, and to realize that DVGA is calibrated, the error of each gain stage is made up, to ensure radio frequency
The problems such as receives link received signal is stablized, and suspension call drop is avoided the occurrence of.
Referring to Fig. 2, for the flow diagram of digital variable gain amplifier calibration method in first embodiment of the invention,
This method comprises:
Step 201, acquisition radio frequency reception link are within the preset time cycle, and the sample channel of each frequency range is in each gain stage
Under DVGA OFFSET deviation；
In embodiments of the present invention, digital variable gain amplifier calibration method is by digital variable gain amplifier calibration cartridge
It sets and (hereinafter referred to as are as follows: calibrating installation) executes, and the calibrating installation is a part in mobile terminal shown in Fig. 1.
In embodiments of the present invention, include radio frequency link in mobile terminal, specifically connect comprising radio frequency transmission link and radio frequency
Link is received, which is used to receive the signal of external transmission.The usual radio frequency reception link includes antenna, LAN, mixes
Frequency device, DVGA, demodulator, and the path of radio frequency reception link received signals is: antenna-LAN- frequency mixer-DVGA- demodulator,
Wherein, the signal that demodulator can only receive certain power could reconcile, i.e. the power of arrival demodulator must be fixed.This hair
Calibration method in bright embodiment is to make radio frequency reception in such a way that mobile terminal in use calibrates DVGA
Demodulator receives the signal of certain power in link, so that the radio frequency reception link of mobile terminal can normally work.
In embodiments of the present invention, mobile terminal is in the case where normal cluster (i.e. registered mobile network), calibration cartridge
DVGA will be calibrated by setting, to guarantee that the radio frequency reception link of mobile terminal can work normally, wherein calibrating installation be with
One preset time cycle is what the period was calibrated, for example, the time cycle can be a hour or 2 hours
Deng, and it is understood that in practical applications, which can be configured according to specific circumstances, this
Place is without limitation.
In embodiments of the present invention, multiple frequency ranges can be used in radio-frequency transmissions link, and each frequency range has multiple letters
Consumed resource is calibrated to reduce in road, sample channel, example will be determined from all channels of frequency range according to presetting rule
Such as, if a frequency range has 20 channels, using the 1st, 5,10,15,20 channel as sample channel.
Wherein, calibrating installation will acquire radio frequency reception link within the preset time cycle, and the sample channel of each frequency range exists
The deviation of DVGA OFFSET under each gain stage.
Technical solution in embodiment in order to better understand the present invention please refers to table 1, which is each sampling of frequency range A
The deviation of DVGA OFFSET of the channel under different gains grade.
The deviation of DVGA OFFST of each sample channel of 1 frequency range A of table under each gain stage
In embodiments of the present invention, the gain stage of radio frequency reception link is divided into LAN0 to LAN4 totally 5 kinds of different ranks, and
The gain stage highest of LAN0.
Wherein, deviation of the channel under gain stage refers to the collected DVGA OFFSET relative to pre-set
Deviation of the channel between the standard deviation value under the gain stage.By taking sample channel 2 in frequency range A is in LAN2 as an example, elder generation is needed
DVGA OFFSET of the sample channel 2 at LAN2 is acquired, and calculates the DVGA OFFSET and exists with pre-set sample channel 2
The difference between standard deviation value under LAN2, the difference are deviation Δ G22.
Step 202, the deviation of DVGA OFFSET using the sample channel of each frequency range under each gain stage calculate
The deviation variable of each frequency range；
Step 203 respectively compensates the channel in each frequency range according to the deviation variable of each frequency range, with
Realize DVGA calibration.
In embodiments of the present invention, DVGA of the calibrating installation in the sample channel for obtaining each frequency range under each gain stage
After the deviation of OFFSTE, by the deviation of the DVGA OFFSET using the sample channel of each frequency range under each gain stage
The deviation variable of each frequency range is calculated, and the channel in each frequency range is mended respectively according to the deviation variable of each frequency range
It repays, to realize that DVGA is calibrated.
In embodiments of the present invention, calibrating installation acquires radio frequency reception link within the preset time cycle, each frequency range
The deviation of DVGA OFFSET of the sample channel under each gain stage, and using the sample channel of each frequency range under each gain stage
Deviation calculate the deviation variable of each frequency range, and according to the deviation variable of each frequency range respectively to the channel in each frequency range into
Row compensation, to realize that DVGA is calibrated.By the sample channel for acquiring radio frequency reception link each frequency range within the preset time cycle
The mode of the deviation of DVGA OFFSET under each gain stage can calculate the deviation variable of each frequency range, to be based on being somebody's turn to do
The deviation variable of each frequency range compensates the deviation of the DVGA OFFSET of the channel in each frequency range, to realize the school DVGA
Standard makes up the error of each gain stage, to ensure that radio frequency reception link received signal is stablized, avoids the occurrence of suspension call drop etc. and asks
Topic.
Referring to Fig. 3, for the flow diagram of the refinement step of step 202 in first embodiment shown in Fig. 2, the step
202 refinement step includes:
Step 301, the deviation using the sample channel of each frequency range under each gain stage calculate each frequency range and exist
Corresponding deviation mean value under each gain stage；
Step 302, according to each frequency range under each gain stage corresponding deviation mean value, calculate each frequency range
Deviation variable.
In embodiments of the present invention, DVGA of the calibrating installation in the sample channel for obtaining each frequency range under each gain stage
After the deviation of OFFSET, by the deviation using the sample channel of each frequency range under each gain stage, each frequency range is calculated each
Corresponding deviation mean value under gain stage.
For the table 1 in first embodiment shown in 2, need to calculate frequency range A in each gain stage (i.e. LAN0 to LAN4)
Under deviation mean value, specifically, the deviation mean value for frequency range A at LAN0, can be calculated according to following formula:
Δ G0=(Δ G01+ Δ G02+ ...+Δ G0N)/N
Wherein, Δ G0 indicates deviation mean value of the frequency range A at LAN0, and Δ G01 to Δ G0N indicates that frequency range A is each at LAN0
The deviation of the DVGA OFFSET of sample channel, N indicate the total number of sample channel.
It is understood that being based on above-mentioned formula, deviation mean value of the frequency range A under other gain stages can also be obtained, it can
Table 2 is obtained, table 2 is as follows.
Table 2
In embodiments of the present invention, calibrating installation obtain each frequency range under each gain stage corresponding deviation mean value it
Afterwards, it can be made it possible to according to the deviation variable of each frequency range corresponding each frequency range of deviation mean value computation under each gain stage
Enough deviation variables based on each frequency range compensate the channel of each frequency range, to realize that DVGA is calibrated, make up each gain stage
Error, to ensure that radio frequency reception link received signal is stablized, the problems such as avoiding the occurrence of suspension call drop.
Referring to Fig. 4, the flow diagram of the refinement step for step 302 shown in Fig. 3 of the present invention, the step 302 include:
Step 401, using each frequency range, corresponding deviation mean value carries out averaging operation under each gain stage, obtains
To the deviation mean value of each frequency range；
Step 402, the deviation mean value for determining each frequency range respectively and preset each frequency range standard deviation value it
Between difference, using obtained difference as the deviation variable of each frequency range.
In embodiments of the present invention, calibrating installation obtain each frequency range under each gain stage corresponding deviation mean value it
Afterwards, will using each frequency range, corresponding deviation mean value carries out averaging operation under each gain stage, obtain the deviation of each frequency range
Mean value, for example, 5 frequency ranges if it exists, then will be utilized respectively the corresponding deviation mean value under each gain stage of 5 frequency ranges
Averaging operation is carried out, the deviation mean value of 5 frequency ranges is obtained.
For the table 2 shown in Fig. 3, when calculating the deviation mean value of frequency range A, need frequency range A in gain stage
The deviation mean value of LAN0 to LAN4 is averaging, specific:
DVGA OFFSET_A=(Δ G0+ Δ G1+ Δ G2+ Δ G3+ Δ G4)/4
It is understood that being based on aforesaid way, the deviation mean value of each frequency range can be obtained.
In embodiments of the present invention, calibrating installation will determine each frequency range after obtaining the deviation mean value of each frequency range respectively
Deviation mean value and preset each frequency range standard deviation value between difference, using obtained difference as the deviation of each frequency range
Variable, for example, needing the deviation mean value by frequency range A to subtract the standard deviation value of preset frequency range A, and incite somebody to action frequency range A
Deviation variable of the difference arrived as frequency range A, specifically, following formula can be used:
Δ G (A)=DVGA OFFSET_A-DVGA OFFSET_A0
Wherein, Δ G (A) indicates that the deviation variable of frequency range A, DVGA OFFSET_A indicate the deviation mean value of frequency range A,
The standard deviation value of DVGA OFFSET_A0 expression frequency range A.
It is understood that by the above-mentioned means, the deviation variable of each frequency range can be calculated.
In embodiments of the present invention, calibrating installation obtain each frequency range under each gain stage corresponding deviation mean value it
Afterwards, will using each frequency range, corresponding deviation mean value carries out averaging operation under each gain stage, obtain the deviation of each frequency range
Mean value, and the difference between the deviation mean value of each frequency range and the standard deviation value of preset each frequency range is determined respectively, by what is obtained
Deviation variable of the difference as each frequency range makes it possible to the deviation variable based on each frequency range and mends to the channel of each frequency range
It repays, to realize that DVGA is calibrated, makes up the error of each gain stage, to ensure that radio frequency reception link received signal is stablized, avoid out
The problems such as existing suspension call drop.
Referring to Fig. 5, for the flow diagram of the refinement step of step 203 in first embodiment shown in Fig. 2 of the present invention, it should
Step 203 includes:
Step 501 judges whether the deviation variable of i-th of frequency range is in preset deviation range, the value of the i from
1 to N, the N are frequency range sum；
Step 502, when the deviation variable of i-th of frequency range is in the deviation range, it is determined that do not need to institute
Each channel for stating i-th of frequency range compensates；
If the deviation variable of step 503, i-th of frequency range compensates described i-th not in the deviation range
The deviation of the DVGA OFFSET of all channels of frequency range.
In embodiments of the present invention, for calibrating installation after the deviation variable for calculating each frequency range, calibrating installation will successively
Each frequency range is handled, by taking i-th each frequency range as an example, the i to from 1 to N, and N is frequency range sum, calibrating installation will judgement should
Whether the deviation variable of i-th of frequency range is in preset deviation range, is somebody's turn to do if the deviation variable of i-th of frequency range is in
In preset deviation range, then shows that the gain deviation of i-th of frequency range is smaller, it is normal not interfere with radio frequency reception link
Determination is not needed to compensate each channel of i-th each frequency range by work, therefore, calibrating installation.
In embodiments of the present invention, if the deviation variable of i-th of frequency range is not in the preset deviation range,
Show that the gain deviation of i-th of frequency range is larger, if uncompensation, it will influence radio frequency reception link normal work, therefore, school
Standard apparatus will compensate the deviation of the DVGA OFFSET of all channels of i-th of frequency range, so that i-th after compensation
Frequency range is in preset deviation range in the deviation variable in next time cycle, to guarantee that the radio frequency of mobile terminal connects
Receiving link can normally work.It should be noted that specifically how to realize that compensation is the prior art, it is not repeated herein.
It is understood that all whether will need to carry out to the frequency range in the way of step 501 for each frequency range
Compensation is judged, to complete the DVGA calibration to all frequency ranges.
In embodiments of the present invention, calibrating installation is by judging whether the deviation variable of i-th of frequency range is preset
Mode in deviation range determines whether i-th of frequency range needs to compensate, and in the deviation variable of i-th of frequency range not at this
When in preset deviation range, the deviation of the DVGA OFFSET of all channels of i-th of frequency range is compensated, to realize to this
The DVGA calibration of i-th frequency range, and by the above-mentioned means, the DVGA calibration to all frequency ranges can be completed, it can effectively make up
The error of each gain stage, to ensure that radio frequency reception link received signal is stablized, the problems such as avoiding the occurrence of suspension call drop.
It should be noted that in the first embodiment, also following steps will be executed after calibration is completed for calibrating installation:
Delete DVGA of the sample channel of each frequency range acquired within the time cycle under each gain stage
The deviation of OFFSET, and when entering next time cycle, return to step 201.
In embodiments of the present invention, it after calibrating installation completes DVGA calibration, will delete in the above-mentioned preset time cycle
The deviation of DVGA OFFSET of the sample channel of each frequency range of interior acquisition under each gain stage, to avoid these deviations are stored
It is worth the occupancy of bring memory space.And calibrating installation will also enter next time cycle, and enter next week time
After phase, step 201 shown in Fig. 2 will be returned to, i.e. calibrating installation will acquire radio frequency reception link in next time cycle
It is interior, the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage, so as within next time cycle
The DVGA calibration for realizing radio frequency reception link, to ensure that radio frequency reception link can be worked normally when receiving signal, and passes through
The mode that above-mentioned circulation is repeatedly calibrated can realize the DVGA calibration to radio frequency reception link in real time.
Referring to Fig. 6, for the functional module of digital variable gain amplifier calibrating installation in second embodiment of the invention
Schematic diagram, the calibrating installation include: acquisition module 601, variable computing module 602 and compensating module 603.
Acquisition module 601, for acquiring radio frequency reception link within the preset time cycle, the sample channel of each frequency range exists
The deviation of digital variable gain amplifier gain offsets value DVGA OFFSET under each gain stage；
In embodiments of the present invention, digital variable gain amplifier calibrating installation (hereinafter referred to as are as follows: calibrating installation) is Fig. 1
A part in shown mobile terminal.
In embodiments of the present invention, include radio frequency link in mobile terminal, specifically connect comprising radio frequency transmission link and radio frequency
Link is received, which is used to receive the signal of external transmission.The usual radio frequency reception link includes antenna, LAN, mixes
Frequency device, DVGA, demodulator, and the path of radio frequency reception link received signals is: antenna-LAN- frequency mixer-DVGA- demodulator,
Wherein, the signal that demodulator can only receive certain power could reconcile, i.e. the power of arrival demodulator must be fixed.This hair
Calibrating installation in bright embodiment is to make radio frequency reception in such a way that mobile terminal in use calibrates DVGA
Demodulator receives the signal of certain power in link, so that the radio frequency reception link of mobile terminal can normally work.
In embodiments of the present invention, mobile terminal is in the case where normal cluster (i.e. registered mobile network), calibration cartridge
DVGA will be calibrated by setting, to guarantee that the radio frequency reception link of mobile terminal can work normally, wherein calibrating installation be with
One preset time cycle is what the period was calibrated, for example, the time cycle can be a hour or 2 hours
Deng, and it is understood that in practical applications, which can be configured according to specific circumstances, this
Place is without limitation.
In embodiments of the present invention, multiple frequency ranges can be used in radio-frequency transmissions link, and each frequency range has multiple letters
Consumed resource is calibrated to reduce in road, sample channel, example will be determined from all channels of frequency range according to presetting rule
Such as, if a frequency range has 20 channels, using the 1st, 5,10,15,20 channel as sample channel.
Wherein, the acquisition module 601 in calibrating installation will acquire radio frequency reception link within the preset time cycle, each frequency
The deviation of DVGA OFFSET of the sample channel of section under each gain stage.
Technical solution in embodiment in order to better understand the present invention please refers to the table in first embodiment shown in Fig. 2
1, the deviation for DVGA OFFSET of each sample channel under different gains grade which is frequency range A, and specifically, the table 1
It is as follows:
The deviation of DVGA OFFST of each sample channel of 1 frequency range A of table under each gain stage
In embodiments of the present invention, the gain stage of radio frequency reception link is divided into LAN0 to LAN4 totally 5 kinds of different ranks, and
The gain stage highest of LAN0.
Wherein, deviation of the channel under gain stage refers to the collected DVGA OFFSET relative to pre-set
Deviation of the channel between the standard deviation value under the gain stage.By taking sample channel 2 in frequency range A is in LAN2 as an example, elder generation is needed
DVGA OFFSET of the sample channel 2 at LAN2 is acquired, and calculates the DVGA OFFSET and exists with pre-set sample channel 2
The difference between standard deviation value under LAN2, the difference are deviation Δ G22.
Variable computing module 602, for DVGA OFFSET of the sample channel using each frequency range under each gain stage
Deviation calculate the deviation variable of each frequency range；
Compensating module 603, for according to the deviation variable of each frequency range respectively to the channel in each frequency range into
Row compensation, to realize that DVGA is calibrated.
In embodiments of the present invention, DVGA of the calibrating installation in the sample channel for obtaining each frequency range under each gain stage
After the deviation of OFFSTE, variable computing module 602 will utilize DVGA of the sample channel of each frequency range under each gain stage
The deviation of OFFSET calculates the deviation variable of each frequency range, and by compensating module 603 according to the deviation variable of each frequency range
The channel in each frequency range is compensated respectively, to realize that DVGA is calibrated.
In embodiments of the present invention, calibrating installation acquires radio frequency reception link within the preset time cycle, each frequency range
The deviation of DVGA OFFSET of the sample channel under each gain stage, and using the sample channel of each frequency range under each gain stage
Deviation calculate the deviation variable of each frequency range, and according to the deviation variable of each frequency range respectively to the channel in each frequency range into
Row compensation, to realize that DVGA is calibrated.By the sample channel for acquiring radio frequency reception link each frequency range within the preset time cycle
The mode of the deviation of DVGA OFFSET under each gain stage can calculate the deviation variable of each frequency range, to be based on being somebody's turn to do
The deviation variable of each frequency range compensates the deviation of the DVGA OFFSET of the channel in each frequency range, to realize the school DVGA
Standard makes up the error of each gain stage, to ensure that radio frequency reception link received signal is stablized, avoids the occurrence of suspension call drop etc. and asks
Topic.
Referring to Fig. 7, for the refinement functional module of variable computing module 602 in second embodiment shown in Fig. 6 of the present invention
Schematic diagram, the variable computing module 602 include: the first computing module 701 and the second computing module 702.
First computing module 701 is calculated for deviation of the sample channel using each frequency range under each gain stage
Each frequency range corresponding deviation mean value under each gain stage；
Second computing module 702, for corresponding deviation mean value, calculating under each gain stage according to each frequency range
The deviation variable of each frequency range.
In embodiments of the present invention, DVGA of the calibrating installation in the sample channel for obtaining each frequency range under each gain stage
After the deviation of OFFSET, the second computing module 702 will utilize deviation of the sample channel of each frequency range under each gain stage,
Calculate each frequency range corresponding deviation mean value under each gain stage.
For the table 1 in first embodiment shown in 2, need to calculate frequency range A in each gain stage (i.e. LAN0 to LAN4)
Under deviation mean value, specifically, the deviation mean value for frequency range A at LAN0, can be calculated according to following formula:
Δ G0=(Δ G01+ Δ G02+ ...+Δ G0N)/N
Wherein, Δ G0 indicates deviation mean value of the frequency range A at LAN0, and Δ G01 to Δ G0N indicates that frequency range A is each at LAN0
The deviation of the DVGA OFFSET of sample channel, N indicate the total number of sample channel.
It is understood that being based on above-mentioned formula, deviation mean value of the frequency range A under other gain stages can also be obtained, it can
Table 2 shown in Fig. 3 are obtained, and the table 2 is specific as follows.
Table 2
In embodiments of the present invention, calibrating installation obtain each frequency range under each gain stage corresponding deviation mean value it
Afterwards, it can be made it possible to according to the deviation variable of each frequency range corresponding each frequency range of deviation mean value computation under each gain stage
Enough deviation variables based on each frequency range compensate the channel of each frequency range, to realize that DVGA is calibrated, make up each gain stage
Error, to ensure that radio frequency reception link received signal is stablized, the problems such as avoiding the occurrence of suspension call drop.
Referring to Fig. 8, the schematic diagram of the refinement functional module for the second computing module 702 shown in Fig. 7 of the present invention, this second
Computing module 702 includes: third computing module 801 and difference calculating module 802.
Third computing module 801, for corresponding deviation mean value to carry out under each gain stage using each frequency range
It is averaging operation, obtains the deviation mean value of each frequency range；
Difference calculating module 802, for determine respectively each frequency range deviation mean value and preset each frequency
Difference between the standard deviation value of section, using obtained difference as the deviation variable of each frequency range.
In embodiments of the present invention, calibrating installation obtain each frequency range under each gain stage corresponding deviation mean value it
Afterwards, third computing module 801 will corresponding deviation mean value carries out averaging operation under each gain stage using each frequency range, obtains
To the deviation mean value of each frequency range, for example, 5 frequency ranges if it exists, then will be utilized respectively distinguishing under each gain stage for 5 frequency ranges
Corresponding deviation mean value carries out averaging operation, obtains the deviation mean value of 5 frequency ranges.
By taking table 2 shown in fig. 7 as an example, when calculating the deviation mean value of frequency range A, need frequency range A in gain stage
The deviation mean value of LAN0 to LAN4 is averaging, specific:
DVGA OFFSET_A=(Δ G0+ Δ G1+ Δ G2+ Δ G3+ Δ G4)/4
It is understood that being based on aforesaid way, the deviation mean value of each frequency range can be obtained.
In embodiments of the present invention, calibrating installation, will be by difference calculating module after obtaining the deviation mean value of each frequency range
802 determine the difference between the deviation mean value of each frequency range and the standard deviation value of preset each frequency range, the difference that will be obtained respectively
As the deviation variable of each frequency range, for example, needing the deviation mean value by frequency range A to subtract preset frequency range A frequency range A
Standard deviation value, and using obtained difference as the deviation variable of frequency range A, specifically, following formula can be used:
Δ G (A)=DVGA OFFSET_A-DVGA OFFSET_A0
Wherein, Δ G (A) indicates that the deviation variable of frequency range A, DVGA OFFSET_A indicate the deviation mean value of frequency range A,
The standard deviation value of DVGA OFFSET_A0 expression frequency range A.
It is understood that by the above-mentioned means, the deviation variable of each frequency range can be calculated.
In embodiments of the present invention, calibrating installation obtain each frequency range under each gain stage corresponding deviation mean value it
Afterwards, will using each frequency range, corresponding deviation mean value carries out averaging operation under each gain stage, obtain the deviation of each frequency range
Mean value, and the difference between the deviation mean value of each frequency range and the standard deviation value of preset each frequency range is determined respectively, by what is obtained
Deviation variable of the difference as each frequency range makes it possible to the deviation variable based on each frequency range and mends to the channel of each frequency range
It repays, to realize that DVGA is calibrated, makes up the error of each gain stage, to ensure that radio frequency reception link received signal is stablized, avoid out
The problems such as existing suspension call drop.
Referring to Fig. 9, for the signal of the refinement functional module of compensating module 603 in second embodiment shown in Fig. 6 of the present invention
Figure, the compensating module 603 include:
Judgment module 901, for judging whether the deviation variable of i-th of frequency range is in preset deviation range, institute
The value of i is stated from 1 to N, the N is frequency range sum；
Determining module 902, for the deviation variable when i-th of frequency range in the deviation range, it is determined that no
Each channel to i-th of frequency range is needed to compensate；
Deviation compensation module 903, if the deviation variable for i-th of frequency range not in the deviation range,
Compensate the deviation of the DVGA OFFSET of all channels of i-th of frequency range.
In embodiments of the present invention, calibrating installation is after the deviation variable for calculating each frequency range, and judgment module 901 will be according to
It is secondary that each frequency range is handled, by taking i-th each frequency range as an example, the i to from 1 to N, and N is frequency range sum, and judgment module 901 will
Judge whether the deviation variable of i-th of frequency range is in preset deviation range, if the deviation variable of i-th of frequency range
In the deviation range preset in this, then shows that the gain deviation of i-th of frequency range is smaller, do not interfere with radio frequency reception chain
Road works normally, accordingly, it is determined that determination is not needed to compensate each channel of i-th each frequency range by module 902.
In embodiments of the present invention, if the deviation variable of i-th of frequency range is not in the preset deviation range,
Show that the gain deviation of i-th of frequency range is larger, if uncompensation, it will influence radio frequency reception link normal work, therefore, partially
Poor compensating module 903 will compensate the deviation of the DVGA OFFSET of all channels of i-th of frequency range, so that after compensation
I-th of frequency range be in preset deviation range in the deviation variable in next time cycle, to guarantee mobile terminal
Radio frequency reception link can normally work.
It is understood that all whether will need to compensate to the frequency range by judgment module 901 for each frequency range
Judged, to complete the DVGA calibration to all frequency ranges.
In embodiments of the present invention, calibrating installation is by judging whether the deviation variable of i-th of frequency range is preset
Mode in deviation range determines whether i-th of frequency range needs to compensate, and in the deviation variable of i-th of frequency range not at this
When in preset deviation range, the deviation of the DVGA OFFSET of all channels of i-th of frequency range is compensated, to realize to this
The DVGA calibration of i-th frequency range, and by the above-mentioned means, the DVGA calibration to all frequency ranges can be completed, it can effectively make up
The error of each gain stage, to ensure that radio frequency reception link received signal is stablized, the problems such as avoiding the occurrence of suspension call drop.
Further, in embodiments of the present invention, above-mentioned digital variable gain amplifier calibrating installation further include:
It deletes return module (being not shown), for after the compensating module 603, deleting in week time
The deviation of DVGA OFFSET of the sample channel of each frequency range acquired in phase under each gain stage, and it is next entering
When a time cycle, the acquisition module 601 is returned.
In embodiments of the present invention, after calibrating installation completes DVGA calibration, deleting return module will be deleted above-mentioned pre-
The deviation of DVGA OFFSET of the sample channel of each frequency range acquired in the time cycle set under each gain stage, to avoid
Store the occupancy of these deviation bring memory spaces.And calibrating installation will also enter next time cycle, and enter
After next time cycle, acquisition module 601 shown in fig. 6 will be returned, i.e., radio frequency reception link is acquired by acquisition module 601
Within next time cycle, the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage, so as to
The DVGA calibration of radio frequency reception link is realized in next time cycle, to ensure radio frequency reception link energy when receiving signal
It is enough to work normally, and in such a way that above-mentioned circulation is repeatedly calibrated, the school DVGA to radio frequency reception link can be realized in real time
It is quasi-.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the module, only
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple module or components can be tied
Another system is closed or is desirably integrated into, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or logical of device or module
Letter connection can be electrical property, mechanical or other forms.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical module, it can and it is in one place, or may be distributed over multiple
On network module.Some or all of the modules therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in a processing module
It is that modules physically exist alone, can also be integrated in two or more modules in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.
If the integrated module is realized in the form of software function module and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
It should be noted that for the various method embodiments described above, describing for simplicity, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because
According to the present invention, certain steps can use other sequences or carry out simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules might not all be this hair
Necessary to bright.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
The above are the description to a kind of digital variable gain amplifier calibration method provided by the present invention and device, for
Those skilled in the art, thought according to an embodiment of the present invention have change in specific embodiments and applications
Place, to sum up, the contents of this specification are not to be construed as limiting the invention.
Claims (10)
1. a kind of digital variable gain amplifier calibration method, which is characterized in that the described method includes:
Radio frequency reception link is acquired within the preset time cycle, digital variable of the sample channel of each frequency range under each gain stage
The deviation of gain amplifier gain deviant DVGA OFFSET；
Each frequency range is calculated using the deviation of DVGA OFFSET of the sample channel of each frequency range under each gain stage
Deviation variable；
The channel in each frequency range is compensated respectively according to the deviation variable of each frequency range, to realize the school DVGA
It is quasi-.
2. the method according to claim 1, wherein the sample channel using each frequency range is in each gain
Deviation the step of calculating the deviation variable of each frequency range under grade includes:
Using deviation of the sample channel of each frequency range under each gain stage, calculates each frequency range and divide under each gain stage
Not corresponding deviation mean value；
According to each frequency range under each gain stage corresponding deviation mean value, calculate the deviation variable of each frequency range.
3. according to the method described in claim 2, it is characterized in that, described right respectively under each gain stage according to each frequency range
The deviation mean value answered, the step of calculating the deviation variable of each frequency range include:
Using each frequency range, corresponding deviation mean value carries out averaging operation under each gain stage, obtains each frequency range
Deviation mean value；
The difference between the deviation mean value of each frequency range and the standard deviation value of preset each frequency range is determined respectively, will
Deviation variable of the difference arrived as each frequency range.
4. according to claim 1 to method described in 3 any one, which is characterized in that the deviation according to each frequency range
Value variable respectively compensates the channel in each frequency range, includes: the step of DVGA calibration to realize
Judge whether the deviation variable of i-th of frequency range is in preset deviation range, from 1 to N, the N is the value of the i
Frequency range sum；
When the deviation variable of i-th of frequency range is in the deviation range, it is determined that do not need to i-th of frequency range
Each channel compensates；
If the deviation variable of i-th of frequency range not in the deviation range, compensates all letters of i-th of frequency range
The deviation of the DVGA OFFSET in road.
5. according to claim 1 to method described in 3 any one, which is characterized in that the deviation according to each frequency range
Value variable respectively compensates the channel in each frequency range, includes: to realize the step of DVGA is calibrated later
Delete DVGA OFFSET of the sample channel of each frequency range acquired within the time cycle under each gain stage
Deviation, and when entering next time cycle, it returns and executes the acquisition radio frequency reception link in the preset time
In period, digital variable gain amplifier gain offsets value DVGA OFFSET of the sample channel of each frequency range under each gain stage
Deviation the step of.
6. a kind of digital variable gain amplifier calibrating installation, which is characterized in that described device includes:
Acquisition module, for acquiring radio frequency reception link within the preset time cycle, the sample channel of each frequency range is in each gain
The deviation of digital variable gain amplifier gain offsets value DVGA OFFSET under grade；
Variable computing module, the deviation for DVGA OFFSET of the sample channel using each frequency range under each gain stage
Value calculates the deviation variable of each frequency range；
Compensating module, for being compensated respectively to the channel in each frequency range according to the deviation variable of each frequency range,
To realize that DVGA is calibrated.
7. device according to claim 6, which is characterized in that the variable computing module includes:
First computing module calculates described each for deviation of the sample channel using each frequency range under each gain stage
Frequency range corresponding deviation mean value under each gain stage；
Second computing module, for corresponding deviation mean value, calculating to be described each under each gain stage according to each frequency range
The deviation variable of frequency range.
8. device according to claim 7, which is characterized in that second computing module includes:
Third computing module, for corresponding deviation mean value to carry out averaging fortune under each gain stage using each frequency range
It calculates, obtains the deviation mean value of each frequency range；
Difference calculating module, for determining the deviation mean value of each frequency range and the standard deviation of preset each frequency range respectively
Difference between value, using obtained difference as the deviation variable of each frequency range.
9. according to device described in claim 6 to 8 any one, which is characterized in that the compensating module includes:
Judgment module, for judging whether the deviation variable of i-th of frequency range is in preset deviation range, the value of the i
From 1 to N, the N is frequency range sum；
Determining module, for the deviation variable when i-th of frequency range in the deviation range, it is determined that do not need to institute
Each channel for stating i-th of frequency range compensates；
Deviation compensation module, if the deviation variable for i-th of frequency range not in the deviation range, compensation described in
The deviation of the DVGA OFFSET of all channels of i-th of frequency range.
10. according to device described in claim 6 to 8 any one, which is characterized in that described device further include:
Return module is deleted, for deleting each frequency range acquired within the time cycle after the compensating module
The deviation of DVGA OFFSET of the sample channel under each gain stage return and when entering next time cycle
The acquisition module.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411312A (en) * | 2001-10-08 | 2003-04-16 | Lg电子株式会社 | Apparatus and method for compensating transmitting power in mobile terminal |
| US7020449B2 (en) * | 2002-10-21 | 2006-03-28 | Broadcom Corporation | Fast settling variable gain amplifier with DC offset cancellation |
| CN1781266A (en) * | 2003-04-21 | 2006-05-31 | 三洋电机株式会社 | Reception device |
| CN101013914A (en) * | 2007-02-15 | 2007-08-08 | 中兴通讯股份有限公司 | Automatic gain control method and device for WCDMA mobile terminal |
| CN101340198A (en) * | 2008-08-28 | 2009-01-07 | 深圳华为通信技术有限公司 | Calibration method, apparatus and system for RF receiver |
| CN102231905A (en) * | 2011-06-20 | 2011-11-02 | 合肥东芯通信股份有限公司 | Automatic gain control method and device for long term evolution (LTE) system |
| CN105322975A (en) * | 2015-11-25 | 2016-02-10 | 上海斐讯数据通信技术有限公司 | Method and device for adjusting digital variable gain amplifier |
-
2016
- 2016-09-26 CN CN201610851300.XA patent/CN106506012B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411312A (en) * | 2001-10-08 | 2003-04-16 | Lg电子株式会社 | Apparatus and method for compensating transmitting power in mobile terminal |
| US7020449B2 (en) * | 2002-10-21 | 2006-03-28 | Broadcom Corporation | Fast settling variable gain amplifier with DC offset cancellation |
| CN1781266A (en) * | 2003-04-21 | 2006-05-31 | 三洋电机株式会社 | Reception device |
| CN101013914A (en) * | 2007-02-15 | 2007-08-08 | 中兴通讯股份有限公司 | Automatic gain control method and device for WCDMA mobile terminal |
| CN101340198A (en) * | 2008-08-28 | 2009-01-07 | 深圳华为通信技术有限公司 | Calibration method, apparatus and system for RF receiver |
| CN102231905A (en) * | 2011-06-20 | 2011-11-02 | 合肥东芯通信股份有限公司 | Automatic gain control method and device for long term evolution (LTE) system |
| CN105322975A (en) * | 2015-11-25 | 2016-02-10 | 上海斐讯数据通信技术有限公司 | Method and device for adjusting digital variable gain amplifier |
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