Electronic device and method for supplying voltage to control circuit of front-end module

Abstract

According to an embodiment, an electronic device is provided. The electronic device may include a processor; a radio frequency (RF) transceiver; a radio frequency front end (RFFE) module, the RFFE module being connected to the RF transceiver; an antenna, wherein the antenna is connected to the RFFE module; a battery configured to provide a first voltage; and a power supply circuit configured to supply a second voltage to a power amplifier (PA) based on the first voltage. The RFFE module may include: a control circuit to control a PA bias in the RFFE module and at least one switch in the RFFE module; and the switching circuit is used for the control circuit.

Description

Technical Field

[0001] The following description relates to an electronic device and a method for supplying voltage to the control circuitry of a front-end module. Background Technology

[0002] Electronic devices may include a radio frequency front-end (RFFE) module for transmitting or receiving signals. For example, the RFFE module may include a power amplifier (PA) for transmitting power of signals transmitted via an antenna connected to the RFFE module. The RFFE module may include control circuitry for supplying a bias voltage to the power amplifier and operating at least one switch within the RFFE module.

[0003] The information described above can serve as relevant technology to aid in understanding this disclosure. This document makes no argument or judgment regarding whether any of the foregoing descriptions can be considered prior art related to the content of this disclosure. Summary of the Invention

[0004] Technical solution In one embodiment, an electronic device is provided. The electronic device may include: a processor; a radio frequency (RF) transceiver; a radio frequency front-end (RFFE) module connected to the RF transceiver; an antenna connected to the RFFE module; a battery configured to provide a first voltage; and a power supply circuit configured to supply a second voltage to a power amplifier (PA) based on the first voltage. The RFFE module may include: a control circuit and a switching circuit for the control circuit, the control circuit being configured to control a PA bias within the RFFE module and at least one switch within the RFFE module. The processor may be configured to: control the switching circuit to supply the first voltage (between the first voltage and the second voltage) to the control circuit based on the first voltage being higher than or equal to a voltage threshold. The processor may also be configured to: control the switching circuit to supply the second voltage (between the first voltage and the second voltage) to the control circuit based on the first voltage being lower than the voltage threshold.

[0005] In one embodiment, a radio frequency front-end (RFFE) module is provided. The RFFE module may include: a power amplifier (PA); control circuitry; and a switching circuitry for the control circuitry, the control circuitry being used to control PA bias on the PA and at least one switch within the RFFE module. The RFFE module may be configured to acquire a first voltage from a battery and a second voltage from a power supply circuit. The switching circuitry may be configured to selectively supply the first voltage from the battery or the second voltage from the power supply circuitry to the control circuitry. The control circuitry may include at least one of a PA bias circuitry for supplying a bias voltage to the PA, logic circuitry for controlling the at least one switch, or a power supply circuitry for supplying power to the at least one switch.

[0006] In one embodiment, an electronic device is provided. The electronic device may include: a processor; a radio frequency (RF) transceiver; a radio frequency front-end (RFFE) module connected to the RF transceiver; an antenna connected to the RFFE module; a battery configured to provide a first voltage; and a power supply circuit configured to supply a second voltage to a power amplifier (PA) based on the first voltage. The RFFE module may include control circuitry and a switching circuitry for the control circuitry, the control circuitry being configured to control PA bias within the RFFE module and at least one switch within the RFFE module. The switching circuitry may be controlled according to the control of the processor or the RF transceiver to supply the control circuitry with the first voltage (either the first voltage or the second voltage) based on the first voltage being higher than or equal to a voltage threshold, and to supply the control circuitry with the second voltage (either the first voltage or the second voltage) based on the first voltage being lower than the voltage threshold. Attached Figure Description

[0007] Figure 1 It is a block diagram of electronic devices in a network environment.

[0008] Figure 2 This represents an example of an electronic device that includes a radio frequency front-end (RFFE) module.

[0009] Figure 3a An example of the control circuitry for an RFFE module.

[0010] Figure 3b This indicates the relationship between the control circuitry of the RFFE module and the performance of the power amplifier.

[0011] Figure 4a , Figure 4b and Figure 4cThis represents an example of an RFFE module that includes control circuitry and a switching circuitry for supplying voltage to the control circuitry.

[0012] Figure 5a , Figure 5b and Figure 5c This represents an example of an electronic device that includes an RFFE module connected to an inductor.

[0013] Figure 6 This represents an example of an electronic device that includes multiple RFFE modules and multiple power supply circuits.

[0014] Figure 7 This represents an example of an electronic device used to supply the power amplifier voltage to each RFFE module.

[0015] Figure 8 This represents an example of an electronic device used to supply the power amplifier voltage to each RFFE module.

[0016] Figure 9 This describes the operating procedure of the electronic device used to supply voltage to the control circuitry of the RFFE module. Detailed Implementation

[0017] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of another embodiment. Singular expressions may include plural expressions unless the context clearly indicates otherwise. The terminology used herein (including technical or scientific terms) may have the same meaning as commonly understood by one of ordinary skill in the art as described in this disclosure. Among the terminology used in this disclosure, terms defined in general dictionaries may be interpreted as having the same or similar meaning as in the context of related art, and not as having an ideal or overly formal meaning, unless clearly defined in this disclosure. In some cases, even terms defined in this disclosure may be interpreted as not excluding embodiments of this disclosure.

[0018] In the various embodiments of this disclosure described below, hardware methods are described as examples. However, since the various embodiments of this disclosure include techniques using both hardware and software, software-based methods are not excluded.

[0019] The terms used in the following description relating to components of electronic devices (e.g., communication module, wireless communication module, substrate, printed circuit board (PCB), flexible PCB (FPCB), module, antenna, antenna element, circuit, processor, chip, component, or device), RF-related components (front-end module (FEM), power amplifier module (PAM), FEM including duplexer (FEMid), power amplifier module including duplexer (LPAMid), low-noise amplifier PAM including duplexer (LPAMid), radio frequency front-end (RFFE) or radio frequency integrated circuit (RFIC)), component shapes (e.g., structure, construction, support, contact, or protrusion), connections between structures (e.g., connection, contact, support, contact structure, conductive member, or assembly), and circuits (e.g., PCB, FPCB, signal line and feeder line, data line, RF signal line, antenna, signal path, RF path, RF module, RF circuit, splitter, distributor, coupler, or combiner), etc., are illustrative for ease of description. Therefore, this disclosure is not limited to the terms described below, and other terms with equivalent technical meanings may be used. Additionally, terms such as “…unit,” “…device,” “…object,” and “…structure” used below may refer to at least one shape or structure, or may refer to a unit that performs processing functions.

[0020] Furthermore, in this disclosure, the terms "greater than" or "less than" can be used to determine whether a particular condition is met or fulfilled; however, this is merely a description for illustrative purposes and does not exclude descriptions of "greater than or equal to" or "less than or equal to". A condition described as "greater than or equal to" may be replaced with "greater than", a condition described as "less than or equal to" may be replaced with "less than", and a condition described as "greater than or equal to and less than" may be replaced with "greater than and less than or equal to". Additionally, in the following, "A" to "B" refers to at least one element from A (inclusive) to B (inclusive). In the following, "C" and / or "D" means including at least one of "C" or "D", i.e., {"C", "D", and "C" and "D"}.

[0021] Figure 1 This is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments.

[0022] Reference Figure 1In network environment 100, electronic device 101 can communicate with electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or with at least one of electronic device 104 or server 108 via a second network 199 (e.g., a long-range wireless communication network). According to an embodiment, electronic device 101 can communicate with electronic device 104 via server 108. According to an embodiment, electronic device 101 may include a processor 120, memory 130, input module 150, sound output module 155, display module 160, audio module 170, sensor module 176, interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, user identification module (SIM) 196, or antenna module 197. In some embodiments, at least one of the above components (e.g., connection terminal 178) may be omitted from electronic device 101, or one or more other components may be added to electronic device 101. In some embodiments, some of the components described above (e.g., sensor module 176, camera module 180, or antenna module 197) may be implemented as a single component (e.g., display module 160).

[0023] Processor 120 may run software (e.g., program 140) to control at least one other component (e.g., hardware or software component) of electronic device 101 coupled to processor 120, and may perform various data processing or calculations. According to embodiments, as at least part of the data processing or calculation, processor 120 may store commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132, process the commands or data stored in volatile memory 132, and store the resulting data in non-volatile memory 134. According to embodiments, processor 120 may include a main processor 121 (e.g., central processing unit (CPU) or application processor (AP)) or an auxiliary processor 123 (e.g., graphics processing unit (GPU), neural processing unit (NPU), image signal processor (ISP), sensor central processor, or communication processor (CP)) that is operationally independent of or combined with the main processor 121. For example, when electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 can be adapted to consume less power than the main processor 121, or adapted to be dedicated to a specific function. The auxiliary processor 123 can be implemented separately from the main processor 121, or as part of the main processor 121.

[0024] When the main processor 121 is inactive (e.g., in sleep) state, the auxiliary processor 123 (rather than the main processor 121) can control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190), or when the main processor 121 is active (e.g., running an application), the auxiliary processor 123 can work with the main processor 121 to control at least some of the functions or states associated with at least one component of the electronic device 101 (e.g., display module 160, sensor module 176, or communication module 190). According to embodiments, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) can be implemented as part of another component (e.g., camera module 180 or communication module 190) functionally associated with the auxiliary processor 123. According to embodiments, the auxiliary processor 123 (e.g., a neural processing unit) can include hardware architectures dedicated to artificial intelligence model processing. Artificial intelligence models can be generated through machine learning. For example, such learning can be performed via electronic device 101 where the artificial intelligence model is executed or via a separate server (e.g., server 108). The learning algorithm can include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model can include multiple layers of artificial neural networks. The artificial neural networks can be, but are not limited to, deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted Boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), or deep Q-networks, or combinations of two or more thereof. Additionally or optionally, the artificial intelligence model can include software structures in addition to hardware structures.

[0025] Memory 130 may store various data used by at least one component of electronic device 101 (e.g., processor 120 or sensor module 176). The various data may include, for example, software (e.g., program 140) and input or output data for commands associated with it. Memory 130 may include volatile memory 132 or non-volatile memory 134.

[0026] The program 140 can be stored as software in the memory 130, and the program 140 may include, for example, an operating system (OS) 142, middleware 144, or application 146.

[0027] Input module 150 can receive commands or data from outside electronic device 101 (e.g., a user) that will be used by another component of electronic device 101 (e.g., processor 120). Input module 150 may include, for example, a microphone, mouse, keyboard, keys (e.g., buttons), or digital pen (e.g., stylus).

[0028] The audio output module 155 can output audio signals to the outside of the electronic device 101. The audio output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. According to embodiments, the receiver can be implemented separately from the speaker, or as part of the speaker.

[0029] Display module 160 can visually provide information to the outside of electronic device 101 (e.g., to a user). Display module 160 may include, for example, a display, a holographic device, or a projector, and control circuitry for controlling a corresponding one of the display, holographic device, and projector. According to an embodiment, display module 160 may include a touch sensor adapted to detect touch or a pressure sensor adapted to measure the intensity of the force caused by touch.

[0030] The audio module 170 can convert sound into electrical signals and vice versa. According to an embodiment, the audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or headphones of an external electronic device (e.g., electronic device 102) that is directly (e.g., wired) coupled to the electronic device 101 or wirelessly coupled to it.

[0031] Sensor module 176 can detect the operating state of electronic device 101 (e.g., power or temperature) or the environmental state outside electronic device 101 (e.g., user state), and then generate an electrical signal or data value corresponding to the detected state. According to embodiments, sensor module 176 may include, for example, a gesture sensor, gyroscope sensor, atmospheric pressure sensor, magnetic sensor, accelerometer, grip sensor, proximity sensor, color sensor, infrared (IR) sensor, biometric sensor, temperature sensor, humidity sensor, or illuminance sensor.

[0032] Interface 177 may support one or more specific protocols used to couple (e.g., wired) or wirelessly to electronic device 101 with external electronic device (e.g., electronic device 102). According to embodiments, interface 177 may include, for example, a High Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, or an audio interface.

[0033] Connection end 178 may include a connector, through which electronic device 101 can be physically connected to an external electronic device (e.g., electronic device 102). According to embodiments, connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0034] The haptic module 179 can convert electrical signals into mechanical stimuli (e.g., vibration or motion) or electrical stimuli that can be recognized by a user through his touch or kinesthesia. According to embodiments, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0035] Camera module 180 can capture still or moving images. According to an embodiment, camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0036] The power management module 188 can manage the power supply to the electronic device 101. According to an embodiment, the power management module 188 can be implemented as at least part of, for example, a power management integrated circuit (PMIC).

[0037] Battery 189 can power at least one component of electronic device 101. According to embodiments, battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable rechargeable battery, or a fuel cell.

[0038] Communication module 190 can support the establishment of a direct (e.g., wired) or wireless communication channel between electronic device 101 and external electronic devices (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. Communication module 190 may include one or more communication processors capable of operating independently of processor 120 (e.g., application processor (AP)) and support direct (e.g., wired) or wireless communication. According to embodiments, communication module 190 may include wireless communication module 192 (e.g., cellular communication module, short-range wireless communication module, or Global Navigation Satellite System (GNSS) communication module) or wired communication module 194 (e.g., local area network (LAN) communication module or power line communication (PLC) module). A corresponding one of these communication modules can communicate via a first network 198 (e.g., a short-range communication network, such as Bluetooth). TM The communication module 192 can communicate with external electronic devices via a Wi-Fi Direct or Infrared Data Association (IrDA) network or a second network 199 (e.g., a long-range communication network, such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip) or as multiple components that are separate from each other (e.g., multiple chips). The wireless communication module 192 can use user information (e.g., the International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196 to identify and verify the electronic device 101 in the communication network (such as the first network 198 or the second network 199).

[0039] Wireless communication module 192 can support 5G networks following 4G networks and next-generation communication technologies (such as New Radio (NR) access technologies). NR access technologies can support enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), or ultra-reliable low-latency communications (URLLC). Wireless communication module 192 can support high-frequency bands (e.g., millimeter-wave bands) to achieve, for example, high data transmission rates. Wireless communication module 192 can support various technologies used to ensure performance in high-frequency bands, such as, for example, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. Wireless communication module 192 can support various requirements specified in electronic device 101, external electronic devices (e.g., electronic device 104), or network systems (e.g., second network 199). According to an embodiment, the wireless communication module 192 may support peak data rates (e.g., 20 Gbps or greater) for implementing eMBB, lost coverage (e.g., 164 dB or less) for implementing mMTC, or U-plane latency (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less round trip) for implementing URLLC.

[0040] Antenna module 197 can transmit or receive signals or power to or from the outside of electronic device 101 (e.g., external electronic device). According to an embodiment, antenna module 197 may include an antenna comprising a radiating element formed of conductive material or conductive patterns formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, antenna module 197 may include multiple antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as a first network 198 or a second network 199) can be selected from the multiple antennas by, for example, communication module 190 (e.g., wireless communication module 192). Signals or power can then be transmitted or received between communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, another component besides the radiating element (e.g., a radio frequency integrated circuit (RFIC)) may be additionally incorporated into antenna module 197.

[0041] According to various embodiments, antenna module 197 can form a millimeter-wave antenna module. According to embodiments, the millimeter-wave antenna module may include a printed circuit board, an RFIC, and multiple antennas (e.g., an array antenna), wherein the RFIC is disposed on or adjacent to a first surface (e.g., a bottom surface) of the printed circuit board and is capable of supporting a specified high-frequency band (e.g., a millimeter-wave band), and the multiple antennas are disposed on or adjacent to a second surface (e.g., a top or side surface) of the printed circuit board and are capable of transmitting or receiving signals in the specified high-frequency band.

[0042] At least some of the aforementioned components can be coupled to each other via an inter-peripheral communication scheme (e.g., bus, general purpose input / output (GPIO), serial peripheral interface (SPI), or mobile industrial processor interface (MIPI)) and can communicatively send signals (e.g., commands or data) between them.

[0043] According to an embodiment, commands or data can be sent or received between electronic device 101 and external electronic device 104 via server 108 coupled to the second network 199. Each of electronic device 102 or electronic device 104 can be a device of the same type as electronic device 101, or a device of a different type. According to an embodiment, all or some of the operations to be performed on electronic device 101 can be performed on one or more of external electronic devices 102, external electronic devices 104, or server 108. For example, if electronic device 101 is required to automatically perform a function or service or is required to perform a function or service in response to a request from a user or another device, electronic device 101 may request one or more external electronic devices to perform at least a portion of the function or service instead of running the function or service, or electronic device 101 may request one or more external electronic devices to perform at least a portion of the function or service in addition to running the function or service. Upon receiving the request, one or more external electronic devices may perform at least a portion of the requested function or service, or perform additional functions or services related to the request, and send the result of the execution to electronic device 101. Electronic device 101 may provide the result as at least a partial response to the request, with or without further processing of the result. For this purpose, technologies such as cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing can be used. Electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment, external electronic device 104 may include an Internet of Things (IoT) device. Server 108 may be an intelligent server using machine learning and / or neural networks. According to embodiments, external electronic device 104 or server 108 may be included in a second network 199. Electronic device 101 can be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology or IoT-related technologies.

[0044] Figure 2 Examples of electronic devices including a radio frequency front-end (RFFE) module (e.g., electronic device 101).

[0045] Reference Figure 2 Electronic device 101 may include processor 210, RF transceiver 220, radio frequency front-end (RFFE) module 230, battery 240, power supply circuitry 250 (e.g., modulator), and antenna 290. Electronic device 101 may include processor 210. For example, processor 210 may include application processor (AP) (e.g., ...). Figure 1 The main processor 121) or communication processor (CP) (e.g., Figure 1At least one of the auxiliary processors 123. For example, processor 210 may include an AP and a CP. For example, processor 210 may include an AP. For example, processor 210 may include a CP. Processor 210 can control RF transceiver 220 through control interface 211. For example, processor 210 can generate baseband signals. Processor 210 can control RF transceiver 220 to process the generated baseband signals. Processor 210 can transmit signal 213a (e.g., analog data or digital data). For example, signal 213a may be a communication signal for transmission to external electronic devices (e.g., base station, satellite, terminal, electronic device 102, electronic device 104, or server 108). Processor 210 can control RF transceiver 220 to transmit signals through antenna 280. Processor 210 can receive signal 213b (e.g., analog data or digital data). For example, signal 213b may be a signal received from an external electronic device (e.g., a base station, satellite, terminal, electronic device 102, electronic device 104, or server 108) via antenna 280. Alternatively, signal 213b may include a signal used to measure transmission power (e.g., a feedback signal). Processor 210 may control RF transceiver 220 to receive signal 213b. For example, processor 210 may acquire the feedback signal through a port of RF transceiver 220 (e.g., a feedback receive port (FBRX)).

[0046] Electronic device 101 may include RF transceiver 220. For example, RF transceiver 220 may be implemented as a single chip (e.g., an RFIC chip) or as part of a single package. RF transceiver 220 may include a digital-to-analog converter (DAC) for converting digital signals into analog signals. RF transceiver 220 may include a mixer and oscillator (e.g., a local oscillator (LO)) for up-conversion. RF transceiver 220 may convert baseband signals generated by processor 210 into RF signals. For example, RF transceiver 220 may provide RF signal 261 to RFFE module 230. RF transceiver 220 may include an analog-to-digital converter (ADC) for converting analog signals into digital signals. RF transceiver 220 may include a mixer and oscillator for down-conversion. RF transceiver 220 may convert RF signals received from antenna 280 into baseband signals that can be processed by processor 210. RF transceiver 220 may include one or more transmit ports. RF transceiver 220 may include one or more receive ports. Although in Figure 2Although not shown, RF transceiver 220 can receive feedback signals from components (e.g., coupler 235) of RFFE module 230 electrically connected to antenna 290. For example, RF transceiver 220 may include a feedback receive port (FBRX) for the feedback signal. According to an embodiment, RF transceiver 220 can control at least a portion of RFFE module 230 via control interface 223 (e.g., Mobile Industrial Processor Interface (MIPI)). According to an embodiment, RF transceiver 220 can control at least a portion of power supply circuitry 250 via control interface 225 (e.g., MIPI).

[0047] Electronic device 101 may include RFFE module 230. Wireless communication systems are evolving to support higher data transmission rates to meet the increasing service demands for wireless data. To support various frequency combinations, components of multiple transmit (TX) / receive (RX) modules (e.g., RFFE module 230) may be arranged around RF transceiver 220. In this disclosure, RFFE module 230 may refer to a module including a power amplifier (PA) 260 for RF signal 261 within the RFFE. For example, RFFE module 230 may be a PA that includes power amplifier 260 and RF components (e.g., duplexer, filter, or switch) for processing the transmitted signal. For example, RFFE module 230 may be... Figure 4b The examples in the text include LNA's LPAmid. For example, RFFE module 230 could be... Figure 4c The example shown includes a power amplifier module comprising a power amplifier 260 and control circuitry for the power amplifier 260. The RFFE module 230 can be configured to transmit a transmit signal (e.g., RF signal 261) from the RF transceiver 220 to the antenna 290. The RF signal 261 from the RF transceiver 220 can be amplified by the power amplifier 260. The amplified RF signal can then be radiated into the air through the antenna 290. Although in Figure 2Although not shown, the RFFE module 230 may include components for the receive path in addition to those for the transmit path. The RFFE module 230 may include a low-noise amplifier (LNA) (not shown) for the receive path. The RFFE module 230 may include control circuitry 270 for controlling switches within the RFFE module 230 or for controlling the bias voltage of the power amplifier 260. The control circuitry 270 of this disclosure can be used to control internal components of a communication module (e.g., the RFFE module 230). Besides control circuitry, control circuitry 270 may also be used as a term such as control unit, controller, control circuit, logic circuit, complementary metal-oxide-semiconductor (CMOS) controller, CMOS logic circuit, CMOS control circuit, control logic circuit, RFFE controller, RFFE control circuit, RFFE module control circuit, and / or terms with equivalent technical / functional meanings.

[0048] For the power supply to the components in RFFE module 230, electronic device 101 may include battery 240, power supply circuit 250, and power management integrated circuit (PMIC) (not shown) (e.g., power management module 188). Battery 240 may be used to drive RFFE module 230, power supply circuit 250, and PMIC. For example, battery 240 may provide battery voltage 245. In addition to battery voltage, terms indicating the voltage of battery 240 (e.g., battery voltage 245) may also be used, along with battery power and / or terms with equivalent technical / functional meanings. Power supply circuit 250 may be configured to supply voltage (hereinafter, supply voltage) V to power amplifier (PA) 260 of RFFE module 230. cc The power supply circuit 250 can be based on the battery voltage 245V supplied from the battery 240. BATTA supply voltage 256 is generated. For example, the power supply circuit 250 can generate the supply voltage 256 by increasing and / or decreasing the battery voltage 245. To generate the supply voltage 256, the power supply circuit 250 may include at least one circuit for DC-DC conversion. For example, the power supply circuit 250 may include a buck converter circuit, a boost converter circuit, and a regulator for envelope tracking (ET). The boost converter circuit can be used to supply a voltage higher than the battery voltage 245, and the buck converter circuit can be used to supply a voltage lower than the battery voltage 245. The power supply circuit 250 can provide the supply voltage 256 to the power amplifier 260 based on the buck converter circuit and the boost converter circuit. For example, the power supply circuit 250 can provide the supply voltage 256 to the power amplifier 260 based on APT. APT is a technique for supplying power to the power amplifier 260 by a specified amplitude via DC-DC conversion. The power supply circuit 250 can provide the supply voltage 256 to the power amplifier 260 based on the buck converter circuit, the boost converter circuit, and the regulator. For example, power supply circuit 250 can provide supply voltage 256 to power amplifier 260 based on ET. ET is a technique for supplying power to power amplifier 260 at an amplitude corresponding to the envelope of the transmitted signal. As a term referring to the voltage (e.g., supply voltage 256) applied to power amplifier 260 of this disclosure, in addition to supply voltage, terms such as supply power, amplifier power, operating voltage for the power amplifier, operating power, power amplifier power, and / or terms with equivalent technical / functional meanings may also be used.

[0049] The PMIC can be used to supply power to the RF transceiver 220. As an example, the PMIC can supply the RF transceiver 220 with a voltage equal to or less than approximately 2V. As a non-limiting example, the PMIC can supply power to the low-noise amplifier (LNA) within the RFFE module 230. As an example, the PMIC can supply the LNA with a voltage equal to or less than approximately 2V.

[0050] RFFE module 230 can receive multiple power supplies for components within RFFE module 230. For example, RFFE module 230 can receive a supply voltage 256 applied to power amplifier 260. For example, RFFE module 230 can receive a battery voltage 245 for the operation of control circuit 270. For example, RFFE module 230 can receive a voltage for an LNA (not shown) within RFFE module 230. For example, control circuit 270 of RFFE module 230 can be configured to control the bias voltage of power amplifier 260 of RFFE module 230 or logic circuitry and / or at least one switch within RFFE module 230. Therefore, control circuit 270 may need to supply a voltage with sufficient amplitude. Due to the reduction in battery voltage 245 caused by the use of battery 240, control circuit 270 may have difficulty operating properly if battery voltage 245 is equal to or less than a predetermined threshold (hereinafter, voltage threshold) (e.g., about 3.4V and about 3.2V). For example, because the bias voltage 266 is insufficiently supplied to the power amplifier 260 via the control circuit 270, this may cause problems with the transmission performance of the electronic device 101. Specific examples will be provided through... Figures 3a to 3b Describe it.

[0051] Figure 3a An example of a control circuit (e.g., control circuit 270) representing an RFFE module (e.g., RFFE module 230). Figure 3b This indicates the relationship between the performance of the control circuitry (e.g., control circuitry 270) of the RFFE module and the power amplifier (e.g., power amplifier 260). The same reference numerals can be used for the same description.

[0052] Reference Figure 3a The control circuit 270 may include a PA bias circuit 310 (e.g., a current-to-analog converter (IDAC) circuit), logic circuitry 320, and a switching voltage supply circuit 330. If the amplitude of the voltage supplied to the control circuit 270 decreases (e.g., if the amplitude of the battery voltage 245 is below a voltage threshold), the amount of current / voltage supplied to the power amplifier 260 by the PA bias circuit 310 may be insufficient. Therefore, the PA bias circuit 310 may malfunction. If the battery voltage 245 is below a voltage threshold when supplied to the control circuit 270, the PA bias circuit 310 may not operate correctly, thus causing problems with the linearity and output of the power amplifier 260. For example, Figure 3bGraph 350 illustrates the characteristics of power amplifier 260 based on the current supplied to PA bias circuit 310. The horizontal axis of graph 350 represents input power, and the vertical axis represents output power. The magnitude of the current supplied to PA bias circuit 310 increases in the order of first line 361, second line 362, third line 363, fourth line 364, and fifth line 365. As shown in graph 350, as the current supplied to PA bias circuit 310 decreases, the gain of power amplifier 260 decreases, and the saturation level decreases.

[0053] If the amplitude of the voltage supplied to the control circuit 270 and the voltage supplied to the power amplifier 260 (e.g., supply voltage 256 V) cc If the amplitude of the voltage (e.g., if the amplitude of the battery voltage 245) is below a voltage threshold, the logic circuit controlled by logic circuit 320 and / or one or more switching modules controlled by switching voltage supply circuit 330 may malfunction. For example, components may be damaged because the switching modules do not operate at switching times. To mitigate the problems described above, this disclosure describes a technique for maintaining stable RF performance using RFFE module 230 even when the battery voltage 245 decreases.

[0054] Figure 4a , Figure 4b and Figure 4c This indicates that it includes control circuitry (e.g., Figure 2 and Figure 3a The control circuit 270) and the RFFE module (e.g., for the switching circuit that supplies voltage to the control circuit) and the switching circuit that supplies voltage to the control circuit. Figure 2 Example of RFFE module 230. The same reference numerals may be used for the same description.

[0055] Reference Figure 4a The electronic device 101 may include a processor 210, an RF transceiver 220, an RFFE module 230, a battery 240, a power supply circuit 250 (e.g., a modulator), and an antenna 290. For the components of the electronic device 101, see [reference needed]. Figure 2 In this disclosure, RFFE module 230 may refer to a module including a power amplifier (PA) 260 for RF signal 261 within the RFFE. For example, RFFE module 230 may be a PA including a power amplifier 260 for processing the transmitted signal and RF components (e.g., a duplexer, filter, or switch). For example, RFFE module 230 may be... Figure 4b The examples in the text include LNA's LPAmid. For example, RFFE module 230 could be... Figure 4c The example shown is a power amplifier module including power amplifier 260 and control circuitry for power amplifier 260.

[0056] Control circuit 270 can be used to control the switches within RFFE module 230 or to control the bias voltage of power amplifier 260. Normal operation of control circuit 270 requires a supply voltage with sufficient amplitude. Therefore, if the amplitude of battery voltage 245 is below a voltage threshold, electronic device 101 (e.g., processor 210) according to embodiments of this disclosure can supply control circuit 270 with voltage from another power source (e.g., power supply circuit 250) instead of battery voltage 245.

[0057] Because the power amplifier 260 requires a supply voltage across a wide range (e.g., a wide range from about 0.5V to 5V), a power supply circuit 250 can be used. The power supply circuit 250 may include at least one circuit for DC-DC conversion (e.g., a buck converter circuit, a boost converter circuit, or a regulator). For example, the power supply circuit 250 may generate a supply voltage 256 higher than the battery voltage 245 based on a boost converter circuit. Even if the battery voltage 245 is below a voltage threshold, the power supply circuit 250 can still generate a supply voltage 256 higher than the voltage threshold. An electronic device 101 according to an embodiment of this disclosure may use the power supply circuit 250 instead of the battery voltage 245 as the power source.

[0058] According to an embodiment, the RFFE module 230 may include a switching circuit 440. For example, the switching circuit 440 may be configured to selectively and electrically connect the battery 240 or the power supply circuit 250 to the control circuit 270. The battery voltage 245 of the battery 240 or the supply voltage 256 of the power supply circuit 250 may be supplied to the control circuit 270 via the switching circuit 440. As an example, the switching circuit 440 may include a single-pole double-throw (SPDT). A pole 441 of the switching circuit 440 may be electrically connected to a first throw 442a or a second throw 442b. The pole 441 may be electrically connected to the control circuit 270 via wiring 447. The first throw 442a may be electrically connected to the battery 240. For example, the first throw 442a may be electrically connected to the battery 240 via battery line 444 in the RFFE module 230. While the switching circuit 440 connects the first throw 442a and the pole 441, the battery voltage 245 may be supplied to the control circuit 270. The second throw 442b can be electrically connected to the power line 445, through which the power supply voltage 256 of the power supply circuit 250 is transmitted. For example, the power supply voltage 256 of the power supply circuit 250 can be supplied to the second throw 442b via the power line 445 connected to it. While the switching circuit 440 connects the second throw 442b and the pole 441, the power supply voltage 256 can be supplied to the control circuit 270 via the power line 445.

[0059] According to an embodiment, electronic device 101 (e.g., processor 210) can monitor the amplitude of battery voltage 245 of battery 240. If battery voltage 245 is higher than or equal to a voltage threshold (e.g., approximately 3.4V, 3.2V, or 3.1V), electronic device 101 can control switching circuit 440 such that battery voltage 245 is supplied to control circuit 270. For example, electronic device 101 can identify that battery voltage 245 is higher than or equal to the voltage threshold while switching circuit 440 electrically connects power supply circuit 250 and control circuit 270. Electronic device 101 can send a control signal to switching circuit 440 of RFFE module 230 to supply battery voltage 245 higher than or equal to the voltage threshold. The control signal can cause switching circuit 440 to switch. In response to the control signal, switching circuit 440 can electrically connect battery 240 and control circuit 270. If the battery voltage 245 is below a voltage threshold, the electronic device 101 can control the switching circuit 440 so that the supply voltage 256 of the power supply circuit 250 is supplied to the control circuit 270. For example, the electronic device 101 can identify that the battery voltage 245 is below the voltage threshold while the switching circuit 440 electrically connects the battery 240 and the control circuit 270. The electronic device 101 can transmit a control signal as a voltage equal to or greater than the voltage threshold to the switching circuit 440 of the RFFE module 230 to use the supply voltage 256. The control signal can cause the switching circuit 440 to switch. In response to the control signal, the switching circuit 440 can electrically connect the power supply circuit 250 and the control circuit 270.

[0060] As a reference for the switching circuit 440 used to trigger this disclosure, voltage thresholds can be indicated using various terms. In addition to voltage thresholds, voltage thresholds can also be used as terms such as battery threshold, voltage threshold, operating threshold, threshold for RFFE module operation, threshold for normal operation, guarantee threshold, minimum operating threshold, IDAC threshold, PA bias threshold, and / or terms with equivalent technical / functional meanings.

[0061] In order to continuously supply a voltage higher than or equal to a voltage threshold to the control circuit 270, it may be necessary for the amplitude of the supply voltage 256 to be higher than or equal to the voltage threshold. Therefore, the electronic device 101 can control the power supply circuit 250 to provide a supply voltage 256 higher than or equal to the voltage threshold. In addition, since the power supply circuit 250 operates based on the battery voltage 245, the electronic device 101 can control the power supply circuit 250 to keep the power supply circuit 250 in a continuously on state.

[0062] Because the transmit power of the signal (e.g., RF signal 261) of power amplifier 260 is low, a situation may occur where the supplied voltage is below a voltage threshold. According to an embodiment, electronic device 101 (e.g., processor 210) can control power supply circuit 250 such that even if the transmit power decreases, the supply voltage 256 does not fall below the voltage threshold. For example, electronic device 101 can set all supply power values ​​corresponding to a specific transmit power level to be higher than or equal to the voltage threshold using values ​​stored in memory (e.g., non-volatile memory 134). While power supply circuit 250 and control circuit 270 are connected via switching circuit 440, the supply voltage 256 of power supply circuit 250 can be maintained at or above the voltage threshold. Since the gain of power amplifier 260 does not change significantly (unless in a saturated state), even with low transmit power, output performance problems with power amplifier 260 are unlikely to occur because the supply voltage 256 is increased to be higher than or equal to the voltage threshold. Furthermore, since the electronic device 101 measures the transmit power in real time and controls the transmit power through the feedback port of the RF transceiver 220 (e.g., feedback receiver (FBRX) and coupler (not shown)), problems with the output performance of the power amplifier 260 may not occur.

[0063] According to an embodiment, switching of the switching circuit 440 can be performed based on a voltage threshold. According to an embodiment, the voltage threshold can be set to a voltage higher than or equal to the voltage required to ensure proper operation of components in the RFFE module 230. For example, the voltage threshold can be set to a voltage value higher than or equal to the voltage value required for the normal operation of the PA bias circuit 310 for control circuit 270 (e.g., 3.2V). For example, the voltage threshold can be set to a voltage value higher than or equal to the voltage value required for proper operation of switches, switching modules, and / or logic circuits within the RFFE module 230. According to an embodiment, switching of the switching circuit 440 can be controlled by the processor 210 and / or the RF transceiver 220. For example, the RF transceiver 220 can send control signals via the control interface 223 (e.g., a Mobile Industrial Processor Interface (MIPI)) based on the processor 210. The RFFE module 230 can control the switching circuit 440 based on the control signals. For example, switching of the switching circuit 440 can be based on control signals received via the RFFE bus within the RFFE module 230. As a non-limiting example, at least one logic circuit can be implemented within the RFFE module 230 to switch according to a control signal.

[0064] As a non-limiting example, when electronic device 101 is making a call or sending / receiving a signal, processor 210 may not perform the switching of switching circuit 440. For example, when a component (e.g., RFFE module 230 or power supply circuit 250) is in a sleep state, processor 210 may perform the switching of switching circuit 440. As an example, in a sleep state, processor 210 may activate power supply circuit 250 based on a wake-up request. With power supply circuit 250 activated, switching circuit 440 can transfer supply voltage 256 from power supply circuit 250 to control circuit 270.

[0065] exist Figure 4a The example provided illustrates an RFFE module 230 including a power amplifier 260, but embodiments of this disclosure are not limited to a particular type of module (e.g., PAMid). Embodiments of this disclosure can be applied to RFFE modules that include a power amplifier 260, regardless of the type of RFFE module. For example, an LPAmid, which includes an LNA for receiving signals, can also be understood as an example of RFFE module 230. In the following, through... Figure 4b The following describes a switching circuit 440 used to control the power to be supplied to the control circuit 270 located within the LPAmid.

[0066] Reference Figure 4b The electronic device 101 may include a processor 210, an RF transceiver 220, an RFFE module 230, a battery 240, a power supply circuit 250 (e.g., a modulator), and an antenna 290. For the components of the electronic device 101, see [reference needed]. Figures 2 to 4aThe RFFE module 230, as a component for transmitting signals, may include a first power amplifier 260a or a second power amplifier 260b. The RF transceiver 220 may transmit a first RF signal 261a to the first power amplifier 260a. The first RF signal 261a may be amplified by the first power amplifier 260a, and the amplified first RF signal 261a may be radiated through the antenna 290. The RF transceiver 220 may transmit a second RF signal 261b to the second power amplifier 260b. The second RF signal 261b may be amplified by the second power amplifier 260b, and the amplified second RF signal 261b may be radiated through the antenna 290. The RFFE module 230, as a component for receiving signals, may include a first low-noise amplifier 460a and / or a second low-noise amplifier 460b. Signals received through the antenna 290 may be amplified by either the first low-noise amplifier 460a or the second low-noise amplifier 460b. The amplified received signal (e.g., first received signal 461a or second received signal 461b) can be sent to RF transceiver 220. To distinguish the transmit path from the receive path, RFFE module 230 may include a first duplexer 410 and / or a second duplexer 415. For example, the first duplexer 410 may be used to distinguish the transmit frequency (e.g., uplink frequency) of the first transmit signal of the first power amplifier 260a from the receive frequency (e.g., downlink frequency) of the receive signal of the first low-noise amplifier 460a. Similarly, the second duplexer 415 may be used to distinguish the transmit frequency (e.g., uplink frequency) of the second transmit signal of the second power amplifier 260b from the receive frequency (e.g., downlink frequency) of the receive signal of the second low-noise amplifier 460b. The first output of the first low-noise amplifier 460a and the second output of the second low-noise amplifier 460b can be sent to RF transceiver 220. As a non-limiting example, RFFE module 230 may include switch 425. Switch 425 can be configured to control whether the first output and the second output are sent to the first receive port RX1 and the second receive port RX2 of the RF transceiver 220, respectively, or whether the second output and the first output are sent to the first receive port RX1 and the second receive port RX2, respectively.

[0067] According to an embodiment, the RFFE module 230 may include a path switch 420. The path switch 420 may be configured to select, from a plurality of transmit paths of the RFFE module 230, the transmit path for a transmit signal to be transmitted via the antenna 290. The path switch 420 may be configured to electrically connect one of the outputs of the first duplexer 410 and the second duplexer 415 to the coupler 430 and the antenna 290. For example, depending on the state of the path switch 420, one of a first transmit signal (e.g., an amplified first RF signal) and a second transmit signal (e.g., an amplified second RF signal) may be radiated through the antenna 290. For example, depending on the state of the path switch 420, the signal received through the antenna 290 may be provided to either a first low-noise amplifier 460a or a second low-noise amplifier 460b.

[0068] According to an embodiment, the RFFE module 230 may include a coupler 430. The coupler 430 may be configured to transmit a portion of the transmit signal to be transmitted via antenna 290 to the RF transceiver 220 via feedback path 431. The RF transceiver 220 may receive the signal fed back via feedback path 431 via the coupler 430. For example, the RF transceiver 220 may include a feedback receive port (FBRX) for feedback path 431. Electronic device 101 (e.g., processor 210) may control the transmit power via the feedback port (e.g., feedback receive (FBRX)) and the coupler 430 of the RF transceiver 220. According to an embodiment, because the transmit power is controlled in real time via the coupler 430, the output performance of the power amplifier 260 can be maintained even if the supply voltage 256 to the power amplifier 260 increases due to the power supply to the switching circuit 440.

[0069] According to an embodiment, electronic device 101 may include PMIC 480. PMIC 480 may be used to provide power to RF transceiver 220. PMIC 480 may obtain battery voltage 245 through wiring 448. PMIC 480 may generate a supply voltage (e.g., voltage 481 or voltage 486) based on battery voltage 245. For example, PMIC 480 may supply voltage 481 (e.g., about 2V) to RF transceiver 220 for driving RF transceiver 220. For example, PMIC 480 may supply voltage 486 (e.g., about 1.8V) to low-noise amplifiers (e.g., first low-noise amplifier 460a or second low-noise amplifier 460b) within RFFE module 230.

[0070] According to an embodiment, control circuit 270 may be configured to control the bias voltage of the power amplifier (e.g., the first power amplifier 260a or the second power amplifier 260b) of RFFE module 230, or logic circuitry within RFFE module 230 and / or at least one switch (e.g., path switch 420 and / or switch 425). For example, control circuit 270 may be configured to control the operation of path switch 420 or supply voltage to path switch 420 via control path 472. For example, control circuit 270 may be configured to control the operation of switch 425 or supply voltage to switch 425 via control path 474. For example, control circuit 270 may be configured to provide bias voltage to the first power amplifier 260a and / or the second power amplifier 260b via control path 476. Since power amplifier 260 operates over a wide range of voltages, control circuit 270 needs to receive a voltage higher than or equal to a specific value (e.g., about 3V) to stably supply the bias voltage. To supply a voltage higher than or equal to a specific value to the control circuit 270, the electronic device 101 may use the power supply circuit 250 instead of the PMIC 480. The switching circuit 440 may be configured to selectively and electrically connect either the battery 240 or the power supply circuit 250 to the control circuit 270. The battery voltage 245 of the battery 240 or the supply voltage 256 of the power supply circuit 250 may be supplied to the control circuit 270 via the switching circuit 440.

[0071] exist Figure 4b The example illustrates a transmit and receive path for a frequency division duplex (FDD) band used to distinguish uplink and downlink in the frequency domain, but embodiments of this disclosure are not limited thereto. To switch between transmit and receive paths for a time division duplex (TDD) band, the RFFE module 230 may include a switching circuit instead of the first duplexer 410 or the second duplexer 415.

[0072] Not only such as Figure 4b The LPAMid module in the example, a power amplifier module (e.g., a PA module) implemented separately from RF components (e.g., duplexers or filters), can be understood as an example of RFFE module 230. A transmission path from RF transceiver 220 to antenna 290 can be formed by including a power amplifier and a separate RFFE module. In the following, through... Figure 4c The following describes a switching circuit 440 used to control the power to be supplied to the control circuit 270 located within the power amplifier module.

[0073] Reference Figure 4c, the electronic device 101 may include a processor 210, an RF transceiver 220, a power amplifier module 423, a FEMid 491, a battery 240, a power supply circuit 250 (e.g., a modulator), and an antenna 290. Different from Figure 4a and Figure 4b as illustrated, the RFFE may be divided into a power amplifier module 423 including a power amplifier and a FEMid 491. The antenna 290 may be electrically connected to the FEMid 491. The FEMid 491 may include RF components for signal transmission and / or an antenna switch module. For example, the FEMid 491 may include a duplexer, an RF filter, and / or a coupler.

[0074] According to an embodiment, the power amplifier module 423 may include a power amplifier 260, a control circuit 270 for the power amplifier 260, and a switch circuit 440. The control circuit 270 may be used to control switches (e.g., the switch circuit 440) within the RFFE module 230 or control the bias voltage of the power amplifier 260. The normal operation of the control circuit 270 requires a supply voltage with a sufficient amplitude. Thus, if the amplitude of the battery voltage 245 is lower than a voltage threshold, the electronic device 101 (e.g., the processor 210) according to an embodiment of the present disclosure may supply a voltage from another power source (e.g., the power supply circuit 250) to the control circuit 270 instead of the battery voltage 245. For the description of each element of the power amplifier module 423, reference may be made to Figure 4a . The switch circuit 440 may be configured to selectively and electrically connect the battery 240 or the power supply circuit 250 to the control circuit 270. The battery voltage 245 of the battery 240 or the supply voltage 256 of the power supply circuit 250 may be supplied to the control circuit 270 through the switch circuit 440.

[0075] Figure 5a , Figure 5b and Figure 5c illustrate examples of an electronic device (e.g., the electronic device 101) including an RFFE module (e.g., the RFFE module 230) connected to an inductor.

[0076] Referring to Figure 5a , the electronic device 101 may include a processor 210, an RF transceiver 220, an RFFE module 230, a battery 240, a power supply circuit 250 (e.g., a modulator), and an antenna 290. For the components of the electronic device 101, reference may be made to Figure 4aThe RFFE module 230 may include control circuitry 270. Control circuitry 270 may be used to control a switch within the RFFE module 230 or to control the bias voltage of the power amplifier 260. If the amplitude of the battery voltage 245 is below a voltage threshold, an electronic device 101 (e.g., processor 210) according to an embodiment of this disclosure may supply the control circuitry 270 with a voltage from another power source (e.g., power supply circuitry 250) instead of the battery voltage 245. According to an embodiment, the RFFE module 230 may include a switching circuitry 440. Switching circuitry 440 may be configured to selectively and electrically connect the battery 240 or the power supply circuitry 250 to the control circuitry 270.

[0077] According to an embodiment, the power supply circuit 250 can be connected to the switching circuit 440 via power line 445. The supply voltage 256 of the power supply circuit 250 can be supplied to the control circuit 270 via power line 445. Simultaneously, the power supply circuit 250 may introduce noise when generating the supply voltage 256. For example, noise may occur along with the supply voltage 256 due to switching during ET operation and / or APT operation of the power supply circuit 250. If noise is introduced into the control circuit 270, the performance of the control circuit 270 may degrade. Additionally, as a non-limiting example, if the control circuit 270 includes a power amplifier (e.g., a pre-driver amplifier), the influx of external noise may cause even more severe performance degradation. According to an embodiment, the switching circuit 440 can be connected to an inductor 510 to reduce this external noise. The switching circuit 440 can be connected to the control circuit 270 via the inductor 510. For example, the switching circuit 440 may include an SPDT. The pole 441 of the switching circuit 440 can be connected to the inductor 510 via wiring 447. Inductor 510 can be connected to control circuitry 270. According to an embodiment, inductor 510 can be located externally to RFFE module 230. To connect to inductor 510 located externally to RFFE module 230, wiring 447 of switching circuitry 440 can be used. Wiring 447 can be electrically connected to the externally located inductor 510 through at least one port of RFFE module 230.

[0078] Figure 5a The implementation of the inductor 510 described herein can be applied in essentially the same way not only to Figure 4a The RFFE 230 example in the text can also be applied to... Figure 4b and Figure 4c The example RFFE is shown in the image.

[0079] Reference Figure 5bThe electronic device 101 may include a processor 210, an RF transceiver 220, an RFFE module 230, a battery 240, a power supply circuit 250 (e.g., a modulator), and an antenna 290. For the components of the electronic device 101, see [reference needed]. Figure 4b The description is as follows. According to an embodiment, the switching circuit 440 of the RFFE module 230 can be connected to the inductor 510. The switching circuit 440 can be electrically connected to the control circuit 270 via the inductor 510. For example, the switching circuit 440 may include an SPDT. The RFFE module 230 may include at least one port for electrically connecting the pole 441 of the switching circuit 440 and the inductor 510. Within the RFFE module 230, at least one port of the RFFE module 230 can electrically connect the pole 441 and the control circuit 270 via wiring 447. The inductor 510 disposed outside the RFFE module 230 can be connected to at least one port of the RFFE module 230. Wiring 447 can be electrically connected to the externally disposed inductor 510 via at least one port of the RFFE module 230.

[0080] Reference Figure 5c Electronic device 101 may include processor 210, RF transceiver 220, power amplifier module 423, FEMD 491, battery 240, power supply circuitry 250 (e.g., modulator), and antenna 290. For the components of electronic device 101, see [reference needed]. Figure 4b The description is as follows. According to an embodiment, the switching circuit 440 of the power amplifier module 423 can be connected to the inductor 510. The switching circuit 440 can be electrically connected to the control circuit 270 via the inductor 510. For example, the switching circuit 440 may include an SPDT. The power amplifier module 423 may include at least one port for electrically connecting the pole 441 of the switching circuit 440 and the inductor 510. Within the power amplifier module 423, at least one port of the power amplifier module 423 can electrically connect the pole 441 and the control circuit 270 via wiring 447. The inductor 510 disposed externally in the power amplifier module 423 can be connected to at least one port of the power amplifier module 423. Wiring 447 can be electrically connected to the externally disposed inductor 510 via at least one port of the power amplifier module 423.

[0081] exist Figures 5a to 5c The diagram shows an inductor 510 disposed outside the RFFE module 230, but embodiments of this disclosure are not limited thereto. According to another embodiment, the inductor 510 may be located inside the RFFE module 230. For example, to utilize external space, the inductor 510 may be disposed within the RFFE module 230.

[0082] Figure 6This illustrates an example of an electronic device (e.g., electronic device 101) that includes multiple RFFE modules and multiple power supply circuits. The same reference numerals may be used for the same description.

[0083] Reference Figure 6 Electronic device 101 may include a processor 210, an RF transceiver 220, and a battery 240. To support various frequency combinations, electronic device 101 may include multiple TX / RX modules. For example, electronic device 101 may include a first RFFE module 230 and a second RFFE module 630. The first RFFE module 230 may be connected to a first antenna 290. The second RFFE module 630 may be connected to a second antenna 690. For each TX / RX module, electronic device 101 may include multiple power supply circuits (e.g., modulators). For example, electronic device 101 may include a first power supply circuit 250 for the first RFFE module 230 and a second power supply circuit 650 for the second RFFE module 630. The first RFFE module 230 may be configured to transmit a transmit signal (e.g., a first RF signal 261) from the RF transceiver 220 to the antenna 290. The first RFFE module 230 may include a first power amplifier 260 for the first RF signal 261. The first RF signal 261 from the RF transceiver 220 may be amplified by the first power amplifier 260. The first RFFE module 230 may include a first control circuit 270 for controlling a switch within the first RFFE module 230 or for controlling a bias voltage of the first power amplifier 260. The first RFFE module 230 may include a first switching circuit 440 for the first control circuit 270. A first power supply circuit 250 may be configured to supply a first supply voltage 256 V to the first power amplifier 260 of the first RFFE module 230. cc1 The first power supply circuit 250 can generate a first supply voltage 256 based on the battery voltage 245 supplied from the battery 240. According to an embodiment, the RF transceiver 220 can control at least a portion of the first RFFE module 230 via a control interface 223 (e.g., a Mobile Industrial Processor Interface (MIPI)). According to an embodiment, the RF transceiver 220 can control at least a portion of the first power supply circuit 250 via a control interface 225 (e.g., MIPI).

[0084] The second RFFE module 630 can be configured to transmit a transmit signal (e.g., a second RF signal 661) from the RF transceiver 220 to the antenna 690. The second RFFE module 630 may include a second power amplifier 660 for the second RF signal 661. The second RF signal 661 from the RF transceiver 220 may be amplified by the second power amplifier 660. The second RFFE module 630 may include a second control circuit 670 for controlling a switch within the second RFFE module 630 or for controlling a bias voltage of the second power amplifier 660. The second RFFE module 630 may include a second switching circuit 640 for the second control circuit 670. A second power supply circuit 650 can be configured to supply a second supply voltage 656 V to the second power amplifier 660 of the second RFFE module 630. cc2 The second power supply circuit 650 can generate a second supply voltage 656 based on the battery voltage 245 supplied from the battery 240. According to an embodiment, the RF transceiver 220 can control at least a portion of the second RFFE module 630 via a control interface 623 (e.g., MIPI). According to an embodiment, the RF transceiver 220 can control at least a portion of the second power supply circuit 650 via a control interface 625 (e.g., MIPI).

[0085] For power efficiency, the first power supply circuit 250 can generate a first supply voltage 256 to the first power amplifier 260 based on either the APT or ET method. For power efficiency, the second power supply circuit 650 can generate a second supply voltage 656 to the second power amplifier 660 based on either the APT or ET method. APT is a technique for supplying a fixed amplitude voltage via a DC-DC converter. ET is a technique for tracking the amplitude of an RF signal and supplying a voltage corresponding to the envelope. If the modulator supplying the voltage to the power amplifier in the RFFE module... Figure 4a , Figure 4b and Figure 4c as well as Figure 5a , Figure 5b and Figure 5c The control circuit in the RFFE module needs to supply voltage, and the amplitude of the supplied voltage needs to be limited. For example, since a stable power supply is required to ensure the normal operation of the control circuit, the voltage should be generated with an amplitude higher than or equal to a voltage threshold. If the supply voltage applied to the power amplifier (e.g., V...) ccIf the supply voltage is too low, the control circuitry may malfunction, potentially leading to unstable performance in the control of the RFFE module. If the supply voltage applied to the power amplifier is too high, unnecessary power consumption may occur at saturation levels. To address the problems described above, an electronic device 101 according to an embodiment of this disclosure may include an RFFE structure in which a first power supply circuit 250 is connected to one end of a second switching circuit 640 of a second RFFE module 630 (e.g., a second throw 642b), and a second power supply circuit 650 is connected to one end of a first switching circuit 440 of a first RFFE module 230 (e.g., a second throw 442b).

[0086] According to an embodiment, the first switching circuit 440 can be configured to selectively connect the output of either the battery 240 or the second power supply circuit 650 to the first control circuit 270. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) can control the first switching circuit 440 to supply the second supply voltage 656 of the second power supply circuit 650 to the first control circuit 270. If the battery voltage 245 is above or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) can control the first switching circuit 440 to supply the battery voltage 245 to the first control circuit 270. The battery voltage 245 of the battery 240 or the second supply voltage 656 of the second power supply circuit 650 can be supplied to the first control circuit 270 via the first switching circuit 440. As a non-limiting example, the first switching circuit 440 can be electrically connected to the first control circuit 270 via an inductor (e.g., inductor 510). As an example, the first switching circuit 440 may include an SPDT (SPDT). The terminal 441 of the first switching circuit 440 can be electrically connected to either the first throw 442a or the second throw 442b. Terminal 441 can be electrically connected to the first control circuit 270 via wiring 447. The first throw 442a can be electrically connected to the battery 240. For example, the first throw 442a can be electrically connected to the battery 240. While the first switching circuit 440 connects the first throw 442a and terminal 441, the battery voltage 245 can be supplied to the first control circuit 270. The second throw 442b can be electrically connected to the second power supply circuit 650. For example, the second throw 442b can be electrically connected to the second power supply circuit 650 via second wiring 692. While the first switching circuit 440 connects the second throw 442b and terminal 441, the second supply voltage 656 can be supplied to the first control circuit 270 via second wiring 692.

[0087] According to an embodiment, the second switching circuit 640 can be configured to selectively connect the output of the battery 240 or the first power supply circuit 250 to the second control circuit 670. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) can control the second switching circuit 640 to supply the first supply voltage 256 of the first power supply circuit 250 to the second control circuit 670. If the battery voltage 245 is above or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) can control the second switching circuit 640 to supply the battery voltage 245 to the second control circuit 670. The battery voltage 245 of the battery 240 or the first supply voltage 256 of the first power supply circuit 250 can be supplied to the second control circuit 670 via the second switching circuit 640. As a non-limiting example, the second switching circuit 640 can be electrically connected to the second control circuit 670 via an inductor (e.g., inductor 510). As an example, the second switching circuit 640 may include an SPDT. The terminal 641 of the second switching circuit 640 can be electrically connected to either the first throw 642a or the second throw 642b. Terminal 641 can be electrically connected to the second control circuit 670 via wiring 647. The first throw 642a can be electrically connected to the battery 240. While the second switching circuit 640 connects the first throw 642a and terminal 641, it can supply battery voltage 245 to the second control circuit 670. The second throw 642b can be electrically connected to the first power supply circuit 250. For example, the second throw 642b can be electrically connected to the first power supply circuit 250 via first wiring 691. While the second switching circuit 640 connects the second throw 642b and terminal 641, it can supply a first supply voltage 256 to the second control circuit 670 via first wiring 691.

[0088] pass Figure 6 The example RFFE structure (e.g., first wiring 691 or second wiring 692) even when the power amplifier (e.g., first power amplifier 260) operating in the RFFE module (e.g., first RFFE module 230) is supplied with a voltage (e.g., first supply voltage V). cc1 Even if the voltage is not increased to a specific level (e.g., above or equal to a voltage threshold), the control circuitry (e.g., first control circuitry 270) of the RFFE module (e.g., first RFFE module 230) can still operate normally. The supply voltage (e.g., second supply voltage V) cc2The power supply circuit can be stably applied to the control circuit (e.g., the second control circuit 670) via another power supply circuit (e.g., the second power supply circuit 650). Additionally, the power supply circuit for the RFFE module (e.g., the first RFFE module 230) generates a supply voltage (e.g., the first supply voltage V) for the power amplifier (e.g., the first power amplifier 260) in a predetermined manner. cc1 Therefore, the current consumption gain can be obtained from the RFFE module (e.g., the first RFFE module 230).

[0089] Figure 7 This represents an example of an electronic device (e.g., electronic device 101) used to supply the power amplifier (e.g., power amplifier 260) to each RFFE module. For the efficiency of the power supply, in Figure 7 The diagram describes the RFFE structure in which the supply voltage of one of the power supply circuits is transmitted to the control circuit of other RFFE modules. The same reference numerals can be used for the same description.

[0090] Reference Figure 7 Electronic device 101 may include processor 210, RF transceiver 220, or battery 240. To support various frequency combinations, electronic device 101 may include multiple TX / RX modules (e.g., RFFE modules). For example, electronic device 101 may include a first RFFE module 731, a second RFFE module 732, and a third RFFE module 733. RF transceiver 220 can control each RFFE module via a control interface (e.g., MIPI). For example, RF transceiver 220 can control the first RFFE module 731 via a first control signal 711. RF transceiver 220 can control the second RFFE module 732 via a second control signal 712. RF transceiver 220 can control the third RFFE module 733 via a third control signal 713.

[0091] For each of the multiple RFFE modules, refer to Figures 2 to 6The description is as follows. Each RFFE module may include a power amplifier configured to amplify the RF signal from RF transceiver 220. For example, the first RFFE module 731 may include a first power amplifier 761 configured to amplify a first RF signal 751. The second RFFE module 731 may include a second power amplifier 762 configured to amplify a second RF signal 752. The third RFFE module 733 may include a third power amplifier 763 configured to amplify a third RF signal 753. Each RFFE module may be connected to an antenna. The signal amplified by the power amplifier of the RFFE module can be radiated to the outside through the antenna connected to the RFFE module. For example, the signal amplified by the first power amplifier 761 (e.g., the amplified first RF signal 751) can be radiated to the outside through the first antenna 781 connected to the first RFFE module 731. The signal amplified by the second power amplifier 762 (e.g., the amplified second RF signal 752) can be radiated to the outside through the second antenna 782 connected to the second RFFE module 732. The signal amplified by the third power amplifier 763 (e.g., the amplified third RF signal 753) can be radiated to the outside via the third antenna 783 connected to the third RFFE module 733. Each RFFE module may include control circuitry for controlling logic circuitry and / or switches within the corresponding RFFE module, or control circuitry for controlling the bias voltage supplied to the power amplifier of the corresponding RFFE module. For example, the first RFFE module 731 may include a first control circuitry 771. The second RFFE module 732 may include a second control circuitry 772. The third RFFE module 733 may include a third control circuitry 773. To adaptively change the power supplied to the control circuitry, each RFFE module may include a switching circuitry for the control circuitry. For example, the first RFFE module 731 may include a first switching circuitry 741 for the first control circuitry 771. The second RFFE module 732 may include a second switching circuitry 742 for the second control circuitry 772. The third RFFE module 733 may include a third switching circuitry 743 for the third control circuitry 773.

[0092] For each TX module, the electronic device 101 may include multiple power supply circuits (e.g., modulators). For example, the electronic device 101 may include a first power supply circuit 251 for a first RFFE module 731, a second power supply circuit 252 for a second RFFE module 732, and a third power supply circuit 253 for a third RFFE module 733. The first power supply circuit 251 may be configured to apply a first supply voltage 721 to a first power amplifier 761. The second power supply circuit 252 may be configured to apply a second supply voltage 722 to the second power amplifier 762. The third power supply circuit 253 may be configured to apply a third supply voltage 723 to the third power amplifier 763.

[0093] According to an embodiment, the first supply voltage 721 of the first power supply circuit 251 can be supplied not only to the first switching circuit 741 of the first RFFE module 731, but also to the second switching circuit 742 of the second RFFE module 732 and the third switching circuit 743 of the third RFFE module 733. The electronic device 101 can supply the first supply voltage 721 to the switching circuit of each RFFE module via wiring 790 originating from the first power supply circuit 251. For example, the first branch 791 of wiring 790 can be connected to the first switching circuit 741. While the first control circuit 771 is connected to the first branch 791 via the first switching circuit 741, the first supply voltage 721 can be transmitted to the first control circuit 771 via the first branch 791. The second branch 792 of wiring 790 can be connected to the second switching circuit 742. While the second control circuit 772 is connected to the second branch 792 via the second switching circuit 742, the first supply voltage 721 can be transmitted to the second control circuit 772 via the second branch 792. The third branch 793 of wiring 790 can be connected to the third switching circuit 743. While the third control circuit 773 is connected to the third branch 793 through the third switching circuit 743, the first power supply voltage 721 can be transmitted to the third control circuit 773 through the third branch 793.

[0094] According to an embodiment, electronic device 101 (e.g., processor 210) can control the first power supply circuit 251 such that the first supply voltage 721 is always higher than or equal to a voltage threshold, while the first supply voltage 721 is supplied to each control circuit. For example, electronic device 101 can set all supply power values ​​corresponding to a specific transmission power level in the first power supply circuit 251 to be higher than or equal to the voltage threshold using values ​​stored in memory (e.g., non-volatile memory 134).

[0095] According to an embodiment, the first switching circuit 741 may be configured to selectively and electrically connect the battery 240 or the first power supply circuit 251 to the first control circuit 771. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) may control the first switching circuit 741 to supply a first supply voltage 721 of the first power supply circuit 251 to the first control circuit 771. If the battery voltage 245 is above or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) may control the first switching circuit 741 to supply the battery voltage 245 to the first control circuit 771. According to an embodiment, the second switching circuit 742 may be configured to selectively and electrically connect the battery 240 or the first power supply circuit 251 to the second control circuit 772. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) may control the second switching circuit 742 to supply the first supply voltage 721 of the first power supply circuit 251 to the second control circuit 772. If the battery voltage 245 is higher than or equal to a voltage threshold, the electronic device 101 (e.g., processor 210) can control the second switching circuit 742 to supply the battery voltage 245 to the second control circuit 772. According to an embodiment, the third switching circuit 743 can be configured to selectively and electrically connect the battery 240 or the first power supply circuit 251 to the third control circuit 773. According to an embodiment, if the battery voltage 245 is lower than a voltage threshold, the electronic device 101 (e.g., processor 210) can control the third switching circuit 743 to supply the first supply voltage 721 of the first power supply circuit 251 to the third control circuit 773. If the battery voltage 245 is higher than or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) can control the third switching circuit 743 to supply the battery voltage 245 to the third control circuit 773.

[0096] If the battery voltage 245 of battery 240 is lower than the threshold, then... Figure 7Wiring 790 allows the first power supply voltage 721 to be supplied to each control circuit via the first power supply circuit 251. While the first power supply voltage 721 is being supplied to the second control circuit 772, the second power supply circuit 252 can independently supply a second power supply voltage 722 to the second power amplifier 762. Since the processor 210 can freely control the supply voltage of the second power supply circuit 252, the current consumption of the second power amplifier 762 of the second RFFE module 732 can be reduced. For example, while the first power supply voltage 721 is being supplied to the third control circuit 773, the third power supply circuit 253 can independently supply a third power supply voltage 723 to the third power amplifier 763. Since the processor 210 can freely control the supply voltage of the third power supply circuit 253, the current consumption of the third power amplifier 763 of the third RFFE module 733 can be reduced.

[0097] exist Figure 7 The diagram shows that the first branch 791 of the wiring 790 is located outside the first RFFE module 731, but the embodiments of this disclosure are not limited thereto. In order to supply the first power supply voltage 721 to the first switching circuit 741, the wiring sharing the output of the first power supply circuit 251 can be located inside the first RFFE module 731.

[0098] Figure 8 This represents an example of an electronic device (e.g., electronic device 101) used to supply the power amplifier (e.g., power amplifier 260) to each RFFE module. For the efficiency of the power supply, in Figure 8 The text describes one of the power supply power lines (e.g., Figure 7 The supply voltage of the first power supply circuit 251 is transmitted to the RFFE structure of the control circuits of other RFFE modules (e.g., the second control circuit 772 and the third control circuit 773). The same reference numerals can be used for the same description.

[0099] Reference Figure 8 Electronic device 101 may include processor 210, RF transceiver 220, or battery 240. To support various frequency combinations, electronic device 101 may include multiple TX / RX modules (e.g., RFFE modules). Figure 8 The components of the electronic device 101 can be referred to Figure 7 The description. In Figure 7An example has been described in which wiring (e.g., wiring 790) originating from the first power supply circuit 251 connects to the switching circuit of each RFFE module. However, as the distance between RFFE modules increases, the wiring may become longer. As a non-limiting example, in a foldable electronic device including a first housing and a second housing, the first RFFE module (e.g., first RFFE module 731) may be disposed in the first housing and the second RFFE module (e.g., second RFFE module 732) may be disposed in the second housing. The extended wiring due to structural issues may cause parasitic resonances during ET operation of the power supply circuit. Furthermore, as the wiring length increases, noise increases and signal transmission delays occur, thus potentially leading to performance degradation of the RFFE modules. Figure 8 The description specifies that each switching circuit of the RFFE module is supplied with the same power supply voltage, but it can have a different voltage than the standard voltage. Figure 7 The example shows an RFFE structure with a shorter wiring length.

[0100] According to an embodiment, the first RFFE module 731 may include a voltage regulator 810 (e.g., an LDO (low dropout)). A first switching circuit 741 may provide a first supply voltage 721 to the first power supply circuit 251, not only to the first switching circuit 741 of the first RFFE module 731, but also to the second switching circuit 742 of the second RFFE module 732 and the third switching circuit 743 of the third RFFE module 733. The first supply voltage 721 provided to the first control circuit 771 via the voltage regulator 810 of the electronic device 101 may be provided to the second switching circuit 742 and the third switching circuit 743. The first switching circuit 741 may be connected to the voltage regulator 810. For example, the voltage regulator 810 may include at least one active element (e.g., a transistor). The voltage regulator 810 may be configured to output a stable voltage even under low input / output voltage conditions. The voltage regulator 810 may be configured to obtain the voltage supplied to the first control circuit 771 via the first switching circuit 741. For example, regulator 810 can obtain a first supply voltage 721 or a battery voltage 245. Regulator 810 can output an output voltage based on the obtained voltage.

[0101] The voltage regulator 810 can be connected to the second switching circuit 742 and the third switching circuit 743 via wiring 890. The output voltage of the voltage regulator 810 can be transmitted to either the second switching circuit 742 or the third switching circuit 743 via wiring 890. The first branch 891 of wiring 890 can be connected to the second switching circuit 742. While the second control circuit 772 is connected to the first branch 891 via the second switching circuit 742, the first supply voltage 721 can be transmitted to the control circuit 742 via the first branch 891. Since the voltage threshold for triggering the switching of the first switching circuit 741 is the same as the voltage threshold for triggering the switching of the second switching circuit 741, the first supply voltage 721 can be supplied to the second control circuit 772 simultaneously with the first control circuit 771. For example, the second branch 892 of wiring 890 can be connected to the third switching circuit 743. While the third control circuit 773 is connected to the second branch 892 via the third switching circuit 743, the first supply voltage 721 can be transmitted to the third control circuit 773 via the second branch 892. Since the voltage threshold for triggering the switching of the first switching circuit 741 and the voltage threshold for triggering the switching of the third switching circuit 743 are the same, the first supply voltage 721 can be supplied to the third control circuit 773 at the same time as it is supplied to the first control circuit 771.

[0102] According to an embodiment, the first switching circuit 741 can be configured to selectively connect the output of the battery 240 or the first power supply circuit 251 to the first control circuit 771. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) can control the first switching circuit 741 to supply the first power supply voltage 721 of the first power supply circuit 251 to the first control circuit 771. If the battery voltage 245 is above or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) can control the first switching circuit 741 to supply the battery voltage 245 to the first control circuit 771.

[0103] According to an embodiment, the second switching circuit 742 can be configured to selectively connect the battery 240 or the first branch 891 of the wiring 890 to the second control circuit 772. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) can control the second switching circuit 742 to supply a first supply voltage 721 of the first power supply path 251 to the second control circuit 772. If the battery voltage 245 is above or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) can control the second switching circuit 742 to supply the battery voltage 245 to the second control circuit 772.

[0104] According to an embodiment, the third switching circuit 743 can be configured to selectively connect the battery 240 or the second branch 892 of the wiring 890 to the third control circuit 773. According to an embodiment, if the battery voltage 245 is below a voltage threshold, the electronic device 101 (e.g., processor 210) can control the third switching circuit 743 to supply a first supply voltage 721 of the first power supply circuit 251 to the third control circuit 773. If the battery voltage 245 is above or equal to the voltage threshold, the electronic device 101 (e.g., processor 210) can control the third switching circuit 743 to supply the battery voltage 245 to the third control circuit 773.

[0105] Due to the passage Figure 8 The RFFE structure in the example (e.g., wiring 890) reduces the length of the wiring directly connected to the first power supply circuit 251, thus... Figure 7 Compared to the RFFE structure in the example, it can provide superior communication performance during ET operation.

[0106] Figure 9 This describes the operation flow of an electronic device (e.g., electronic device 101) used to supply voltage to the control circuit (e.g., control circuit 270) of an RFFE module (e.g., RFFE module 230).

[0107] Reference Figure 9 In operation 901, electronic device 101 (e.g., processor 210) can obtain information corresponding to a first voltage (e.g., battery voltage 245) of the battery (e.g., battery 240). For example, electronic device 101 can monitor the battery voltage 245 of battery 240.

[0108] In operation 903, electronic device 101 (e.g., processor 210) can identify whether a first voltage is greater than a voltage threshold. The first voltage may indicate the battery voltage 245. Because use of battery 240 causes a decrease in battery voltage 245, if battery voltage 245 drops to less than or equal to a certain threshold (hereinafter, the voltage threshold) (e.g., about 3.4V or about 3.2V), control circuitry 270 may have difficulty operating properly. The voltage threshold can be set to be higher than or equal to the voltage required for proper operation of components of the RFFE module (e.g., RFFE module 230) of electronic device 101. For example, for proper operation of the PA bias circuitry 310 of control circuitry 270, the voltage threshold can be set to be higher than or equal to a voltage value (e.g., 3.2V). For example, the voltage threshold can be set to be higher than or equal to the voltage value required for proper operation of switches, switching modules, and / or logic circuitry within RFFE module 230.

[0109] Electronic device 101 can perform operation 905 when the first voltage is greater than a voltage threshold. Electronic device 101 can perform operation 907 when the first voltage is not greater than the voltage threshold.

[0110] In operation 905, electronic device 101 (e.g., processor 210) can control a switching circuit (e.g., switching circuit 440) to supply a first voltage to the control circuit (e.g., control circuit 270) of the RFFE module (e.g., RFFE module 230). Since the RFFE module can perform normal operation using the battery voltage 245 of battery 240, electronic device 101 can control switching circuit 440 such that battery voltage 245 is supplied to control circuit 270. According to an embodiment, if the first voltage is greater than a voltage threshold while switching circuit 440 is connected to power supply circuit 250, processor 210 can control RF transceiver 220 to send a control signal for switching switching circuit 440. Switching circuit 440 can then connect control circuit 270 to battery 240 based on the control signal.

[0111] In operation 907, electronic device 101 (e.g., processor 210) can control a switching circuit (e.g., switching circuit 440) to supply a second voltage to a control circuit (e.g., control circuit 270). According to an embodiment, if the first voltage is less than or equal to a voltage threshold while the switching circuit 440 is connected to the battery 240, the processor 210 can transmit a control signal for switching the switching circuit 440 via the RF transceiver 220. The switching circuit 440 can then connect the control circuit 270 to the power supply circuit 250 based on the control signal.

[0112] According to one embodiment, the power supply circuit can be configured to provide a supply voltage to the power amplifier (e.g., power amplifier 260) of the RFFE module. According to another embodiment, the power supply circuit can be configured to provide a supply voltage to another power amplifier of another RFFE module besides the power amplifier of the RFFE module (e.g., power amplifier 260). Even if the first voltage becomes lower than a voltage threshold, the electronic device 101 can remain on while the electronic device 101 is powered by the supply voltage V applied to the power amplifier. cc The RFFE module is driven normally.

[0113] According to an embodiment, electronic device 101 (e.g., processor 210) can change the voltage value to be supplied to the power amplifier (e.g., power amplifier 260) of the RFFE module (e.g., RFFE module 230). Electronic device 101 can change the voltage value to be supplied to the power amplifier 260 of the RFFE module 230 based on the connection state of the switching circuit 440. For example, electronic device 101 can set all power supply values ​​corresponding to a specific transmit power level to be higher than or equal to a voltage threshold by using values ​​stored in memory (e.g., non-volatile memory 134). While the switching circuit 440 is connected to the battery 240, at least a portion of the voltage value to be supplied to the power amplifier 260 (e.g., the first power supply voltage value in Table 1) can be lower than the voltage threshold (e.g., 3.2V). While the switching circuit 440 is connected to the power supply circuit 250, all the voltage values ​​to be supplied to the power amplifier 260 (e.g., the second power supply voltage value in Table 1) can be higher than or equal to the voltage threshold.

[0114] [Table 1]

[0115] Electronic device 101 can change the supply voltage value for operation of power amplifier 260 based on the connection state of switching circuit 440. For example, if battery voltage 245 is below a voltage threshold, electronic device 101 can change a first supply voltage value to a second supply voltage value relative to the power supply circuit connected to switching circuit 440. If the power supply circuit supplying power to switching circuit 440 (e.g., second power supply circuit 650) is no longer supplying power to power amplifier 260 of RFFE module 230 of switching circuit 440, electronic device 101 can remain unchanged in supply voltage value relative to another power supply circuit (e.g., first power supply circuit 250). For example, electronic device 101 can maintain a first supply voltage value relative to first power supply circuit 250 and first power amplifier 260.

[0116] According to embodiments of the present disclosure, a communication module (e.g., RFFE module 230) can selectively supply a first voltage (e.g., battery voltage 245) from a battery (e.g., battery 240) and a second voltage (e.g., supply voltage 256) to a power amplifier (e.g., power amplifier 260) via a switching circuit (e.g., switching circuit 440) connected to a control circuit (e.g., control circuit 270). By adaptively supplying the first and second voltages to the control circuit based on the amplitude of the first voltage, the communication module can stably support transmission and reception even at low power without performance degradation. Therefore, an electronic device (e.g., electronic device 101) can continue to connect to the network even at low power. The effects derived from this disclosure are not limited to those described above, and any other effects not mentioned herein will be clearly understood by those skilled in the art to which this disclosure pertains, based on the following description.

[0117] In one embodiment, an electronic device 101 is provided. The electronic device 101 may include: a processor 210; a radio frequency (RF) transceiver 220; a radio frequency front-end (RFFE) module connected to the RF transceiver 220; an antenna connected to the RFFE module; a battery configured to provide a first voltage 245; and a power supply circuit configured to supply a second voltage 256, 656, or 721 to a power amplifier (PA) based on the first voltage 245. The RFFE module may include control circuitry for controlling PA bias within the RFFE module and at least one switch located within the RFFE module, as well as a switching circuitry for controlling the control circuitry. The processor 210 may be configured to control the switching circuitry to supply the control circuitry with the first voltage 245, either the first voltage 245 or the second voltage 256, 656, or 721, based on the first voltage 245 being higher than or equal to a voltage threshold. The processor 210 can be configured to control the switching circuit to supply the second voltage 256, 656 or 721 of the first voltage 245 and the second voltage 256, 656 or 721 to the control circuit based on the first voltage 245 being lower than the voltage threshold.

[0118] In one embodiment, an electronic device 101 is provided. The electronic device 101 may include: a processor 210; a radio frequency (RF) transceiver 220; a radio frequency front-end (RFFE) module connected to the RF transceiver 220; an antenna connected to the RFFE module; a battery configured to provide a first voltage 245; and a power supply circuit configured to supply a second voltage 256, 656, or 721 to a power amplifier (PA) based on the first voltage 245. The RFFE module may include control circuitry for controlling PA bias within the RFFE module and at least one switch located within the RFFE module, as well as a switching circuitry for controlling the control circuitry. The switching circuitry may be controlled according to the control of the processor 210 or the RF transceiver 220 to supply the control circuitry with the first voltage 245, which is either the first voltage 245 or the second voltage 256, 656, or 721, based on the first voltage 245 being higher than or equal to a voltage threshold. The switching circuit can be controlled by the processor 210 or the RF transceiver 220 to supply the control circuit with the second voltage 256, 656 or 721 of the first voltage 245 and the second voltage 256, 656 or 721 based on the first voltage 245 being lower than the voltage threshold.

[0119] According to an embodiment, the control circuit may include at least one of the following: a PA bias circuit for supplying a bias voltage to the PA of the RFFE module, a logic circuit for controlling at least one switch, or a power supply circuit for supplying power to at least one switch. The voltage threshold may be set to be equal to or greater than the voltage value required for the operation of components of the control circuit.

[0120] According to an embodiment, the switching circuit can be configured to selectively connect the control circuit to a first output of the battery or a second output of the power supply circuit. The switching circuit can be electrically connected to the control circuit via an inductor 510 disposed outside the RFFE module.

[0121] According to an embodiment, electronic device 101 may include: a second power supply circuit, different from the power supply circuit; a second RFFE module, different from the RFFE module, including a PA; and a second antenna connected to the second RFFE module. The RFFE module may include a second PA receiving a third voltage different from the second voltage 256, 656, or 721 from the second power supply circuit. The second RFFE module may include a second control circuit for controlling PA bias within the second RFFE module and at least one switch located within the second RFFE module, and a second switching circuit for the second control circuit.

[0122] According to an embodiment, the electronic device 101 may include: a first wiring for electrically connecting a power supply circuit to each of the RFFE module and the second RFFE module; and a second wiring for electrically connecting the second power supply circuit to each of the RFFE module and the second RFFE module.

[0123] The first wiring may include a first branch corresponding to the switching circuit of the RFFE module, originating from the power supply circuit, and a second branch corresponding to the PA of the second RFFE module, originating from the power supply circuit. The second wiring may include a third branch corresponding to the second PA of the RFFE module, originating from the second power supply circuit, and a fourth branch corresponding to the PA of the second RFFE module, originating from the second power supply circuit.

[0124] According to an embodiment, the switching circuit can be configured to supply the control circuit with one of a first battery voltage 245 and a second voltage 256, 656, or 721 of the power supply circuit. The second switching circuit can be configured to supply the second control circuit with one of the first battery voltage 245 and a third voltage of the second power supply circuit.

[0125] According to an embodiment, a third voltage can be supplied to the second PA of the RFFE module via a second power supply circuit. When the second PA supplies the third voltage to the RFFE module via the second power supply circuit while the first voltage 245 is below a voltage threshold, the second voltage 256, 656, or 721 can be supplied to the switching circuit of the RFFE module via the power supply circuit. The second power supply circuit can be configured to provide the third voltage with a fixed amplitude based on average power point tracking (APT) or with a variable amplitude based on envelope tracking (ET).

[0126] According to an embodiment, the processor 210 can be configured to acquire information corresponding to the first voltage 245, identify whether the first voltage 245 is lower than a voltage threshold, and send a control signal to the RFFE module to change the switching circuit to supply a second voltage 256, 656 or 721 to the control circuit when the first voltage 245 is lower than the voltage threshold while the first voltage 245 is supplied to the control circuit.

[0127] According to an embodiment, the processor 210 can be configured to send a control signal to the RFFE module to change the switching circuit to supply the second voltage 256, 656, or 721 to the control circuit when the first voltage 245 is higher than or equal to a voltage threshold, while the control circuit supplies the second voltage 256, 656, or 721.

[0128] According to an embodiment, the RFFE module may include a power supply circuit (PA) to which a second voltage 256, 656, or 721 is applied from the power supply circuit. The switching circuit may be configured to selectively connect the control circuitry to either the battery or the power supply circuit.

[0129] According to an embodiment, electronic device 101 may include a second power supply circuit, different from the power supply circuit; a second RFFE module, different from the RFFE module, including a second PA; and a second antenna connected to the second RFFE module. The second RFFE module may include a second control circuit for controlling PA bias within the second RFFE module and at least one switch located within the second RFFE module, and a second switching circuit for the second control circuit. The second PA may operate based on a third voltage from the second power supply circuit. The switching circuit may be configured to supply the control circuit with one of a first voltage 245 from the battery and a second voltage 256, 656, or 721 from the power supply circuit. The second switching circuit may be configured to supply the second control circuit with one of a first voltage 245 from the battery and a second voltage 256, 656, or 721 from the power supply circuit. According to an embodiment, wiring may be included for electrically connecting the power supply circuit to the RFFE module and the second RFFE module. The wiring may include a first branch for the PA of the RFFE module, a second branch for the switching circuit of the RFFE module, and a third branch for the second switching circuit of the second RFFE module.

[0130] According to an embodiment, the system may include a second power supply circuit different from the power supply circuit, a second RFFE module different from the RFFE module and including a second PA, and a second antenna connected to the second RFFE module. The second RFFE module may include a second control circuit for controlling PA bias within the second RFFE module and at least one switch located within the second RFFE module, and a second switching circuit for the second control circuit. The RFFE module may include a voltage regulator. The voltage regulator may be configured to provide the second RFFE module with a voltage supplied to the control circuit. The switching circuit may be configured to supply the control circuit with one of a first voltage 245 from the battery and a second voltage from the power supply circuit. The second switching circuit may be configured to supply the second control circuit with one of the first voltage 245 from the battery and a second voltage obtained through the voltage regulator.

[0131] According to an embodiment, wiring may be included for electrically connecting the RFFE module and the second RFFE module. The wiring may be used to provide the voltage supplied to the control circuitry of the second RFFE module.

[0132] According to an embodiment, while the second voltage 256, 656 or 721 of the power supply circuit is supplied to the control circuit through a switching circuit, the power supply circuit can be configured to provide the second voltage 256, 656 or 721 at a fixed amplitude based on average power tracking (APT).

[0133] According to an embodiment, electronic device 101 may include non-volatile memory. The non-volatile memory may include a first supply voltage value for a first state where a first voltage 245 is supplied to the control circuit via a switching circuit, and a second supply voltage value for a second state where a second voltage 256, 656, or 721 is supplied to the control circuit via a switching circuit. Processor 210 may be configured to control the power supply circuit to operate PA at a first voltage value 245 corresponding to the power of the transmitted signal among the first supply voltage values ​​in the first state. Processor 210 may be configured to control the power supply circuit to operate PA at a second voltage value 256, 656, or 721 corresponding to the power of the transmitted signal among the second supply voltage values ​​in the second state. At least a portion of the first supply voltage value may be lower than a voltage threshold. All second supply voltage values ​​may be higher than a voltage threshold.

[0134] In one embodiment, a radio frequency front-end (RFFE) module is provided. The RFFE module may include a power amplifier (PA), control circuitry for controlling PA bias and at least one switch located within the RFFE module, and a switching circuitry for controlling the control circuitry. The RFFE module may be configured to acquire a first voltage 245 from a battery and a second voltage 256, 656, or 721 from a power supply circuit. The switching circuitry may be configured to selectively supply the first voltage 245 from the battery or the second voltage 256, 656, or 721 from the power supply circuitry to the control circuitry. The control circuitry may include at least one of a PA bias circuitry for supplying a bias voltage to the PA, logic circuitry for controlling at least one switch, or a power supply circuitry for supplying power to at least one switch.

[0135] According to an embodiment, the switching circuit can be electrically connected to the control circuit via an inductor 510 disposed outside the RFFE module.

[0136] According to an embodiment, the power amplifier can be configured to operate based on a second voltage 256, 656, 721 obtained through a power supply circuit or based on a third voltage obtained through a second power supply circuit different from the power supply circuit.

[0137] According to an embodiment, the RFFE module may include a bias path for providing a second voltage 256, 656, or 721 to the power amplifier and wiring for connecting the bias path to a switching circuit.

[0138] The processor 120 or 210 of this disclosure may include various processing circuits and / or multiple processors. For example, the term "processor" as used in this document (including the claims) may include various processing circuits comprising at least one processor, and one or more of the at least one processor may be configured to perform the various functions described in this disclosure individually and / or jointly. As used in this disclosure, when "processor," "at least one processor," and "one or more processors" are described as being configured to perform various functions, these terms may include, for example, a situation where one processor performs without limitation, a situation where (one or more) other processors perform a portion of the described functions and other functions among the described functions, and a situation where a single processor can perform all the described functions, and / or a combination of processors performing in a distributed manner. In addition, the instructions (or program commands) for the various functions in this disclosure may cause an electronic device (e.g., electronic device 101) to perform various functions when run by the processor.

[0139] The electronic device according to various embodiments can be one of a variety of types of electronic devices. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. According to embodiments of this disclosure, the electronic device is not limited to those described above.

[0140] It should be understood that the various embodiments of this disclosure and the terminology used therein are not intended to limit the technical features set forth herein to the specific embodiments, but rather to include various changes, equivalents, or substitutions to the respective embodiments. In the description of the drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that the singular form of a noun corresponding to an item may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as “A or B,” “at least one of A and B,” “at least one of A or B,” “A, B, or C,” “at least one of A, B, and C,” and “at least one of A, B, or C” may include any one or all possible combinations of the items enumerated together with the corresponding phrase among the plurality of phrases. As used herein, terms such as “first” and “second” or “first” and “second” may be used to simply distinguish one component from another and do not limit the components in other respects (e.g., importance or order). It will be understood that, whether the terms “operably” or “communically” are used or not, if an element (e.g., a first element) is referred to as being “coupled” or “connected” to another element (e.g., a second element), it means that the element can be directly (e.g., wiredly) coupled to the other element, wirelessly connected to the other element, or coupled to the other element via a third element.

[0141] As used in connection with various embodiments of this disclosure, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms such as "logic," "logic block," "part," or "circuit." A module may be a single integrated component adapted to perform one or more functions, or the smallest unit or part of such a single integrated component. For example, according to embodiments, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0142] The various embodiments set forth herein can be implemented as software (e.g., program 140) containing one or more instructions readable by a machine (e.g., electronic device 101) stored in a storage medium (e.g., internal memory 136 or external memory 138). For example, under the control of a processor (e.g., processor 120) of the machine (e.g., electronic device 101), the processor can invoke and execute at least one instruction from one or more instructions stored in the storage medium, with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. The term "non-transitory" means only that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but this term does not distinguish between cases where data is stored semi-permanently in the storage medium and cases where data is temporarily stored in the storage medium.

[0143] According to embodiments, methods according to various embodiments of this disclosure may be included and provided in a computer program product. The computer program product can be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)) or via an app store (e.g., the Play Store). TM The computer program product may be distributed online (e.g., downloaded or uploaded), or may be distributed directly between two user devices (e.g., smartphones) (e.g., downloaded or uploaded). If it is distributed online, at least a portion of the computer program product may be temporarily generated, or at least a portion of the computer program product may be temporarily stored in a machine-readable storage medium (such as the memory of a manufacturer's server, an app store's server, or a forwarding server).

[0144] According to various embodiments, each of the above-described components (e.g., a module or program) may include a single entity or multiple entities, and some of the multiple entities may be separately disposed in different components. According to various embodiments, one or more of the above-described components may be omitted, or one or more other components may be added. Optionally or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform one or more functions of each of the multiple components in the same or similar manner as the corresponding component of the multiple components performed one or more functions before integration. According to various embodiments, the operations performed by a module, program, or other component may be performed sequentially, in parallel, repeatedly, or heuristically, or one or more operations may be run in a different order or omitted, or one or more other operations may be added.

Claims

1. An electronic device, the electronic device comprising: processor; Radio frequency (RF) transceivers; A radio frequency front-end (RFFE) module, which is connected to the RF transceiver; Antenna, which is connected to the RFFE module; A battery configured to provide a first voltage; as well as A power supply circuit configured to supply a second voltage to a power amplifier (PA) based on the first voltage; The RFFE module includes a control circuit and a switching circuit for the control circuit. The control circuit is used to control the PA bias within the RFFE module and at least one switch within the RFFE module. The switching circuit is controlled according to the control of the processor or the RF transceiver, so as to: Based on the first voltage being higher than or equal to a voltage threshold, the control circuit is supplied with the first voltage of the first voltage and the second voltage. Based on the fact that the first voltage is lower than the voltage threshold, the second voltage of the first voltage and the second voltage is supplied to the control circuit.

2. The electronic device according to claim 1, in, The control circuit includes at least one of the following: a PA bias circuit for supplying a bias voltage to the PA of the RFFE module; a logic circuit for controlling the at least one switch; or a power supply circuit for supplying power to the at least one switch. The voltage threshold is set to be equal to or greater than the voltage value required for the operation of the components of the control circuit.

3. The electronic device according to claim 1, in, The switching circuit is configured to selectively connect the control circuit to either a first output of the battery or a second output of the power supply circuit. The switching circuit is electrically connected to the control circuit via an inductor located outside the RFFE module.

4. The electronic device according to claim 1, further comprising: A second power supply circuit, which is different from the power supply circuit described above; A second RFFE module, different from the RFFE module, includes the PA; and The second antenna is connected to the second RFFE module. The RFFE module includes a second PA, to which a third voltage, different from the second voltage, is applied from the second power supply circuit. The second RFFE module includes a second control circuit and a second switching circuit for the second control circuit. The second control circuit is used to control the PA bias in the second RFFE module and at least one switch in the second RFFE module.

5. The electronic device according to claim 4, further comprising: A first wiring is used to electrically connect the power supply circuit to each of the RFFE module and the second RFFE module; as well as The second wiring is used to electrically connect the second power supply circuit to the RFFE module and each of the second RFFE modules. The first wiring includes a first branch originating from the power supply circuit and corresponding to the switching circuit of the RFFE module, and a second branch originating from the power supply circuit and corresponding to the PA of the second RFFE module. The second wiring includes a third branch corresponding to the second PA of the RFFE module, starting from the second power supply circuit, and a fourth branch corresponding to the PA of the second RFFE module, starting from the second power supply circuit.

6. The electronic device according to claim 4, in, The switching circuit is configured to supply the control circuit with one of the first voltage of the battery and the second voltage of the power supply circuit, and The second switching circuit is configured to supply the second control circuit with one of the first voltage of the battery and the third voltage of the second power supply circuit.

7. The electronic device according to claim 4, in, The third voltage is supplied to the second PA of the RFFE module through the second power supply circuit. Specifically, when the third voltage is supplied to the second PA of the RFFE module through the second power supply circuit while the first voltage is lower than the voltage threshold, the second voltage is supplied to the switching circuit of the RFFE module through the power supply circuit, and The second power supply circuit is configured to provide the third voltage at a fixed amplitude based on average power tracking (APT) or at a variable amplitude based on envelope tracking (ET).

8. The electronic device according to claim 1, wherein, The processor is configured to: Obtain information corresponding to the first voltage. Identify whether the first voltage is lower than the voltage threshold, and When the first voltage is supplied to the control circuit and the first voltage is lower than the voltage threshold, a control signal for changing the switching circuit is sent to the RFFE module to supply the second voltage to the control circuit.

9. The electronic device according to claim 8, wherein, The processor is further configured to: When the first voltage is higher than or equal to the voltage threshold while the second voltage is supplied to the control circuit, a control signal for changing the switching circuit is sent to the RFFE module to supply the second voltage to the control circuit.

10. The electronic device according to claim 1, in, The RFFE module includes the PA that applies the second voltage to it from the power supply circuit, and The switching circuit is configured to selectively connect the control circuit to the battery or the power supply circuit.

11. The electronic device of claim 10, wherein the electronic device comprises: A second power supply circuit, which is different from the power supply circuit mentioned above; A second RFFE module, different from the RFFE module, includes a second PA; and The second antenna is connected to the second RFFE module. The second RFFE module includes a second control circuit and a second switching circuit for the second control circuit. The second control circuit is used to control the PA bias within the second RFFE module and at least one switch within the second RFFE module. The second PA operates based on a third voltage from the second power supply circuit. The switching circuit is configured to supply the control circuit with one of the first voltage of the battery and the second voltage of the power supply circuit, and The second switching circuit is configured to supply the second control circuit with one of the first voltage of the battery and the second voltage of the power supply circuit.

12. The electronic device of claim 11, wherein the electronic device comprises: Wiring, the wiring being used to electrically connect the power supply circuit to the RFFE module and the second RFFE module, The wiring includes a first branch for the PA of the RFFE module, a second branch for the switching circuit of the RFFE module, and a third branch for the second switching circuit of the second RFFE module.

13. The electronic device of claim 10, wherein the electronic device comprises: A second power supply circuit, which is different from the power supply circuit mentioned above; A second RFFE module, different from the RFFE module, includes a second PA; and The second antenna is connected to the second RFFE module. The second RFFE module includes a second control circuit and a second switching circuit for the second control circuit. The second control circuit is used to control the PA bias within the second RFFE module and at least one switch within the second RFFE module. The RFFE module also includes a voltage regulator. The voltage regulator is configured to provide the voltage supplied to the control circuit to the second RFFE module. The switching circuit is configured to supply the control circuit with one of the first voltage of the battery and the second voltage of the power supply circuit, and The second switching circuit is configured to supply the second control circuit with either the first voltage of the battery or the second voltage obtained through the voltage regulator.

14. The electronic device according to claim 1, further comprising: Non-volatile memory, The non-volatile memory includes: Regarding the first supply voltage value in the first state, in the first state, the first voltage of the battery is supplied to the control circuit through the switching circuit, and Regarding the second supply voltage value in the second state, in the second state, the second voltage of the battery is supplied to the control circuit through the switching circuit. The processor is configured as follows: In the first state, the power supply circuit is controlled to operate the PA with a first voltage value corresponding to the power of the transmitted signal from the first supply voltage value, and In the second state, the power supply circuit is controlled to operate the PA with a second voltage value, which corresponds to the power of the transmitted signal, from the second supply voltage value. Wherein, at least a portion of the first supply voltage value is lower than the voltage threshold, and Wherein, all of the second supply voltage values ​​are higher than the voltage threshold.

15. A radio frequency front-end (RFFE) module, the RFFE module comprising: Power amplifier (PA); A control circuit for controlling the PA bias of the PA and at least one switch within the RFFE module; as well as A switching circuit, which is used in the control circuit. The RFFE module is configured to acquire a first voltage from the battery and a second voltage from the power supply circuit. The switching circuit is configured to selectively supply the control circuit with either the first voltage of the battery or the second voltage of the power supply circuit. The control circuit includes at least one of the following: a PA bias circuit for supplying a bias voltage to the PA, a logic circuit for controlling the at least one switch, or a power supply circuit for supplying power to the at least one switch.

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