CN107017917B - A kind of power amplifier method and apparatus of tri- frequency automatic identification of TD-LTE - Google Patents
A kind of power amplifier method and apparatus of tri- frequency automatic identification of TD-LTE Download PDFInfo
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- CN107017917B CN107017917B CN201710393372.9A CN201710393372A CN107017917B CN 107017917 B CN107017917 B CN 107017917B CN 201710393372 A CN201710393372 A CN 201710393372A CN 107017917 B CN107017917 B CN 107017917B
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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
-
- 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
-
- 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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- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of power amplifier method and apparatus of tri- frequency automatic identification of TD-LTE, the method selects a target frequency bands signal for needing to carry out power amplifier processing by input signal selection circuit from radiofrequency signal, and the power supply that power control management circuit keeps 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, to effectively reduce power consumption when device work.Meanwhile the power amplifier of three frequency ranges is integrated, only a rf receiver unit and transmission unit need to be set, so that it may realize it is automatic to three frequencies receive, identification, send, effectively increase the integrated level of equipment and by the cost of right equipment.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of power amplifier method and apparatus of tri- frequency automatic identification of TD-LTE.
Background technique
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 100Mbps or more is downloaded, 25 times faster than current home broadband AD SL (4,000,000), and can satisfy nearly all
Requirement of the user for wireless service.
Existing 4G frequency range is more, and RF power amplification unit passes through the enhanced processing for only supporting the radiofrequency signal of a certain frequency range, right
In the radiofrequency signal of different frequency range, need to be arranged different Receiver Modules, transmitting module carries out the sending and receiving of signal.For example,
For operator, China Mobile, the radiofrequency signal (Band38, Band39, Band40) of three frequency ranges in TD-LTE standard,
Need to be arranged receiving module, the transmitting module of 3 radiofrequency signals altogether.This will lead to being significantly increased for hardware cost, waste
Sizable resource.
Summary of the invention
For this reason, it may be necessary to a kind of technical solution of the power amplifier of tri- frequency automatic identification of TD-LTE be provided, to solve current TD-
LTE radio power amplifier unit is respectively provided with independent Receiver Module and transmitting module, leads due to being directed to each frequency range radiofrequency signal
The problems such as causing hardware cost increase, waste of resource.
To achieve the above object, a kind of power amplification device of tri- frequency automatic identification of TD-LTE, 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 amplifier, ANT_Band39 power amplifier and ANT_Band40 power amplifier, the alc circuit
It is all connected with power amplifier, input signal selection circuit；The monitoring unit and input signal selection circuit, power supply control manage
Circuit is all connected with, and the power control management circuit is connect with the power supply；
The alc circuit is transmitted to input letter for receiving downlink radio-frequency signal, and by the received downlink radio-frequency signal of institute
Number selection circuit and the power amplifier；
The input signal selection circuit is used for basis and filters out target frequency bands signal from received radiofrequency signal, and will
It filters out target frequency bands signal and is transmitted to monitoring unit, the target frequency bands signal includes ANT_Band38 signal or ANT_
Band39 signal or ANT_Band40 signal；
The monitoring unit is used to control power control management circuit according to target frequency bands signal and keep 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
It manages and exports the target frequency bands signal.
Further, shown device further includes uplink low noise amplifier circuit and combiner, the uplink low noise amplification
Circuit is connect with the power amplifier, and the uplink low noise amplifier circuit is connect with the combiner, the uplink low noise
Amplifying circuit carries out low noise amplification processing for receiving uplink signal, and to the target frequency bands signal in uplink signal；It is described
Combiner is used to for low noise amplification treated target frequency bands signal being combined with band channels non-targeted in uplink signal
And it exports.
Further, described device further includes circuit for checking input signals and ouput power detection circuit, the input letter
Number detection circuit is connect with input signal selection circuit, and the ouput power detection circuit is connect with the power amplifier；
The circuit for checking input signals is used to detect the level value of current goal frequency band signals, and the level value that will test
It is sent to monitoring unit；
The ouput power detection circuit is used to detect power amplifier the output power of treated target frequency bands signal, and by institute
The output power value of detection feeds back to monitoring unit.
Further, described device further includes simulated pre-distortion circuit, and it includes: ALC electricity that alc circuit is connect with power amplifier
Road is connect with simulated pre-distortion circuit, and simulated pre-distortion circuit is connect 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
When 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 tri- frequency automatic identification of TD-LTE, and the method is applied to tri- frequency of TD-LTE certainly
The power amplification device of dynamic identification, described device include alc circuit, input signal selection circuit, monitoring unit, power supply control management electricity
Road, power amplifier, power supply；The power amplifier includes ANT_Band38 power amplifier, ANT_Band39 power amplifier and ANT_
Band40 power amplifier, the alc circuit are all connected with power amplifier, input signal selection circuit；The monitoring unit with it is defeated
Enter signal selecting circuit, power control management circuit is all connected with, the power control management circuit is connect with the power supply；It is described
Method includes:
Alc circuit receives downlink radio-frequency signal, and the received downlink radio-frequency signal of institute 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 signal or ANT_Band39 signal or
ANT_Band40 signal；
Monitoring unit controls power control management circuit and keeps corresponding with target frequency bands signal according to target frequency bands signal
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 exports
The target frequency bands signal.
Further, shown device further includes uplink low noise amplifier circuit and combiner, the uplink low noise amplification
Circuit is connect with the power amplifier, and the uplink low noise amplifier circuit is connect with the combiner；The described method includes:
Uplink low noise amplifier circuit receives uplink signal, and carries out low noise to the target frequency bands signal in uplink signal
Enhanced processing；
Combiner carries out band channels non-targeted in low noise amplification treated target frequency bands signal and uplink signal
It is combined and exports.
Further, described device further includes circuit for checking input signals and ouput power detection circuit, the input letter
Number detection circuit is connect with input signal selection circuit, and the ouput power detection circuit is connect 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 that will test is sent to prison
Control unit；
Ouput power detection circuit detects the output power of power amplifier treated target frequency bands signal, and will be detected defeated
Performance number feeds back to monitoring unit out.
Further, described device further includes simulated pre-distortion circuit, and it includes: ALC electricity that alc circuit is connect with power amplifier
Road is connect with simulated pre-distortion circuit, and simulated pre-distortion circuit is connect with power amplifier；The described method 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, which comprises
Monitoring unit switches over the electricity of the corresponding power amplifier of target frequency bands signal in control power control management circuit
When source, reset processing is carried out to simulated pre-distortion circuit.
The invention has the following advantages that selecting one to need to carry out power amplifier from radiofrequency signal by input signal selection circuit
The target frequency bands signal of processing, and power control management circuit is controlled by monitoring unit and keeps corresponding with target frequency bands signal
The power supply of power amplifier disconnects the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal, to be effectively reduced
Power consumption when device work.Meanwhile the power amplifier of three frequency ranges is integrated, a rf receiver unit need to be only set
And transmission unit, so that it may realize it is automatic to three frequencies receive, identification, send, effectively increase equipment integrated level and will be right
The cost of equipment.
Detailed description of the invention
Fig. 1 is the schematic diagram of the power amplification device for the tri- frequency automatic identification of TD-LTE that an embodiment of the present invention is related to；
Fig. 2 is the schematic diagram of the power amplification device for the tri- frequency automatic identification of TD-LTE that another embodiment of the present invention is related to；
Fig. 3 is the input signal selection of the power amplification device for the tri- frequency automatic identification of TD-LTE 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 tri- frequency automatic identification of TD-LTE 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 tri- frequency automatic identification of TD-LTE that an embodiment of the present invention is related to；
Description of symbols:
101, alc circuit；
102, input signal selection circuit；
103, monitoring unit；
104, power control management circuit；
105, power amplifier；115, ANT_Band38 power amplifier；125, ANT_Band39 power amplifier；135,ANT_
Band40 power amplifier；
106, power supply；
107, uplink low noise amplifier circuit；
108, combiner；
109, circuit for checking input signals；
110, ouput power detection circuit；
111, simulated pre-distortion circuit.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
Referring to Fig. 1, being the signal of the power amplification device for the tri- frequency automatic identification of TD-LTE that an embodiment of the present invention is related to
Figure.Described device includes alc circuit 101, input signal selection circuit 102, monitoring unit 103, power control management circuit
104, power amplifier 105, power supply 106；The power amplifier 105 includes ANT_Band38 power amplifier 115, ANT_Band39 function
Discharge road 125 and ANT_Band40 power amplifier 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 connect with the power supply 106；
The alc circuit 101 is for receiving downlink radio-frequency signal, and by the received radio signal transmission of institute to input signal
Selection circuit 102 and the power amplifier 105.Alc circuit (Automatic Level Control, auto level control electricity
Road), it is for since device itself changes, environment causes operating point variation etc., the circuit for the stable level being added in circuit.
In practical applications, often achieve the purpose that ALC is controlled by using relay.Because relay can be realized in varied situations
On-off and level change realize ALC auto level control using the characteristic of its level change.Such as it is required in monitoring circuit
Has warning function, when system is issued and alarmed, relay changes output level, protects circuit, but be not fully powered-off behaviour
Make, when resuming work, by auto level control, level when resuming work.The received radiofrequency signal of alc circuit can pass through
Power splitter is divided into two, and is transmitted to input signal selection circuit all the way, and another way is transmitted to the power amplifier.
The input signal selection circuit 102 is used for basis and filters out target frequency bands signal from received radiofrequency signal,
And target frequency bands signal will be filtered out and be transmitted to monitoring unit 103.The target frequency bands signal include ANT_Band38 signal or
ANT_Band39 signal or ANT_Band40 signal.Target frequency bands signal is the signal for needing to carry out power amplifier processing, Ke Yiwei
ANT_Band38 signal, ANT_Band39 signal, the one of which in ANT_Band40 signal.Input signal selection circuit includes
Wave detector, can be by the wavelength of detection radiofrequency signal, to filter out target frequency bands signal.
The monitoring unit 103 is used to control the holding of power control management circuit 104 and target according to target frequency bands signal
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.By taking target frequency bands signal is ANT_Band38 signal as an example, after monitoring unit receives ANT_Band38 signal, electricity can be controlled
Source control management circuit keeps the power supply of ANT_Band38 power amplifier, that is, ANT_Band38 power amplifier is allowed to be in work shape
State, to carry out power amplifier processing to ANT_Band38 signal.And monitoring unit is also opened control power control management circuit and is disconnected
The power supply of ANT_Band39 power amplifier and ANT_Band40 power amplifier, to achieve the purpose that save power consumption.Target frequency bands
When signal is ANT_Band39 signal or ANT_Band40 signal, can similarly it obtain, details are not described herein again.The 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 further includes uplink low noise amplifier circuit 107 and combiner 108, it is described on
Row low noise amplifier circuit 107 is connect with the power amplifier 105, the uplink low noise amplifier circuit 107 and the combining
Device 108 connects, and the uplink low noise amplifier circuit 107 is used to receive uplink signal, and to the target frequency bands in uplink signal
Signal carries out low noise amplification processing.In certain embodiments, the uplink low noise amplifier circuit 107 includes ANT_Band38
Low noise amplifier circuit, ANT_Band39 low noise amplifier circuit and ANT_Band40 low noise amplifier circuit.Monitoring unit is also
For keeping the power supply of low noise amplifier circuit corresponding with target frequency bands signal, and disconnection and mesh according to target frequency bands signal
Mark the power supply of other not corresponding two-way low noise amplifier circuits of frequency band signals.It is equally ANT_Band38 with target frequency bands signal
For signal, monitoring unit can control the power supply that power control management circuit keeps ANT_Band38 low noise amplifier circuit, i.e.,
Make ANT_Band38 low noise amplifier circuit in running order, to carry out at low noise amplification to ANT_Band38 signal
Reason.And monitoring unit also opens control power control management circuit and disconnects ANT_Band39 low noise amplifier circuit and ANT_
The power supply of Band40 low noise amplifier circuit, to achieve the purpose that save power consumption.Target frequency bands signal is ANT_Band39 signal
Or when ANT_Band40 signal, can similarly it obtain, details are not described herein again.
The combiner 108 is used for non-targeted frequency in low noise amplification treated target frequency bands signal and uplink signal
Section channel is combined and exports.Low noise amplifier circuit can refer to noise coefficient very as its name suggests for low-noise amplifier
Low amplifier.It is typically used as the high frequency or intermediate-frequency preamplifier of all kinds of radio receivers, and highly sensitive electronics is visited
The amplifying circuit of measurement equipment.In the occasion of amplification small-signal, the noise of amplifier itself may be very serious to the interference of signal,
Therefore, it is desirable to reduce this noise, to improve the signal-to-noise ratio of output.
In the present embodiment, described device further includes circuit for checking input signals 109 and ouput power detection circuit
110, the circuit for checking input signals 109 is connect with input signal selection circuit 102, the ouput power detection circuit 110
It is connect with the power amplifier 105.The circuit for checking input signals 109 is used to detect the level of current goal frequency band signals
Value, and the level value that will test is sent to monitoring unit；Treated for detecting power amplifier for the ouput power detection circuit 110
The output power of target frequency bands signal, and output power value detected is fed back into monitoring unit.In this way, monitoring unit can
Output power value with the target frequency bands signal exported after the level value of real-time monitoring input signal and power amplifier processing, works as output
When power is more than threshold value, monitoring unit can take countermeasure (as disconnected power supply), to prevent circuit to be damaged.
In the present embodiment, described device further includes simulated pre-distortion circuit 111, alc circuit 101 and power amplifier
105 connections include: that alc circuit 101 is connect 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 it is transmitted 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 use as separate unit, therefore this technology has been widely used.Briefly, predistortion is exactly artificially
A characteristic is added and is distorted just the opposite system with the mission nonlinear including power amplifier, is compensated mutually, is not present
Stability problem, and have biggish frequency bandwidth.In input signal before ingoing power amplifier, by using predistortion skill
Art amplifies gain and the compensation of phase change within the scope of entire changed power.If this pre-distortion characteristics can be with
The variation of power amplifier output power and change, then the performance as caused by the factors such as temperature, supply voltage, pipe aging 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
When 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 having memory function, when device receives different frequency range signal, honor causes predistortion to offset failure, thus needs to pre-
It is distorted chip and carries out a reset processing.In this way, predistortion chip can eliminate before other frequency range radiofrequency signal data, know
Not new frequency range radiofrequency signal, to work normally.
As shown in Fig. 2, being showing for the power amplification device for the tri- frequency automatic identification of TD-LTE that another embodiment of the present invention is related to
It is intended to.The downlink signal of Band38, Band39, Band40 frequency band signals inputs from the PA_IN interface of Fig. 2, passes through ALC first
Then circuit divides two-way through power divider circuit function, map interlinking 3 carries out input signal selection circuit and input signal detection electricity all the way
Road (described below)；Another way connects radio frequency link and carries out radiofrequency signal processing.Simulated pre-distortion circuit output connects power splitter, respectively
Connect tri- road power amplifier of Band38, Band39, Band40.By taking Band38 frequency range as an example, signal is by pushing amplifier tube, final stage function
Guan Fang great 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.Uplink 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 is combined output interface LNA_OUT with LAN_Band39, LAN_Band40 low noise amplifier tube, realizes present apparatus uplink
Low noise amplification.Band39, Band40 power amplifier, the same Band38 of low noise circuit operation principle, the frequency only to work is not
Equally, details are not described herein again.
As shown in figure 3, being the input of the power amplification device for the tri- frequency automatic identification of TD-LTE that an embodiment of the present invention is related to
The schematic diagram of signal selecting circuit and circuit for checking input signals.Power splitter port Gong Fen tri- road Band38, Band39, Band40
It is transmitted separately to input signal selection circuit SAW filter, after being filtered, then incoming circuit for checking input signals,
Chip HMC713 is examined by function, power detection is carried out to Band38, Band39, Band40, will test voltage value and feed back to monitoring list
Member.Such as when detecting Band38 signal, by policing algorithm, watt level is calculated, to be judged as echo signal, monitoring is single
Member removes 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 opens Band38 radio frequency link to realize.By this circuit, so that the present apparatus realizes three frequency signal identifications
Function.
As shown in figure 4, being the simulation of the power amplification device for the tri- frequency automatic identification of TD-LTE that an embodiment of the present invention is related to
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 is combined and is followed by power splitter progress function point, divide and detect all the way to output power, divides and give predistortion electricity all the way
Road.Because three frequency ranges are only working all the way at any one time, so single moment enters predistortion chip and there was only a frequency band signals,
It is that can work normally for predistortion chip.Again because analog predistortion chip has memory effect, so in frequency error factor
When, it if device is switched to Band39 from Band38, is not handled properly, will lead to predistortion and offset failure, so the present apparatus is right
When frequency range switches, monitoring unit can carry out a reset processing, such predistortion chip to analog predistortion chip
Data before elimination identify new frequency band signals, to work normally.By the reset to predistortion chip, the present apparatus is realized
The multiplexing of three frequency simulated pre-distortion circuits, effectively reduces the cost of equipment.
As shown in figure 5, inventor additionally provides a kind of power amplifier method of tri- frequency automatic identification of TD-LTE, the method application
In the power amplification device of tri- frequency automatic identification of TD-LTE, 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 amplifier, ANT_Band39
Power amplifier and ANT_Band40 power amplifier, the alc circuit are all connected with power amplifier, input signal selection circuit；Institute
It states 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；The described method includes:
It initially enters step S501ALC circuit and receives downlink radio-frequency signal, and the received downlink radio-frequency signal of institute is transmitted
To input signal selection circuit and the power amplifier；
It then enters step S502 input signal selection circuit and filters out target frequency bands according to from received radiofrequency signal
Signal, and target frequency bands signal will be filtered out and be transmitted to monitoring unit, the target frequency bands signal includes ANT_Band38 signal
Or ANT_Band39 signal or ANT_Band40 signal；
S503 monitoring unit is then entered step according to target frequency bands signal, controls power control management circuit holding 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 enter step the corresponding power amplifier of S504 target frequency bands signal to target frequency bands signal in radiofrequency signal into
Row power amplifier handles and exports the target frequency bands signal.
In the present embodiment, shown device further includes uplink low noise amplifier circuit and combiner, the uplink low noise
Sound amplifying circuit is connect with the power amplifier, and the uplink low noise amplifier circuit is connect with the combiner；The method
It include: that uplink low noise amplifier circuit receives uplink signal, and carries out low noise to the target frequency bands signal in uplink signal and put
Big processing；Combiner closes low noise amplification treated target frequency bands signal with band channels non-targeted in uplink signal
Road simultaneously exports.
In the present embodiment, described device further includes circuit for checking input signals and ouput power detection circuit, described
Circuit for checking input signals is connect with input signal selection circuit, and the ouput power detection circuit and the power amplifier connect
It connects.The described method includes: the level value of circuit for checking input signals detection current goal frequency band signals, and the level value that will test
It is sent to monitoring unit；Ouput power detection circuit detects the output power of power amplifier treated target frequency bands signal, and by institute
The output power value of detection feeds back to monitoring unit.
In the present embodiment, described device further includes simulated pre-distortion circuit, and alc circuit connect packet with power amplifier
Include: alc circuit is connect with simulated pre-distortion circuit, and simulated pre-distortion circuit is connect with power amplifier；The described method includes: simulation
Predistortion circuit carries out pre-distortion to radiofrequency signal, and by the radio signal transmission after pre-distortion to power amplifier.
Further, which comprises monitoring unit switches over target frequency bands signal in control power control management circuit and corresponds to
Power amplifier power supply when, to simulated pre-distortion circuit carry out reset processing.Because predistortion chip often has memory function
Can, when device receives different frequency range signal, honor causes predistortion to offset failure, thus needs to carry out predistortion chip
Reset processing.In this way, predistortion chip can eliminate before other frequency range radiofrequency signal data, identify new frequency range radio frequency
Signal, to work normally.
The invention has the following advantages that selecting one to need to carry out power amplifier from radiofrequency signal by input signal selection circuit
The target frequency bands signal of processing, and power control management circuit is controlled by monitoring unit and keeps corresponding with target frequency bands signal
The power supply of power amplifier disconnects the power supply of other two-way power amplifier circuits not corresponding with target frequency bands signal, to be effectively reduced
Power consumption when device work.Meanwhile the power amplifier of three frequency ranges is integrated, a rf receiver unit need to be only set
And transmission unit, so that it may 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, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or the terminal device that include a series of elements not only include those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or end
The intrinsic element of end equipment.In the absence of more restrictions, being limited by sentence " including ... " or " including ... "
Element, it is not excluded that there is also other elements in process, method, article or the terminal device for including the element.This
Outside, herein, " being greater than ", " being less than ", " being more than " etc. are interpreted as not including this number；" more than ", " following ", " within " etc. understand
Being includes this number.
It should be understood by those skilled in the art that, the various embodiments described above can provide as method, apparatus or computer program production
Product.Complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in these embodiments
Form.The all or part of the steps in method that the various embodiments described above are related to can be instructed by program relevant hardware come
It completes, the program can store in the storage medium that computer equipment can be read, for executing the various embodiments described above side
All or part of the steps described in method.The computer equipment, including but not limited to: personal computer, server, general-purpose computations
It is machine, special purpose computer, the network equipment, embedded device, programmable device, intelligent mobile terminal, smart home device, wearable
Smart machine, vehicle intelligent equipment etc.；The storage medium, including but not limited to: RAM, ROM, magnetic disk, tape, CD, sudden strain of a muscle
It deposits, USB flash disk, mobile hard disk, storage card, memory stick, webserver storage, network cloud storage etc..
The various embodiments described above are referring to the method according to embodiment, equipment (system) and computer program product
Flowchart and/or the block diagram describes.It should be understood that can be realized by computer program instructions every in flowchart and/or the block diagram
The combination of process and/or box in one process and/or box and flowchart and/or the block diagram.It can provide these computers
Program instruction generates a machine to the processor of computer equipment, so that the finger executed by the processor of computer equipment
It enables and generates to specify in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of function.
These computer program instructions, which may also be stored in, to be able to guide computer equipment computer operate in a specific manner and sets
In standby readable memory, so that the instruction being stored in the computer equipment readable memory generates the manufacture including command device
Product, command device realization refer in one or more flows of the flowchart and/or one or more blocks of the block diagram
Fixed function.
These computer program instructions can also be loaded into computer equipment, so that executing on a computing device a series of
Operating procedure is to generate computer implemented processing, so that the instruction executed on a computing device is provided for realizing in process
The step of function of being specified in figure one process or multiple processes and/or block diagrams one box or multiple boxes.
Although the various embodiments described above are described, once a person skilled in the art knows basic wounds
The property made concept, then additional changes and modifications can be made to these embodiments, so the above description is only an embodiment of the present invention,
It is not intended to limit scope of patent protection of the invention, it is all to utilize equivalent structure made by description of the invention and accompanying drawing content
Or equivalent process transformation, being applied directly or indirectly in other relevant technical fields, similarly includes in patent of the invention
Within protection scope.
Claims (10)
1. a kind of power amplification device of tri- frequency automatic identification of TD-LTE, which is characterized 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 Band38 power amplifier
Circuit, Band39 power amplifier and Band40 power amplifier, the alc circuit and power amplifier, input signal selection circuit are equal
Connection；The monitoring unit is all connected with input signal selection circuit, power control management circuit, the power supply control management electricity
Road is connect with the power supply；
The alc circuit is transmitted to input signal choosing for receiving downlink radio-frequency signal, and by the received downlink radio-frequency signal of institute
Select circuit and the power amplifier；
The input signal selection circuit is used for basis and filters out target frequency bands signal from received radiofrequency signal, and will screening
Target frequency bands signal is transmitted to monitoring unit out, the target frequency bands signal include Band38 signal or Band39 signal or
Band40 signal；
The monitoring unit is used to control power control management circuit according to target frequency bands signal and keep 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 tri- frequency automatic identification of TD-LTE as described in claim 1, which is characterized in that shown device further includes
Uplink low noise amplifier circuit and combiner, the uplink low noise amplifier circuit are connect with the power amplifier, the uplink
Low noise amplifier circuit is connect with the combiner, and the uplink low noise amplifier circuit is used to receive uplink signal, and to upper
Target frequency bands signal in row signal carries out low noise amplification processing；The combiner is used for low noise amplification treated mesh
Mark frequency band signals are combined and export with band channels non-targeted in uplink signal.
3. the power amplification device of tri- frequency automatic identification of TD-LTE as described in claim 1, which is characterized in that described device further includes
Circuit for checking input signals and ouput power detection circuit, the circuit for checking input signals and input signal selection circuit connect
It connects, the ouput power detection circuit is connect with the power amplifier；
The level value that the circuit for checking input signals is used to detect the level value of current goal frequency band signals, and will test is sent
To monitoring unit；
The ouput power detection circuit is used to detect power amplifier the output power of treated target frequency bands signal, and will be detected
Output power value feed back to monitoring unit.
4. the power amplification device of tri- frequency automatic identification of TD-LTE as described in claim 1, which is characterized in that described device further includes
Simulated pre-distortion circuit, it includes: that alc circuit is connect with simulated pre-distortion circuit that alc circuit is connect with power amplifier, simulates pre- lose
True circuit is connect 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
It is transmitted to power amplifier.
5. the power amplification device of tri- frequency automatic identification of TD-LTE as claimed in claim 4, which is characterized in that the monitoring unit is used
In when control power control management circuit switches over the power supply of the corresponding power amplifier of target frequency bands signal, simulation is lost in advance
True circuit carries out reset processing.
6. a kind of power amplifier method of tri- frequency automatic identification of TD-LTE, which is characterized in that the method is applied to tri- frequency of TD-LTE certainly
The power amplification device of dynamic identification, described device include alc circuit, input signal selection circuit, monitoring unit, power supply control management electricity
Road, power amplifier, power supply；The power amplifier includes Band38 power amplifier, Band39 power amplifier and Band40 power amplifier electricity
Road, the alc circuit are all connected with power amplifier, input signal selection circuit；The monitoring unit and input signal selection electricity
Road, power control management circuit are all connected with, and the power control management circuit is connect with the power supply；The described method includes:
Alc circuit receives downlink radio-frequency signal, and by the received downlink radio-frequency signal of institute be 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 Band38 signal or Band39 signal or Band40 signal；
Monitoring unit controls power control management circuit and keeps power amplifier corresponding with target frequency bands signal according to target frequency bands signal
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 described in power amplifier processing and output target frequency bands signal in radiofrequency signal
Target frequency bands signal.
7. the power amplifier method of tri- frequency automatic identification of TD-LTE as claimed in claim 6, which is characterized in that shown device further includes
Uplink low noise amplifier circuit and combiner, the uplink low noise amplifier circuit are connect with the power amplifier, the uplink
Low noise amplifier circuit is connect with the combiner；The described method includes:
Uplink low noise amplifier circuit receives uplink signal, and carries out low noise amplification to the target frequency bands signal in uplink signal
Processing；
Low noise amplification treated target frequency bands signal is combined by combiner with band channels non-targeted in uplink signal
And it exports.
8. the power amplifier method of tri- frequency automatic identification of TD-LTE as claimed in claim 6, which is characterized in that described device further includes
Circuit for checking input signals and ouput power detection circuit, the circuit for checking input signals and input signal selection circuit connect
It connects, the ouput power detection circuit is connect with the power amplifier；The described method includes:
Circuit for checking input signals detects the level value of current goal frequency band signals, and the level value that will test is sent to monitoring list
Member；
Ouput power detection circuit detects the output power of power amplifier treated target frequency bands signal, and by output work detected
Rate value feeds back to monitoring unit.
9. the power amplifier method of tri- frequency automatic identification of TD-LTE as claimed in claim 6, which is characterized in that described device further includes
Simulated pre-distortion circuit, it includes: that alc circuit is connect with simulated pre-distortion circuit that alc circuit is connect with power amplifier, simulates pre- lose
True circuit is connect with power amplifier；The described method includes:
Simulated pre-distortion circuit carries out pre-distortion to radiofrequency signal, and by the radio signal transmission after pre-distortion to function
Electric discharge road.
10. the power amplifier method of tri- frequency automatic identification of TD-LTE as claimed in claim 9, which is characterized in that the described method 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.
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| 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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| 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 true CN107017917B (en) | 2019-08-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082815B (en) * | 2018-10-18 | 2022-04-26 | 力同科技股份有限公司 | Power amplifier circuit, design method and communication terminal |
| CN110493795A (en) * | 2019-08-14 | 2019-11-22 | 福州数据技术研究院有限公司 | A kind of high-power CPE device of 5G based on wide area broadband communication for coordination |
| CN111355510A (en) * | 2020-03-11 | 2020-06-30 | 苏州锐迪优通讯科技有限公司 | 5G three-frequency power amplifier device |
| CN112865713B (en) * | 2021-01-22 | 2022-06-07 | 成都市凌巨通科技有限公司 | Multi-frequency band signal amplifier |
| CN113573424A (en) * | 2021-07-26 | 2021-10-29 | 河北远东通信系统工程有限公司 | Multifunctional data transmission terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699704U (en) * | 2010-06-23 | 2011-01-05 | 福建三元达通讯股份有限公司 | Three-frequency wireless repeater |
| CN102355283A (en) * | 2011-09-23 | 2012-02-15 | 青岛鼎信通讯有限公司 | ASIC (application-specific integrated circuit) chip applicable to low-voltage power line carrier communication |
| CN105049077A (en) * | 2015-05-28 | 2015-11-11 | 络达科技股份有限公司 | Broadband front-end device and its method for filtering radio frequency signals |
| CN105048979A (en) * | 2014-04-17 | 2015-11-11 | 德克萨斯仪器股份有限公司 | Multi-branch outphasing system and method |
| CN105324936A (en) * | 2013-07-04 | 2016-02-10 | 株式会社村田制作所 | Power amplification module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6646504B2 (en) * | 2001-08-17 | 2003-11-11 | Harris Corporation | Broadband amplifier system having improved linearity and minimum loss |
| JP2004248323A (en) * | 2004-04-23 | 2004-09-02 | Matsushita Electric Works Ltd | Amplifier circuit of television switch module |
| US20140327483A1 (en) * | 2013-05-03 | 2014-11-06 | Rfaxis, Inc. | Complementary metal oxide semiconductor power amplifier |
-
2017
- 2017-05-27 CN CN201710393372.9A patent/CN107017917B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201699704U (en) * | 2010-06-23 | 2011-01-05 | 福建三元达通讯股份有限公司 | Three-frequency wireless repeater |
| CN102355283A (en) * | 2011-09-23 | 2012-02-15 | 青岛鼎信通讯有限公司 | ASIC (application-specific integrated circuit) chip applicable to low-voltage power line carrier communication |
| CN105324936A (en) * | 2013-07-04 | 2016-02-10 | 株式会社村田制作所 | Power amplification module |
| CN105048979A (en) * | 2014-04-17 | 2015-11-11 | 德克萨斯仪器股份有限公司 | Multi-branch outphasing system and method |
| CN105049077A (en) * | 2015-05-28 | 2015-11-11 | 络达科技股份有限公司 | Broadband front-end device and its method for filtering radio frequency signals |
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