CN107017917A - A kind of power amplifier method and apparatus of the frequency automatic identifications of TD LTE tri- - Google Patents
A kind of power amplifier method and apparatus of the frequency automatic identifications of TD LTE tri- Download PDFInfo
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- CN107017917A CN107017917A CN201710393372.9A CN201710393372A CN107017917A CN 107017917 A CN107017917 A CN 107017917A CN 201710393372 A CN201710393372 A CN 201710393372A CN 107017917 A CN107017917 A CN 107017917A
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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
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
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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
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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Abstract
The invention discloses a kind of power amplifier method and apparatus of the frequency automatic identifications of TD LTE tri-, methods described selects from radiofrequency signal one to need to carry out the target frequency bands signal of power amplifier processing by input signal selection circuit, and the power supply of power control management circuit holding power amplifier corresponding with target frequency bands signal is controlled by monitoring unit, the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal is disconnected, so that power consumption when effectively reducing device work.Meanwhile, the power amplifier progress to three frequency ranges is integrated, only need to set a rf receiver unit and transmitting element, it is possible to realizes to the automatic reception of three frequencies, identification, send, effectively increases the integrated level and the cost by right equipment of equipment.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of power amplifier method and apparatus of the frequency automatic identifications of TD-LTE tri-.
Background technology
4G is to integrate 3G and WLAN, and can quickly transmit data, high-quality, audio, video and image etc..4G energy
The enough speed with more than 100Mbps is downloaded, and than fast 25 times current of family expenses broadband A/D SL (4,000,000), and disclosure satisfy that nearly all
Requirement of the user for wireless service.
Existing 4G frequency ranges are more, and RF power amplification unit is right by only supporting the enhanced processing of the radiofrequency signal of a certain frequency range
In different frequency range radiofrequency signal, it is necessary to set different Receiver Modules, transmitter module carry out signal sending and receiving.For example,
For operator of China Mobile, the radiofrequency signal (Band38, Band39, Band40) of three frequency ranges in TD-LTE standards,
Receiving module, the transmitter module of 3 radiofrequency signals of setting are needed altogether.This will cause being significantly increased for hardware cost, waste
Sizable resource.
The content of the invention
For this reason, it may be necessary to a kind of technical scheme of the power amplifier of the frequency automatic identifications of TD-LTE tri- be provided, to solve current TD-
LTE radio power amplifier unit is due to for each frequency range radiofrequency signal, being respectively provided with independent Receiver Module and transmitter module, leading
The problems such as causing hardware cost increase, waste of resource.
To achieve the above object, a kind of power amplification device of the frequency automatic identifications of TD-LTE tri-, described device are inventor provided
Including alc circuit, input signal selection circuit, monitoring unit, power control management circuit, power amplifier, power supply；The power amplifier
Circuit includes ANT_Band38 power amplifiers, ANT_Band39 power amplifiers and ANT_Band40 power amplifiers, the alc circuit
It is all connected with power amplifier, input signal selection circuit；The monitoring unit is managed with input signal selection circuit, power supply
Circuit is all connected with, and the power control management circuit is connected with the power supply；
The alc circuit is used to receive downlink radio-frequency signal, and the downlink radio-frequency signal received is transmitted to input letter
Number selection circuit and the power amplifier；
The input signal selection circuit is used for basis and target frequency bands signal is filtered out from received radiofrequency signal, and will
Filter out target frequency bands signal to transmit to monitoring unit, the target frequency bands signal includes ANT_Band38 signals or ANT_
Band39 signals or ANT_Band40 signals；
The monitoring unit is used for according to target frequency bands signal, and control power control management circuit keeps believing with target frequency bands
The power supply of number corresponding power amplifier, and disconnect the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal；
The corresponding power amplifier of the target frequency bands signal is used to carry out at power amplifier target frequency bands signal in radiofrequency signal
Manage and export the target frequency bands signal.
Further, shown device also includes up low noise amplifier circuit and combiner, the up low noise amplification
Circuit is connected with the power amplifier, and the up low noise amplifier circuit is connected with the combiner, the up low noise
Amplifying circuit is used to receive upward signal, and carries out low noise amplification processing to the target frequency bands signal in upward signal；It is described
Combiner is used for the target frequency bands signal after low noise amplification is handled and is combined with non-targeted band channels in upward signal
And export.
Further, described device also includes circuit for checking input signals and ouput power detection circuit, the input letter
Number detection circuit be connected with input signal selection circuit, the ouput power detection circuit is connected with the power amplifier；
The circuit for checking input signals is used to detecting the level values of current goal frequency band signals, and by the level value of detection
Send to monitoring unit；
The ouput power detection circuit is used for the power output for detecting the target frequency bands signal after power amplifier processing, and by institute
The output power value of detection feeds back to monitoring unit.
Further, described device also include simulated pre-distortion circuit, alc circuit be connected with power amplifier including：ALC electricity
Road is connected with simulated pre-distortion circuit, and simulated pre-distortion circuit is connected with power amplifier；
The simulated pre-distortion circuit is used to carry out pre-distortion to radiofrequency signal, and by the radio frequency after pre-distortion
Signal is transmitted to power amplifier.
Further, the monitoring unit is used to switch over target frequency bands signal pair in control power control management circuit
During the power supply for the power amplifier answered, reset processing is carried out to simulated pre-distortion circuit.
Inventor additionally provides the power amplifier method of the frequency automatic identifications of TD-LTE tri-, and methods described is applied to the frequencies of TD-LTE tri- certainly
The power amplification device of dynamic identification, described device includes alc circuit, input signal selection circuit, monitoring unit, power supply management electricity
Road, power amplifier, power supply；The power amplifier includes ANT_Band38 power amplifiers, ANT_Band39 power amplifiers and ANT_
Band40 power amplifiers, the alc circuit is all connected with power amplifier, input signal selection circuit；The monitoring unit with it is defeated
Enter signal selecting circuit, power control management circuit to be all connected with, the power control management circuit is connected with the power supply；It is described
Method includes：
Alc circuit receives downlink radio-frequency signal, and the downlink radio-frequency signal received is transmitted to input signal selection electricity
Road and the power amplifier；
Input signal selection circuit will filter out mesh according to filtering out target frequency bands signal from received radiofrequency signal
Mark frequency band signals are transmitted to monitoring unit, the target frequency bands signal include ANT_Band38 signals or ANT_Band39 signals or
ANT_Band40 signals；
Monitoring unit keeps corresponding with target frequency bands signal according to target frequency bands signal, control power control management circuit
The power supply of power amplifier, and disconnect the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal；
The corresponding power amplifier of target frequency bands signal carries out power amplifier processing to target frequency bands signal in radiofrequency signal and exported
The target frequency bands signal.
Further, shown device also includes up low noise amplifier circuit and combiner, the up low noise amplification
Circuit is connected with the power amplifier, and the up low noise amplifier circuit is connected with the combiner；Methods described includes：
Up low noise amplifier circuit receives upward signal, and carries out low noise to the target frequency bands signal in upward signal
Enhanced processing；
Target frequency bands signal after combiner handles low noise amplification is carried out with non-targeted band channels in upward signal
Combining is simultaneously exported.
Further, described device also includes circuit for checking input signals and ouput power detection circuit, the input letter
Number detection circuit be connected with input signal selection circuit, the ouput power detection circuit is connected with the power amplifier；It is described
Method includes：
Circuit for checking input signals detects the level value of current goal frequency band signals, and the level value of detection is sent to prison
Control unit；
The power output of target frequency bands signal after ouput power detection circuit detection power amplifier processing, and it is defeated by what is detected
Go out performance number and feed back to monitoring unit.
Further, described device also include simulated pre-distortion circuit, alc circuit be connected with power amplifier including：ALC electricity
Road is connected with simulated pre-distortion circuit, and simulated pre-distortion circuit is connected with power amplifier；Methods described includes：
Simulated pre-distortion circuit carries out pre-distortion to radiofrequency signal, and by the radio signal transmission after pre-distortion
To power amplifier.
Further, methods described includes：
Monitoring unit switches over the electricity of the corresponding power amplifier of target frequency bands signal in control power control management circuit
During source, reset processing is carried out to simulated pre-distortion circuit.
The present invention has advantages below：One is selected from radiofrequency signal by input signal selection circuit needs to carry out power amplifier
The target frequency bands signal of processing, and control power control management circuit to keep corresponding with target frequency bands signal by monitoring unit
The power supply of power amplifier, disconnects the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal, so as to effectively reduce
Power consumption during device work.Meanwhile, the power amplifier progress to three frequency ranges is integrated, only need to set a rf receiver unit
And transmitting element, it is possible to realize it is automatic to three frequencies receive, identification, send, effectively increase equipment integrated level and will be right
The cost of equipment.
Brief description of the drawings
Fig. 1 is the schematic diagram of the power amplification device for the frequency automatic identifications of TD-LTE tri- that an embodiment of the present invention is related to；
Fig. 2 is the schematic diagram of the power amplification device for the frequency automatic identifications of TD-LTE tri- that another embodiment of the invention is related to；
Fig. 3 is the input signal selection of the power amplification device for the frequency automatic identifications of TD-LTE tri- that an embodiment of the present invention is related to
The schematic diagram of circuit and circuit for checking input signals；
Fig. 4 is the analog predistortion electricity of the power amplification device for the frequency automatic identifications of TD-LTE tri- that an embodiment of the present invention is related to
The schematic diagram on road；
Fig. 5 is the flow chart of the power amplifier method for the frequency automatic identifications of TD-LTE tri- that an embodiment of the present invention is related to；
Description of reference numerals：
101st, alc circuit；
102nd, input signal selection circuit；
103rd, monitoring unit；
104th, power control management circuit；
105th, power amplifier；115th, ANT_Band38 power amplifiers；125th, ANT_Band39 power amplifiers；135、ANT_
Band40 power amplifiers；
106th, power supply；
107th, up low noise amplifier circuit；
108th, combiner；
109th, circuit for checking input signals；
110th, ouput power detection circuit；
111st, simulated pre-distortion circuit.
Embodiment
To describe the technology contents of technical scheme in detail, feature, the objects and the effects being constructed, below in conjunction with specific reality
Apply example and coordinate accompanying drawing to be explained in detail.
Referring to Fig. 1, the signal of the power amplification device for the frequency automatic identifications of TD-LTE tri- being related to for an embodiment of the present invention
Figure.Described device includes alc circuit 101, input signal selection circuit 102, monitoring unit 103, power control management circuit
104th, power amplifier 105, power supply 106；The power amplifier 105 includes ANT_Band38 power amplifiers 115, ANT_Band39 work(
Discharge road 125 and ANT_Band40 power amplifiers 135, the alc circuit 101 and power amplifier 105, input signal selection circuit
102 are all connected with；The monitoring unit 103 is all connected with input signal selection circuit 102, power control management circuit 104, described
Power control management circuit 104 is connected with the power supply 106；
The alc circuit 101 is used to receive downlink radio-frequency signal, and by the radio signal transmission received to input signal
Selection circuit 102 and the power amplifier 105.Alc circuit (Automatic Level Control, auto level control electricity
Road), it is to be directed to because device changes in itself, environment causes operating point to change etc., the circuit of the stable level added in circuit.
In actual applications, usually through the purpose that ALC controls are reached using relay.Because relay can be realized in varied situations
Break-make and level change, ALC auto level controls are realized using the characteristic of its level change.Required for example in supervisory circuit
Possess warning function, when system sends alarm, relay change output level, protection circuit, but be not fully powered-off behaviour
Make, when resuming work, by auto level control, level when resuming work.The radiofrequency signal that alc circuit is received can pass through
Power splitter is divided into two, and transmits all the way to input signal selection circuit, another road is transmitted to the power amplifier.
The input signal selection circuit 102 is used for basis and target frequency bands signal is filtered out from received radiofrequency signal,
And target frequency bands signal will be filtered out transmit to monitoring unit 103.The target frequency bands signal include ANT_Band38 signals or
ANT_Band39 signals or ANT_Band40 signals.Target frequency bands signal is the signal for needing to carry out power amplifier processing, Ke Yiwei
One of which in ANT_Band38 signals, ANT_Band39 signals, ANT_Band40 signals.Input signal selection circuit includes
Wave detector, can be by detecting the wavelength of radiofrequency signal, to filter out target frequency bands signal.
The monitoring unit 103 is used for according to target frequency bands signal, and control power control management circuit 104 is kept and target
The power supply of the corresponding power amplifier of frequency band signals, and disconnect the electricity of other two-way power amplifier circuits not corresponding with target frequency bands signal
Source.So that target frequency bands signal is ANT_Band38 signals as an example, after monitoring unit receives ANT_Band38 signals, electricity can be controlled
Source control management circuit keeps the power supply of ANT_Band38 power amplifiers, that is, allows ANT_Band38 power amplifiers to be in work shape
State, to carry out power amplifier processing to ANT_Band38 signals.And monitoring unit is also opened control power control management circuit and disconnected
The power supply of ANT_Band39 power amplifiers and ANT_Band40 power amplifiers, to reach the purpose for saving power consumption.Target frequency bands
When signal is ANT_Band39 signals or ANT_Band40 signals, it can similarly obtain, here is omitted.Then target frequency bands
The corresponding power amplifier of signal is used to carry out power amplifier processing to target frequency bands signal in radiofrequency signal and exports the target frequency bands
Signal.
In the present embodiment, shown device also include up low noise amplifier circuit 107 and combiner 108, it is described on
Row low noise amplifier circuit 107 is connected with the power amplifier 105, the up low noise amplifier circuit 107 and the combining
Device 108 is connected, and the up low noise amplifier circuit 107 is used to receive upward signal, and to the target frequency bands in upward signal
Signal carries out low noise amplification processing.In certain embodiments, the up low noise amplifier circuit 107 includes ANT_Band38
Low noise amplifier circuit, ANT_Band39 low noise amplifier circuits and ANT_Band40 low noise amplifier circuits.Monitoring unit is also
For according to target frequency bands signal, keeping the power supply of low noise amplifier circuit corresponding with target frequency bands signal, and disconnect and mesh
Mark the power supply of other not corresponding two-way low noise amplifier circuits of frequency band signals.Equally using target frequency bands signal as ANT_Band38
Exemplified by signal, monitoring unit can control the power supply of power control management circuit holding ANT_Band38 low noise amplifier circuits, i.e.,
Make ANT_Band38 low noise amplifier circuits in running order, to be carried out to ANT_Band38 signals at low noise amplification
Reason.And monitoring unit also opens control power control management circuit and disconnects ANT_Band39 low noise amplifier circuits and ANT_
The power supply of Band40 low noise amplifier circuits, to reach the purpose for saving power consumption.Target frequency bands signal is ANT_Band39 signals
Or during ANT_Band40 signals, can similarly obtain, here is omitted.
The combiner 108 is used for the target frequency bands signal after low noise amplification is handled and non-targeted frequency in upward signal
Section channel is combined and exported.Low noise amplifier circuit can be low-noise amplifier, as its name suggests, refer to noise coefficient very
Low amplifier.The high frequency or intermediate-frequency preamplifier of all kinds of radio receivers are typically used as, and high sensitivity electronics is visited
The amplifying circuit of measurement equipment.In the occasion of amplification small-signal, the interference of the noise of amplifier itself to signal may be very serious,
It is desirable to reduce this noise, to improve the signal to noise ratio of output.
In the present embodiment, described device also includes circuit for checking input signals 109 and ouput power detection circuit
110, the circuit for checking input signals 109 is connected with input signal selection circuit 102, the ouput power detection circuit 110
It is connected with the power amplifier 105.The circuit for checking input signals 109 is used for the level for detecting current goal frequency band signals
Value, and the level value of detection is sent to monitoring unit；The ouput power detection circuit 110 is used to detect after power amplifier processing
The power output of target frequency bands signal, and the output power value detected is fed back into monitoring unit.So, monitoring unit can
To monitor the output power value of the target frequency bands signal exported after the level value and power amplifier of input signal are handled in real time, work as output
When power exceedes threshold value, monitoring unit can take countermeasure (such as deenergization), to prevent circuit to be damaged.
In the present embodiment, described device also includes simulated pre-distortion circuit 111, alc circuit 101 and power amplifier
105 connections include：Alc circuit 101 is connected with simulated pre-distortion circuit 111, simulated pre-distortion circuit 111 and power amplifier 105
Connection.The simulated pre-distortion circuit is used to carry out radiofrequency signal pre-distortion, and the radio frequency after pre-distortion is believed
Number transmit to power amplifier.Simulated pre-distortion circuit can be realized by predistortion chip.The concept of pre-distortion technology (PD)
It is all very simple with realizing, it is a kind of widely used radio-frequency power amplifier linearization technique, due to its simplicity, it can
To be used as separate unit, therefore this technology has obtained application widely.Briefly, predistortion is exactly artificially
Characteristic system just the opposite with mission nonlinear distortion including power amplifier is added, is compensated mutually, is not present
Stability problem, and have larger frequency bandwidth.In input signal before ingoing power amplifier, by using predistortion skill
Art, is amplified gain and the compensation of phase place change in the range of whole changed power.If this pre-distortion characteristics can be with
The change of power amplifier output power and change, then as caused by the factors such as temperature, supply voltage, pipe aging performance become
Change can be obtained by compensation.
In the present embodiment, the monitoring unit 103 is used to switch over target in control power control management circuit
During the power supply of the corresponding power amplifier of frequency band signals, reset processing is carried out to simulated pre-distortion circuit.Because predistortion chip is past
Toward possessing memory function, when device receives different frequency range signal, honor causes predistortion to offset failure, thus needs to pre-
Distortion chip carries out a reset processing.So, other frequency range radiofrequency signal data before predistortion chip can just be eliminated, know
Not new frequency range radiofrequency signal, so that normal work.
As shown in Fig. 2 the power amplification devices of the frequency automatic identifications of TD-LTE tri- being related to for another embodiment of the invention shows
It is intended to.The downstream signal of Band38, Band39, Band40 frequency band signals, inputs from Fig. 2 PA_IN interfaces, passes through ALC first
Circuit, then through power divider circuit work(point two-way, map interlinking 3 all the way carries out input signal selection circuit and input signal detection electricity
Road (described below)；Another road connects radio frequency link and carries out radiofrequency signal processing.Simulated pre-distortion circuit output connects power splitter, respectively
Connect the road power amplifier of Band38, Band39, Band40 tri-.By taking Band38 frequency ranges as an example, signal is by promoting amplifier tube, final stage work(
Pipe amplification is put, power tube (i.e. power amplifier) amplification is followed by circulator and is output to ANT_Band38, realizes present apparatus descending power
Amplification.Upward signal receives from ANT_Band38 and is followed by low noise amplification pipe (i.e. low noise amplification through circulator end, RF switch
Circuit), output and LAN_Band39, LAN_Band40 low noise amplifier tube combining output interface LNA_OUT realize that the present apparatus is up
Low noise amplification.Band39, Band40 power amplifier, the same Band38 of LNA circuit operation principle, the frequency simply worked is not
Equally, here is omitted.
As shown in figure 3, the input of the power amplification device for the frequency automatic identifications of TD-LTE tri- being related to for an embodiment of the present invention
The schematic diagram of signal selecting circuit and circuit for checking input signals.Power splitter port Gong Fen tri- road Band38, Band39, Band40
Input signal selection circuit SAW filter is transmitted separately to, is filtered after processing, then incoming circuit for checking input signals,
Chip HMC713 is examined by work(power detection is carried out to Band38, Band39, Band40, it is single that detection magnitude of voltage is fed back into monitoring
Member.Such as when detecting Band38 signals, by policing algorithm, watt level is calculated, so as to be judged as echo signal, monitoring is single
Member goes to control power control management circuit, and selection keeps the power supply of the corresponding power amplifier of echo signal, and disconnects other two-way
The power supply of power amplifier, Band38 radio frequency links are opened to realize.Pass through this circuit so that the present apparatus realizes three frequency signal identifications
Function.
As shown in figure 4, the simulation of the power amplification device for the frequency automatic identifications of TD-LTE tri- being related to for an embodiment of the present invention
The schematic diagram of predistortion circuit.After the output of Band38, Band39, Band40 frequency range power amplifier, coupled in output end, to three tunnels
Coupled signal is combined, and combining is followed by power splitter and carries out work(point, is divided and is detected all the way to power output, is divided and is given predistortion electricity all the way
Road.Because three frequency ranges are only working all the way at any one time, so single moment only has a frequency band signals into predistortion chip,
Being for predistortion chip can be with normal work.Again because analog predistortion chip has memory effect, so in frequency error factor
When, such as device is switched to Band39 from Band38, does not handle well, predistortion can be caused to offset failure, so the present apparatus is right
When frequency range switches, monitoring unit can to analog predistortion chip carry out a reset processing, such predistortion chip just can be with
Data before elimination, recognize new frequency band signals, so that normal work.By the reset to predistortion chip, the present apparatus is realized
Three frequency simulated pre-distortion circuits are multiplexed, and effectively reduce the cost of equipment.
As shown in figure 5, inventor additionally provides a kind of power amplifier method of the frequency automatic identifications of TD-LTE tri-, methods described application
In the power amplification device of the frequency automatic identifications of TD-LTE tri-, described device include alc circuit, input signal selection circuit, monitoring unit,
Power control management circuit, power amplifier, power supply；The power amplifier includes ANT_Band38 power amplifiers, ANT_Band39
Power amplifier and ANT_Band40 power amplifiers, the alc circuit are all connected with power amplifier, input signal selection circuit；Institute
State monitoring unit to be all connected with input signal selection circuit, power control management circuit, the power control management circuit and institute
State power supply connection；Methods described includes：
Initially enter step S501ALC circuits and receive downlink radio-frequency signal, and the downlink radio-frequency signal received is transmitted
To input signal selection circuit and the power amplifier；
Then target frequency bands are filtered out into step S502 input signals selection circuit according to from received radiofrequency signal
Signal, and target frequency bands signal will be filtered out transmit to monitoring unit, the target frequency bands signal includes ANT_Band38 signals
Or ANT_Band39 signals or ANT_Band40 signals；
Then enter step S503 monitoring units according to target frequency bands signal, control power control management circuit is kept and mesh
The power supply of the corresponding power amplifier of frequency band signals is marked, and disconnects other two-way power amplifier circuits not corresponding with target frequency bands signal
Power supply；
Then target frequency bands signal in radiofrequency signal is entered into step S504 target frequency bands signals corresponding power amplifier
Row power amplifier handles and exports the target frequency bands signal.
In the present embodiment, shown device also includes up low noise amplifier circuit and combiner, the up low noise
Sound amplifying circuit is connected with the power amplifier, and the up low noise amplifier circuit is connected with the combiner；Methods described
Including：Up low noise amplifier circuit receives upward signal, and the target frequency bands signal progress low noise in upward signal is put
Big processing；Target frequency bands signal after combiner handles low noise amplification is closed with non-targeted band channels in upward signal
Road is simultaneously exported.
In the present embodiment, described device also includes circuit for checking input signals and ouput power detection circuit, described
Circuit for checking input signals is connected with input signal selection circuit, and the ouput power detection circuit connects with the power amplifier
Connect.Methods described includes：Circuit for checking input signals detects the level value of current goal frequency band signals, and by the level value of detection
Send to monitoring unit；The power output of target frequency bands signal after ouput power detection circuit detection power amplifier processing, and by institute
The output power value of detection feeds back to monitoring unit.
In the present embodiment, described device also includes simulated pre-distortion circuit, and alc circuit is connected bag with power amplifier
Include：Alc circuit is connected with simulated pre-distortion circuit, and simulated pre-distortion circuit is connected with power amplifier；Methods described includes：Simulation
Predistortion circuit carries out pre-distortion to radiofrequency signal, and by the radio signal transmission after pre-distortion to power amplifier.
Further, methods described includes：Monitoring unit switches over target frequency bands signal correspondence in control power control management circuit
Power amplifier power supply when, to simulated pre-distortion circuit carry out reset processing.Because predistortion chip often possesses memory work(
Can, when device receives different frequency range signal, honor causes predistortion to offset failure, thus needs to carry out predistortion chip
Reset processing.So, other frequency range radiofrequency signal data before predistortion chip can just be eliminated, recognize new frequency range radio frequency
Signal, so that normal work.
The present invention has advantages below：One is selected from radiofrequency signal by input signal selection circuit needs to carry out power amplifier
The target frequency bands signal of processing, and control power control management circuit to keep corresponding with target frequency bands signal by monitoring unit
The power supply of power amplifier, disconnects the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal, so as to effectively reduce
Power consumption during device work.Meanwhile, the power amplifier progress to three frequency ranges is integrated, only need to set a rf receiver unit
And transmitting element, it is possible to realize it is automatic to three frequencies receive, identification, send, effectively increase equipment integrated level and will be right
The cost of equipment.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or terminal device including a series of key elements not only include those
Key element, but also other key elements including being not expressly set out, or also include being this process, method, article or end
The intrinsic key element of end equipment.In the absence of more restrictions, limited by sentence " including ... " or " including ... "
Key element, it is not excluded that also there is other key element in the process including the key element, method, article or terminal device.This
Outside, herein, " being more than ", " being less than ", " exceeding " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
It is to include this number.
It should be understood by those skilled in the art that, the various embodiments described above can be provided as method, device or computer program production
Product.These embodiments can be using the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Form.All or part of step in the method that the various embodiments described above are related to can be instructed by program correlation hardware come
Complete, described program can be stored in the storage medium that computer equipment can be read, for performing the various embodiments described above side
All or part of step described in method.The computer equipment, includes but is not limited to：Personal computer, server, general-purpose computations
Machine, special-purpose computer, the network equipment, embedded device, programmable device, intelligent mobile terminal, intelligent home device, Wearable
Smart machine, vehicle intelligent equipment etc.；Described storage medium, includes but is not limited to：RAM, ROM, magnetic disc, tape, CD, sudden strain of a muscle
Deposit, USB flash disk, mobile hard disk, storage card, memory stick, webserver storage, network cloud storage etc..
The various embodiments described above are with reference to method, equipment (system) and the computer program product according to embodiment
Flow chart and/or block diagram are described.It should be understood that can be by every in computer program instructions implementation process figure and/or block diagram
One flow and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computers can be provided
Programmed instruction is to the processor of computer equipment to produce a machine so that pass through the finger of the computing device of computer equipment
Order, which is produced, to be used to realize what is specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
The device of function.
These computer program instructions may be alternatively stored in the computer that computer equipment can be guided to work in a specific way and set
In standby readable memory so that the instruction being stored in the computer equipment readable memory, which is produced, includes the manufacture of command device
Product, the command device is realized to be referred in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Fixed function.
These computer program instructions can be also loaded into computer equipment so that performed on a computing device a series of
Operating procedure is to produce computer implemented processing, so that the instruction performed on a computing device is provided for realizing in flow
The step of function of being specified in one flow of figure or multiple flows and/or one square frame of block diagram or multiple square frames.
Although the various embodiments described above are described, those skilled in the art once know basic wound
The property made concept, then can make other change and modification to these embodiments, so embodiments of the invention are the foregoing is only,
Not thereby the scope of patent protection of the present invention, the equivalent structure that every utilization description of the invention and accompanying drawing content are made are limited
Or equivalent flow conversion, or other related technical fields are directly or indirectly used in, similarly it is included in the patent of the present invention
Within protection domain.
Claims (10)
1. a kind of power amplification device of the frequency automatic identifications of TD-LTE tri-, it is characterised in that described device includes alc circuit, input letter
Number selection circuit, monitoring unit, power control management circuit, power amplifier, power supply；The power amplifier includes ANT_Band38
Power amplifier, ANT_Band39 power amplifiers and ANT_Band40 power amplifiers, the alc circuit are believed with power amplifier, input
Number selection circuit is all connected with；The monitoring unit is all connected with input signal selection circuit, power control management circuit, the electricity
Source control management circuit is connected with the power supply；
The alc circuit is used to receive downlink radio-frequency signal, and the downlink radio-frequency signal received is transmitted to input signal choosing
Select circuit and the power amplifier；
The input signal selection circuit is used for basis and target frequency bands signal is filtered out from received radiofrequency signal, and will screening
Go out target frequency bands signal to transmit to monitoring unit, the target frequency bands signal includes ANT_Band38 signals or ANT_Band39 believes
Number or ANT_Band40 signals；
The monitoring unit is used for according to target frequency bands signal, and control power control management circuit is kept and target frequency bands signal pair
The power supply for the power amplifier answered, and disconnect the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal；
The corresponding power amplifier of the target frequency bands signal is used to carry out power amplifier processing simultaneously to target frequency bands signal in radiofrequency signal
Export the target frequency bands signal.
2. the power amplification device of the frequency automatic identifications of TD-LTE tri- as claimed in claim 1, it is characterised in that shown device also includes
Up low noise amplifier circuit and combiner, the up low noise amplifier circuit are connected with the power amplifier, described up
Low noise amplifier circuit is connected with the combiner, and the up low noise amplifier circuit is used to receive upward signal, and to upper
Target frequency bands signal in row signal carries out low noise amplification processing；The combiner is used for the mesh after low noise amplification is handled
Mark frequency band signals are combined and exported with non-targeted band channels in upward signal.
3. the power amplification device of the frequency automatic identifications of TD-LTE tri- as claimed in claim 1, it is characterised in that described device also includes
Circuit for checking input signals and ouput power detection circuit, the circuit for checking input signals connect with input signal selection circuit
Connect, the ouput power detection circuit is connected with the power amplifier；
The circuit for checking input signals is used for the level value for detecting current goal frequency band signals, and the level value of detection is sent
To monitoring unit；
The ouput power detection circuit is used for the power output for detecting the target frequency bands signal after power amplifier processing, and will be detected
Output power value feed back to monitoring unit.
4. the power amplification device of the frequency automatic identifications of TD-LTE tri- as claimed in claim 1, it is characterised in that described device also includes
Simulated pre-distortion circuit, alc circuit be connected with power amplifier including：Alc circuit is connected with simulated pre-distortion circuit, and simulation is pre- to lose
True circuit is connected with power amplifier；
The simulated pre-distortion circuit is used to carry out pre-distortion to radiofrequency signal, and by the radiofrequency signal after pre-distortion
Transmit to power amplifier.
5. the power amplification device of the frequency automatic identifications of TD-LTE tri- as claimed in claim 4, it is characterised in that the monitoring unit is used
When controlling power control management circuit to switch over the power supply of the corresponding power amplifier of target frequency bands signal, to simulating pre- lose
True circuit carries out reset processing.
6. a kind of power amplifier method of the frequency automatic identifications of TD-LTE tri-, it is characterised in that methods described is applied to the frequencies of TD-LTE tri- certainly
The power amplification device of dynamic identification, described device includes alc circuit, input signal selection circuit, monitoring unit, power supply management electricity
Road, power amplifier, power supply；The power amplifier includes ANT_Band38 power amplifiers, ANT_Band39 power amplifiers and ANT_
Band40 power amplifiers, the alc circuit is all connected with power amplifier, input signal selection circuit；The monitoring unit with it is defeated
Enter signal selecting circuit, power control management circuit to be all connected with, the power control management circuit is connected with the power supply；It is described
Method includes：
Alc circuit receives downlink radio-frequency signal, and the downlink radio-frequency signal received transmitted to input signal selection circuit and
The power amplifier；
Input signal selection circuit will filter out target frequency according to filtering out target frequency bands signal from received radiofrequency signal
Segment signal is transmitted to monitoring unit, and the target frequency bands signal includes ANT_Band38 signals or ANT_Band39 signals or ANT_
Band40 signals；
Monitoring unit keeps power amplifier corresponding with target frequency bands signal according to target frequency bands signal, control power control management circuit
The power supply of circuit, and disconnect the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal；
The corresponding power amplifier of target frequency bands signal carries out power amplifier processing to target frequency bands signal in radiofrequency signal and exports described
Target frequency bands signal.
7. the power amplifier method of the frequency automatic identifications of TD-LTE tri- as claimed in claim 6, it is characterised in that shown device also includes
Up low noise amplifier circuit and combiner, the up low noise amplifier circuit are connected with the power amplifier, described up
Low noise amplifier circuit is connected with the combiner；Methods described includes：
Up low noise amplifier circuit receives upward signal, and carries out low noise amplification to the target frequency bands signal in upward signal
Processing；
Target frequency bands signal after combiner handles low noise amplification is combined with non-targeted band channels in upward signal
And export.
8. the power amplifier method of the frequency automatic identifications of TD-LTE tri- as claimed in claim 6, it is characterised in that described device also includes
Circuit for checking input signals and ouput power detection circuit, the circuit for checking input signals connect with input signal selection circuit
Connect, the ouput power detection circuit is connected with the power amplifier；Methods described includes：
Circuit for checking input signals detects the level value of current goal frequency band signals, and the level value of detection is sent into single to monitoring
Member；
The power output of target frequency bands signal after ouput power detection circuit detection power amplifier processing, and by the output work detected
Rate value feeds back to monitoring unit.
9. the power amplifier method of the frequency automatic identifications of TD-LTE tri- as claimed in claim 6, it is characterised in that described device also includes
Simulated pre-distortion circuit, alc circuit be connected with power amplifier including：Alc circuit is connected with simulated pre-distortion circuit, and simulation is pre- to lose
True circuit is connected with power amplifier；Methods described includes：
Simulated pre-distortion circuit carries out pre-distortion to radiofrequency signal, and by the radio signal transmission after pre-distortion to work(
Electric discharge road.
10. the power amplifier method of the frequency automatic identifications of TD-LTE tri- as claimed in claim 9, it is characterised in that methods described includes：
Monitoring unit control power control management circuit switch over the power supply of the corresponding power amplifier of target frequency bands signal when,
Reset processing is carried out to simulated pre-distortion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710393372.9A CN107017917B (en) | 2017-05-27 | 2017-05-27 | A kind of power amplifier method and apparatus of tri- frequency automatic identification of TD-LTE |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710393372.9A CN107017917B (en) | 2017-05-27 | 2017-05-27 | A kind of power amplifier method and apparatus of tri- frequency automatic identification of TD-LTE |
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| CN107017917B CN107017917B (en) | 2019-08-02 |
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| CN107017917B (en) | 2019-08-02 |
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