CN107086879A - Adjustable RF circuit, communication terminal and adjustable RF circuit control method - Google Patents
Adjustable RF circuit, communication terminal and adjustable RF circuit control method Download PDFInfo
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- CN107086879A CN107086879A CN201710108975.XA CN201710108975A CN107086879A CN 107086879 A CN107086879 A CN 107086879A CN 201710108975 A CN201710108975 A CN 201710108975A CN 107086879 A CN107086879 A CN 107086879A
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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
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Abstract
The present invention provides a kind of adjustable RF circuit, communication terminal and adjustable RF circuit control method, including RF transceiver, power amplifier, antenna, at least radiofrequency signal transmission circuit all the way, temperature detector, processor and match control circuit, radiofrequency signal transmission circuit include the first adjustable match circuit and filter circuit；The first adjustable match circuit and filter circuit that power amplifier passes sequentially through each radiofrequency signal transmission circuit is connected to form radiofrequency signal transmitting-receiving path with antenna；Temperature detector detects the temperature of power amplifier, processor is controlled according to the temperature value detected by match control circuit to the match parameter of the first adjustable match circuit of radiofrequency signal transmission circuit, so that the ACLR of the road radiofrequency signal transmission circuit is provided as the change of power amplifier operating temperature carries out corresponding dynamic adjustment with meeting communication protocol, avoid interfering and reduce whole communication system capacity situation occur, ensure communication quality, lift Consumer's Experience.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of adjustable RF circuit, communication terminal and tunable radio frequency electricity
Road control method.
Background technology
In order to meet demand when data service explosive growth and user use new business, mobile technology from 1G to
Various technological innovations are support during the continuing to develop of 2G, 2G to 3G, 3G to 4G.Wherein 4G, Long Term Evolution (Long
TermEvolution, LTE) standard mainly includes time division multiplexing (Time Division Duplex, TDD) and frequency division multiplexing
(Frequency Division Duplex, FDD) both of which.And for LTE frequency allocation number, be between 1 ∽ 25
To frequency spectrum, i.e. FDD.33 ∽ 43 are used for non-symmetrical spectrum, that is, TDD.
With the continuous maturation of radio-frequency technique, while with the continuous improvement of radio circuit integrated level, radio circuit is set
Meter work also becomes to become increasingly complex.The demand more and more higher of user, in order to meet the demand of user, the frequency that radio circuit is supported
Section is also more and more, and the space for the radio frequency placement-and-routing being given to is not significantly increased, or even as terminal is towards light, thinning
The trend that wiring space that the development in direction is reserved even is reduced, under such circumstances, add the design difficulty of radio frequency with
And debugging difficulty.In radio frequency transmitter circuitry, one of which important indicator is ACLR (Adjacent Channel Leakage
Ratio, adjacent channel leakage ratio), ACLR is that one of transmission RF energy refers to for weighing regulation using beyond transmission channel
Mark is produced by output power amplifier, due to that can disturb and destroy defined demand, it is therefore necessary to accurately measured.
In order to meet ACLR, current radio circuit is all matching first to the match circuit on the radiofrequency signal transmission circuit of each frequency range
Parameter is configured so that the ACLR of the radiofrequency signal transmission circuit of each frequency range meets communication protocols specified in relevant communication protocol
Discuss index.For example, with reference to the radio circuit shown in Fig. 1, by antenna, coupler, RF switch, power amplifier, the third level
The three road radio-frequency receiving-transmitting signal circuit groups with circuit and RF transceiver and between power amplifier and RF switch
Into wherein two-way radiofrequency signal transmitting-receiving two-way above is fdd mode, bottom is tdd mode all the way.Tu1Zhong Ge roads radio frequency
The match parameter of the second level match circuit of receiving and transmitting signal is fixedly installed when dispatching from the factory so that the radiofrequency signal of each frequency range is received
The ACLR of Power Generation Road meets communication protocol index specified in relevant communication protocol.First order match circuit and the third level in Fig. 1
The match parameter of match circuit is also what is be fixedly installed.But, during normal use, the operating temperature meeting of power amplifier
Dynamic change, so that the ACLR of the radiofrequency signal transmission circuit of frequency range can be caused to exceed therewith dynamic change specified in agreement
Communication protocol index, so as to cause very big interference, reduces the capacity of whole communication system.
The content of the invention
The embodiment of the present invention provides a kind of adjustable RF circuit, communication terminal and adjustable RF circuit control method, to solve
The match parameter of the match circuit of certainly existing radio circuit is fixedly installed, and causing can not be according to the operating temperature pair of power amplifier
The match parameter of match circuit is controlled such that the problem of ACLR of radio circuit meets communication protocol regulation.
In order to solve the above technical problems, the embodiment of the present invention uses following technical scheme:
A kind of adjustable RF circuit, including RF transceiver, power amplifier, antenna, at least radiofrequency signal is received and dispatched all the way
Circuit, temperature detector, processor and match control circuit；
The radiofrequency signal transmission circuit includes the first adjustable match circuit and filter circuit；
The RF transceiver is connected with the power amplifier, and the power amplifier passes sequentially through each radio frequency letter
First adjustable match circuit and filter circuit of number transmission circuit is connected to form radiofrequency signal transmitting-receiving path with the antenna；
The temperature detector is used for the temperature for detecting the power amplifier, and the temperature value detected is issued into described
Processor；
The processor is used for according to the temperature value, by the match control circuit at least the radio frequency is believed all the way
The match parameter of first adjustable match circuit of number transmission circuit is controlled.
Further, the described first adjustable match circuit is the LC match circuits comprising controllable impedance and tunable capacitor, institute
State at least one in the capacitance of inductance value and tunable capacitor of the match parameter including the controllable impedance.
Further, the processor is used for according to the temperature value, is respectively penetrated to described by the match control circuit
The match parameter of first adjustable match circuit of frequency signal transmitting and receiving circuit is controlled.
Further, the processor is used to default temperature value enter the temperature value with match parameter corresponding relation
Row matching, obtains object matching parameter corresponding with the temperature value, is penetrated by the match control circuit at least described all the way
The match parameter of first adjustable match circuit of frequency signal transmitting and receiving circuit is adjusted to the object matching parameter.
Further, the radiofrequency signal transmission circuit also includes the second adjustable match circuit；
The filter circuit of the radiofrequency signal transmission circuit is connected by the described second adjustable match circuit with the antenna；
The processor is additionally operable to according to the temperature value, by the match control circuit at least radio frequency all the way
The match parameter of second adjustable match circuit of signal transmitting and receiving circuit is controlled.
Further, the temperature value is that described first is adjustable according at different temperatures with match parameter corresponding relation
Adjacent channel leakage ratio of radiofrequency signal transmission circuit is carried out within a preset range where the match parameter of match circuit causes it
Setting.
A kind of communication terminal, including adjustable RF circuit, the adjustable RF circuit include RF transceiver, power amplification
Device, antenna, at least radiofrequency signal transmission circuit, temperature detector, processor and match control circuit all the way；
The radiofrequency signal transmission circuit includes the first adjustable match circuit and filter circuit；
The RF transceiver is connected with the power amplifier, and the power amplifier passes sequentially through each radio frequency letter
First adjustable match circuit and filter circuit of number transmission circuit is connected to form radiofrequency signal transmitting-receiving path with the antenna；
The temperature detector is used for the temperature for detecting the power amplifier, and the temperature value detected is issued into described
Processor；
The processor is used for according to the temperature value, by the match control circuit at least the radio frequency is believed all the way
The match parameter of first adjustable match circuit of number transmission circuit is controlled.
Further, the processor is used to default temperature value enter the temperature value with match parameter corresponding relation
Row matching, obtains object matching parameter corresponding with the temperature value, is penetrated by the match control circuit at least described all the way
The match parameter of first adjustable match circuit of frequency signal transmitting and receiving circuit is adjusted to the object matching parameter.
Further, the radiofrequency signal transmission circuit also includes the second adjustable match circuit；
The filter circuit of the radiofrequency signal transmission circuit is connected by the described second adjustable match circuit with the antenna；
The processor is additionally operable to according to the temperature value, by the match control circuit at least radio frequency all the way
The match parameter of second adjustable match circuit of signal transmitting and receiving circuit is controlled.
A kind of control method of adjustable RF circuit as described above, including：
Detect the temperature of the power amplifier of the adjustable RF circuit；
According to the temperature value detected, at least the first of radiofrequency signal transmission circuit all the way of the adjustable RF circuit
The match parameter of adjustable match circuit is controlled.
Beneficial effect
Adjustable RF circuit, communication terminal and adjustable RF circuit control method that the present invention is provided, including radio-frequency receiving-transmitting
Device, power amplifier, antenna, at least radiofrequency signal transmission circuit all the way, temperature detector, processor and match control electricity
Road, radiofrequency signal transmission circuit includes the first adjustable match circuit and filter circuit；Power amplifier passes sequentially through each radio frequency letter
First adjustable match circuit and filter circuit of number transmission circuit is connected to form radiofrequency signal transmitting-receiving path with antenna；Temperature detection
Device detects the temperature of power amplifier, and processor is used to, according to the temperature value detected, believe radio frequency by match control circuit
The match parameter of first adjustable match circuit of number transmission circuit is controlled, therefore can cause road radiofrequency signal transmitting-receiving electricity
The ACLR on road is provided as the change of power amplifier operating temperature carries out corresponding dynamic adjustment with meeting communication protocol, it is to avoid
Very big interference is likely to result in, or even the situation of the capacity of the whole communication system of reduction occurs, it is ensured that communication quality, lift user
Experience.
Brief description of the drawings
Fig. 1 is a kind of radio frequency structure schematic diagram；
Fig. 2 is the adjustable RF circuit structural representation one that the embodiment of the present invention one is provided；
Fig. 3 is the adjustable RF circuit structural representation two that the embodiment of the present invention one is provided；
Fig. 4 is the adjustable RF circuit structural representation three that the embodiment of the present invention one is provided；
Fig. 5 is the adjustable RF circuit control method schematic flow sheet that the embodiment of the present invention two is provided；
Fig. 6 is the communication terminal structural representation that the embodiment of the present invention three is provided；
Fig. 7 is the adjustable RF circuit structural representation that the embodiment of the present invention three is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment in the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment one：
Shown in Figure 2, the adjustable RF circuit in the present embodiment includes RF transceiver, power amplifier, antenna,
At least radiofrequency signal transmission circuit, temperature detector, processor and match control circuit all the way；Wherein penetrating in the present embodiment
The radiofrequency signal that frequency signal transmitting and receiving circuit is used for the radiofrequency signal to sending and received from antenna is handled, the processing bag
Include but be not limited to filtering process, the radiofrequency signal transmission circuit in the present embodiment includes the first adjustable match circuit and filtered electrical
Road；RF transceiver is connected with power amplifier, and it is first adjustable that power amplifier passes sequentially through each radiofrequency signal transmission circuit
Match circuit and filter circuit are connected to form radiofrequency signal transmitting-receiving path with antenna；Specifically, the tunable radio frequency in the present embodiment
Circuit may also include RF switch and coupler, and coupler is directly connected with antenna, and RF switch is directly connected with coupler,
Each road radiofrequency signal transmission circuit is then arranged between power amplifier and RF switch.
Different radiofrequency signal transmission circuits can correspond to different frequency ranges, therefore radiofrequency signal transmitting-receiving electricity in the present embodiment
The communications band that the specific quantity in road can be used as needed is flexibly set.
In the present embodiment, when adjustable RF circuit includes at least two-way radiofrequency signal transmission circuit, each radiofrequency signal transmitting-receiving
Circuit can be the transmission circuit of fdd mode or tdd mode, can also be partly fdd mode, be partly tdd mode, specifically may be used
Flexibly to be set according to communication requirement, for the radiofrequency signal transmission circuit of fdd mode, filter circuit needs to realize duplexer work(
Can, namely need one path filter of each setting on transmitting chain and receives link.
Shown in Figure 2, temperature detector is used for the temperature for detecting power amplifier in the present embodiment, and will detect
Temperature value issue processor.It is worth noting that, different according to the type of the temperature detector of selection in the present embodiment, its with
The annexation of power amplifier can also correspondent transform, can for example be directly connected to (including directly connect with power amplifier
Touch), it can not also be directly connected to power amplifier.
Processor in the present embodiment is received after the temperature value of temperature detector transmission, can pass through match control circuit
To at least the match parameter of the first of radiofrequency signal transmission circuit the adjustable match circuit is controlled all the way.Specifically to which radio frequency
The match parameter of first adjustable match circuit of signal transmitting and receiving circuit is controlled and can flexibly selected according to concrete application scene,
For example, in order to ensure that each corresponding singal reporting code of radiofrequency signal transmission circuit can be met in corresponding requirement, the present embodiment
Processor can be specifically for can to the first of each radiofrequency signal transmission circuit by match control circuit according to the temperature value
The match parameter of match circuit is adjusted to be controlled accordingly.
In the present embodiment processor according to the temperature value of power amplifier to first adjustable of radiofrequency signal transmission circuit
The purpose that match parameter with circuit is controlled can be in order that the ACLR of get Gai roads radiofrequency signal transmission circuit meets logical
Believe agreement regulation, it is to avoid be likely to result in very big interference, or even the situation of the capacity of the whole communication system of reduction occurs, it is ensured that it is logical
Believe quality.The match parameter of the first adjustable match circuit can certainly be adjusted for other singal reporting codes.Namely
Processor in the present embodiment can be according to the temperature value of power amplifier to radiofrequency signal transmission circuit the first adjustable matching
The match parameter of circuit is adjusted, to ensure that the corresponding singal reporting code of circuit meets related request.Therefore, in the present embodiment,
Temperature value and match parameter corresponding relation, temperature value namely work(herein can be set previously according to the requirement of related communication index
The operating temperature value of rate amplifier.Then processor is after the temperature value of detection is received, by the temperature value and default temperature
Value is matched with match parameter corresponding relation, obtains object matching parameter corresponding with the temperature value, and then control by matching
Circuit processed is at least the match parameter of the first of radiofrequency signal transmission circuit the adjustable match circuit is adjusted to object matching ginseng all the way
Number.
For example, when the singal reporting code is ACLR, temperature value can be according in different temperatures with match parameter corresponding relation
Under, adjacent channel leakage ratio of radiofrequency signal transmission circuit is default where the match parameter of the first adjustable match circuit causes it
In the range of set, the preset range can be scope as defined in various communication protocols, such as prescribed limit in 3GPP agreements
Deng.In order to be better understood from the present invention, below by taking ACLR as an example, it is to the setting up procedure of temperature value and match parameter corresponding relation
Example is illustrated.Concrete implementation process is as follows：
(1) temperature detector of power amplifier carries out temperature detection to the power amplifier of work, and records power
The operational temperature curve of amplifier, then carries out the debugging work of radio frequency matching circuit according to the operational temperature curve of power amplifier
Make, such as a kind of debugging process of example is as follows：
(2) the operating temperature maximum and minimum value of power amplifier are marked, it is assumed for example that be 25 degree to 65 degree, by this
Individual temperature range is divided into several temperature minizones (such as 4, specifically can flexibly divide), takes the centre of each temperature minizone
Temperature value carries out the debugging efforts of radio frequency matching circuit；
(3) assume that the interim temperature value taken is 35 degree, the terminal (such as mobile phone) with adjustable RF circuit is placed on
35 degree are arranged in incubator and by environment temperature, in this case, match control circuit adjusts power according to temperature now
First adjustable match circuit of amplifier rear end, 3GPP standards are reached by ACLR index, can be preferably higher than 3GPP standards, be stayed
There is surplus.And the match parameter mixed up is subjected to record preservation, to call below；
(4) after the match parameter of each temperature minizone is modulated, by all match parameters and power amplification
Device operating temperature is mapped, it is ensured that match parameter and the operating temperature of power amplifier are corresponded, and in different temperature
Call different match parameters in degree interval；The temperature value thus obtained and match parameter corresponding relation；
(5) after temperature value and match parameter corresponding relation is obtained, all parameters are all stored in local for tune
With normal in use, the temperature detector of power amplifier first detects the operating temperature value of power amplifier, power is put
The operating temperature value of big device feeds back to processor, processor by it with contrasting the temperature parameter kept, further according to temperature with
The corresponding relation of match parameter goes to call different match parameters and by match control circuit according to the match parameter pair called
The match parameter of first adjustable match circuit carries out corresponding adjustment, it is ensured that the ACLR indexs of radio frequency meet commissioning requirements.
In above-mentioned debugging process, it can be directed to and set a temperature value with matching ginseng per radiofrequency signal transmission circuit all the way
Number corresponding relation, a corresponding relation can be shared in each road radiofrequency signal transmission circuit or portion radio frequency signal transmitting and receiving circuit
When, for these radiofrequency signal transmission circuits, one shared temperature value and match parameter corresponding relation can be then set.
It should be appreciated that the first adjustable match circuit in the present embodiment specifically can be adjustable from various match parameters
Matching network circuit, can be for example the LC match circuits comprising controllable impedance and tunable capacitor, and can specifically select π
Any one in type, T-shaped, L-type, double LL types etc. or two or more LC match circuits.For example can all it select as π types.This
When the present embodiment in the inductance value of match parameter including controllable impedance and the capacitance of tunable capacitor at least one, one
In a little debugging examples, then inductance value and capacitance can be included, namely inductance value and capacitance are adjusted simultaneously.
Shown in Figure 3, each radiofrequency signal transmission circuit in the present embodiment may also include the second adjustable match circuit,
The filter circuit of radiofrequency signal transmission circuit is connected by the second adjustable match circuit with antenna, passes through the second adjustable match circuit
The convergence of a filter circuit can be adjusted.In some instances, the second adjustable match circuit is it can also be provided that non-adjustable
Match circuit, as long as the current match parameter of match circuit set can meet the convergence requirement of filter circuit.
It is shown in Figure 4, in the present embodiment, in order to ensure the corresponding singal reporting code of radiofrequency signal transmission circuit with
The satisfaction for changing also dynamic of the temperature value of power amplifier accordingly refers to requirement, except at least radiofrequency signal receives and dispatches electricity all the way
Outside the match parameter of the first adjustable match circuit on road is adjusted, it can also pass through to match and control according to the temperature value detected
Circuit processed is also controlled to the match parameter of the second adjustable match circuit of respective radio-frequency signals transmission circuit.Now, pre-
When temperature value first being set with match parameter corresponding relation, then contain temperature value and the first adjustable match circuit and second are adjustable
The match parameter of the corresponding relation of the match parameter of match circuit, the first adjustable match circuit and the second adjustable match circuit can be with
It is identical, can also be different, specifically can flexibly it be set according to concrete application demand.
It should be appreciated that the second adjustable match circuit in the present embodiment specifically can also can from various match parameters
The matching network circuit of tune, for example, can be the LC match circuits comprising controllable impedance and tunable capacitor, and can specifically select π
Any one in type, T-shaped, L-type, double LL types etc. or two or more LC match circuits.For example can all it select as π types.This
When the present embodiment in the inductance value of match parameter including controllable impedance and the capacitance of tunable capacitor at least one, one
In a little debugging examples, then inductance value and capacitance can be included, namely inductance value and capacitance are adjusted simultaneously.
The match circuit of the radiofrequency signal transmission circuit of radio circuit is set to adjustable match circuit by the present embodiment, then
The operating temperature value of power amplifier is detected in the course of the work, according to of the operating temperature value to radiofrequency signal transmission circuit
Match parameter with circuit is controlled, therefore the ACLR of the road radiofrequency signal transmission circuit can be caused with power amplifier
The change of operating temperature carries out corresponding dynamic adjustment to meet communication protocol regulation, it is to avoid be likely to result in very big interference, very
Situation to the capacity for reducing whole communication system occurs, it is ensured that communication quality, lifts Consumer's Experience.
Embodiment two：
A kind of control method of adjustable RF circuit is present embodiments provided, the control method is applied to shown in embodiment one
Adjustable RF circuit, control process is shown in Figure 5, including：
S501：Detect the temperature of the power amplifier of adjustable RF circuit.
The step can specifically detect that specific detection is advised by temperature detector to the operating temperature of power amplifier
Then can flexibly it be set according to real needs.Processor can be issued after temperature value by the temperature value by detecting.
S502：According to the temperature value detected, at least the of radiofrequency signal transmission circuit all the way of adjustable RF circuit
The match parameter of one adjustable match circuit is controlled.
Processor is received after the temperature value of temperature detector transmission in the step, can be exchanged by match control circuit
Radio circuit at least the match parameter of the first of radiofrequency signal transmission circuit the adjustable match circuit is controlled all the way, specific control
Process processed can be using the process shown in embodiment one.
In the present embodiment, in order that obtaining the singal reporting code of radiofrequency signal transmission circuit, such as ACLR, which is met, accordingly will
Ask, at least the second of radiofrequency signal transmission circuit the adjustable matching all the way of radio circuit can also be exchanged by match control circuit
The match parameter of circuit is controlled, and specific control process can also be using the process shown in embodiment one.It will not be repeated here.
Adjustable RF circuit in the present embodiment can be arranged in the communication terminal of any radio communication, above-mentioned to control
Cheng Ze can be as shown in communication terminal based on embodiment one adjustable RF circuit carry out.
Embodiment three：
Present embodiments provide a kind of communication terminal, it is shown in Figure 6, including the communication terminal include input and output (IO)
Bus, processor, power supply, memory and communicator, wherein：
Input and output (IO) bus (such as processor, power supply, is deposited with other parts of the user equipment belonging to itself respectively
Reservoir and communicator connection, and provide transmission lines for other parts.
Power supply is used for for the electric energy needed for each part offer work, it should be appreciated that the power supply in the present embodiment can also
It is external power supply.For example when user equipment is desktop computer, its power supply is exactly external power supply.Power supply shown in Fig. 6 is only
Only it is a kind of example.
Processor generally controls the overall operation of the user equipment belonging to itself.For example, computing device is calculated and confirmed
Deng operation.Wherein, processor can be central processing unit (CPU).
The software code that memory storage processor is readable, processor is executable, it, which is included, is used for control processor execution
The instruction (i.e. software perform function) of secondary link circuit resource dispatching distribution described herein.Memory can include at least one type
Storage medium, the storage medium include flash memory, hard disk, multimedia card, card-type memory (for example, SD or DX memories etc.
Deng), random access storage device (RAM), static random-access memory (SRAM), read-only storage (ROM), electric erasable can compile
Journey read-only storage (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc..
Communicator, generally includes one or more assemblies, its allow user equipment belonging to itself and base station or other
User equipment sets up radio communication.Communicator can include radio circuit, realize radio communication.Embodiment can specifically be included
Adjustable RF circuit shown in one, now adjustable RF circuit and terminal can share a processor, can also be used alone
One processor.
Now the temperature value in the present embodiment can be stored in memory with parameter corresponding relation, and in the memory also
The control process of adjustable RF circuit can be performed with store code.Specifically, temperature detector is to power amplifier
Operating temperature is detected that specific detected rule can flexibly be set according to real needs, and detecting after temperature value can be by
The temperature value issues processor.Processor is received after the temperature value of temperature detector transmission, calls code to perform the temperature
Value match obtaining corresponding object matching parameter with temperature value and parameter corresponding relation, then passes through match control circuit pair
Adjust radio circuit at least the match parameter of the first of radiofrequency signal transmission circuit the adjustable match circuit is controlled and makes it all the way
It is consistent with object matching parameter.
In the present embodiment, in order that obtaining the singal reporting code of radiofrequency signal transmission circuit, such as ACLR, which is met, accordingly will
Ask, processor is received after the temperature value of temperature detector transmission, can also call code to exchange radio frequency by match control circuit
Circuit at least the match parameter of the second of radiofrequency signal transmission circuit the adjustable match circuit is controlled all the way.
Shown in Figure 7, a kind of structure of the adjustable RF circuit of example includes RF transceiver, work(in the present embodiment
Rate amplifier, RF switch, coupler and antenna, wherein antenna are connected with coupler, and coupler is connected with RF switch, are penetrated
Connected between frequency switch and power amplifier by three tunnel radiofrequency signal transmission circuits, wherein the electricity of two-way radiofrequency signal transmitting-receiving above
Road works in fdd mode, and bottom radiofrequency signal transmission circuit all the way works in tdd mode.Two-way radiofrequency signal includes above
Duplexer, is provided with the first adjustable match circuit (being specially the LC match circuits of π types) between power amplifier and duplexer, double
There is the second adjustable match circuit (being also specifically the LC match circuits of π types) between work device and RF switch；Bottom is penetrated all the way
Frequency signal includes wave filter, and it (is specially LC of π types that the first adjustable match circuit is provided between power amplifier and wave filter
With circuit), there is the second adjustable match circuit (being also specifically the LC match circuits of π types) between wave filter and RF switch.Work(
Match circuit also is provided between rate amplifier and RF transceiver, the match circuit can also be adjustable match circuit.
Shown in Figure 7, adjustable RF circuit also includes power-sensing circuit, for being mainly used in detection circuit
Power, shield.Also include temperature detector and match control circuit, temperature detector is used for power amplifier
Operating temperature detected that specific detected rule can flexibly be set according to real needs.Detecting after temperature value can be with
The temperature value is issued into processor.Processor is received after the temperature value of temperature detector transmission, calls code to perform the temperature
Angle value match obtaining corresponding object matching parameter with temperature value and parameter corresponding relation, then passes through match control circuit
Exchange radio circuit at least the match parameter of the first of radiofrequency signal transmission circuit the adjustable match circuit is controlled and made all the way
It is consistent with object matching parameter.Therefore the ACLR of the road radiofrequency signal transmission circuit can be caused as power amplifier works
The change of temperature carries out corresponding dynamic adjustment to meet communication protocol regulation, it is to avoid be likely to result in very big interference, or even drop
The situation of the capacity of low whole communication system occurs, it is ensured that communication quality, lifts Consumer's Experience.
It should be noted that for foregoing each embodiment, in order to be briefly described, therefore it is all expressed as a series of dynamic
Combine, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because foundation
The present invention, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, say
Embodiment described in bright book belongs to preferred embodiment, and involved action and module not necessarily present invention institute are necessary
's.
In several embodiments provided herein, it should be understood that disclosed user equipment or base station be only
Schematically, for example the division of described module, only a kind of division of logic function can have other division when actually realizing
Mode, such as multiple module or components can combine or be desirably integrated into another system, or some features can be ignored, or
Do not perform.
In addition, each functional module in various embodiments of the present invention can be integrated in a processing unit, also may be used
To be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
Herein, term " first ", " second " and " the 3rd " etc. is to be used to distinguish different objects, special not for description
Fixed order.Term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that including
Process, method, article or the device of a series of key elements not only include those key elements, but also its including being not expressly set out
His key element, or also include for this process, method, article or the intrinsic key element of device.In not more limitations
In the case of, the key element limited by sentence "including a ...", it is not excluded that the process including the key element, method, article or
Also there is other identical element in person's device.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are to cause a station terminal equipment (can be mobile phone, computer, clothes
It is engaged in device, air conditioner, or network equipment etc.) perform method described in each embodiment of the invention.
Above content is to combine specific embodiment further description made for the present invention, it is impossible to assert this hair
Bright specific implementation is confined to these explanations.For general technical staff of the technical field of the invention, do not taking off
On the premise of from present inventive concept, some simple deduction or replace can also be made, the protection of the present invention should be all considered as belonging to
Scope.
Claims (10)
1. a kind of adjustable RF circuit, it is characterised in that including RF transceiver, power amplifier, antenna, at least radio frequency all the way
Signal transmitting and receiving circuit, temperature detector, processor and match control circuit；
The radiofrequency signal transmission circuit includes the first adjustable match circuit and filter circuit；
The RF transceiver is connected with the power amplifier, and the power amplifier passes sequentially through each radiofrequency signal and received
First adjustable match circuit and filter circuit of Power Generation Road is connected to form radiofrequency signal transmitting-receiving path with the antenna；
The temperature detector is used for the temperature for detecting the power amplifier, and the temperature value detected is issued into the processing
Device；
The processor is used for according to the temperature value, by the match control circuit at least the radiofrequency signal is received all the way
The match parameter of first adjustable match circuit of Power Generation Road is controlled.
2. adjustable RF circuit as claimed in claim 1, it is characterised in that the first adjustable match circuit is comprising adjustable
The LC match circuits of inductance and tunable capacitor, the match parameter includes the inductance value of the controllable impedance and the electricity of tunable capacitor
At least one in capacitance.
3. adjustable RF circuit as claimed in claim 1, it is characterised in that the processor is used for according to the temperature value,
The match parameter of the first adjustable match circuit of each radiofrequency signal transmission circuit is carried out by the match control circuit
Control.
4. the adjustable RF circuit as described in claim any one of 1-3, it is characterised in that the processor is used for the temperature
Angle value is matched with default temperature value with match parameter corresponding relation, obtains object matching ginseng corresponding with the temperature value
Number, by the match control circuit at least matching of the first adjustable match circuit of the radiofrequency signal transmission circuit all the way
Parameter adjustment is the object matching parameter.
5. the adjustable RF circuit as described in claim any one of 1-3, it is characterised in that the radiofrequency signal transmission circuit is also
Including the second adjustable match circuit；
The filter circuit of the radiofrequency signal transmission circuit is connected by the described second adjustable match circuit with the antenna；
The processor is additionally operable to according to the temperature value, by the match control circuit at least radiofrequency signal all the way
The match parameter of second adjustable match circuit of transmission circuit is controlled.
6. adjustable RF circuit as claimed in claim 4, it is characterised in that the temperature value is with match parameter corresponding relation
According at different temperatures, the match parameter of the first adjustable match circuit causes the phase of its place radiofrequency signal transmission circuit
Adjacent channel leakage is than within a preset range being set.
7. a kind of communication terminal, it is characterised in that including adjustable RF circuit, the adjustable RF circuit includes radio-frequency receiving-transmitting
Device, power amplifier, antenna, at least radiofrequency signal transmission circuit all the way, temperature detector, processor and match control electricity
Road；
The radiofrequency signal transmission circuit includes the first adjustable match circuit and filter circuit；
The RF transceiver is connected with the power amplifier, and the power amplifier passes sequentially through each radiofrequency signal and received
First adjustable match circuit and filter circuit of Power Generation Road is connected to form radiofrequency signal transmitting-receiving path with the antenna；
The temperature detector is used for the temperature for detecting the power amplifier, and the temperature value detected is issued into the processing
Device；
The processor is used for according to the temperature value, by the match control circuit at least the radiofrequency signal is received all the way
The match parameter of first adjustable match circuit of Power Generation Road is controlled.
8. communication terminal as claimed in claim 7, it is characterised in that the processor be used for by the temperature value with it is default
Temperature value is matched with match parameter corresponding relation, is obtained object matching parameter corresponding with the temperature value, is passed through described
With control circuit at least the match parameter of the first adjustable match circuit of the radiofrequency signal transmission circuit is adjusted to institute all the way
State object matching parameter.
9. communication terminal as claimed in claim 7 or 8, it is characterised in that the radiofrequency signal transmission circuit also includes second
Adjustable match circuit；
The filter circuit of the radiofrequency signal transmission circuit is connected by the described second adjustable match circuit with the antenna；
The processor is additionally operable to according to the temperature value, by the match control circuit at least radiofrequency signal all the way
The match parameter of second adjustable match circuit of transmission circuit is controlled.
10. a kind of control method of adjustable RF circuit as described in claim any one of 1-6, it is characterised in that including：
Detect the temperature of the power amplifier of the adjustable RF circuit；
According to the temperature value detected, at least the first of radiofrequency signal transmission circuit adjustable all the way of the adjustable RF circuit
The match parameter of match circuit is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108975.XA CN107086879A (en) | 2017-02-27 | 2017-02-27 | Adjustable RF circuit, communication terminal and adjustable RF circuit control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108975.XA CN107086879A (en) | 2017-02-27 | 2017-02-27 | Adjustable RF circuit, communication terminal and adjustable RF circuit control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107086879A true CN107086879A (en) | 2017-08-22 |
Family
ID=59614320
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108975.XA Pending CN107086879A (en) | 2017-02-27 | 2017-02-27 | Adjustable RF circuit, communication terminal and adjustable RF circuit control method |
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| CN (1) | CN107086879A (en) |
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| CN107707268A (en) * | 2017-11-02 | 2018-02-16 | 深圳市金立通信设备有限公司 | A kind of antenna circuit, radio circuit and terminal that can suppress harmonic wave |
| CN108988897A (en) * | 2018-07-25 | 2018-12-11 | 深圳市桑达无线通讯技术有限公司 | A kind of railway LTE-R radio communication terminal |
| CN110708089A (en) * | 2019-09-23 | 2020-01-17 | 广州慧智微电子有限公司 | Radio frequency front end architecture |
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| CN113141187A (en) * | 2021-04-26 | 2021-07-20 | 深圳市广和通无线股份有限公司 | Tuning matching control circuit, method and related equipment |
| CN113242079A (en) * | 2021-04-20 | 2021-08-10 | 中国电子科技集团公司第五十四研究所 | Terminal based on satellite broadband data communication |
| CN117459013A (en) * | 2023-12-22 | 2024-01-26 | 深圳新声半导体有限公司 | On-chip impedance matching network, method, radio frequency receiving circuit and transmitting circuit |
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