Load matching method and electronic equipment

Abstract

The invention discloses a load matching method and electronic equipment, and belongs to the technical field of communication. The load matching method is applied to the terminal, and comprises the following steps: determining whether there is an uplink transmission behavior; under the condition that the uplink transmission behavior exists, the load matching mode of a power amplifier (PA) module is determined according to the waveform modulation mode of the uplink transmission signal, and the PA module is used for carrying out power amplification on the uplink transmission signal.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a load matching method and an electronic device. BACKGROUND

[0002] With the continuous evolution of mobile communication technology, the improvement of terminal uplink over the air (OTA) performance has become a key direction of the evolution of mobile communication technology. The uplink OTA performance of the terminal is usually limited by the power amplifier (PA) module capability, and the PA module capability is limited by the balance between high energy efficiency and linearity of mobile communication technology under different modulation mode peak to average power ratio (PAPR), and the load matching mode of the PA module will affect the balance between high energy efficiency and linearity of the PA module. Therefore, in order to improve the uplink OTA capability of the terminal, the PA module needs to be optimally load matched. SUMMARY

[0003] The purpose of the embodiments of the present application is to provide a load matching method and an electronic device, which can at least solve the problem of how to load match the PA module to improve the uplink OTA performance of the terminal.

[0004] In a first aspect, the embodiments of the present application provide a load matching method applied to a terminal, and the method comprises: determining whether there is uplink transmission behavior; in the case that there is uplink transmission behavior, determining a load matching mode of a power amplifier (PA) module according to a waveform modulation mode of an uplink transmission signal, the PA module being configured to perform power amplification on the uplink transmission signal.

[0005] In a second aspect, the embodiments of the present application provide a load matching device, and the device comprises: a first determining module configured to determine whether there is uplink transmission behavior; a second determining module configured to, in the case that there is uplink transmission behavior, determine a load matching mode of a power amplifier (PA) module according to a waveform modulation mode of an uplink transmission signal, the PA module being configured to perform power amplification on the uplink transmission signal.

[0006] In a third aspect, the embodiments of the present application provide an electronic device, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the method according to the first aspect.

[0007] Fourthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0008] Fifthly, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect.

[0009] In a sixth aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the method described in the first aspect.

[0010] In this embodiment, since the terminal can determine the load matching mode of the PA module according to the waveform modulation mode of the uplink transmission signal when it has uplink transmission behavior, the load matching mode of the PA module can be adjusted in real time according to the waveform modulation mode of the uplink transmission signal, so that the PA module can have the best load matching mode, thereby achieving a balance between high energy efficiency and linearity of the PA module, and thus effectively improving the uplink OTA performance of the terminal. Attached Figure Description

[0011] Figure 1 This is a schematic flowchart of a load matching method according to an embodiment of this application; Figure 2 This is a schematic diagram of a radio frequency antenna architecture according to an embodiment of this application; Figure 3 This is a schematic diagram illustrating the principle of load matching according to an embodiment of this application; Figure 4 This is a schematic flowchart of a load matching method according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a load matching device according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application; Figure 7 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0012] With the continuous evolution of mobile communication technology, problems such as insufficient uplink capability and coverage of terminals have been exposed one after another. As the proportion of uplink services in the 5G era is increasing year by year, improving the uplink OTA performance of terminals has become a key direction for the evolution of communication technology.

[0013] The uplink OTA performance of a terminal is typically limited by the capabilities of the PA module, which in turn is constrained by the balance between energy efficiency and linearity under different PAPR modulation schemes in mobile communication technology. To achieve this balance, voltage tuning, bias tuning, and load tuning are commonly employed. Voltage tuning and bias tuning heavily rely on platform algorithm competitiveness, resulting in lower terminal availability. Load tuning, on the other hand, depends on terminal architecture configuration and scheduling algorithms, exhibiting relatively lower platform dependence and higher terminal availability. Therefore, load tuning can be used to achieve a balance between energy efficiency and linearity in the PA module.

[0014] The most important purpose of a power amplifier (PA) module is to effectively amplify and output power. To maximize RF power output, the concept of optimal load matching arises. Therefore, to effectively improve the uplink PTA performance of the terminal, optimal load matching of the PA module is necessary.

[0015] This application provides a load matching method and an electronic device. The method is applied to a terminal and includes: determining whether there is uplink transmission activity; and, if there is uplink transmission activity, determining the load matching mode of a power amplifier (PA) module based on the waveform modulation mode of the uplink transmission signal. The PA module is used to amplify the power of the uplink transmission signal. Thus, since the terminal can determine the load matching mode for the PA module based on the waveform modulation mode of the uplink transmission signal when there is uplink transmission activity, the load matching mode for the PA module can be adjusted in real time according to the waveform modulation mode of the uplink transmission signal. This allows the PA module to have an optimal load matching mode, thereby achieving a balance between high energy efficiency and linearity of the PA module, and effectively improving the uplink OTA performance of the terminal.

[0016] 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.

[0017] 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.

[0018] The load matching method and electronic device provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0019] like Figure 1 As shown, this application provides a load matching method applied to a terminal; in other words, the load matching method can be executed by the terminal or software or hardware installed on the terminal. The load matching method includes the following steps.

[0020] S102: Determine if there is uplink transmission behavior.

[0021] When a terminal is connected to the network, it can determine whether there is uplink transmission activity.

[0022] In some implementations, when determining whether there is an uplink transmission activity, the terminal can check whether its internal radio frequency module needs to send an uplink transmission signal. If an uplink transmission signal needs to be sent, then uplink transmission activity is determined to have occurred; otherwise, it is determined that no uplink transmission activity has occurred. Of course, in other implementations, the terminal can also determine whether there is an uplink transmission activity through other methods, which are not specifically limited here.

[0023] S104: When there is uplink transmission, determine the load matching mode of the power amplifier (PA) module according to the waveform modulation mode of the uplink transmission signal. The PA module is used to amplify the power of the uplink transmission signal.

[0024] There are various waveform modulation methods for the uplink transmit signal, including but not limited to MPR0-MPR2.5, MPR3-MPR5, and MPR5.5-MPR6.5 waveforms, where MPR stands for Maximum Power Reduction. There are also various load matching methods for the PA module, including but not limited to optimal efficiency point load matching, optimal linearity point load matching, and optimal gain point load matching. Optimal efficiency point load matching maintains low power consumption at maximum output power. Optimal linearity point load matching increases RF output power while maintaining the same Adjacent Channel Leakage Ratio (ACLR). Optimal gain point load matching increases RF output power while maintaining the same Error Vector Magnitude (EVM). In this embodiment, different load matching methods can be selected based on the different waveform modulation methods of the uplink transmit signal.

[0025] In some implementations, the load matching method of the PA module is determined based on the waveform modulation method of the uplink transmitted signal, and may include any of the following: When the waveform modulation methods include MPR0-MPR2.5 waveforms, the load matching method is determined to be the optimal efficiency load matching method; When the waveform modulation methods include MPR3-MPR5 waveforms, the load matching method is determined to be the optimal linear point load matching method; When the waveform modulation methods include MPR5.5-MPR6.5 waveforms, the load matching method is determined to be the optimal gain point load matching method.

[0026] Since the bottleneck of the MPR0-MPR2.5 waveform is the power consumption at maximum output power, its ACLR and EVM have a large performance redundancy. Therefore, it can be adapted to the optimal efficiency point load matching method, so that the power consumption can be reduced to a low level while maintaining the maximum RF output power.

[0027] Since the bottleneck of the MPR3-MPR5 waveform is mainly in ACLR, the optimal linear point load matching method can be adapted. This allows for higher RF power while maintaining the same ACLR performance. In other words, the RF output power can be maximized by improving the ACLR nonlinearity.

[0028] Since the bottleneck of the MPR5.5-MPR6.5 waveform is mainly in the EVM, the optimal gain point load matching method can be adapted to achieve higher RF power while maintaining the same EVM performance. In other words, by increasing the PA gain, the RF output power can be pushed as high as possible.

[0029] In this way, since the load matching mode of the PA module can be determined according to the waveform modulation mode of the uplink transmitted signal, the PA module can have the optimal load matching mode, thereby achieving a balance between high energy efficiency and linearity of the PA module, and thus effectively improving the uplink OTA performance of the terminal.

[0030] In some implementations, the terminal may not perform uplink transmission. When the terminal does not perform uplink transmission, it may include: Set the load matching method of the PA module to the default load matching method.

[0031] The default load matching method can be the optimal efficiency point load matching method, the optimal linear point load matching method, or the optimal gain point load matching method mentioned above, or it can be other load matching methods, without specific limitations here.

[0032] After determining the load matching method of the PA module according to the above method, some embodiments may further include: Based on the load matching method of the PA module, control the antenna tuner to perform load adjustment.

[0033] The antenna tuner (which can be represented as an antenna tuner) is connected to the antenna. After determining the load matching method of the PA module, the antenna tuner can be controlled to perform load tuning according to the load matching method. That is, the load matching tuning is completed through the antenna tuner. At this time, the radio frequency can output power through the corresponding load tuning to complete the transmission of the uplink signal.

[0034] In this embodiment, since the terminal can determine the load matching mode of the PA module according to the waveform modulation mode of the uplink transmission signal when it has uplink transmission behavior, the load matching mode of the PA module can be adjusted in real time according to the waveform modulation mode of the uplink transmission signal, so that the PA module can have the best load matching mode, thereby achieving a balance between high energy efficiency and linearity of the PA module, and thus effectively improving the uplink OTA performance of the terminal.

[0035] To facilitate understanding of the load matching method provided in the embodiments of this application, some more specific embodiments will be used as examples for illustration below. Please refer to [link to specific examples]. Figures 2 to 4 .

[0036] Figure 2 This is a schematic diagram of a radio frequency antenna architecture according to an embodiment of this application. Figure 2 The antenna architecture shown includes a modem, transceiver, PA module, low noise amplifier (LNA), filter (BWP), switches (single-pole double-throw switch, single-pole quad-throw switch, four-input four-output RF switch), antennas (ANT0-ANT3), and tuners (one tuner for each ANT). Figure 2 In the process, the RF output is connected to the antenna via an RF switch. The antenna load response directly affects the PA module, so a load tuner is added to each antenna ANT.

[0037] Figure 3 This is a schematic diagram illustrating the principle of load matching according to an embodiment of this application. Figure 3 In this context, Zs represents the source impedance. After the equipment leaves the factory, Zs is essentially fixed or has minimal fluctuations. L The load impedance is adjustable. The technical solution of this application embodiment addresses Z... LBy controlling the PA module, different performance levels can be achieved under different modulation methods, thereby balancing the PA module's high energy efficiency and linearity and effectively improving the terminal's uplink OTA performance. Specifically, the antenna completes load matching and debugging through a tuner, and the RF output power is debugged according to the corresponding load. In actual user scenarios, the uplink OTA identifies and calls different tuner load matching and RF output power based on the network scheduling status.

[0038] Figure 4 This is a schematic flowchart of a load matching method according to an embodiment of this application. Figure 4 In the illustrated embodiment, different load matching can be used with the antenna Tunner under different modulation schemes during the uplink transmit cycle. Figure 4 The load matching method shown includes the following steps.

[0039] Step 1: Power on your phone and register with the network. After completing the network registration, stay logged in.

[0040] Step 2: Determine if there is any uplink transmission activity.

[0041] If yes, proceed to step 3; otherwise, proceed to step 9.

[0042] Step 3: Determine if the transmitted waveform is MPR0-MPR2.5.

[0043] That is, determine whether the transmission modulation mode is an MPR0-MPR2.5 waveform. If yes, proceed to step 4; otherwise, return to step 2.

[0044] Step 4: The antenna tuner uses the PA's optimal efficiency point for load matching.

[0045] This load matching method can reduce power consumption while maintaining maximum output power.

[0046] Step 5: Determine if the transmitted waveform is MPR3-MPR5.

[0047] That is, determine whether the transmission modulation mode is an MPR3-MPR5 waveform. If yes, proceed to step 6; otherwise, return to step 3.

[0048] Step 6: Antenna Tunner uses PA's best linear point load matching.

[0049] This load matching method can improve RF output power while maintaining the same ACLR performance.

[0050] Step 7: Determine if the transmitted waveform is MPR5.5-MPR6.5.

[0051] That is, determine whether the transmission modulation mode is an MPR5.5-MPR6.5 waveform. If yes, proceed to step 8; otherwise, return to step 5.

[0052] Step 8: Antenna Tunner uses PA's optimal gain point load matching.

[0053] This load matching method can improve RF output power while maintaining the same EVM performance.

[0054] Step 9: Tunner uses the default load matching.

[0055] exist Figure 4 In the illustrated high-efficiency uplink OTA solution for mobile phones, under low-order modulation (MPR0-MPR2.5), power consumption can be reduced to a low level while maintaining maximum RF output power. Under MPR3-MPR5 modulation, RF output power can be maximized by improving ACLR nonlinearity. Under high-order modulation (MPR5.5-MPR6.5), RF output power can be maximized by increasing PA gain. The antenna tuner is a mature component in RF antenna architecture, with relatively controllable cost and area, offering advantages in feasibility, low cost, and miniaturization compared to adjustable load impedance chip solutions.

[0056] The load matching method provided in this application can be executed by a load matching device. This application uses the example of a load matching device executing the load matching method to illustrate the load matching device provided in this application.

[0057] Figure 5 This is a schematic diagram of the load matching device 50 according to an embodiment of this application. Figure 5 As shown, in some embodiments, the load matching device 50 of this application includes a first determining module 51 and a second determining module 52, wherein: The first determining module 51 is used to determine whether there is uplink transmission behavior; The second determining module 52 is used to determine the load matching mode of the power amplifier PA module according to the waveform modulation mode of the uplink transmission signal when there is uplink transmission behavior. The PA module is used to amplify the power of the uplink transmission signal.

[0058] In some implementations, the second determining module 52 is used for any of the following: When the waveform modulation method includes the maximum power backoff MPR0-MPR2.5 waveform, the load matching method is determined to be the optimal efficiency point load matching method; When the waveform modulation method includes MPR3-MPR5 waveforms, the load matching method is determined to be the optimal linear point load matching method; When the waveform modulation method includes MPR5.5-MPR6.5 waveforms, the load matching method is determined to be the optimal gain point load matching method.

[0059] In some embodiments, the second determining module 52 is further configured to: In the absence of uplink transmission, the load matching mode of the PA module is determined to be the default load matching mode.

[0060] In some embodiments, the second determining module 52 is further configured to: After determining the load matching mode of the PA module, the antenna tuner is controlled to perform load adjustment according to the load matching mode of the PA module.

[0061] In this embodiment, since the terminal can determine the load matching mode of the PA module according to the waveform modulation mode of the uplink transmission signal when it has uplink transmission behavior, the load matching mode of the PA module can be adjusted in real time according to the waveform modulation mode of the uplink transmission signal, so that the PA module can have the best load matching mode, thereby achieving a balance between high energy efficiency and linearity of the PA module, and thus effectively improving the uplink OTA performance of the terminal.

[0062] The load matching device in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the specific type of device.

[0063] The load matching device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit it.

[0064] The load matching device provided in this application embodiment can achieve Figure 1 and Figure 4 To avoid repetition, the various processes implemented in the method implementation examples will not be described again here.

[0065] Optionally, such as Figure 6 As shown, this application embodiment also provides an electronic device 600, including a processor 601 and a memory 602. The memory 602 stores a program or instructions that can run on the processor 601. When the program or instructions are executed by the processor 601, they implement the various steps of the above-described load matching method embodiment and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0066] 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.

[0067] Figure 7 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of this application. The electronic device 700 includes, but is not limited to, components such as: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0068] Those skilled in the art will understand that the electronic device 700 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 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 7 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. The processor 710 is used to determine whether there is uplink transmission behavior; if there is uplink transmission behavior, it determines the load matching mode of the power amplifier PA module according to the waveform modulation mode of the uplink transmission signal, and the PA module is used to amplify the power of the uplink transmission signal.

[0069] Since the terminal can determine the load matching mode of the PA module based on the waveform modulation mode of the uplink transmission signal when it has uplink transmission behavior, the load matching mode of the PA module can be adjusted in real time according to the waveform modulation mode of the uplink transmission signal, so that the PA module can have the best load matching mode, thereby achieving a balance between high energy efficiency and linearity of the PA module, and thus effectively improving the uplink OTA performance of the terminal.

[0070] It is understood that the implementation process of each implementation method mentioned in this embodiment can be referred to Figure 1 The descriptions of the method embodiments shown herein, which can achieve the same or corresponding technical effects, will not be repeated here to avoid repetition.

[0071] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0072] The memory 709 can be used to store software programs and various data. The memory 709 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 709 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 709 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0073] Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0074] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described load matching method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0075] 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.

[0076] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described load matching method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0077] 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.

[0078] This application provides a computer program product that is stored in a storage medium and executed by at least one processor to implement the various processes of the load matching method embodiments described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0079] 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.

[0080] 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.

[0081] 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 load matching method, characterized in that, Applied to terminals, including: Determine if there is any uplink transmission activity; In the case of uplink transmission, the load matching mode of the power amplifier (PA) module is determined according to the waveform modulation mode of the uplink transmission signal. The PA module is used to amplify the power of the uplink transmission signal.

2. The method according to claim 1, characterized in that, The determination of the load matching method of the PA module based on the waveform modulation method of the uplink transmitted signal includes any one of the following: When the waveform modulation method includes the maximum power backoff MPR0-MPR2.5 waveform, the load matching method is determined to be the optimal efficiency point load matching method; When the waveform modulation method includes MPR3-MPR5 waveforms, the load matching method is determined to be the optimal linear point load matching method; When the waveform modulation method includes MPR5.5-MPR6.5 waveforms, the load matching method is determined to be the optimal gain point load matching method.

3. The method according to claim 1, characterized in that, The method further includes: In the absence of uplink transmission, the load matching mode of the PA module is determined to be the default load matching mode.

4. The method according to any one of claims 1 to 3, characterized in that, After determining the load matching method of the PA module, the method further includes: The antenna tuner is controlled to perform load adjustment according to the load matching method of the PA module.

5. A load matching device, characterized in that, include: The first determining module is used to determine whether there is uplink transmission behavior; The second determining module is used to determine the load matching mode of the power amplifier (PA) module based on the waveform modulation mode of the uplink transmission signal when there is uplink transmission behavior. The PA module is used to amplify the power of the uplink transmission signal.

6. The apparatus according to claim 5, characterized in that, The second determining module is used for any of the following: When the waveform modulation method includes the maximum power backoff MPR0-MPR2.5 waveform, the load matching method is determined to be the optimal efficiency point load matching method; When the waveform modulation method includes MPR3-MPR5 waveforms, the load matching method is determined to be the optimal linear point load matching method; When the waveform modulation method includes MPR5.5-MPR6.5 waveforms, the load matching method is determined to be the optimal gain point load matching method.

7. The apparatus according to claim 5, characterized in that, The second determining module is further configured to: In the absence of uplink transmission, the load matching mode of the PA module is determined to be the default load matching mode.

8. The apparatus according to any one of claims 5 to 7, characterized in that, The second determining module is further configured to: After determining the load matching mode of the PA module, the antenna tuner is controlled to perform load adjustment according to the load matching mode of the PA module.

9. An electronic device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the method as described in any one of claims 1 to 4.

10. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 4.

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