CN112469112A - Frequency control method, device, radio frequency system and communication equipment - Google Patents

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

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Publication number
CN112469112A
CN112469112A CN202011343676.2A CN202011343676A CN112469112A CN 112469112 A CN112469112 A CN 112469112A CN 202011343676 A CN202011343676 A CN 202011343676A CN 112469112 A CN112469112 A CN 112469112A
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China
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power
frequency
radio frequency
power amplifier
voltage converter
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CN202011343676.2A
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CN112469112B (en
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林毅
许文华
尹钢
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Oppo Chongqing Intelligent Technology Co Ltd
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Oppo Chongqing Intelligent Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

The embodiment of the application relates to a frequency control method, a frequency control device, a radio frequency system and communication equipment, wherein the frequency control method comprises the following steps: when a power amplifier is in a working state, acquiring the transmitting power of the power amplifier and determining the power level corresponding to the transmitting power; and controlling a voltage converter to be switched to an operating frequency corresponding to the power grade, wherein the voltage converter is used for supplying power to the power amplifier at the operating frequency. Through the steps, the working frequency of the voltage converter can be effectively adjusted according to the running state and the response transmitting power of the communication system, so that the intermodulation interference phenomenon between the communication system and the voltage converter is suppressed, the communication quality of the communication system is improved, and the communication experience of a user is improved.

Description

Frequency control method, device, radio frequency system and communication equipment
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a frequency control method, a frequency control device, a radio frequency system and communication equipment.
Background
With the increasingly powerful functions of communication equipment, the power consumption is increasingly serious, so that the standby time is gradually shortened, and the communication equipment becomes an optimal means for solving the power consumption problem under the condition that the user increasingly pays attention to the standby time. Accordingly, a battery module of a communication device is usually configured with a higher input/output voltage to implement a fast charging function. However, when the battery module supplies power to other devices in the communication device, the battery module interferes with the communication of the communication system, and the communication quality of the communication system is greatly affected.
Disclosure of Invention
The embodiment of the application provides a frequency control method, a frequency control device, a radio frequency system and communication equipment, which can inhibit the influence of a battery module on a communication system and improve the communication quality.
A method of frequency control, the method comprising:
when the power amplifier is in a working state, acquiring the transmitting power of the power amplifier;
determining a power level corresponding to the transmit power;
and controlling a voltage converter to be switched to an operating frequency corresponding to the power grade, wherein the voltage converter is used for supplying power to the power amplifier at the operating frequency.
A frequency control device, comprising:
the power acquisition module is used for acquiring the transmitting power of the power amplifier when the power amplifier is in a working state;
a grade obtaining module, configured to determine a power grade corresponding to the transmission power;
and the switching module is used for controlling the voltage converter to switch to the working frequency corresponding to the power grade, and the voltage converter is used for supplying power to the power amplifier by using the working frequency.
A radio frequency system, the radio frequency system comprising:
the radio frequency assembly comprises a power amplifier, a first frequency divider and a second frequency divider, wherein the power amplifier is used for transmitting a radio frequency output signal and outputting the transmission power of the radio frequency output signal when the power amplifier is in a working state;
the voltage converter is respectively connected with the power amplifier and an external battery unit and is used for converting the voltage output by the battery unit into a power supply voltage and outputting the power supply voltage according to working frequency to supply power to the power amplifier;
the frequency control device is respectively connected with the power amplifier and the voltage converter and is used for acquiring the transmitting power of the power amplifier when the power amplifier is in a working state; determining a power level corresponding to the transmit power; and controlling the voltage converter to switch to the working frequency corresponding to the power grade.
A communication device, the communication device comprising:
the radio frequency system as described above;
and the battery unit is connected with a voltage converter in the radio frequency system.
The frequency control method, the frequency control device, the radio frequency system and the communication equipment comprise the following steps: when a power amplifier is in a working state, acquiring the transmitting power of the power amplifier and determining the power level corresponding to the transmitting power; and controlling a voltage converter to be switched to an operating frequency corresponding to the power grade, wherein the voltage converter is used for supplying power to the power amplifier at the operating frequency. Through the steps, the working frequency of the voltage converter can be effectively adjusted according to the running state and the response transmitting power of the communication system, so that the intermodulation interference phenomenon between the communication system and the voltage converter is suppressed, the communication quality of the communication system is improved, and the communication experience of a user is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart illustrating a frequency control method according to an embodiment;
FIG. 2 is a second flowchart of a frequency control method according to an embodiment;
FIG. 3 is a third flowchart of a frequency control method according to 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 according to an embodiment;
FIG. 7 is a block diagram of a frequency control apparatus according to an embodiment;
FIG. 8 is a block diagram of an exemplary RF system;
FIG. 9 is a second block diagram of the RF system according to an embodiment;
FIG. 10 is a third block diagram of an exemplary RF system;
fig. 11 is a schematic internal structure diagram of a communication device according to an embodiment.
Element number description:
a radio frequency system: 10; a frequency control device: 100, respectively; a power acquisition module: 110; a grade acquisition module: 120 of a solvent; a switching module: 130, 130; a radio frequency component: 200 of a carrier; a power amplifier: 210; a radio frequency transceiver: 220, 220; a power detector: 230; a voltage converter: 300, respectively; battery voltage: 20.
Detailed Description
To facilitate an understanding of the embodiments of the present application, the embodiments of the present application will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. The embodiments of the present application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application belong. The terminology used herein in the description of the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of 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 the embodiments of the present application is described by taking the frequency control apparatus 100 operating in a communication device as an example, and specifically, the frequency control apparatus 100 may be a processor having a digital signal processing function. The communication device may be an electronic device with a communication function, such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, a wearable device, and the like.
It can be understood that, in the above communication apparatus, the high-voltage battery unit with two battery cores may be used to perform charging and discharging to implement the function of high-voltage quick charging, where charging refers to charging the high-voltage battery unit through an adapter, a charging contact, and the like, and discharging refers to supplying power to other devices in the communication apparatus by the high-voltage battery unit. The voltage converter 300 performs voltage conversion based on a capacitance plus diode charging and discharging and voltage stabilizing mechanism, so that a large amount of low-frequency interference is generated in the conversion process, and the frequency of a low-frequency interference signal is generally varied from 100KHz to 50 MHz. Further, when the voltage converter 300 supplies power to the power amplifier 210 of the communication system, the voltage converter 300 with the low frequency interference signal outputs VCC power to the power amplifier 210. Due to the fact that the system has the physical phenomenon of intermodulation, intermodulation interference is generated after the low-frequency interference signal and the main radio frequency signal are subjected to intermodulation, partial radio frequency indexes of communication are caused, and user experience is influenced.
Fig. 1 is a flowchart of a frequency control method according to an embodiment, and referring to fig. 1, in the embodiment, the frequency control method includes steps 102 to 106.
Step 102, when the power amplifier 210 is in an operating state, acquiring the transmission power of the power amplifier 210.
The power amplifier 210 of the present embodiment is a power amplifier 210 of a communication System, for example, a power amplifier 210 of a Global System for Mobile Communications (GSM) System, and a GSM System of a communication device may be used to implement a call function, so that when cross-modulation interference occurs between an operating frequency of the voltage converter 300 and the GSM System, radio frequency indexes such as a modulation spectrum and Rx noise of the GSM System are affected by degradation, thereby affecting experience of a user in a call process.
It can be understood that the intermodulation interference between the GSM system and the operating frequency of the voltage converter 300 is serious, and therefore the embodiments of the present application are described with emphasis on the GSM system as an example. In other embodiments, the communication system also includes, but is not limited to, a wireless fidelity (WIFI) system, a Global Positioning System (GPS) system, a Long Time Evolution (LTE) system, and the like. Further, if two communication systems exist in the communication device for communication at the same time, the control method of the present embodiment may also be used to avoid the communication frequencies of the two communication systems at the same time, so as to achieve a better communication effect.
Specifically, taking the communication system as a GSM system as an example, the power amplifier 210 is in an operating state, which means that the power amplifier 210 of the GSM system is in a state of transmitting a radio frequency signal, that is, the user is performing a 2G voice call. Accordingly, the power amplifier 210 is not in an operating state, which means that the power amplifier 210 of the GSM system is not in a state of transmitting radio frequency signals, i.e. the user is not engaged in a 2G voice call.
And 104, determining a power level corresponding to the transmitting power.
Wherein the different transmission powers are divided into different Power Classes (PCL) according to Power classes defined by the 3rd Generation Partnership Project (3 GPP). Illustratively, the maximum launch power of PCL5 is 33dBm, the maximum launch power of PCL6 is 31dBm, the maximum launch power of PCL7 is 29dBm, and so on. Further, different communication bands correspond to different power class ranges, e.g. GSM850, GSM900 low frequency power classes, corresponding to power classes PCL5 to PCL 19. By acquiring the power grade corresponding to the transmitting power, in the subsequent analysis and control steps, each transmitting power does not need to be analyzed, and only the corresponding power grade needs to be analyzed, so that the data volume needing to be processed is effectively reduced on the premise of ensuring the accuracy of frequency control, and the processing efficiency of the frequency control method is improved.
Step 106, controlling the voltage converter 300 to switch to an operating frequency corresponding to the power class, where the voltage converter 300 is configured to supply power to the power amplifier 210 at the operating frequency.
In the embodiment of the present application, the working frequency corresponding to the power class is defined as a target working frequency, where the working frequency does not generate intermodulation interference with the current power class, so as to suppress the problem of intermodulation interference and improve the call quality. Compared with the currently common processing method for reducing the radio frequency input power of the GSM system so as to reduce the amplitude of the intermodulation interference signal, the embodiment does not need to sacrifice the transmission power, so that the maximum strength of the uplink signal in communication is effectively ensured.
Further, the step of controlling the voltage converter 300 to switch to the operating frequency corresponding to the power level may be implemented by: if the current operating frequency is the same as the target operating frequency, it indicates that no intermodulation interference occurs, and 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 indicates that the cross-modulation interference may occur, and accordingly a control signal needs to be output to instruct the voltage converter 300 to switch to the target operating frequency. By outputting signals according to different conditions, the frequency of the output signals can be reduced to a certain extent, thereby reducing the power consumption of the communication equipment. In other embodiments, the target operating frequency may be directly output to the voltage converter 300 without distinguishing between the cases, so as to implement 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 and the responding transmission power of the communication system, so as to suppress the intermodulation interference phenomenon between the communication system and the voltage converter 300, improve the communication quality of the communication system, and improve the communication experience of the user.
Fig. 2 is a second flowchart of a frequency control method according to an embodiment, and referring to fig. 2, in the present embodiment, the frequency control method includes steps 202 to 206.
Step 202, when the power amplifier 210 is in a working state, controlling the voltage converter 300 to switch to a frequency hopping power supply state, and acquiring the transmission power of the power amplifier 210;
step 204, determining a power level corresponding to the transmission power;
step 206, controlling the voltage converter 300 to switch to an operating frequency corresponding to the power class, where the voltage converter 300 is configured to supply power to the power amplifier 210 at the operating frequency.
The implementation of steps 204 to 206 is the same as the implementation of steps 104 to 106 in the embodiment of fig. 1, and is not repeated here. Step 202, before obtaining the transmission power of the power amplifier 210, further includes: and controlling the voltage converter 300 to switch to the frequency hopping power supply state. In the present embodiment, the voltage converter 300 is configured with two power supply states, a fixed frequency power supply state and a frequency hopping power supply state, respectively. The fixed frequency power supply state means that the voltage converter 300 operates at a fixed frequency to output the power supply voltage to the power amplifier 210. The frequency hopping power supply state is that the voltage converter 300 performs a hopping operation between different frequencies under the control of the frequency control device 100 and outputs a power supply voltage to the power amplifier 210 so as to avoid an intermodulation interference with the power amplifier 210.
Further, the frequency hopping control of the voltage converter 300 may be implemented by outputting a frequency hopping signal to the voltage converter 300, where the frequency hopping signal may carry information of the target operating frequency, and the voltage converter 300 may jump to the corresponding target operating frequency under the instruction of the frequency hopping signal after receiving the frequency hopping signal. It can be understood that when the voltage converter 300 operates in the frequency hopping power supplying state, the receiving channel of the frequency hopping signal needs to be kept on to ensure that the voltage converter 300 can receive the frequency hopping signal in time, but the continuous on of the receiving channel greatly increases power consumption, thereby affecting the endurance of the communication device. 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 in the fixed frequency power supply state, so as to reduce power consumption, and switch to the frequency hopping power supply state when frequency hopping is needed, so as to provide better communication quality and improve user experience.
Fig. 3 is a third flowchart of the frequency control method according to the embodiment, specifically describing, in this embodiment, with reference to the working state being the 2G call state, steps 302 to 310 of the frequency control method according to the embodiment.
Step 302, when the power amplifier 210 is in a working state, controlling the voltage converter 300 to switch to a frequency hopping power supply state, and acquiring the transmission power of the power amplifier 210;
step 304, determining a power level corresponding to the transmission power;
step 306, controlling the voltage converter 300 to switch to an operating frequency corresponding to the power class, where the voltage converter 300 is configured to supply power to the power amplifier 210 at the operating frequency.
The implementation of steps 302 to 306 is the same as the implementation of steps 202 to 206 in the embodiment of fig. 2, and is not repeated here.
Step 308, detecting whether the power amplifier 210 is still in the 2G call state at a preset time interval.
Wherein the power amplifier 210 is configured with a 2G talk state and a talk off state. When the user performs a voice call, the power amplifier 210 is in a 2G call state, that is, continuously transmits the radio frequency output signal, and after the user hangs up the voice call, the power amplifier 210 is in a call disconnection state, and the power amplifier 210 stops transmitting the radio frequency output signal. 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 performing a voice call.
Further, the preset time period may be configured in the frequency control apparatus 100 in advance, 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 is, and the more accurate the power supply state of the voltage converter 300 can be adjusted; the longer the preset time is, the lower the detection frequency is and the lower the energy consumption is, and the cruising ability of the communication equipment can be effectively improved. Therefore, an appropriate preset time period can be set according to the type of the communication apparatus, the battery capacity, and the like. Furthermore, the communication equipment can automatically adjust the preset duration according to the current electric quantity and other information so as to improve the cruising ability.
Step 310, when the power amplifier 210 is still in the 2G call state, continuing to execute the step of obtaining the transmission power of the power amplifier 210.
It is understood that even though the user is still in a call state, a change in any condition in the call scenario may cause a change in the transmission power of the power amplifier 210, and therefore, the operation frequency of the voltage converter 300 may be adjusted by repeating steps 302 to 306 to achieve real-time following of the transmission power, thereby further improving the call quality.
Illustratively, the change in the transmit 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 is increased to ensure the communication quality; when the base station signal received by the communication device is weak, the communication device transmit power will be reduced to reduce the power consumption of the radio frequency assembly 200. For example, in the communication device, the transmission power of the radio frequency can be set to three gears, and the higher the gear is, the higher the transmission power of the radio frequency output signal is; the detection of the base station signal is also provided with three gears, and the higher the gear of the detected base station signal is, the stronger the base station signal is. Therefore, when the signal intensity of the base station is detected to be 1 st gear, the transmitting power of the radio frequency output signal is set to be 3rd gear; when the base station signal strength is detected to be in the 2 nd gear, the transmitting power of the radio frequency output signal is set to be in the 2 nd gear; and when the signal intensity of the base station is detected to be in the 3rd gear, setting the transmitting power of the radio frequency output signal to be in the 1 st gear.
As another example, the change in the transmit power of the power amplifier 210 may also be related to the current power level of the communication device. Specifically, when the current electric quantity of the communication device is large, the transmission power of the radio frequency output signal of the communication device is increased to ensure the communication quality; when the current power of the communication device is low, the transmission power of the communication device is reduced to reduce the power consumption of the rf component 200. For example, in the communication device, the transmission power of the radio frequency can be set to three gears, and the higher the gear is, the higher the transmission power of the radio frequency output signal is; and setting three gears for the current electric quantity, wherein the higher the gear is, the more the current electric quantity is. Therefore, when the current electric quantity is detected to be the 1 st gear, the transmitting power of the radio frequency output signal is set to be the 1 st gear; when the current electric quantity is detected to be in the 2 nd gear, the transmitting power of the radio frequency output signal is set to be in the 2 nd gear; and when the current electric quantity is detected to be in the 3rd gear, setting the transmitting power of the radio frequency output signal to be in the 3rd gear.
Fig. 4 is a fourth flowchart of a frequency control method according to an embodiment, and referring to fig. 4, in the embodiment, the frequency control method includes steps 402 to 410.
Step 402, when the power amplifier 210 is in a working state, controlling the voltage converter 300 to switch to a frequency hopping power supply state, and acquiring the transmission power of the power amplifier 210;
step 404, determining a power level corresponding to the transmission power;
step 406, controlling the voltage converter 300 to switch to an operating frequency corresponding to the power class, where the voltage converter 300 is configured to supply power to the power amplifier 210 at the operating frequency;
step 408, when the power amplifier 210 is switched from the 2G call state to the call disconnection state, controlling the voltage converter 300 to be switched to a fixed frequency power supply state.
The implementation of steps 402 to 408 is the same as the implementation of steps 302 to 308 in the embodiment of fig. 3, and is not repeated here.
Step 410, when the power amplifier 210 is switched from the 2G call state to the call disconnection state, controlling the voltage converter 300 to be switched 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 passively receive the switching signal of the power supply state, so that the power consumption of the communication device is reduced, and the cruising ability of the communication device is improved.
Fig. 5 is a fifth flowchart of a frequency control method according to an embodiment, where the frequency control method according to the embodiment combines with the embodiments of fig. 3 and fig. 4, and specifically includes steps 502 to 510.
Step 502, when the power amplifier 210 is in a working state, controlling the voltage converter 300 to switch to a frequency hopping power supply state, and acquiring the transmission power of the power amplifier 210;
step 504, determining a power level corresponding to the transmission power;
step 506, controlling the voltage converter 300 to switch to an operating frequency corresponding to the power class, where the voltage converter 300 is configured to supply power to the power amplifier 210 at the operating frequency;
step 508, when the power amplifier 210 is switched from the 2G call state to the call disconnection state, controlling the voltage converter 300 to be switched to a fixed frequency power supply state.
If yes, go to step 504.
If not, go to step 510, control the voltage converter 300 to switch to the fixed frequency power supply state.
The implementation manner after the determination in step 508 may refer to the implementation manner of the corresponding embodiment in fig. 3 and fig. 4, and is not described herein again.
Fig. 6 is a sixth flowchart of a frequency control method according to an embodiment, and referring to fig. 6, in the embodiment, the frequency control method includes steps 602 to 612.
Step 602, when the power amplifier 210 is in a working state, controlling the voltage converter 300 to switch to a frequency hopping power supply state, and acquiring the transmission power of the power amplifier 210;
step 604, determining a power level corresponding to the transmission power;
step 606, obtaining a target working mode corresponding to the power level according to a mode mapping table, wherein the mode mapping table comprises a one-to-one mapping relation between a plurality of power levels and a plurality of target working modes;
step 608, generating and outputting a frequency hopping signal carrying the target operating mode information, where the frequency hopping signal is used to instruct the voltage converter 300 to switch to an operating frequency corresponding to the target operating mode.
Step 610, when the power amplifier 210 is switched from the 2G call state to the call disconnection state, controlling the voltage converter 300 to be switched to a fixed frequency power supply state.
If yes, go to step 604.
If not, go to step 612, control the voltage converter 300 to switch to the fixed frequency power supply state.
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, and therefore, the description thereof is omitted. Specifically, in the present embodiment, the step 506 of controlling the voltage converter 300 to switch to the operating frequency corresponding to the power class specifically includes the steps 606 to 608.
Table 1 shows a mode mapping table of GSM low frequencies, referring to table 1, as mentioned above, the GSM low frequencies include a plurality of power levels of PCL5 to PCL19, and there is a one-to-one mapping relationship between the power levels, the operation mode of the voltage converter 300 and the operation frequency of the voltage converter 300. For example, when the power level of the transmitting power of the power amplifier 210 is PCL7, the corresponding operating mode of the voltage converter 300 is 2, and the operating frequency is 400kHz, the frequency hopping signal only needs to send the frequency hopping signal carrying the operating mode 2 information to the voltage converter 300. It can be understood that, when only the working mode information is sent, the amount of information carried by the frequency hopping signal is small, errors are not easy to occur in the transmission process of the frequency hopping signal, and the reliability is high.
TABLE 1LUT mapping table
GSM LB Power class PCL 5 PCL6 PCL 7 … PCL19
Operating mode of the voltage converter 300 0 1 2 14
Operating frequency of the voltage converter 300 500KHz 500KHz 400KHz … 200KHz
Further, the mapping table may be obtained by early-stage debugging, that is, the communication device may be debugged before leaving the factory to determine the working mode of the voltage converter 300 with the smallest interference with each power class one by one, and the debugging result is preset in the communication device through the mapping table, so that the communication device may determine the optimal working mode according to different power classes, and obtain better communication quality. Still further, different mapping tables may be preset for different rf schemes, such as but not limited to different rf architectures, different types of antennas, different signal transmission modes, and the like, to improve the accuracy of the mapping table.
Table 2 is a modulation spectrum index comparison table obtained based on the frequency hopping control method in the embodiment of the present application, where M400k and P400k are both test items specified in the 3GPP standard specification to reflect the modulation spectrum index of the communication device. The regulatory standard of 3GPP is-60 dB, the smaller the test result is, the better the performance is, and the test results before and after frequency hopping in Table 2 are referred to, so that the modulation spectrum index of the communication equipment is obviously improved. In addition, referring to the column of "boost" in table 2, it can be seen that by using the frequency hopping control method of the embodiment of the present application, the maximum boost value of the test result is close to 7dB, and the margin is stable. Based on the test results in table 2, it can be known that the frequency hopping control method in the embodiment of the present application can effectively avoid the compliance risk of the radio frequency index, and improve the radio frequency performance of the communication device, thereby ensuring the user experience of the communication device user.
TABLE 2 modulation spectra index comparison Table Unit (dB)
Figure BDA0002799279490000131
It should be understood that, although the steps in the flowcharts of fig. 1 to 6 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.
Fig. 7 is a block diagram of a frequency control apparatus 100 according to an embodiment, and referring to fig. 7, in this embodiment, the frequency control apparatus 100 includes a power obtaining module 110, a rank obtaining module 120, and a switching module 130.
The power obtaining module 110 is configured to obtain the transmission power of the power amplifier 210 when the power amplifier 210 is in an operating state; the level obtaining module 120 is configured to determine a power level corresponding to the transmission power; the switching module 130 is configured to control the voltage converter 300 to switch to an operating frequency corresponding to the power class, where the voltage converter 300 is configured to supply power to the power amplifier 210 at the operating frequency.
It should be noted that the division of each module in the frequency control apparatus 100 is only for illustration, and in other embodiments, the frequency control apparatus 100 may be divided into different modules as needed to complete all or part of the functions of the frequency control apparatus 100.
For specific limitations of the frequency control apparatus 100, reference may be made to the above limitations of the frequency control method, which are not described herein again. The respective modules in the frequency control apparatus 100 may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
Fig. 8 is a block diagram of an embodiment of the radio frequency system 10, and 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.
A radio frequency component 200, including a power amplifier 210, configured to transmit a radio frequency output signal when the power amplifier 210 is in an operating state, and output a transmission power of the radio frequency output signal;
a voltage converter 300, respectively connected to the power amplifier 210 and an external battery unit, for converting a voltage output by the battery unit into a supply voltage, and outputting the supply voltage according to an operating frequency to supply power to the power amplifier 210;
the frequency control device 100 is respectively connected with the power amplifier 210 and the voltage converter 300, and the frequency control device 100 is configured to obtain the transmission power of the power amplifier 210 when the power amplifier 210 is in an operating state; determining a power level corresponding to the transmit power; the voltage converter 300 is controlled to switch to an operating frequency corresponding to the power class.
In the present embodiment, the frequency control device 100 controls the operating frequency of the voltage converter 300, so as to effectively improve the signal quality of the radio frequency system 10, and provide a radio frequency system 10 with better radio frequency performance. For specific limitations of the frequency control apparatus 100, reference may be made to the above limitations of the frequency control method, which are not described herein again. The respective modules in the frequency control apparatus 100 may be implemented in whole or in part by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
Fig. 9 is a second block diagram of the rf system 10 according to an embodiment, and referring to fig. 9, the rf component 200 includes an rf transceiver 220, a power amplifier 210, and a power detector 230.
A radio frequency transceiver 220 for generating a radio frequency signal;
the power amplifier 210 is connected to the rf transceiver 220, and configured to receive the rf signal when in the operating state, and generate the rf output signal according to the rf signal;
the power detector 230 is disposed on the rf path of the rf signal, connected to the frequency control apparatus 100, and configured to detect and output the transmission power of the rf signal.
The frequency control apparatus 100 may be configured with a coupling output port, and the frequency control apparatus 100 includes a coupler, which is disposed on a transmission channel of a radio frequency signal and is configured to couple the radio frequency signal transmitted by the transmission channel to output a coupled signal through a coupling end of the coupler, where the coupled signal is configured to be transmitted to the coupling output port, so as to achieve accurate sensing of a transmission power of the radio frequency signal, and further obtain the transmission power of the radio frequency output signal based on an amplification factor of the power amplifier 210 and the transmission power of the radio frequency signal. The coupled signal may be used to measure the forward coupled power and the reverse coupled power of the radio frequency signal. 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 terminal, the radio frequency signal or the reverse power information of the radio frequency signal can be correspondingly detected, and the detection mode is defined as a reverse power detection mode.
Fig. 10 is a third block diagram of the rf system 10 according to an embodiment, and referring to fig. 10, the rf component 200 includes an rf transceiver 220, a power amplifier 210 and a power detector 230.
A radio frequency transceiver 220 for generating a radio frequency signal;
the power amplifier 210 is connected to the rf transceiver 220, and configured to receive the rf signal when in the operating state, and generate the rf output signal according to the rf signal;
the power detector 230 is disposed on the rf path of the rf output signal, connected to the frequency control device 100, and configured to detect and output the transmission power of the rf output signal.
In the radio frequency transceiver 220 of the present embodiment, the power amplifier 210 and the power detector 230 are arranged in a similar manner, and only the difference is that the power detector 230 is arranged on the radio frequency path of the radio frequency output signal to directly obtain the transmission power of the radio frequency output signal, so that the specific implementation can refer to the embodiment of fig. 9, and details thereof are not repeated here.
Further, the radio frequency components 200 may include, but are not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency assembly 200 may also communicate with networks and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like. In one embodiment, the frequency control device 100 is integrated with the radio frequency transceiver 220. By the arrangement mode, the integration level of the radio frequency system 10 can be effectively improved, so that the communication equipment with small volume and light weight is provided. In other embodiments, the frequency control apparatus 100 may also be integrated into a baseband processor or a main processor of a communication device.
With continuing reference to fig. 8 to 10, an embodiment of the present application further provides a communication device, which includes the radio frequency system 10 as described above and a battery unit, where the battery unit is connected to the voltage converter 300 in the radio frequency system 10, and is configured to provide a voltage for the voltage converter 300.
Fig. 11 is a schematic internal structure diagram of a communication device according to an embodiment. As shown in fig. 11, the communication device includes a processor and a memory connected by a system bus. Wherein the processor is configured to provide computational and control capabilities to support the operation of the overall communication device. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by a processor for implementing a frequency control method provided in the following embodiments. The internal memory provides a cached execution environment for the operating system computer programs 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), a Point of Sales (POS), a vehicle-mounted computer, and a wearable device.
The embodiment of the 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 used herein may include non-volatile and/or volatile memory. Non-volatile 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 a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the appended claims.

Claims (11)

1. A method of frequency control, the method comprising:
when the power amplifier is in a working state, acquiring the transmitting power of the power amplifier;
determining a power level corresponding to the transmit power;
and controlling a voltage converter to be switched to an operating frequency corresponding to the power grade, wherein the voltage converter is used for supplying power to the power amplifier at the operating frequency.
2. The frequency control method according to claim 1, wherein before obtaining the transmission power of the power amplifier, the method further comprises:
and controlling the voltage converter to switch to a frequency hopping power supply state.
3. The frequency control method according to claim 1, wherein the operating state is a 2G call state, the frequency control method further comprising:
detecting whether the power amplifier is still in the 2G call state at intervals of preset duration;
when the power amplifier is still in the 2G call state, continuing to execute the step of obtaining the transmitting power of the power amplifier.
4. The frequency control method of claim 3, further comprising:
and when the power amplifier is switched from the 2G call state to a call disconnection state, controlling the voltage converter to be switched to a fixed frequency power supply state.
5. The frequency control method of claim 1, wherein controlling the voltage converter to switch to an operating frequency corresponding to the power class comprises:
acquiring a target working mode corresponding to the power grade according to a mode mapping table, wherein the mode mapping table comprises a one-to-one mapping relation between a plurality of power grades and a plurality of target working modes;
and generating and outputting a frequency hopping signal carrying the target working mode information, wherein the frequency hopping signal is used for indicating the voltage converter to switch to a working frequency corresponding to the target working mode.
6. A frequency control apparatus, comprising:
the power acquisition module is used for acquiring the transmitting power of the power amplifier when the power amplifier is in a working state;
a grade obtaining module, configured to determine a power grade corresponding to the transmission power;
and the switching module is used for controlling the voltage converter to switch to the working frequency corresponding to the power grade, and the voltage converter is used for supplying power to the power amplifier by using the working frequency.
7. A radio frequency system, characterized in that the radio frequency system comprises:
the radio frequency assembly comprises a power amplifier, a first frequency divider and a second frequency divider, wherein the power amplifier is used for transmitting a radio frequency output signal and outputting the transmission power of the radio frequency output signal when the power amplifier is in a working state;
the voltage converter is respectively connected with the power amplifier and an external battery unit and is used for converting the voltage output by the battery unit into a power supply voltage and outputting the power supply voltage according to working frequency to supply power to the power amplifier;
the frequency control device is respectively connected with the power amplifier and the voltage converter and is used for acquiring the transmitting power of the power amplifier when the power amplifier is in a working state; determining a power level corresponding to the transmit power; and controlling the voltage converter to switch to the working frequency corresponding to the power grade.
8. The radio frequency system of claim 7, wherein the radio frequency assembly comprises:
a radio frequency transceiver for generating a radio frequency signal;
the power amplifier is connected with the radio frequency transceiver and used for receiving the radio frequency signal when in the working state and generating the radio frequency output signal according to the radio frequency signal;
and the power detector is arranged on a radio frequency path of the radio frequency signal, is connected with the frequency control device and is used for detecting and outputting the transmitting power of the radio frequency signal.
9. The radio frequency system of claim 7, wherein the radio frequency assembly comprises:
a radio frequency transceiver for generating a radio frequency signal;
the power amplifier is connected with the radio frequency transceiver and used for receiving the radio frequency signal when in the working state and generating the radio frequency output signal according to the radio frequency signal;
and the power detector is arranged on a radio frequency path of the radio frequency output signal, is connected with the frequency control device and is used for detecting and outputting the transmitting power of the radio frequency output signal.
10. The radio frequency system according to claim 8 or 9, wherein the frequency control device is integrated with the radio frequency transceiver.
11. A communication device, characterized in that the communication device comprises:
the radio frequency system of any one of claims 7 to 10;
and the battery unit is connected with a voltage converter in the radio frequency system.
CN202011343676.2A 2020-11-25 2020-11-25 Frequency control method, device, radio frequency system and communication equipment Active CN112469112B (en)

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