CN112073085A - Radio frequency circuit, electronic equipment and radio frequency control method - Google Patents
Radio frequency circuit, electronic equipment and radio frequency control method Download PDFInfo
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- CN112073085A CN112073085A CN202010913856.3A CN202010913856A CN112073085A CN 112073085 A CN112073085 A CN 112073085A CN 202010913856 A CN202010913856 A CN 202010913856A CN 112073085 A CN112073085 A CN 112073085A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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- 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
- H04B1/0064—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 with separate antennas for the more than one band
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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
Abstract
The application provides a radio frequency circuit, electronic equipment and a radio frequency control method, wherein the radio frequency circuit comprises a first power supply, a second power supply, a first change-over switch, a second change-over switch, a first radio frequency module and a second radio frequency module; the first end of the first change-over switch is connected with the first power supply, the second end of the first change-over switch is connected with the first radio frequency module, and the third end of the first change-over switch is connected with the second change-over switch; the first end of the second change-over switch is connected with the second radio frequency module, the second end of the second change-over switch is connected with the first change-over switch, and the third end of the second change-over switch is connected with the second power supply; the first power supply is an average power tracking power supply, and the second power supply is used for outputting a preset voltage. According to the embodiment of the application, the probability that the WIFI radio frequency module generates second harmonic when the WIFI radio frequency module transmits radio frequency signals and passes through non-linear devices such as a power amplifier and the like can be reduced, the mutual interference among different radio frequency signals of the WIFI radio frequency module is reduced, and therefore the radio frequency communication quality can be improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency circuit, an electronic device, and a radio frequency control method.
Background
With the development of communication technology, the frequency range of radio frequency communication performed by a radio frequency device in electronic equipment is wider and wider, and when radio frequency communication is performed, if a radio frequency signal generates a second harmonic, the frequency range of the generated second harmonic may overlap with the frequency ranges of other radio frequency signals, so that different radio frequency signals are often easily interfered with each other, and the radio frequency communication quality is poor. At present, the WIFI radio frequency module adopts fixed voltage power supply, and the WIFI radio frequency module adopting the fixed voltage power supply easily generates second harmonic when transmitting radio frequency signals and passes through nonlinear devices such as a power amplifier, so that different radio frequency signals of the WIFI radio frequency module are easily interfered with each other, and the radio frequency communication quality is poor.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit, an electronic device and a radio frequency control method, and can solve the problem that in the prior art, different radio frequency signals of a WIFI radio frequency module are easy to interfere with each other, so that the radio frequency communication quality is poor.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present application provides a radio frequency circuit, where the radio frequency circuit includes a first power supply, a second power supply, a first switch, a second switch, a first radio frequency module, and a second radio frequency module;
a first end of the first switch is connected with the first power supply, a second end of the first switch is connected with the first radio frequency module, and a third end of the first switch is connected with the second switch;
a first end of the second switch is connected with the second radio frequency module, a second end of the second switch is connected with the first switch, and a third end of the second switch is connected with the second power supply;
the first switch is used for controlling the conduction of a first end and a second end of the first switch, or controlling the conduction of the first end and a third end of the first switch; the second switch is used for controlling the conduction of a first end and a second end of the second switch, or controlling the conduction of the first end and a third end of the second switch;
the first power supply is an average power tracking power supply, and the second power supply is used for outputting a preset voltage.
In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes a processor and the radio frequency circuit according to the first aspect of the embodiment of the present application, and the radio frequency circuit is connected to the processor.
In a third aspect, an embodiment of the present application provides a radio frequency control method, where the radio frequency control method is applied to the radio frequency circuit in the first aspect, and the method includes:
under the condition that the second radio frequency module works, judging whether the first radio frequency module works or not;
if the first radio frequency module does not work, controlling the first power supply to supply power to the second radio frequency module;
and if the first radio frequency module works, controlling the second power supply to supply power to the second radio frequency module.
In the embodiment of the application, the radio frequency circuit comprises a first power supply, a second power supply, a first change-over switch, a second change-over switch, a first radio frequency module and a second radio frequency module; a first end of the first switch is connected with the first power supply, a second end of the first switch is connected with the first radio frequency module, and a third end of the first switch is connected with the second switch; a first end of the second switch is connected with the second radio frequency module, a second end of the second switch is connected with the first switch, and a third end of the second switch is connected with the second power supply; the first switch is used for controlling the conduction of a first end and a second end of the first switch, or controlling the conduction of the first end and a third end of the first switch; the second switch is used for controlling the conduction of a first end and a second end of the second switch, or controlling the conduction of the first end and a third end of the second switch; the first power supply is an average power tracking power supply, and the second power supply is used for outputting a preset voltage. Therefore, the average power tracking power supply can supply power to the WIFI radio frequency module through the radio frequency circuit, the average power tracking power supply can improve the linearity of nonlinear devices such as a power amplifier in the WIFI radio frequency module, the probability that the WIFI radio frequency module generates second harmonic when the WIFI radio frequency module transmits radio frequency signals and passes through the nonlinear devices such as the power amplifier is reduced, the mutual interference among different radio frequency signals of the WIFI radio frequency module is reduced, and the radio frequency communication quality can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure;
fig. 2 is a second schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;
fig. 3 is a third schematic diagram illustrating a structure of a radio frequency circuit according to an embodiment of the present application;
fig. 4 is a fourth schematic structural diagram of an rf circuit according to an embodiment of the present disclosure;
fig. 5 is a schematic flowchart of a radio frequency control method according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an rf control device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The radio frequency circuit provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency circuit provided in an embodiment of the present application, and as shown in fig. 1, the radio frequency circuit includes a first power supply 1, a second power supply 2, a first switch 3, a second switch 4, a first radio frequency module 5, and a second radio frequency module 6;
a first end of the first switch 3 is connected with the first power supply 1, a second end of the first switch 3 is connected with the first radio frequency module 5, and a third end of the first switch 3 is connected with the second switch 4;
a first end of the second switch 4 is connected to the second rf module 6, a second end of the second switch 4 is connected to the first switch 3, and a third end of the second switch 4 is connected to the second power supply 2;
the first switch 3 is used for controlling the first end and the second end of the first switch 3 to be conducted, or controlling the first end and the third end of the first switch 3 to be conducted; the second switch 4 is configured to control a first end and a second end of the second switch 4 to be conducted, or control a first end and a third end of the second switch 4 to be conducted;
the first power supply 1 is an average power tracking power supply, and the second power supply 2 is configured to output a preset voltage.
The first rf module 5 may be a mobile communication rf module, for example, a 4G rf module or a 5G rf module, which is not limited in this embodiment. Second Radio Frequency Module 6 can be the WIFI Radio Frequency Module, and is concrete, can be WIFI Radio Frequency Front end Module (Radio Frequency Front-end Module, RF FEM), for example, can be 2.4G WIFI Radio Frequency Module or 5G WIFI Radio Frequency Module, and this embodiment does not restrict this. The first radio frequency module 5 and the second radio frequency module 6 are both connected with corresponding antennas.
In addition, the first rf module 5 may include one or more power amplifiers, and the second rf module 6 may include one or more power amplifiers.
In practical application, in the related art, the battery module outputs a fixed voltage to supply power to the WIFI radio frequency module, and when the output power of the WIFI radio frequency module is low, the supply voltage of the battery module to the WIFI radio frequency module is greater than the actually required voltage value of the WIFI radio frequency module, so that the efficiency of the WIFI radio frequency module is low, and the power consumption is large. In the embodiment of the application, the WIFI radio frequency module can be switched with the mobile communication radio frequency module through the first change-over switch 3 and the second change-over switch 4 to use the average power tracking power supply to supply power, and when the output power of the WIFI radio frequency module is lower, the average power tracking power supply also synchronously reduces the power supply voltage of the WIFI radio frequency module, so that the efficiency of the WIFI radio frequency module can be improved, and the power consumption can be reduced.
Further, taking the second radio frequency module 6 as a 2.4G WIFI radio frequency module as an example, the radio frequency circuit further includes a 5G WIFI radio frequency module, and the 5G WIFI radio frequency module is used for receiving and transmitting the radio frequency signal of the 5G WIFI channel. When transmitting a high-power signal in the related art, the performance of the power amplifier 61 of the 2.4G WIFI radio frequency module deteriorates, strong nonlinearity occurs, a strong 2-frequency multiplication (2nd) signal is generated and leaks to the 5G WIFI channel, and the strong 2-frequency multiplication signal is transmitted to the N79 channel through the 5G WIFI antenna to interfere the N79 frequency band, so that the sensitivity of the N79 frequency band is reduced. In the embodiment of the application, the 2.4G WIFI radio frequency module can be switched with the mobile communication radio frequency module through the first change-over switch 3 and the second change-over switch 4 to use the average power tracking power supply to supply power, so that the linearity of an amplifier in the 2.4G WIFI radio frequency module can be improved, the probability that the 2.4G WIFI radio frequency module generates second harmonic when transmitting radio frequency signals is reduced, and interference on a 5G WIFI access cannot be caused.
The power amplifier 61 requires a larger supply voltage as the input signal increases, and if the supply voltage does not satisfy the requirement, the amplification of the power amplifier 61 is distorted, resulting in strong nonlinearity. The linearity of the power amplifier 61 can be increased by reducing the input signal or increasing the supply voltage.
As a specific implementation manner, the first rf module 5 is a 4G rf module, the second rf module 6 is a 2.4G WIFI rf module, and the first power supply 1 is an average power tracking power supply. Under 5G SA (independent networking) mode, 4G radio frequency module need not work, and first power 1 need not to give 4G radio frequency module power supply, can control first change over switch 3's first end switches on with the third end, and controls second change over switch 4's first end switches on with the second end for first power 1 is 2.4G WIFI radio frequency module power supply. Utilize the Boost function of average power tracking power, provide great voltage for 2.4G WIFI radio frequency module under the great condition of transmitted power to can improve the linearity of the amplifier in the 2.4G WIFI radio frequency module, reduce the probability that 2.4G WIFI radio frequency module produced the second harmonic when the transmitted radio frequency signal, reduce the interference to N79 frequency channel or other frequency channels.
It should be noted that, the first radio frequency module 5 may be a mobile communication radio frequency module, the second radio frequency module 6 may be a WIFI radio frequency module, thereby the WIFI radio frequency module and the mobile communication radio frequency module can be switched to use the average power tracking power supply to supply power through the first switch 3 and the second switch 4, the average power tracking power supply can adjust the supply voltage provided to the amplifier according to the output power of the amplifier in the WIFI radio frequency module, thereby the linearity of the amplifier in the WIFI radio frequency module can be improved, the probability that the WIFI radio frequency module generates a second harmonic when transmitting a radio frequency signal is reduced, the mutual interference between different radio frequency signals of the WIFI radio frequency module is reduced, and the radio frequency communication quality can be improved.
In addition, the Average Power Tracking (APT) Power supply can adjust the output voltage of the APT Power supply following the output Power level. For example, the first power source 1 may be QET5100 or QET6100, and the like, which is not limited in this embodiment. The second power source 2 may be a battery module, and the preset voltage may be 3.5V, 4V, 5V, or the like. The output voltage of the battery module can only slightly fluctuate along with the electric quantity of the battery module and is uncontrollable.
In the embodiment of the present application, the radio frequency circuit includes a first power supply 1, a second power supply 2, a first switch 3, a second switch 4, a first radio frequency module 5, and a second radio frequency module 6; a first end of the first switch 3 is connected with the first power supply 1, a second end of the first switch 3 is connected with the first radio frequency module 5, and a third end of the first switch 3 is connected with the second switch 4; a first end of the second switch 4 is connected to the second rf module 6, a second end of the second switch 4 is connected to the first switch 3, and a third end of the second switch 4 is connected to the second power supply 2; the first switch 3 is used for controlling the first end and the second end of the first switch 3 to be conducted, or controlling the first end and the third end of the first switch 3 to be conducted; the second switch 4 is configured to control a first end and a second end of the second switch 4 to be conducted, or control a first end and a third end of the second switch 4 to be conducted; the first power supply 1 is an average power tracking power supply, and the second power supply 2 is configured to output a preset voltage. Therefore, the average power tracking power supply can supply power to the WIFI radio frequency module through the radio frequency circuit, the average power tracking power supply can improve the linearity of nonlinear devices such as a power amplifier in the WIFI radio frequency module, the probability that the WIFI radio frequency module generates second harmonic when the WIFI radio frequency module transmits radio frequency signals and passes through the nonlinear devices such as the power amplifier is reduced, the mutual interference among different radio frequency signals of the WIFI radio frequency module is reduced, and the radio frequency communication quality can be improved.
Optionally, the first switch 3 and/or the second switch 4 are single-pole double-throw switches.
Optionally, as shown in fig. 1, the second radio frequency module 6 includes a power amplifier 61, the radio frequency circuit further includes a power detection module 62, the power detection module 62 is connected to the power amplifier 61, and the power detection module 62 is configured to detect an output power of the power amplifier 61;
the power detection module 62 is further connected to the first power supply 1, and the first power supply 1 is configured to adjust an output voltage of the first power supply 1 according to the output power detected by the power detection module 62.
The power detection module 62 may be disposed in the second rf module 6, and is designed to be integrally formed with the second rf module 6; alternatively, the power detection module 62 may be provided as a separate module. The power detection module 62 may include a coupler.
Taking the second rf module 6 as a 2.4G WIFI rf module as an example, in the process that the first power supply 1 supplies power to the 2.4G WIFI rf module, the power detection module 62 feeds back an output signal to the second rf signal transceiver, and the power detection module 62 monitors the output power of the amplifier of the 2.4G WIFI rf module in real time. When the network environment changes, for example, the distance between the electronic device and the router changes, the output power of the amplifier is automatically adjusted. The power detection module 62 sends the detected power change signal of the output power to the second radio frequency signal transceiver, which sends the received power change signal to the processor. The processor sends the power change signal to the first power supply 1, the first power supply 1 adjusts the output voltage of the first power supply 1 according to the power change signal, and when the output power of the amplifier is increased, the output voltage is increased; when the output power of the amplifier becomes small, the output voltage is reduced.
In this embodiment, the first power supply 1 adjusts the output voltage of the first power supply 1 according to the output power detected by the power detection module 62, so that the power supply efficiency can be improved, and the power consumption can be reduced.
Optionally, the second radio frequency module 6 includes a 2.4G WIFI radio frequency module and/or a 5G WIFI radio frequency module.
The frequency bands of the radio frequency signals of the 2.4G WIFI radio frequency module and the 5G WIFI radio frequency module are different.
Optionally, the first rf module 5 includes a 4G rf module and/or a 5G rf module.
Optionally, the first radio frequency module 5 is a 4G radio frequency module, the radio frequency circuit further includes a third power supply and a 5G radio frequency module, the third power supply is an average power tracking power supply, and the third power supply is connected to the 5G radio frequency module.
In this embodiment, the rf circuit includes a 4G rf module and a 5G rf module, and is compatible with multi-generation mobile communication technologies, thereby improving mobile communication quality.
Optionally, the second radio frequency module 6 is a 2.4G WIFI radio frequency module, the radio frequency circuit further includes a 5G WIFI radio frequency module, and the 5G WIFI radio frequency module is connected to the second power supply 2.
In this embodiment, the radio frequency circuit includes 2.4G WIFI radio frequency module and 5G WIFI radio frequency module, can realize the WIFI radio frequency communication of a plurality of frequency channels to can improve wireless communication quality.
Optionally, the radio frequency circuit further includes a first radio frequency signal transceiver and a second radio frequency signal transceiver, the first radio frequency module 5 is connected to the processor through the first radio frequency signal transceiver, and the second radio frequency module 6 is connected to the processor through the second radio frequency signal transceiver.
In this embodiment, the different radio frequency signal transceivers respectively process the transceiving of the radio frequency signals of different radio frequency modules, so as to further improve the radio frequency communication quality.
As a specific implementation manner, as shown in fig. 1, the second rf module 6 is a 2.4G WIFI rf module, and the first rf module 5 is a 4G rf module. The radio frequency circuit further comprises a third power supply 7 and a 5G radio frequency module 8, wherein the third power supply 7 is an average power tracking power supply, and the third power supply 7 is connected with the 5G radio frequency module 8. The radio frequency circuit further comprises a 5G WIFI radio frequency module 9, and the 5G WIFI radio frequency module 9 is connected with the second power supply 2. This embodiment can improve the power amplifier's of 2.4G WIFI radio frequency module linearity.
As another specific implementation manner, as shown in fig. 2, the second rf module 6 is a 2.4G WIFI rf module, and the first rf module 5 is a 5G rf module. The radio frequency circuit further comprises a third power supply 7 and a 4G radio frequency module 10, wherein the third power supply 7 is an average power tracking power supply, and the third power supply 7 is connected with the 4G radio frequency module 10. The radio frequency circuit further comprises a 5G WIFI radio frequency module 9, and the 5G WIFI radio frequency module 9 is connected with the second power supply 2. This embodiment can improve the power amplifier's of 2.4G WIFI radio frequency module linearity.
As another specific implementation manner, as shown in fig. 3, the second rf module 6 is a 5G WIFI rf module, and the first rf module 5 is a 4G rf module. The radio frequency circuit further comprises a third power supply 7 and a 5G radio frequency module 8, wherein the third power supply 7 is an average power tracking power supply, and the third power supply 7 is connected with the 5G radio frequency module 8. The radio frequency circuit further comprises a 2.4G WIFI radio frequency module 11, and the 2.4G WIFI radio frequency module 11 is connected with the second power supply 2. This embodiment can improve 5G WIFI radio frequency module's power amplifier's linearity.
As another specific implementation manner, as shown in fig. 4, the second rf module 6 is a 5G WIFI rf module, and the first rf module 5 is a 5G rf module. The radio frequency circuit further comprises a third power supply 7 and a 4G radio frequency module 10, wherein the third power supply 7 is an average power tracking power supply, and the third power supply 7 is connected with the 4G radio frequency module 10. The radio frequency circuit further comprises a 2.4G WIFI radio frequency module 11, and the 2.4G WIFI radio frequency module 11 is connected with the second power supply 2. This embodiment can improve 5G WIFI radio frequency module's power amplifier's linearity.
The embodiment of the application further provides electronic equipment, the electronic equipment comprises a processor and the radio frequency circuit, and the radio frequency circuit is connected with the processor.
Since other structures of the electronic device are the prior art, and the radio frequency circuit has been described in detail in the foregoing embodiment, details of the structure of the electronic device in this embodiment are not repeated.
In the embodiment of the present application, the electronic device includes the radio frequency circuit, and the radio frequency circuit includes a first power supply 1, a second power supply 2, a first switch 3, a second switch 4, a first radio frequency module 5, and a second radio frequency module 6; a first end of the first switch 3 is connected with the first power supply 1, a second end of the first switch 3 is connected with the first radio frequency module 5, and a third end of the first switch 3 is connected with the second switch 4; a first end of the second switch 4 is connected to the second rf module 6, a second end of the second switch 4 is connected to the first switch 3, and a third end of the second switch 4 is connected to the second power supply 2; the first switch 3 is used for controlling the first end and the second end of the first switch 3 to be conducted, or controlling the first end and the third end of the first switch 3 to be conducted; the second switch 4 is configured to control a first end and a second end of the second switch 4 to be conducted, or control a first end and a third end of the second switch 4 to be conducted; the first power supply 1 is an average power tracking power supply, and the second power supply 2 is configured to output a preset voltage. Therefore, through the radio frequency circuit, under the condition that great cost is not spent, the average power tracking power supply can be used for supplying power to the WIFI radio frequency module, the average power tracking power supply can improve the linearity of nonlinear devices such as a power amplifier in the WIFI radio frequency module, the probability that the WIFI radio frequency module generates second harmonic when the WIFI radio frequency module transmits radio frequency signals and passes through the nonlinear devices such as the power amplifier is reduced, the mutual interference among different radio frequency signals of the WIFI radio frequency module is reduced, and the radio frequency communication quality of the electronic equipment can be improved.
Referring to fig. 5, fig. 5 is a schematic flowchart of a radio frequency control method according to an embodiment of the present application, where the radio frequency control method may be applied to a radio frequency circuit according to any one of fig. 1 to 4, as shown in fig. 5, the method includes:
The controlling of the first power source 1 to supply power to the second rf module 6 may be controlling the first end and the third end of the first switch 3 to be conducted, and controlling the first end and the second end of the second switch 4 to be conducted. The second power supply 2 is controlled to supply power to the second rf module 6, and may be controlled to conduct the first end and the second end of the first switch 3, and to conduct the first end and the third end of the second switch 4.
In practical application, taking the first radio frequency module 5 as a 4G radio frequency module and the second radio frequency module 6 as a 2.4G WIFI radio frequency module as an example, in a default state, the first power supply 1, i.e. the average power tracking power supply, can be controlled by the first switch 3 to supply power to the 4G radio frequency module; the second power supply 2 can be controlled to supply power to the 2.4G WIFI radio frequency module through the second change-over switch 4. The processor can judge whether the 2.4G WIFI radio frequency module works or not; under the condition that the 2.4G WIFI radio frequency module does not work, the default state is kept; under the condition that the 2.4G WIFI radio frequency module works, judging whether the 4G radio frequency module works or not; under the condition that the 2.4G WIFI radio frequency module works and the 4G radio frequency module works, the default state is kept; under the condition that the 2.4G WIFI radio frequency module works and the 4G radio frequency module does not work, the first end and the third end of the first change-over switch 3 are controlled to be conducted through the first change-over switch 3 and the second change-over switch 4, the first end and the second end of the second change-over switch 4 are controlled to be conducted, and therefore the first power supply 1 supplies power for the 2.4G WIFI radio frequency module.
In the embodiment of the present application, under the condition that the second radio frequency module 6 works, whether the first radio frequency module 5 works is determined; if the first radio frequency module 5 does not work, controlling the first power supply 1 to supply power to the second radio frequency module 6; and if the first radio frequency module 5 works, controlling the second power supply 2 to supply power to the second radio frequency module 6. Therefore, the average power tracking power supply can supply power to the WIFI radio frequency module, the average power tracking power supply can improve the linearity of nonlinear devices such as a power amplifier in the WIFI radio frequency module, the probability that the WIFI radio frequency module generates second harmonic when transmitting radio frequency signals and passes through the nonlinear devices such as the power amplifier is reduced, the mutual interference among different radio frequency signals of the WIFI radio frequency module is reduced, and the radio frequency communication quality of the electronic equipment can be improved.
It should be noted that, in the radio frequency control method provided in the embodiment of the present application, the execution main body may be a radio frequency control device, or a control module in the radio frequency control device for executing the radio frequency control method. In the embodiment of the present application, a method for a radio frequency control device to execute loading radio frequency control is taken as an example to describe the radio frequency control device provided in the embodiment of the present application.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an rf control device according to an embodiment of the present disclosure, where the rf control device may be applied to the rf circuit in any one of fig. 1 to 4, and as shown in fig. 6, the rf control device 200 may include:
a judging module 201, configured to judge whether the first radio frequency module operates under the condition that the second radio frequency module operates;
a first control module 202, configured to control the first power supply to supply power to the second radio frequency module if the first radio frequency module does not operate;
and the second control module 203 is configured to control the second power supply to supply power to the second radio frequency module if the first radio frequency module operates.
The radio frequency control device in the embodiment of the present application may be a device, and may also be a component, an integrated circuit, or a chip in a terminal.
The radio frequency control device provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 5, and is not described here again to avoid repetition.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A radio frequency circuit is characterized by comprising a first power supply, a second power supply, a first change-over switch, a second change-over switch, a first radio frequency module and a second radio frequency module;
a first end of the first switch is connected with the first power supply, a second end of the first switch is connected with the first radio frequency module, and a third end of the first switch is connected with the second switch;
a first end of the second switch is connected with the second radio frequency module, a second end of the second switch is connected with the first switch, and a third end of the second switch is connected with the second power supply;
the first switch is used for controlling the conduction of a first end and a second end of the first switch, or controlling the conduction of the first end and a third end of the first switch; the second switch is used for controlling the conduction of a first end and a second end of the second switch, or controlling the conduction of the first end and a third end of the second switch;
the first power supply is an average power tracking power supply, and the second power supply is used for outputting a preset voltage.
2. The radio frequency circuit according to claim 1, wherein the first switch and/or the second switch is a single-pole double-throw switch.
3. The RF circuit of claim 1, wherein the second RF module comprises a power amplifier, the RF circuit further comprising a power detection module, the power detection module is connected to the power amplifier, and the power detection module is configured to detect an output power of the power amplifier;
the power detection module is further connected with the first power supply, and the first power supply is used for adjusting the output voltage of the first power supply according to the output power detected by the power detection module.
4. The radio frequency circuit of claim 1, wherein the second radio frequency module comprises a 2.4G WIFI radio frequency module and/or a 5G WIFI radio frequency module.
5. The RF circuit of claim 1, wherein the first RF module comprises a 4G RF module and/or a 5G RF module.
6. The RF circuit of claim 4, wherein the first RF module is a 4G RF module, the RF circuit further comprising a third power supply and a 5G RF module, the third power supply being an average power tracking power supply, the third power supply being connected to the 5G RF module.
7. The radio frequency circuit of claim 5, wherein the second radio frequency module is a 2.4G WIFI radio frequency module, the radio frequency circuit further comprising a 5G WIFI radio frequency module, and the 5G WIFI radio frequency module is connected to the second power supply.
8. The RF circuit of claim 1, further comprising a first RF signal transceiver through which the first RF module is coupled to the processor and a second RF signal transceiver through which the second RF module is coupled to the processor.
9. An electronic device, comprising a processor and the radio frequency circuit of any one of claims 1 to 8, the radio frequency circuit being connected to the processor.
10. A radio frequency control method applied to the radio frequency circuit of any one of claims 1 to 8, the method comprising:
under the condition that the second radio frequency module works, judging whether the first radio frequency module works or not;
if the first radio frequency module does not work, controlling the first power supply to supply power to the second radio frequency module;
and if the first radio frequency module works, controlling the second power supply to supply power to the second radio frequency module.
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| CN114696867A (en) * | 2020-12-29 | 2022-07-01 | Oppo广东移动通信有限公司 | Radio frequency circuit, control method, communication device and terminal |
| WO2022143397A1 (en) * | 2020-12-30 | 2022-07-07 | 维沃移动通信有限公司 | Radio frequency system, power supply method for radio frequency system, and electronic device |
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| CN110890897A (en) * | 2019-11-19 | 2020-03-17 | 维沃移动通信有限公司 | Power supply circuit, power supply method and electronic equipment |
| CN111092621A (en) * | 2019-11-13 | 2020-05-01 | 维沃移动通信有限公司 | Radio frequency circuit, control method and electronic equipment |
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| US20120161877A1 (en) * | 2010-04-20 | 2012-06-28 | Rf Micro Devices, Inc. | Pa bias power supply efficiency optimization |
| CN111092621A (en) * | 2019-11-13 | 2020-05-01 | 维沃移动通信有限公司 | Radio frequency circuit, control method and electronic equipment |
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| CN114696867A (en) * | 2020-12-29 | 2022-07-01 | Oppo广东移动通信有限公司 | Radio frequency circuit, control method, communication device and terminal |
| WO2022143397A1 (en) * | 2020-12-30 | 2022-07-07 | 维沃移动通信有限公司 | Radio frequency system, power supply method for radio frequency system, and electronic device |
Also Published As
| Publication number | Publication date |
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| CN112073085B (en) | 2022-03-29 |
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