Power amplification circuit, control method and device of power amplification control circuit

Abstract

The application discloses a power amplification circuit, a control method and a device of a power amplification control circuit, and belongs to the electronic technical field.The power amplification circuit comprises a power supply module, a first power amplifier and a first switch module; the power supply module is connected with a first end of the first switch module; a second end of the first switch module is connected with the first power amplifier; the working state of the first power amplifier is determined based on the switch state of the first switch module; and the first power amplifier is used for amplifying a radio frequency signal corresponding to a first communication frequency band.

Description

Technical Field

[0001] This application belongs to the field of electronic technology, specifically relating to a power amplifier circuit, a control method and device for a power amplifier control circuit. Background Technology

[0002] With the development of technology and the popularization of mobile networks, mobile terminals have become an indispensable part of people's lives and work. Current mobile terminals can support multiple network standards and frequency bands, such as New Radio (NR), Long Term Evolution (LTE), Wideband Code Division Multiple Access (WCDMA), or Global System for Mobile Communications (GSM).

[0003] To achieve multi-standard and multi-band network communication, mobile terminals typically use multiple different radio frequency (RF) modules to support Multiple-Input Multiple-Output (MIMO) functionality. Each RF module includes a power amplifier (PA). To reduce RF power consumption and increase battery life, mobile terminals generally use Average Power Tracking (APT) or Envelope Tracking (ET) power supply modules to power the PAs in the RF modules. However, some PAs are directly powered by the mobile terminal's battery or system power supply. These power supplies are constant and can only be enabled or disabled via software configuration. When a PA is abnormally set to an active state, it causes the terminal to consume additional power, leading to abnormal overheating and reduced battery life. Alternatively, a short circuit in the PA's internal power pins can pull down the voltage of the battery or system power supply, also causing abnormal power consumption. Summary of the Invention

[0004] The purpose of this application is to provide a control method and device for a power amplifier circuit and a power amplifier control circuit, which can solve the problem of abnormal power consumption of the terminal when the power amplifier is malfunctioning.

[0005] In a first aspect, embodiments of this application provide a power amplifier circuit, which includes: a power supply module, a first power amplifier, and a first switching module;

[0006] The power supply module is connected to the first end of the first switch module, and the second end of the first switch module is connected to the first power amplifier.

[0007] The operating state of the first power amplifier is determined based on the switching state of the first switching module, and the first power amplifier is used to amplify the radio frequency signal corresponding to the first communication frequency band.

[0008] Secondly, embodiments of this application provide a control method for a power amplifier control circuit, the method comprising:

[0009] Upon receiving a network request corresponding to the network to be accessed, the frequency band information corresponding to the network to be accessed is determined;

[0010] When the frequency band information corresponding to the network to be accessed belongs to the target communication frequency band, the branch between the power supply module and the power amplifier is controlled to be turned on based on the switch control signal. The target communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the target communication frequency band.

[0011] Thirdly, embodiments of this application provide a control device for a power amplifier control circuit, the device comprising:

[0012] The determination module is used to determine the frequency band information corresponding to the network to be accessed when a network request corresponding to the network to be accessed is received.

[0013] The control module is used to control the branch between the power supply module and the power amplifier to be turned on based on a switch control signal when the frequency band information corresponding to the network to be accessed belongs to the target communication frequency band. The target communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the target communication frequency band.

[0014] Fourthly, embodiments of this application provide an electronic device including a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the control method of the power amplifier control circuit as described in the first aspect.

[0015] Fifthly, embodiments of this application provide a readable storage medium storing a program or instructions that, when executed by a processor, implement the control method of the power amplifier control circuit as described in the first aspect.

[0016] In a sixth aspect, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the control method of the power amplifier control circuit as described in the first aspect.

[0017] In a sixth aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the control method of the power amplifier control circuit as described in the first aspect.

[0018] In this embodiment, by adding a first switch module to the power supply module and the first power amplifier, the operating state of the first power amplifier can be controlled by controlling the switching state of the first switch module. This allows the first power amplifier to be disconnected in a timely manner if it is set to an abnormal operating state, effectively avoiding the problem of abnormal power consumption of the terminal caused by abnormal operation of the first power amplifier, thereby improving the terminal's battery life and optimizing the user experience. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the power amplifier circuit provided in the embodiments of this application;

[0020] Figure 2 This is a second schematic diagram of the power amplifier circuit provided in the embodiments of this application;

[0021] Figure 3 This is the third schematic diagram of the power amplifier circuit provided in the embodiments of this application;

[0022] Figure 4 This is the fourth schematic diagram of the power amplifier circuit provided in the embodiments of this application;

[0023] Figure 5 This is the fifth schematic diagram of the power amplifier circuit provided in the embodiments of this application;

[0024] Figure 6 This is one of the flowcharts illustrating the control method of the power amplifier control circuit provided in the embodiments of this application;

[0025] Figure 7 This is a second schematic flowchart of the control method for the power amplifier control circuit provided in the embodiments of this application;

[0026] Figure 8 This is a schematic diagram of the structure of the control device of the power amplifier control circuit provided in the embodiments of this application;

[0027] Figure 9 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0028] Figure 10 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

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

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

[0031] The following description, in conjunction with the accompanying drawings, details the control method and apparatus for the power amplifier circuit and power amplifier control circuit provided in this application through specific embodiments and application scenarios.

[0032] Figure 1 This is one of the structural schematic diagrams of the power amplifier circuit provided in the embodiments of this application. For example... Figure 1 As shown, the power amplifier circuit includes: a power supply module 110, a first switching module 120, and a first power amplifier 130.

[0033] The power supply module 110 is connected to the first terminal of the first switch module 120, and the second terminal of the first switch module 120 is connected to the first power amplifier 130. The power supply module 110, the first switch module 120, and the first power amplifier 130 are electrically connected.

[0034] The operating state of the first power amplifier 130 is determined based on the switching state of the first switching module 120. The first power amplifier 130 is used to amplify the radio frequency signal corresponding to the first communication frequency band.

[0035] It is understood that this power amplifier circuit can be applied in terminals, including but not limited to mobile phones, tablets, computers, or wearable devices.

[0036] In some embodiments, such as Figure 2 As shown, the power supply module 110 may include the terminal's battery VBATT or system power VPH. The battery VBATT or system power VPH is the terminal's power supply module, mainly used to power all networks in the terminal that require VBATT / VPH.

[0037] The first power amplifier 130 is a radio frequency front-end (RFFE) device. It does not support power supply from power control modules such as average power tracking (APT) or envelope tracking (ET), and is typically powered directly by the terminal's battery VBATT or system power supply VPH. Since the battery VBATT or system power supply VPH is a constant power source, and the current circuit design cannot be configured via software to control the power path between the first power amplifier 130 and the power supply module 110, the current power amplifier 130 cannot be switched on and off.

[0038] The first power amplifier 130 is used to amplify the radio frequency signal corresponding to the first communication frequency band. The first communication frequency band can be determined according to the relevant parameters of the terminal, and is not specifically limited here.

[0039] In some embodiments, the first communication frequency band is the Global System for Mobile Communications (GSM) frequency band. The radio frequency signal corresponding to the first communication frequency band is the radio frequency signal of the second-generation (2G) mobile communication technology network.

[0040] When the first communication frequency band is the GSM band, the first power amplifier 130 is a GSM PA.

[0041] In this embodiment of the application, a first switch module 120 is added near the power supply pin of the first power amplifier 130.

[0042] The first switch module 120 can be a single-pole single-throw (SPST) switch or other types of switches, which are not specifically limited here. The first switch module 120 is used to turn on or off the power supply path between the first power amplifier 130 and the power supply module 110.

[0043] In this embodiment, the operating state of the first power amplifier 130 can be controlled by controlling the switching state of the first switch module 120, thereby avoiding the problem of abnormal power consumption of the terminal caused by the first power amplifier 130 being abnormally turned on. When the switching state of the first switch module 120 is on, the first power amplifier 130 can work normally; when the switching state of the first switch module 120 is off, the first power amplifier 130 can stop working.

[0044] In some embodiments, such as Figure 2 As shown, the power amplifier circuit also includes a switch control module 210.

[0045] The switch control module 210 can be connected to the first switch module 120. The connection method can be electrical or communication, and no specific limitation is made here.

[0046] The switch control module 210 is used to control the first switch module 120 to turn on or off.

[0047] The switch control module 210 can be an application processor (AP) or a transceiver (TC). Both the AP and TC are equipped with control ports for peripheral circuit devices. The AP or TC can output control signals to the first switch module 120 to control the working state of the first switch module 120, that is, to control the first switch module 120 to be turned on or off.

[0048] like Figure 2 As shown, the power amplifier circuit also includes a transceiver 220 and an antenna 230.

[0049] In this embodiment, the first power amplifier 130 is electrically connected to the transceiver 220 and the antenna 230. The antenna 230 is used to receive signals transmitted by the base station. The transceiver 220 is used to amplify, mix, and filter the signals received from the antenna 230 before sending them to the baseband chip in the terminal for demodulation. It is also used to amplify the coded modulation signal synthesized by the baseband chip and send it to the first power amplifier 130 for amplification, and then transmit the amplified signal through the antenna 230.

[0050] The first power amplifier 130 is directly powered by the power supply module 110. The switch control module 210 can send control signals to the first switch module 120 according to actual needs to control the first power amplifier 130 to be turned on or off, so that the first power amplifier 130 is powered on or off.

[0051] In related technologies, the terminal is equipped with a Mobile Industry Processor Interface (MIPI) bus, which can simultaneously control multiple RFFE (Radio Frequency Adapter) devices. The MIPI bus can send commands to the corresponding RFFE devices, controlling them by writing specific values ​​to specific registers. If a specific register fails and loses power, its value might still be the value required for the RFFE device to function normally. The MIPI bus will only use this register value to control the RFFE device's operation. If the RFFE device is not needed at this time, the MIPI bus will not be aware that the specific register has lost power and will still control the RFFE device normally based on the outdated value in the register. Therefore, the RFFE device can be considered to be in an abnormal operating state.

[0052] In practical implementation, when the first power amplifier 130 is a GSM PA, if the terminal determines that the connected network is not a GSM band network, the switch control module 210 can control the first switch module 120 to turn off, thus de-energizing the GSM PA, saving the terminal's RF power consumption and improving its battery life. If the terminal determines that the connected network is a GSM band network, the switch control module 210 can control the first switch module 120 to turn on, energizing the GSM PA and allowing it to operate normally. This embodiment of the application can control the operating state of the first power amplifier 130 through the first switch module 120, thereby effectively preventing the first power amplifier 130 from being in an abnormal operating state.

[0053] The power amplifier control circuit provided in this application embodiment, by adding a first switch module to the power supply module and the first power amplifier, can control the working state of the first power amplifier by controlling the switching state of the first switch module. In this way, the first power amplifier can be disconnected in time when it is set to an abnormal working state, effectively avoiding the problem of abnormal power consumption of the terminal caused by abnormal operation of the first power amplifier, thereby improving the terminal's battery life and optimizing the user experience.

[0054] In some embodiments, such as Figure 3 As shown, the power amplifier circuit also includes: a power control module 310, a second power amplifier 330, and a second switching module 320;

[0055] The first terminal of the power control module 310 is connected to the power supply module 110, the second terminal of the power control module 310 is connected to the first terminal of the second switch module 320, and the second terminal of the second switch module 320 is connected to the second power amplifier 330.

[0056] The operating state of the second power amplifier 330 is determined based on the switching state of the second switching module 320. The second power amplifier 330 is used to amplify the radio frequency signal corresponding to the second communication frequency band, which is a frequency band other than the first communication frequency band.

[0057] In actual implementation, the second power amplifier 330 is a radio frequency front-end (RFFE) device. The second power amplifier 330 can support the power supply of the power control module 310.

[0058] To increase the terminal's battery life and reduce its radio frequency power consumption, the terminal typically uses a power control module 310 to power the second power amplifier 330. The power control module 310 can be an APT power module or an ET power module. The same power control module 310 can power different power amplifiers, or each power amplifier can have its own dedicated power control module 310 for individual power supply.

[0059] The second power amplifier 330 is used to amplify the radio frequency signal corresponding to the second communication frequency band. The second communication frequency band can be determined according to the relevant parameters of the terminal, and is not specifically limited here.

[0060] For example, when the second communication frequency band is the LTE frequency band, the second power amplifier 330 is an LTE PA; when the second communication frequency band is the NR frequency band, the second power amplifier 330 is an NR PA.

[0061] In a non-standalone (NSA) network scenario, the LTE and NR bands of the terminal need to work simultaneously. To ensure that the output of the power control module 310 meets the application requirements of the second power amplifier 330 and to avoid coexistence interference noise from shared power supply affecting communication quality, the LTE PA and NR PA can be powered by independent power control modules 310.

[0062] like Figure 4 As shown, the power control module 310 can be either PA power module 1 or PA power module 2. Both PA power module 1 and PA power module 2 can power the second power amplifier 330 (LTE PA or NR PA). For LTE PA in the NSA band and NR PA in the NR band, different PA power modules can be selected for separate power supply to ensure communication quality.

[0063] In this embodiment, a second switch module 320 is added near the power supply pin of the second power amplifier 330.

[0064] like Figure 4 As shown, the second switch module 320 can be a single-pole single-throw (SPST) switch or other types of switches, which are not specifically limited here. The second switch module 320 is used to turn on or off the power path between the second power amplifier 330 and the power control module 310.

[0065] In this embodiment, the operating state of the second power amplifier 330 can be controlled by controlling the switching state of the second switch module 320. When the second switch module 320 is in the ON state, the second power amplifier 330 can operate normally; when the second switch module 320 is in the OFF state, the second power amplifier 330 can stop operating.

[0066] It is understandable that a single-pole multi-throw (SPMD) switch can also be added to the power amplifier circuit to control the operating states of different power amplifiers. The SPMD switch can be equivalent to the first switch module 120 and the second switch module 320 in the above embodiments.

[0067] In some embodiments, the switch control module 210 may be connected to the second switch module 320. The connection method may be electrical or communication, and no specific limitation is made here.

[0068] The switch control module 210 is used to control the second switch module 320 to turn on or off.

[0069] In actual operation, the switch control module 210 can output control signals to the second switch module 320 to control the working state of the second switch module 320, that is, to control the second switch module 320 to be turned on or off.

[0070] In some embodiments, the second power amplifier 330 in this application can also be electrically connected to the transceiver and the antenna, respectively. The antenna is used to receive signals transmitted by the base station. The transceiver is used to amplify, mix, and filter the signal received from the antenna before sending it to the baseband chip in the terminal for demodulation. It is also used to amplify the coded modulation signal synthesized by the baseband chip and send it to the second power amplifier 330 for amplification, and then transmit the amplified signal through the antenna. The connection method between the antenna, transceiver, and second power amplifier 330 can be referred to... Figure 2 No specific limitations are specified here.

[0071] The power amplifier control circuit provided in this application provides a second switching module by adding a second switching module to the power control module and the second power amplifier. This allows the operating states of both the first and second power amplifiers to be controlled by the switching module, thereby avoiding the problem that when one power amplifier is working, the other power amplifier consumes abnormal power or the power supply pin of the other power amplifier is short-circuited, resulting in the inability to register with the network.

[0072] Figure 5 This is the fifth schematic diagram of the power amplifier circuit provided in the embodiments of this application. Figure 5As shown, the power amplifier circuit includes: VBATT / VPH module 510, switch 520, GSM PA module 530, AP / TC control module 540, PA power module 1 (550) and PA power module 2 (560).

[0073] Both PA power module 1 (550) and PA power module 2 (560) can supply power to PA modules in the LTE or NR bands.

[0074] The AP / TC control module 540 can send control signals to the switch 520, thereby controlling the working state of the GSM PA module by controlling the working state of the switch 520.

[0075] It is understandable that different PA modules can perform different switching controls, and no specific limitations are made here.

[0076] This application also provides an electronic device that includes the power amplifier circuit described in any of the above embodiments, for example, it may include... Figures 1 to 5 The power amplifier circuit shown is shown.

[0077] Figures 1 to 5 The power amplifier circuit shown has been described in the above embodiments and will not be repeated here.

[0078] According to the embodiments of this application, the electronic device adds a first switch module to the power supply module and the first power amplifier. By controlling the switching state of the first switch module, the working state of the first power amplifier can be controlled. In this way, the first power amplifier can be disconnected in time when it is set to an abnormal working state, effectively avoiding the problem of abnormal power consumption of the terminal caused by abnormal operation of the first power amplifier, thereby improving the terminal's battery life and optimizing the user experience.

[0079] This application also provides a control method for a power amplifier control circuit. This method can be applied to any of the power amplifier control circuits described in the above embodiments.

[0080] The control method for the power amplifier control circuit provided in this application embodiment can be executed by a terminal or a functional module or entity in the terminal that can implement the control method of the power amplifier control circuit. The terminal mentioned in this application embodiment includes, but is not limited to, mobile phones, tablet computers, computers, cameras, wearable devices, etc. The control method for the power amplifier control circuit provided in this application embodiment is described below with the terminal as the execution subject as an example.

[0081] like Figure 6 As shown, the control method of the power amplifier control circuit includes steps 610 and 620.

[0082] Step 610: Upon receiving a network request corresponding to the network to be accessed, determine the frequency band information corresponding to the network to be accessed;

[0083] Step 620: If the frequency band information corresponding to the network to be accessed belongs to the target communication frequency band, control the branch between the power supply module and the power amplifier to be turned on based on the switch control signal. The target communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the target communication frequency band.

[0084] Understandably, after powering on, the terminal will first search for networks in the current environment, select a network to connect to from the search results, and register. Only after successful registration will it connect to that network. The terminal can select networks manually or automatically. When automatically selecting networks, it can prioritize networks with higher signal strength. The terminal can receive information from the network side to obtain supported operating frequency band information, i.e., determine the target communication frequency band.

[0085] In practice, the target communication frequency band can be a GSM frequency band network, an NR frequency band network, or an LTE frequency band network.

[0086] When a terminal receives a network request corresponding to a network to be accessed, the terminal can determine the frequency band information corresponding to the network to be accessed and determine whether the frequency band information belongs to the target communication frequency band.

[0087] Based on the judgment result, if the frequency band information corresponding to the network to be accessed belongs to the target communication frequency band, an output switch control signal is generated to control the branch between the power supply module and the power amplifier to conduct, so that the power amplifier can work normally after being powered on. The power amplifier can amplify the radio frequency signal corresponding to the target communication frequency band.

[0088] After the power amplifier is working normally, it can start network registration based on the radio frequency path corresponding to the network to be accessed, thereby registering with the network to be accessed and starting to use the network services corresponding to the network to be accessed.

[0089] The control method of the power amplifier control circuit provided in this application embodiment judges the frequency band information corresponding to the network to be accessed, and determines whether to output a switch control signal based on the judgment result, thereby controlling the power path between the power supply module and the power amplifier, realizing effective control of the working state of the power amplifier, and avoiding the problem of abnormal power consumption of the terminal due to the abnormal opening of the power amplifier.

[0090] In some embodiments, after the branch between the power supply module and the power amplifier is turned on based on the switch control signal, the control method of the power amplifier control circuit further includes:

[0091] Initialize the registers corresponding to the power amplifier;

[0092] If registration with the network to be accessed fails, update the value of the register;

[0093] If the value in the register exceeds a preset threshold, the network to be accessed is determined to be in an abnormal state.

[0094] In actual implementation, before configuring each RF device, it is necessary to initialize all power amplifiers to ensure that all power amplifiers are initialized to the off state. Then, the values ​​of the registers corresponding to the power amplifiers can be cleared and initialized.

[0095] Based on the operating frequency band information corresponding to the network to be accessed, configure the operating status of relevant radio frequency devices on the path. When the branch between the power supply module and the power amplifier is connected, the terminal applies to register the network to be accessed.

[0096] Since many factors influence whether a terminal can successfully register with a network, a register can be set up to count the attempts. Each time the terminal attempts to register with a network and fails, the register value is incremented by 1; that is, the register value is updated based on the success or failure of network registration.

[0097] If the value of the register exceeds the preset threshold and the terminal still cannot register with the network, it may be due to an abnormality in the terminal itself or the network signal where the terminal is located, thus indicating that the network to be accessed is in an abnormal state.

[0098] In some embodiments, after the branch between the power supply module and the power amplifier is turned on based on the switch control signal, the control method of the power amplifier control circuit further includes:

[0099] Initialize the registers corresponding to the power amplifier;

[0100] If the network access registration is successful, the value of the register is cleared to zero;

[0101] Check whether the frequency band information corresponding to the network to be accessed has changed.

[0102] In actual execution, after initializing the registers corresponding to the power amplifier, the network to be connected can register normally. That is, once the network to be connected is successfully registered, the value of the register is cleared to zero.

[0103] The terminal can detect network change information in real time and determine whether the frequency band information corresponding to the network to be accessed has changed. Based on the network change information, the frequency band information is determined, and then a new round of network configuration is performed.

[0104] Network change refers to any change in network standard, such as switching from 2G to 3G, or from 5G to 4G.

[0105] In some embodiments, after detecting whether the frequency band information corresponding to the network to be accessed has changed, the control method of the power amplifier control circuit further includes:

[0106] If a change in the frequency band information corresponding to the network to be accessed is detected, it is determined whether the changed frequency band information belongs to the target communication frequency band.

[0107] In actual implementation, if a change in the frequency band information corresponding to the network to be accessed is detected, the frequency band information corresponding to the network to be accessed is re-acquired, and the network configuration and RF front-end device configuration process is re-performed.

[0108] If the frequency band information corresponding to the network to be accessed has not changed, the current working state will be maintained.

[0109] by Figure 5 Taking the circuit shown as an example, the target communication frequency band is the GSM band network. The terminal determines whether it is a GSM band network based on the frequency band information of the network to be accessed. According to the determination result, the AP / TC module outputs a control signal to control switch 520 to turn on or off, thereby controlling the working state of the GSM PA module 530. If it is a GSM band network, control switch 520 is turned on; if it is not a GSM band network, control switch 520 is turned off.

[0110] In this embodiment, whether the terminal is searching for a network for the first time after powering on or when a network change occurs during use, it will determine whether to use a GSM PA. When the terminal is not using the GSM network standard, the GSM PA can be powered off, thereby extending the lifespan of the GSM PA and improving the terminal's battery life.

[0111] For example, Figure 7 Another flowchart of the control method for the power amplifier control circuit in this embodiment is shown. For example... Figure 7 As shown, the control method of this power amplifier control circuit may also include the following:

[0112] Step 701: Enter the network search process and set register REG to 0. The terminal can scan all frequency bands to select a suitable Public Land Mobile Network (PLMN). Register REG can be used to record the number of times the network is registered. If register REG exceeds a certain number of times, the user will be prompted that there is no available network service.

[0113] Step 702: Obtain the operating frequency band. After the terminal selects a PLMN, it can obtain the operating frequency band of that PLMN.

[0114] Step 703: Determine whether the obtained operating frequency band is a GSM network. If the operating frequency band is a GSM network, proceed to step 704; if the operating frequency band is not a GSM network, proceed to step 705.

[0115] Step 704: The terminal outputs a switch control signal to turn on the target switch. The terminal's processor or RF transceiver is equipped with a control port for peripheral circuit devices. Through this control port, a switch control signal can be sent to control the target switch.

[0116] Step 705: The terminal outputs a switch control signal to disconnect the target switch. If the network the terminal wants to register with is not a GSM band network, the terminal can choose a 3G network, 5G network, etc. Each network has its corresponding power amplifier, which is usually powered by an APT module or an ET module. The APT module or ET module can output the corresponding operating voltage according to the output power of the transmitter.

[0117] Step 706: Initialize all PAs. All PAs include GSM PAs. Initialize all PAs to a disabled state.

[0118] Step 707: Configure relevant RF devices and register the network. For example, start the low-noise amplifier, power amplifier, and other switches on the RF path to form an RF path and establish a network connection.

[0119] Step 708: Determine if network registration was successful. If registration failed, increment register REG by 1. If network registration was successful, clear register REG, and the terminal can then normally register on the network. If the terminal receives a response message from the network side, network registration was successful, and the terminal can use network services.

[0120] Step 709: Determine if a network change has occurred. If a network change has occurred, return to step 701 and repeat steps 701 to 708. For example, when the terminal goes offline, the network response is slow, or a better network signal is detected, the terminal can automatically switch networks, such as switching from 2G to 3G, from 3G to 4G, or from 4G to 5G, etc. If a network change is required, the terminal can restart the network search and select a better network. If no network change has occurred, the terminal will remain connected to the network normally.

[0121] Step 710: Determine if the REG register is greater than 2. If the REG register is greater than 2, all three attempts to register the network have failed, which may be due to an abnormality in the terminal or the network signal. In this case, the user can be prompted that there is a network error. If the REG register is not greater than 2, return to step 706 and try to register the network again.

[0122] In this embodiment, if the terminal does not use the GSM network standard, the GSM PA can be disconnected to avoid abnormal power consumption of the PA. If the terminal uses the GSM network standard, the GSM PA is powered on to ensure normal GSM frequency band network service.

[0123] This application's embodiments optimize the hardware circuitry and add a switch to control the GSM PA. This not only solves the problem of abnormal terminal power consumption caused by the GSM PA being abnormally configured to operate, but also resolves issues such as the terminal failing to power on, failing to register for a network, or having poor signal due to short circuits in the internal power pins of the GSM PA. Simultaneously, by optimizing the software configuration process, it effectively avoids the problem of significantly increased terminal system power consumption, abnormal phone overheating, and short battery life caused by some PAs being abnormally configured to be in an open state during terminal use.

[0124] The control method for the power amplifier control circuit provided in this application can be executed by a control device for the power amplifier control circuit. This application uses the example of a control device for the power amplifier control circuit executing the control method to illustrate the control device for the power amplifier control circuit provided in this application.

[0125] like Figure 8 As shown, the control device 800 of the power amplifier control circuit provided in this application embodiment may include: a determination module 810 and a control module 820.

[0126] The determining module 810 is used to determine the frequency band information corresponding to the network to be accessed when a network request corresponding to the network to be accessed is received.

[0127] The control module 820 is used to control the branch between the power supply module and the power amplifier to be turned on based on a switch control signal when the frequency band information corresponding to the network to be accessed belongs to the target communication frequency band. The target communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the target communication frequency band.

[0128] The control device of the power amplifier control circuit provided in this application embodiment judges the frequency band information corresponding to the network to be accessed, and determines whether to output a switch control signal based on the judgment result, thereby controlling the power path between the power supply module and the power amplifier, realizing effective control of the working state of the power amplifier, and avoiding the problem of abnormal power consumption of the terminal due to the abnormal opening of the power amplifier.

[0129] In some embodiments, the apparatus further includes:

[0130] An initialization module is used to initialize the registers corresponding to the power amplifier after the branch between the power supply module and the power amplifier is turned on based on the switch control signal;

[0131] The update module is used to update the value of the register if the registration with the network to be accessed fails.

[0132] The determination module is also used to determine that the network to be accessed is in an abnormal state if the value of the register exceeds a preset threshold.

[0133] In some embodiments, the initialization module is further configured to initialize the register corresponding to the power amplifier after the branch between the power supply module and the power amplifier is turned on based on the switch control signal;

[0134] The update module is also used to clear the value of the register when the network to be accessed is successfully registered;

[0135] The device further includes:

[0136] The detection module is used to detect whether the frequency band information corresponding to the network to be accessed has changed.

[0137] In some embodiments, the apparatus further includes:

[0138] The determination module is used to determine whether the changed frequency band information belongs to the target communication frequency band after detecting whether the frequency band information corresponding to the network to be accessed has changed.

[0139] The control device for the power amplifier control circuit in this application embodiment can be an electronic device or a component in an electronic device, such as an integrated circuit or a chip. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc., and can also be a television set (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the scope of the device.

[0140] The control device for the power amplifier control circuit in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit the specific operating system used.

[0141] The control device for the power amplifier control circuit provided in this application embodiment can achieve... Figure 6 and Figure 7 The various processes implemented in the method embodiments are not described in detail here to avoid repetition.

[0142] Optionally, such as Figure 9 As shown, this application embodiment also provides an electronic device 900, including a processor 901 and a memory 902. The memory 902 stores a program or instructions that can run on the processor 901. When the program or instructions are executed by the processor 901, they implement the various steps of the control method embodiment of the power amplifier control circuit described above, and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0143] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0144] Figure 10 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of this application.

[0145] The electronic device 1000 includes, but is not limited to, components such as: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, and processor 1010.

[0146] Those skilled in the art will understand that the electronic device 1000 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1010 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 10 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0147] The processor 1010 is used for:

[0148] Upon receiving a network request corresponding to the network to be accessed, the frequency band information corresponding to the network to be accessed is determined;

[0149] When the frequency band information corresponding to the network to be accessed belongs to the target communication frequency band, the branch between the power supply module and the power amplifier is controlled to be turned on based on the switch control signal. The target communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the target communication frequency band.

[0150] The electronic device provided in this application embodiment judges the frequency band information corresponding to the network to be accessed, and determines whether to output a switch control signal based on the judgment result, thereby controlling the power path between the power supply module and the power amplifier, realizing effective control of the working state of the power amplifier, and avoiding the problem of abnormal power consumption of the terminal due to the abnormal opening of the power amplifier.

[0151] In some embodiments, the processor 1010 is further configured to:

[0152] After the branch between the power supply module and the power amplifier is turned on based on the switch control signal, the register corresponding to the power amplifier is initialized.

[0153] If the registration with the network to be accessed fails, update the value of the register;

[0154] If the value of the register exceeds a preset threshold, the network to be accessed is determined to be in an abnormal state.

[0155] In some embodiments, the processor 1010 is further configured to:

[0156] After the branch between the power supply module and the power amplifier is connected based on the switch control signal, if a change in the frequency band information corresponding to the network to be accessed is detected, it is determined whether the changed frequency band information belongs to the target communication frequency band.

[0157] It should be understood that, in this embodiment, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042. The GPU 10041 processes image data of still images or videos obtained by the image capture device in video capture mode or image capture mode. The display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0158] The memory 1009 can be used to store software programs and various data. The memory 1009 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1009 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1009 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0159] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into the processor 1010.

[0160] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the control method embodiment of the power amplifier control circuit described above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0161] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0162] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the control method embodiment of the power amplifier control circuit described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0163] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0164] This application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the control method embodiment of the power amplifier control circuit described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0165] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0166] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0167] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A power amplifier circuit, characterized in that, include: The system comprises a power supply module, a first power amplifier, a first switch module, and a switch control module; the power amplifier circuit is used in the terminal. The power supply module includes the terminal's battery or system power supply, which is a constant power supply; the first power amplifier is directly powered by the power supply module. The power supply module is connected to the first end of the first switch module, and the second end of the first switch module is connected to the first power amplifier. The operating state of the first power amplifier is determined based on the switching state of the first switching module, and the first power amplifier is used to amplify the radio frequency signal corresponding to the first communication frequency band. Upon receiving a network request corresponding to the network to be accessed, the terminal determines the frequency band information corresponding to the network to be accessed. The switch control module is connected to the first switch module and is used to control the first switch module to turn on when the frequency band information corresponding to the network to be accessed belongs to the first communication frequency band, so as to connect the branch between the power supply module and the first power amplifier; to control the first switch module to turn off when the frequency band information corresponding to the network to be accessed does not belong to the first communication frequency band, so as to de-energize the first power amplifier; after the branch is connected, initialize the register corresponding to the first power amplifier; update the value of the register when the network to be accessed fails to register; determine that the network to be accessed is in an abnormal state when the value of the register exceeds a preset threshold; and clear the value of the register when the network to be accessed is successfully registered, and detect whether the frequency band information corresponding to the network to be accessed has changed.

2. The power amplifier circuit according to claim 1, characterized in that, The power amplifier circuit also includes: a power control module, a second power amplifier, and a second switching module; The first terminal of the power control module is connected to the power supply module, the second terminal of the power control module is connected to the first terminal of the second switch module, and the second terminal of the second switch module is connected to the second power amplifier. The operating state of the second power amplifier is determined based on the switching state of the second switching module. The second power amplifier is used to amplify the radio frequency signal corresponding to the second communication frequency band, which is a frequency band other than the first communication frequency band.

3. The power amplifier circuit according to claim 1 or 2, characterized in that, The switch control module is also connected to the second switch module; The switch control module is used to control the second switch module to turn on or off.

4. The power amplifier circuit according to claim 1 or 2, characterized in that, The first communication frequency band is the GSM frequency band.

5. An electronic device, characterized in that, Includes the power amplifier circuit described in any one of claims 1-4.

6. A control method for a power amplifier control circuit, applied to the electronic device described in claim 5, characterized in that, include: Upon receiving a network request corresponding to the network to be accessed, the frequency band information corresponding to the network to be accessed is determined; When the frequency band information corresponding to the network to be accessed belongs to the first communication frequency band, the branch between the power supply module and the power amplifier is controlled to be turned on based on the switch control signal. The first communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the first communication frequency band. The power supply module includes the terminal's battery or system power supply, the battery or system power supply is a constant power supply, and the power amplifier is directly powered by the power supply module. If the frequency band information corresponding to the network to be accessed does not belong to the first communication frequency band, the branch between the power supply module and the power amplifier is controlled to be turned off based on the switch control signal, so as to de-energize the power amplifier; After the branch is turned on, the register corresponding to the power amplifier is initialized; If the registration of the network to be accessed fails, update the value of the register; if the value of the register exceeds a preset threshold, determine that the network to be accessed is in an abnormal state. If the registration with the network to be accessed is successful, the value of the register is cleared and the frequency band information corresponding to the network to be accessed is checked for changes.

7. The control method for the power amplifier control circuit according to claim 6, characterized in that, After detecting whether the frequency band information corresponding to the network to be accessed has changed, the method further includes: If a change in the frequency band information corresponding to the network to be accessed is detected, it is determined whether the changed frequency band information belongs to the first communication frequency band.

8. A control device for a power amplifier control circuit, applied to the electronic device described in claim 5, characterized in that, include: The determination module is used to determine the frequency band information corresponding to the network to be accessed when a network request corresponding to the network to be accessed is received. The control module is used to control the branch between the power supply module and the power amplifier to be connected based on a switch control signal when the frequency band information corresponding to the network to be accessed belongs to the first communication frequency band. The first communication frequency band is used to indicate the frequency band supported by the terminal, and the power amplifier is used to amplify the radio frequency signal corresponding to the first communication frequency band. The power supply module includes the terminal's battery or system power supply, the battery or system power supply is a constant power supply, and the power amplifier is directly powered by the power supply module. The control module is further configured to, based on the switch control signal, control the branch between the power supply module and the power amplifier to shut down, so as to de-energize the power amplifier, when the frequency band information corresponding to the network to be accessed does not belong to the first communication frequency band. An initialization module is used to initialize the registers corresponding to the power amplifier after the branch is turned on; The update module is used to update the value of the register when the registration of the network to be accessed fails; the determination module is also used to determine that the network to be accessed is in an abnormal state when the value of the register exceeds a preset threshold. The update module is further configured to clear the value of the register when the network to be accessed is successfully registered; the detection module is configured to detect whether the frequency band information corresponding to the network to be accessed has changed.

Images