CN112469112B - Frequency control method, device, radio frequency system and communication equipment - Google Patents

Abstract

The embodiment of the present application relates to a frequency control method, device, radio frequency system, and communication equipment. The frequency control method includes: when the power amplifier is in the working state, acquiring the transmission power of the power amplifier to determine the transmission power corresponding to the transmission power a power level; controlling a voltage converter to switch to an operating frequency corresponding to the power level, the voltage converter being used to supply power to the power amplifier at the operating frequency. Through the above steps, the operating frequency of the voltage converter can be effectively adjusted according to the operating state of the communication system and the corresponding transmission power, thereby suppressing the intermodulation interference phenomenon between the communication system and the voltage converter, improving the communication quality of the communication system, and improving The user's communication experience.

Description

Frequency control method, device, radio frequency system and communication equipment

technical field

The embodiments of the present application relate to the technical field of communication, and in particular, to a frequency control method, device, radio frequency system, and communication equipment.

Background technique

As communication devices become more powerful and consume more power, the standby time is gradually shortened. As users pay more and more attention to the standby time, fast charging has become the best way to solve the power consumption problem. Correspondingly, a higher input and output voltage is usually configured for the battery module of the communication device to realize the fast charging function. However, when the battery module supplies power to other devices in the communication equipment, it will interfere with the communication of the communication system, greatly affecting the communication quality of the communication system.

Contents of the invention

Embodiments of the present application provide a frequency control method, device, radio frequency system, and communication equipment, which can suppress the impact of a battery module on a communication system and improve communication quality.

A frequency control method, the method comprising:

When the power amplifier is in a working state, acquiring the transmit power of the power amplifier;

determining a power level corresponding to the transmission power;

A voltage converter is controlled to switch to an operating frequency corresponding to the power level, the voltage converter is used to supply power to the power amplifier at the operating frequency.

A frequency control device comprising:

A power acquisition module, configured to acquire the transmission power of the power amplifier when the power amplifier is in a working state;

A level acquisition module, configured to determine a power level corresponding to the transmit power;

A switching module, configured to control a voltage converter to switch to an operating frequency corresponding to the power level, and the voltage converter is configured to supply power to the power amplifier at the operating frequency.

A radio frequency system comprising:

A radio frequency component, including a power amplifier, configured to transmit a radio frequency output signal when the power amplifier is in a working state, and output the transmission power of the radio frequency output signal;

A voltage converter, connected to the power amplifier and an external battery unit, is used to convert the voltage output by the battery unit into a power supply voltage, and output the power supply voltage according to the operating frequency to supply power to the power amplifier;

A frequency control device is connected to the power amplifier and the voltage converter respectively, and the frequency control device is used to obtain the transmission power of the power amplifier when the power amplifier is in the working state; determine the transmission power corresponding to the transmission power a power level; controlling the voltage converter to switch to an operating frequency corresponding to said power level.

A communication device, the communication device comprising:

a radio frequency system as above;

The battery unit is connected with the voltage converter in the radio frequency system.

The above-mentioned frequency control method, device, radio frequency system and communication equipment, the frequency control method includes: when the power amplifier is in the working state, obtaining the transmission power of the power amplifier to determine the power level corresponding to the transmission power; controlling the voltage conversion The voltage converter is switched to an operating frequency corresponding to the power level, and the voltage converter is used to supply power to the power amplifier at the operating frequency. Through the above steps, the operating frequency of the voltage converter can be effectively adjusted according to the operating state of the communication system and the corresponding transmission power, thereby suppressing the intermodulation interference phenomenon between the communication system and the voltage converter, improving the communication quality of the communication system, and improving The user's communication experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the traditional technology. Obviously, the accompanying drawings in the following description are only the present invention For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is one of flow charts of the frequency control method of an embodiment;

Fig. 2 is the second flow chart of the frequency control method of an embodiment;

Fig. 3 is the third flowchart of the frequency control method of an embodiment;

FIG. 4 is a fourth flowchart of a frequency control method according to an embodiment;

FIG. 5 is a fifth flowchart of a frequency control method according to an embodiment;

FIG. 6 is a sixth flowchart of a frequency control method in an embodiment;

Fig. 7 is a structural block diagram of a frequency control device according to an embodiment;

Fig. 8 is one of structural block diagrams of the radio frequency system of an embodiment;

FIG. 9 is the second structural block diagram of the radio frequency system of an embodiment;

FIG. 10 is a third structural block diagram of a radio frequency system according to an embodiment;

Fig. 11 is a schematic diagram of the internal structure of a communication device according to an embodiment.

Component label description:

Radio frequency systems: 10; frequency control devices: 100; power acquisition modules: 110; level acquisition modules: 120; switching modules: 130; radio frequency components: 200; power amplifiers: 210; radio frequency transceivers: 220; power detectors: 230; Voltage Converter: 300; Battery Voltage: 20.

Detailed ways

In order to facilitate understanding of the embodiments of the present application, the following will describe the embodiments of the present application more comprehensively with reference to related drawings. A preferred embodiment of the embodiments of the application is given in the accompanying drawings. However, the embodiments of the present application can be implemented in many different forms, and are not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the embodiments of the present application more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the embodiments of this application. The terms used herein in the description of the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The frequency control method in each embodiment of the present application is described by taking the operation on the communication equipment as an example. Specifically, the frequency control device 100 operating in the communication equipment is used as an example for illustration. The frequency control device 100 may have a digital signal Processor for processing functions. Wherein, a communication device may be understood as an electronic device having a communication function, such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant, personal digital assistant), a POS (Point of Sales, sales terminal), a vehicle computer, a wearable device, and the like.

It can be understood that, in the above-mentioned communication equipment, a double-cell high-voltage battery unit can be used for charging and discharging, so as to realize the function of high-voltage fast charging, wherein charging refers to charging to the high-voltage battery unit through an adapter, a charging contact, and other structures. Charging and discharging refer to the high-voltage battery unit supplying power to other devices in the communication equipment. The voltage converter 300 performs voltage conversion based on the charging, discharging and voltage stabilizing mechanism of a capacitor plus a diode. Therefore, a large amount of low-frequency interference will be generated during the conversion process. The frequency of the low-frequency interference signal usually ranges from 100KHz to 50MHz. Further, when the voltage converter 300 supplies power to the power amplifier 210 of the communication system, the output of the voltage converter 300 with the low-frequency interference signal supplies power to the VCC of the power amplifier 210 . Due to the physical phenomenon of intermodulation in the system, intermodulation interference occurs after the low-frequency interference signal and the main RF signal are intermodulated, resulting in some RF indicators of communication and affecting user experience.

FIG. 1 is one of the flowcharts of a frequency control method according to an embodiment. Referring to FIG. 1 , in this embodiment, the frequency control method includes steps 102 to 106 .

Step 102, when the power amplifier 210 is in the working state, acquire the transmission power of the power amplifier 210.

Wherein, the power amplifier 210 of this embodiment is a power amplifier 210 of a communication system, such as a power amplifier 210 of a Global System for Mobile Communications (GSM) system, and the GSM system of a communication device can be used to implement a call function, so , when intermodulation interference occurs between the operating frequency of the voltage converter 300 and the GSM system, radio frequency indicators such as the modulation spectrum and Rx noise of the GSM system will be affected by deterioration, thereby affecting the experience of the user during the call.

It can be understood that the intermodulation interference between the GSM system and the operating frequency of the voltage converter 300 is relatively serious, so the embodiments of the present application focus on the GSM system as an example for description. In other embodiments, the communication system also includes but is not limited to a wireless fidelity (wireless fidelity, WIFI) system, a global positioning system (global positioning system, GPS) system, a long-term evolution (Long Time Evolution, LTE) system, and the like. Further, if there are two communication systems in the communication device for communication, the communication frequencies of the two communication systems can also be avoided at the same time based on the control method of this embodiment, so as to achieve a better communication effect.

Specifically, taking the communication system as the GSM system as an example, the working state of the power amplifier 210 means that the power amplifier 210 of the GSM system is in the state of transmitting radio frequency signals, that is, the user is conducting a 2G voice call. Correspondingly, the fact that the power amplifier 210 is not in the working state means that the power amplifier 210 of the GSM system is not in the state of transmitting radio frequency signals, that is, the user is not making a 2G voice call.

Step 104, determine a power level corresponding to the transmit power.

Wherein, according to power classes defined by the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP), different transmission powers are divided into different power classes (Power Class Levels, PCL). Exemplarily, the maximum transmission power of PCL5 is 33dBm, the maximum transmission power of PCL6 is 31dBm, the maximum transmission power of PCL7 is 29dBm, and so on. Further, different communication frequency bands correspond to different power level ranges, for example, GSM850 and GSM900 are low-frequency power levels, and the corresponding power levels are PCL5 to PCL19. By obtaining the power level corresponding to the transmission power, in the subsequent analysis and control steps, it is not necessary to analyze each transmission power, but only to analyze the corresponding power level, so as to ensure the accuracy of frequency control Under this condition, the amount of data to be processed is effectively reduced, thereby improving the processing efficiency of the frequency control method.

Step 106, control the voltage converter 300 to switch to the working frequency corresponding to the power level, the voltage converter 300 is used to supply power to the power amplifier 210 at the working frequency.

Among them, the working frequency corresponding to the power level refers to the working frequency that will not cause intermodulation interference with the current power level, so as to suppress the problem of intermodulation interference and improve the call quality. In the embodiment of this application, the definition is the same as the current The working frequency corresponding to the power level is the target working frequency. Moreover, compared with the currently commonly used processing method of reducing the radio frequency input power of the GSM system to reduce the amplitude of the intermodulation interference signal, this embodiment does not need to sacrifice the transmission power, thereby effectively ensuring the maximum strength of the uplink signal in communication.

Further, the step of controlling the voltage converter 300 to switch to the operating frequency corresponding to the power level may be implemented in the following manner: if the current operating frequency is the same as the target operating frequency, it means that no intermodulation interference will occur currently , there is no need to output any signal to change the operating frequency of the voltage converter 300; if the current operating frequency is different from the target operating frequency, it means that intermodulation interference may occur at present, and a control signal needs to be output accordingly to instruct the voltage converter 300 Switch to target operating frequency. By outputting the signal according to different situations, the frequency of the output signal can be reduced to a certain extent, thereby reducing the power consumption of the communication device. In other embodiments, the target operating frequency may be directly output to the voltage converter 300 without distinguishing the situation, so as to realize simpler control logic.

In this embodiment, through steps 102 to 106, the operating frequency of the voltage converter 300 can be effectively adjusted according to the operating state of the communication system and the corresponding transmission power, thereby suppressing the intermodulation between the communication system and the voltage converter 300 Interference phenomena, improve the communication quality of the communication system, and improve the communication experience of users.

FIG. 2 is a second flowchart of a frequency control method according to an embodiment. Referring to FIG. 2 , in this embodiment, the frequency control method includes steps 202 to 206 .

Step 202, when the power amplifier 210 is in the working state, control the voltage converter 300 to switch to the frequency hopping power supply state, and obtain the transmission power of the power amplifier 210;

Step 204, determining a power level corresponding to the transmit power;

Step 206, control the voltage converter 300 to switch to the working frequency corresponding to the power level, and the voltage converter 300 is used to supply power to the power amplifier 210 at the working frequency.

Wherein, the implementation manners of steps 204 to 206 are the same as the implementation manners of steps 104 to 106 in the embodiment of FIG. 1 , and will not be repeated here. Step 202 further includes: before acquiring the transmitting power of the power amplifier 210, controlling the voltage converter 300 to switch to a frequency hopping power supply state. In this embodiment, the voltage converter 300 is configured with two power supply states, namely a fixed frequency power supply state and a frequency hopping power supply state. The fixed frequency power supply state means that the voltage converter 300 works at a fixed frequency to output the power supply voltage to the power amplifier 210 . The frequency hopping power supply state means that the voltage converter 300 hops between different frequencies and outputs the power supply voltage to the power amplifier 210 under the control of the frequency control device 100 to avoid intermodulation interference with the power amplifier 210 .

Further, the frequency hopping control of the voltage converter 300 can be realized by outputting a frequency hopping signal to the voltage converter 300, and the frequency hopping signal can carry the information of the target operating frequency, then the voltage converter 300 can, after receiving the frequency hopping signal, Jump to the corresponding target operating frequency under the instruction of the frequency hopping signal. It can be understood that when the voltage converter 300 is working in the state of frequency hopping power supply, it is necessary to keep the receiving channel of the frequency hopping signal open, so as to ensure that the voltage converter 300 can receive the frequency hopping signal in time, but keep the receiving channel continuously Turning it on will greatly increase power consumption, thereby affecting the battery life of communication devices. Therefore, in this embodiment, by configuring two power supply states for the voltage converter 300, the voltage converter 300 can close the receiving channel of the frequency hopping signal when it is in the fixed frequency power supply state, thereby reducing power consumption, and when frequency hopping is required Switch to frequency hopping power supply state to provide better communication quality and improve user experience.

FIG. 3 is the third flow chart of the frequency control method of an embodiment. In this embodiment, it will be described in conjunction with the working state being a 2G call state. Steps 302 to 310 of the frequency control method of this embodiment.

Step 302, when the power amplifier 210 is in the working state, control the voltage converter 300 to switch to the frequency hopping power supply state, and obtain the transmission power of the power amplifier 210;

Step 304, determining a power level corresponding to the transmit power;

Step 306, control the voltage converter 300 to switch to the working frequency corresponding to the power level, the voltage converter 300 is used to supply power to the power amplifier 210 at the working frequency.

Wherein, the implementation manners of steps 302 to 306 are the same as the implementation manners of steps 202 to 206 in the embodiment of FIG. 2 , and will not be repeated here.

Step 308 , detecting whether the power amplifier 210 is still in the 2G call state at intervals of preset time intervals.

Wherein, the power amplifier 210 is configured with a 2G call state and a call disconnected state. When the user is making a voice call, the power amplifier 210 is in a 2G call state, that is, continuously sending radio frequency output signals. After the user hangs up the voice call, the power amplifier 210 is in a disconnected state, and the power amplifier 210 stops sending radio frequency output signals. Therefore, the power supply state of the voltage converter 300 can be controlled by detecting whether the power amplifier 210 is still in the 2G call state to determine whether the user is still making a voice call.

Further, the preset time period may be pre-configured in the frequency control device 100, so that the state detection is performed at intervals of the preset time period. It can be understood that the shorter the preset time, the higher the detection frequency, and more accurate adjustment of the power supply state of the voltage converter 300 can be performed; the longer the preset time, the lower the detection frequency and the lower the energy consumption, which can be Effectively improve the battery life of communication equipment. Therefore, an appropriate preset duration can be set according to the type of communication device, battery capacity, and the like. Furthermore, the communication device can also automatically adjust the preset duration according to information such as the current power, so as to improve battery life.

Step 310, when the power amplifier 210 is still in the 2G call state, continue to execute the step of acquiring the transmit power of the power amplifier 210.

It can be understood that, even if the user is still in the call state, any change in the call scene may lead to a change in the transmit power of the power amplifier 210. Therefore, by repeating steps 302 to 306, the voltage converter 300 The working frequency is adjusted to achieve real-time follow-up of the transmit power, thereby further improving the call quality.

Exemplarily, the change of the transmission power of the power amplifier 210 may be related to the strength of the base station signal received by the communication device. Specifically, when the base station signal received by the communication device is strong, the transmission power of the radio frequency output signal of the communication device will increase to ensure the communication quality; when the base station signal received by the communication device is weak, the transmission power of the communication device will increase to reduce the power consumption of the radio frequency component 200. For example, in the communication equipment, there are three gears for the transmission power of the radio frequency, and the higher the gear, the higher the transmission power of the radio frequency output signal; there are also three gears for the detection of the base station signal, and the higher the gear of the detected base station signal, the higher the power. It means that the base station signal is stronger. Therefore, when it is detected that the signal strength of the base station is at the first level, set the transmission power of the radio frequency output signal to the third level; when it is detected that the signal strength of the base station is at the second level, set the transmission power of the radio frequency output signal to the second level gear; when it is detected that the signal strength of the base station is the third gear, set the transmit power of the RF output signal to the first gear.

In another exemplary embodiment, the change of the transmission power of the power amplifier 210 may also be related to the current power level of the communication device. Specifically, when the current power of the communication device is high, the transmission power of the radio frequency output signal of the communication device will be increased to ensure the quality of communication; when the current power of the communication device is low, the transmission power of the communication device will be reduced to reduce the 200 power consumption. For example, in the communication device, there are three levels for the transmission power of the radio frequency. The higher the level, the higher the transmission power of the radio frequency output signal; there are also three levels for the current power. The higher the level, the more the current power. Therefore, when it is detected that the current power level is the first level, the transmission power of the radio frequency output signal is set to the first level; when the current power level is detected to be the second level, the transmission power of the radio frequency output signal is set to the second level; When it is detected that the current power level is the third level, set the transmit power of the RF output signal to the third level.

FIG. 4 is a fourth flowchart of a frequency control method according to an embodiment. Referring to FIG. 4 , in this embodiment, the frequency control method includes steps 402 to 410 .

Step 402, when the power amplifier 210 is in the working state, control the voltage converter 300 to switch to the frequency hopping power supply state, and obtain the transmission power of the power amplifier 210;

Step 404, determining a power level corresponding to the transmit power;

Step 406, control the voltage converter 300 to switch to the working frequency corresponding to the power level, the voltage converter 300 is used to supply power to the power amplifier 210 at the working frequency;

Step 408, when the power amplifier 210 is switched from the 2G call state to the call disconnected state, control the voltage converter 300 to switch to a fixed frequency power supply state.

Wherein, the implementation manners of steps 402 to 408 are the same as the implementation manners of steps 302 to 308 in the embodiment of FIG. 3 , and will not be repeated here.

Step 410, when the power amplifier 210 is switched from the 2G call state to the call disconnected state, control the voltage converter 300 to switch to a fixed frequency power supply state.

Specifically, by switching the voltage converter 300 to the fixed frequency power supply state, the receiving channel of the frequency hopping signal of the voltage converter 300 can be closed, and when the voltage converter 300 is in the fixed frequency power supply state, the voltage converter only needs to be passively The switching signal of the power supply state is received, thereby reducing the power consumption of the communication equipment, thereby improving the battery life of the communication equipment.

FIG. 5 is a fifth flowchart of a frequency control method in an embodiment. The frequency control method in this embodiment combines the implementations in FIG. 3 and FIG. 4 , and specifically includes steps 502 to 510.

Step 502, when the power amplifier 210 is in the working state, control the voltage converter 300 to switch to the frequency hopping power supply state, and obtain the transmission power of the power amplifier 210;

Step 504, determining a power level corresponding to the transmission power;

Step 506, control the voltage converter 300 to switch to the working frequency corresponding to the power level, the voltage converter 300 is used to supply power to the power amplifier 210 at the working frequency;

Step 508, when the power amplifier 210 is switched from the 2G call state to the call disconnected state, control the voltage converter 300 to switch to a fixed frequency power supply state.

If yes, continue to execute step 504 .

If not, step 510 is executed to control the voltage converter 300 to switch to a fixed frequency power supply state.

Wherein, for the implementation manner determined in step 508, reference may be made to the implementation manners of the corresponding embodiments in FIG. 3 and FIG. 4 , and details are not repeated here.

FIG. 6 is a sixth flowchart of a frequency control method according to an embodiment. Referring to FIG. 6 , in this embodiment, the frequency control method includes steps 602 to 612 .

Step 602, when the power amplifier 210 is in the working state, control the voltage converter 300 to switch to the frequency hopping power supply state, and obtain the transmission power of the power amplifier 210;

Step 604, determining a power level corresponding to the transmit power;

Step 606: Obtain a target operating mode corresponding to the power level according to a mode mapping table, the mode mapping table including a one-to-one mapping relationship between multiple power levels and multiple target operating modes;

Step 608 , generating and outputting a frequency hopping signal carrying information of the target working mode, where the frequency hopping signal is used to instruct the voltage converter 300 to switch to the working frequency corresponding to the target working mode.

Step 610, when the power amplifier 210 is switched from the 2G call state to the call disconnected state, control the voltage converter 300 to switch to a fixed frequency power supply state.

If yes, continue to execute step 604 .

If not, step 612 is executed to control the voltage converter 300 to switch to a fixed frequency power supply state.

Wherein, the implementation of steps 602 to 604 is the same as the implementation of steps 502 to 504 in the embodiment of FIG. 5 , and the implementation of steps 610 to 612 is the same as the implementation of steps 508 to 510 in the embodiment of FIG. 5 , No more details are given here. Specifically, in this embodiment, the step 506 of controlling the voltage converter 300 to switch to the operating frequency corresponding to the power level specifically includes steps 606 to 608 .

Table 1 is a GSM low-frequency mode mapping table. Referring to Table 1, as mentioned above, GSM low-frequency includes a plurality of power levels from PCL5 to PCL19, and the power level, the operating mode of the voltage converter 300 and the operating frequency of the voltage converter 300. There is a one-to-one mapping relationship between them. For example, when the power level of the transmit power of the power amplifier 210 is PCL7, the corresponding working mode of the voltage converter 300 is 2, and the working frequency is 400kHz, and the frequency hopping signal only needs to send the frequency hopping signal carrying the working mode 2 information to the voltage Converter 300 is enough. It can be understood that when only the working mode information is sent, the frequency hopping signal needs to carry less information, and the frequency hopping signal is less prone to errors during transmission and has higher reliability.

Table 1 LUT mapping table

GSM LB power class PCL 5 PCL6 PCL 7 … PCL19 Working Modes of Voltage Converter 300 0 1 2 14 The operating frequency of the voltage converter 300 500KHz 500KHz 400KHz … 200KHz

Furthermore, the mapping table can be obtained through pre-commissioning, that is, the communication device will be debugged before leaving the factory to determine the working mode of the voltage converter 300 with the least interference with each power level, and pass the debugging results through the mapping table It is preset in the communication device, so that the communication device can determine the best working mode according to different power levels, and obtain better communication quality. Furthermore, different mapping tables can be preset for different radio frequency schemes to improve the accuracy of the mapping table. Different radio frequency schemes can include, but are not limited to, different radio frequency architectures, different types of antennas, and different signal transmission methods. wait.

Table 2 is a comparison table of modulation spectrum indicators obtained based on the frequency hopping control method of the embodiment of the present application, wherein M400k and P400k are test items specified in 3GPP standards to reflect the modulation spectrum indicators of communication equipment. The 3GPP regulatory standard is -60dB. The smaller the test result, the better the performance. Referring to the test results before and after frequency hopping in Table 2, it can be seen that the modulation spectrum index of communication equipment has been significantly improved. Moreover, referring to the "Boost" column in Table 2, it can be seen that by adopting the frequency hopping control method of the embodiment of the present application, the maximum boost value of the test result is nearly 7dB, and the margin is stable. Based on the test results in Table 2, it can be seen that the frequency hopping control method of the embodiment of the present application can effectively avoid the compliance risk of the radio frequency index, improve the radio frequency performance of the communication device, and thus ensure the user experience of the communication device user.

Table 2 Modulation spectrum index comparison table unit (dB)

It should be understood that although the various steps in the flow charts of FIG. 1 to FIG. 6 are displayed sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in FIGS. 1 to 6 may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but may be performed at different times. These sub-steps or The execution order of the stages is not necessarily performed sequentially, but may be executed alternately or alternately with at least a part of other steps or substeps of other steps or stages.

FIG. 7 is a structural block diagram of a frequency control device 100 according to an embodiment. Referring to FIG. 7 , in this embodiment, the frequency control device 100 includes a power acquisition module 110 , a level acquisition module 120 and a switching module 130 .

The power acquisition module 110 is used to acquire the transmission power of the power amplifier 210 when the power amplifier 210 is in the working state; the level acquisition module 120 is used to determine the power level corresponding to the transmission power; the switching module 130 is used to control the voltage conversion The converter 300 is switched to the operating frequency corresponding to the power level, and the voltage converter 300 is used to supply power to the power amplifier 210 at the operating frequency.

It should be noted that the division of each module in the above frequency control device 100 is only for illustration, in other embodiments, the frequency control device 100 can be divided into different modules according to needs, so as to complete all the above frequency control device 100 or some functions.

For specific limitations on the frequency control apparatus 100, reference may be made to the above-mentioned limitations on the frequency control method, and details are not repeated here. Each module in the above-mentioned frequency control device 100 may be fully or partially implemented by software, hardware or a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

FIG. 8 is one of structural block diagrams of a radio frequency system 10 according to an embodiment. Referring to FIG. 8 , the radio frequency system 10 includes a radio frequency component 200 , a voltage converter 300 and a frequency control device 100 .

The radio frequency component 200 includes a power amplifier 210, configured to transmit a radio frequency output signal when the power amplifier 210 is in a working state, and output the transmission power of the radio frequency output signal;

The voltage converter 300 is connected to the power amplifier 210 and the external battery unit respectively, and is used to convert the voltage output by the battery unit into a power supply voltage, and output the power supply voltage according to the operating frequency to supply power to the power amplifier 210 ;

The frequency control device 100 is connected to the power amplifier 210 and the voltage converter 300 respectively, and the frequency control device 100 is used to obtain the transmission power of the power amplifier 210 when the power amplifier 210 is in a working state; determine and A power level corresponding to the transmit power; controlling the voltage converter 300 to switch to an operating frequency corresponding to the power level.

In this embodiment, the operating frequency of the voltage converter 300 is controlled by the frequency control device 100, which effectively improves the signal quality of the radio frequency system 10 and provides a radio frequency system 10 with better radio frequency performance. For specific limitations on the frequency control apparatus 100, reference may be made to the above-mentioned limitations on the frequency control method, and details are not repeated here. Each module in the above-mentioned frequency control device 100 may be fully or partially implemented by software, hardware or a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.

FIG. 9 is a second structural block diagram of a radio frequency system 10 according to an embodiment. Referring to FIG. 9 , the radio frequency component 200 includes a radio frequency transceiver 220 , a power amplifier 210 and a power detector 230 .

A radio frequency transceiver 220, configured to generate a radio frequency signal;

The power amplifier 210 is connected to the radio frequency transceiver 220, and is configured to receive the radio frequency signal when in the working state, and generate the radio frequency output signal according to the radio frequency signal;

The power detector 230 is disposed on the radio frequency path of the radio frequency signal and connected to the frequency control device 100 for detecting and outputting the transmit power of the radio frequency signal.

Wherein, the frequency control device 100 may be configured with a coupling output port, the frequency control device 100 includes a coupler, the coupler is arranged on the transmission channel of the radio frequency signal, and is used to couple the radio frequency signal transmitted by the transmission channel, so as to pass through the The coupling end of the coupler outputs a coupling signal, and the coupling signal is used for transmission to the coupling output port, thereby realizing accurate sensing of the transmission power of the radio frequency signal, and further based on the amplification factor of the power amplifier 210 and the transmission of the radio frequency signal Power Gets the transmit power of the RF output signal. The coupled signal can be used to measure the forward coupled power and reverse coupled power of the RF signal. Among them, based on the forward coupling signal output by the coupling end, the radio frequency signal or the forward power information of the radio frequency signal can be detected; based on the reverse coupling signal output by the coupling end, the radio frequency signal or the reverse power information of the radio frequency signal can be detected correspondingly, and Define the detection mode as reverse power detection mode.

FIG. 10 is a third structural block diagram of a radio frequency system 10 according to an embodiment. Referring to FIG. 10 , the radio frequency component 200 includes a radio frequency transceiver 220 , a power amplifier 210 and a power detector 230 .

A radio frequency transceiver 220, configured to generate a radio frequency signal;

The power amplifier 210 is connected to the radio frequency transceiver 220, and is configured to receive the radio frequency signal when in the working state, and generate the radio frequency output signal according to the radio frequency signal;

The power detector 230 is disposed on the radio frequency path of the radio frequency output signal and connected to the frequency control device 100 for detecting and outputting the transmit power of the radio frequency output signal.

The radio frequency transceiver 220 of the present embodiment, the arrangement mode of power amplifier 210 and power detector 230 are similar, and difference is only that power detector 230 is arranged on the radio frequency path of radio frequency output signal, to directly obtain the transmission power of radio frequency output signal, therefore , for a specific implementation manner, reference may be made to the embodiment in FIG. 9 , and details are not repeated here.

Further, the radio frequency component 200 may include but not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, and the like. In addition, the radio frequency component 200 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile Communication (Global System of Mobile communication, GSM), General Packet Radio Service (General Packet Radio Service, GPRS), Code Division Multiple Access (Code Division Multiple Access, CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (Long Term Evolution, LTE), email, Short Messaging Service (Short Messaging Service, SMS), etc. In one embodiment, the frequency control device 100 is integrated into the radio frequency transceiver 220 . Through the above arrangement, the integration level of the radio frequency system 10 can be effectively improved, so as to provide a communication device with a small volume and light weight. In other embodiments, the frequency control apparatus 100 may also be integrated into a baseband processor or a main processor of a communication device.

Continuing to refer to FIG. 8 to FIG. 10 , the embodiment of the present application also provides a communication device, the communication device includes the above radio frequency system 10 and a battery unit, and the battery unit is connected to the voltage converter 300 in the radio frequency system 10 , used to provide voltage for the voltage converter 300 .

Fig. 11 is a schematic diagram of the internal structure of a communication device according to an embodiment. As shown in FIG. 11, the communication device includes a processor and a memory connected through a system bus. Among them, the processor is used to provide calculation and control capabilities, and support the operation of the entire communication device. The memory may include non-volatile storage media and internal memory. Nonvolatile storage media store operating systems and computer programs. The computer program can be executed by a processor, so as to implement a frequency control method provided in each of the following embodiments. The internal memory provides a high-speed running environment for the operating system computer program in the non-volatile storage medium. The communication device may be any terminal device such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant, personal digital assistant), a POS (Point of Sales, sales terminal), a vehicle-mounted computer, or a wearable device.

The embodiment of the present application also provides a computer-readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the frequency control method.

Any reference to memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Nonvolatile memory can include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in many forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchronous Synchlink DRAM (SLDRAM), Memory Bus (Rambus) Direct RAM (RDRAM), Direct Memory Bus Dynamic RAM (DRDRAM), and Memory Bus Dynamic RAM (RDRAM).

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the scope of the patent for the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concepts of the embodiments of the present application, and these all belong to the protection scope of the embodiments of the present application. Therefore, the scope of protection of the embodiment patent of this application should be based on the appended claims.

Claims (10)

1. A frequency control method, characterized in that the method comprises: When the power amplifier is in the 2G call state, control the voltage converter to switch to the frequency hopping power supply state to obtain the transmission power of the power amplifier; determining a power level corresponding to the transmission power; controlling a voltage converter to switch to an operating frequency corresponding to the power level, the voltage converter for powering the power amplifier at the operating frequency; When the power amplifier is switched from the 2G call state to the call disconnected state, the voltage converter is controlled to switch to the fixed frequency power supply state. 2. The frequency control method according to claim 1, wherein the frequency control method further comprises: Detecting whether the power amplifier is still in the 2G call state at intervals of a preset duration; When the power amplifier is still in the 2G call state, continue to execute the step of acquiring the transmit power of the power amplifier. 3. The frequency control method according to claim 2, wherein the frequency control method further comprises: When the power amplifier is switched from the 2G call state to the call disconnected state, the voltage converter is controlled to switch to the fixed frequency power supply state. 4. The frequency control method according to claim 1, wherein the controlling the voltage converter to switch to the operating frequency corresponding to the power level comprises: Obtaining a target operating mode corresponding to the power level according to a mode mapping table, the mode mapping table including a one-to-one mapping relationship between multiple power levels and multiple target operating modes; generating and outputting a frequency hopping signal carrying the target operating mode information, the frequency hopping signal being used to instruct the voltage converter to switch to an operating frequency corresponding to the target operating mode. 5. A frequency control device, characterized in that, comprising: The power acquisition module is used to control the voltage converter to switch to the frequency hopping power supply state when the power amplifier is in the 2G call state, so as to obtain the transmission power of the power amplifier; A level acquisition module, configured to determine a power level corresponding to the transmit power; A switching module, configured to control a voltage converter to switch to an operating frequency corresponding to the power level, and the voltage converter is used to supply power to the power amplifier at the operating frequency; when the power amplifier is in the 2G call state When switching to the call disconnected state, the voltage converter is controlled to switch to the fixed frequency power supply state. 6. A radio frequency system, characterized in that the radio frequency system comprises: A radio frequency component, including a power amplifier, configured to transmit a radio frequency output signal when the power amplifier is in a working state, and output the transmission power of the radio frequency output signal; A voltage converter, connected to the power amplifier and an external battery unit, is used to convert the voltage output by the battery unit into a power supply voltage, and output the power supply voltage according to the operating frequency to supply power to the power amplifier; The frequency control device is connected to the power amplifier and the voltage converter respectively, and the frequency control device is used to control the voltage converter to switch to the frequency hopping power supply state when the power amplifier is in the 2G call state, and obtain the The transmit power of the power amplifier; determine the power level corresponding to the transmit power; control the voltage converter to switch to the operating frequency corresponding to the power level; when the power amplifier is switched from the 2G call state to the call disconnected state , controlling the voltage converter to switch to a fixed frequency power supply state. 7. The radio frequency system according to claim 6, wherein the radio frequency component comprises: a radio frequency transceiver for generating a radio frequency signal; The power amplifier is connected to the radio frequency transceiver, and is used to receive the radio frequency signal when in the working state, and generate the radio frequency output signal according to the radio frequency signal; The power detector is arranged on the radio frequency path of the radio frequency signal and connected with the frequency control device, and is used for detecting and outputting the transmission power of the radio frequency signal. 8. The radio frequency system according to claim 6, wherein the radio frequency component comprises: a radio frequency transceiver for generating a radio frequency signal; The power amplifier is connected to the radio frequency transceiver, and is used to receive the radio frequency signal when in the working state, and generate the radio frequency output signal according to the radio frequency signal; The power detector is arranged on the radio frequency path of the radio frequency output signal and connected with the frequency control device, and is used for detecting and outputting the transmission power of the radio frequency output signal. 9. The radio frequency system according to claim 7 or 8, wherein the frequency control device is integrated in the radio frequency transceiver. 10. A communication device, characterized in that the communication device comprises: A radio frequency system as claimed in any one of claims 6 to 9; The battery unit is connected with the voltage converter in the radio frequency system.

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