CN109274441B - Tuning method and terminal equipment - Google Patents
Tuning method and terminal equipment Download PDFInfo
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- CN109274441B CN109274441B CN201811314071.3A CN201811314071A CN109274441B CN 109274441 B CN109274441 B CN 109274441B CN 201811314071 A CN201811314071 A CN 201811314071A CN 109274441 B CN109274441 B CN 109274441B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
Abstract
The embodiment of the invention provides a tuning method and terminal equipment, which are applied to the technical field of communication and are used for solving the problem of poor flexibility of the performance improvement scheme of the conventional PA and antenna. The method comprises the following steps: determining a current tuning scene; acquiring a target index parameter of a target device of the terminal equipment matched with the tuning scene; and adjusting the target impedance according to the target impedance value corresponding to the target index parameter.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a tuning method and terminal equipment.
Background
With the continuous development of terminal devices, the quality requirement of the terminal devices for the transmitted signals is higher and higher, thereby bringing great challenges to the design of Power Amplifiers (PAs) and antennas in the terminal devices.
In the prior art, the PA is powered by an Average Power Tracking (APT) mode or an Envelope Tracking (ET) mode at the PA end, so that the PA efficiency is improved and the Power consumption of the PA is reduced. Meanwhile, all frequency points of the wide-frequency-band antenna are considered by adopting the tuning antenna, and the performance of the antenna is improved.
Generally, under different tuning scenarios (e.g., a weak received signal scenario, a strong received signal scenario, a high-rate data transmission scenario, etc.), the terminal device has different requirements for improving PA efficiency and antenna performance, for example, when the terminal device is in the strong received signal scenario, the PA does not need too much output power. However, the existing scheme is single, performance of the PA or the antenna under all tuning scenes is improved to the same degree, and flexibility is poor.
Disclosure of Invention
The embodiment of the invention provides a tuning method and terminal equipment, aiming at solving the problem of poor flexibility of the performance improvement scheme of the traditional PA and antenna.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a tuning method, which is applied to a terminal device, and the method includes:
determining a current tuning scene;
acquiring a target index parameter of a target device of the terminal equipment matched with the tuning scene;
and adjusting the target impedance according to the target impedance value corresponding to the target index parameter.
In a second aspect, an embodiment of the present invention further provides a terminal device, including: confirm module, acquisition module and regulation module, wherein:
the determining module is used for determining the current tuning scene;
the obtaining module is configured to obtain a target index parameter of a target device of the terminal device, which is matched with the tuning scene determined by the determining module;
and the adjusting module is used for adjusting the target impedance according to the target impedance value corresponding to the target index parameter acquired by the acquiring module.
In a third aspect, an embodiment of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored on the memory and operable on the processor, and when executed by the processor, the computer program implements the steps of the tuning method according to the first aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the tuning method according to the first aspect.
In the embodiment of the invention, the target index parameter of the target device of the terminal equipment matched with the current tuning scene is obtained, and then the target impedance is adjusted based on the target impedance value corresponding to the target index parameter, so that the terminal equipment can adaptively adjust the target impedance (namely the impedance to be tuned) according to the index parameter required by different tuning scenes, and the optimal performance is provided for the impedance to be tuned under different tuning scenes.
Drawings
Fig. 1 is a schematic structural diagram of an android operating system according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a tuning method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 4 is a second schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that "/" in this context means "or", for example, A/B may mean A or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. "plurality" means two or more than two.
The terms "first," "second," and the like in the description and in the claims of the present invention are used for distinguishing between different objects and not for describing a particular order of the objects. For example, the first threshold, the second threshold, etc. are used to distinguish between different thresholds, rather than to describe a particular order of the thresholds.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the embodiments of the present invention, "of", "corresponding" and "corresponding" may be sometimes used in combination, and it should be noted that the intended meaning is consistent when the difference is not emphasized. The meaning of "a plurality" in the embodiments of the present invention means two or more.
The terminal device in the embodiment of the invention can be a mobile terminal device and can also be a non-mobile terminal device. The mobile terminal device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), etc.; the non-mobile terminal device may be a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like; the embodiments of the present invention are not particularly limited.
The main body of the tuning method provided in the embodiment of the present invention may be the terminal device (including a mobile terminal device and a non-mobile terminal device), a functional module and/or a functional entity capable of implementing the tuning method in the terminal device, or a tuning device, where the tuning device may be a functional module and/or a functional entity capable of implementing the tuning method in the terminal device. The specific method can be determined according to actual use requirements, and the embodiment of the invention is not limited.
The following takes a terminal device as an example to exemplarily explain a tuning method provided by the embodiment of the present invention.
The terminal device in the embodiment of the present invention may be a terminal device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present invention are not limited in particular.
The following describes a software environment to which the tuning method provided by the embodiment of the present invention is applied, by taking an android operating system as an example.
Fig. 1 is a schematic diagram of an architecture of a possible android operating system according to an embodiment of the present invention. In fig. 1, the architecture of the android operating system includes 4 layers, which are respectively: an application layer, an application framework layer, a system runtime layer, and a kernel layer (specifically, a Linux kernel layer).
The application program layer comprises various application programs (including system application programs and third-party application programs) in an android operating system.
The application framework layer is a framework of the application, and a developer can develop some applications based on the application framework layer under the condition of complying with the development principle of the framework of the application.
The system runtime layer includes libraries (also called system libraries) and android operating system runtime environments. The library mainly provides various resources required by the android operating system. The android operating system running environment is used for providing a software environment for the android operating system.
The kernel layer is an operating system layer of an android operating system and belongs to the bottommost layer of an android operating system software layer. The kernel layer provides kernel system services and hardware-related drivers for the android operating system based on the Linux kernel.
Taking an android operating system as an example, in the embodiment of the present invention, a developer may develop a software program for implementing the tuning method provided in the embodiment of the present invention based on the system architecture of the android operating system shown in fig. 1, so that the tuning method may run based on the android operating system shown in fig. 1. That is, the processor or the terminal device may implement the tuning method provided by the embodiment of the present invention by running the software program in the android operating system.
The tuning method according to the embodiment of the present invention is described below with reference to a tuning method flowchart shown in fig. 2, where fig. 2 is a schematic tuning method flowchart provided in the embodiment of the present invention, and includes steps 201 to 203:
step 201: the terminal device determines the current tuning scenario.
In an embodiment of the present invention, the tuning scenario includes any one of the following scenarios or a combination scenario of the following scenarios: a weak received signal scenario (that is, the signal quality of the received signal of the terminal device is less than or equal to a first threshold), a strong received signal scenario (that is, the signal quality of the received signal is greater than or equal to a second threshold), a high-rate data transmission scenario (that is, a scenario in which high-order modulation is required when a plurality of applications in the terminal device need to transmit a large amount of data at present), and the like.
Step 202: and the terminal equipment acquires the target index parameters of the target device of the terminal equipment matched with the tuning scene.
In the embodiment of the present invention, the target devices include, but are not limited to: the present invention relates to a radio frequency circuit, a power amplifier and a low noise amplifier in the radio frequency circuit, and generally, all radio frequency communication circuits use the tuning method provided by the present invention, and the embodiments of the present invention are not limited thereto.
In the embodiment of the present invention, the index parameters of the target device include, but are not limited to: an output power of the target device, an input current of the target device, an Error Vector Magnitude (EVM) value of the target device, and an output voltage of the target device. Further, in the case that the target device is a PA, the index parameters of the PA further include: in the case where the target device is a low noise amplifier, the PA gain index parameters further include: gain of the low noise amplifier.
Step 203: and the terminal equipment adjusts the target impedance according to the target impedance value corresponding to the target index parameter.
Optionally, in the embodiment of the present invention, for the transmitting circuit, in a case that the target device is a radio frequency circuit, correspondingly, the target impedance is an antenna; alternatively, in the case where the target device is a power amplifier in a radio frequency circuit, the target impedance is a load impedance of the power amplifier.
Further optionally, in an embodiment of the present invention, before step 202, the method further includes:
step 202 a: and the terminal equipment carries out load traction (loadpull) on the target device to obtain a first mapping relation.
Wherein, the first mapping relation is: the index parameter of the target device and the impedance value of the target impedance.
In an embodiment of the present invention, the first mapping relationship may be represented by a load pulling curve on a smith chart.
In an example, in a case where the target device is a radio frequency circuit and the target impedance is an antenna impedance, the first mapping relationship is a corresponding relationship between an index parameter of the radio frequency circuit and an impedance value of the antenna impedance. For example, in the embodiment of the present invention, the characteristics of the radio frequency circuit in various environments are measured by performing loadpull on the radio frequency circuit, that is, different index parameters of the radio frequency circuit change with the change of the antenna impedance.
In an example, when the target device is PA and the target impedance is a load impedance of PA, the first mapping relationship is a corresponding relationship between an index parameter of PA and an impedance value of the load impedance of PA.
Based on the above step 202a, before the step 203, the method further includes the following steps:
step 203 a: and the terminal equipment takes the impedance value corresponding to the target index parameter as a target impedance value according to the first mapping relation.
Further optionally, in the embodiment of the present invention, in a tuning scenario where the signal quality of the received signal of the terminal device is less than or equal to the first threshold, if the target device is a radio frequency circuit and the target impedance is an antenna impedance, the target index parameter is a maximum output power of the radio frequency circuit, and if the target device is a power amplifier and the target impedance is a load impedance of the power amplifier, the target index parameter is a maximum gain or a maximum output power of the power amplifier; and/or, under the tuning scene that the signal quality of the received signal of the terminal equipment is greater than or equal to a second threshold, the target index parameter is the minimum input current of the target device; and/or, in the tuning scene of high-order modulation, the target index parameter is the maximum EVM value of the target device.
Optionally, in the embodiment of the present invention, for the receiving circuit, in a case that the target device is a low noise amplifier, correspondingly, the target impedance is a source impedance of the low noise amplifier.
Further optionally, in an embodiment of the present invention, before step 202, the method further includes:
step 202 b: and the terminal equipment carries out source pulling (sourcepull) on the low noise amplifier to obtain a second mapping relation.
The second mapping relationship is a corresponding relationship between the index parameter of the low noise amplifier and the impedance value of the source impedance of the low noise amplifier. Illustratively, the embodiment of the invention measures the characteristics of the low noise amplifier under various environments by conducting sourcepul on the low noise amplifier, namely, different index parameters of the low noise amplifier change along with the change of the source impedance of the low noise amplifier.
In an embodiment of the present invention, the second mapping relationship may be represented by a source pulling curve on a smith chart.
Based on the above step 202b, before the step 203, the method further includes the following steps:
step 203 b: and the terminal equipment takes the impedance value corresponding to the target index parameter as a target impedance value according to the second mapping relation.
Further optionally, in this embodiment of the present invention, in a tuning scenario where the signal quality of the received signal of the terminal device is greater than or equal to the second threshold or the high-order modulation, the target indicator parameter is a predetermined noise coefficient, that is, an optimal noise coefficient, of the low noise amplifier, where intrinsic noise of the low noise amplifier under the predetermined noise coefficient is smaller than a third threshold; and/or, in a tuning scene that the signal quality of the received signal of the terminal equipment is less than or equal to the first threshold value, the target index parameter is the minimum input current of the low noise amplifier.
According to the tuning method provided by the embodiment of the invention, the target index parameter of the target device of the terminal equipment matched with the current tuning scene is obtained, and then the target impedance is adjusted based on the target impedance value corresponding to the target index parameter, so that the terminal equipment can adaptively adjust the target impedance (namely the impedance to be tuned) according to the index parameter required by different tuning scenes, and thus the optimal performance is provided for the impedance to be tuned under different tuning scenes.
For example, the target device is taken as a radio frequency circuit, and the target impedance is taken as an antenna impedance:
example 1: if the terminal device is currently in a weak received signal scene, because the antenna needs to output a large power, the index parameter of the radio frequency circuit matched with the weak received signal scene is the maximum output power of the radio frequency circuit, at this time, the impedance value of the antenna impedance needs to be adjusted to a target impedance value corresponding to the maximum output power, that is, the antenna impedance needs to be tuned to the maximum output power of a load pulling curve of the radio frequency circuit on the smith chart, so that the reliability of communication is ensured.
Example 2: if the terminal device is currently in a strong received signal scenario, and if the terminal device has a low requirement for the communication rate, the index parameter of the radio frequency circuit matched with the strong received signal scenario may be the minimum input current of the radio frequency circuit, and at this time, the impedance value of the antenna impedance needs to be adjusted to the target impedance value corresponding to the minimum input current, that is, the antenna impedance needs to be tuned to the minimum input current (i.e., the minimum power consumption) of the load pulling curve of the radio frequency circuit on the smith chart, so as to achieve the purpose of saving power.
Example 3: if the terminal device is currently in a high-rate data transmission scenario, that is, a large amount of data needs to be transmitted by multiple applications in the terminal device, high-order modulation needs to be used, and at this time, the radio frequency circuit needs to output a signal with higher signal quality, so that the index parameter of the radio frequency circuit matched with the high-rate data transmission scenario may be a maximum EVM value of the radio frequency circuit, that is, an impedance value of the antenna impedance is adjusted to a target impedance value corresponding to the maximum EVM value, that is, the antenna impedance is tuned to a maximum EVM value (that is, an optimal signal quality point) of a load pulling curve of the radio frequency circuit on the smith chart, thereby satisfying high-rate uplink transmission.
Example 4: if the terminal device is currently located in a combination environment formed by combining multiple scenes, current multiple requirements can be weighed (for example, priorities of transmission rate, coverage range, power consumption and the like are weighed), compromise antenna impedance is selected, index parameters corresponding to the multiple requirements can be determined, and antenna impedance is comprehensively adjusted based on target impedance values corresponding to the multiple index parameters.
In the embodiment of the invention, the terminal equipment changes the antenna tuning from the original single impedance matching adjustment to the tuning mode based on the current tuning scene and the loadpull characteristic of the radio frequency circuit, the tuning mode is more flexible, and the matching problem of the radio frequency circuit and the antenna can be better solved, for example, the terminal equipment is more power-saving in a strong received signal scene, has a wider coverage range in a weak received signal scene and has a lower error rate in large data transmission than the original one.
For example, a load impedance with a target device PA and a target impedance PA is taken as an example for explanation:
example 5: if the terminal device is currently in a weak received signal scene, based on using low-order modulation, and requires the terminal device to transmit at the maximum power, the corresponding PA is required to output a larger power, and therefore, the index parameter of the PA matched with the weak received signal scene is the maximum output power or the maximum gain of the PA, at this time, the impedance value of the antenna needs to be adjusted to a target impedance value corresponding to the maximum output power or the maximum gain, that is, the load impedance of the PA is tuned to the maximum output power or the maximum gain of the load pulling curve of the PA on the smith chart, so as to ensure the coverage of communication.
Example 6: if the terminal device is currently in a strong received signal scenario, and the PA does not need too much output power, then the index parameter of the PA matched with the strong received signal scenario may be the minimum input current of the PA, and at this time, the load impedance value of the PA needs to be adjusted to the target impedance value corresponding to the minimum input current, that is, the load impedance of the PA is tuned to the minimum input current (i.e., the minimum power consumption position) of the load pulling curve of the PA on the smith chart, thereby achieving the purpose of saving power.
Example 7: if the terminal device is currently in a high-rate data transmission scenario, that is, a transmitter of the terminal device currently employs high-order modulation, at this time, the PA needs to have the best linearity, that is, a radio frequency signal needs to have a better EVM, so that the index parameter of the PA matched with the high-rate data transmission scenario may be a maximum EVM value of the PA, that is, the PA load impedance value is adjusted to a target impedance value corresponding to the maximum EVM value, that is, the PA load impedance is tuned to a maximum EVM value (that is, an optimal linearity) of a load pulling curve of the PA on the smith chart, thereby ensuring better signal quality.
Example 8: if the terminal device is currently located in a combination environment formed by combining multiple scenes, current multiple requirements can be weighed (for example, priority levels of transmission rate, phase rate, linearity and the like are weighed), compromise PA load impedance is selected, index parameters corresponding to the multiple requirements can be determined, and the PA load impedance is comprehensively adjusted based on target impedance values corresponding to the multiple index parameters.
In the embodiment of the invention, the terminal device adjusts the load impedance of the PA according to the current tuning scene and the loadpull characteristic of the PA, and compared with the existing ET mode power supply mode, the adjusting mode has no complex power supply structure, does not have radio frequency interference caused by ET, and has little requirement on the PA load, for example, low-order modulation is more power-saving than an APT mode, high-order modulation is better in linearity than the APT mode, and has more flexible adaptability than a fixed PA load.
For example, the target device is a low noise amplifier, and the target impedance is a source impedance of the low noise amplifier.
Example 9: if the terminal device is currently in a strong received signal scenario or in a high-rate data transmission scenario, high-order modulation needs to be used, and at this time, the receiving circuit needs to reduce noise as much as possible, then the index parameter of the low-noise amplifier matched with the scenario may be the optimal noise coefficient (i.e., the predetermined noise coefficient in the foregoing) of the low-noise amplifier, so as to ensure better signal quality.
Example 10: if the terminal device is currently in a weak received signal scene, the index parameter of the low noise amplifier matched with the scene can be the minimum input current (namely the minimum power consumption position) of the low noise amplifier, so that the purpose of saving power is achieved.
In the embodiment of the invention, the terminal equipment adjusts the source impedance of the low-noise amplifier according to the current tuning scene and the sourcepull characteristic of the low-noise amplifier, and the adjusting mode has no complex power supply structure and more flexible adaptive capacity.
Fig. 3 is a schematic diagram of a possible structure of a terminal device according to an embodiment of the present invention, where the terminal device includes a target device (not shown in the figure), and as shown in fig. 3, the terminal device 300 includes a determining module 301, an obtaining module 302, and an adjusting module 303, where:
a determining module 301, configured to determine a current tuning scenario.
An obtaining module 302, configured to obtain a target index parameter of a target device of the terminal device that matches the tuning scene determined by the determining module 301.
The adjusting module 303 is configured to adjust the target impedance according to the target impedance value corresponding to the target index parameter obtained by the obtaining module 302.
Optionally, the obtaining module 302 is further configured to perform load traction on the target device to obtain a first mapping relationship; the first mapping relation is a corresponding relation between an index parameter of the target device and an impedance value of the target impedance; and taking the impedance value corresponding to the target index parameter as a target impedance value according to the first mapping relation.
Optionally, the target device is a radio frequency circuit, and the target impedance is an antenna impedance; alternatively, the target device is a power amplifier in a radio frequency circuit, and the target impedance is a load impedance of the power amplifier.
Optionally, in a tuning scenario where the signal quality of the received signal of the terminal device is less than or equal to the first threshold, if the target device is a radio frequency circuit and the target impedance is an antenna impedance, the target index parameter is a maximum output power of the radio frequency circuit, and if the target device is a power amplifier and the target impedance is a load impedance of the power amplifier, the target index parameter is a maximum gain or a maximum output power of the power amplifier; and/or, under the tuning scene that the signal quality of the received signal is greater than or equal to the second threshold, the target index parameter is the minimum input current of the target device; and/or, under the tuning scene of high-order modulation, the target index parameter is the maximum vector amplitude error EVM value of the target device.
Optionally, the target device is a low noise amplifier, and the target impedance is a source impedance of the low noise amplifier; the obtaining module 302 is further configured to perform source pulling on the low noise amplifier to obtain a second mapping relationship; wherein, the second mapping relation is the corresponding relation between the index parameter of the low noise amplifier and the impedance value of the source impedance of the low noise amplifier; and taking the impedance value corresponding to the target index parameter as a target impedance value according to the second mapping relation.
Optionally, in a tuning scenario where the signal quality of the received signal of the terminal device is greater than or equal to a second threshold or high-order modulation, the target indicator parameter is a predetermined noise coefficient of the low noise amplifier; wherein the intrinsic noise of the low noise amplifier under the predetermined noise coefficient is less than or equal to a third threshold; and/or, in a tuning scenario where the signal quality of the received signal is less than or equal to the first threshold, the target indicator parameter is a minimum input current of the low noise amplifier.
According to the terminal device provided by the embodiment of the invention, the target index parameter of the target device of the terminal device matched with the current tuning scene is obtained, and then the target impedance is adjusted based on the target impedance value corresponding to the target index parameter, so that the terminal device can adaptively adjust the target impedance (namely the impedance to be tuned) according to the index parameter required by different tuning scenes, and thus the optimal performance is provided for the impedance to be tuned under different tuning scenes.
The terminal device provided by the embodiment of the present invention can implement each process implemented by the terminal device in the above method embodiments, and is not described here again to avoid repetition.
Fig. 4 is a schematic diagram of a hardware structure of a terminal device for implementing various embodiments of the present invention, where the terminal device 100 includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the configuration of the terminal device 100 shown in fig. 4 does not constitute a limitation of the terminal device, and that the terminal device 100 may include more or less components than those shown, or combine some components, or arrange different components. In the embodiment of the present invention, the terminal device 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, a pedometer, and the like.
The processor 110 is configured to determine a current tuning scene, obtain a target index parameter of a target device of the terminal device matched with the tuning scene, and adjust the target impedance according to a target impedance value corresponding to the target index parameter.
According to the terminal device provided by the embodiment of the invention, the target index parameter of the target device of the terminal device matched with the current tuning scene is obtained, and then the target impedance is adjusted based on the target impedance value corresponding to the target index parameter, so that the terminal device can adaptively adjust the target impedance (namely the impedance to be tuned) according to the index parameter required by different tuning scenes, and thus the optimal performance is provided for the impedance to be tuned under different tuning scenes.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
The terminal device 100 provides the user with wireless broadband internet access via the network module 102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal device 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.
The terminal device 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the terminal device 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device 100. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 4, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal device 100, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the terminal device 100, and is not limited herein.
The interface unit 108 is an interface for connecting an external device to the terminal apparatus 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 100 or may be used to transmit data between the terminal apparatus 100 and the external device.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the terminal device 100, connects various parts of the entire terminal device 100 by various interfaces and lines, and performs various functions of the terminal device 100 and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the terminal device 100. Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The terminal device 100 may further include a power supply 111 (such as a battery) for supplying power to each component, and optionally, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal device 100 includes some functional modules that are not shown, and are not described in detail here.
Optionally, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor 110, where the computer program, when executed by the processor, implements each process of the tuning method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the tuning method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A tuning method is applied to a terminal device, and comprises the following steps:
determining a current tuning scene;
acquiring a target index parameter of a target device of the terminal equipment matched with the tuning scene;
adjusting the target impedance according to the target impedance value corresponding to the target index parameter;
in a tuning scene of a weak received signal of which the signal quality of a received signal of the terminal device is less than or equal to a first threshold, if the target device is a radio frequency circuit and the target impedance is an antenna impedance, the target index parameter is the maximum output power of the radio frequency circuit, and if the target device is a power amplifier in the radio frequency circuit and the target impedance is a load impedance of the power amplifier, the target index parameter is the maximum gain or the maximum output power of the power amplifier;
under a strong received signal tuning scenario in which the signal quality of the received signal is greater than or equal to a second threshold, the target index parameter is a minimum input current of the target device;
and under the tuning scene of high-order modulation, the target index parameter is the maximum vector amplitude error EVM value of the target device.
2. The method according to claim 1, wherein before adjusting the target impedance according to the target impedance value corresponding to the target index parameter, the method further comprises:
carrying out load traction on the target device to obtain a first mapping relation; the first mapping relation is a corresponding relation between index parameters of the target device and impedance values of the target impedance;
and taking the impedance value corresponding to the target index parameter as the target impedance value according to the first mapping relation.
3. The method of claim 1, wherein if the target device is a low noise amplifier, the target impedance is a source impedance of the low noise amplifier;
before adjusting the target impedance according to the target impedance value corresponding to the target index parameter, the method further includes:
carrying out source traction on the low-noise amplifier to obtain a second mapping relation; wherein the second mapping relationship is a corresponding relationship between an index parameter of the low noise amplifier and an impedance value of a source impedance of the low noise amplifier;
and taking the impedance value corresponding to the target index parameter as the target impedance value according to the second mapping relation.
4. The method according to claim 3, wherein the target indicator parameter is a predetermined noise figure of the low noise amplifier in a tuning scenario in which the signal quality of the received signal of the terminal device is greater than or equal to a second threshold or a higher order modulation; wherein the intrinsic noise of the low noise amplifier at the predetermined noise figure is less than or equal to a third threshold;
and/or, in a tuning scenario where the signal quality of the received signal is less than or equal to a first threshold, the target indicator parameter is a minimum input current of the low noise amplifier.
5. A terminal device, comprising: confirm module, acquisition module and regulation module, wherein:
the determining module is used for determining the current tuning scene;
the obtaining module is configured to obtain a target index parameter of a target device of the terminal device, which is matched with the tuning scene determined by the determining module;
the adjusting module is used for adjusting the target impedance according to the target impedance value corresponding to the target index parameter acquired by the acquiring module;
in a tuning scene of a weak received signal of which the signal quality of a received signal of the terminal device is less than or equal to a first threshold, if the target device is a radio frequency circuit and the target impedance is an antenna impedance, the target index parameter is the maximum output power of the radio frequency circuit, and if the target device is a power amplifier in the radio frequency circuit and the target impedance is a load impedance of the power amplifier, the target index parameter is the maximum gain or the maximum output power of the power amplifier;
under a strong received signal tuning scenario in which the signal quality of the received signal is greater than or equal to a second threshold, the target index parameter is a minimum input current of the target device;
and under the tuning scene of high-order modulation, the target index parameter is the maximum vector amplitude error EVM value of the target device.
6. The terminal device according to claim 5, wherein the obtaining module is further configured to perform load pulling on the target device to obtain a first mapping relationship; the first mapping relation is a corresponding relation between index parameters of the target device and impedance values of the target impedance; and taking the impedance value corresponding to the target index parameter as the target impedance value according to the first mapping relation.
7. The terminal device of claim 5, wherein if the target device is a low noise amplifier, the target impedance is a source impedance of the low noise amplifier;
the acquisition module is further configured to perform source pulling on the low noise amplifier to obtain a second mapping relationship; wherein the second mapping relationship is a corresponding relationship between an index parameter of the low noise amplifier and an impedance value of a source impedance of the low noise amplifier; and taking the impedance value corresponding to the target index parameter as the target impedance value according to the second mapping relation.
8. The terminal device according to claim 7, wherein the target indicator parameter is a predetermined noise figure of the low noise amplifier in a tuning scenario where the signal quality of the received signal of the terminal device is greater than or equal to a second threshold or a higher order modulation; wherein the intrinsic noise of the low noise amplifier at the predetermined noise figure is less than or equal to a third threshold;
and/or, in a tuning scenario where the signal quality of the received signal is less than or equal to a first threshold, the target indicator parameter is a minimum input current of the low noise amplifier.
9. Terminal device, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the tuning method according to any one of claims 1 to 4.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the tuning method as claimed in any one of the claims 1 to 4.
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| CN109922468A (en) * | 2019-01-31 | 2019-06-21 | 维沃移动通信有限公司 | A kind of communication means and terminal device |
| CN111343710B (en) * | 2020-02-26 | 2023-04-25 | 维沃移动通信有限公司 | Power adjustment method and electronic equipment |
| CN111969966A (en) * | 2020-07-10 | 2020-11-20 | 普联技术有限公司 | Impedance adjusting method and device and terminal equipment |
| CN113922830B (en) * | 2021-09-30 | 2023-05-05 | 深圳市锐尔觅移动通信有限公司 | Impedance adjustment method, radio frequency circuit, communication device and computer device |
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