Voltage control method, voltage control device and radio frequency circuit

Abstract

This application discloses a voltage control method, a voltage control device, and a radio frequency (RF) circuit, belonging to the field of communications. The method includes: acquiring a first voltage value of an RF power amplifier at a first output power; the RF power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots, the supply voltage of the operating time slots being the first voltage value, and the supply voltage of the non-operating time slots being a second voltage value; during the operating time slots of the RF power amplifier, maintaining the supply voltage of the RF power amplifier at the first voltage value; during the non-operating time slots of the RF power amplifier, reducing the first voltage value to the second voltage value based on a preset voltage adjustment value, while maintaining the supply voltage of the RF power amplifier at the second voltage value; wherein the voltage adjustment value is not greater than the voltage difference corresponding to a preset capacitance sound value generated by the target detection capacitor.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a voltage control method, a voltage control device, and a radio frequency circuit. Background Technology

[0002] Time Division Duplexing (TDD) is a duplexing method in communication systems. In TDD mode, transmission and reception in a mobile communication system occur in different time slots on the same carrier, distinguished by scheduling signals for transmission in different time periods. Regarding power supply, the power amplifier (PA) typically uses different power supply voltages for the transmit / receive (Tx / Rx) time slots. Specifically, a higher power supply voltage is used in the Tx time slot to meet transmit power and performance requirements, while a lower, fixed voltage is used in the Rx time slot.

[0003] However, the supply voltage corresponding to the Tx time slot changes with the network environment, causing the voltage difference between the Tx and Rx time slots to also change. This voltage fluctuation generates an inverse piezoelectric effect, causing capacitor vibration, which in turn causes the motherboard to vibrate. When the terminal is in a call, a noticeable "humming" sound from the capacitor vibration on the motherboard can be heard, which is the capacitor noise during 4G / 5G calls, significantly impacting the user's call experience. Summary of the Invention

[0004] The purpose of this application is to provide a voltage control method, a voltage control device, and a radio frequency circuit that can solve the problem of capacitor acoustic interference during phone calls.

[0005] In a first aspect, embodiments of this application provide a voltage control method, including:

[0006] Obtain the first voltage value of the RF power amplifier at the first output power;

[0007] The radio frequency power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots, wherein the power supply voltage of the operating time slots is a first voltage value and the power supply voltage of the non-operating time slots is a second voltage value.

[0008] During the operating time slot of the RF power amplifier, the supply voltage of the RF power amplifier is maintained at a first voltage value; during the non-operating time slot of the RF power amplifier, the first voltage value is reduced to a second voltage value based on a preset voltage adjustment value, and the supply voltage of the RF power amplifier is maintained at the second voltage value; wherein, the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor.

[0009] Secondly, embodiments of this application provide a voltage control device, including:

[0010] A voltage value acquisition module is used to acquire a first voltage value of the radio frequency power amplifier at a first output power; the radio frequency power amplifier includes multiple alternating and continuous working time slots and multiple non-working time slots, the power supply voltage of the working time slots is the first voltage value, and the power supply voltage of the non-working time slots is the second voltage value;

[0011] A voltage control module is used to maintain the power supply voltage of the RF power amplifier at a first voltage value during the operating time slot of the RF power amplifier; and to reduce the first voltage value to a second voltage value based on a preset voltage adjustment value during the non-operating time slot of the RF power amplifier, thereby maintaining the power supply voltage of the RF power amplifier at the second voltage value; wherein the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor.

[0012] Thirdly, embodiments of this application provide a radio frequency circuit, including a radio frequency transceiver, a power amplifier, a radio frequency front end, and an antenna, wherein the power amplifier is supplied with a power supply voltage using a voltage control device as described in the second aspect above.

[0013] Fourthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0014] Fifthly, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0015] In a sixth aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the method described in the first aspect.

[0016] In this embodiment, a first voltage value of the radio frequency power amplifier at a first output power is obtained. The radio frequency power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots. During the operating time slots of the radio frequency power amplifier, the supply voltage of the radio frequency power amplifier is maintained at the first voltage value. During the non-operating time slots of the radio frequency power amplifier, the first voltage value is reduced to a second voltage value based on a preset voltage adjustment value, while maintaining the supply voltage of the radio frequency power amplifier at the second voltage value. Since the voltage adjustment value is not greater than the voltage difference corresponding to the target capacitance sound generated by the target detection capacitor, when the terminal is in a call state, the voltage difference between the supply voltages corresponding to the operating and non-operating time slots of the radio frequency power amplifier cannot cause the target detection capacitor to reach the preset capacitance sound value, thereby avoiding capacitance sound interference during the call and improving the user's call experience. Attached Figure Description

[0017] Figure 1 This is the power supply voltage timing diagram for the RF power amplifier;

[0018] Figure 2 This is a diagram illustrating the principle of capacitor-based sound generation.

[0019] Figure 3 This is a structural block diagram of the terminal circuit board;

[0020] Figure 4 This is a schematic flowchart of the power supply voltage control method for the radio frequency power amplifier provided in the embodiments of this application;

[0021] Figure 5 This is one of the power supply voltage timing diagrams of the radio frequency power amplifier provided in the embodiments of this application;

[0022] Figure 6 This is the second power supply voltage timing diagram of the radio frequency power amplifier provided in the embodiments of this application;

[0023] Figure 7 This is the third power supply voltage timing diagram of the radio frequency power amplifier provided in the embodiments of this application;

[0024] Figure 8 This is the fourth power supply voltage timing diagram of the radio frequency power amplifier provided in the embodiments of this application;

[0025] Figure 9 This is a schematic diagram of the power supply voltage control device for the radio frequency power amplifier provided in the embodiments of this application;

[0026] Figure 10 This is a schematic diagram of the radio frequency circuit provided in the embodiments of this application;

[0027] Figure 11 This is a schematic diagram of the electronic device structure provided in the embodiments of this application;

[0028] Figure 12 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of this application. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0030] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] The power supply voltage control method for the radio frequency power amplifier provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0032] In TDD (Time Division Duplex) mode, transmission and reception in a mobile communication system occur in different time slots on the same carrier, distinguished by scheduling signals to be transmitted in different time periods. During RF transmission and reception, the higher the transmit (Tx) power, the higher the required collector voltage (VCC) of the RF power amplifier (PA) during the Tx time slot, ensuring its output power meets the corresponding RF performance requirements. During the Rx time slot, since Tx is not active, there are no special requirements for its voltage; it only needs to meet the voltage difference requirement of the switching voltage after the DC-DC power supply conversion between batteries with different capacities (because the switching power supply has internal resistance, there is a certain voltage difference in Buck mode). Figure 1 As shown, in the Tx time slot, a higher power supply voltage is used to meet the requirements of transmission power and performance indicators; in the Rx time slot, a lower fixed voltage Vmin is used for power supply.

[0033] However, in practical applications, the supply voltage corresponding to the Tx time slot changes with the network environment, causing the voltage difference between the Tx and Rx time slots to also change. Taking the 5G N78 band as an example, the corresponding relationship of the supply voltage of the RF power amplifier is as follows:

[0034] When the Tx power is 26dBm, the voltage corresponding to the Tx time slot is 4.6V, and the voltage corresponding to the Rx time slot is 1.2V.

[0035] When the Tx power is 23dBm, the voltage corresponding to the Tx time slot is 3.2V, and the voltage corresponding to the Rx time slot is 1.2V.

[0036] When the Tx power is 20dBm, the voltage corresponding to the Tx time slot is 2.5V, and the voltage corresponding to the Rx time slot is 1.2V.

[0037] When the Tx power is 18dBm, the voltage corresponding to the Tx time slot is 2.2V, and the voltage corresponding to the Rx time slot is 1.2V.

[0038] And so on.

[0039] The voltage jump caused by the aforementioned Tx / Rx time slot skipping will cause capacitors on the VCC power network to make noise. For example... Figure 2 As shown, according to the inverse piezoelectric effect of capacitance, a piezoelectric material deforms under the influence of an external electric field, and the amount of deformation is proportional to the strength of the external electric field. For example... Figure 3 As shown, the capacitors in the 4G / 5G power network are also a type of piezoelectric material. When the power supply changes, they generate an inverse piezoelectric effect, causing the capacitors to vibrate, which in turn causes the motherboard to vibrate, resulting in a "humming" sound, also known as the capacitor sound during 4G / 5G calls, which affects the user's call experience.

[0040] To address the issue of capacitor noise interference, proposed solutions include replacing the capacitors in the 4G / 5G power supply with noise-reducing capacitors to mitigate the noise caused by capacitor vibration. However, noise-reducing capacitors are expensive, and multiple capacitors are used in a single phone, significantly increasing hardware costs. Another approach is to change the 4G / 5G power supply VCC to a constant voltage output (i.e., the PA uses the same power supply voltage for both Tx and Rx time slots). While this method effectively improves capacitor noise, it increases power consumption by approximately 10-30mA (the weaker the network signal, the higher the PA output power, and the higher the VCC voltage, the greater the increase in power consumption), reducing the usage time of smartphones and other smart devices and impacting user experience.

[0041] This application provides a voltage control method that controls the supply voltage of a radio frequency power amplifier to avoid capacitive interference during phone calls. Figure 4 As shown, the voltage control method 400 includes:

[0042] S401: Obtain the first voltage value of the RF power amplifier at the first output power.

[0043] The radio frequency power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots. The power supply voltage for the operating time slots is a first voltage value, and the power supply voltage for the non-operating time slots is a second voltage value.

[0044] The embodiments of this application can be applied to electronic devices including radio frequency power amplifiers. The electronic device can be a smart terminal such as a mobile phone. The radio frequency power amplifier corresponds to different supply voltages under different output powers. First, the first output power of the radio frequency power amplifier is obtained, and then the corresponding first voltage value is determined based on the first output power.

[0045] Optionally, in S401 above, obtaining the first voltage value of the RF power amplifier at the first output power includes:

[0046] Obtain the first output power of the RF power amplifier in the first network state;

[0047] Based on the preset correspondence between output power and supply voltage, the first voltage value corresponding to the first output power is determined.

[0048] In this embodiment, the first output power of the RF power amplifier under a first network state can be obtained through a power detection circuit. Then, based on the pre-stored correspondence between the output power and the supply voltage value, the first voltage value corresponding to the first output power is determined. In this way, the supply voltage of the RF power amplifier can be determined according to the network state of the electronic device, ensuring that the antenna's transmit power meets the corresponding performance requirements and improving communication quality.

[0049] S402: During the operating time slot of the RF power amplifier, the supply voltage of the RF power amplifier is maintained at a first voltage value; during the non-operating time slot of the RF power amplifier, the first voltage value is reduced to a second voltage value based on a preset voltage adjustment value, and the supply voltage of the RF power amplifier is maintained at the second voltage value; wherein, the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor.

[0050] The preset capacitance sound value is used to characterize the capacitance sound value corresponding to the level that the capacitance sound generated by the capacitor under test due to the inverse piezoelectric effect reaches the level that the human ear can hear. This capacitance sound value can be obtained by actual measurement in the laboratory environment.

[0051] As mentioned earlier, under the same output power, a higher power supply voltage is used to power the RF power amplifier in the Tx time slot, while a lower fixed voltage is used in the Rx time slot. When the power supply voltage VCC jumps, an inverse piezoelectric effect occurs, causing capacitor vibration. This embodiment controls the voltage difference between the power supply voltages used by the RF power amplifier in the Tx and Rx time slots to prevent the capacitor noise generated by the target detection capacitor from reaching a level acceptable to the human ear, thereby avoiding capacitor noise interference during calls.

[0052] Because the RF power amplifier operates during the Tx time slot and requires a supply voltage, while it does not operate during the Rx time slot and only needs to meet the voltage difference requirement for switching, this embodiment divides the RF power amplifier's time slots into operating and non-operating time slots. A higher voltage is provided during the operating time slot, and a lower voltage is provided during the non-operating time slot. Figure 5 As shown, during the operating time slot Tx of the RF power amplifier, the supply voltage of the RF power amplifier is maintained at a first voltage value V1; during the non-operating time slot Rx of the RF power amplifier, the first voltage value V1 is reduced to a second voltage value based on a preset voltage adjustment value ΔV, while maintaining the supply voltage of the RF power amplifier at the second voltage value. Here, the voltage adjustment value ΔV is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor. This preset capacitance sound value is the level at which the "humming" sound generated by the target detection capacitor on the 4G / 5G power supply due to the inverse piezoelectric effect is perceptible to the human ear (not easily perceived by the human ear). The voltage adjustment value ΔV can be set according to actual needs. In laboratory environment testing, ΔV is approximately 0.3V.

[0053] Thus, when the Tx voltage is V1, the VCC output voltage changes as follows: V1→V1-ΔV→V1→V1-ΔV→V1, repeating this cycle N times at the same power. This method effectively reduces the Rx time slot voltage, resulting in significantly less capacitor noise compared to directly reducing the Rx time slot voltage to Vmin (the lowest configurable VCC voltage). Furthermore, compared to constant voltage output (i.e., at a certain power level, Tx and Rx voltages are the same), taking V1 as 1V as an example, it can reduce 1V to 0.7V, optimizing Rx time slot power consumption by 30%. This can increase the usage time of smartphones and other smart terminals, improving the user experience.

[0054] In practical applications, the network signal is stable in most call environments, meaning that electronic devices are in the same network environment and the output power of the RF power amplifier is the same. However, in scenarios where the network condition changes, such as a user moving from outdoors to an underground parking lot (where the network signal weakens, the PA output power increases, and the VCC voltage rises), and then moving from the underground parking lot to outdoors (where the network signal improves, the PA output power decreases, and the VCC voltage drops), the output waveform of VCC switching at different power levels is as follows: Figure 6 As shown, different power outputs correspond to different supply voltages. When the Tx voltage is V1, the VCC output voltage changes as follows: V1→V1-ΔV. When the Tx voltage is V2, the VCC output voltage changes as follows: V2→V2-ΔV. When the Tx voltage is V3, the VCC output voltage changes as follows: V3→V3-ΔV.

[0055] It should be noted that in practical applications, the network signal usually changes gradually during the network state switching process, and there are very few cases of sudden enhancement or sudden weakening. Therefore, it is not easy to generate capacitive acoustic interference when the network state changes.

[0056] Optionally, in S402 above, reducing the first voltage value to the second voltage value based on a preset voltage adjustment value includes:

[0057] During the non-operational time slot of the RF power amplifier, the first voltage value is gradually reduced to the second voltage value based on the voltage adjustment value.

[0058] In specific implementations, for the case where a higher power supply voltage is used to power the RF power amplifier in the Tx time slot and a lower fixed voltage Vmin is used in the Rx time slot under the same output power, the embodiments of this application propose to output the Rx time slot voltage and the Tx time slot voltage in a stepped manner to avoid the problem of capacitor noise interference caused by large jumps between Tx and Rx.

[0059] like Figure 7 As shown, during the operating time slot Tx of the RF power amplifier, the supply voltage of the RF power amplifier is kept at the first voltage value V1; during the non-operating time slot Rx of the RF power amplifier, the first voltage value V1 is reduced stepwise to the second voltage value Vmin based on the preset voltage adjustment value ΔV, and the supply voltage of the RF power amplifier is kept at the second voltage value Vmin.

[0060] In specific implementation, the non-working time slot Rx can be divided into multiple time slots with equal intervals, such as the first time slot, the second time slot, the third time slot, and so on. Based on the voltage adjustment value ΔV, the first voltage value V1 is reduced to the fourth voltage value, and the supply voltage of the RF power amplifier in the first time slot is kept at the fourth voltage value. Based on the voltage adjustment value ΔV, the fourth voltage value is reduced to the fifth voltage value, and the supply voltage of the RF power amplifier in the second time slot is kept at the fifth voltage value, and so on, until the supply voltage of the RF power amplifier is reduced to the preset target voltage value Vmin, and the supply voltage of the RF power amplifier is kept at the target voltage value Vmin.

[0061] Here, each time slot t is determined based on the response time of the delay circuit or component, and the voltage drop time from V1 to Vmin is kept as short as possible to reduce power consumption.

[0062] Optionally, after reducing the first voltage value to the second voltage value in a stepwise manner based on the voltage adjustment value, the method further includes:

[0063] During the non-operational time slot of the RF power amplifier, the second voltage value is stepped up to the first voltage value based on the voltage adjustment value.

[0064] As mentioned above, the first target time slot can be determined by calculating the difference between the first voltage value V1 and the second voltage value Vmin, and then by the ratio of the difference to the time slot t. Furthermore, when the first target time slot is reached, the second voltage value Vmin is stepped up to the first voltage value V1 based on the voltage adjustment value ΔV.

[0065] In this way, when the Tx time slot voltage is V1, the Rx time slot voltage drops to the settable minimum voltage Vmin in steps of ΔV / t, optimizing capacitor noise and reducing power consumption. It then rises back to V1 in steps of ΔV / t to meet the voltage requirements of the Tx time slot. The VCC output voltage change is: V1→V1-n*ΔV→Vmin→Vmin+n*ΔV→V1, where n=(1,2,3….). This cycle repeats N times at the same power. This stepped power output method has a smaller voltage difference step compared to directly dropping from V1 to Vmin and then rising to V2, resulting in less capacitor noise. Furthermore, compared to constant voltage output, it reduces power consumption, extends the lifespan of electronic devices, and improves the user experience.

[0066] Optionally, after reducing the first voltage value to the second voltage value in a stepwise manner based on the voltage adjustment value, the method further includes:

[0067] Obtain the third voltage value of the RF power amplifier at the second output power; during the non-operating time slot of the RF power amplifier, increase the second voltage value to the third voltage value in a stepwise manner based on the voltage adjustment value.

[0068] In scenarios where network conditions change, the RF power amplifier can adjust its transmit power accordingly. Furthermore, by obtaining the third voltage value V3 of the RF power amplifier at the second output power, the second target time slot can be determined based on the third voltage value V3, the voltage adjustment value ΔV, and the second voltage value Vmin. For example... Figure 8 As shown, when the voltage of Tx1 is V1, the voltage of Tx2 is V2, and the voltage of Tx is V3, the output voltage of VCC changes as follows: V1→V1-n1*△V→Vmin→Vmin+n2*△V→V2→V1-n2*△V→Vmin→Vmin+n3*△V→V3→V3-n3*△V→Vmin, where n=(1,2,3….).

[0069] The process of obtaining the third voltage value of the RF power amplifier at the second output power includes:

[0070] Obtain the second output power of the RF power amplifier in the second network state;

[0071] Based on the preset correspondence between output power and supply voltage, the third voltage value corresponding to the second output power is determined.

[0072] In a specific implementation, the second output power of the RF power amplifier in the second network state can be obtained through a power detection circuit, and then the third voltage value corresponding to the second output power can be determined according to the pre-stored correspondence between the output power and the supply voltage value.

[0073] In this way, the power supply voltage of the RF power amplifier can be determined according to the network status of the electronic device, so as to ensure that the antenna's transmission power meets the corresponding performance requirements and improves communication quality.

[0074] The voltage control method provided in this application can be executed by a voltage control device for an RF power amplifier. This application uses the example of a voltage control device for an RF power amplifier executing the aforementioned power supply voltage control method to illustrate the voltage control device provided in this application.

[0075] Figure 9 This is a schematic diagram of the voltage control device provided in an embodiment of this application. Figure 9 As shown, the voltage control device 900 includes:

[0076] The voltage value acquisition module 910 is used to acquire the first voltage value of the radio frequency power amplifier at the first output power; the radio frequency power amplifier includes multiple alternating and continuous working time slots and multiple non-working time slots, the power supply voltage of the working time slots is the first voltage value, and the power supply voltage of the non-working time slots is the second voltage value;

[0077] The voltage control module 920 is used to maintain the power supply voltage of the radio frequency power amplifier at a first voltage value during the working time slot of the radio frequency power amplifier; and to reduce the first voltage value to a second voltage value based on a preset voltage adjustment value during the non-working time slot of the radio frequency power amplifier, thereby maintaining the power supply voltage of the radio frequency power amplifier at the second voltage value; wherein the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor.

[0078] Optionally, the voltage value acquisition module 910 includes:

[0079] A power acquisition unit is used to acquire the first output power of the RF power amplifier in the first network state.

[0080] The voltage value determination unit is used to determine the first voltage value corresponding to the first output power based on the preset correspondence between the output power and the supply voltage value.

[0081] Optionally, the voltage control module 920 includes:

[0082] A first voltage adjustment unit is used to reduce the first voltage value to a second voltage value in a stepwise manner based on the voltage adjustment value during the non-operating time slot of the RF power amplifier.

[0083] Optionally, the voltage control module 920 also includes:

[0084] The second voltage adjustment unit is used to stepwise increase the second voltage value to the first voltage value based on the voltage adjustment value during the non-operating time slot of the RF power amplifier.

[0085] Optionally, the voltage control module 920 also includes:

[0086] The third voltage adjustment unit is used to obtain the third voltage value of the RF power amplifier at the second output power; and to stepwise increase the second voltage value to the third voltage value based on the voltage adjustment value during the non-operating time slot of the RF power amplifier.

[0087] The third voltage adjustment unit, when used to obtain the third voltage value of the RF power amplifier at the second output power, is used for:

[0088] Obtain the second output power of the RF power amplifier in the second network state;

[0089] Based on the preset correspondence between output power and supply voltage, the third voltage value corresponding to the second output power is determined.

[0090] The voltage control device in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television set (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the device.

[0091] The voltage control device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit the specific operating system used.

[0092] The voltage control device provided in this application embodiment can achieve... Figures 4 to 8 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0093] Optionally, such as Figure 10 As shown, this application embodiment also provides a radio frequency circuit, including a radio frequency transceiver 1010, a power amplifier 1020, a radio frequency front end, and an antenna. The power amplifier 1020 is supplied with a power supply voltage using a voltage control device 900 as described above.

[0094] The radio frequency front end includes a filter 1031, a power coupler 1032, a power detection circuit, and a switch 1033; the antenna includes a transmitting antenna 1041 and a receiving antenna 1042.

[0095] The radio frequency transceiver 1010 transmits a first electrical signal sequentially through a power amplifier 1020, a power coupler 1032, a switch 1033, and a transmitting antenna 1041; the receiving antenna 1042 feeds back the received second electrical signal to the radio frequency transceiver 1010 through the switch 1033; the power detection circuit 1033 is used to detect the target output power of the power coupler and return the target output power to the radio frequency transceiver 1010, the target output power including the first output power and the second output power.

[0096] Optionally, such as Figure 11 As shown, this application embodiment also provides an electronic device 1100, including a processor 1101 and a memory 1102. The memory 1102 stores a program or instructions that can run on the processor 1101. When the program or instructions are executed by the processor 1101, they implement the various steps of the above-described embodiment of the power supply voltage control method for the radio frequency power amplifier and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0097] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0098] Figure 12 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of this application.

[0099] The electronic device 1200 includes, but is not limited to, components such as: radio frequency unit 1201, network module 1202, audio output unit 1203, input unit 1204, sensor 1205, display unit 1206, user input unit 1207, interface unit 1208, memory 1209, and processor 1210.

[0100] Those skilled in the art will understand that the electronic device 1200 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1210 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 12 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0101] The processor 1210 is used to obtain the first voltage value of the RF power amplifier at the first output power.

[0102] The radio frequency power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots, wherein the power supply voltage of the operating time slots is a first voltage value and the power supply voltage of the non-operating time slots is a second voltage value.

[0103] During the operating time slot of the RF power amplifier, the supply voltage of the RF power amplifier is maintained at a first voltage value; during the non-operating time slot of the RF power amplifier, the first voltage value is reduced to a second voltage value based on a preset voltage adjustment value, and the supply voltage of the RF power amplifier is maintained at the second voltage value; wherein, the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor.

[0104] In this embodiment, since the voltage difference between the power supply voltage corresponding to the working time slot and the non-working time slot of the RF power amplifier cannot make the target detection capacitor reach the preset capacitance sound value when the terminal is in a call state, capacitance sound interference during the call can be avoided, thus improving the user's call experience.

[0105] The electronic device 1200 provided in this application embodiment can also implement the various processes of the above-described RF power amplifier power supply voltage control method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0106] It should be understood that, in this embodiment, the input unit 1204 may include a graphics processing unit (GPU) 12041 and a microphone 12042. The GPU 12041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1206 may include a display panel 12061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1207 includes a touch panel 12071 and at least one of other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 may include a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0107] The memory 1209 can be used to store software programs and various data. The memory 1209 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1209 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 109 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0108] Processor 1210 may include one or more processing units; optionally, processor 1210 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1210.

[0109] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described embodiment of the power supply voltage control method for the radio frequency power amplifier and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0110] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0111] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described embodiment of the power supply voltage control method for the radio frequency power amplifier, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0112] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0113] This application provides a computer program product stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-described embodiment of the power supply voltage control method for a radio frequency power amplifier, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0114] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0115] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0116] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A voltage control method, characterized in that, include: Obtain the first voltage value of the RF power amplifier at the first output power; The radio frequency power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots, wherein the power supply voltage of the operating time slots is a first voltage value and the power supply voltage of the non-operating time slots is a second voltage value. During the operating time slot of the radio frequency power amplifier, the supply voltage of the radio frequency power amplifier is maintained at a first voltage value; During the non-operating time slot of the RF power amplifier, the first voltage value is reduced to a second voltage value based on a preset voltage adjustment value, while maintaining the power supply voltage of the RF power amplifier at the second voltage value; wherein, the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor; The step of reducing the first voltage value to the second voltage value based on a preset voltage adjustment value includes: The non-working time slot includes multiple equally spaced and continuous time slots, and in each time slot the voltage adjustment value is decreased, so that the first voltage value is reduced stepwise to the second voltage value.

2. The method according to claim 1, characterized in that, The process of obtaining the first voltage value of the RF power amplifier at the first output power includes: Obtain the first output power of the RF power amplifier in the first network state; Based on the preset correspondence between output power and supply voltage, the first voltage value corresponding to the first output power is determined.

3. The method according to claim 1, characterized in that, After reducing the first voltage value to the second voltage value in a stepwise manner based on the voltage adjustment value, the method further includes: During the non-operational time slot of the RF power amplifier, the second voltage value is stepped up to the first voltage value based on the voltage adjustment value.

4. The method according to claim 1, characterized in that, After reducing the first voltage value to the second voltage value in a stepwise manner based on the voltage adjustment value, the method further includes: Obtain the third voltage value of the RF power amplifier at the second output power; During the non-operational time slot of the RF power amplifier, the second voltage value is stepped up to the third voltage value based on the voltage adjustment value.

5. The method according to claim 4, characterized in that, The step of obtaining the third voltage value of the RF power amplifier at the second output power includes: Obtain the second output power of the RF power amplifier in the second network state; Based on the preset correspondence between output power and supply voltage, the third voltage value corresponding to the second output power is determined.

6. A voltage control device, characterized in that, include: A voltage value acquisition module is used to acquire the first voltage value of the RF power amplifier at the first output power. The radio frequency power amplifier includes multiple alternating and continuous operating time slots and multiple non-operating time slots, wherein the power supply voltage of the operating time slots is a first voltage value and the power supply voltage of the non-operating time slots is a second voltage value. A voltage control module is configured to maintain the power supply voltage of the RF power amplifier at a first voltage value during the operating time slot of the RF power amplifier; and to reduce the first voltage value to a second voltage value based on a preset voltage adjustment value during the non-operating time slot of the RF power amplifier, thereby maintaining the power supply voltage of the RF power amplifier at the second voltage value; wherein the voltage adjustment value is not greater than the voltage difference corresponding to the preset capacitance sound value generated by the target detection capacitor; The non-working time slots include multiple equally spaced and continuous time slots, and the voltage control module includes: The first voltage adjustment unit is used to decrease the voltage adjustment value in each time slot, so that the first voltage value is reduced stepwise to the second voltage value.

7. The apparatus according to claim 6, characterized in that, The voltage value acquisition module includes: A power acquisition unit is used to acquire the first output power of the RF power amplifier in the first network state. The voltage value determination unit is used to determine the first voltage value corresponding to the first output power based on the preset correspondence between the output power and the supply voltage value.

8. A radio frequency circuit, comprising a radio frequency transceiver, a power amplifier, a radio frequency front end, and an antenna, characterized in that, The power amplifier is supplied with a voltage control device as described in any one of claims 6 to 7.

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