Control method, apparatus, device, storage medium, and program product

Abstract

The application relates to a control method, device, equipment, storage medium and program product. The method comprises the following steps: in the case that a terminal performs cellular communication based on a target mode, an output voltage of a radio frequency power management chip currently supplying power for a power amplifier in the terminal is acquired, the power amplifier is used for amplifying and processing an uplink cellular signal; according to a voltage range in which the output voltage is located, a power supply mode of the radio frequency power management chip is determined, and the radio frequency power management chip is controlled to supply power for the power amplifier based on the power supply mode, so that board noise generated by the terminal satisfies a board noise suppression condition. By adopting the method, the suppression of the board noise of the terminal can be realized without increasing the area of a PCB of the terminal.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a control method, apparatus, device, storage medium, and program product. Background Technology

[0002] The power amplifier is used to amplify the transmitted signal in the terminal. When the power amplifier is operating, it is powered by the RF power management chip in the terminal. Conversely, when the terminal is receiving signals, the power amplifier is not operating, and the RF power management chip does not need to power it. Therefore, the RF power management chip in the terminal typically turns on and off periodically. During this periodic switching, the large power capacitors surrounding the RF power management chip in the terminal experience a piezoelectric effect, causing them to vibrate and creating board noise, which affects the user experience of the terminal.

[0003] In related technologies, large power supply capacitors are broken down into multiple smaller capacitors to alleviate board noise issues. However, this approach significantly increases the area of ​​the final PCB (Printed Circuit Board) layout. Summary of the Invention

[0004] Therefore, it is necessary to provide a control method, device, equipment, storage medium, and program product that can suppress terminal board noise without increasing the terminal PCB area, in order to address the above-mentioned technical problems.

[0005] Firstly, this application provides a control method. Used in a terminal, the method includes:

[0006] When the terminal performs cellular communication based on the target mode, the current output voltage of the RF power management chip that powers the power amplifier in the terminal is obtained. The power amplifier is used to amplify the uplink cellular signal.

[0007] Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to supply power to the power amplifier according to the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition.

[0008] Secondly, this application also provides a control device. For a terminal, the device includes:

[0009] The acquisition module is used to acquire the current output voltage of the RF power management chip that powers the power amplifier in the terminal when the terminal is conducting cellular communication based on the target mode. The power amplifier is used to amplify the uplink cellular signal.

[0010] The control module is used to determine the power supply mode of the RF power management chip according to the voltage range of the output voltage, and control the RF power management chip to supply power to the power amplifier based on the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition.

[0011] Thirdly, this application also provides an electronic device, including a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of the method described in any of the first aspects above.

[0012] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any one of the first aspects above.

[0013] Fifthly, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the method described in any one of the first aspects above.

[0014] The aforementioned control method, apparatus, device, storage medium, and program product, when the terminal is conducting cellular communication based on a target mode, acquires the current output voltage of the RF power management chip in the terminal that powers the power amplifier, which amplifies the uplink cellular signal. Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to power the power amplifier according to this mode, so that the board noise generated by the terminal meets the board noise suppression conditions. In this way, the terminal can satisfy the board noise suppression conditions by controlling the power supply mode of the RF power management chip to power the power amplifier based on the current output voltage of the RF power management chip. That is, board noise suppression can be achieved without hardware changes or increasing the terminal's PCB footprint, ensuring that users are not affected by board noise and can use the terminal normally. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart illustrating the control method in one embodiment;

[0017] Figure 2 This is a schematic diagram of the power supply status of the radio frequency power management chip in one embodiment;

[0018] Figure 3 This is a schematic diagram of the output voltage waveform of the RF power management chip in one embodiment;

[0019] Figure 4 This is a schematic diagram of the output voltage waveform of an RF power management chip in another embodiment;

[0020] Figure 5 This is a schematic diagram of the output voltage waveform of the RF power management chip in another embodiment;

[0021] Figure 6 This is a schematic diagram of the process for determining the output voltage in one embodiment;

[0022] Figure 7 This is a flowchart illustrating the control method in another embodiment;

[0023] Figure 8 This is a schematic diagram of the hardware structure of the terminal in one embodiment;

[0024] Figure 9 This is a flowchart illustrating the operation of the radio frequency power management chip in one embodiment.

[0025] Figure 10 This is a structural block diagram of the control device in one embodiment;

[0026] Figure 11 This is a diagram of the internal structure of a terminal in one embodiment. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that many specific details are set forth in the following description in order to provide a full understanding of this application, but this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] A power amplifier (PA) is used to amplify the power of the transmitted signal in the terminal. When the power amplifier is operating, it is powered by an RF power management chip in the terminal. When the terminal is receiving signals, the power amplifier is not operating, and the RF power management chip does not need to supply power to the power amplifier.

[0030] Therefore, the RF power management chip in a terminal typically turns on and off periodically. During this process, the large power capacitors surrounding the RF power management chip experience a piezoelectric effect, causing them to vibrate and creating board noise, which affects the user experience. With the rapid development of mobile terminals, users have increasingly higher demands for communication and audio quality. Therefore, solving this board noise problem is urgently needed.

[0031] In related technologies, one approach involves breaking down the large power supply capacitor into multiple smaller capacitors to mitigate board noise. However, this method significantly increases the area of ​​the terminal's PCB (Printed Circuit Board) layout and can only alleviate, not eliminate, the impact of board noise on user experience. Another approach involves increasing the distance between the large power supply capacitor and the earpiece in the hardware layout; the greater the distance, the better. However, due to structural limitations and PCB space constraints, maintaining a very large distance between the earpiece and the large power supply capacitor is impossible. Currently, mobile terminals can only achieve a relatively large distance, which is only a relative optimization and cannot completely eliminate the impact of board noise on user experience.

[0032] In view of this, embodiments of this application provide a control method, apparatus, device, storage medium, and program product that can suppress board noise without requiring hardware changes or increasing the terminal PCB area, ensuring that users can use the terminal normally without being affected by board noise problems.

[0033] It should be noted that the control method provided in this application can be executed by a control device, which can be implemented as part or all of the terminal through software, hardware, or a combination of both. Alternatively, the control device can be implemented as part or all of the transceiver in the terminal through software, hardware, or a combination of both. The terminal can be, but is not limited to, various smartphones, personal computers, laptops, tablets, IoT devices, and portable wearable devices. IoT devices can be smart speakers, smart TVs, smart in-vehicle devices, etc. Portable wearable devices can be smartwatches, smart bracelets, head-mounted devices, etc. In the following method embodiments, the execution subject is described as the terminal; however, the execution subject can also be the transceiver in the terminal.

[0034] In one embodiment, such as Figure 1 As shown, a control method is provided, including the following steps:

[0035] Step 101: When the terminal is performing cellular communication based on the target mode, obtain the current output voltage of the RF power management chip that powers the power amplifier in the terminal; the power amplifier is used to amplify the uplink cellular signal.

[0036] When the terminal performs cellular communication based on the target mode, the power amplifier may operate periodically. That is, in a single cycle, when the terminal generates an uplink cellular signal, the power amplifier operates to amplify the uplink cellular signal, enabling the terminal to transmit the amplified uplink cellular signal. During periods when the terminal is not generating an uplink cellular signal, the power amplifier does not operate. The RF power management chip supplies power to the power amplifier, ensuring its proper functioning.

[0037] When a terminal performs cellular communication based on a target mode, the terminal may generate board noise during the power supply process of the RF power management chip. The magnitude of the output voltage is related to the board noise generated by the terminal. Therefore, during the operation of the RF power management chip, the current output voltage of the RF power management chip can be obtained, and the board noise of the terminal can be suppressed based on the output voltage.

[0038] Step 102: Determine the power supply mode of the RF power management chip based on the voltage range of the output voltage, and control the RF power management chip to supply power to the power amplifier based on the power supply mode so that the board noise generated by the terminal meets the board noise suppression condition.

[0039] On one hand, the drop voltage refers to the difference between the output voltage and the shutdown voltage of the RF power management chip. The larger the drop voltage, the more severe the deformation, and the greater the board noise acting on the large power capacitor. On the other hand, when the output voltage of the RF power management chip is smaller, the board noise generated by the terminal is also smaller.

[0040] Based on this, in this embodiment, the power supply mode is determined according to the voltage range of the output voltage, and the RF power management chip is controlled to supply power to the power amplifier according to the determined power supply mode, so that the voltage drop is small, for example, the voltage drop is less than the target difference; or, the output voltage is small, for example, the output voltage is less than a preset voltage threshold. In this way, the board noise generated by the terminal can meet the board noise suppression condition.

[0041] Among them, board noise suppression conditions can refer to the conditions under which board noise generated by the terminal is not perceived by the user.

[0042] The above control method, when the terminal is conducting cellular communication based on the target mode, obtains the current output voltage of the RF power management chip in the terminal that powers the power amplifier. The power amplifier amplifies the uplink cellular signal. Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to power the power amplifier according to the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition. In this way, the terminal can meet the board noise suppression condition by controlling the power supply mode of the RF power management chip to power the power amplifier according to the current output voltage of the RF power management chip. That is, board noise suppression can be achieved without making hardware changes or increasing the PCB area occupied by the terminal, ensuring that users are not affected by board noise problems and can use the terminal normally.

[0043] In one embodiment, the target mode can be TDD (Time Division Duplex) communication mode.

[0044] In TDD cellular communication, the TX (transmit data) link and RX (receive data) link operate time-slot-based and periodically. When the RX link is active, the TX link is off, and vice versa. The power amplifier amplifies the TX cellular signal; therefore, the power amplifier operates periodically.

[0045] To conserve power, the terminal controls the RF power management chip to periodically turn on and off when the TX link is periodically switched on and off. That is, when the TX link is active, the RF power management chip is turned on to supply power to the power amplifier with a high output voltage; when the TX link is inactive, the RF power management chip is turned off. This periodic switching of the RF power management chip causes the large capacitor in the power supply to vibrate, resulting in board noise. When this vibration is transmitted to the earpiece, it severely affects the user's experience with the terminal.

[0046] For example, when the terminal communicates in the B41 band in TDD mode, the uplink TX duty cycle is 20%. Please refer to [reference needed]. Figure 2 The diagram illustrates a comparison of the on and off states of the TX link, RX link, PA, and RF power management chip in this scenario. It can be seen that in TDD mode, the RF power management chip periodically outputs a switching voltage.

[0047] Therefore, in this embodiment of the application, when the terminal performs cellular communication based on TDD mode, the current output voltage of the RF power management chip is obtained, and the power supply mode of the RF power management chip is determined according to the voltage range of the output voltage, so that the terminal meets the board noise suppression condition, so that the user will not perceive board noise in TDD mode, and ensure that the user can use the terminal normally.

[0048] As mentioned above, the drop voltage refers to the difference between the output voltage and the turn-off voltage of the RF power management chip. The larger the drop voltage, the more severe the deformation, and the greater the board noise acting on the capacitor. The inventors of this application conducted tests on multiple prototypes and obtained data on the impact of different drop voltage values ​​on RF board noise under objective conditions, as shown in Table 1. Table 1 uses a drop voltage ranging from 0V to 5V in 0.5V increments as an example.

[0049] (Table 1)

[0050]

[0051]

[0052] Taking a board noise suppression condition of less than 19dBm as an example, Table 1 shows that the smaller the drop voltage, the lower the terminal board noise. Furthermore, when the drop voltage is below 2V, the board noise of each prototype terminal meets the standard. In other words, for the terminal, when the drop voltage of the RF power management chip is lower than the target difference, the terminal's board noise can meet the board noise suppression condition.

[0053] Furthermore, the inventors of this application discovered through additional experimental research that when the output power of the PA is low and the output voltage of the RF power management chip is low (e.g., less than 2V), the board noise suppression condition can still be met. In other words, when the output voltage of the RF power management chip is less than a preset voltage threshold, the board noise of the terminal can meet the board noise suppression condition.

[0054] Therefore, in this embodiment of the application, the power supply mode of the RF power management chip is determined according to the voltage range of the output voltage, so that when the RF power management chip is powered in this power supply mode, the voltage drop of the RF power management chip is within the target difference or the output voltage of the RF power management chip is controlled within the preset voltage threshold, which can solve the board noise problem of the terminal in TDD mode.

[0055] In one embodiment, determining the power supply mode of the RF power management chip based on the voltage range of the output voltage includes: determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold.

[0056] Optionally, the preset voltage threshold is the critical output voltage value of the RF power management chip at which the board noise generated by the terminal is not perceived by the user.

[0057] For example, based on the test data in Table 1, the preset voltage threshold can be 2V.

[0058] Taking a preset voltage threshold of 2V as an example, based on the relationship between the output voltage and the preset voltage threshold, when the output voltage is greater than 2V, the RF power management chip supplies power in the first power supply mode. In this case, the voltage drop must be less than the target difference to meet the board noise suppression condition. When the output voltage is less than 2V, the RF power management chip supplies power in the second power supply mode. In this case, the output voltage of the RF power management chip can be less than the preset voltage threshold, thus meeting the board noise suppression condition.

[0059] The process of determining the power supply mode of the RF power management chip is explained below.

[0060] In one embodiment, determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold includes: if the output voltage is greater than the preset voltage threshold, then determining the power supply mode as a first power supply mode; wherein, the first power supply mode is a mode in which the RF power management chip periodically turns on and off power supply, and the shutdown voltage when the RF power management chip stops supplying power is the first shutdown voltage; the difference between the first shutdown voltage and the output voltage is less than a target difference.

[0061] In other words, during the operation of the RF power management chip, when the terminal determines that the output voltage of the RF power management chip is greater than a preset voltage threshold, it controls the RF power management chip to periodically turn on and off power to the power amplifier. Furthermore, the shutdown voltage when the RF power management chip stops supplying power is the first shutdown voltage.

[0062] Since the difference between the first shutdown voltage and the output voltage is less than the target difference, the board noise suppression condition is met, so that the user will not perceive the board noise and can use the terminal normally.

[0063] In one implementation, the first shutdown voltage can be a fixed voltage value. Specifically, the maximum output voltage of the RF power management chip can be pre-calculated, and the fixed voltage value can be determined based on the difference between this maximum value and the target value. Thus, since the output voltage of the RF power management chip is always less than or equal to the pre-calculated maximum output voltage, when the first shutdown voltage is set to a fixed value, the difference between the output voltage and the fixed voltage value will always be less than the target difference, thereby satisfying the board noise suppression condition. For example, if the pre-calculated maximum output voltage of the RF power management chip is 3.9V, and the target difference is 2V, then the fixed voltage value is set to 2V.

[0064] In another implementation, the terminal pre-stores a target difference value. When the terminal receives the output voltage of the RF power management chip, it determines the current first shutdown voltage in real time based on the output voltage and the target difference value. The terminal then controls the RF power management chip to stop supplying power at this first shutdown voltage, thereby satisfying the board noise suppression condition. For example, if the current output voltage of the RF power management chip is 3.4V and the target difference value is 2V, then the current first shutdown voltage is determined to be 1.5V.

[0065] Optionally, the duty cycle of the RF power management chip is the same as that of the power amplifier. That is, the RF power management chip works when the power amplifier is working, and does not work when the power amplifier is not working.

[0066] For example, taking the terminal in TDD mode with B41 band communication, an uplink duty cycle of 20%, and a first shutdown voltage of 2V as an example, the waveform of the output voltage of the RF power management chip is as follows: Figure 3 As shown, in this case, when the TX link is working (TX on), the RF power management chip supplies power, and the RF power management chip supplies power to PA with a high voltage output voltage; while when the TX link is not working (TX off), the RF power management chip stops supplying power, and the RF power management chip's turn-off voltage is 2V.

[0067] In this embodiment, if the output voltage is greater than a preset voltage threshold, the power supply mode is determined to be the first power supply mode. The first power supply mode involves the RF power management chip periodically turning on and off power. This periodic power supply saves power consumption in the terminal. Furthermore, the shutdown voltage when the RF power management chip stops supplying power in the first power supply mode is the first shutdown voltage. Since the difference between the first shutdown voltage and the output voltage is less than the target difference, the board noise generated by the terminal meets the board noise suppression condition. In other words, by using this power supply mode, power consumption in the terminal can be saved, and the board noise of the terminal can be made imperceptible to the user, ensuring normal use of the terminal.

[0068] In one embodiment, determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold includes: if the output voltage is greater than a transition voltage threshold and less than or equal to the preset voltage threshold, then determining the power supply mode as a second power supply mode; wherein the transition voltage threshold is less than the preset voltage threshold; the second power supply mode is a mode in which the RF power management chip continuously supplies power to the power amplifier.

[0069] When the output voltage is less than or equal to a preset voltage threshold, the terminal's board noise should theoretically meet the board noise suppression condition. However, considering that the impact of board noise on user experience may vary slightly depending on the application scenario, in other words, in some scenarios, when the output voltage is less than or equal to the preset voltage threshold, the board noise generated by the terminal will not be perceived by the user. But in other possible scenarios, when the output voltage is slightly less than the preset voltage threshold, it cannot be completely guaranteed that the user will not perceive the board noise. Based on this, to ensure the stability of board noise suppression, a transition period is set in this embodiment.

[0070] In other words, in addition to the preset voltage threshold, the terminal also has a transition voltage threshold, and the transition voltage threshold is lower than the preset voltage threshold.

[0071] When the output voltage is greater than the transition voltage threshold and less than or equal to the preset voltage threshold, the RF power management chip continuously supplies power to the power amplifier. Since the power supply is continuous, there is no periodic on and off process, so there is no piezoelectric effect on the large power capacitor, and there is no board noise problem, thus satisfying the board noise suppression condition.

[0072] For example, when the preset voltage threshold is set to 2V, the overvoltage threshold can be set to 1.7V, without any specific limitation.

[0073] For example, taking the terminal in TDD mode with B41 band communication, an uplink duty cycle of 20%, and a first shutdown voltage of 2V as an example, the waveform of the output voltage of the RF power management chip is as follows: Figure 4 As shown, in this case, when the TX link is working (TX on) and the TX link is not working (TX off), the RF power management chip remains normally on, and the output voltage of the RF power management chip follows the output power of the power amplifier.

[0074] In this embodiment, a transition period is set between the transition voltage threshold and the preset voltage threshold. When the output voltage is greater than the transition voltage threshold and less than or equal to the preset voltage threshold, the RF power management chip is kept on, that is, the terminal controls the RF power management chip to continuously supply power to the power amplifier, completely avoiding the generation of board noise, ensuring the stability of the terminal's board noise suppression, and ensuring that the user can use the terminal normally from beginning to end without being affected by board noise problems.

[0075] In one embodiment, determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold includes: if the output voltage is less than or equal to a transition voltage threshold, then determining the power supply mode as a third power supply mode; the third power supply mode is a mode in which the RF power management chip periodically turns on and off power supply; wherein, in the third power supply mode, the shutdown voltage when the RF power management chip stops supplying power is less than a first shutdown value.

[0076] Since the transition voltage threshold is less than the preset voltage threshold, if the output voltage is less than or equal to the transition voltage threshold, which is also less than the preset voltage threshold, the board noise suppression condition can be met. Therefore, the terminal can normally control the RF power management chip to periodically turn on and off power supply. Alternatively, the duty cycle of the RF power management chip can be the same as the duty cycle of the power amplifier.

[0077] In addition, in the third power supply mode, the shutdown voltage of the RF power management chip when it stops supplying power is less than the first shutdown value, such as the 0V shutdown voltage when the RF power management chip is working normally, thereby further saving terminal power consumption and ensuring the normal operation of the RF power management chip.

[0078] For example, taking the terminal in TDD mode with B41 band communication, an uplink duty cycle of 20%, and a shutdown voltage of 0V in the third power supply mode as an example, the waveform of the output voltage of the RF power management chip is as follows: Figure 5 As shown, in this case, when the TX link is working (TX on), the RF power management chip supplies power, and the RF power management chip supplies power to PA with a high voltage output voltage; while when the TX link is not working (TX off), the RF power management chip stops supplying power, and the RF power management chip's shutdown voltage is 0V.

[0079] In this embodiment, when the output voltage is less than or equal to the transition voltage threshold, the terminal controls the RF power management chip to periodically turn on and off power supply. In the third power supply mode, the shutdown voltage of the RF power management chip when it stops supplying power can be 0V. In this way, the terminal power consumption is saved by periodic power supply, and the terminal can meet the board noise suppression condition without additional hardware improvements, ensuring that the user can use the terminal normally without being affected by board noise.

[0080] In one embodiment, such as Figure 6 The diagram illustrates a flowchart of determining an output voltage according to an embodiment of this application. Obtaining the current output voltage of the RF power management chip in the terminal, which powers the power amplifier used for amplifying uplink cellular signals, includes:

[0081] Step 601: Obtain the current output power of the power amplifier as fed back by the power amplifier.

[0082] Step 602: Determine the output voltage based on the output power.

[0083] The output power of the power amplifier and the output voltage of the RF power management chip have a one-to-one mapping relationship. That is, when the output power of the power amplifier changes, the output voltage of the RF power management chip must also change accordingly to ensure that the power amplifier can work normally.

[0084] The power amplifier can provide real-time feedback on its current output power, which is then obtained by the terminal.

[0085] Optionally, the terminal has a pre-installed power mapping table, which includes multiple sets of correspondences between different preset output powers and preset output voltages. The terminal queries the power mapping table based on the acquired output power to determine the preset output voltage corresponding to that output power, and then controls the output voltage of the RF power management chip to supply power to the power amplifier according to the preset output voltage.

[0086] For example, as mentioned above, the control method provided in this application embodiment can be applied to a transceiver in a terminal. Specifically, the transceiver is connected to the RF power management chip via MIPI (Mobile Industry Processor Interface); the transceiver is also connected to a power amplifier, which is followed by a filter, antenna switch, and antenna on the TX link. The transceiver generates an uplink cellular signal and sends it to the power amplifier. The power amplifier amplifies the uplink cellular signal and feeds back its current output power to the transceiver. The transceiver controls the RF power management chip to supply power to the power amplifier with the corresponding output voltage based on the output power. The uplink cellular signal, after being amplified by the power amplifier, is filtered by the filter, then passes through the antenna switch to reach the antenna, and is transmitted into free space by the antenna.

[0087] In one embodiment, such as Figure 7 The diagram shows a flowchart of another control method provided in an embodiment of this application. The method further includes:

[0088] Step 701: Determine whether the terminal is in a call state.

[0089] Step 702, if yes, then execute the step of obtaining the current output voltage of the RF power management chip in the terminal that powers the power amplifier used for amplifying uplink cellular signals.

[0090] During the periodic switching of the RF power management chip on and off, the vibration of the large power capacitor generates board noise, which is then transmitted to the earpiece. In a call scenario, this board noise is perceived by the user through the earpiece, thus affecting the user's ability to use the terminal for calls.

[0091] Therefore, in this embodiment, once it is determined that the terminal is in a call scenario (i.e., the terminal is in a call state), the current output voltage of the RF power management chip that powers the power amplifier used for amplifying uplink cellular signals in the terminal is obtained. Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to supply power to the power amplifier according to the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition. In this way, when the user uses the terminal for a call, they will not perceive board noise, and thus can make a normal call.

[0092] Optionally, the terminal can detect whether the earpiece in the current terminal is occupied; if so, it determines that the terminal is in a call state. Optionally, the terminal's call state can be in a VONR (Voice over New Radio) call scenario or a VOLTE (Voice over LTE) call scenario, etc., without specific limitations.

[0093] For ease of understanding, the following describes the optimized TDD board noise control method provided in this application embodiment using a complete example. Other specific limitations can be found in the limitations of the control method described above.

[0094] Please refer to Figure 8 This diagram illustrates a hardware structure of a terminal according to an embodiment of this application. The transceiver modulates the uplink cellular signal and transmits it to the power amplifier (PA), while simultaneously controlling the output of the RF power management chip via the MIPI bus to power the PA. The PA amplifies the uplink cellular signal. The RF power management chip's operating state is controlled by the transceiver, with bypass and normal states. In bypass state, the RF power management chip remains constantly on, continuously powering the PA; in normal state, the RF power management chip switches its output voltage according to different modes to power the PA. A filter filters the uplink cellular signal. An antenna switch selects the operating frequency band, thereby transmitting the filtered uplink cellular signal to the corresponding antenna. The antenna (ANT) transmits the uplink cellular signal.

[0095] To control the voltage drop within the target range, it is necessary to control the output voltage and shutdown voltage of the RF power management chip. Please refer to [reference needed]. Figure 9 The diagram illustrates a flowchart of a method for controlling the operation of a radio frequency power management chip according to an embodiment of this application.

[0096] When the terminal is in a call state under TDD mode cellular communication, the transceiver first obtains the output power of the power amplifier fed back from the power amplifier in the terminal, and then detects the output voltage of the RF power management chip corresponding to the output power. There is a one-to-one mapping relationship between output power and output voltage.

[0097] When the output voltage is determined to be greater than 2V, the transceiver controls the RF power management chip to enter the normal state through MIPI, and at the same time sets the shutdown voltage of the RF power management chip to 2V.

[0098] When the output voltage is greater than 1.7V and less than or equal to 2V, the RF power management chip enters bypass mode, meaning the RF power management chip remains constantly on, and the output voltage varies with the output power of each power amplifier. Different transmit powers correspond to different output voltages; the higher the power, the higher the output voltage.

[0099] When the output voltage is less than or equal to 1.7V, the RF power management chip is controlled to enter the normal state, and the shutdown voltage of the RF power management chip is set to 0V.

[0100] In addition, when the terminal communicates in TDD mode, the RF power management chip can use APT or ET technology to provide power during operation, thereby saving power consumption of the RF system.

[0101] In this embodiment, the relationship between different output voltages and different voltage drops and board noise is studied to identify the threshold output voltage and threshold voltage drop, thereby controlling the board noise problem. The output voltage is detected, and three voltage ranges are established. Within each voltage range, the RF power management chip is controlled to enter a different operating mode. In this way, the board noise problem of the RF system is optimized through software, avoiding layout constraints and saving PCB layout area. Furthermore, by identifying different output voltages, the software controls the shutdown voltage of the RF power management chip to achieve power saving.

[0102] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0103] Based on the same inventive concept, this application also provides a control device for implementing the control method described above. The solution provided by this device is similar to the solution described in the above method; therefore, specific limitations in one or more control device embodiments provided below can be found in the limitations of the control method described above, and will not be repeated here.

[0104] In one embodiment, such as Figure 10 As shown, a control device is provided. The control device 1000 includes: an acquisition module 1001 and a control module 1002, wherein:

[0105] The acquisition module 1001 is used to acquire the current output voltage of the radio frequency power management chip that powers the power amplifier in the terminal when the terminal is conducting cellular communication based on the target mode. The power amplifier is used to amplify the uplink cellular signal.

[0106] The control module 1002 is used to determine the power supply mode of the RF power management chip according to the voltage range of the output voltage, and control the RF power management chip to supply power to the power amplifier based on the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition.

[0107] In one embodiment, the control module 1002 is specifically used to: determine the power supply mode of the radio frequency power management chip based on the relationship between the output voltage and a preset voltage threshold.

[0108] In one embodiment, the preset voltage threshold is the critical output voltage value of the RF power management chip at which the board noise generated by the terminal is not perceived by the user.

[0109] In one embodiment, the control module 1002 is specifically configured to: if the output voltage is greater than a preset voltage threshold, determine the power supply mode as a first power supply mode; the first power supply mode is a mode in which the RF power management chip periodically turns on and off power supply, and the shutdown voltage when the RF power management chip stops supplying power is the first shutdown voltage; wherein, the difference between the first shutdown voltage and the output voltage is less than a target difference.

[0110] In one embodiment, the control module 1002 is specifically configured to: if the output voltage is greater than the transition voltage threshold and less than or equal to the preset voltage threshold, determine the power supply mode as the second power supply mode; wherein the transition voltage threshold is less than the preset voltage threshold; the second power supply mode is a mode in which the RF power management chip continuously supplies power to the power amplifier.

[0111] In one embodiment, the control module 1002 is specifically used to determine the power supply mode as a third power supply mode if the output voltage is less than or equal to the transition voltage threshold; the third power supply mode is a mode in which the RF power management chip periodically turns on and off power supply; wherein, in the third power supply mode, the shutdown voltage when the RF power management chip stops supplying power is less than the first shutdown value.

[0112] In one embodiment, the acquisition module 1001 is specifically used to: acquire the current output power of the power amplifier fed back by the power amplifier; and determine the output voltage based on the output power.

[0113] In one embodiment, the apparatus further includes a determining module for: determining whether the terminal is in a call state; if so, performing the step of obtaining the current output voltage of the radio frequency power management chip in the terminal that powers the power amplifier used for amplifying uplink cellular signals.

[0114] In one embodiment, the target mode is TDD communication mode.

[0115] Each module in the aforementioned control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0116] In one embodiment, a terminal is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 11As shown, the terminal includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a control method. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the terminal can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the terminal shell, or external keyboards, touchpads, or mice, etc.

[0117] Those skilled in the art will understand that Figure 11 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the terminal to which the present application is applied. A specific terminal may include more or fewer components than those shown in the figure, or may combine certain components, or may have different component arrangements.

[0118] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0119] When the terminal performs cellular communication based on the target mode, the current output voltage of the RF power management chip that powers the power amplifier in the terminal is obtained. The power amplifier is used to amplify the uplink cellular signal. Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to power the power amplifier based on the power supply mode so that the board noise generated by the terminal meets the board noise suppression condition.

[0120] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0121] The power supply mode of the RF power management chip is determined based on the relationship between the output voltage and the preset voltage threshold.

[0122] In one embodiment, the preset voltage threshold is the critical output voltage value of the RF power management chip at which the board noise generated by the terminal is not perceived by the user.

[0123] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0124] If the output voltage is greater than the preset voltage threshold, the power supply mode is determined to be the first power supply mode. The first power supply mode is a mode in which the RF power management chip periodically turns on and off power supply, and the shutdown voltage when the RF power management chip stops supplying power is the first shutdown voltage. The difference between the first shutdown voltage and the output voltage is less than the target difference.

[0125] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0126] If the output voltage is greater than the transition voltage threshold and less than or equal to the preset voltage threshold, the power supply mode is determined to be the second power supply mode; wherein, the transition voltage threshold is less than the preset voltage threshold; the second power supply mode is the mode in which the RF power management chip continuously supplies power to the power amplifier.

[0127] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0128] If the output voltage is less than or equal to the transition voltage threshold, the power supply mode is determined to be the third power supply mode; the third power supply mode is a mode in which the RF power management chip periodically turns on and off power supply; wherein, in the third power supply mode, the shutdown voltage when the RF power management chip stops supplying power is less than the first shutdown value.

[0129] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0130] Obtain the current output power of the power amplifier from the feedback of the power amplifier; determine the output voltage based on the output power.

[0131] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0132] Determine if the terminal is in a call state; if so, proceed to obtain the current output voltage of the RF power management chip in the terminal that powers the power amplifier used to amplify uplink cellular signals.

[0133] In one embodiment, the target mode is TDD communication mode.

[0134] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0135] When the terminal performs cellular communication based on the target mode, the current output voltage of the RF power management chip that powers the power amplifier in the terminal is obtained. The power amplifier is used to amplify the uplink cellular signal. Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to power the power amplifier based on the power supply mode so that the board noise generated by the terminal meets the board noise suppression condition.

[0136] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0137] The power supply mode of the RF power management chip is determined based on the relationship between the output voltage and the preset voltage threshold.

[0138] In one embodiment, the preset voltage threshold is the critical output voltage value of the RF power management chip at which the board noise generated by the terminal is not perceived by the user.

[0139] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0140] If the output voltage is greater than the preset voltage threshold, the power supply mode is determined to be the first power supply mode. The first power supply mode is a mode in which the RF power management chip periodically turns on and off power supply, and the shutdown voltage when the RF power management chip stops supplying power is the first shutdown voltage. The difference between the first shutdown voltage and the output voltage is less than the target difference.

[0141] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0142] If the output voltage is greater than the transition voltage threshold and less than or equal to the preset voltage threshold, the power supply mode is determined to be the second power supply mode; wherein, the transition voltage threshold is less than the preset voltage threshold; the second power supply mode is the mode in which the RF power management chip continuously supplies power to the power amplifier.

[0143] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0144] If the output voltage is less than or equal to the transition voltage threshold, the power supply mode is determined to be the third power supply mode; the third power supply mode is a mode in which the RF power management chip periodically turns on and off power supply; wherein, in the third power supply mode, the shutdown voltage when the RF power management chip stops supplying power is less than the first shutdown value.

[0145] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0146] Obtain the current output power of the power amplifier from the feedback of the power amplifier; determine the output voltage based on the output power.

[0147] In one embodiment, when the computer program is executed by a processor, it further performs the following steps:

[0148] Determine if the terminal is in a call state; if so, proceed to obtain the current output voltage of the RF power management chip in the terminal that powers the power amplifier used to amplify uplink cellular signals.

[0149] In one embodiment, the target mode is TDD communication mode.

[0150] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0151] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0152] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0153] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A control method, characterized in that, For a terminal, the method includes: When the terminal performs cellular communication based on the target mode, the current output voltage of the radio frequency power management chip that powers the power amplifier in the terminal is obtained, and the power amplifier is used to amplify the uplink cellular signal. Based on the voltage range of the output voltage, the power supply mode of the RF power management chip is determined, and the RF power management chip is controlled to supply power to the power amplifier based on the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition. In the power supply mode, the difference between the output voltage of the RF power management chip and the shutdown voltage when power is stopped is less than a target difference, or the output voltage of the RF power management chip is less than a preset voltage threshold. The preset voltage threshold is the critical output voltage value of the RF power management chip at which the board noise generated by the terminal is not perceived by the user.

2. The method according to claim 1, characterized in that, Determining the power supply mode of the RF power management chip based on the voltage range of the output voltage includes: The power supply mode of the RF power management chip is determined based on the relationship between the output voltage and the preset voltage threshold.

3. The method according to claim 2, characterized in that, The step of determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold includes: If the output voltage is greater than the preset voltage threshold, then the power supply mode is determined to be the first power supply mode; The first power supply mode is a mode in which the RF power management chip periodically turns on and off power, and the shutdown voltage when the RF power management chip stops supplying power is the first shutdown voltage. Wherein, the difference between the first turn-off voltage and the output voltage is less than the target difference.

4. The method according to claim 3, characterized in that, The step of determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold includes: If the output voltage is greater than the transition voltage threshold and less than or equal to the preset voltage threshold, then the power supply mode is determined to be the second power supply mode; wherein the transition voltage threshold is less than the preset voltage threshold. The second power supply mode is the mode in which the RF power management chip continuously supplies power to the power amplifier.

5. The method according to claim 4, characterized in that, The step of determining the power supply mode of the RF power management chip based on the relationship between the output voltage and a preset voltage threshold includes: If the output voltage is less than or equal to the transition voltage threshold, then the power supply mode is determined to be the third power supply mode; The third power supply mode is a mode in which the RF power management chip periodically turns on and off power; wherein, in the third power supply mode, the shutdown voltage of the RF power management chip when it stops supplying power is less than the first shutdown voltage.

6. The method according to any one of claims 1 to 5, characterized in that, The step of obtaining the current output voltage of the RF power management chip that powers the power amplifier in the terminal includes: Obtain the current output power of the power amplifier as fed back by the power amplifier; The output voltage is determined based on the output power.

7. The method according to any one of claims 1 to 5, characterized in that, The method further includes: Determine whether the terminal is in a call state; If so, then the step of obtaining the current output voltage of the RF power management chip that powers the power amplifier in the terminal is performed.

8. The method according to any one of claims 1 to 5, characterized in that, The target mode is TDD communication mode.

9. A control device, characterized in that, For a terminal, the device includes: The acquisition module is used to acquire the current output voltage of the radio frequency power management chip that powers the power amplifier in the terminal when the terminal is conducting cellular communication based on the target mode. The power amplifier is used to amplify the uplink cellular signal. The control module is used to determine the power supply mode of the RF power management chip according to the voltage range of the output voltage, and control the RF power management chip to supply power to the power amplifier based on the power supply mode, so that the board noise generated by the terminal meets the board noise suppression condition. In the power supply mode, the difference between the output voltage of the RF power management chip and the shutdown voltage when power is stopped is less than a target difference, or the output voltage of the RF power management chip is less than a preset voltage threshold. The preset voltage threshold is the critical output voltage value of the RF power management chip at which the board noise generated by the terminal is not perceived by the user.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 8.

11. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 8.

12. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 8.

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