Signal matching method and device, radio frequency front end module and storage medium

Abstract

This application discloses a signal matching method, apparatus, RF front-end module, and storage medium, belonging to the field of signal processing technology. The signal matching method includes: identifying a device to be mounted based on an identification signal to determine the device model; and connecting an RF input signal matching the model of the device to be mounted to a target pin of the device; wherein the device to be mounted is used to mount in an RF front-end module. The technical solution of this application can achieve automatic identification of device models and dynamic switching of RF paths during the device mounting process in the RF front-end module, completely eliminating manual configuration and reducing costs and error rates.

Description

Technical Field

[0001] This application relates to the field of signal processing technology, specifically to a signal matching method, apparatus, radio frequency front-end module, and storage medium. Background Technology

[0002] In wireless communication equipment, the radio frequency (RF) front-end module is a critical component, and its performance directly affects the communication quality of the device. The power amplifier, as the core device of the RF front-end, is responsible for amplifying the transmitted signal to the required power level.

[0003] Currently, there are various power amplifiers from different manufacturers on the market. These power amplifiers are functionally similar, but their pin definitions differ. This difference means that power amplifiers of different brands or models cannot be directly interchanged on the same printed circuit board design. In related technologies, to achieve compatibility of a single board design with multiple power amplifiers, hardware compatibility design is typically used. This involves pre-designing two sets of signal paths on the circuit board and reserving mounting positions for zero-ohm resistors. However, this method requires manual intervention to select and mount different resistors during production or repair, which is costly, error-prone, and cannot achieve automatic identification of device models or dynamic switching of RF paths. Summary of the Invention

[0004] This application provides a signal matching method, apparatus, RF front-end module, and storage medium, aiming to achieve automatic identification of device models and dynamic switching of RF paths, thereby reducing costs and error rates.

[0005] In a first aspect, embodiments of this application provide a signal matching method, comprising: identifying a device to be mounted based on an identification signal to determine the device model of the device to be mounted; and connecting a radio frequency input signal matching the model of the device to be mounted to a target pin of the device to be mounted based on the model of the device to be mounted; wherein the device to be mounted is used to mount in a radio frequency front-end module.

[0006] Optionally, the step of identifying the device to be mounted based on the identification signal and determining the device model of the device to be mounted includes: sending an identification signal to the device to be mounted; acquiring a response signal generated by the identification circuit of the device to be mounted based on the identification signal; comparing the response signal with preset response information, and determining the device model of the device to be mounted based on the comparison result.

[0007] Optionally, sending an identification signal to the device to be mounted includes: sending the identification signal corresponding to a set voltage value to a set pin of the device to be mounted; wherein the set voltage value is the voltage value corresponding to the set pin when the set pin is connected to the interface power supply through a pull-up resistor.

[0008] Optionally, the setting pin includes at least one of the following: undefined pin, idle pin, and extended pin.

[0009] Optionally, the identification circuit includes pull-down resistors with different resistance values; the response signal is a voltage signal with different voltage values ​​generated by the identification circuit in response to the identification signal.

[0010] Optionally, the step of connecting a radio frequency input signal matching the model of the device to be mounted to a target pin of the device to be mounted, based on the model of the device to be mounted, includes: determining a target radio frequency input signal matching the target pin from the radio frequency input signals based on the model of the device to be mounted; turning on the radio frequency path corresponding to the target radio frequency input signal and the target pin in at least one radio frequency switch, so as to connect the target radio frequency input signal to the target pin of the device to be mounted; wherein the radio frequency switch is disposed between the radio frequency input signal and the pin of the device to be mounted.

[0011] Optionally, when the device to be mounted is a Qualcomm power amplifier, the target pin includes a seventh pin and an eighth pin. The target RF input signal corresponding to the seventh pin is a high-frequency band signal, and the target RF input signal corresponding to the eighth pin is an intermediate-frequency band signal. The step of activating the RF path in at least one RF switch corresponding to the target RF input signal and the target pin to connect the target RF input signal to the target pin of the device to be mounted includes: controlling the RF switch to activate the RF path corresponding to the high-frequency band signal and the seventh pin to connect the high-frequency band signal to the seventh pin; and controlling the RF switch to activate the RF path corresponding to the intermediate-frequency band signal and the eighth pin to connect the intermediate-frequency band signal to the eighth pin.

[0012] On the other hand, embodiments of this application also provide a signal matching device, including: an identification module, configured to: identify a device to be mounted based on an identification signal and determine the device model of the device to be mounted; and a matching module, configured to: connect a target radio frequency input signal that matches the model of the device to be mounted to a target pin of the device to be mounted based on the model of the device to be mounted; wherein the device to be mounted is used to mount in a radio frequency front-end module.

[0013] On the other hand, this application embodiment also provides an RF front-end module, including at least one RF switch, a memory, and a processor. The at least one RF switch is used to connect an RF input signal to a pin that matches the device to be mounted. The memory stores a computer program, which, when executed by the processor, implements the signal matching method as described in any of the above embodiments.

[0014] On the other hand, embodiments of this application also provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the signal matching method described in any of the above embodiments.

[0015] This application provides a signal matching method that first identifies the device to be mounted based on an identification signal to determine the device model. Then, based on the device model, a radio frequency (RF) input signal path matching the device model is activated, thereby connecting the RF input signal matching the device model to the target pin of the device. This method enables automatic identification of the device model and dynamic switching of the RF path during the mounting process of the RF front-end module, completely eliminating manual configuration and reducing costs and error rates. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0017] Figure 1 Pin definition diagrams for different models of power amplifiers provided in the embodiments of this application; Figure 2 This is a hardware-compatible design diagram for a power amplifier provided in related technologies; Figure 3 A flowchart illustrating a signal matching method provided in an embodiment of this application; Figure 4 A flowchart of radio frequency signal switching is provided as an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a signal matching device provided in an embodiment of this application; Figure 6 A schematic diagram of another signal matching device provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a radio frequency front-end module provided in an embodiment of this application. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the following description, specific embodiments of this application will be illustrated with reference to steps and symbols performed by one or more computers, unless otherwise stated. Therefore, these steps and operations will be referred to several times as being performed by a computer. Computer performance as referred to in this application includes operations performed by a computer processing unit on electronic signals represented by data in a structured format. This operation transforms the data or maintains it at a location in the computer's memory system, which can be reconfigured or otherwise alter the operation of the computer in a manner well known to those skilled in the art. The data structure maintained by the data is the physical location of the memory, which has specific characteristics defined by the data format. However, the principles of this application are illustrated with specific embodiments and are not intended to be limiting. Those skilled in the art will understand that many of the steps and operations described below can also be implemented in hardware.

[0020] The terms "module" or "unit" as used in this application can be considered as software objects executing on the computing system. The different components, modules, engines, and services described in this application can be considered as implementation objects on the computing system. While the apparatus and methods described in this application are preferably implemented in software, they can also be implemented in hardware, both of which are within the scope of protection of this invention.

[0021] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used in the embodiments of this application may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. It should be understood that when an element is “connected” or “coupled” to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein may include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any unit and all combinations of one or more associated listed items.

[0022] In wireless communication equipment, the radio frequency (RF) front-end module is a critical component, and its performance directly affects the communication quality of the device. The power amplifier, as the core device of the RF front-end, is responsible for amplifying the transmitted signal to the required power level.

[0023] Currently, there are various power amplifiers from different manufacturers on the market. These power amplifiers are functionally similar, but their pin definitions differ. This difference means that power amplifiers from different brands or models cannot be directly interchanged on the same printed circuit board design. Please refer to... Figure 1 , Figure 1 Pin definition diagrams for different models of power amplifiers provided in embodiments of this application. For example... Figure 1 As shown, the power amplifiers in this example include some power amplifiers from Qualcomm: QPA5581 and QPA5590, and some power amplifiers from three third parties: SKY58253-11, MXD9912A, and MXD9912B. Figure 1 It can be seen that different models of power amplifiers have different pin definitions. For example, the pin definitions of pins 7 and 8 of QPA5581 and QPA5590 are different from those of SKY58253-11, MXD9912A and MXD9912B.

[0024] Please see Figure 2 , Figure 2 This document presents a hardware-compatible design diagram for a power amplifier, as described in related technologies. In these technologies, to achieve compatibility of a single-board design with multiple power amplifiers, a hardware-compatible design is typically employed. This involves pre-designing two signal paths on the circuit board and reserving mounting positions for zero-ohm resistors. However, this method is a static configuration. During production or maintenance, manual intervention is required to select and mount different resistors, which is costly, error-prone, and cannot achieve automatic identification of component models or dynamic switching of RF paths. Furthermore, it does not support adaptive optimization based on the characteristics of different power amplifiers during operation.

[0025] Please see Figure 3 , Figure 3 This is a flowchart illustrating a signal matching method provided in an embodiment of this application. Figure 3 As shown, the signal matching method includes steps S110 and S120.

[0026] S110. Identify the device to be mounted based on the identification signal and determine the device model of the device to be mounted.

[0027] In this context, the device to be mounted refers to an electronic component mounted on the RF front-end module circuit board. In this embodiment, the device to be mounted mainly refers to a power amplifier (PA). The PA is a core component in the RF front-end module, used to amplify the RF signal to sufficient power for transmission through the antenna. PAs from different manufacturers differ in pin definitions and internal circuit structures.

[0028] The identification signal is an electrical signal emitted by the control unit to detect the identity of the device to be mounted. This signal is usually a specific voltage signal, injected through a designated pin of the device to be identified, and the device's response signal distinguishes different models of devices.

[0029] The device model number is used to uniquely identify the manufacturer and type of the device to be mounted, such as Qualcomm QPA5581, Skyworks SKY58253-11, etc. A mapping table between device models and response signals can be established to accurately identify the PA model currently being mounted based on the detected response signal.

[0030] In this embodiment of the application, after the RF front-end module system is powered on or receives a reset signal, the control unit sends an identification signal to a specific pin. After receiving the identification signal, the pin will respond to the identification signal and return a response signal value. The device model of the device to be mounted can be obtained by querying the above mapping table using the response signal value.

[0031] S120. Based on the model number of the device to be mounted, connect an RF input signal that matches the model number of the device to be mounted to the target pin of the device to be mounted; wherein the device to be mounted is used to mount in the RF front-end module.

[0032] The radio frequency (RF) input signal refers to the RF signal to be transmitted but not yet amplified. It typically includes signals from different frequency bands, such as high-frequency (HB), mid-frequency (MB), and low-frequency (LB) signals. These signals need to be correctly fed into the corresponding input pins of the power amplifier (PA) in order to be amplified and output.

[0033] The target pins define different pins for different types of PAs, such as pin 7 and pin 8 for Qualcomm PAs and third-party PAs.

[0034] After identifying the model of the device to be mounted, the control unit sends a control signal to the RF input path according to the identified PA model, switching the RF input signal corresponding to the PA model to the physical path that matches the pin definition of the PA, so as to realize the dynamic switching of the RF signal.

[0035] This application provides a signal matching method that first identifies the device to be mounted based on an identification signal to determine the device model. Then, based on the device model, a radio frequency (RF) input signal path matching the device model is activated, thereby connecting the RF input signal matching the device model to the target pin of the device. This method enables automatic identification of the device model and dynamic switching of the RF path during the mounting process of the RF front-end module, completely eliminating manual configuration and reducing costs and error rates.

[0036] In some embodiments, step S110 may specifically include: sending an identification signal to the device to be mounted; obtaining the response signal generated by the identification circuit of the device to be mounted based on the identification signal; comparing the response signal with preset response information, and determining the device model of the device to be mounted based on the comparison result.

[0037] The identification circuit refers to a pre-designed circuit structure inside the device to be mounted, used to identify the device's identity. This circuit can be a fixed-value pull-down resistor, a ground connection, a floating connection, or a more complex resistor divider network. Devices from different manufacturers and of different models are configured with different identification circuits on the same pins. The identification circuit can generate a unique and predictable response value to the identification signal sent by the control unit.

[0038] The preset response information is a pre-stored mapping table between device models and response signals. This mapping table records the theoretical response value or threshold range that each device to be mounted should produce under given identification conditions.

[0039] In this embodiment, the identification signal can be connected to the set pin of the device to be mounted by the control unit. After receiving the identification signal, the identification circuit on the pin will respond to the identification signal and generate a response signal. The response signal can be a digital ID representing the voltage value. By comparing the obtained response signal with the preset response signal, the device model of the device to be mounted can be obtained.

[0040] This application embodiment sends an identification signal to the device to be mounted and responds to the identification signal based on the identification circuit inside the device. By comparing the obtained response signal with a preset response signal, the device model can be automatically identified.

[0041] In some embodiments, sending an identification signal to the device to be mounted includes sending an identification signal corresponding to a set voltage value to a set pin of the device to be mounted; wherein the set voltage value is the voltage value corresponding to the set pin when the set pin is connected to the interface power supply through a pull-up resistor.

[0042] For example, the configuration pin can be an unused pin of the device to be mounted; for example, the configuration pin can be... Figure 1 Pin 31 or Pin 32 in the PA, these pins are defined as RX_TDD in the third-party PA and as GND in the Qualcomm PA.

[0043] When designing the printed circuit board for the RF front-end module, this idle pin is simultaneously connected to the analog-to-digital converter (ADC) sampling pin of the control unit, and then connected to the digital input / output interface (VIO) power supply via a pull-up resistor. The control unit sets the ADC pin to input mode and pulls the resistor up to input a low-power identification signal with a specific voltage value to the idle pin. At this time, the voltage on the idle pin is determined by the circuitry internally connected to the PA (Power Amplifier) ​​to that idle pin.

[0044] The embodiments of this application can achieve the injection of identification signals with only one pull-up resistor, which is simple to implement and has a low implementation cost.

[0045] In some embodiments, the setting pin includes at least one of the following: undefined pin, idle pin, and extended pin.

[0046] Undefined pins are those that are not assigned a specific function. These pins are typically reserved for future expansion or internal testing by the manufacturer and do not participate in any signal transmission or control during normal applications.

[0047] An idle pin refers to a functional pin that is not currently used in a specific application scenario. For example, a pin may be defined in the PA's datasheet, but its function is not enabled in the current product design; in this case, the pin is in an idle state.

[0048] Expansion pins are reserved on a chip to support additional functions or custom configurations. These pins are typically configured through internal registers or external circuitry and can serve a variety of purposes. Their function is to provide a standardized expansion interface, allowing system designers to add custom functionality without violating chip specifications.

[0049] Undefined pins, idle pins, or extended pins do not perform critical tasks during normal operation. Using them for identification will not affect the PA's amplification performance, linearity, efficiency, or other key indicators.

[0050] In some embodiments, the identification circuit includes pull-down resistors with different resistance values; the response signal is a voltage signal with different voltage values ​​generated by the identification circuit in response to the identification signal.

[0051] A pull-down resistor is a resistor connected between a specified pin and ground. This resistor can be integrated within the PA chip. The function of the pull-down resistor is to form a voltage divider circuit with the pull-up resistor when an external pull-up resistor pulls the pin high, resulting in a midpoint voltage at the pin. Different pull-down resistor values ​​will produce different voltage division results.

[0052] For example, if the PA model is Qualcomm, the pin is set to pin31. This pin is internally GND, which is equivalent to direct grounding. The corresponding response signal is 0V or a low level close to 0V.

[0053] If the PA model is three-sided and the pin is designated as pin31, then this pin may be internally connected to a high-impedance state or a specific identification resistor. If the internal pin is floating (high impedance), the corresponding response signal is the VIO voltage. If there is a large internal pull-down resistor, such as 100kΩ, the corresponding response signal is an intermediate voltage value between 0V and VIO.

[0054] As a specific example, using the VIO voltage value as the voltage threshold, if the ADC sampling voltage value is <0.3V, it is determined to be a high-pass type, and the pin is internally grounded.

[0055] If the ADC sampling voltage value is >1.5V, it is determined that the PA model is SKY58253-11. At this time, the pin is either floating or pulled up with high impedance.

[0056] If the ADC sampling voltage value is between 0.8V and 1.2V, it is determined that the PA model is MXD9912A, and there is a specific voltage divider resistor inside the pin.

[0057] The embodiments of this application respond to the identification signal through different pre-installed identification circuits inside the PA. This response method does not require additional components, is simple to implement, and requires no additional cost.

[0058] Please see Figure 4 , Figure 4 A flowchart illustrating radio frequency signal switching is provided for an embodiment of this application. In some embodiments, step S120 may specifically include steps S121 and S122: S121. Based on the model of the device to be mounted, determine the target RF input signal that matches the target pin from the RF input signal.

[0059] S122. Turn on the RF path corresponding to the target RF input signal and the target pin in at least one RF switch so as to connect the target RF input signal to the target pin of the device to be mounted.

[0060] The RF switch is positioned between the RF input signal and the pin of the device to be mounted.

[0061] In this embodiment of the application, taking a PA as the device to be mounted as an example, different models of PAs have different definitions for certain pins. The target pin is the pin that has a different pin definition for different PA models. Due to the differences in pin definitions, after determining the signal of the device to be mounted, it is necessary to determine the target RF input signal corresponding to the target pin from the RF signal.

[0062] An RF switch is an electronic device capable of selectively connecting or disconnecting an RF signal path. In this embodiment, the RF switch is disposed between the RF input signal source and the PA pin, and is used to switch a certain RF input signal to the corresponding target pin according to a control signal, so as to realize dynamic switching of the RF input signal according to the model of the device to be mounted.

[0063] In some embodiments, when the device to be mounted is a high-pass power amplifier, the target pins include a seventh pin and an eighth pin. The target RF input signal corresponding to the seventh pin is a high-frequency band signal, and the target RF input signal corresponding to the eighth pin is a medium-frequency band signal. Turning on the RF path corresponding to the target RF input signal and the target pin in at least one RF switch, so as to connect the target RF input signal to the target pin of the device to be mounted, including: The RF switch is controlled to turn on the high-frequency band signal and the RF path corresponding to the seventh pin, so as to connect the high-frequency band signal to the seventh pin; and the RF switch is controlled to turn on the intermediate frequency band signal and the RF path corresponding to the eighth pin, so as to connect the intermediate frequency band signal to the eighth pin.

[0064] In this embodiment, the specific signals of the Qualcomm power amplifier can be QPA5581 and QPA5590. Through the above embodiment, the high-frequency band signal can be connected to pin 7 of the PA, and the intermediate frequency band signal can be connected to pin 8. If a third-party PA is identified, the opposite operation is performed.

[0065] The technical solution provided in this application embodiment can realize the re-identification of PA model in modular equipment. It is not only applicable to PA, but can also be extended to the automatic identification and system integration of other radio frequency devices such as low noise amplifiers and filter banks.

[0066] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of a signal matching device 500 provided in an embodiment of this application. Figure 5 As shown, the device includes: The identification module 510 is used to: identify the device to be mounted based on the identification signal and determine the device model of the device to be mounted; Matching module 520 is used to: connect a target RF input signal that matches the model of the device to be mounted to the target pin of the device to be mounted, based on the model of the device to be mounted; Among them, the device to be mounted is used to mount in the RF front-end module.

[0067] In some embodiments, the identification module 510 is specifically used for: Send an identification signal to the device to be mounted; The identification circuit for the device to be mounted receives a response signal based on the identification signal. The response signal is compared with the preset response information, and the device model of the device to be mounted is determined based on the comparison result.

[0068] In some embodiments, sending an identification signal to the device to be mounted includes: Send an identification signal corresponding to a set voltage value to the set pin of the device to be mounted; wherein the set voltage value is the voltage value corresponding to the set pin when the set pin is connected to the interface power supply through a pull-up resistor.

[0069] In some embodiments, the setting pin includes at least one of the following: undefined pin, idle pin, and extended pin.

[0070] In some embodiments, the identification circuit includes pull-down resistors with different resistance values; The response signal is a voltage signal with different voltage values ​​generated by the identification circuit in response to the identification signal.

[0071] In some embodiments, the matching module 520 is specifically used for: Based on the model of the device to be mounted, determine the target RF input signal that matches the target pin from the RF input signal; Turn on the RF path corresponding to the target RF input signal and the target pin in at least one RF switch so as to connect the target RF input signal to the target pin of the device to be mounted; The RF switch is positioned between the RF input signal and the pin of the device to be mounted.

[0072] In some embodiments, when the device to be mounted is a high-pass power amplifier, the target pins include a seventh pin and an eighth pin. The target RF input signal corresponding to the seventh pin is a high-frequency band signal, and the target RF input signal corresponding to the eighth pin is a medium-frequency band signal. Turning on the RF path corresponding to the target RF input signal and the target pin in at least one RF switch, so as to connect the target RF input signal to the target pin of the device to be mounted, including: The RF switch is controlled to turn on the high-frequency band signal and the RF path corresponding to the seventh pin, so as to connect the high-frequency band signal to the seventh pin; and the RF switch is controlled to turn on the intermediate frequency band signal and the RF path corresponding to the eighth pin, so as to connect the intermediate frequency band signal to the eighth pin.

[0073] Please see Figure 6 , Figure 6 This is a schematic diagram of another signal matching device provided in an embodiment of this application. (See diagram below.) Figure 6 As shown, the signal matching device includes an identification module 510, a matching module 520, an RF signal input module 530, and an RF signal output module 540.

[0074] The identification module 510 includes an identification signal control unit 511, an identification signal injection unit 512, and an identification result reading unit 513.

[0075] The matching module 520 includes a device to be identified 521 and an RF switch 522. The device to be identified 521 is provided with an identification circuit 5211.

[0076] The identification signal control unit 511 is used to control the sending and receiving of identification signals, the identification signal injection unit 512 is used to inject the identification signal into the identification circuit 5211 in the device to be identified 521, and the identification result reading unit 513 is used to read the response signal returned by the identification circuit 5211 based on the identification signal and compare it with the internally stored mapping table of device model and response signal, so as to accurately determine the model of the device to be mounted.

[0077] The RF switch 522 is located between the RF signal input module 530 and the device to be identified 521. It is used to automatically send the RF signal input by the RF signal input module 530 to the physical path that matches the pin definition of the device to be identified 521 according to the identified device type. The RF signal output module 540 is used to output the RF signal to the device to be identified 521 after signal matching.

[0078] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a radio frequency front-end module provided in an embodiment of this application. Figure 7 The dashed line in the text indicates that the unit or module is optional. Figure 7 The radio frequency front-end module 700 can be used to implement the methods described in the above method embodiments. The radio frequency front-end module 700 can be a chip, terminal device, server, or computer device, etc.

[0079] The radio frequency (RF) front-end module 700 may include one or more processors 710. The processor 710 can support the RF front-end module 700 in implementing the methods described in the preceding method embodiments. The processor 710 can be a general-purpose processor or a special-purpose processor. For example, the processor can be implemented as a central processing unit (CPU). Alternatively, the processor can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0080] The radio frequency front-end module 700 may also include one or more memories 720. The memories 720 store computer programs or instructions. The memories 720 may be independent of the processor 710 or integrated into the processor 710.

[0081] The RF front-end module 700 may also include a transceiver 730. The processor 710 can communicate with other devices or chips through the transceiver 730. For example, the processor 710 can send and receive data with other devices or chips through the transceiver 730.

[0082] The RF front-end module 700 may also include at least one RF switch 740, which is used to connect RF input signals to pins that match the device to be mounted.

[0083] The computer program or instructions in memory 720 can be executed by processor 710, causing processor 710 to perform any of the signal matching methods in the above embodiments.

[0084] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0085] To this end, embodiments of this application also provide a computer-readable storage medium storing a computer program or instructions thereon, which is loaded by a processor to perform the steps described in the above-described method embodiments of this application. For example, the computer program or instructions loaded by the processor can perform the signal matching method of any of the above embodiments.

[0086] In the embodiments of this application, the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), etc.

[0087] It should be noted that, in the data processing stage, the technical solution of this application has strictly limited the scope of data collection to the minimum necessary to achieve the technical objectives, preventing the acquisition of irrelevant information. For any user information to be collected, the data subject will be clearly informed and their consent obtained. Furthermore, technologies such as encrypted storage and access control are employed to strengthen data security and ensure the security and compliance of the entire data processing process. The technical model and decision-making mechanism are based on objective technical parameters and do not introduce unnecessary parameters such as gender or age that may lead to discrimination, resolutely eliminating algorithmic discrimination and upholding public order and good morals. In addition, the specification fully describes the technical implementation methods, application scenarios, and compliance protection details. The claims are consistent with the content of the specification, key compliance designs are clear and verifiable, and the overall technical design is guided by the protection of public interests and adherence to social ethics, without any circumstances that harm public interests or violate public order and good morals.

[0088] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0089] The above provides a detailed description of a signal matching method, apparatus, radio frequency front-end module, and storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A signal matching method, characterized in that, The method includes: The device to be mounted is identified based on the identification signal to determine the device model of the device to be mounted; Based on the model number of the device to be mounted, an RF input signal matching the model number of the device to be mounted is connected to the target pin of the device to be mounted. The device to be mounted is used to mount in the radio frequency front-end module.

2. The method according to claim 1, characterized in that, The step of identifying the device to be mounted based on the identification signal and determining the device model of the device to be mounted includes: Send an identification signal to the device to be mounted; The identification circuit of the device to be mounted receives the response signal generated by the identification signal. The response signal is compared with the preset response information, and the device model of the device to be mounted is determined based on the comparison result.

3. The method according to claim 2, characterized in that, Sending an identification signal to the device to be mounted includes: Send the identification signal corresponding to the set voltage value to the set pin of the device to be mounted; wherein the set voltage value is the voltage value corresponding to the set pin when the set pin is connected to the interface power supply through a pull-up resistor.

4. The method according to claim 3, characterized in that, The setting pin includes at least one of the following: Undefined pin, idle pin, extended pin.

5. The method according to claim 2, characterized in that, The identification circuit includes pull-down resistors with different resistance values; The response signal is a voltage signal with different voltage values ​​generated by the identification circuit in response to the identification signal.

6. The method according to claim 1, characterized in that, The step of connecting an RF input signal matching the model number of the device to be mounted to the target pin of the device to be mounted includes: Based on the model of the device to be mounted, a target RF input signal that matches the target pin is determined from the RF input signal; Turn on the radio frequency path in at least one radio frequency switch that corresponds to the target radio frequency input signal and the target pin, so as to connect the target radio frequency input signal to the target pin of the device to be mounted; The radio frequency switch is located between the radio frequency input signal and the pin of the device to be mounted.

7. The method according to claim 6, characterized in that, When the device to be mounted is a Qualcomm power amplifier, the target pins include a seventh pin and an eighth pin. The target RF input signal corresponding to the seventh pin is a high-frequency band signal, and the target RF input signal corresponding to the eighth pin is a medium-frequency band signal. The step of turning on the RF path corresponding to the target RF input signal and the target pin in at least one RF switch, so as to connect the target RF input signal to the target pin of the device to be mounted, includes: The radio frequency switch is controlled to turn on the high-frequency band signal and the radio frequency path corresponding to the seventh pin, so as to connect the high-frequency band signal to the seventh pin; and The radio frequency switch is controlled to turn on the intermediate frequency band signal and the radio frequency path corresponding to the eighth pin, so as to connect the intermediate frequency band signal to the eighth pin.

8. A signal matching device, characterized in that, include: The identification module is used to: identify the device to be mounted based on the identification signal and determine the device model of the device to be mounted; The matching module is used to: connect an RF input signal that matches the model of the device to be mounted to the target pin of the device to be mounted, based on the model of the device to be mounted. The device to be mounted is used to mount in the radio frequency front-end module.

9. A radio frequency front-end module, characterized in that, It includes at least one radio frequency switch, a memory, and a processor. The at least one radio frequency switch is used to connect a radio frequency input signal to a pin that matches the device to be mounted. The memory stores a computer program that, when executed by the processor, implements the signal matching method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the signal matching method according to any one of claims 1 to 7.

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