CN116345147B

CN116345147B - Antenna tuning method and terminal equipment

Info

Publication number: CN116345147B
Application number: CN202310164273.9A
Authority: CN
Inventors: 肖驰洋; 师江伟
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-11-21
Anticipated expiration: 2043-02-16
Also published as: CN116345147A

Abstract

The embodiment of the application provides an antenna tuning method and terminal equipment, which are applied to the technical field of terminals, wherein the antenna tuning method comprises the following steps: determining the working states of a plurality of radio frequency subsystems; determining target antenna tuning information based on the working states of the plurality of radio frequency subsystems and a first corresponding relation, wherein the first corresponding relation comprises a corresponding relation between the plurality of working states and the plurality of antenna tuning information; and adjusting antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information. The embodiment of the application can simultaneously adjust the antenna tuning switches in a plurality of radio frequency subsystems in any working state, thereby improving the antenna isolation of the radio frequency subsystems and balancing the antenna efficiency of different radio frequency subsystems.

Description

Antenna tuning method and terminal equipment

Technical Field

The present application relates to the field of terminal technologies, and in particular, to an antenna tuning method and a terminal device.

Background

As the number of the built-in antennas increases gradually along with the increase of the communication modes supported by the terminal equipment, and the size of the terminal equipment is limited, the comprehensive screen, the multiple cameras, the large battery, the large-area fingerprint identification module and the like occupy the available space inside the terminal, so that the space of the antenna inside the terminal equipment is smaller and smaller, the adjacent built-in antennas are easy to couple with each other due to parasitic effect, and the isolation degree between the built-in antennas is very challenging.

Modern terminal devices can generally adjust the resonant frequency of the antenna in the non-operating state so that the isolation of the antenna in the non-operating state and the isolation of the antenna in the operating state meet the preset isolation, thereby avoiding the influence of the antenna in the non-operating state on the antenna in the operating state. For example, for multiple-input multiple-output (multiple input single output, MIMO) antennas in cellular subsystems, the resonant frequency of the antenna is typically adjusted out of the coverage of the main antenna when it is determined that the diversity antenna is not operating, to reduce the effect of the signal on the diversity antenna on the main antenna, thereby improving the isolation between the built-in antennas and the performance of the main antenna.

However, in the above scheme, only a single rf subsystem is considered, and when the antenna state remains on the corresponding antenna of the other rf subsystem, the isolation degree is poor due to the close resonance frequency between the antennas of the rf subsystems, so that the antenna efficiency is poor.

Disclosure of Invention

The application provides an antenna tuning method and terminal equipment, which can simultaneously adjust antenna tuning switches in a plurality of radio frequency subsystems in any working state, thereby improving the antenna isolation of the radio frequency subsystems and balancing the antenna efficiency of different radio frequency subsystems.

In a first aspect, an embodiment of the present application provides an antenna tuning method, which may include: determining the working states of a plurality of radio frequency subsystems; determining target antenna tuning information based on the working states of the plurality of radio frequency subsystems and a first corresponding relation, wherein the first corresponding relation comprises a corresponding relation between the plurality of working states and the plurality of antenna tuning information; and adjusting antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information.

Therefore, the antenna tuning method can not only adjust the antenna tuning switch in a single radio frequency subsystem, can perform joint tuning optimization aiming at the concurrent radio frequency subsystems under the condition that the radio frequency subsystems coexist, and can balance and compromise the antenna efficiency of different radio frequency subsystems and increase the applicability of the antenna tuning method; meanwhile, for the non-concurrent radio frequency subsystem, according to the working frequency band of the current working radio frequency subsystem, the state of an antenna switch hung on an antenna of the non-working radio frequency subsystem is adjusted, so that the antenna isolation of the non-concurrent radio frequency subsystem is improved, and the antenna efficiency is further improved.

In a first possible implementation manner, the first correspondence includes a correspondence between a plurality of operating states and a plurality of antenna tuning information.

In a second possible implementation manner, the first correspondence includes a correspondence between a plurality of antenna state identifiers and a plurality of antenna tuning information.

Compared with the first possible implementation manner, the method and the device for looking up the antenna state identification in the second possible implementation manner are used for looking up the table, so that the amount of input data to be searched can be reduced, the table looking-up efficiency of the terminal device is improved, and the antenna tuning efficiency of the terminal device is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, the antenna tuning method may further include: and determining the quality of a first wireless channel of the radio frequency subsystem in an operating state in the plurality of radio frequency subsystems. The determining the tuning information of the target antenna based on the working states of the radio frequency subsystems and the first corresponding relation includes: determining a target second corresponding relation from a plurality of second corresponding relations based on the working states of the plurality of radio frequency subsystems and the first corresponding relation, wherein the plurality of second corresponding relations respectively comprise corresponding relations between a plurality of gears and a plurality of antenna tuning information, wherein the corresponding relations are determined based on the quality of first wireless channels of different radio frequency subsystems; and determining target antenna tuning information based on the first wireless channel quality of the radio frequency subsystem in the working state and the target second corresponding relation.

In this way, by increasing the quality of the wireless channel as one of the influencing factors for determining the tuning information of the target antenna, the tuning information of the antenna can be divided more finely, and the terminal equipment can adjust the tuning switches of the antenna in a plurality of radio frequency subsystems more accurately.

With reference to the first aspect, in certain implementation manners of the first aspect, when the number of radio frequency subsystems in the working state is greater than or equal to 2, the plurality of gear positions are determined based on a difference between first wireless channel qualities of the plurality of radio frequency subsystems in the working state.

Therefore, the antenna tuning information is divided according to the relative difference of the wireless channel quality among the plurality of radio frequency subsystems, and the antenna tuning switch states of different radio frequency subsystems can be better distinguished, so that comparison is convenient.

In one possible implementation manner, when the number of the radio frequency subsystems in the working state is greater than or equal to 2, the terminal device may perform a difference between the first wireless channel qualities of the radio frequency subsystems in the working state, and compare the absolute value of the difference with a preset difference threshold. The preset difference threshold comprises a first preset difference threshold and a second preset difference threshold, and the first preset difference threshold is larger than the second preset difference threshold. If the absolute value of the difference is greater than or equal to the first preset difference threshold, one of the first wireless channel qualities of the two radio frequency subsystems in the working state corresponding to the difference is far greater than or far less than the other; if the absolute value of the difference is smaller than the first preset difference threshold value but larger than or equal to the second preset difference threshold value, one of the first wireless channel qualities of the two radio frequency subsystems in the working state corresponding to the difference is larger than or smaller than the other; if the absolute value of the difference is smaller than the second preset difference threshold (the second preset difference threshold is usually set to a value close to 0, then it can be understood that the difference is close to 0), then one of the first wireless channel qualities of the two active multiple radio frequency subsystems corresponding to the difference is close to the other.

With reference to the first aspect, in certain implementation manners of the first aspect, the plurality of gear positions are determined based on a first wireless channel quality of the radio frequency subsystem in an operating state and a first preset threshold.

Therefore, the antenna tuning information is divided according to the absolute difference of the wireless channel quality among the radio frequency subsystems, and the antenna tuning switch states of the same radio frequency subsystem under different periods can be better distinguished, so that comparison is convenient.

It should be understood that the plurality of gear steps may be determined based on a comparison result of the first wireless channel quality of the radio frequency subsystem in operation and the first preset threshold value, or may be determined based on a comparison result of an absolute value of a difference between the first wireless channel quality of the radio frequency subsystem in operation and the first preset threshold value and the magnitude of the preset comparison threshold value, which is not limited in the embodiment of the present application.

It should be further understood that the first preset threshold and/or the preset comparison threshold may include one threshold, i.e. the threshold is shared by different radio frequency subsystems, or the first preset threshold and/or the preset comparison threshold may include multiple thresholds, i.e. different thresholds are set for different radio frequency subsystems, which is not limited in this embodiment of the present application.

Optionally, the first preset threshold and/or the preset comparison threshold may be obtained through experiments in a laboratory or a factory, and when different thresholds are set for different radio frequency subsystems, for radio frequency subsystems with radio channel quality greater than the corresponding threshold, it may be ensured that after tuning, the radio channel quality is not less than the corresponding threshold; for radio frequency subsystems whose radio channel quality is less than its corresponding threshold, the radio channel quality after tuning can be maximized as much as possible. Therefore, the quality of the radio channel after tuning of the radio frequency subsystem in the working state can be kept under the condition that the quality of the radio channel is improved or leveled compared with that of the radio channel before tuning, the antenna tuning switches of the radio frequency subsystems can be guaranteed to be adjusted in a meaningful mode, the effectiveness of an antenna tuning method is further guaranteed, and the tuning efficiency is improved.

With reference to the first aspect, in some implementations of the first aspect, after adjusting the antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information, the terminal device provided with the plurality of radio frequency subsystems may acquire a second wireless channel quality of the radio frequency subsystem in an adjusted working state, and if a value obtained by subtracting the second wireless channel quality from the first wireless channel quality is greater than or equal to a second preset threshold, return the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

Therefore, the quality of the radio channel after tuning of the radio frequency subsystem in the working state can be always kept under the condition that the quality of the radio channel is improved or leveled compared with that of the radio channel before tuning, the antenna tuning switches of the radio frequency subsystems can be guaranteed to be adjusted in a meaningful mode, the effectiveness of an antenna tuning method is further guaranteed, and the tuning efficiency is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, the antenna tuning method may further include: and after the preset time period, readjusting the antenna tuning switches of the plurality of radio frequency subsystems.

Therefore, when the terminal equipment enters an enclosed space such as an elevator and the like to obviously reduce the quality of a wireless channel, the antenna tuning switch can be prevented from being adjusted, so that meaningless tuning is reduced, and the tuning efficiency is improved.

With reference to the first aspect, in certain implementation manners of the first aspect, the antenna tuning information is represented by a vector, a length of the vector is greater than or equal to a number of tunable antenna tuning switches in the plurality of radio frequency subsystems, and each component in the vector represents a state of each antenna tuning switch.

Therefore, the vector representation antenna tuning information is used for replacing text representation antenna tuning information, the data size of the antenna tuning information can be effectively reduced, the antenna tuning information can be conveniently searched, the reading efficiency of the antenna tuning information is improved, and the tuning efficiency is further improved.

With reference to the first aspect, in certain implementation manners of the first aspect, the plurality of radio frequency subsystems may include: a cellular subsystem, a short-range communications subsystem, and a satellite navigation subsystem.

In one possible implementation, the short-range communication subsystem may include a wireless communication subsystem and/or a bluetooth communication subsystem.

Therefore, the plurality of radio frequency subsystems comprise the radio frequency subsystems which are commonly used at present, so that the tuning of the terminal equipment to the radio frequency subsystems is more comprehensive, the current tuning requirements are met, and the modernization of the tuning method is realized.

With reference to the first aspect, in certain implementation manners of the first aspect, the antenna tuning method may further include: and determining the working frequency range of the cellular subsystem. The determining the tuning information of the target antenna based on the working states of the radio frequency subsystems and the first corresponding relation includes: and determining target antenna tuning information based on the operating frequency band of the cellular subsystem, the operating states of the plurality of radio frequency subsystems and the first corresponding relation.

Therefore, by increasing the working frequency band of the cellular subsystem as one of the influencing factors for determining the target antenna tuning information, the antenna tuning information can be finely divided, and the terminal equipment can more accurately adjust the antenna tuning switches in a plurality of radio frequency subsystems.

In a second aspect, an embodiment of the present application provides a terminal device, configured to perform a method in any one of the possible implementation manners of the first aspect. In particular, the terminal device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect.

In a third aspect, an embodiment of the present application provides another terminal device, including: a processor coupled to the memory, the memory for storing a computer program which, when invoked by the processor, causes the terminal device to perform the antenna tuning method described in the first aspect or any one of the possible implementations of the first aspect.

In a fourth aspect, there is provided a processor comprising: input circuit, output circuit and processing circuit. The processing circuitry is to receive signals via the input circuitry and to transmit signals via the output circuitry such that the processor performs the method of the first aspect or any one of the possible implementations of the first aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the output signal may be output by, for example and without limitation, a transmitter and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit, which functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the application does not limit the specific implementation modes of the processor and various circuits.

In a fifth aspect, embodiments of the present application provide a computer readable storage medium for storing a computer program comprising instructions for implementing the antenna tuning method of the first aspect or any one of the possible implementations of the first aspect.

In a sixth aspect, embodiments of the present application provide a computer program product comprising computer program code for causing a computer to implement the antenna tuning method of the first aspect or any one of the possible implementations of the first aspect when the computer program code is run on the computer.

Drawings

Fig. 1 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 2 is a schematic software structure of a terminal device according to an embodiment of the present application;

fig. 3 is a schematic diagram of an aperture tuning architecture of a terminal device according to an embodiment of the present application;

fig. 4 is a schematic diagram of a built-in antenna architecture of a mobile phone, to which the embodiment of the application is applicable;

fig. 5 is a schematic flow chart of an antenna tuning method according to an embodiment of the present application;

fig. 6 is a schematic diagram of an antenna tuning architecture according to an embodiment of the present application;

fig. 7 is a schematic diagram of a module interaction flow involved in an antenna tuning method according to an embodiment of the present application;

Fig. 8 is a schematic diagram of a module interaction flow related to another antenna tuning method according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application;

fig. 10 is a schematic block diagram of another terminal device provided in an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

In order to clearly describe the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

In order to better understand the embodiments of the present application, a description is given below of terminal devices related to the embodiments of the present application.

Fig. 1 shows a schematic structure of a terminal device 100.

The terminal device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, keys 190, a motor 191, an indicator 192, a camera 193, a display 194, and a subscriber identity module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

It is to be understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the terminal device 100. In other embodiments of the application, terminal device 100 may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Repeated accesses are avoided and the latency of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, the processor 110 may include one or more interfaces. The interfaces may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others.

The I2C interface is a bi-directional synchronous serial bus comprising a serial data line (SDA) and a serial clock line (derail clock line, SCL). In some embodiments, the processor 110 may contain multiple sets of I2C buses. The processor 110 may be coupled to the touch sensor 180K, charger, flash, camera 193, etc., respectively, through different I2C bus interfaces. For example: the processor 110 may be coupled to the touch sensor 180K through an I2C interface, so that the processor 110 and the touch sensor 180K communicate through an I2C bus interface to implement a touch function of the terminal device 100.

The I2S interface may be used for audio communication. In some embodiments, the processor 110 may contain multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 via an I2S bus to enable communication between the processor 110 and the audio module 170. In some embodiments, the audio module 170 may transmit an audio signal to the wireless communication module 160 through the I2S interface, to implement a function of answering a call through the bluetooth headset.

PCM interfaces may also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 may also transmit audio signals to the wireless communication module 160 through the PCM interface to implement a function of answering a call through the bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication.

The UART interface is a universal serial data bus for asynchronous communications. The bus may be a bi-directional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is typically used to connect the processor 110 with the wireless communication module 160. For example: the processor 110 communicates with a bluetooth module in the wireless communication module 160 through a UART interface to implement a bluetooth function. In some embodiments, the audio module 170 may transmit an audio signal to the wireless communication module 160 through a UART interface, to implement a function of playing music through a bluetooth headset.

The MIPI interface may be used to connect the processor 110 to peripheral devices such as a display 194, a camera 193, and the like. The MIPI interfaces include camera serial interfaces (camera serial interface, CSI), display serial interfaces (display serial interface, DSI), and the like. In some embodiments, processor 110 and camera 193 communicate through a CSI interface to implement the photographing function of terminal device 100. The processor 110 and the display 194 communicate via a DSI interface to implement the display function of the terminal device 100.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal or as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 110 with the camera 193, the display 194, the wireless communication module 160, the audio module 170, the sensor module 180, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, an MIPI interface, etc.

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the terminal device 100, or may be used to transfer data between the terminal device 100 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset. The interface may also be used to connect other terminal devices, such as AR devices, etc.

It should be understood that the interfacing relationship between the modules illustrated in the embodiment of the present application is only illustrative, and does not constitute a structural limitation of the terminal device 100. In other embodiments of the present application, the terminal device 100 may also use different interfacing manners, or a combination of multiple interfacing manners in the foregoing embodiments.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 140 may receive a charging input of a wired charger through the USB interface 130. In some wireless charging embodiments, the charge management module 140 may receive wireless charging input through a wireless charging coil of the terminal device 100. The charging management module 140 may also supply power to the terminal device through the power management module 141 while charging the battery 142.

The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 to power the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters. In other embodiments, the power management module 141 may also be provided in the processor 110. In other embodiments, the power management module 141 and the charge management module 140 may be disposed in the same device.

The wireless communication function of the terminal device 100 can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the terminal device 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the terminal device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 150 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional module, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., applied to the terminal device 100. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 150 of terminal device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that terminal device 100 may communicate with a network and other devices via wireless communication techniques. The wireless communication techniques may include the Global System for Mobile communications (global system for mobile communications, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).

The terminal device 100 implements display functions through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (flex), a mini, a Micro led, a Micro-OLED, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the terminal device 100 may include 1 or N display screens 194, N being a positive integer greater than 1.

The terminal device 100 may implement a photographing function through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like.

The ISP is used to process data fed back by the camera 193. For example, when photographing, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electric signal, and the camera photosensitive element transmits the electric signal to the ISP for processing and is converted into an image visible to naked eyes. ISP can also optimize the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in the camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image onto the photosensitive element. The photosensitive element may be a charge coupled device (charge coupled device, CCD) or a Complementary Metal Oxide Semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, which is then transferred to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV, or the like format. In some embodiments, the terminal device 100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the terminal device 100 selects a frequency bin, the digital signal processor is used to fourier transform the frequency bin energy, or the like.

Video codecs are used to compress or decompress digital video. The terminal device 100 may support one or more video codecs. In this way, the terminal device 100 can play or record video in various encoding formats, for example: dynamic picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent awareness of the terminal device 100 may be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to realize expansion of the memory capability of the terminal device 100. The external memory card communicates with the processor 110 through an external memory interface 120 to implement data storage functions. For example, files such as music, video, etc. are stored in an external memory card.

The internal memory 121 may be used to store computer executable program code including instructions. The internal memory 121 may include a storage program area and a storage data area. The storage program area may store an application program (such as a sound playing function, an image playing function, etc.) required for at least one function of the operating system, etc. The storage data area may store data (such as audio data, phonebook, etc.) created during use of the terminal device 100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (universal flash storage, UFS), and the like. The processor 110 performs various functional applications of the terminal device 100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The terminal device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or a portion of the functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also referred to as a "horn," is used to convert audio electrical signals into sound signals. The terminal device 100 can listen to music or to handsfree talk through the speaker 170A.

A receiver 170B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When the terminal device 100 receives a call or voice message, it is possible to receive voice by approaching the receiver 170B to the human ear.

Microphone 170C, also referred to as a "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 170C through the mouth, inputting a sound signal to the microphone 170C. The terminal device 100 may be provided with at least one microphone 170C. In other embodiments, the terminal device 100 may be provided with two microphones 170C, and may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the terminal device 100 may be further provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify the source of sound, implement directional recording functions, etc.

The earphone interface 170D is used to connect a wired earphone. The earphone interface 170D may be a USB interface 130 or a 3.5mm open mobile terminal platform (open mobile terminal platform, OMTP) standard interface, a american cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 180A is used to sense a pressure signal, and may convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A is of various types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. The capacitance between the electrodes changes when a force is applied to the pressure sensor 180A. The terminal device 100 determines the intensity of the pressure according to the change of the capacitance. When a touch operation is applied to the display 194, the terminal device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The terminal device 100 may also calculate the position of the touch from the detection signal of the pressure sensor 180A. In some embodiments, touch operations that act on the same touch location, but at different touch operation strengths, may correspond to different operation instructions. For example: and executing an instruction for checking the short message when the touch operation with the touch operation intensity smaller than the first pressure threshold acts on the short message application icon. And executing an instruction for newly creating the short message when the touch operation with the touch operation intensity being greater than or equal to the first pressure threshold acts on the short message application icon.

The gyro sensor 180B may be used to determine a motion gesture of the terminal device 100. In some embodiments, the angular velocity of the terminal device 100 about three axes (i.e., x, y, and z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. Illustratively, when the shutter is pressed, the gyro sensor 180B detects the angle of shake of the terminal apparatus 100, calculates the distance to be compensated for by the lens module according to the angle, and allows the lens to counteract the shake of the terminal apparatus 100 by the reverse movement, thereby realizing anti-shake. The gyro sensor 180B may also be used for navigating, somatosensory game scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the terminal device 100 calculates altitude from barometric pressure values measured by the barometric pressure sensor 180C, aiding in positioning and navigation.

The magnetic sensor 180D includes a hall sensor. The terminal device 100 can detect the opening and closing of the flip cover using the magnetic sensor 180D. In some embodiments, when the terminal device 100 is a folder, the terminal device 100 may detect opening and closing of the folder according to the magnetic sensor 180D. And then according to the detected opening and closing state of the leather sheath or the opening and closing state of the flip, the characteristics of automatic unlocking of the flip and the like are set.

The acceleration sensor 180E can detect the magnitude of acceleration of the terminal device 100 in various directions (typically three axes). The magnitude and direction of gravity may be detected when the terminal device 100 is stationary. The method can also be used for identifying the gesture of the terminal equipment, and is applied to the applications such as horizontal and vertical screen switching, pedometers and the like.

A distance sensor 180F for measuring a distance. The terminal device 100 may measure the distance by infrared or laser. In some embodiments, the terminal device 100 may range using the distance sensor 180F to achieve fast focusing.

The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The terminal device 100 emits infrared light outward through the light emitting diode. The terminal device 100 detects infrared reflected light from a nearby object using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object in the vicinity of the terminal device 100. When insufficient reflected light is detected, the terminal device 100 may determine that there is no object in the vicinity of the terminal device 100. The terminal device 100 can detect that the user holds the terminal device 100 close to the ear to talk by using the proximity light sensor 180G, so as to automatically extinguish the screen for the purpose of saving power. The proximity light sensor 180G may also be used in holster mode, pocket mode to automatically unlock and lock the screen.

The ambient light sensor 180L is used to sense ambient light level. The terminal device 100 may adaptively adjust the brightness of the display 194 based on the perceived ambient light level. The ambient light sensor 180L may also be used to automatically adjust white balance when taking a photograph. The ambient light sensor 180L may also cooperate with the proximity light sensor 180G to detect whether the terminal device 100 is in a pocket to prevent false touches.

The fingerprint sensor 180H is used to collect a fingerprint. The terminal device 100 can utilize the collected fingerprint characteristics to realize fingerprint unlocking, access an application lock, fingerprint photographing, fingerprint incoming call answering and the like.

The temperature sensor 180J is for detecting temperature. In some embodiments, the terminal device 100 performs a temperature processing strategy using the temperature detected by the temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the terminal device 100 performs a reduction in the performance of a processor located near the temperature sensor 180J in order to reduce power consumption to implement thermal protection. In other embodiments, when the temperature is below another threshold, the terminal device 100 heats the battery 142 to avoid the low temperature causing the terminal device 100 to shut down abnormally. In other embodiments, when the temperature is below a further threshold, the terminal device 100 performs boosting of the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperatures.

The touch sensor 180K, also referred to as a "touch device". The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, which is also called a "touch screen". The touch sensor 180K is for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the terminal device 100 at a different location than the display 194.

The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, bone conduction sensor 180M may acquire a vibration signal of a human vocal tract vibrating bone pieces. The bone conduction sensor 180M may also contact the pulse of the human body to receive the blood pressure pulsation signal. In some embodiments, bone conduction sensor 180M may also be provided in a headset, in combination with an osteoinductive headset. The audio module 170 may analyze the voice signal based on the vibration signal of the sound portion vibration bone block obtained by the bone conduction sensor 180M, so as to implement a voice function. The application processor may analyze the heart rate information based on the blood pressure beat signal acquired by the bone conduction sensor 180M, so as to implement a heart rate detection function.

The keys 190 include a power-on key, a volume key, etc. The keys 190 may be mechanical keys. Or may be a touch key. The terminal device 100 may receive key inputs, generating key signal inputs related to user settings and function controls of the terminal device 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration alerting as well as for touch vibration feedback. For example, touch operations acting on different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also correspond to different vibration feedback effects by touching different areas of the display screen 194. Different application scenarios (such as time reminding, receiving information, alarm clock, game, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

The indicator 192 may be an indicator light, may be used to indicate a state of charge, a change in charge, a message indicating a missed call, a notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card may be contacted and separated from the terminal apparatus 100 by being inserted into the SIM card interface 195 or by being withdrawn from the SIM card interface 195. The terminal device 100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 195 may be used to insert multiple cards simultaneously. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The terminal device 100 interacts with the network through the SIM card to realize functions such as call and data communication. In some embodiments, the terminal device 100 employs esims, namely: an embedded SIM card. The eSIM card can be embedded in the terminal device 100 and cannot be separated from the terminal device 100.

The software system of the terminal device 100 may employ a layered architecture, an event driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. In the embodiment of the application, taking an Android system with a layered architecture as an example, a software structure of the terminal device 100 is illustrated.

Fig. 2 is a software configuration block diagram of the terminal device 100 of the embodiment of the present application.

The layered architecture divides the software into several layers, each with distinct roles and branches. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, an application layer, an application framework layer, an Zhuoyun row (Android run) and system libraries, and a kernel layer, respectively.

The application layer may include a series of application packages.

As shown in fig. 2, the application package may include applications for cameras, gallery, calendar, phone calls, maps, navigation, WLAN, bluetooth, music, video, short messages, etc.

The application framework layer provides an application programming interface (application programming interface, API) and programming framework for application programs of the application layer. The application framework layer includes a number of predefined functions.

As shown in FIG. 2, the application framework layer may include a window manager, a content provider, a view system, a telephony manager, a resource manager, a notification manager, and the like.

The window manager is used for managing window programs. The window manager can acquire the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make such data accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phonebooks, etc.

The view system includes visual controls, such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, a display interface including a text message notification icon may include a view displaying text and a view displaying a picture.

The telephony manager is used to provide the communication functions of the terminal device 100. Such as the management of call status (including on, hung-up, etc.).

The resource manager provides various resources for the application program, such as localization strings, icons, pictures, layout files, video files, and the like.

The notification manager allows the application to display notification information in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification manager is used to inform that the download is complete, message alerts, etc. The notification manager may also be a notification in the form of a chart or scroll bar text that appears on the system top status bar, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, a text message is prompted in a status bar, a prompt tone is emitted, the terminal equipment vibrates, and an indicator light blinks.

Android run time includes a core library and virtual machines. Android run time is responsible for scheduling and management of the Android system.

The core library consists of two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.

The application layer and the application framework layer run in a virtual machine. The virtual machine executes java files of the application program layer and the application program framework layer as binary files. The virtual machine is used for executing the functions of object life cycle management, stack management, thread management, security and exception management, garbage collection and the like.

The system library may include a plurality of functional modules. For example: surface manager (surface manager), media library (media library), three-dimensional graphics processing library (e.g., openGL ES), 2D graphics engine (e.g., SGL), etc.

The surface manager is used to manage the display subsystem and provides a fusion of 2D and 3D layers for multiple applications.

Media libraries support a variety of commonly used audio, video format playback and recording, still image files, and the like. The media library may support a variety of audio and video encoding formats, such as MPEG4, h.264, MP3, AAC, AMR, JPG, PNG, etc.

The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.

The workflow of the terminal device 100 software and hardware is illustrated below in connection with capturing a photo scene.

When touch sensor 180K receives a touch operation, a corresponding hardware interrupt is issued to the kernel layer. The kernel layer processes the touch operation into the original input event (including information such as touch coordinates, time stamp of touch operation, etc.). The original input event is stored at the kernel layer. The application framework layer acquires an original input event from the kernel layer, and identifies a control corresponding to the input event. Taking the touch operation as a touch click operation, taking a control corresponding to the click operation as an example of a control of a camera application icon, the camera application calls an interface of an application framework layer, starts the camera application, further starts a camera driver by calling a kernel layer, and captures a still image or video by the camera 193.

The terminal device of the embodiments of the present application may communicate with other devices via a communication network, and may be referred to as an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future-evolving public land mobile network (public land mobile network, PLMN), etc. It should be understood that the embodiment of the present application does not limit the specific technology and the specific device configuration adopted by the terminal device.

In order to pursue the competitiveness of differentiation, modern terminal equipment manufacturers are forced in directions of comprehensive screens, multiple camera modules, large batteries, large-area fingerprint identification and the like, which results in higher screen occupation ratio and narrower frame in modern industrial design of terminal equipment. The impact of this trend on the antenna performance of the terminal device is mainly two-way: on the one hand, the larger and larger battery, camera module and fingerprint recognition module occupy the available space inside the mobile phone, so that the space of the antenna inside the mobile phone is smaller and smaller, the size of the antenna is continuously reduced (in modern terminal equipment, the size of the antenna, particularly the size of a low-frequency-band antenna, is generally far smaller than half wavelength and is called as an 'small antenna'), and thus the problems of reduced antenna efficiency, reduced performance of a transmitter (Tx) and a receiver (Rx), shortened battery endurance time, lower connection signals and the like are caused; on the other hand, the narrower and narrower bezel results in a smaller and smaller distance between the antenna and the screen edge, resulting in further reduced antenna efficiency. In addition, as communication technologies evolve, end products require more antennas to meet the ever increasing Radio Frequency (RF) requirements. For example, in long term evolution (long term evolution, LTE) and New Radio (NR) systems, two main technical means for achieving higher data rates, namely carrier aggregation (carrier aggregation, CA) technology and multiple input multiple output (multi input multi output, MIMO) technology, need to use multiple antennas for signal transceiving simultaneously; instead, non-cellular communication modules, such as wireless communication (wireless fidelity, wi-Fi), bluetooth, global positioning system (global positioning system, GPS), ultra Wideband (UWB), etc., require additional antennas to be deployed on the terminal device. This results in an increasing number of antennas per terminal device as the wireless mobile communication standard evolves, requiring more and more antennas to be designed in smaller and smaller spaces, which means a further reduction of the antenna size and a further reduction of the antenna efficiency.

In the case of an unchanged antenna size, the antenna may be configured to trade bandwidth for antenna efficiency at the expense of antenna efficiency or to trade bandwidth for antenna efficiency. In the prior art, the antenna gain is large enough in the terminal with a large antenna size, so that a design mode of sacrificing the antenna efficiency and replacing the bandwidth is often adopted to support as many frequency bands as possible on the same antenna. However, in modern terminal products with continuously shrinking antenna sizes, antenna efficiency becomes a bottleneck limiting air interface signal quality, and in order to achieve antenna efficiency equivalent to that of a large-size antenna, only a design mode of sacrificing bandwidth can be adopted, i.e., a small-size antenna can achieve antenna efficiency equivalent to that of a large-size antenna only within a relatively narrow bandwidth.

Therefore, in order to support as many frequency bands as possible on the same antenna, it is necessary to use an antenna tuning switch to change the resonant frequency of the antenna, that is, to connect a switch between the antenna and ground, and to change the effective electrical length of the antenna to adjust the resonant frequency of the antenna so as to match the frequency currently used in mobile phone communication. Tuning elements with different values, such as capacitors and inductors, are added between the switch and the radiating element, so that the tuning of the resonance frequency can be realized to support the communication requirements of different frequency bands. The tuning switch may also be referred to as an aperture tuning switch, and such a tuning manner of adjusting the resonant frequency of the antenna by the aperture tuning switch is referred to as aperture tuning.

In one possible implementation, as shown in fig. 3, the terminal device may include: an aperture tuning switch 301, a radio frequency front end (radio frequency front-end, RFFE) 302, and an antenna 303.

On modern end products, most cellular subsystem antennas require antenna efficiency to be improved by aperture tuning relative to the case where no tuning is performed. On some antennas operating in the main frequency band of the cellular subsystem, typically 1-2 aperture tuning switches are hooked up. Since the number of antennas of modern end products is often up to more than 10, there must be antennas that are closely spaced from each other. For antennas adjacent to each other, mutual coupling is often generated due to parasitic effect, and when the aperture tuning switches on the two antennas are positioned so that the resonant frequencies of the two antennas are relatively close, the isolation between the two antennas is poor, so that the antenna efficiency of the two antennas is reduced. Taking a mobile phone as an example, the mobile phone needs to realize different communication modes by using different radio frequency subsystems such as a cellular subsystem, a short-range communication subsystem, a satellite navigation subsystem and the like. In order to meet the working requirements of the cellular subsystem, four medium-high band (MHB) antennas respectively connected with 1-2 antenna tuning switches are often deployed on different frames of the mobile phone to support the cellular communication mode of the mobile phone. Because the shape of the mobile phone is rectangular, at least one antenna in the short-distance communication subsystem antenna and the satellite navigation subsystem antenna is necessarily close to the MHB antenna of the cellular subsystem.

It will be appreciated that the above cellular subsystem, short-range communication subsystem, and satellite navigation subsystem are merely examples, and that the radio frequency subsystem in the terminal device may include 2 or more of a cellular subsystem, a short-range communication subsystem, a satellite navigation subsystem, a satellite positioning subsystem, an Ultra Wide Band (UWB) subsystem, and other subsystems. The specific content of the rf subsystem may be adjusted according to the actual situation, and should not be construed as limiting the implementation process of the embodiment of the present application.

For ease of understanding, fig. 4 is a schematic diagram of a built-in antenna architecture 400 of a mobile phone to which an embodiment of the present application is applicable. Referring to fig. 4, the architecture 400 includes: a cellular subsystem MHB antenna 401, a short-range communications subsystem antenna 402, and a satellite navigation subsystem antenna 403. The three antennas are all located at the top frame of the mobile phone, and the short-range communication subsystem antenna 402 and the satellite navigation subsystem antenna 403 are all adjacent to the cellular subsystem antenna 401.

When the cellular subsystem MHB antenna 401 operates in a frequency band having a resonant frequency near 1.6 gigahertz (GHz), the antenna tuning switch attached to the cellular subsystem MHB antenna 401 is adjusted to a state where the resonant frequency of the cellular subsystem MHB antenna 401 is near 1.6 GHz. If the satellite navigation subsystem antenna 403 also operates in the frequency band with the resonant frequency of 1.6GHz, the resonant frequency is similar to that of the cellular subsystem MHB antenna 401, so that the isolation between the satellite navigation subsystem antenna 403 and the cellular subsystem MHB antenna 401 is poor, and the antenna efficiency of the satellite navigation subsystem antenna 403 is affected.

When the cellular subsystem MHB antenna 401 operates in a frequency band with a resonant frequency close to 2.4GHz, the antenna tuning switch attached to the cellular subsystem MHB antenna 401 is adjusted to a state that the resonant frequency of the cellular subsystem MHB antenna 401 is close to 2.4 GHz. If the short-range communication subsystem antenna 402 also operates in the frequency band with the resonant frequency of 2.4GHz, the resonant frequency is similar to that of the cellular subsystem MHB antenna 401, so that the isolation between the short-range communication subsystem antenna 402 and the cellular subsystem MHB antenna 401 will be poor, and the antenna efficiency of the short-range communication subsystem antenna 402 will be affected.

Modern terminal devices can generally adjust the resonant frequency of the antenna in the non-operating state so that the isolation of the antenna in the non-operating state and the isolation of the antenna in the operating state meet the preset isolation, thereby avoiding the influence of the antenna in the non-operating state on the antenna in the operating state. For example, for a MIMO antenna in a cellular subsystem, when it is determined that the diversity antenna is not operating, its resonant frequency is typically adjusted out of the coverage area of the main antenna to reduce the effect of signals on the diversity antenna on the main antenna, thereby improving the isolation between the built-in antennas and the performance of the main antenna. However, the above scheme only considers a single rf subsystem, and has more limitations, a smaller application range, and an antenna isolation to be improved.

In view of this, the embodiments of the present application simultaneously adjust the antenna tuning switches of the multiple rf subsystems in any operating state by using the terminal device provided with the multiple rf subsystems. Therefore, the antenna tuning method can not only adjust the antenna tuning switch in a single radio frequency subsystem, but also perform joint tuning optimization for the concurrent radio frequency subsystems under the condition that the radio frequency subsystems coexist, give consideration to the antenna tuning switch states of the concurrent radio frequency subsystems, balance and compromise the antenna efficiency of different radio frequency subsystems, and increase the applicability of the antenna tuning method; meanwhile, for the non-concurrent radio frequency subsystem, according to the working frequency band of the current working radio frequency subsystem, the tuning switch state of the antenna hung on the antenna of the non-working radio frequency subsystem is optimized, so that the antenna isolation of the non-concurrent radio frequency subsystem is improved, and the antenna efficiency is further improved.

The antenna tuning method according to the embodiment of the present application will be described in detail with reference to fig. 5. It should be understood that the antenna tuning method according to the embodiment of the present application is applied to a terminal device provided with a plurality of radio frequency subsystems.

Fig. 5 is a schematic flow chart of an antenna tuning method 500 according to an embodiment of the present application. The method 500 may be applied to a terminal device provided with a plurality of radio frequency subsystems, the hardware structure of the terminal device may be as shown in fig. 1, the software structure of the terminal device may be as shown in fig. 2, and in the case that the terminal device is a mobile phone, the built-in antenna structure of the mobile phone may be as shown in fig. 4, but the embodiment of the application is not limited thereto. As shown in fig. 5, the method 500 may include the steps of:

s501, determining the working states of a plurality of radio frequency subsystems.

It should be appreciated that the plurality of radio frequency subsystems may include 2 or more of a cellular subsystem, a short-range communications subsystem, a satellite navigation subsystem, a satellite positioning subsystem, an Ultra Wide Band (UWB) subsystem, and other subsystems, as embodiments of the present application are not limited in this respect.

The short-range communication subsystem may include a wireless communication subsystem and/or a bluetooth communication subsystem, for example.

In one possible implementation, the plurality of radio frequency subsystems may include a cellular subsystem and a non-cellular subsystem, where the non-cellular subsystem may include, for example: a short-range communications subsystem, a satellite navigation subsystem, a satellite positioning subsystem, an Ultra Wide Band (UWB) subsystem, and other subsystems. According to different coexisting working states between the two radio frequency subsystems of the cellular subsystem and the non-cellular subsystem, the plurality of radio frequency subsystems specifically comprise 3 working states: state 1, only the cellular subsystem is in an operational state; state 2, only the non-cellular subsystem is in an operational state; state 3, cellular subsystem and non-cellular subsystem are all in operation.

In another possible implementation manner, the plurality of radio frequency subsystems may include a cellular subsystem, a short-range communication subsystem and a satellite navigation subsystem, and according to different coexistence working states among different radio frequency subsystems, the plurality of radio frequency subsystems specifically includes 6 working states: state 1, only the cellular subsystem is in an operational state; state 2, only the short-range communication subsystem is in the working state; state 3, only the satellite navigation subsystem is in a working state; the state 4, the cellular subsystem and the short-range communication subsystem are all in a working state; the state 5, the cellular subsystem and the satellite navigation subsystem are all in working states; the state 6, the short-range communication subsystem and the satellite navigation subsystem are all in working states; state 7, cellular subsystem, short-range communications subsystem and satellite navigation subsystem are all in operation.

S502, determining target antenna tuning information based on the working states of the plurality of radio frequency subsystems and the first corresponding relation.

It should be appreciated that the antenna tuning information described above is used to indicate the switch state that the antenna tuning switches of the plurality of rf subsystems should maintain after adjustment. The switch state is used for indicating the frequency band of the antenna and the receiving and transmitting states.

The first correspondence is used for indicating correspondence between a plurality of working states and a plurality of antenna tuning information. In a first possible implementation manner, the first correspondence includes a correspondence between an operating state of the plurality of radio frequency subsystems and the plurality of antenna tuning information. In a second possible implementation manner, the first correspondence includes a correspondence between a plurality of antenna state identifiers and a plurality of antenna tuning information, where the plurality of antenna state identifiers are used to identify operating states of a plurality of radio frequency subsystems.

The following describes in detail the two possible implementations described above, respectively.

In a first possible implementation manner, the first correspondence includes a correspondence between a plurality of working states and a plurality of antenna tuning information, and according to different coexistence working states between two radio frequency subsystems of a cellular subsystem and a non-cellular subsystem, the first correspondence is shown in the following table, and specifically includes:

TABLE 1

Operating states of multiple radio frequency subsystems	Antenna tuning information
		Only the cellular subsystem is in operation	v_1
Only non-cellular subsystems being in operation	v_2
		Both the cellular subsystem and the non-cellular subsystem are in operation	v_3

It should be understood that v_1, v_2, and v_3 shown in table 1 may be vectors, where each element in the vector indicates a switch state to be maintained after the antenna tuning switches of the multiple rf subsystems are adjusted, respectively; alternatively, v_1, v_2, and v_3 may be character strings, each character in the character strings indicating the switch state; alternatively, v_1, v_2, and v_3 may be other information capable of indicating the switch states, which is not limited in the embodiment of the present application.

Taking the example that only the cellular subsystem is in the operating state in the built-in antenna structure 400 of the mobile phone shown in fig. 4, the above S502 specifically includes: based on the first correspondence, in table 1, the antenna tuning information corresponding to the operating state of only the cellular subsystem is searched, so as to obtain the antenna tuning information corresponding to the operating state of only the cellular subsystem as v_1, and then the target antenna tuning information is determined as v_1.

In a second possible implementation manner, the first correspondence includes a correspondence between a plurality of antenna state identifiers and a plurality of antenna tuning information, and in combination with the built-in antenna structure 400 of the mobile phone shown in fig. 4, according to different co-existing operating states between different radio frequency subsystems, the correspondence between the operating states of the radio frequency subsystems and the antenna state identifiers in the first correspondence is shown in the following table, which specifically includes:

TABLE 2

It should be understood that, as shown in table 2, states 1, 2, 3, 4, 5, 6 and 7 are merely examples of one antenna state identifier, and the antenna identifier states may be states a, b, c, d, e, f and g, and the antenna identifier states may be other identifiers, which is not limited in this embodiment of the present application.

In combination with table 2, the first correspondence is shown in the following table, and specifically includes:

TABLE 3 Table 3

Taking the example that only the cellular subsystem is in the operating state in the built-in antenna structure 400 of the mobile phone shown in fig. 4, the above S502 specifically includes: searching the antenna state identifier in the first corresponding relation corresponding to the operating state of only the cellular subsystem in the table 2 as the state 1, searching the antenna tuning information corresponding to the state 1 in the table 3 based on the first corresponding relation to obtain the antenna tuning information corresponding to the state 1 as v_1, and determining the target antenna tuning information as v_1.

S503, adjusting antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information.

It should be understood that the total number of the antenna tuning switches of the plurality of rf subsystems is at least 1, and the number of the antenna tuning switches of each of the plurality of rf subsystems may be 0, 1 or more, which is not limited in the embodiment of the present application.

In the embodiment of the application, the first corresponding relation can clearly indicate the corresponding relation between a plurality of working states and a plurality of antenna tuning information, and the terminal equipment provided with a plurality of radio frequency subsystems can adjust the antenna tuning switches in a plurality of radio frequency subsystems in any working state according to the first corresponding relation. Therefore, the antenna tuning method can not only adjust the antenna tuning switch in a single radio frequency subsystem, can perform joint tuning optimization aiming at the concurrent radio frequency subsystems under the condition that the radio frequency subsystems coexist, and can balance and compromise the antenna efficiency of different radio frequency subsystems and increase the applicability of the antenna tuning method; meanwhile, for the non-concurrent radio frequency subsystem, according to the working frequency band of the current working radio frequency subsystem, the state of an antenna switch hung on an antenna of the non-working radio frequency subsystem is adjusted, so that the antenna isolation of the non-concurrent radio frequency subsystem is improved, and the antenna efficiency is further improved.

As an alternative embodiment, the method 500 may further include: and determining the quality of a first wireless channel of the radio frequency subsystem in an operating state in the plurality of radio frequency subsystems. The determining the tuning information of the target antenna based on the working states of the radio frequency subsystems and the first corresponding relation includes: determining a target second corresponding relation from a plurality of second corresponding relations based on the working states of the plurality of radio frequency subsystems and the first corresponding relation, wherein the plurality of second corresponding relations respectively comprise corresponding relations between a plurality of gears and a plurality of antenna tuning information, wherein the corresponding relations are determined based on the quality of first wireless channels of different radio frequency subsystems; and determining target antenna tuning information based on the first wireless channel quality of the radio frequency subsystem in the working state and the target second corresponding relation.

Illustratively, the first wireless channel quality may include 1 or more of a reference signal received power (reference signal receiving power, RSRP) parameter, a received signal strength (received signal strength indicator, RSSI) parameter, and other wireless channel quality parameters, which are not limited by the embodiments of the present application. It should be appreciated that when there is a large difference in the magnitude of the above-described radio channel quality parameters, the terminal device may perform data scaling processing such as normalization on the radio channel quality parameters.

In the embodiment of the present application, the plurality of second corresponding relations include corresponding relations between a plurality of gear positions and a plurality of antenna tuning information, which are determined based on the quality of the first wireless channels of different radio frequency subsystems, respectively. In a first possible implementation manner, when the number of the radio frequency subsystems in the working state is greater than or equal to 2, the plurality of gear positions are determined based on the comparison result of the first wireless channel quality of the plurality of radio frequency subsystems in the working state. In a second possible implementation manner, the plurality of gear positions are determined based on a first wireless channel quality of the radio frequency subsystem in an operating state and a first preset threshold value.

In a first possible implementation manner, when the number of the radio frequency subsystems in the working state is greater than or equal to 2, the plurality of gear positions are determined based on the difference between the first wireless channel qualities of the plurality of radio frequency subsystems in the working state.

When the number of the radio frequency subsystems in the working state is greater than or equal to 2, the terminal equipment can make two-by-two difference on the quality of the first wireless channels of the radio frequency subsystems in the working state, and the absolute value of the difference value is compared with a preset difference value threshold value. The preset difference threshold comprises a first preset difference threshold and a second preset difference threshold, and the first preset difference threshold is larger than the second preset difference threshold. If the absolute value of the difference is greater than or equal to the first preset difference threshold, one of the first wireless channel qualities of the two radio frequency subsystems in the working state corresponding to the difference is far greater than or far less than the other; if the absolute value of the difference is smaller than the first preset difference threshold value but larger than or equal to the second preset difference threshold value, one of the first wireless channel qualities of the two radio frequency subsystems in the working state corresponding to the difference is larger than or smaller than the other; if the absolute value of the difference is smaller than the second preset difference threshold (the second preset difference threshold is usually set to a value close to 0, then it can be understood that the difference is close to 0), then one of the first wireless channel qualities of the two active multiple radio frequency subsystems corresponding to the difference is close to the other.

Taking the mobile phone built-in antenna structure 400 shown in fig. 4 as an example, the cellular subsystem and the short-range communication subsystem are both in an operating state, the above-mentioned multiple gear positions are shown in the following table, and specifically include:

TABLE 4 Table 4

In a second possible implementation manner, the plurality of gear positions are determined based on a first wireless channel quality of the radio frequency subsystem in an operating state and a first preset threshold.

Taking the mobile phone built-in antenna structure 400 shown in fig. 4 as an example, the cellular subsystem, the short-range communication subsystem and the satellite navigation subsystem are all in a working state, the above multiple gear positions are shown in the following table, and specifically include:

TABLE 5

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Taking the mobile phone built-in antenna structure 400 shown in fig. 4 as an example, the cellular subsystem and the satellite navigation subsystem are both in a working state, the above multiple gear positions are shown in the following table, and specifically include:

TABLE 6

The antenna tuning information in the first correspondence and/or the second correspondence may be obtained experimentally in a laboratory or a factory. By debugging the antenna tuning information, the wireless channel quality of a plurality of groups of different radio frequency subsystems can be obtained, and selecting the antenna tuning information from the wireless channel quality of the plurality of groups of different radio frequency subsystems comprises the following three possible implementation modes:

in a first possible implementation, a set of antenna tuning information when the wireless channel quality is the best is selected as the antenna tuning information in the first correspondence and/or the second correspondence.

In a second possible implementation manner, multiple sets of antenna tuning information with the best wireless channel quality are selected, weighting processing is performed on the multiple sets of antenna tuning information, and the antenna tuning information after the weighting processing is used as the antenna tuning information in the first corresponding relation and/or the second corresponding relation.

In a third possible implementation, for any one radio channel quality distribution, the solution of the antenna tuning information may be translated into a constraint optimization problem as follows:

s.t.Qi≥TiforRi≥Ti

in the constraint optimization problem described above, I (R _i ＜T _i ) As a function of the readiness, when R _i ＜T _i When I (R) _i ＜T _i ) =1; when R is _i ≥T _i When I (R) _i ＜T _i )＝0，R _i For tuning a pre-RF subsystem S _i Wireless channel quality, Q _i For tuned RF subsystem S _i Is used for the wireless channel quality of the wireless communication system.

In the first possible implementation manner, only one group with the best wireless channel quality is selected from the plurality of groups of antenna tuning information, and the first possible implementation manner can be completed without calculation, so that the efficiency is high; compared with the first possible implementation manner, the second possible implementation manner can carry out weighting processing on multiple groups of antenna tuning information when the wireless channel quality is the best, and ensures that different radio frequency subsystems are in a state with better wireless channel quality; compared with the second possible implementation mode, the third possible implementation mode has the advantages that the calculation parameters do not need to be set manually, the calculation result does not have artificial subjective intention, joint tuning optimization can be carried out on the concurrent radio frequency subsystems, the antenna tuning switch states of the concurrent radio frequency subsystems are considered, the antenna efficiency of different radio frequency subsystems can be balanced and balanced, and the tuning result is more accurate.

As an optional embodiment, after S503, the terminal device provided with a plurality of radio frequency subsystems may acquire the second radio channel quality of the radio frequency subsystem in the operating state after adjustment, and if a value obtained by subtracting the second radio channel quality from the first radio channel quality is greater than or equal to a second preset threshold, return the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

When the value obtained by subtracting the second wireless channel quality from the first wireless channel quality is larger than or equal to a second preset threshold value, the wireless channel quality after tuning the radio frequency subsystem in a working state is not improved compared with the wireless channel quality before tuning, and at the moment, the antenna tuning switches of the radio frequency subsystems can be retracted to a state before adjustment. Therefore, the quality of the radio channel after tuning of the radio frequency subsystem in the working state can be always kept under the condition that the quality of the radio channel is improved or leveled compared with that of the radio channel before tuning, the antenna tuning switches of the radio frequency subsystems can be guaranteed to be adjusted in a meaningful mode, the effectiveness of an antenna tuning method is further guaranteed, and the tuning efficiency is improved.

As an alternative embodiment, the method 500 may further include: and after the preset time period, readjusting the antenna tuning switches of the plurality of radio frequency subsystems.

For example, when the terminal device provided with a plurality of radio frequency subsystems is located in a place with poor communication conditions such as an elevator and a train, after the antenna tuning switches of the plurality of radio frequency subsystems are adjusted, the radio channel quality of the radio frequency subsystems in an operating state may not be improved or leveled compared with the radio channel quality before tuning, that is, at this time, the adjustment of the antenna tuning switches of the plurality of radio frequency subsystems may be meaningless. Therefore, after the preset time, when the terminal equipment provided with the plurality of radio frequency subsystems is in a place with good communication condition, the antenna tuning switches of the plurality of radio frequency subsystems are readjusted. Therefore, meaningless adjustment of the antenna tuning switches of the plurality of radio frequency subsystems can be effectively avoided, and the adjustment efficiency is further improved.

As an alternative embodiment, the antenna tuning information is represented by a vector, the length of the vector being greater than or equal to the number of tunable antenna tuning switches in the plurality of radio frequency subsystems, each component in the vector representing a state of each antenna tuning switch.

In one possible implementation, the length of the vector is equal to the number of tunable antenna tuning switches in the plurality of radio frequency subsystems. Taking the example that the number of tunable antenna tuning switches in the plurality of radio frequency subsystems is 5 and the length of the vector is 5, when the length of the vector is equal to the number of tunable antenna tuning switches in the plurality of radio frequency subsystems, each component in the vector represents the state of each antenna tuning switch.

In another possible implementation, the vector has a length greater than the number of tunable antenna tuning switches in the plurality of radio frequency subsystems. Taking the example that the number of tunable antenna tuning switches in the plurality of radio frequency subsystems is 7 and the length of the vector is 5, at this time, the length of the vector is greater than the number of tunable antenna tuning switches in the plurality of radio frequency subsystems, and considering the state reading efficiency of the antenna tuning switches, the first five components in the vector are selected to represent the state of each antenna tuning switch.

It should be appreciated that any five components in the vector may be selected to represent the state of each antenna tuning switch without regard to the state reading efficiency of the antenna tuning switch.

It should also be understood that the antenna tuning information may be represented by other forms such as a character string, and the application is not limited thereto.

In the case where the cellular subsystem is in an operating state, as an optional embodiment, before S502, the method further includes: and determining the working frequency range of the cellular subsystem.

In one possible implementation, the target antenna tuning information is determined based on the operating frequency band of the cellular subsystem, the operating states of the plurality of radio frequency subsystems, and the first correspondence. The first correspondence relationship includes a correspondence relationship between a plurality of operating states and a plurality of antenna tuning information, and in combination with the first correspondence relationship shown in table 2, the correspondence relationship between the operating frequency band of the cellular subsystem, the operating states of the plurality of radio frequency subsystems, and the first correspondence relationship is shown in the following table, and specifically includes:

TABLE 7

Taking the built-in antenna structure 400 of the mobile phone shown in fig. 4 as an example, the antenna tuning architecture of the terminal device will be described in detail with reference to fig. 6.

Fig. 6 is a schematic diagram of an antenna tuning architecture 600 provided in a terminal device according to an embodiment of the present application. Referring to fig. 6, an antenna tuning architecture 600 may include: an application processor (application processor, AP)/System On Chip (SOC) 601, a radio frequency subsystem 602, a radio frequency subsystem front end module 603, a tuning control module 604, a radio frequency chip (radio frequency integrated circuit, RFIC) 605, a path switch (antenna switch module, ASM) 606, and an antenna system 607.

Wherein the radio frequency subsystem 602 comprises: a cellular subsystem 6021, a short-range communication subsystem 6022, and a satellite navigation subsystem 6023; short-range communications subsystem 6022 further includes: a wireless communication subsystem (wireless fidelity, WIFI) 6024 and a bluetooth communication subsystem (BT) 6025; the rf subsystem front-end module 603 includes: a cellular subsystem front-end module 6031, a short-range communication subsystem front-end module 6032, and a satellite navigation subsystem front-end module 6033; the antenna system 607 includes: antenna 6071 and antenna tuning switch 6072.

The AP/SOC 601 is configured to process internal data of the terminal device and perform radio frequency transmission. The SOC is particularly used for radio frequency transceiving, frequency synthesis, power amplification and processing of digital signals, and the AP is a processor of the SOC, and is particularly used for application running of terminal equipment and internal data processing of the terminal equipment.

The cellular subsystem 6021 enables control of the cellular subsystem front-end module 6031 and the antenna system 607 via the RFIC 605. The RFIC 605 plays a role of transmitting and receiving signals, and converts a binary signal into a radio signal of a certain frequency and transmits the radio signal through the antenna 6071.

The short-range communication subsystem 6022 realizes the receiving and transmitting of the radio frequency signals and the control of the antenna system 607 through the short-range communication subsystem front-end module 6032.

The satellite navigation subsystem 6023 realizes the receiving and transmitting of the radio frequency signals and the control of the antenna system 607 through the front-end module 6033 of the satellite navigation subsystem.

The tuning control module 604 is configured to control the antenna tuning switch 6072, and adjust the antenna tuning switch 6072 according to the current operating state of each radio frequency subsystem of the terminal device.

In the embodiment of the present application, the antenna tuning architecture 600 can perform joint tuning optimization for the concurrent radio frequency subsystems under the condition that the radio frequency subsystems coexist, give consideration to the antenna tuning switch states of the concurrent radio frequency subsystems, and can balance and compromise the antenna efficiency of different radio frequency subsystems, thereby increasing the applicability of the antenna tuning method; meanwhile, for the non-concurrent radio frequency subsystem, according to the working frequency band of the current working radio frequency subsystem, the tuning switch state of the antenna hung on the antenna of the non-working radio frequency subsystem is optimized, so that the antenna isolation of the non-concurrent radio frequency subsystem is improved, and the antenna efficiency is further improved.

The process by which the antenna tuning architecture 600 performs the antenna tuning method is described in detail below in conjunction with fig. 7 and 8.

Fig. 7 is a schematic diagram of a module interaction flow involved in an antenna tuning method 700 according to an embodiment of the present application. Referring to fig. 7, an antenna tuning method 700 includes the steps of:

s701, the tuning control module 604 obtains the operation state of the short-range communication subsystem 6022 and the operation state of the satellite navigation subsystem 6023 from the AP/SOC 601.

Optionally, the tuning control module 604 obtains the operating state of the short-range communication subsystem 6022 from the short-range communication subsystem front-end module 6032 and obtains the operating state of the satellite navigation subsystem 6023 from the satellite navigation subsystem front-end module 6033.

S702, the tuning control module 604 obtains the operation state of the cellular subsystem 6021 from the cellular subsystem 6021.

Optionally, the tuning control module 604 obtains the operating state of the cellular subsystem 6021 from the RFIC 605.

S703, the tuning control module 604 determines the tuning information of the target antenna based on the operating states of the multiple radio frequency subsystems and the first correspondence.

S704, the tuning control module 604 adjusts antenna tuning switches of the multiple radio frequency subsystems based on the target antenna tuning information.

After S704, the antenna tuning method further includes: acquiring the second wireless channel quality of the adjusted radio frequency subsystem in the working state; and under the condition that the value obtained by subtracting the second wireless channel quality from the first wireless channel quality is larger than or equal to a second preset threshold value, returning the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

After S704, the antenna tuning method further includes: and after the preset time period, readjusting the antenna tuning switches of the plurality of radio frequency subsystems.

Fig. 8 is a schematic block interaction flow diagram related to another antenna tuning method 800 according to an embodiment of the present application. The antenna tuning method 800 includes the steps of:

s801, the tuning control module 604 obtains the operating state of the short-range communication subsystem 6022 and the operating state of the satellite navigation subsystem 6023 from the AP/SOC 601.

S802, the tuning control module 604 obtains the operation state of the cellular subsystem 6021 from the cellular subsystem 6021.

Alternatively, the tuning control module 604 obtains the operating frequency band of the cellular subsystem from the cellular subsystem 6021 or the RFIC 605, in the case where the cellular subsystem is in operation.

S803, the tuning control module 604 determines the rf subsystem in the operating state based on the operating states of the plurality of rf subsystems.

S804, the tuning control module 604 obtains the first wireless channel quality of the radio frequency subsystem in the working state.

The tuning control module 604 obtains the first wireless channel quality of the short-range communication subsystem 6022 and the first wireless channel quality of the satellite navigation subsystem 6023 from the AP/SOC 601.

The tuning control module 604 obtains the first wireless channel quality of the cellular subsystem 6021 from the cellular subsystem 6021.

S805, the tuning control module 604 determines a target second corresponding relationship from the plurality of second corresponding relationships based on the operating states of the plurality of radio frequency subsystems and the first corresponding relationship.

S806, the tuning control module 604 determines the target antenna tuning information based on the first wireless channel quality of the radio frequency subsystem in the working state and the target second correspondence.

And in the target second corresponding relation, determining a gear according to the quality of the first wireless channel, wherein the antenna tuning information corresponding to the gear is the target antenna tuning information.

S807, the tuning control module 604 adjusts antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information.

After the step S807, the antenna tuning method further includes: acquiring the second wireless channel quality of the adjusted radio frequency subsystem in the working state; and under the condition that the value obtained by subtracting the second wireless channel quality from the first wireless channel quality is larger than or equal to a second preset threshold value, returning the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

After the step S807, the antenna tuning method further includes: and after the preset time period, readjusting the antenna tuning switches of the plurality of radio frequency subsystems.

It should be understood that, in the embodiment of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.

The method according to the embodiment of the present application is described in detail above with reference to fig. 1 to 8, and the terminal device according to the embodiment of the present application will be described in detail below with reference to fig. 9 and 10.

Fig. 9 shows a terminal device 900 provided in an embodiment of the present application. The terminal device 900 includes: the system comprises a processing unit 901 and an adjusting unit 902, wherein the processing unit 901 is used for determining the working states of a plurality of radio frequency subsystems; determining target antenna tuning information based on the working states of the plurality of radio frequency subsystems and a first corresponding relation, wherein the first corresponding relation comprises a corresponding relation between the plurality of working states and the plurality of antenna tuning information; an adjusting unit 902, configured to adjust antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information.

In a possible implementation manner, the processing unit 901 is further configured to determine a first wireless channel quality of an active radio frequency subsystem of the plurality of radio frequency subsystems; determining a target second corresponding relation from a plurality of second corresponding relations based on the working states and the first corresponding relations of the plurality of radio frequency subsystems, wherein the plurality of second corresponding relations respectively comprise corresponding relations between a plurality of gears and a plurality of antenna tuning information, wherein the corresponding relations are determined based on the quality of first wireless channels of different radio frequency subsystems; and determining the target antenna tuning information based on the first wireless channel quality of the radio frequency subsystem in the working state and the target second corresponding relation.

In one possible implementation manner, if the number of the radio frequency subsystems in the working state is greater than or equal to 2, the plurality of gear positions in the target second corresponding relationship are determined based on the difference between the first wireless channel qualities of the plurality of radio frequency subsystems in the working state.

In one possible implementation manner, the plurality of gear positions in the target second corresponding relationship is determined based on the first wireless channel quality of the radio frequency subsystem in the working state and a first preset threshold value.

In a possible implementation manner, the processing unit 901 is further configured to obtain, after adjusting the antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information, a second radio channel quality of the radio frequency subsystem in an adjusted working state; the adjusting unit 902 is further configured to, when a value obtained by subtracting the second wireless channel quality from the first wireless channel quality is greater than or equal to a second preset threshold, return the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

In a possible implementation manner, the adjusting unit 902 is further configured to readjust the antenna tuning switches of the plurality of radio frequency subsystems after a preset period of time.

In one possible implementation, the antenna tuning information is represented by a vector, the length of the vector being greater than or equal to the number of tunable antenna tuning switches in the plurality of radio frequency subsystems, each component in the vector representing a state of each antenna tuning switch.

In a possible implementation manner, the processing unit 901 is further configured to determine an operating frequency band of the cellular subsystem when the cellular subsystem is in an operating state; and determining the target antenna tuning information based on the operating frequency band of the cellular subsystem, the operating states of the plurality of radio frequency subsystems and the first corresponding relation.

In one possible implementation, the terminal device 900 may further include: and a memory cell. The memory unit may include one or more memories, which may be one or more devices, circuits, or devices for storing programs or data.

The memory unit may exist separately and be connected to the processing unit 901 via a communication bus. The memory unit may also be integrated with the processing unit 901.

Taking the example that the terminal device 900 may be a chip or a chip system of the electronic device in the embodiment of the present application, the storage unit may store computer-executed instructions of the method of the electronic device, so that the processing unit 901 performs the method of the electronic device in the embodiment described above. The storage unit may be a register, a cache or a random access memory (random access memory, RAM) or the like, and may be integrated with the processing unit 901. The memory unit may be a read-only memory (ROM) or other type of static storage device that may store static information and instructions, and may be independent of the processing unit 901.

It should be understood that the terminal device 900 herein is embodied in the form of functional modules. The term "unit" herein may refer to an application specific integrated circuit (application specific integrated circuit, ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor, etc.) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an alternative example, it will be understood by those skilled in the art that the terminal device 900 may be specifically a terminal device in the foregoing embodiment, so as to implement each flow and/or step in the foregoing method embodiment, and will not be described herein in detail for avoiding repetition.

The terminal device 900 has a function of implementing the corresponding steps performed in the method; the above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

In an embodiment of the present application, the terminal device 900 in fig. 9 may also be a chip or a chip system, for example: system on chip (SoC).

Fig. 10 is a schematic block diagram of another terminal device 1000 provided in an embodiment of the present application. The terminal device 1000 comprises a processor 1001, a transceiver 1002 and a memory 1003. Wherein the processor 1001, the transceiver 1002 and the memory 1003 communicate with each other through an internal connection path, the memory 1003 is used for storing instructions, and the processor 1001 is used for executing the instructions stored in the memory 1003 to control the transceiver 1002 to receive and/or transmit signals.

It is to be understood that terminal device 1000 may be embodied as a terminal device in the above-described embodiments and may be configured to perform various steps and/or procedures in the above-described methods. The memory 1003 may optionally include read-only memory and random access memory and provide instructions and data to the processor 1001. A portion of the memory may also include non-volatile random access memory. For example, the memory 1003 may also store information of a device type. The processor 1001 may be configured to execute instructions stored in the memory 1003 and, when the processor 1001 executes instructions stored in the memory, the processor 1001 is configured to perform the steps and/or flow of the method 900 described above. The transceiver 1002 may include a transmitter that may be used to implement various steps and/or processes for performing transmit actions corresponding to the transceiver described above, and a receiver that may be used to implement various steps and/or processes for performing receive actions corresponding to the transceiver described above.

It should be appreciated that in embodiments of the present application, the processor may be a central processing unit (central processing unit, CPU), the processor may 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. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or by instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor executes instructions in the memory to perform the steps of the method described above in conjunction with its hardware. To avoid repetition, a detailed description is not provided herein.

The present application also provides a computer-readable storage medium for storing a computer program for implementing the method in the above-described embodiments.

The present application also provides a computer program product comprising a computer program (which may also be referred to as code, or instructions) which, when run on a computer, performs the method of the above embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system, apparatus and module may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed over a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a specific implementation of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and all changes and substitutions are included in the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. An antenna tuning method for a terminal device provided with a plurality of radio frequency subsystems, the method comprising:

determining the working states of the plurality of radio frequency subsystems;

determining target antenna tuning information based on the working states of the plurality of radio frequency subsystems and a first corresponding relation, wherein the first corresponding relation comprises a corresponding relation between the plurality of working states and the plurality of antenna tuning information;

adjusting antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information;

the method further comprises the steps of:

determining the quality of a first wireless channel of a radio frequency subsystem in a working state in the plurality of radio frequency subsystems;

the determining the tuning information of the target antenna based on the working states of the radio frequency subsystems and the first corresponding relation includes:

Determining a target second corresponding relation from a plurality of second corresponding relations based on the working states of the plurality of radio frequency subsystems and the first corresponding relation, wherein the plurality of second corresponding relations respectively comprise corresponding relations between a plurality of gears and a plurality of antenna tuning information, wherein the corresponding relations are determined based on the first wireless channel quality of different radio frequency subsystems;

and determining the target antenna tuning information based on the first wireless channel quality of the radio frequency subsystem in the working state and the target second corresponding relation.

2. The method of claim 1, wherein the plurality of gear positions in the target second correspondence is determined based on a difference in quality of first wireless channels of the plurality of radio frequency subsystems in operation if the number of radio frequency subsystems in operation is greater than or equal to 2.

3. The method of claim 1, wherein the plurality of gear positions in the target second correspondence is determined based on a first wireless channel quality of the active radio frequency subsystem and a first preset threshold.

4. A method according to any one of claims 1 to 3, wherein after said adjusting the antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information, the method further comprises:

Acquiring the second wireless channel quality of the adjusted radio frequency subsystem in the working state;

and under the condition that the value obtained by subtracting the second wireless channel quality from the first wireless channel quality is larger than or equal to a second preset threshold value, returning the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

5. The method according to claim 4, wherein the method further comprises:

and after the preset time period, the antenna tuning switches of the plurality of radio frequency subsystems are readjusted.

6. The method of any of claims 1-3, 5, wherein the antenna tuning information is represented by a vector, a length of the vector being greater than or equal to a number of tunable antenna tuning switches in the plurality of radio frequency subsystems, each component in the vector representing a state of each antenna tuning switch.

7. The method of any one of claims 1 to 3, 5, wherein the plurality of radio frequency subsystems comprises: a cellular subsystem, a short-range communications subsystem, and a satellite navigation subsystem.

8. The method of claim 7, wherein the method further comprises:

Determining the working frequency band of the cellular subsystem under the condition that the cellular subsystem is in a working state;

and determining the target antenna tuning information based on the working frequency band of the cellular subsystem, the working states of the plurality of radio frequency subsystems and the first corresponding relation.

9. A terminal device provided with a plurality of radio frequency subsystems, comprising:

a processing unit and an adjusting unit;

the processing unit is used for determining the working states of the plurality of radio frequency subsystems; determining target antenna tuning information based on the working states of the plurality of radio frequency subsystems and a first corresponding relation, wherein the first corresponding relation comprises a corresponding relation between the plurality of working states and the plurality of antenna tuning information;

the adjusting unit is used for adjusting antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information;

the processing unit is further configured to:

determining the quality of a first wireless channel of a radio frequency subsystem in a working state in the plurality of radio frequency subsystems; determining a target second corresponding relation from a plurality of second corresponding relations based on the working states of the plurality of radio frequency subsystems and the first corresponding relation, wherein the plurality of second corresponding relations respectively comprise corresponding relations between a plurality of gears and a plurality of antenna tuning information, wherein the corresponding relations are determined based on the first wireless channel quality of different radio frequency subsystems; and determining the target antenna tuning information based on the first wireless channel quality of the radio frequency subsystem in the working state and the target second corresponding relation.

10. The terminal device of claim 9, wherein if the number of the radio frequency subsystems in the operating state is greater than or equal to 2, the plurality of gear positions in the target second correspondence is determined based on a difference between the first radio channel qualities of the plurality of radio frequency subsystems in the operating state.

11. The terminal device of claim 9, wherein the plurality of gear positions in the target second correspondence is determined based on a first wireless channel quality of the radio frequency subsystem in an operating state and a first preset threshold.

12. The terminal device according to any of claims 9 to 11, wherein the processing unit is further configured to obtain, after the adjusting the antenna tuning switches of the plurality of radio frequency subsystems based on the target antenna tuning information, a second radio channel quality of the radio frequency subsystem in an operating state after the adjusting;

the adjusting unit is further configured to, when a value obtained by subtracting the second wireless channel quality from the first wireless channel quality is greater than or equal to a second preset threshold, return the antenna tuning switches of the plurality of radio frequency subsystems to a state before adjustment.

13. The terminal device of claim 12, wherein the adjusting unit is further configured to readjust the antenna tuning switches of the plurality of radio frequency subsystems after a preset period of time.

14. The terminal device of any of claims 9 to 11, 13, wherein the antenna tuning information is represented by a vector, the length of the vector being greater than or equal to the number of tunable antenna tuning switches in the plurality of radio frequency subsystems, each component in the vector representing a state of each antenna tuning switch.

15. The terminal device according to any of the claims 9 to 11, 13, characterized in that the plurality of radio frequency subsystems comprises: a cellular subsystem, a short-range communications subsystem, and a satellite navigation subsystem.

16. The terminal device of claim 15, wherein the processing unit is further configured to determine an operating frequency band of the cellular subsystem if the cellular subsystem is in an operating state; and determining the target antenna tuning information based on the working frequency band of the cellular subsystem, the working states of the plurality of radio frequency subsystems and the first corresponding relation.

17. A terminal device, comprising: a processor coupled to a memory for storing a computer program which, when invoked by the processor, causes the terminal device to perform the method of any one of claims 1 to 8.

18. A computer readable storage medium storing a computer program comprising instructions for implementing the method of any one of claims 1 to 8.