CN114040488A - Power adjustment method, radio transceiver, power amplifier and storage medium - Google Patents
Power adjustment method, radio transceiver, power amplifier and storage medium Download PDFInfo
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
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Abstract
The embodiment of the application discloses a power adjusting method, which is applied to a radio transceiver and comprises the following steps: the method comprises the steps of obtaining the working state of a power amplifier, and adjusting the output power of a radio frequency signal output by a radio transceiver based on the working state, wherein the adjusted output power meets the power condition of an input end of the power amplifier. The embodiment of the application also discloses a radio transceiver, a power amplifier and a storage medium.
Description
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a power adjustment method, a radio transceiver, a power amplifier, and a storage medium.
Background
Along with the continuous development of communication systems, electronic devices such as mobile phones and smart watches are frequently applied in life, and a radio transceiver, a Power Amplifier (PA) and an antenna in a radio frequency module are important components of the electronic device system, the radio transceiver generates radio frequency signals, the PA amplifies the radio frequency signals, and the radio frequency signals after Power amplification are transmitted through the antenna; meanwhile, the radio transceiver adjusts the output power of the radio-frequency signal generated by the radio transceiver according to the feedback transmission power of the radio-frequency signal transmitted out, and the power of the radio-frequency signal transmitted out by the final antenna is ensured to accord with the expected power.
In the related art, in order to improve the reliability of the PA, an Over Voltage Protection (OVP) function or an Over Current Protection (OCP) function is added during designing the PA, and when a supply voltage or a supply current of the PA exceeds a set threshold, the PA is triggered to enter a protection mode, such as a PA shutdown operation. When the PA enters a protection mode, the radio transceiver determines that the feedback transmitting power is smaller than the expected power, and increases the output power of the radio frequency signal for multiple times; however, the PA has a limit on the power of the rf signal input to the PA, and beyond a certain threshold the PA burns out.
Disclosure of Invention
The embodiment of the application is expected to provide a power adjustment method, a radio transceiver, a power amplifier and a storage medium, which solve the problem that in the related art, when a PA enters a protection mode, the radio transceiver determines that the feedback transmission power is smaller than the expected power, and increases the output power of a radio frequency signal for multiple times; however, the PA has a limit on the power of the rf signal input to the PA, and beyond a certain threshold the PA burns out. The power adjusting method provided by the application at least has the following beneficial effects: the working state of the power amplifier is obtained in time, and the radio transceiver further protects the power amplifier from the system side, so that the power amplifier is prevented from being damaged.
The technical scheme of the application is realized as follows:
the application provides a power adjustment method, which is applied to a radio transceiver and comprises the following steps:
acquiring the working state of a power amplifier;
and adjusting the output power of the radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier.
The application provides a power adjustment method, which is applied to a power amplifier and comprises the following steps:
acquiring state parameters of the power amplifier; wherein the state parameter comprises a supply voltage of the power amplifier, and/or a supply current of the power amplifier;
and determining the working state of the power amplifier according to the state parameter, so that the radio transceiver adjusts the output power of the output radio frequency signal based on the working state.
The present application provides a radio transceiver comprising:
the first acquisition module is used for acquiring the working state of the power amplifier;
and the processing module is used for adjusting the output power of the radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier.
The present application provides a power amplifier, the power amplifier comprising:
the second acquisition module is used for acquiring the state parameters of the power amplifier; wherein the state parameter comprises a supply voltage of the power amplifier, and/or a supply current of the power amplifier;
a determining module, configured to determine an operating state of the power amplifier according to the state parameter, so that the radio transceiver adjusts output power of the output radio frequency signal based on the operating state.
The present application provides a storage medium, wherein the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the power adjustment method described above.
According to the power adjusting method, the radio transceiver, the power amplifier and the storage medium provided by the embodiment of the application, the working state of the power amplifier is obtained; adjusting the output power of a radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier; therefore, the problem that when the power amplifier enters a protection mode, the radio transceiver increases the output power of the radio frequency signal for multiple times, so that the output power is overlarge, and the power amplifier is damaged is solved; meanwhile, the working state of the power amplifier is obtained in time, and the radio transceiver further protects the power amplifier from the system side, so that the power amplifier is prevented from being damaged.
Drawings
Fig. 1 is a block diagram of an alternative radio frequency front end circuit for implementing a power adjustment method according to the present invention;
fig. 2 is a schematic flow chart of an alternative power adjustment method according to an embodiment of the present disclosure;
fig. 3 is a schematic flow chart of an alternative power adjustment method according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of an alternative power adjustment method according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of an alternative wireless communication rf front-end circuit of the power adjustment method according to the embodiment of the present application;
fig. 6 is a schematic diagram of an alternative architecture of a radio transceiver provided in an embodiment of the present application;
fig. 7 is a schematic diagram of an alternative structure of a power amplifier according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a block diagram illustrating an alternative wireless communication rf front-end circuit structure for implementing a power adjustment method according to the present application. The wireless communication radio frequency front end circuit structure 100 comprises at least a radio transceiver 10, a power amplifier 20, a power coupler (coupler)30 and an antenna 40. The radio transceiver 10 generates a radio frequency signal with a certain power, and the radio frequency signal is outputted to the power amplifier 20 through a Driving Amplifier (DA) (not shown in the figure) in the radio transceiver 10 to be amplified, and the amplified radio frequency signal is outputted to the antenna 40 through the power coupler 30, so that the radio frequency signal is emitted into space.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating an implementation flow of a power adjustment method according to an embodiment of the present application, where the power adjustment method can be applied to the radio transceiver 10 in the radio frequency front-end circuit structure 100 of fig. 1; the power adjusting method comprises the following steps:
s201, obtaining the working state of the power amplifier.
In the embodiment of the application, the working state of the power amplifier includes that the power amplifier is in a protection state or the power amplifier is in a power amplification state. It should be noted that the power amplifier state refers to a state in which the power amplifier can amplify a radio frequency signal.
In the embodiment of the present application, the power amplifier is used for amplifying the weak signal. Further, the power amplifier may be understood as a power amplifier that converts power of a power supply into a current varying according to an input signal by using a current control function of a transistor or a voltage control function of a field effect transistor, and performs a current-voltage amplification function. In practical applications, the Power Amplifier includes, but is not limited to, a multi-mode multi-frequency Power Amplifier (MMMB PA), a Low frequency Power Amplifier (Low Band Power Amplifier), and a High frequency Power Amplifier (High Band Power Amplifier). The MMMB PA comprises a 3G/4G PA and supports the amplification of a plurality of frequency bands; low frequency power amplifiers, such as 2G low frequency PAs for GSM850/GSM900 bands; high frequency power amplifiers, such as 2G high frequency PA's, are used in the GSM1800/GSM1900 bands. In this regard, the present application is not particularly limited.
In the embodiment of the application, the working state of the power amplifier obtained by the radio transceiver may be that after the power amplifier obtains the working state of the power amplifier, the power amplifier sends the working state of the power amplifier to the radio transceiver through the signal transmission line, so that the radio transceiver obtains the working state of the power amplifier; the working state of the power amplifier obtained by the radio transceiver can also be the working state of the power amplifier read by the radio transceiver through a signal transmission line; the working state of the power amplifier acquired by the radio transceiver may be obtained by reading a value of a register of the power amplifier through the signal transmission line or a level parameter of a pin of the power amplifier. In this regard, the present application is not particularly limited. Here, the signal transmission line includes, but is not limited to, a Mobile Industry Processor Interface (MIPI), a General-purpose input/output (GPIO), and other signal transmission paths.
S202, based on the working state, the output power of the radio frequency signal output by the radio transceiver is adjusted.
And the adjusted output power meets the power condition of the input end of the power amplifier.
In this embodiment, the adjusting, by the radio transceiver, the output power of the radio frequency signal output by the radio transceiver based on the operating state includes: the radio transceiver improves the output power of the radio frequency signal output by the radio transceiver based on the working state; or the radio transceiver reduces the output power of the radio frequency signal output by the radio transceiver based on the working state; or the radio transceiver maintains the output power of the radio frequency signal output by the radio transceiver based on the operating state.
In an embodiment of the present application, the power condition at the input of the power amplifier includes that the power input to the power amplifier is less than a power threshold. It should be noted that, since the power amplifier has a limitation on the input power, the power amplifier may be burned out when the power input to the power amplifier is greater than the power threshold.
In the embodiment of the application, when the radio transceiver acquires the working state of the power amplifier, the output power of the radio frequency signal output by the radio transceiver is adjusted based on the working state of the power amplifier, and it is determined that the adjusted output power meets the power condition of the input end of the power amplifier.
According to the power adjustment method provided by the embodiment of the application, the working state of the power amplifier is obtained; adjusting the output power of a radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier; therefore, the problem that when the power amplifier enters a protection mode, the radio transceiver increases the output power of the radio frequency signal for multiple times, so that the output power is overlarge, and the power amplifier is damaged is solved; meanwhile, the working state of the power amplifier is obtained in time, and the radio transceiver further protects the power amplifier from the system side, so that the power amplifier is prevented from being damaged.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating an implementation flow of a power adjustment method according to an embodiment of the present application, where the power adjustment method may be applied to the power amplifier 20 in the radio frequency front-end circuit structure 100 of fig. 1; the power adjusting method comprises the following steps:
s301, acquiring the state parameters of the power amplifier.
Wherein the state parameter comprises a supply voltage of the power amplifier and/or a supply current of the power amplifier.
In the embodiment of the application, under one condition, the power amplifier is only provided with overvoltage protection, and the state parameter of the power amplifier is the power supply voltage of the power amplifier; the power amplifier is only provided with overcurrent protection, and the state parameter of the power amplifier is the power supply current of the power amplifier; the power amplifier is provided with both overvoltage protection and overcurrent protection, and the state parameters of the power amplifier comprise supply voltage and supply current. In this regard, the present application is not particularly limited.
In practical application, the transmission power is specified according to the transmission requirement of the radio frequency signal, under the specified transmission power, the working efficiency of the power amplifier can be changed by adjusting the supply voltage of the power amplifier, under the specific supply voltage, the working efficiency of the power amplifier reaching the specified transmission power is the highest, and the supply voltage at the moment is called as the efficiency point supply voltage under the transmission power.
In practical application, the transmission power is specified according to the transmission requirement of the radio frequency signal, under the specified transmission power, the working efficiency of the power amplifier can be changed by adjusting the supply current of the power amplifier, under the specific supply current, the working efficiency of the power amplifier reaching the specified transmission power is the highest, and the supply current at the moment is called the efficiency point supply current under the transmission power.
S302, determining the working state of the power amplifier according to the state parameter, so that the radio transceiver adjusts the output power of the output radio frequency signal based on the working state.
In the embodiment of the application, the working state of the power amplifier includes that the power amplifier is in a protection state or the power amplifier is in a power amplification state. It should be noted that the power amplifier state refers to a state in which the power amplifier normally amplifies the radio frequency signal.
In the embodiment of the application, after the state parameter of the power amplifier is obtained, the power amplifier determines the current working state of the power amplifier according to the state parameter of the power amplifier, and then sends the current working state of the power amplifier to the radio transceiver, so that the radio transceiver adjusts the output power of the output radio frequency signal based on the working state of the power amplifier. Therefore, the power amplifier can timely obtain the working state of the power amplifier and feed the working state of the power amplifier back to the radio transceiver, so that the radio transceiver can further protect the power amplifier from a system side, and the power amplifier is prevented from being damaged due to overlarge output power of the radio transceiver when the power amplifier enters a self-protection state.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating an implementation flow of a power adjustment method according to an embodiment of the present disclosure, where the power adjustment method can be applied to the radio frequency front end circuit structure 100 shown in fig. 1; the power adjusting method comprises the following steps:
s401, the power amplifier acquires the state parameters of the power amplifier.
In an embodiment of the present application, the state parameter includes a supply voltage of the power amplifier, and/or a supply current of the power amplifier.
S402, the power amplifier determines the working state of the power amplifier according to the state parameters.
In other embodiments of the present application, if the supply voltage is greater than or equal to the supply voltage threshold, or the supply current is greater than or equal to the supply current threshold, it is determined that the power amplifier is in the protection state.
And if the power supply voltage is smaller than the power supply voltage threshold value or the power supply current is smaller than the power supply current threshold value, determining that the power amplifier is in a power amplification state.
In the embodiment of the application, the power amplifier acquires the state parameters of the power amplifier, namely the power supply voltage and/or the power supply current, and judges whether the power supply voltage is greater than or equal to a power supply voltage threshold value or whether the power supply current is greater than or equal to a power supply current threshold value; if the power amplifier determines that the power supply voltage is greater than or equal to the power supply voltage threshold value, or the power supply current is greater than or equal to the power supply current threshold value; further, the power amplifier is turned off, or the bias voltage of the power amplifier is adjusted to be within the bias voltage threshold range, so that the power amplifier is determined to be in the protection state. And if the power amplifier determines that the power supply voltage is smaller than the power supply voltage threshold value or the power supply current is smaller than the power supply current threshold value, the power amplifier determines that the power amplifier is in a power amplification state.
In other embodiments of the present application, after the power amplifier determines the operating state of the power amplifier according to the state parameter, the operating state is stored in a register of the power amplifier, or a level parameter of a pin of the power amplifier is set according to the operating state, so that the radio transceiver reads a value of the register or the level parameter of the pin to obtain the operating state of the power amplifier.
In the embodiment of the present application, after the power amplifier determines the operating state of the power amplifier according to the state parameter, the operating state is stored in a register of the power amplifier, so that the radio transceiver reads a value of the register to obtain the operating state of the power amplifier.
In the embodiment of the application, after the power amplifier determines the working state of the power amplifier according to the state parameter, the level parameter of the pin of the power amplifier is set according to the working state, so that the radio transceiver reads the level parameter of the pin to obtain the working state of the power amplifier. In one case, the power amplifier is in a protection state, and the level parameter of the pin of the power amplifier is set to be a high level; the power amplifier is in a power amplification state, and the level parameter of the pin of the power amplifier is set to be a low level. In another case, the power amplifier is in a protection state, and the level parameter of the pin of the power amplifier is set to be a low level; the power amplifier is in a power amplification state, and the level parameter of the pin of the power amplifier is set to be a high level.
S403, the power amplifier sends the working state to the radio transceiver.
It should be noted that, in other embodiments of the present application, the radio transceiver may also obtain the operating state of the power amplifier by reading a value of a register of the power amplifier or a level parameter of a pin of the power amplifier.
S404, the radio transceiver receives the target transmitting power fed back by the power coupler.
The target transmission power is the transmission power of the radio-frequency signal which is obtained by inputting the amplified radio-frequency signal to the power coupler and coupling the radio-frequency signal to the antenna through the power coupler after the radio-frequency signal is amplified by the power amplifier.
In the embodiment of the application, after a radio frequency signal is generated by a radio transceiver, the radio frequency signal is input to a power amplifier, the radio frequency signal is amplified by the power amplifier, the amplified radio frequency signal is input to a power coupler, the transmission power output to an antenna through the power coupler is output, a part of power is coupled out by a coupling coefficient and is used as target transmission power, and the target transmission power is fed back to the radio transceiver.
Here, the transmission power output to the antenna through the power coupler, with a coupling coefficient to couple out a part of the power as a target transmission power, may be implemented by a Power Detect (PDET) path. The PDET path connects the power coupler and the radio transceiver, couples a part of the transmission power of the radio frequency signal out at the coupling end as a target transmission power, and transmits the target transmission power to the radio transceiver through the PDET path between the power coupler and the radio transceiver.
S405, the radio transceiver adjusts the output power based on the working state and the target transmitting power to obtain the adjusted output power.
And the adjusted output power meets the power condition of the input end of the power amplifier.
In the embodiment of the application, after receiving the working state sent by the power amplifier and the target transmitting power fed back by the power coupler, the radio transceiver adjusts the output power based on the working state and the target transmitting power of the working power amplifier to obtain the adjusted output power, so that the adjusted output power meets the power condition of the input end of the power amplifier.
In this embodiment of the present application, the S405 radio transceiver adjusts the output power based on the operating state and the target transmission power, and obtains the adjusted output power, which may be implemented as follows:
if the power amplifier is in a protection state, the output power of the radio frequency signal output by the radio transceiver is adjusted to be equal to the target output power. The target output power is the output power when the radio transceiver corresponding to the target transmitting power outputs the radio frequency signal.
In the embodiment of the application, the working state that the radio transceiver receives the signal sent by the power amplifier is that the power amplifier is in a protection state, and the output power of the radio frequency signal output by the radio transceiver is adjusted to be equal to the output power of the radio transceiver corresponding to the target transmitting power when the radio frequency signal is output by the radio transceiver; that is, after the radio transceiver determines that the power amplifier is in the protection state, the radio transceiver does not adjust the output power of the rf signal according to the target transmission power fed back by the power coupler, i.e., the output power of the radio transceiver is kept unchanged.
If the power amplifier is in a power amplification state, the output power is adjusted based on the target transmitting power and the transmitting power threshold value, and the adjusted output power is obtained.
In other embodiments of the present application, adjusting the output power based on the target transmit power and the transmit power threshold to obtain an adjusted output power includes:
and if the target transmitting power is smaller than the transmitting power threshold, improving the output power to obtain the improved output power. And if the target transmitting power is larger than the transmitting power threshold, reducing the output power to obtain the reduced output power. Wherein the adjusted output power includes an increased output power and a decreased output power.
In the embodiment of the application, when the power of the antenna port is smaller than the transmitting power threshold value, which is obtained by calculating according to the target transmitting power fed back by the radio transceiver, the radio transceiver improves the output power of the radio frequency signal; when the power of the antenna port is calculated to be larger than the threshold value of the transmitting power according to the fed back target transmitting power, the radio transceiver reduces the output power of the radio frequency signal; in this way, it is ensured that the power that eventually reaches the antenna port corresponds to the expected power.
In one practical application scenario, referring to fig. 5, the wireless communication rf front-end circuit at least includes a radio transceiver 10, a power amplifier 20, a power coupler (coupler)30 and an antenna 40, but may also include a Low Noise Amplifier (LNA) 50 and a Duplexer (Duplexer) 60. Where LNA50 is used in the receive path to increase the noise figure of the link and thus increase sensitivity. The duplexer 60 is used for filtering the amplified radio frequency signal. Fig. 5 illustrates an alternative wireless communication rf front-end circuit for implementing the power adjustment method provided in the present application.
In one case, if the power amplifier is in a power amplification state, the radio transceiver determines that the power amplifier is in a normal operation state, the radio transceiver 10 of the radio transceiver 10 generates a radio frequency signal TX with a certain power, the radio frequency signal TX enters the power amplifier 20 through the output of a driving amplifier in the radio transceiver 10 to be amplified, the amplified radio frequency signal is filtered by the duplexer 60 and then reaches the common end of the duplexer, and the amplified radio frequency signal is output to the antenna 40 through the power coupler 30 to be transmitted to a space. Here, the power coupler outputs the transmission power to the antenna, and a part of the power is coupled out as a target transmission power with a coupling coefficient, and the power coupler 30 feeds back the target transmission power to the radio transceiver 10 through the PDET path. At this time, the radio transceiver 10 adjusts the output power of the radio frequency signal generated by the radio transceiver 10 according to the power fed back.
In another case, if the power amplifier is in a protection state, the radio transceiver 10 generates a radio frequency signal TX with a certain power by the radio transceiver 10, and the radio frequency signal TX enters the power amplifier 20 through the output of the driving amplifier in the radio transceiver 10 to be processed, the processed radio frequency signal is filtered by the duplexer 60 and then reaches the common end of the duplexer, and then is output to the antenna 40 through the power coupler 30, and then the radio frequency signal is transmitted to the space. Here, the power coupler outputs the transmission power to the antenna, and a part of the power is coupled out as a target transmission power with a coupling coefficient, and the power coupler 30 feeds back the target transmission power to the radio transceiver 10 through the PDET path. At this time, the radio transceiver 10 does not adjust the output power of the radio frequency signal generated by the radio transceiver 10 according to the power fed back, i.e. the output power of the radio frequency signal output by the radio transceiver 10 is kept unchanged. When the power supply voltage or current of the power amplifier 20 returns to the set safety threshold, that is, the power amplifier 20 switches from the protection state to the power amplification state, and simultaneously, the switching of the working state is fed back to the wireless point transceiver 10, and when the wireless point transceiver 10 receives the information that the transceiver receives that the power amplifier 20 is in the power amplification state, the wireless point transceiver further feeds back and adjusts the normal mode of power output according to the target transmitting power; therefore, when the power amplifier enters the self-protection working state, the working state of the power amplifier is timely fed back to the radio transceiver, the radio transceiver further protects the power amplifier from the system side, and the power amplifier is prevented from being damaged due to overlarge output power of the radio transceiver when the power amplifier enters the self-protection state.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
Embodiments of the present application provide a radio transceiver, which may be used to implement a power adjustment method provided in the embodiments corresponding to fig. 2 and fig. 4, and as shown in fig. 6, the radio transceiver 10 includes:
a first obtaining module 61, configured to obtain an operating state of the power amplifier;
and the processing module 62 is configured to adjust an output power of the radio frequency signal output by the radio transceiver based on the operating state, where the adjusted output power meets a power condition of an input terminal of the power amplifier.
In other embodiments of the present application, the working state of the power amplifier includes that the power amplifier is in a protection state or the power amplifier is in a power amplification state.
In other embodiments of the present application, the radio transceiver 10 further includes a receiving module, where the receiving module is configured to receive a target transmission power fed back by the power coupler, where the target transmission power is a transmission power of a radio frequency signal that is obtained by amplifying a radio frequency signal by a power amplifier, inputting the amplified radio frequency signal to the power coupler, and coupling the amplified radio frequency signal to an antenna through the power coupler; the processing module 62 is further configured to adjust the output power based on the working state and the target transmission power, so as to obtain an adjusted output power.
In other embodiments of the present application, the processing module 62 is further configured to adjust an output power of the radio frequency signal output by the radio transceiver to be equal to a target output power if the power amplifier is in a protection state, where the target output power is an output power of the radio frequency signal output by the radio transceiver corresponding to the target transmission power; if the power amplifier is in a power amplification state, the output power is adjusted based on the target transmitting power and the transmitting power threshold value, and the adjusted output power is obtained.
In other embodiments of the present application, the processing module 62 is further configured to increase the output power if the target transmission power is smaller than the transmission power threshold, so as to obtain an increased output power; if the target transmitting power is larger than the transmitting power threshold, reducing the output power to obtain the reduced output power; wherein the adjusted output power includes an increased output power and a decreased output power.
An embodiment of the present application provides a power amplifier, which may be used to implement a power adjustment method provided in the embodiments corresponding to fig. 3 and fig. 4, and as shown in fig. 7, the power amplifier 20 includes:
a second obtaining module 71, configured to obtain a state parameter of the power amplifier; wherein the state parameter comprises a supply voltage of the power amplifier and/or a supply current of the power amplifier;
a determining module 72, configured to determine an operating state of the power amplifier according to the state parameter, so that the radio transceiver adjusts the output power of the output radio frequency signal based on the operating state.
In other embodiments of the present application, the determining module 72 is further configured to determine that the power amplifier is in a protection state if the power supply voltage is greater than or equal to the power supply voltage threshold, or the power supply current is greater than or equal to the power supply current threshold; and if the power supply voltage is smaller than the power supply voltage threshold value or the power supply current is smaller than the power supply current threshold value, determining that the power amplifier is in a power amplification state.
In other embodiments of the present application, the power amplifier further includes a processing module, where the processing module is configured to turn off the power amplifier, or turn down a bias voltage of the power amplifier within a bias voltage threshold range, and determine that the power amplifier is in a protection state.
In other embodiments of the present application, the processing module is further configured to store the operating state in a register of the power amplifier, or set a level parameter of a pin of the power amplifier according to the operating state, so that the radio transceiver reads a value of the register or the level parameter of the pin to obtain the operating state of the power amplifier.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
Based on the foregoing embodiments, embodiments of the present application provide a computer storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps of:
acquiring the working state of a power amplifier;
and adjusting the output power of the radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier.
In other embodiments of the present application, the operating state of the power amplifier includes that the power amplifier is in a protection state or the power amplifier is in a power amplification state.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
receiving target transmitting power fed back by the power coupler, wherein the target transmitting power is the transmitting power of a radio frequency signal which is obtained by amplifying a radio frequency signal by a power amplifier, inputting the amplified radio frequency signal to the power coupler and coupling the radio frequency signal to an antenna through the power coupler; and adjusting the output power based on the working state and the target transmitting power to obtain the adjusted output power.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
if the power amplifier is in a protection state, adjusting the output power of the radio-frequency signal output by the radio transceiver to be equal to a target output power, wherein the target output power is the output power of the radio transceiver corresponding to the target transmitting power when the radio transceiver outputs the radio-frequency signal; if the power amplifier is in a power amplification state, the output power is adjusted based on the target transmitting power and the transmitting power threshold value, and the adjusted output power is obtained.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
if the target transmitting power is smaller than the transmitting power threshold, the output power is increased to obtain the increased output power; if the target transmitting power is larger than the transmitting power threshold, reducing the output power to obtain the reduced output power; wherein the adjusted output power includes an increased output power and a decreased output power.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
acquiring state parameters of a power amplifier; wherein the state parameter comprises a supply voltage of the power amplifier and/or a supply current of the power amplifier;
and determining the working state of the power amplifier according to the state parameter so that the radio transceiver adjusts the output power of the output radio frequency signal based on the working state.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
if the power supply voltage is greater than or equal to the power supply voltage threshold value or the power supply current is greater than or equal to the power supply current threshold value, determining that the power amplifier is in a protection state; and if the power supply voltage is smaller than the power supply voltage threshold value or the power supply current is smaller than the power supply current threshold value, determining that the power amplifier is in a power amplification state.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
and turning off the power amplifier, or reducing the bias voltage of the power amplifier within the bias voltage threshold range, and determining that the power amplifier is in a protection state.
In other embodiments of the present application, the one or more programs are executable by the one or more processors and further implement the steps of:
and storing the working state in a register of the power amplifier, or setting a level parameter of a pin of the power amplifier according to the working state so that the radio transceiver reads the value of the register or the level parameter of the pin to acquire the working state of the power amplifier.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
The computer storage medium/Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a magnetic Random Access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); but may also be various terminals such as mobile phones, computers, tablet devices, personal digital assistants, etc., that include one or any combination of the above-mentioned memories.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of a unit is only one logical function division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one building block, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit. Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media capable of storing program codes, such as a removable Memory device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.
The methods disclosed in the several method embodiments provided in the present application may be combined arbitrarily without conflict to obtain new method embodiments.
Features disclosed in several of the product embodiments provided in the present application may be combined in any combination to yield new product embodiments without conflict.
The features disclosed in the several method or apparatus embodiments provided in the present application may be combined arbitrarily, without conflict, to arrive at new method embodiments or apparatus embodiments.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (12)
1. A method of power adjustment, applied to a radio transceiver, the method comprising:
acquiring the working state of a power amplifier;
and adjusting the output power of the radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier.
2. The method of claim 1, wherein the operating state of the power amplifier comprises the power amplifier being in a protection state or the power amplifier being in a power amplification state.
3. The method of claim 1 or 2, wherein the adjusting the output power of the radio frequency signal output by the radio transceiver based on the operating state comprises:
receiving target transmitting power fed back by a power coupler, wherein the target transmitting power is the transmitting power of a radio frequency signal which is obtained by amplifying the radio frequency signal by the power amplifier, inputting the amplified radio frequency signal to the power coupler and coupling the radio frequency signal to an antenna through the power coupler;
and adjusting the output power based on the working state and the target transmitting power to obtain the adjusted output power.
4. The method of claim 3, wherein the adjusting the output power based on the operating state and the target transmit power to obtain the adjusted output power comprises:
if the power amplifier is in a protection state, adjusting the output power of a radio frequency signal output by the radio transceiver to be equal to a target output power, wherein the target output power is the output power of the radio transceiver corresponding to the target transmission power when the radio frequency signal is output by the radio transceiver;
and if the power amplifier is in a power amplification state, adjusting the output power based on the target transmitting power and the transmitting power threshold value to obtain the adjusted output power.
5. The method of claim 4, wherein the adjusting the output power based on the target transmit power and a transmit power threshold to obtain the adjusted output power comprises:
if the target transmitting power is smaller than the transmitting power threshold, the output power is increased to obtain the increased output power;
if the target transmitting power is larger than the transmitting power threshold, reducing the output power to obtain the reduced output power; wherein the adjusted output power includes the increased output power and the decreased output power.
6. A power adjustment method applied to a power amplifier, the method comprising:
acquiring state parameters of the power amplifier; wherein the state parameter comprises a supply voltage of the power amplifier, and/or a supply current of the power amplifier;
and determining the working state of the power amplifier according to the state parameter, so that the radio transceiver adjusts the output power of the output radio frequency signal based on the working state.
7. The method of claim 6, wherein the determining the operating state of the power amplifier according to the state parameter comprises:
if the power supply voltage is greater than or equal to a power supply voltage threshold value or the power supply current is greater than or equal to a power supply current threshold value, determining that the power amplifier is in a protection state;
and if the power supply voltage is smaller than the power supply voltage threshold value or the power supply current is smaller than the power supply current threshold value, determining that the power amplifier is in a power amplification state.
8. The method of claim 7, wherein the power amplifier is determined to be in a protection state if the supply voltage is greater than or equal to a supply voltage threshold or the supply current is greater than or equal to a supply current threshold, the method comprising:
and turning off the power amplifier, or reducing the bias voltage of the power amplifier within a bias voltage threshold range, and determining that the power amplifier is in the protection state.
9. The method of claim 7, wherein after determining the operating state of the power amplifier according to the state parameter, the method comprises:
and storing the working state in a register of the power amplifier, or setting a level parameter of a pin of the power amplifier according to the working state so that the radio transceiver reads a value of the register or the level parameter of the pin to acquire the working state of the power amplifier.
10. A radio transceiver, characterized in that the radio transceiver comprises:
the first acquisition module is used for acquiring the working state of the power amplifier;
and the processing module is used for adjusting the output power of the radio frequency signal output by the radio transceiver based on the working state, wherein the adjusted output power meets the power condition of the input end of the power amplifier.
11. A power amplifier, characterized in that the power amplifier comprises:
the second acquisition module is used for acquiring the state parameters of the power amplifier; wherein the state parameter comprises a supply voltage of the power amplifier, and/or a supply current of the power amplifier;
a determining module, configured to determine an operating state of the power amplifier according to the state parameter, so that the radio transceiver adjusts output power of the output radio frequency signal based on the operating state.
12. A storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the power adjustment method of any one of claims 1 to 5 or 6 to 9.
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