CN108649991B - A kind of processing method and mobile terminal of harmonic wave interference - Google Patents
A kind of processing method and mobile terminal of harmonic wave interference Download PDFInfo
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- CN108649991B CN108649991B CN201810402223.9A CN201810402223A CN108649991B CN 108649991 B CN108649991 B CN 108649991B CN 201810402223 A CN201810402223 A CN 201810402223A CN 108649991 B CN108649991 B CN 108649991B
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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Abstract
The present invention provides the processing method and mobile terminal of a kind of harmonic wave interference, wherein the processing method of the harmonic wave interference includes: to detect the work at present scene of the radio frequency system of mobile terminal；When harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, the nonlinear device controlled in radio frequency system works in linear zone, wherein when nonlinear device works in linear zone, the input signal of nonlinear device is linear related to output signal.The present invention can improve the linearity of nonlinear device working condition, to reduce harmonic wave interference, promote radio-frequency performance；Also, radio circuit is simple in the embodiment of the present invention, can save circuit design cost.
Description
Technical field
The present invention relates to field of communication technology more particularly to the processing methods and mobile terminal of a kind of harmonic wave interference.
Background technique
Harmonic wave interference is a great problem that the radio frequency system of multi-band communication is faced, for example, LTE (Long Term
Evolution, long term evolution) descending carrier polymerization in the case where main carrier transmitting frequency range harmonic wave interference secondary carrier reception,
The reception etc. of LTE and the harmonic wave interference Wi-Fi of LTE transmitting frequency range under Wi-Fi (Wireless Fidelity) Coexistence Situation.And
With the arrival in 5G (5th-Generation, the 5th third-generation mobile communication technology) epoch, harmonic wave interference situation can be more serious, than
When carrying out NR (New Radio) dual link such as 4G (4th-Generation, fourth generation mobile communication technology) and 5G, 4G signal hair
The harmonic wave for penetrating generation will be directly fallen in the reception band of 5G frequency range, to generate serious harmonic wave interference.
Radio frequency system generally comprises: RF transceiver, multi-frequency multi-mode power amplifier (MMPA), duplexer
(Duplexer), duplexer (Switch), low-noise amplifier (Low Noise Amplifier, LNA) and antenna,
It include low frequency (LB) power amplifier (PA, Power Amplifier) and high frequency (HB) power amplifier inside MMPA.Wherein,
The harmonic wave interference approach of radio frequency system routine is as follows:
The harmonic signal of the low frequency output dominant frequency of interference channel A:MMPA, the harmonic signal pass through the duplexer of low frequency channel
And duplexer, the receiving path of high frequency is then leaked into, to influence the reception of high frequency；
The low frequency of interference channel B:MMPA exports dominant frequency signal, which passes through duplexer, the antenna of low frequency channel
Switch, then leaks into the receiving path of high frequency, due to the non-linear generation IM of the LNA of the receiving path of high frequency
(intermodulation, intermodulation) product, IM product is just fallen in the reception frequency range of high frequency, to influence connecing for high frequency
It receives.
In the prior art it is generally necessary to which a variety of processing schemes just can effectively solve the harmonic wave interference of radio frequency system, such as low
The transmitting path of frequency increases low-pass filter, uses independent PA, increase duplexer for the low frequency band of output harmonic wave signal
In the methods of the low frequency band and the isolation of high-frequency band, these methods mainly solve harmonic wave from pure hardware point of view
Following drawback will be present in interference problem: radio-frequency devices cost will be increased by increasing independent low frequency radio frequency PA and low-pass filter, together
When to will lead to radio circuit excessively complicated, influence layout and radio frequency cloth plate suqare, and will also cause the portion of MMPA internal low-frequency
Divide function waste.
To sum up, there are radio circuit complexity for the harmonic wave interference processing scheme of the prior art, the problem of higher cost.
Summary of the invention
The present invention provides the processing method and mobile terminal of a kind of harmonic wave interference, at the harmonic wave interference to solve the prior art
The problem of reason scheme radio circuit is complicated, higher cost.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, the embodiment of the present invention provides a kind of processing method of harmonic wave interference, comprising:
Detect the work at present scene of the radio frequency system of mobile terminal；
When harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, control non-thread in radio frequency system
Property device work in linear zone, wherein when nonlinear device works in linear zone, the input signal of nonlinear device and output letter
Number linear correlation.
Second aspect, the embodiment of the present invention provide a kind of mobile terminal, comprising:
Detection module, the work at present scene of the radio frequency system for detecting mobile terminal；
Control module, when harmonic wave interference occurs for the work at present scene for the radio frequency system in mobile terminal, control is penetrated
Nonlinear device in display system works in linear zone, wherein when nonlinear device works in linear zone, nonlinear device it is defeated
It is linear related to output signal to enter signal.
The third aspect, the embodiment of the present invention provide a kind of mobile terminal, including processor, and memory is stored in memory
Computer program that is upper and can running on a processor, the computer program realize above-mentioned harmonic wave interference when being executed by processor
The step of processing method.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, on computer readable storage medium
It is stored with computer program, which realizes the processing method of above-mentioned harmonic wave interference when being executed by processor the step of.
In the embodiment of the present invention, the work at present scene of the radio frequency system by detecting mobile terminal；In mobile terminal
When harmonic wave interference occurs for the work at present scene of radio frequency system, the nonlinear device controlled in radio frequency system works in linear zone,
The linearity of nonlinear device working condition can be improved, to reduce harmonic wave interference, promote radio-frequency performance；Also, the present invention
Radio circuit is simple in embodiment, can save circuit design cost.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 shows one of flow diagrams of processing method of harmonic wave interference provided in an embodiment of the present invention；
Fig. 2 indicates the two of the flow diagram of the processing method of harmonic wave interference provided in an embodiment of the present invention；
Fig. 3 indicates the three of the flow diagram of the processing method of harmonic wave interference provided in an embodiment of the present invention；
Fig. 4 indicates the four of the flow diagram of the processing method of harmonic wave interference provided in an embodiment of the present invention；
Fig. 5 indicates the structural schematic diagram of radio frequency system provided in an embodiment of the present invention；
Fig. 6 indicates the structural schematic diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 7 indicates the hardware structural diagram of mobile terminal provided in an embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The generation of radio-frequency harmonic be as the nonlinear device in radio frequency system it is non-linear caused by, in radio frequency system
In normal work, with being gradually increased for its input signal, nonlinear device work will level off to saturation region to nonlinear device,
That is inelastic region, the harmonic wave interference of radio frequency system will increased dramatically at this time.The embodiment of the present invention provides a kind of place of harmonic wave interference
Reason method improves the linearity of nonlinear device working condition, energy by way of controlling nonlinear device and working in linear zone
Enough reduce harmonic wave interference, promotes radio-frequency performance.
Referring to Figure 1, the flow diagram of the processing method of harmonic wave interference provided in an embodiment of the present invention is shown
One of.The embodiment of the present invention provides a kind of processing method of harmonic wave interference, may comprise steps of:
Step 101, the work at present scene of the radio frequency system of mobile terminal is detected.
In this step, when mobile terminal is in real net work, the work at present scene of radio frequency system is detected, in order to true
It is fixed whether to open harmonic wave interference adjustment mechanism, to obtain optimal radio-frequency performance.
Step 102, when harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, radio frequency system is controlled
Interior nonlinear device works in linear zone.Wherein, when nonlinear device works in linear zone, the input signal of nonlinear device
It is linear related to output signal.
In this step, when harmonic wave interference occurs for the work at present scene of radio frequency system, by control radio frequency system
Nonlinear device works in linear zone, at this point, the input signal of nonlinear device is linear related to output signal, specifically,
The dominant frequency signal and the dominant frequency signal of output of nonlinear device input are linear related, the interference signal of input and the interference of output
Linear correlation also can be reduced harmonic wave interference so as to improve the linearity of nonlinear device working condition by signal, and promotion is penetrated
Frequency performance.
In the embodiment of the present invention, by way of controlling nonlinear device and working in linear zone, improve nonlinear device work
Make the linearity of state, harmonic wave interference can be reduced, promotes radio-frequency performance；Also, radio circuit is simple in the embodiment of the present invention,
Circuit design cost can be saved.
Specifically, in a preferred embodiment of the invention, step 102, mobile terminal radio frequency system it is current
When harmonic wave interference occurs for operative scenario, the step of nonlinear device in radio frequency system works in linear zone is controlled, may include:
To preset running parameter that step value increases nonlinear device to default running parameter, nonlinear device is controlled to obtain after increasing
Default running parameter work, so that nonlinear device is worked in linear zone.That is, in embodiments of the present invention, specifically may be used
To work in linear zone to control nonlinear device, improve nonlinear device work by the running parameter for adjusting nonlinear device
Make the linearity of state, to reduce harmonic wave interference, promotes radio-frequency performance.
Wherein, in the embodiment of the present invention, the running parameter of nonlinear device may include the operating voltage of nonlinear device
And/or the static working current of nonlinear device.That is, in embodiments of the present invention, it can be by improving non-linear device
The operating voltage of part works in linear zone to control nonlinear device, is presently in working condition so as to improve nonlinear device
The linearity；Alternatively, its static working current can also be optimized and revised, to control non-linear device by controlling nonlinear device
Part works in linear zone, and the linearity of working condition is presently in so as to improve nonlinear device；Alternatively, can also be by simultaneously
The operating voltage and static working current for adjusting nonlinear device, work in linear zone to control nonlinear device.
In addition, since the nonlinear device for the generation for leading to radio-frequency harmonic in radio frequency system mainly includes in transmitting path
Low-noise amplifier in power amplifier and receiving path, therefore, in the embodiment of the present invention, nonlinear device is transmitting path
In power amplifier and/or the low-noise amplifier in receiving path.
In addition, in a preferred embodiment of the invention, step 102, in the current work of the radio frequency system of mobile terminal
When making scene harmonic wave interference occurs, control nonlinear device the step of working in linear zone in radio frequency system, may include with
Lower step: it according to the work at present scene of the radio frequency system of mobile terminal and at least one preset harmonic wave interference scene, determines
Whether the radio frequency system of mobile terminal occurs harmonic wave interference；When harmonic wave interference occurs for the radio frequency system of mobile terminal, according to being done
The signal quality of channel is disturbed, the nonlinear device controlled in radio frequency system works in linear zone.In the embodiment of the present invention, by pre-
First at least one harmonic wave interference field of harmonic wave interference occurs for setting, then according to work at present scene and preset at least one is humorous
Whether wave interference scene can occur harmonic wave interference convenient for the work at present scene of detection radio frequency system, to simplify detection side
Formula improves detection efficiency；Then when determining that harmonic wave interference occurs for radio frequency system, according to the signal quality of disturbed channel, really
Fixed whether to open harmonic wave interference adjustment mechanism, control nonlinear device works in linear zone, to improve nonlinear device work shape
The linearity of state promotes radio-frequency performance to reduce harmonic wave interference.Wherein, the disturbed channel of harmonic wave interference scene can be
Corresponding record in preset harmonic wave interference scene, that is to say, that according to work at present scene and at least one preset harmonic wave
When interference scene determines that harmonic wave interference occurs for radio frequency system, the corresponding disturbed channel of work at present scene can be determined simultaneously.
In the embodiment of the present invention, which can be specific CA combine scenes, specific LTE
With WiFi coexistence scenario etc..For example, at least one harmonic wave interference scene may include: the downlink interband CA combination " B3A- of LTE
In B8A ", the received operative scenario of 1805-1830MHz of the 902.5-915MHz transmitting and B3 of B8；Here, B3 reception frequency range is
1805-1880MHz, B8 emit frequency range be 880-915MHz, when B8 work in 902.5-915MHz, second harmonic frequency
1805-1830MHz is just fallen in the reception band of B3, to influence the reception of B3.For another example at least one harmonic wave interference scene
It may include: the operative scenario of the 824-849MHz transmitting and the 2472-2483.5MHz of WiFi 2.4G of LTE B5；Wherein,
The working frequency of WiFi 2.4G is 2400-2483.5MHz, and it is 824-849MHz that LTE B5, which emits frequency range, when LTE B5 work exists
When 824-828MHz, third harmonic frequencies 2472-2484MHz, it will fall in WiFi 2.4G work belt, to influence
The work that WiFi 2.4G is arrived.
In addition, the signal quality of the disturbed channel can use SINR (Signal-Noise in the embodiment of the present invention
Ratio, signal-to-noise ratio) it indicates, the SINR=useful signal/(system noise+interference signal).
In addition, in step 102, occurring in the work at present scene of the radio frequency system of mobile terminal in the embodiment of the present invention
When harmonic wave interference, after controlling the step of nonlinear device in radio frequency system works in linear zone, the processing of the harmonic wave interference
Method can also include: to detect whether work at present scene occurs harmonic wave interference at interval of predetermined time interval, in work at present
When harmonic wave interference does not occur for scene, control nonlinear device is worked with parameter preset.Here, by interval of predetermined time interval
Whether detection work at present scene occurs harmonic wave interference, and when harmonic wave interference does not occur for work at present scene, it is dry to close harmonic wave
Adjustment mechanism is disturbed, and controls nonlinear device with the work of parameter preset determined by normal calibration process, which uses
In the running parameter of nonlinear device of the selection radio frequency system when RF index is optimal.In such manner, it is possible to reduce harmonic wave interference tune
Power consumption is saved in the inessential unlatching of section mechanism.
Fig. 2 is referred to, shows the flow diagram of the processing method of harmonic wave interference provided in an embodiment of the present invention
Two.In a preferred embodiment of the invention, the processing method of the harmonic wave interference may comprise steps of:
Step 201, the work at present scene of the radio frequency system of mobile terminal is detected.
In this step, when mobile terminal is in real net work, the work at present scene of radio frequency system is detected, in order to true
It is fixed whether to open harmonic wave interference adjustment mechanism, to obtain optimal radio-frequency performance.
Step 202, according to the work at present scene of the radio frequency system of mobile terminal and at least one preset harmonic wave interference
Scene, determines whether the radio frequency system of mobile terminal occurs harmonic wave interference.
In this step, at least one harmonic wave interference field of harmonic wave interference occurs, by presetting in order to detect radio frequency
Whether the work at present scene of system occurs harmonic wave interference, to simplify detection mode, improves detection efficiency.
Specifically, in a preferred embodiment of the invention, step 202, according to the current of the radio frequency system of mobile terminal
Operative scenario and at least one preset harmonic wave interference scene, determine whether the radio frequency system of mobile terminal occurs harmonic wave interference
Step, if may include: at least one preset harmonic wave interference scene, find match with work at present scene it is humorous
Wave interference scene determines that harmonic wave interference occurs for the radio frequency system of mobile terminal under work at present scene.Here, by preset
Search whether there is the harmonic wave interference scene to match with work at present scene at least one harmonic wave interference scene, wherein can
To correspond in table at least one harmonic wave interference scene setting in a harmonic wave interference scene, by searching for the harmonic wave interference scene pair
Answer table, the harmonic wave interference scene that matching matches with work at present scene, to determine whether the radio frequency system occurs harmonic wave interference；
When finding the harmonic wave interference scene to match with work at present scene, determine that harmonic wave interference occurs for radio frequency system.
Step 203, when harmonic wave interference occurs for the radio frequency system of mobile terminal, according to the signal quality of disturbed channel,
Nonlinear device in control radio frequency system works in linear zone.Wherein, when nonlinear device works in linear zone, non-linear device
The input signal of part is linear related to output signal.
In this step, when determining that harmonic wave interference occurs for radio frequency system, according to the signal quality of disturbed channel, determination is
No unlatching harmonic wave interference adjustment mechanism, control nonlinear device works in linear zone, to improve nonlinear device working condition
The linearity promotes radio-frequency performance, also, can also reduce the inessential of harmonic wave interference adjustment mechanism to reduce harmonic wave interference
It opens, saves power consumption, extend the stand-by time of mobile terminal.
Preferably, in the embodiment of the present invention, step 203, when harmonic wave interference occurs for the radio frequency system of mobile terminal, according to quilt
The signal quality of interference channel controls the step of nonlinear device in radio frequency system works in linear zone, may include following
Step: when harmonic wave interference occurs for the radio frequency system of mobile terminal, the first signal that channel is disturbed in work at present scene is detected
Quality；If the first signal quality is not up to preset condition, the nonlinear device controlled in radio frequency system works in linear zone.This
In, it is previously provided with for determining whether the signal quality of disturbed channel meets the preset condition that demodulation requires, is moved determining
When harmonic wave interference occurs for the radio frequency system of dynamic terminal, by the first signal for being disturbed channel in the work at present scene that detects
Quality, if reach preset condition, to determine whether to open harmonic wave interference adjustment mechanism, control nonlinear device is worked in linearly
Area reduces harmonic wave interference so as to more precisely improve the linearity of nonlinear device working condition, promotes radio frequency
Can, and the inessential unlatching of harmonic wave interference adjustment mechanism can be reduced, save power consumption.
Wherein it is possible to work in linear zone by the running parameter for adjusting nonlinear device to control nonlinear device, change
The linearity of kind nonlinear device working condition promotes radio-frequency performance to reduce harmonic wave interference.Specifically, if the first signal
Quality is not up to preset condition, controls the step of nonlinear device in radio frequency system works in linear zone, may include: with pre-
If step value increases the running parameter of nonlinear device, and the first work ginseng when obtaining interference signal minimum in preset time
Number；Control nonlinear device is worked with the first running parameter.In the embodiment of the present invention, if not up to default in the first signal quality
When condition, to preset step value as the running parameter of stepping increase nonlinear device, while nonlinear device is detected in corresponding work
Then interference signal when making to work under parameter obtains the first running parameter when interference signal minimum in the predetermined time, at this point,
Control nonlinear device is worked with the first running parameter；In such manner, it is possible to more precisely improve nonlinear device working condition
The linearity reduces harmonic wave interference, promotes radio-frequency performance.Wherein, the running parameter of nonlinear device may include nonlinear device
Operating voltage and/or nonlinear device static working current.In addition, in the embodiment of the present invention, the letter of the disturbed channel
Number quality can indicate using SINR, the SINR=useful signal/(system noise+interference signal).
In addition, after step 203, the processing method of the harmonic wave interference can also include: at interval of predetermined time interval,
According to work at present scene and at least one preset harmonic wave interference scene, it is humorous to determine whether the radio frequency system of mobile terminal occurs
Wave interference, and when harmonic wave interference does not occur for work at present scene, control nonlinear device is worked with parameter preset.In this way can
When harmonic wave interference does not occur for work at present scene, harmonic wave interference adjustment mechanism is closed, and control nonlinear device with normal
The work of parameter preset determined by calibration process, the calibration process is for selecting radio frequency system non-thread when RF index is optimal
Property device running parameter save power consumption so as to reduce the inessential unlatching of harmonic wave interference adjustment mechanism.
It can be set out based on different harmonic wave interference approach in the embodiment of the present invention, by controlling corresponding nonlinear device
Linear zone is worked in reduce harmonic wave interference, promotes radio-frequency performance.
Specifically, in an embodiment of the invention, the reception of high frequency is fallen on for the harmonic signal of low frequency output dominant frequency
Access causes the harmonic wave interference scene of harmonic wave interference, which can be the power amplifier in transmitting path.It please join
See Fig. 3, the three of the flow diagram of the processing method of the harmonic wave interference provided in an embodiment of the present invention shown, the present invention is implemented
The processing method for the harmonic wave interference that example provides, may comprise steps of:
Step 301, the work at present scene of the radio frequency system of mobile terminal is detected.
In this step, when mobile terminal is in real net work, the work at present scene of radio frequency system is detected, in order to true
It is fixed whether to open harmonic wave interference adjustment mechanism, to obtain optimal radio-frequency performance.
Step 302, it if at least one preset harmonic wave interference scene, finds and matches with work at present scene
Harmonic wave interference scene determines that harmonic wave interference occurs for the radio frequency system of mobile terminal under work at present scene.
In this step, at least one harmonic wave interference scene setting can be corresponded in table in a harmonic wave interference scene, be passed through
It searches the harmonic wave interference scene and corresponds to table, the harmonic wave interference scene that matching matches with work at present scene, if finding and working as
The harmonic wave interference scene that preceding operative scenario matches determines that harmonic wave interference occurs for radio frequency system, and executes step 303；Otherwise, then
Power amplifier in the radio frequency operation state modulator transmitting path of the transmitting path based on determined by normal calibration process into
Row work, the calibration process are used for the first parameter preset when selecting transmitting path RF index optimal, i.e. PA running parameter (packet
Include the parameters such as PA supply voltage and PA static working current), which includes ACLR (Adjacent Channel
Leakage Ratio, adjacent channel leakage ratio) and the parameters such as power consumption.
Step 303, it when harmonic wave interference occurs for the radio frequency system of mobile terminal, detects and is disturbed channel in work at present scene
The first signal quality；If the first signal quality is not up to preset condition, the power in the transmitting path in radio frequency system is controlled
Amplifier operation is in linear zone.
Here, it is previously provided with for determining whether the signal quality of disturbed channel meets the default item that demodulation requires
Part.In this step, when harmonic wave interference occurs for the radio frequency system for determining mobile terminal, by the work at present scene that detects
First signal quality of disturbed channel, if reach preset condition, to determine whether to open harmonic wave interference adjustment mechanism, if the
One signal quality is not up to preset condition, then opens harmonic wave interference adjustment mechanism, and control power amplifier works in linear zone, if
First signal quality reaches preset condition, then controls the first parameter preset work that power amplifier is calibrated with normal calibration procedure
Make；In such manner, it is possible to more precisely improve the linearity of power amplifier working condition, the amplitude of harmonic signal is reduced, is reduced
Harmonic wave interference promotes radio-frequency performance, and can reduce the inessential unlatching of harmonic wave interference adjustment mechanism, saves power consumption.
Specifically, as shown in figure 5, radio frequency system may include: RF transceiver 510, multi-frequency multi-mode power amplifier
520, duplexer 530, duplexer 540, directional coupler 550, low-noise amplifier 560 and antenna 570, multi-frequency multi-mode function
Inside rate amplifier 520 include multiple power amplifiers, formed between duplexer 540 respectively at least one low frequency channel and
At least one high frequency channel is formed with power detection access between directional coupler 550 and RF transceiver 510；Radio-frequency receiving-transmitting
Device 510 and multi-frequency multi-mode power amplifier 520 are connect with central processing unit respectively, power management module respectively with central processing unit
It is connected with multi-frequency multi-mode power amplifier 520；In the embodiment of the present invention, can by central processing unit to power management module into
The control of row power supply, makes power management module increase power amplifier (function referred herein with Δ V (the first default step value) for stepping
Rate amplifier be multi-frequency multi-mode power amplifier 520 inside currently processed working condition power amplifier) operating voltage,
It is denoted as Vi；And PA control is carried out to power amplifier by central processing unit 630, in ViOperating voltage under, with Δ ICQ (second
Default step value) be step by step modulating power amplifier quiescent point, increase the static working current of power amplifier, be denoted as
ICQk；Then harmonic signal (interference when power amplifier works under corresponding running parameter is detected by power detection access
Signal) size, the first running parameter when choosing and recording harmonic signal minimum in the predetermined time is denoted as (Vi, ICQk)；Control
Power amplifier processed is with the first running parameter (Vi, ICQk) work.Furthermore it is possible in control power amplifier with the first work ginseng
Number (Vi, ICQk) before work, determine whether the first running parameter meets power amplifier and work in linear zone, specifically, pre-
Interior detection power amplifier fix time with the first running parameter (Vi, ICQk) when disturbed channel SINR, if SINK reaches pre-
If condition, power amplifier is controlled with the first running parameter (Vi, ICQk) work, otherwise, then return is further corresponding increases power
The operating voltage and static working current of amplifier.In addition, if when the operating voltage of power amplifier reaches maximum working voltage,
Power amplifier is then controlled to work with maximum working voltage.
In addition, after step 303, the processing method of the harmonic wave interference can also include: at interval of predetermined time interval,
According to work at present scene and at least one preset harmonic wave interference scene, it is humorous to determine whether the radio frequency system of mobile terminal occurs
Wave interference, and when harmonic wave interference does not occur for work at present scene, control power amplifier is worked with the first parameter preset.In this way
Harmonic wave interference adjustment mechanism can be closed, and control power amplifier with just when harmonic wave interference does not occur for work at present scene
The work of first parameter preset determined by normal calibration process, is opened so as to reduce the inessential of harmonic wave interference adjustment mechanism
It opens, saves power consumption.
For the non-linear generation IM product of the low-noise amplifier of the receiving path of high frequency, IM product just falls in height
Harmonic wave interference scene in the reception frequency range of frequency, the nonlinear device can be the low-noise amplifier in receiving path.It please join
See Fig. 4, the four of the flow diagram of the processing method of the harmonic wave interference provided in an embodiment of the present invention shown, the present invention is implemented
The processing method for the harmonic wave interference that example provides, may comprise steps of:
Step 401, the work at present scene of the radio frequency system of mobile terminal is detected.
In this step, when mobile terminal is in real net work, the work at present scene of radio frequency system is detected, in order to true
It is fixed whether to open harmonic wave interference adjustment mechanism, to obtain optimal radio-frequency performance.
Step 402, it if at least one preset harmonic wave interference scene, finds and matches with work at present scene
Harmonic wave interference scene determines that harmonic wave interference occurs for the radio frequency system of mobile terminal under work at present scene.
In this step, at least one harmonic wave interference scene setting can be corresponded in table in a harmonic wave interference scene, be passed through
It searches the harmonic wave interference scene and corresponds to table, the harmonic wave interference scene that matching matches with work at present scene, if finding and working as
The harmonic wave interference scene that preceding operative scenario matches determines that harmonic wave interference occurs for radio frequency system, and executes step 403；Otherwise, then
Low-noise amplifier in the radio frequency operation state modulator receiving path of the receiving path based on determined by normal calibration process
It works, which is used to select to normally receive the second parameter preset of access, i.e., LNA running parameter (including works
The parameters such as voltage and static working current).
Step 403, it when harmonic wave interference occurs for the radio frequency system of mobile terminal, detects and is disturbed channel in work at present scene
The first signal quality；If the first signal quality is not up to preset condition, the low noise in the receiving path in radio frequency system is controlled
Acoustic amplifier works in linear zone.
Here, it is previously provided with for determining whether the signal quality of disturbed channel meets the default item that demodulation requires
Part.In this step, when harmonic wave interference occurs for the radio frequency system for determining mobile terminal, by the work at present scene that detects
First signal quality of disturbed channel, if reach preset condition, to determine whether to open harmonic wave interference adjustment mechanism, if the
One signal quality is not up to preset condition, then opens harmonic wave interference adjustment mechanism, and control low-noise amplifier works in linear zone,
If the first signal quality reaches preset condition, the second parameter preset that low-noise amplifier is calibrated with normal calibration procedure is controlled
Work；In such manner, it is possible to more precisely improve the linearity of low-noise amplifier working condition, the amplitude of IM product is reduced, is subtracted
Small harmonic wave interference promotes radio-frequency performance, and can reduce the inessential unlatching of harmonic wave interference adjustment mechanism, saves power consumption.
Specifically, can be that stepping increases low noise amplification with Δ V ' (the first default step value) in the embodiment of the present invention
The operating voltage of device, is denoted as Vi'；And in Vi' operating voltage under, with Δ ICQ ' (the second default step value) be step by step modulating it is low
The quiescent point of noise amplifier increases the static working current of low-noise amplifier, is denoted as ICQk'；Then pass through power
Detection path detects the size of interference signal when low-noise amplifier works under corresponding running parameter, chooses and records predetermined
The first running parameter in time when interference signal minimum, is denoted as (Vi', ICQk')；Low-noise amplifier is controlled with the first work
Parameter (Vi', ICQk') work.Furthermore it is possible in control low-noise amplifier with the first running parameter (Vi', ICQk') work it
Before, determine whether the first running parameter meets low-noise amplifier and work in linear zone, specifically, then detecting low noise amplification
Device is with the first running parameter (Vi', ICQk') when the SINR of disturbed channel control low noise if SINK reaches preset condition
Acoustic amplifier is with the first running parameter (Vi', ICQk') work, otherwise, then return, which further corresponds to, increases low-noise amplifier
Operating voltage and static working current.In addition, if being controlled when the operating voltage of low-noise amplifier reaches maximum working voltage
Low-noise amplifier is worked with maximum working voltage.
In addition, after step 403, the processing method of the harmonic wave interference can also include: at interval of predetermined time interval,
According to work at present scene and at least one preset harmonic wave interference scene, it is humorous to determine whether the radio frequency system of mobile terminal occurs
Wave interference, and when harmonic wave interference does not occur for work at present scene, control low-noise amplifier is worked with the second parameter preset.This
Sample can close harmonic wave interference adjustment mechanism, and control low-noise amplifier when harmonic wave interference does not occur for work at present scene
It is worked with the second parameter preset determined by normal calibration process, so as to reduce the inessential of harmonic wave interference adjustment mechanism
It opens, saves power consumption.
The processing method of harmonic wave interference provided in an embodiment of the present invention, by detect mobile terminal radio frequency system it is current
Operative scenario；When harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, control non-in radio frequency system
Linear unit works in linear zone, can improve the linearity of nonlinear device working condition, to reduce harmonic wave interference, is promoted
Radio-frequency performance；Also, radio circuit is simple in the embodiment of the present invention, can save circuit design cost.
Based on the above method, the embodiment of the present invention provides a kind of mobile terminal to realize the above method.
Fig. 6 is referred to, shows the structural schematic diagram of mobile terminal provided in an embodiment of the present invention.The present invention is implemented
Example provides a kind of mobile terminal 600, may include: detection module 610 and control module 620.
Detection module 610, the work at present scene of the radio frequency system for detecting mobile terminal；
Control module 620, when harmonic wave interference occurs for the work at present scene for the radio frequency system in mobile terminal, control
Nonlinear device in radio frequency system works in linear zone, wherein when nonlinear device works in linear zone, nonlinear device
Input signal is linear related to output signal.
In a preferred embodiment of the invention, control module 620 may include: determining submodule and the first control
Module.
Submodule is determined, for according to the work at present scene of the radio frequency system of mobile terminal and preset at least one is humorous
Wave interference scene, determines whether the radio frequency system of mobile terminal occurs harmonic wave interference；
First control submodule, when harmonic wave interference occurs for the radio frequency system for mobile terminal, according to disturbed channel
Signal quality, the nonlinear device controlled in radio frequency system work in linear zone.
Preferably, determine that submodule may include: determination unit.
Determination unit, if for finding and work at present scene phase at least one preset harmonic wave interference scene
Matched harmonic wave interference scene determines that harmonic wave interference occurs for the radio frequency system of mobile terminal under work at present scene.
Preferably, the first control submodule may include: detection unit and control unit.
Detection unit is detected and is done in work at present scene when harmonic wave interference occurs for the radio frequency system for mobile terminal
Disturb the first signal quality of channel；
Control unit controls the nonlinear device in radio frequency system if being not up to preset condition for the first signal quality
Work in linear zone.
Further, control unit may include: processing subelement and control subelement.
Subelement is handled, for increasing the running parameter of nonlinear device to preset step value, and is obtained in preset time
The first running parameter when interference signal minimum；
Subelement is controlled, is worked for controlling nonlinear device with the first running parameter.
In a preferred embodiment of the invention, nonlinear device can be the power amplifier PA in transmitting path
And/or the low-noise amplifier LNA in receiving path.
Mobile terminal provided in an embodiment of the present invention can be realized mobile terminal in the embodiment of the method for Fig. 1 to Fig. 4 and realize
Each process, to avoid repeating, which is not described herein again.
Mobile terminal provided in an embodiment of the present invention, the work at present scene of the radio frequency system by detecting mobile terminal；
When harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, the nonlinear device work in radio frequency system is controlled
Make in linear zone, the linearity of nonlinear device working condition can be improved, to reduce harmonic wave interference, promotes radio-frequency performance；
Also, radio circuit is simple in the embodiment of the present invention, can save circuit design cost.
A kind of hardware structural diagram of Fig. 7 mobile terminal of each embodiment to realize the present invention.
The mobile terminal 700 includes but is not limited to: radio frequency unit 701, network module 702, audio output unit 703, defeated
Enter unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, processor
The components such as 710 and power supply 711.It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 7 is not constituted
Restriction to mobile terminal, mobile terminal may include than illustrating more or fewer components, perhaps combine certain components or
Different component layouts.In embodiments of the present invention, mobile terminal include but is not limited to mobile phone, tablet computer, laptop,
Palm PC, car-mounted terminal, wearable device and pedometer etc..
Wherein, processor 710, the work at present scene of the radio frequency system for detecting mobile terminal；In mobile terminal
When harmonic wave interference occurs for the work at present scene of radio frequency system, the nonlinear device controlled in radio frequency system works in linear zone,
Wherein, when nonlinear device works in linear zone, the input signal of nonlinear device is linear related to output signal.
In embodiments of the present invention, pass through the work at present scene of the radio frequency system of detection mobile terminal；In mobile terminal
Radio frequency system work at present scene occur harmonic wave interference when, control radio frequency system in nonlinear device work in linearly
Area, can improve the linearity of nonlinear device working condition, to reduce harmonic wave interference, promote radio-frequency performance；Also, this hair
Radio circuit is simple in bright embodiment, can save circuit design cost.
It should be understood that the embodiment of the present invention in, radio frequency unit 701 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 710 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 701 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 701 can also by wireless communication system and network and other set
Standby communication.
Mobile terminal provides wireless broadband internet by network module 702 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 703 can be received by radio frequency unit 701 or network module 702 or in memory 709
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 703 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 700 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 703 includes loudspeaker, buzzer and receiver etc..
Input unit 704 is for receiving audio or video signal.Input unit 704 may include graphics processor
(Graphics Processing Unit, GPU) 7041 and microphone 7042, graphics processor 7041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 706.Through graphics processor 7041, treated that picture frame can be deposited
Storage is sent in memory 709 (or other storage mediums) or via radio frequency unit 701 or network module 702.Mike
Wind 7042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The format output that mobile communication base station can be sent to via radio frequency unit 701 is converted in the case where telephone calling model.
Mobile terminal 700 further includes at least one sensor 705, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 7061, and proximity sensor can close when mobile terminal 700 is moved in one's ear
Display panel 7061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 705 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared sensor etc. are spent, details are not described herein.
Display unit 706 is for showing information input by user or being supplied to the information of user.Display unit 706 can wrap
Display panel 7061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 7061.
User input unit 707 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family setting and the related key signals input of function control.Specifically, user input unit 707 include touch panel 7071 and
Other input equipments 7072.Touch panel 7071, also referred to as touch screen collect the touch operation of user on it or nearby
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 7071 or in touch panel 7071
Neighbouring operation).Touch panel 7071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects touch operation bring signal, transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 710, receiving area
It manages the order that device 710 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Seed type realizes touch panel 7071.In addition to touch panel 7071, user input unit 707 can also include other input equipments
7072.Specifically, other input equipments 7072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 7071 can be covered on display panel 7061, when touch panel 7071 is detected at it
On or near touch operation after, send processor 710 to determine the type of touch event, be followed by subsequent processing device 710 according to touching
The type for touching event provides corresponding visual output on display panel 7061.Although in Fig. 7, touch panel 7071 and display
Panel 7061 is the function that outputs and inputs of realizing mobile terminal as two independent components, but in some embodiments
In, can be integrated by touch panel 7071 and display panel 7061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place is without limitation.
Interface unit 708 is the interface that external device (ED) is connect with mobile terminal 700.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 708 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
By one or more elements that the input received is transferred in mobile terminal 700 or can be used in 700 He of mobile terminal
Data are transmitted between external device (ED).
Memory 709 can be used for storing software program and various data.Memory 709 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 709 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 710 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 709, and calls and is stored in storage
Data in device 709 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Managing device 710 may include one or more processing units；Preferably, processor 710 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 710.
Mobile terminal 700 can also include the power supply 711 (such as battery) powered to all parts, it is preferred that power supply 711
Can be logically contiguous by power-supply management system and processor 710, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 700 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 710, and memory 709 is stored in
It is real when which is executed by processor 710 on memory 709 and the computer program that can run on the processor 710
Each process of the processing method embodiment of existing above-mentioned harmonic wave interference, and identical technical effect can be reached, to avoid repeating, this
In repeat no more.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each mistake of the processing method embodiment of above-mentioned harmonic wave interference when being executed by processor
Journey, and identical technical effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer-readable storage medium
Matter, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (11)
1. a kind of processing method of harmonic wave interference characterized by comprising
Detect the work at present scene of the radio frequency system of mobile terminal；
When harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, control non-thread in the radio frequency system
Property device works in linear zone, wherein when the nonlinear device works in linear zone, the input signal of the nonlinear device
It is linear related to output signal；
When harmonic wave interference occurs for the work at present scene of the radio frequency system of mobile terminal, control non-thread in the radio frequency system
The step of property device works in linear zone, comprising:
According to the work at present scene of the radio frequency system of mobile terminal and at least one preset harmonic wave interference scene, determine described in
Whether the radio frequency system of mobile terminal occurs harmonic wave interference；
When harmonic wave interference occurs for the radio frequency system of mobile terminal, according to the signal quality of disturbed channel, the radio frequency system is controlled
Nonlinear device in system works in linear zone.
2. processing method according to claim 1, which is characterized in that the radio frequency system according to mobile terminal it is current
Operative scenario and at least one preset harmonic wave interference scene determine that harmonic wave interference occurs for the radio frequency system of the mobile terminal
Step, comprising:
If finding the harmonic wave interference to match with the work at present scene at least one preset harmonic wave interference scene
Scene determines that harmonic wave interference occurs for the radio frequency system of the mobile terminal under work at present scene.
3. processing method according to claim 1, which is characterized in that it is dry that harmonic wave occurs for the radio frequency system of the mobile terminal
When disturbing, according to the signal quality of disturbed channel, the step that the nonlinear device in the radio frequency system works in linear zone is controlled
Suddenly, comprising:
When harmonic wave interference occurs for the radio frequency system of mobile terminal, the first letter that channel is disturbed in the work at present scene is detected
Number quality；
If first signal quality is not up to preset condition, controls the nonlinear device in the radio frequency system and work in linearly
Area.
4. processing method according to claim 3, which is characterized in that if the not up to default item of first signal quality
Part controls the step of nonlinear device in the radio frequency system works in linear zone, comprising:
When increasing the running parameter of the nonlinear device with default step value, and obtaining interference signal minimum in preset time
First running parameter；
The nonlinear device is controlled to work with first running parameter.
5. processing method according to claim 1, which is characterized in that the nonlinear device is the power in transmitting path
Low-noise amplifier LNA in amplifier PA and/or receiving path.
6. a kind of mobile terminal characterized by comprising
Detection module, the work at present scene of the radio frequency system for detecting mobile terminal；
Control module when harmonic wave interference occurs for the work at present scene for the radio frequency system in mobile terminal, is penetrated described in control
Nonlinear device in display system works in linear zone, wherein when nonlinear device works in linear zone, nonlinear device it is defeated
It is linear related to output signal to enter signal；
The control module includes:
Submodule is determined, for dry according to the work at present scene of the radio frequency system of mobile terminal and at least one preset harmonic wave
Scene is disturbed, determines whether the radio frequency system of the mobile terminal occurs harmonic wave interference；
First control submodule, when harmonic wave interference occurs for the radio frequency system for mobile terminal, according to the signal of disturbed channel
Quality, the nonlinear device controlled in the radio frequency system work in linear zone.
7. mobile terminal according to claim 6, which is characterized in that the determining submodule includes:
Determination unit, if for finding and the work at present scene phase at least one preset harmonic wave interference scene
Matched harmonic wave interference scene determines that harmonic wave interference occurs for the radio frequency system of the mobile terminal under work at present scene.
8. mobile terminal according to claim 6, which is characterized in that first control submodule includes:
Detection unit is detected and is done in the work at present scene when harmonic wave interference occurs for the radio frequency system for mobile terminal
Disturb the first signal quality of channel；
Control unit controls non-linear in the radio frequency system if being not up to preset condition for first signal quality
Device works in linear zone.
9. mobile terminal according to claim 8, which is characterized in that described control unit includes:
Subelement is handled, for increasing the running parameter of the nonlinear device with default step value, and is obtained in preset time
The first running parameter when interference signal minimum；
Subelement is controlled, is worked for controlling the nonlinear device with first running parameter.
10. mobile terminal according to claim 6, which is characterized in that the nonlinear device is the function in transmitting path
Low-noise amplifier LNA in rate amplifier PA and/or receiving path.
11. a kind of mobile terminal, which is characterized in that including processor, memory and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is executed by the processor
Any one of described in harmonic wave interference processing method the step of.
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| CN110740463A (en) * | 2018-07-19 | 2020-01-31 | 中兴通讯股份有限公司 | method and device for reducing signal interference |
| CN109639313A (en) * | 2018-12-18 | 2019-04-16 | 维沃移动通信有限公司 | A kind of communication control method, system and circuit |
| CN109889216B (en) * | 2019-03-25 | 2021-04-02 | Oppo广东移动通信有限公司 | Radio frequency front-end device and terminal |
| CN110366275A (en) * | 2019-07-22 | 2019-10-22 | 维沃移动通信有限公司 | A kind of method and terminal reducing multiple network mutual interference |
| CN110636530B (en) * | 2019-10-28 | 2023-04-07 | 维沃移动通信有限公司 | Method for processing adjacent channel interference and terminal equipment |
| CN114696930A (en) * | 2020-12-28 | 2022-07-01 | 中兴通讯股份有限公司 | Anti-interference method and device for DSS, electronic equipment and storage medium |
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