CN114499575A - Radio frequency power amplifier, module, electronic equipment, signal processing method and device - Google Patents

Abstract

The application discloses a radio frequency power amplifier, a module, an electronic device, a signal processing method and device, and belongs to the technical field of communication. The radio frequency power amplifier includes: a first power amplifying unit, an input end of the first power amplifying unit is connected to a first signal input end of the radio frequency power amplifier. A combiner, the first end of the combiner is connected to the output end of the first power amplifying unit, and the second end of the combiner is connected to the second signal input end of the radio frequency power amplifier. A first coupling unit, the first end of the first coupling unit is connected to the third end of the combiner, and the second end of the first coupling unit is connected to the first signal output end of the radio frequency power amplifier. Wherein, the above-mentioned combiner is used to perform radio frequency combining of the first signal and the target spurious signal; the phase of the target spurious signal and the spurious signal in the first signal is opposite.

Description

RF power amplifier, module, electronic equipment, signal processing method and device

technical field

The application belongs to the field of communication technologies, and in particular relates to a radio frequency power amplifier, a module, an electronic device, a signal processing method and device.

Background technique

At present, in the fifth-generation mobile communication technology (5G), communication can be performed through electronic devices with high transmit power to meet the communication requirements of high speed, low latency and wide signal coverage, thereby improving the communication performance of electronic devices.

However, during the communication process of an electronic device with high transmit power, the adjacent channel leakage ratio (ACLR) of the electronic device may be large, which may lead to a relatively low linearity of the RF power amplifier of the electronic device. low, so that the signal output by the RF power amplifier contains spurious signals, and therefore, the signal output by the RF power amplifier may be distorted.

This may result in poor communication performance of electronic devices with high transmit power.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a radio frequency power amplifier, a module, an electronic device, a signal processing method and an apparatus, which can solve the problem of poor communication performance of the electronic device.

In a first aspect, an embodiment of the present application provides a radio frequency power amplifier, the radio frequency power amplifier includes: a first power amplifying unit, an input end of the first power amplifying unit is connected to a first signal input end of the radio frequency power amplifier. A combiner, the first end of the combiner is connected to the output end of the first power amplifying unit, and the second end of the combiner is connected to the second signal input end of the radio frequency power amplifier. A first coupling unit, the first end of the first coupling unit is connected to the third end of the combiner, and the second end of the first coupling unit is connected to the first signal output end of the radio frequency power amplifier. The above-mentioned combiner is used to combine the first signal and the target spurious signal by radio frequency; the above-mentioned first signal is: the signal input from the first signal input terminal and amplified by the first power amplifying unit; the above-mentioned target spurious signal The scattered signal is: a signal obtained based on the second signal and input from the second signal input terminal; the second signal is: the first signal is coupled by the first coupling unit and output by the first signal output terminal; the signal; The target spurious signal is opposite in phase to the spurious signal in the first signal.

In a second aspect, an embodiment of the present application provides a radio frequency power amplifier module, the radio frequency power amplifier module includes: a first radio frequency power amplifier, and the first radio frequency power amplifier is the radio frequency power amplifier according to the first aspect. A radio frequency power amplifying module, the radio frequency power amplifying module is respectively connected with the first signal output end and the second signal input end of the first radio frequency power amplifier. Wherein, the combiner of the first radio frequency power amplifier is used for radio frequency combining of the first signal and the target spurious signal; the first signal is: input from the first signal input end of the first radio frequency power amplifier, and passes through the first signal. A signal amplified by the first power amplifying unit of a radio frequency power amplifier; the above-mentioned target spurious signal is obtained by the radio frequency power amplifying module based on the second signal; the second signal is: the first signal passes through the first radio frequency power amplifier. After a coupling unit is coupled, the first signal output terminal outputs a signal to the radio frequency power amplifying module; the phase of the target spurious signal is opposite to that of the spurious signal in the first signal.

In a third aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the radio frequency power amplification module described in the second aspect.

In a fourth aspect, an embodiment of the present application provides a signal processing method, the method includes: in the case that the target transmit power required by the electronic device is greater than a preset power threshold, using N association relationships to determine the target corresponding to the target transmit power Adjustment parameters, each relationship is the relationship between a transmit power and an adjustment parameter, N is a positive integer; through the radio frequency power amplification module of the electronic device, using the target adjustment parameter, based on the second signal, obtain the target spurious The second signal is: after the first signal is coupled by the first coupling unit of the first radio frequency power amplifier of the radio frequency power amplifier module, the first signal output end of the first radio frequency power amplifier is output to the radio frequency power amplifier module The signal of the radio frequency power amplifier module, the first signal is: the signal input by the first signal input end of the first radio frequency power amplifier and amplified by the first power amplifying unit of the first radio frequency power amplifier; The combiner of the power amplifier performs radio frequency combining of the first signal and the target spurious signal, and transmits the target signal obtained after the radio frequency combining. Wherein, the above-mentioned target spurious signal is opposite in phase to the spurious signal in the first signal.

In a fifth aspect, an embodiment of the present application provides a signal processing apparatus, where the signal processing apparatus includes: a determination module, a control module, and a transmission module. Wherein, the determining module is configured to use N correlations to determine target adjustment parameters corresponding to the target transmission power when the target transmission power required by the signal processing device is greater than a preset power threshold, and each correlation is a transmission power The relationship between an adjustment parameter, N is a positive integer. The control module is used to obtain the target spurious signal based on the second signal through the radio frequency power amplification module of the signal processing device, using the target adjustment parameter determined by the determination module, and the second signal is: the first signal passes through the radio frequency power amplification module After the first coupling unit of the first radio frequency power amplifier of the group is coupled, the first signal output end of the first radio frequency power amplifier is output to the signal of the radio frequency power amplifier module of the radio frequency power amplifier module, and the first signal is: the first signal The signal input by the first signal input end of the radio frequency power amplifier and amplified by the first power amplifying unit of the first radio frequency power amplifier; and the first signal and the target spurious signal are combined by the combiner of the first radio frequency power amplifier Perform RF combining. The sending module is used for sending the target signal obtained after the control module controls the radio frequency combining. Wherein, the above-mentioned target spurious signal is opposite in phase to the spurious signal in the first signal.

In a sixth aspect, an embodiment of the present application provides an electronic device, the electronic device includes a processor and a memory, the memory stores a program or an instruction that can be executed on the processor, and the program or instruction is processed by the processor The steps of the method as described in the fourth aspect are implemented when the device is executed.

In a seventh aspect, an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the fourth aspect are implemented .

In an eighth aspect, an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, and implement the fourth aspect the method described.

In a ninth aspect, an embodiment of the present application provides a computer program product, where the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the method according to the fourth aspect.

In the embodiment of the present application, the radio frequency power amplifier includes: a first power amplifying unit connected to the first signal input end of the radio frequency power amplifier, the first end is connected to the output end of the first power amplifying unit, and the second end is connected to the output end of the first power amplifying unit. a combiner connected to the second signal input end of the radio frequency power amplifier, a first coupling unit whose first end is connected to the third end of the combiner, and the second end is connected to the first signal output end of the radio frequency power amplifier , so that the combiner can combine the first signal input from the first signal input terminal and amplified by the first power amplifying unit, and the target spurious signal obtained based on the second signal and input from the second signal input terminal. (The phase of the target stray signal is opposite to the stray signal in the first signal) to perform radio frequency combining; wherein, the second signal is the signal output by the first signal output end after the first signal is coupled by the first coupling unit . In the process of communication, the signal input by the radio frequency power amplifier can be amplified by the first power amplifying unit to obtain the first signal, and the first signal can be input to the combiner, and then output the radio frequency after being coupled by the first coupling unit The power amplifier, in this way, can obtain the target spurious signal with the opposite phase of the spurious signal in the first signal based on the signal (ie, the second signal) of the output RF power amplifier, and input it to the combiner, therefore, the combined circuit The device can combine the first signal and the target spurious signal by radio frequency, so as to eliminate most of the spurious signals in the first signal, so as to avoid the signal output by the radio frequency power amplifier containing a large number of spurious signals, thereby avoiding the radio frequency The signal output by the power amplifier is distorted, thus improving the communication performance of the electronic device.

Description of drawings

1 is one of the schematic structural diagrams of a radio frequency power amplifier provided by an embodiment of the present application;

FIG. 2 is a second schematic structural diagram of a radio frequency power amplifier provided by an embodiment of the present application;

3 is a third schematic structural diagram of a radio frequency power amplifier provided by an embodiment of the present application;

4 is one of the schematic structural diagrams of the radio frequency power amplification module provided by the embodiment of the present application;

5 is a second schematic structural diagram of a radio frequency power amplification module provided by an embodiment of the present application;

6 is a third schematic structural diagram of a radio frequency power amplification module provided by an embodiment of the present application;

7 is a fourth schematic structural diagram of a radio frequency power amplification module provided by an embodiment of the present application;

FIG. 8 is one of the schematic flowcharts of the signal processing method provided by the embodiment of the present application;

FIG. 9 is the second schematic flowchart of the signal processing method provided by the embodiment of the present application;

FIG. 10 is a third schematic flowchart of a signal processing method provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a signal processing apparatus provided by an embodiment of the present application;

12 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of hardware of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms involved in the embodiments of the present application will be described below.

1. Adjacent channel leakage ratio (ACLR)

Adjacent Channel Leakage Ratio is a measure of the transmitted radio frequency energy generated by the output power amplifier outside the specified use of the transmission channel, and must be accurately measured because interference can occur and destroy specified requirements.

2. Other terms

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between "first", "second", etc. The objects are usually of one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

The radio frequency power amplifier, module, electronic device, signal processing method and apparatus provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

FIG. 1 shows a possible schematic structural diagram of a radio frequency power amplifier provided by an embodiment of the present application. As shown in FIG. 1 , the radio frequency power amplifier includes: a first power amplifying unit 10 , and an input of the first power amplifying unit 10 The terminal is connected to the first signal input terminal Rx1 of the radio frequency power amplifier; the combiner 11, the first terminal of the combiner 11 is connected to the output terminal of the first power amplifying unit 10, and the second terminal of the combiner 11 is connected to the output terminal of the first power amplifier unit 10. The second signal input end Rx2 of the radio frequency power amplifier is connected; the first coupling unit 12, the first end of the first coupling unit 12 is connected with the third end of the combiner 11, and the second end of the first coupling unit 12 is connected with The first signal output terminal Tx1 of the radio frequency power amplifier is connected.

Optionally, in this embodiment of the present application, the above-mentioned first power amplifying unit 10 may specifically be a power amplifying tube. The first power amplifying unit 10 may process (eg, scaling or amplifying) the signal input to the first power amplifying unit 10 according to a default gain value or a set gain value.

Optionally, in this embodiment of the present application, the above-mentioned combiner 11 may specifically be: a two-in and one-out combiner. The first end and the second end of the combiner 11 are both signal input ends.

Optionally, in this embodiment of the present application, the first end of the combiner 11 and the output end of the first power amplifying unit 10 may be directly connected through a signal line, or may be indirectly connected through a switch. Referring to FIG. 1 , the first end of the combiner 11 can be indirectly connected to the output end of the first power amplifying unit 10 through a single-pole double-throw switch.

Optionally, in the embodiment of the present application, the first end of the first coupling unit 12 may specifically be: the signal input end of the main signal line of the first coupling unit 12, and the second end of the first coupling unit 12 may specifically be : the signal output end of the coupled signal line of the first coupling unit 12 .

Optionally, in this embodiment of the present application, with reference to FIG. 1 , the first end of the first coupling unit 12 may be connected to the third end of the combiner 11 through a filter.

Optionally, in this embodiment of the present application, with reference to FIG. 1 , the second end of the first coupling unit 12 may be connected to the first signal output end Tx1 through a third switch unit. Wherein, the third switch unit may specifically be: a single-pole double-throw switch.

Further optionally, in the embodiment of the present application, the movable end of the third switch unit may be connected to the second end of the first coupling unit 12 , and the stationary end of the third switch unit is connected to the first signal output end Tx1 .

In the embodiment of the present application, referring to FIG. 1 , the above-mentioned combiner is used to perform radio frequency combining of the first signal and the target spurious signal; the first signal is: input from the first signal input terminal Rx1 and amplified by the first power The signal amplified by the unit 10; the target spurious signal is: obtained based on the second signal and input from the second signal input terminal Rx2; the second signal is: the first signal is coupled by the first coupling unit 12. , the signal output by the first signal output terminal Tx1.

It can be understood that the signal input by the first signal input terminal Rx1 can be amplified by the first power amplifying unit 10 to obtain the first signal. Then, the first signal can pass through the first end and the third end of the combiner 11, enter the first coupling unit 12 from the first end of the first coupling unit 12, and then be coupled by the first coupling unit 12 to obtain the first signal. Second signal. In this way, the second signal can pass through the second end of the first coupling unit 12 and output the radio frequency power amplifier from the first signal output end Tx1, so that the target spurious signal can be input to the first signal of the combiner 11 from the second signal input end Rx2 Two terminals, so that the combiner 11 can perform radio frequency combining of the first signal and the target spurious signal.

Optionally, in this embodiment of the present application, the radio frequency power amplifier may be connected to the target component, so that the target component may obtain the target spurious signal based on the second signal, and input the target spurious signal into the radio frequency power amplifier. Wherein, the target component may be a signal generating device.

Specifically, the target component may be any of the following: a modem, a radio frequency power amplifier module.

Specifically, the radio frequency power amplifier module may be: a third radio frequency power amplifier; or may be the third radio frequency power amplifier and a modem. Here, the structure of the third radio frequency power amplifier may be the same as or different from that of the radio frequency power amplifier; if the structure of the third radio frequency power amplifier is different from that of the radio frequency power amplifier, the third radio frequency power amplifier may specifically be: a radio frequency power amplifier in the related art power amplifier.

Further optionally, in the embodiment of the present application, the first signal output terminal Tx1 may be connected to the signal input terminal of the target component, and the second signal input terminal Rx2 may be connected to the signal output terminal of the target component.

In the embodiment of the present application, the above-mentioned target spurious signal is opposite to the phase of the spurious signal in the first signal.

It can be understood that the phase of the target spurious signal is opposite to the spurious signal in the first signal, so after the combiner 11 performs radio frequency combining, most of the spurious signals in the first signal can be eliminated.

Optionally, in this embodiment of the present application, the waveform and amplitude of the target spurious signal may be the same as or different from the waveform and amplitude of the spurious signal in the first signal.

Under the condition that the waveform and amplitude of the target spurious signal are the same as those of the spurious signal in the first signal, after the combiner 11 performs radio frequency combining, most of the first signal can be eliminated. spurious signals.

Optionally, in this embodiment of the present application, with reference to FIG. 1 , as shown in FIG. 2 , the third end of the first coupling unit 12 may be connected to the sixth signal output end of the radio frequency power amplifier, and the sixth signal output end may be connected to the sixth signal output end of the radio frequency power amplifier. The antenna module 13 is connected.

It can be understood that after the combiner 11 performs radio frequency combining of the first signal and the target spurious signal, the combined radio frequency signal can be output to the antenna module from the sixth signal output terminal, so as to transmit the combined radio frequency signal. Signal.

In the embodiment of the present application, during the communication process, the signal input by the first signal input terminal Rx1 of the radio frequency power amplifier is amplified by the first power amplifying unit 10 to obtain a first signal, which may include spurious signals. In this way, the radio frequency power amplifier can output the first signal from the first signal output terminal Tx1 after being coupled by the first coupling unit 12 to obtain the target spurious signal, which is the same as the spurious signal in the first signal. The phase of the RF power amplifier is opposite, so that the combiner 11 of the RF power amplifier can perform RF combining of the first signal and the target spurious signal to eliminate most of the spurious signals in the first signal, so as to obtain only a small amount of spurious signals. signal of.

In the radio frequency power amplifier provided by the embodiment of the present application, the radio frequency power amplifier includes: a first power amplifying unit connected to a first signal input end of the radio frequency power amplifier, the first end being connected to an output end of the first power amplifying unit, and A combiner whose second end is connected to the second signal input end of the radio frequency power amplifier, the first end is connected to the third end of the combiner, and the second end is connected to the first signal output end of the radio frequency power amplifier. a coupling unit, so that the combiner can combine the first signal input from the first signal input terminal and amplified by the first power amplifying unit, and the target obtained based on the second signal and input from the second signal input terminal The stray signal (the phase of the target stray signal and the stray signal in the first signal is opposite) is combined by radio frequency; wherein, the second signal is the first signal after the first signal is coupled by the first coupling unit, and the first signal output terminal output signal. In the process of communication, the signal input by the radio frequency power amplifier can be amplified by the first power amplifying unit to obtain the first signal, and the first signal can be input to the combiner, and then output the radio frequency after being coupled by the first coupling unit The power amplifier, in this way, can obtain the target spurious signal with the opposite phase of the spurious signal in the first signal based on the signal (ie, the second signal) of the output RF power amplifier, and input it to the combiner, therefore, the combined circuit The device can combine the first signal and the target spurious signal by radio frequency, so as to eliminate most of the spurious signals in the first signal, so as to avoid the signal output by the radio frequency power amplifier containing a large number of spurious signals, thereby avoiding the radio frequency The signal output by the power amplifier is distorted, thus improving the communication performance of the electronic device.

Furthermore, since the combiner can perform radio frequency combining of the first signal and the target spurious signal to eliminate most spurious signals in the first signal, the linearity of the radio frequency power amplifier can be improved.

Of course, there may be some situations where the target spurious signal cannot be obtained based on the second signal, for example, the target component is processing other signals. Therefore, in one state, the first signal of the combiner 11 can be controlled. The connection between the two terminals and the second signal input terminal Rx2 is conducted. In another state, the second terminal of the combiner 11 and the second signal input terminal Rx2 can be controlled to be disconnected.

Optionally, in this embodiment of the present application, with reference to FIG. 2 , as shown in FIG. 3 , the above-mentioned radio frequency power amplifier further includes: a first switch unit 14 , the first end 141 of the first switch unit 14 and the first end 141 of the combiner The two terminals are connected, the second terminal 142 of the first switch unit 14 is connected to the second signal input terminal Rx2; the first resistor R1, the first terminal of the first resistor R1 is connected to the third terminal 143 of the first switch unit 14 , the second end of the first resistor R1 is grounded.

Further optionally, in the embodiment of the present application, the first switch unit 14 may specifically be: a single-pole double-throw switch. The first end 141 of the first switch unit 14 may be a stationary end, and the second end 142 and the third end 143 of the first switch unit 14 may both be movable ends.

Further optionally, in the embodiment of the present application, the resistance value of the first resistor R1 may specifically be: 50Ω (ohm).

In the embodiment of the present application, when the radio frequency power amplifier is in the first state, the first end of the first switch unit 14 is connected to 141 the second end 142 of the first switch unit 14; when the radio frequency power amplifier is in the second state In this case, the first terminal 141 of the first switch unit 14 is connected to the third terminal 143 of the first switch unit 14 .

Further optionally, in the embodiment of the present application, when the target component does not process other signals, the radio frequency power amplifier can be controlled to be in the first state, so that the second end of the combiner 11 and the second signal input end Rx2 The radio frequency power amplifier can output a signal that does not include spurious signals (that is, a signal obtained after the combiner 11 performs radio frequency combining of the first signal and the target spurious signal).

When the target component is processing other signals, the radio frequency power amplifier can be controlled to be in the second state, so that the second end of the combiner 11 is disconnected from the second signal input end Rx2, so that the radio frequency power amplifier can output signals including The signal of the spurious signal (ie the first signal).

It can be seen from this that since the radio frequency power amplifier can be controlled to be in different states, so that the first end of the first switch unit can be connected to different ends of the first switch unit, so that the radio frequency power amplifier can output different signals, therefore, the radio frequency can be improved. Compatibility between power amplifiers and other components.

FIG. 4 shows a possible schematic structural diagram of a radio frequency power amplification module provided by an embodiment of the present application. As shown in FIG. 4 , the radio frequency power amplification module includes: a first radio frequency power amplifier 20, the first radio frequency power The amplifier 20 is the radio frequency power amplifier in the above embodiment; the radio frequency power amplifying module 21 is connected to the first signal output terminal Tx1 and the second signal input terminal Rx2 of the first radio frequency power amplifier 20 respectively.

Optionally, in the embodiment of the present application, the above-mentioned radio frequency power amplifier module 21 may specifically be: the third radio frequency power amplifier in the above embodiment; or may be the third radio frequency power amplifier and a modem.

In the embodiment of the present application, with reference to FIG. 4 , the combiner 22 of the first radio frequency power amplifier 20 is used to perform radio frequency combining of the first signal and the target spurious signal; the first signal is: the first radio frequency power amplifier 20 The signal input by the first signal input terminal Rx1 of the first radio frequency power amplifier 20 and amplified by the first power amplifying unit 23 of the first radio frequency power amplifier 20; the target spurious signal is: obtained by the radio frequency power amplifying module 21 based on the second signal; the The second signal is: after the first signal is coupled by the first coupling unit 24 of the first radio frequency power amplifier 20 , the signal is output to the radio frequency power amplifying module 21 from the first signal output terminal Tx1 .

In the embodiment of the present application, the above-mentioned target spurious signal is opposite to the phase of the spurious signal in the first signal.

In the embodiment of the present application, in the process of communication, the signal input by the first signal input terminal Rx1 of the first radio frequency power amplifier 20 can be obtained after being amplified by the first power amplifying unit 23, and the first signal can be obtained. may include spurious signals. In this way, the first radio frequency power amplifier 20 can output the first signal to the radio frequency power amplifying module 21 from the first signal output terminal Tx1 after being coupled by the first coupling unit 24, so that the radio frequency power amplifying module 21 can, based on the second signal, The target spurious signal is obtained, and the target spurious signal is input to the combiner 22 from the second signal input terminal Rx2, and then the combiner 22 can perform radio frequency combining of the first signal and the target spurious signal to eliminate the first signal. The vast majority of spurious signals in a signal to obtain a signal that includes only a small number of spurious signals.

In the radio frequency power amplifier module provided by the embodiment of the present application, the radio frequency power amplifier module includes a first radio frequency power amplifier, and radio frequency power amplifiers respectively connected to the first signal output end and the second signal input end of the first radio frequency power amplifier. module, so that the combiner can combine the first signal input from the first signal input end and amplified by the first power amplifying unit, and the first signal obtained by the radio frequency power amplifying module based on the second signal and input from the second signal input end The target spurious signal (the phase of the target spurious signal and the spurious signal in the first signal is opposite) is combined by radio frequency; wherein, the second signal is the first signal after the first signal is coupled by the first coupling unit, by the first signal output signal. In the process of communication, the signal input by the first radio frequency power amplifier can be amplified by the first power amplifying unit to obtain the first signal, and the first signal can be input to the combiner and coupled by the first coupling unit. output to the radio frequency power amplifier module, so that the radio frequency power amplifier module can obtain the target spurious signal with the opposite phase to the spurious signal in the first signal based on the signal outputting the first radio frequency power amplifier (ie, the second signal), and input to the combiner, therefore, the combiner can combine the first signal and the target spurious signal by radio frequency to eliminate most of the spurious signals in the first signal, so as to avoid the output of the first radio frequency power amplifier. The signal contains a large number of spurious signals, so that the distortion of the signal output by the first radio frequency power amplifier can be avoided, so that the communication performance of the electronic device can be improved.

The following will take the example that the RF power amplifying module is a third RF power amplifier and a modem, and the structure of the third RF power amplifier is different from that of the first RF power amplifier 20 , for illustration.

Optionally, in the embodiment of the present application, with reference to FIG. 4 , as shown in FIG. 5 , the above-mentioned radio frequency power amplifier module 21 includes: a second radio frequency power amplifier 25 , and the third signal input terminal Rx3 of the second radio frequency power amplifier 25 is connected to the second radio frequency power amplifier 25 . The first signal output terminal Tx1 is connected, the third signal input terminal Rx3 is connected to the second signal output terminal Tx2 of the second radio frequency power amplifier 25, and the third signal output terminal Tx3 of the second radio frequency power amplifier 25 is connected to the second signal input terminal The terminal Rx2 is connected; the modem 26, the fourth signal input terminal Rx4 of the modem 26 is connected with the second signal output terminal Tx2, the fourth signal output terminal Tx4 of the modem 26 is connected with the fifth signal input terminal Rx5 of the second radio frequency power amplifier 25 connection, the fifth signal output terminal Tx5 of the modem 26 is connected with the first signal input terminal Rx1; wherein, the fifth signal input terminal Rx5 is connected to the third signal output terminal through the second power amplifying unit 27 of the second radio frequency power amplifier 25 Terminal Tx3 connection.

It can be understood that the second radio frequency power amplifier 25 may be a radio frequency power amplifier in the related art, and the second radio frequency power amplifier 25 may be regarded as an error amplifier of the feedforward linearization of the first radio frequency power amplifier 20 .

In the embodiment of the present application, the fourth signal input end Rx4 of the modem 26 is a power feedback circuit (feedback receiver, FBRX) interface.

Further optionally, in this embodiment of the present application, the above-mentioned second power amplifying unit 27 may specifically be: a power amplifying tube.

In this embodiment of the present application, with reference to FIG. 5 , the third signal input terminal Rx3 may pass through the fourth switch unit 28 and the second signal output terminal Tx2. The fourth switch unit 28 may specifically be a single-pole double-throw switch.

Further optionally, in this embodiment of the present application, with reference to FIG. 5 , one movable end of the fourth switch unit 28 may be connected to the third signal input end Rx3 , and the other movable end may be connected to the second coupling of the second radio frequency power amplifier 25 . The output end of the coupled signal line of the unit 29 is connected, and the stationary end of the fourth switch unit 28 is connected to the second signal output end Tx2.

In the embodiment of the present application, the above-mentioned modem 26 is used for obtaining the first spurious signal based on the second signal; the above-mentioned second power amplifying unit 27 is used for amplifying the first spurious signal to obtain the target spurious signal.

Further optionally, in this embodiment of the present application, the modem 26 may detect the second signal, and then, according to the detection result, adjust the phase of the signal of the first signal input terminal Rx1 to a set phase (for example, the first phase in the following embodiments). ), and controls the first power amplifying unit 23 to scale the phase-adjusted signal according to the set gain value 1 (for example, the first gain value in the following embodiments), so that the scaled signal passes through the first coupling After the unit 24 is coupled, the first signal output terminal Tx1 is output to the third signal input terminal Rx3, and the second signal output terminal Tx2 enters the modem 26 through the fourth signal input terminal Rx4, so that the modem 26 can couple the second signal and The latter signals are added to obtain the first spurious signal (simple out-of-band spurious signal). Therefore, the first spurious signal can enter the second power amplifying unit 27 from the fourth signal output terminal Tx4 through the fifth signal input terminal Rx5, and the modem 26 can control the second power amplifying unit 27 according to the set gain value 2 (for example, the following (the second gain value in the above embodiment) to amplify the first spurious signal to obtain the target spurious signal.

Optionally, in the embodiment of the present application, with reference to FIG. 5 , as shown in FIG. 6 , the above-mentioned radio frequency power amplification module further includes: a second switch unit 30 , the first end 301 of the second switch unit 30 is connected to the third signal The output terminal Tx3 is connected, the second terminal 302 of the second switch unit 30 is connected to the second signal input terminal Rx2 , and the third terminal 303 of the second switch unit 30 is connected to the antenna module 31 .

It can be understood that the third signal output terminal Tx3 is connected to the second signal input terminal Rx2 through the second switch unit 30 .

Further optionally, in the embodiment of the present application, the above-mentioned second switch unit 30 may specifically be: a single-pole double-throw switch. Wherein, the first end 301 of the second switch unit 30 may specifically be a stationary end, and the second end 302 and the third end 303 may both be movable ends.

In the embodiment of the present application, when the first radio frequency power amplifier 20 is in the first state, the first end 301 of the second switch unit 30 is connected to the second end 302 of the second switch unit 30; in the first radio frequency power amplifier When the 20 is in the second state, the first terminal 301 of the second switch unit 30 is connected to the third terminal 303 of the second switch unit 30 .

Further optionally, in this embodiment of the present application, when the second radio frequency power amplifier 25 does not process other signals, the first radio frequency power amplifier 20 is in the first state. At this time, one moving end of the third switching unit of the first radio frequency power amplifier 20 can be connected to the stationary end, so that the second end of the first coupling unit 24 is connected to the first signal output end Tx1; and the first radio frequency power The first end of the first switch unit of the amplifier 20 is connected to the second end, so that the second end of the combiner 22 is connected to the second signal input end Rx2; and a moving end and a stationary end of the fourth switch unit 28 connected, so that the third signal input terminal Rx3 is connected with the second signal output terminal Tx2; The input end Rx2 is connected, so that the RF power amplifying module can output a signal that does not include spurious signals (ie, the signal obtained by the combiner 22 performing RF combining of the first signal and the target spurious signal).

While the second radio frequency power amplifier 25 is processing other signals, the first radio frequency power amplifier 20 is in the second state. At this time, the other movable end of the third switch unit can be connected to the stationary end, so that the second end of the first coupling unit 24 is disconnected from the first signal output end Tx1; and the first end of the first switch unit is connected to the third terminal, so that the second terminal of the combiner 22 is disconnected from the second signal input terminal Rx2; and the other moving terminal of the fourth switch unit 28 is connected to the non-moving terminal, so that the third signal input terminal Rx2 is connected. The terminal Rx3 is disconnected from the second signal output terminal Tx2; and the first terminal 301 of the second switch unit 30 is connected to the third terminal 303, so that the third signal output terminal Tx3 and the second signal input terminal Rx2 are disconnected , so that the radio frequency power amplifying module can output a signal including spurious signals (ie, the first signal).

In the embodiment of the present application, when the second radio frequency power amplifier 25 is processing other signals, the signal output by the second radio frequency power amplifier 25 may be output to the antenna module 31 to transmit the signal.

It can be seen from this that when the first radio frequency power amplifier is in different states, the first end of the second switch unit can be connected to different ends of the second switch unit, so that the first radio frequency power amplifier can output different signals, so , which can improve the compatibility between the RF power amplifier module and other components.

Optionally, in the embodiment of the present application, with reference to FIG. 6 , the above-mentioned radio frequency power amplifier module further includes: a phase modulator 32 , the first end of the phase modulator 32 is connected to the second end 302 of the second switch unit 30 , The second end of the phase modulator 32 is connected to the second signal input end Rx2.

It can be understood that the second terminal 302 of the second switching unit 30 may be connected to the second signal input terminal Rx2 through the phase modulator 32 .

Further optionally, in this embodiment of the present application, the phase modulator 32 may adjust the phase of the signal input to the phase modulator 32 to a default phase or a set phase.

It can be seen from this that since a phase modulator is further provided between the second end of the second switch unit and the second signal input end, the phase of the target spurious signal can be adjusted by the phase modulator, so that the target spurious signal has a The phase is opposite to the phase of the spurious signal in the first signal to accurately remove the spurious signal in the first signal.

FIG. 7 shows a possible schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 7 , the electronic device includes the radio frequency power amplification module 40 in the foregoing embodiment.

Optionally, in this embodiment of the present application, the foregoing electronic device may specifically be: an electronic device with high transmit power.

Further optionally, in this embodiment of the present application, the high transmit power specifically refers to that the power of transmitting radio frequency signals is high.

Optionally, in this embodiment of the present application, with reference to FIG. 7 , a central processing unit (CPU) of the electronic device is connected to the radio frequency power amplification module 40 .

Optionally, in this embodiment of the present application, when the electronic device is in the target working state, the electronic device can control the first radio frequency power amplifier of the radio frequency power amplifying module 40 to be in the first state; when the electronic device is not in the target working state In the case of , the electronic device can control the first radio frequency power amplifier to be in the second state.

Further optionally, in the embodiment of the present application, the above-mentioned target working state may be any one of the following: a wireless dual connectivity (EUTRA-NR Dual Connectivity, ENDC) state, and an independent networking (standalone, SA) uplink single transmission state.

It can be understood that when the electronic device is in the EN-DC state (or the SA uplink single-shot state), the second RF power amplifier of the RF power amplification module 40 does not process other signals, so the electronic device can transmit power according to the required transmission power, It is determined whether to control the second radio frequency power amplifier to be turned on, and if it is determined to control the second radio frequency power amplifier to be turned on, the second radio frequency power amplifier is turned on, and the first radio frequency power amplifier is controlled to be in the first state.

When the electronic device is not in the EN-DC state (or the SA uplink single-shot state), such as in the uplink (upLink, UL) multiple-input multiple-output (MIMO) state, the radio frequency power amplification The second RF power amplifier of the module 40 is processing other signals, so the electronic device can control the first RF power amplifier to be in the second state.

In the electronic device provided by the embodiment of the present application, the electronic device includes a radio frequency power amplification module. In the process of communication, the signal input by the first radio frequency power amplifier of the radio frequency power amplifier module can be amplified by the first power amplifying unit of the first radio frequency power amplifier to obtain the first signal, and the first signal can be input to The combiner of the first radio frequency power amplifier is coupled through the first coupling unit of the first radio frequency power amplifier and then output to the radio frequency power amplifier module of the radio frequency power amplifier module, so that the radio frequency power amplifier module can output the first radio frequency The signal of the power amplifier (that is, the second signal), the target spurious signal with the opposite phase to the spurious signal in the first signal is obtained, and input to the combiner, so the combiner can combine the first signal with the target spurious signal. The stray signals are combined by radio frequency to eliminate most of the stray signals in the first signal, so that the signal output by the first radio frequency power amplifier can be prevented from containing a large number of stray signals, and the signal output by the first radio frequency power amplifier can be avoided. Distortion, as such, can improve the communication performance of electronic devices.

FIG. 8 shows a flowchart of a signal processing method provided by an embodiment of the present application. As shown in FIG. 8 , the signal processing method provided by this embodiment of the present application may include the following steps 101 to 103 .

Step 101: When the target transmit power required by the signal processing apparatus is greater than a preset power threshold, the signal processing apparatus determines the target adjustment parameter corresponding to the target transmit power by using N association relationships.

In this embodiment of the present application, the above-mentioned target transmit power may specifically be: transmit power of a signal to be transmitted by the signal processing apparatus.

Optionally, in this embodiment of the present application, the above-mentioned N association relationships may specifically be: association relationships pre-stored in the signal processing apparatus.

In the embodiment of the present application, each of the above-mentioned N associations is an association between a transmit power and an adjustment parameter, and N is a positive integer.

Optionally, in this embodiment of the present application, for each of the N association relationships, the signal processing apparatus may first control the power of the signal input from the first signal input end of the first radio frequency power amplifier of the radio frequency power amplifier module. is P1, and then the signal is amplified by the first power amplifying unit of the first radio frequency power amplifier and coupled by the first coupling unit of the radio frequency power amplifying module, and then output from the first signal output end to the radio frequency power amplifying module The transmission parameter of the modem determines an adjustment parameter, so that the signal processing apparatus can establish the correlation between P1 and the adjustment parameter to obtain one correlation, and so on, to obtain N correlations.

The above-mentioned transmission parameters may include at least one of the following: transmission delay, transmission path gain value, and transmission path loss value.

Optionally, in this embodiment of the present application, the signal processing apparatus may first determine two matching transmission powers from the N transmission powers according to the target transmission power, so that the signal processing apparatus may, based on the two transmission powers, and the The two adjustment parameters associated with the two transmit powers determine the target adjustment parameter. Wherein, the two transmit powers are adjacent.

Exemplarily, it is assumed that the N association relationships include: association relationship 1, association relationship 2, and association relationship 3, wherein association relationship 1 is the association relationship between transmission power 1 and adjustment parameter 1, and association relationship 2 is transmission power 2 and adjustment parameter 1. Correlation relationship between parameters 2, correlation relationship 3 is the relationship between transmit power 3 and adjustment parameter 3, transmit power 1 < transmit power 2 < transmit power 3, and target transmit power > transmit power 1, target transmit power < transmit power 2, the signal processing apparatus may determine two transmission powers (ie, transmission power 1 and transmission power 2) according to the target transmission power, and determine the target adjustment parameter according to the adjustment parameter 1 and adjustment parameter 2.

Further optionally, in this embodiment of the present application, the signal processing apparatus may use an interpolation algorithm to determine the target adjustment parameter based on the two transmission powers and the two adjustment parameters associated with the two transmission powers.

It should be noted that, for the description of the interpolation algorithm, reference may be made to the specific description in the related art, which is not repeated in this embodiment of the present application.

In the embodiment of the present application, the above target adjustment parameter is used for the radio frequency power amplification module to adjust the first signal.

Optionally, in this embodiment of the present application, with reference to FIG. 8 , as shown in FIG. 9 , the foregoing step 101 may be specifically implemented by the following step 101 a , and before the foregoing step 102 , the signal processing method provided by the embodiment of the present application may further The following step 201 may be included.

Step 101a: When the signal processing apparatus is in the target working state and the target transmit power is greater than the preset power threshold, the signal processing apparatus uses N correlations to determine the target adjustment parameter.

Further optionally, in this embodiment of the present application, the above-mentioned target working state may be any one of the following: an EN-DC state and an SA uplink single-transmission state.

In this embodiment of the present application, if the target transmit power is greater than the preset power threshold, it may be considered that the transmit power of the signal communicated by the signal processing apparatus is relatively high, that is, the ACLR of the signal processing apparatus may be relatively high, that is, the output of the first radio frequency power amplifier The signal may contain spurious signals; and, if the signal processing device is in the target working state, it can be considered that the second RF power amplifier of the RF power amplification module does not process other signals, therefore, the signal processing device can determine the target adjustment parameter, So that the radio frequency power amplifying module can adjust for the first signal.

Step 201: The signal processing apparatus controls the first radio frequency power amplifier to be in a first state.

Further optionally, in this embodiment of the present application, the signal processing apparatus may control a movable end of the third switch unit of the first radio frequency power amplifier to be connected to a stationary end, so that the second end of the first coupling unit is connected to the first signal. The output end is connected; and the first end of the first switch unit of the first radio frequency power amplifier is controlled to be connected with the second end, so that the second end of the combiner is connected with the second signal input end; and the control of the fourth switch unit A moving end is connected with the stationary end, so that the third signal input end is connected with the second signal output end; and the first end of the control second switch unit is connected with the second end, so that the third signal output end is connected with the first end The two signal input ends are connected to control the first radio frequency power amplifier to be in the first state.

It can be understood that when the first radio frequency power amplifier is in the first state, the second radio frequency power amplifier can be regarded as an error amplifier of the feedforward linearization of the first radio frequency power amplifier.

It can be seen from this that the signal processing apparatus can determine the target adjustment parameter and control the first radio frequency power only when the signal output by the first radio frequency power amplifier may contain spurious signals and the second radio frequency power amplifier does not process other signals. The amplifier is in the first state, so the situation that the radio frequency power amplification module cannot be adjusted for the first signal can be avoided.

Optionally, in this embodiment of the present application, the above step 101a may also be replaced by the following step 101b.

Step 101b, when the signal processing apparatus is not in the target working state, the signal processing apparatus controls the first radio frequency power amplifier to be in the second state, and sends the first signal.

In this embodiment of the present application, if the signal processing apparatus is not in the target working state, it can be considered that the second radio frequency power amplifier is processing other signals. Therefore, the signal processing apparatus may control the first radio frequency power amplifier to be in the second state, and send the first radio frequency power amplifier to the second state. Signal.

Further optionally, in the embodiment of the present application, the signal processing device can control the other movable end of the third switch unit to be connected to the stationary end, so that the second end of the first coupling unit and the first signal output end are disconnected. and control the first end of the first switch unit to connect with the third end, so that the second end of the combiner is disconnected from the second signal input end; and control the other moving end of the fourth switch unit to connect with the The moving end is connected, so that the third signal input end and the second signal output end are disconnected; and the first end of the control second switch unit is connected with the third end, so that the third signal output end and the second signal input end The terminal is connected to control the first radio frequency power amplifier to be in the second state.

It can be understood that when the first radio frequency power amplifier is in the second state, the first radio frequency power amplifier may output the first signal, and the second radio frequency power amplifier may output other signals.

It can be seen from this that since the signal processing device can directly send the first signal when the second RF power amplifier is processing other signals, it can avoid the signal transmission caused by the failure of the RF power amplifier module to adjust the first signal. delay.

Step 102: The signal processing apparatus obtains the target spurious signal based on the second signal by using the target adjustment parameter through the radio frequency power amplification module of the signal processing apparatus.

In the embodiment of the present application, the above-mentioned second signal is: after the first signal is coupled by the first coupling unit of the first radio frequency power amplifier of the radio frequency power amplifier module, the first signal output end of the first radio frequency power amplifier is output to the radio frequency The signal of the radio frequency power amplifying module of the power amplifying module, the first signal is the signal input by the first signal input end of the first radio frequency power amplifier and amplified by the first power amplifying unit of the first radio frequency power amplifier.

Optionally, in this embodiment of the present application, the radio frequency power amplification module may use target adjustment parameters to perform target adjustment processing on the second signal to obtain the target spurious signal.

The above target adjustment processing may include at least one of the following: adjusting signal phase, signal amplification processing, and signal scaling processing.

Step 103: The signal processing apparatus performs radio frequency combining of the first signal and the target spurious signal through the combiner of the first radio frequency power amplifier, and transmits the target signal obtained after the radio frequency combining.

Wherein, the above-mentioned target spurious signal is opposite in phase to the spurious signal in the first signal.

In the signal processing method provided by the embodiment of the present application, when the target transmission power required by the signal processing apparatus is greater than the preset power threshold, the signal processing apparatus may first determine the target adjustment parameters corresponding to the target transmission power according to the N correlations, and then Through the RF power amplifier module, the target stray signal is obtained based on the second signal by using the target adjustment parameters, so that the signal processing device can use the combiner to combine the first signal (the stray signal in the first signal) input by the first RF power amplifier. The phase of the stray signal is opposite to that of the target stray signal) and the target stray signal is combined by radio frequency, and the target signal obtained after the radio frequency combining is sent. Because when the signal processing device determines that the signal processing device is performing high transmit power communication, the signal processing device can determine the target adjustment parameters according to the N correlations, and use the target adjustment parameters through the radio frequency power amplifying module, based on the first The second signal obtains a target spurious signal whose phase is opposite to the spurious signal in the signal input by the first radio frequency power amplifier (ie, the first signal), and the first signal and the target spurious signal are combined by a combiner by radio frequency. circuit to eliminate most of the spurious signals in the first signal, so that the signal output by the first radio frequency power amplifier can be prevented from including a large amount of spurious signals, and the signal output by the first radio frequency power amplifier can be prevented from being distorted. Improve the communication performance of the signal processing device.

The following will illustrate how the RF power amplification module adopts the target adjustment parameter to obtain the target spurious signal based on the second signal.

Optionally, in this embodiment of the present application, the above-mentioned target adjustment parameter includes: a first phase and a first gain value. Specifically, with reference to FIG. 8 , as shown in FIG. 10 , the above-mentioned step 102 may specifically be performed through the following steps 102 a to 102 c .

Step 102a: The signal processing apparatus adjusts the phase of the signal input from the first signal input end to the first phase through the modem of the radio frequency power amplifying module to obtain the third signal.

Further optionally, in this embodiment of the present application, the first phase is determined by the transmission delay output from the first signal output terminal to the modem; the first gain value is the transmission path gain value output from the first signal output terminal to the modem. (and/or transmission path loss value).

Further optionally, in the embodiment of the present application, when the second signal is input to the modem, the modem can detect the feedback result, and then adjust the phase of the signal input from the first signal input end to the first phase.

Step 102b: The signal processing apparatus performs scaling processing on the third signal according to the first gain value through the first power amplifying unit.

It should be noted that, for the description that the first power amplifying unit performs scaling processing on the third signal according to the first gain value, reference may be made to the specific description in the related art, which is not repeated in this embodiment of the present application.

Step 102c, the signal processing apparatus obtains the target spurious signal based on the second signal and the scaled third signal.

In this embodiment of the present application, the scaled third signal and the second signal are equal in value and opposite in phase.

Further optionally, in this embodiment of the present application, the scaled third signal may be coupled by the first coupling unit, and then output to the modem from the first output end, so that the modem may The processed third signal obtains the target spurious signal.

Optionally, in this embodiment of the present application, the above-mentioned target adjustment parameter further includes: a second gain value. Specifically, the above-mentioned step 102c can be specifically implemented through the following steps 102c1 and 102c2.

Step 102c1: The signal processing apparatus adds the second signal and the scaled third signal through the modem to obtain the first spurious signal.

It can be understood that the first spurious signal is a pure out-of-band spurious signal.

Further optionally, in this embodiment of the present application, the second gain value is determined by the transmission path gain value (and/or the transmission path loss value) output by the fourth signal output end of the modem to the combiner.

Step 102c2: The signal processing apparatus amplifies the first spurious signal according to the second gain value through the second power amplifying unit of the second radio frequency power amplifier of the radio frequency power amplifying module to obtain the target spurious signal.

Further optionally, in this embodiment of the present application, after obtaining the first spurious signal, the modem may output the first spurious signal to the second radio frequency power amplifier, so that the second power amplifying unit may, according to the second gain value, Amplify the first spurious signal.

It should be noted that, for the description of the amplifying processing of the first spurious signal by the second power amplifying unit according to the second gain value, reference may be made to the specific description in the related art, which is not repeated in this embodiment of the present application.

Optionally, in this embodiment of the present application, the above-mentioned target adjustment parameter further includes: a second phase. Specifically, before "obtaining the target spurious signal" in step 102c2, the signal processing method provided in this embodiment of the present application may further include the following step 301, and the above step 102c2 may be specifically implemented by the following step 102c21.

Step 301: The signal processing apparatus amplifies the first stray signal through the second power amplification unit of the second RF power amplifier of the RF power amplification module, according to the second gain value, and performs phase modulation of the RF power amplification module. The amplifier adjusts the phase of the amplified first spurious signal to the second phase.

Further optionally, in this embodiment of the present application, the second phase is determined by the transmission delay output from the fourth signal output end of the modem to the combiner.

Step 102c21, the signal processing apparatus obtains the target spurious signal.

It can be seen from this that the signal processing device can adjust the phase of the signal input from the first signal input end to the first phase, and perform scaling processing on the adjusted signal according to the first gain value to obtain out-of-band spurious signals, thereby The signal processing apparatus can accurately obtain a spurious signal whose phase is opposite to the spurious signal in the first signal based on the second signal and the out-of-band spurious signal.

Optionally, in the embodiment of the present application, before "sending the target signal obtained after radio frequency combining" in the above step 103, the signal processing method provided by the embodiment of the present application may further include the following step 401, and the above step 103 can be specifically implemented through the following step 103a.

Step 401: The signal processing apparatus performs radio frequency combining of the first signal and the target spurious signal through the combiner of the first radio frequency power amplifier, and determines the target radiation spurious value according to the target signal.

Further optionally, in this embodiment of the present application, after the target signal is obtained, the target signal can be coupled by the first coupling unit and output to the modem through the first signal output terminal, so that the modem can determine the target radiation spurious value.

Step 103a: In the case that the target radiation spurious value is smaller than the preset radiation spurious threshold, the signal processing apparatus sends the target signal.

In the embodiment of the present application, if the target radiation spurious value is less than the preset radiation spurious threshold, it can be considered that the spurious signals in the target signal are reduced, and therefore, the signal processing apparatus can transmit the target signal.

It can be seen from this that the signal processing device can determine the target radiation spurious value according to the target signal, so as to determine whether the spurious signal in the target signal is less, and only when it is determined that the spurious signal in the target signal is less. The target signal is transmitted, and therefore, distortion of the output signal can be avoided.

Optionally, in this embodiment of the present application, the foregoing step 103a may also be replaced by the following steps 103b and 103c.

Step 103b: In the case that the target radiation spurious value is greater than or equal to the preset radiation spurious threshold, the signal processing apparatus adjusts the second phase based on the target radiation spurious value.

In the embodiment of the present application, if the target radiation spurious value is greater than or equal to the preset radiation spurious threshold, it can be considered that there are still many spurious signals in the target signal. Therefore, the signal processing apparatus may, based on the target radiation spurious value, Adjust the second phase.

It should be noted that, for the description that the signal processing apparatus adjusts the second phase based on the target radiation spurious value, reference may be made to the specific description in the related art, which is not repeated in this embodiment of the present application.

Step 103c: The signal processing apparatus adjusts the phase of the amplified first spurious signal to the adjusted second phase through the phase modulator.

Further optionally, in this embodiment of the present application, after the phase of the amplified first stray signal is adjusted to the adjusted second phase by the phase modulator, the signal processing apparatus may then use the combiner to convert the first stray signal into the adjusted phase. The signal and the adjusted first spurious signal are combined by radio frequency, and the radiation spurious value is determined again according to the signal after the radio frequency combining, and when the radiation spurious value is greater than or equal to the preset radiation spurious threshold , the above steps 103b and 103c are performed again until the radiation spurious value is smaller than the preset radiation spurious threshold.

It can be seen from this that, when there are many spurious signals in the target signal, the signal processing apparatus can adjust the second phase, and adjust the amplified first spurious signal again according to the adjusted second phase. Therefore, It can reduce spurious signals in the signal obtained by RF combining.

In the signal processing method provided by the embodiment of the present application, the execution body may be a signal processing apparatus. In the embodiments of the present application, a signal processing method performed by a signal processing apparatus is used as an example to describe the signal processing apparatus provided by the embodiments of the present application.

FIG. 11 shows a possible schematic structural diagram of the signal processing apparatus involved in the embodiment of the present application. As shown in FIG. 11 , the signal processing apparatus 60 may include: a determination module 61 , a control module 62 and a transmission module 63 .

Wherein, the determining module 61 is configured to adopt N association relationships to determine target adjustment parameters corresponding to the target transmission power when the target transmission power required by the signal processing device 60 is greater than the preset power threshold, and each association relationship is a The relationship between transmit power and an adjustment parameter, N is a positive integer. The control module 62 is used to obtain the target spurious signal based on the second signal through the radio frequency power amplification module of the signal processing device 60, using the target adjustment parameter determined by the determination module 61, and the second signal is: the first signal passes through the radio frequency After the first coupling unit of the first radio frequency power amplifier of the power amplifier module is coupled, the first signal output end of the first radio frequency power amplifier outputs a signal to the radio frequency power amplifier module of the radio frequency power amplifier module, and the first signal is : the signal input by the first signal input end of the first radio frequency power amplifier and amplified by the first power amplifying unit of the first radio frequency power amplifier; Spurious signals are RF combined. The sending module 63 is configured to send the target signal obtained after the control module 62 controls the radio frequency combining. Wherein, the above-mentioned target spurious signal is opposite in phase to the spurious signal in the first signal.

In a possible implementation manner, the above determining module 61 is specifically configured to use N association relationships to determine the target adjustment parameter when the signal processing device 60 is in the target working state and the target transmit power is greater than the preset power threshold. . The above-mentioned control module 62 is further configured to control the first radio frequency power amplifier to be in the first state.

In a possible implementation manner, the above-mentioned control module 62 is further configured to control the first radio frequency power amplifier to be in the second state and send the first signal when the signal processing device 60 is not in the target working state.

In a possible implementation manner, the above-mentioned target adjustment parameter includes: a first phase and a first gain value. The above-mentioned control module 62 is specifically used to adjust the phase of the signal input from the first signal input end to the first phase through the modem of the radio frequency power amplifying module to obtain the third signal; and through the first power amplifying unit, according to the first gain and performing scaling processing on the third signal; and obtaining the target spurious signal based on the second signal and the third signal after scaling processing.

In a possible implementation manner, the above-mentioned target adjustment parameter further includes: a second gain value. The above-mentioned control module 62 is specifically used to add the second signal and the scaled third signal through the modem to obtain the first spurious signal; and to amplify the second power of the second radio frequency power amplifier of the radio frequency power amplifier module The unit, according to the second gain value, amplifies the first spurious signal to obtain the target spurious signal.

In a possible implementation manner, the above-mentioned target adjustment parameter further includes: a second phase. The above-mentioned control module 62 is further configured to adjust the phase of the amplified first stray signal to the second phase through the phase modulator of the radio frequency power amplification module.

In a possible implementation manner, the above determining module 61 is further configured to determine the target radiation spurious value according to the target signal. The above-mentioned sending module 63 is specifically configured to send the target signal when the target radiation spurious value is smaller than the preset radiation spurious threshold.

In a possible implementation manner, the above-mentioned control module 62 is further configured to adjust the second phase based on the target radiation spurious value when the target radiation spurious value is greater than or equal to the preset radiation spurious threshold; The phase modulator adjusts the phase of the amplified first spurious signal to the adjusted second phase.

In the signal processing apparatus provided by the embodiment of the present application, in the process that the signal processing apparatus determines that the signal processing apparatus is performing high transmit power communication, the signal processing apparatus can determine the target adjustment parameters according to the N association relationships, and amplify the parameters through the radio frequency power. The module adopts the target adjustment parameter to obtain a target spurious signal whose phase is opposite to the spurious signal in the signal input by the first radio frequency power amplifier (ie, the first signal) based on the second signal, and uses the combiner to obtain the first spurious signal. A signal and a target spurious signal are combined by radio frequency to eliminate most of the spurious signals in the first signal, so as to avoid the signal output by the first radio frequency power amplifier containing a large number of spurious signals, thereby avoiding the first radio frequency The signal output by the power amplifier is distorted, so that the communication performance of the signal processing device can be improved.

The signal processing apparatus in this embodiment of the present application may be an electronic device, or may be a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than the terminal. Exemplarily, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle electronic device, a mobile internet device (MID), an augmented reality (AR)/virtual reality (VR) Devices, robots, wearable devices, ultra-mobile personal computers (UMPCs), netbooks or personal digital assistants (PDAs), etc., and can also be servers, network attached storages (NAS) , a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The signal processing apparatus in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The signal processing apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 8 to FIG. 10 , which is not repeated here to avoid repetition.

Optionally, in the embodiment of the present application, as shown in FIG. 12 , the embodiment of the present application further provides an electronic device 70 , which includes a processor 71 and a memory 72 , and the memory 72 stores data that can be executed on the processor 71 . When the program or instruction is executed by the processor 71, each process step of the above-mentioned signal processing method embodiment can be realized, and the same technical effect can be achieved. In order to avoid repetition, it will not be repeated here.

It should be noted that the electronic devices in the embodiments of the present application include the aforementioned mobile electronic devices and non-mobile electronic devices.

FIG. 13 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110, etc. part.

Those skilled in the art can understand that the electronic device 100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power management through the power management system. consumption management and other functions. The structure of the electronic device shown in FIG. 13 does not constitute a limitation on the electronic device. The electronic device may include more or less components than the one shown, or combine some components, or arrange different components, which will not be repeated here. .

The processor 110 is configured to use N association relationships to determine target adjustment parameters corresponding to the target transmission power when the target transmission power required by the electronic device is greater than a preset power threshold, and each association relationship is a transmission power and an association relationship between an adjustment parameter, N is a positive integer; and through the radio frequency power amplification module of the electronic device, using the target adjustment parameter, based on the second signal, to obtain the target spurious signal, the second signal is: the first signal After being coupled by the first coupling unit of the first radio frequency power amplifier of the radio frequency power amplifier module, the first signal output end of the first radio frequency power amplifier is output to the signal of the radio frequency power amplifier module of the radio frequency power amplifier module. The signal is: a signal input by the first signal input end of the first radio frequency power amplifier and amplified by the first power amplifying unit of the first radio frequency power amplifier; The signal and the target spurious signal are combined by radio frequency.

The radio frequency unit 101 is used for sending the target signal obtained after the radio frequency is combined.

Wherein, the above-mentioned target spurious signal is opposite in phase to the spurious signal in the first signal.

In the electronic device provided by the embodiment of the present application, in the process of determining that the electronic device is performing high transmit power communication, the electronic device can determine target adjustment parameters according to N association relationships, and use the radio frequency power amplifying module to use The target adjustment parameter is based on the second signal to obtain a target spurious signal whose phase is opposite to the spurious signal in the signal input by the first radio frequency power amplifier (ie, the first signal), and the first signal and the target spurious signal are obtained through the combiner. The spurious signals are combined by radio frequency to eliminate most of the spurious signals in the first signal, so as to avoid the signal output by the first radio frequency power amplifier containing a large number of spurious signals, thereby avoiding the output of the first radio frequency power amplifier. Signal distortion, as such, can improve the communication performance of electronic devices.

Optionally, in this embodiment of the present application, the processor 110 is specifically configured to use N association relationships to determine the target adjustment parameter when the electronic device is in the target working state and the target transmit power is greater than the preset power threshold.

The processor 110 is further configured to control the first radio frequency power amplifier to be in the first state.

It can be seen from this that the electronic device can determine the target adjustment parameter and control the first radio frequency power amplifier only when the signal output by the first radio frequency power amplifier may contain spurious signals and the second radio frequency power amplifier does not process other signals. In the first state, therefore, the situation that the radio frequency power amplifying module cannot be adjusted for the first signal can be avoided.

Optionally, in this embodiment of the present application, the processor 110 is further configured to control the first radio frequency power amplifier to be in the second state and send the first signal when the electronic device is not in the target working state.

It can be seen from this that since the electronic device can directly send the first signal when the second RF power amplifier is processing other signals, it is possible to avoid the fact that the RF power amplifier module cannot adjust the first signal, resulting in the transmission of the first signal. time delay.

Optionally, in this embodiment of the present application, the above-mentioned target adjustment parameter includes: a first phase and a first gain value.

The processor 110 is specifically configured to adjust the phase of the signal input from the first signal input end to the first phase through the modem of the radio frequency power amplifying module to obtain the third signal; and through the first power amplifying unit, according to the first gain value , performing scaling processing on the third signal; and obtaining the target spurious signal based on the second signal and the third signal after scaling processing.

It can be seen from this that since the electronic device can adjust the phase of the signal input from the first signal input end to the first phase, and scale the adjusted signal according to the first gain value to obtain out-of-band spurious signals, the electronic device can The device can accurately obtain a spurious signal with an opposite phase to the spurious signal in the first signal based on the second signal and the out-of-band spurious signal.

Optionally, in this embodiment of the present application, the above-mentioned target adjustment parameter further includes: a second gain value.

The processor 110 is specifically configured to add the second signal and the scaled third signal through the modem to obtain the first spurious signal; and pass the second power amplifying unit of the second radio frequency power amplifier of the radio frequency power amplifying module , and according to the second gain value, amplify the first spurious signal to obtain the target spurious signal.

Optionally, in this embodiment of the present application, the above-mentioned target adjustment parameter further includes: a second phase.

The processor 110 is further configured to adjust the phase of the amplified and processed first spurious signal to the second phase through the phase modulator of the radio frequency power amplification module.

Optionally, in this embodiment of the present application, the processor 110 is further configured to determine the target radiation spurious value according to the target signal.

The radio frequency unit 101 is specifically configured to send a target signal when the target radiation spurious value is less than a preset radiation spurious threshold.

It can be seen that, because the electronic device can determine the target radiation spurious value according to the target signal, to determine whether the spurious signal in the target signal is less, and only send the target signal when it is determined that the spurious signal in the target signal is less. The target signal, therefore, can avoid distortion of the output signal.

Optionally, in this embodiment of the present application, the processor 110 is further configured to adjust the second phase based on the target radiation spurious value when the target radiation spurious value is greater than or equal to a preset radiation spurious threshold; and The phase modulator adjusts the phase of the amplified first spurious signal to the adjusted second phase.

It can be seen from this that, when there are many spurious signals in the target signal, the electronic device can adjust the second phase, and adjust the amplified first spurious signal again according to the adjusted second phase. Therefore, it can be Reduce spurious signals in the signal obtained by RF combining.

It should be understood that, in this embodiment of the present application, the input unit 104 may include a graphics processing unit (graphics processing unit, GPU) 1041 and a microphone 1042. camera) to process the image data of still pictures or videos. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072 . The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts, a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, image playback function, etc.), etc. Additionally, memory 109 may include volatile memory or non-volatile memory, or memory 109 may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (synchronous dynamic random access memory). DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM) , SLDRAM) and direct memory bus random access memory (direct rambus RAM, DRRAM). The memory 109 in this embodiment of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving an operating system, a user interface, and an application program, etc. Modem processors mainly deal with wireless communication signals, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 110 .

Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, each process of the above-mentioned signal processing method embodiment can be achieved, and the same can be achieved. In order to avoid repetition, the technical effect will not be repeated here.

Wherein, the processor is the processor in the electronic device described in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the signal processing method embodiments described above. Each process can achieve the same technical effect. In order to avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.

The embodiments of the present application provide a computer program product, the program product is stored in a storage medium, and the program product is executed by at least one processor to implement the various processes in the above signal processing method embodiments, and can achieve the same technical effect , in order to avoid repetition, it will not be repeated here.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of computer software products that are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk , CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (16)

1. A radio frequency power amplifier, the radio frequency power amplifier comprising:

the input end of the first power amplification unit is connected with the first signal input end of the radio frequency power amplifier;

a first end of the combiner is connected with the output end of the first power amplification unit, and a second end of the combiner is connected with a second signal input end of the radio frequency power amplifier;

a first end of the first coupling unit is connected with a third end of the combiner, and a second end of the first coupling unit is connected with a first signal output end of the radio frequency power amplifier;

the combiner is used for carrying out radio frequency combining on the first signal and the target stray signal;

the first signal is: a signal which is input by the first signal input end and amplified by the first power amplification unit;

the target spurious signal is: a signal obtained based on a second signal and input by the second signal input terminal; the second signal is: the first signal is coupled by the first coupling unit and then is output by the first signal output end; the target spur is in phase opposition to the spur in the first signal.

2. The radio frequency power amplifier of claim 1, further comprising:

a first end of the first switch unit is connected with a second end of the combiner, and a second end of the first switch unit is connected with the second signal input end;

a first end of the first resistor is connected with a third end of the first switch unit, and a second end of the first resistor is grounded;

wherein, when the radio frequency power amplifier is in a first state, a first end of the first switch unit is connected with a second end of the first switch unit;

and under the condition that the radio frequency power amplifier is in a second state, the first end of the first switch unit is connected with the third end of the first switch unit.

3. A radio frequency power amplification module, the radio frequency power amplification module comprising:

a first radio frequency power amplifier, the first radio frequency power amplifier being the radio frequency power amplifier of claim 1 or 2;

the radio frequency power amplification module is respectively connected with a first signal output end and a second signal input end of the first radio frequency power amplifier;

the combiner of the first radio frequency power amplifier is used for performing radio frequency combining on a first signal and a target stray signal;

the first signal is: a signal which is input from a first signal input end of the first radio frequency power amplifier and amplified by a first power amplifying unit of the first radio frequency power amplifier;

the target spurious signal is: the radio frequency power amplification module is obtained based on the second signal; the second signal is: the first signal is coupled through a first coupling unit of the first radio frequency power amplifier, and then is output to a signal of the radio frequency power amplification module through the first signal output end;

the target spur is in phase opposition to the spur in the first signal.

4. The RF power amplification module of claim 3, wherein the RF power amplification module comprises:

a third signal input end of the second radio frequency power amplifier is connected with the first signal output end, the third signal input end of the second radio frequency power amplifier is connected with a second signal output end of the second radio frequency power amplifier, and a third signal output end of the second radio frequency power amplifier is connected with the second signal input end;

a fourth signal input end of the modem is connected with the second signal output end, a fourth signal output end of the modem is connected with a fifth signal input end of the second radio frequency power amplifier, and a fifth signal output end of the modem is connected with the first signal input end;

the fifth signal input end is connected with the third signal output end through a second power amplification unit of the second radio frequency power amplifier;

the modem is used for obtaining a first stray signal based on the second signal;

the second power amplifying unit is configured to amplify the first spurious signal to obtain the target spurious signal.

5. The RF power amplification module of claim 4, further comprising:

a first end of the second switch unit is connected with the third signal output end, a second end of the second switch unit is connected with the second signal input end, and a third end of the second switch unit is connected with the antenna module;

wherein, when the first radio frequency power amplifier is in a first state, the first end of the second switch unit is connected with the second end of the second switch unit;

and under the condition that the first radio frequency power amplifier is in a second state, the first end of the second switch unit is connected with the third end of the second switch unit.

6. The RF power amplification module of claim 5, further comprising:

and a first end of the phase modulator is connected with a second end of the second switch unit, and a second end of the phase modulator is connected with the second signal input end.

7. An electronic device, characterized in that the electronic device comprises a radio frequency power amplification module according to any one of claims 3 to 6.

8. A signal processing method applied to the electronic device according to claim 7, the method comprising:

under the condition that target transmitting power required by the electronic equipment is greater than a preset power threshold, determining target adjusting parameters corresponding to the target transmitting power by adopting N incidence relations, wherein each incidence relation is an incidence relation between one transmitting power and one adjusting parameter, and N is a positive integer;

through the radio frequency power amplification module of the electronic equipment, the target stray signal is obtained based on a second signal by adopting the target adjusting parameter, wherein the second signal is as follows: after a first signal is coupled through a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, the first signal is output to a signal of a radio frequency power amplification module of the radio frequency power amplification module through a first signal output end of the first radio frequency power amplifier, and the first signal is: a signal which is input from a first signal input end of the first radio frequency power amplifier and amplified by a first power amplifying unit of the first radio frequency power amplifier;

performing radio frequency combination on the first signal and the target stray signal through a combiner of the first radio frequency power amplifier, and sending a target signal obtained after the radio frequency combination;

wherein the target spur is in phase opposition to a spur in the first signal.

9. The method of claim 8, wherein determining the target adjustment parameter corresponding to the target transmission power by using N association relationships when the target transmission power required by the electronic device is greater than a preset power threshold includes:

under the condition that the electronic equipment is in a target working state and the target transmitting power is greater than a preset power threshold, determining the target adjusting parameter by adopting the N incidence relations;

before the obtaining of the target spurious signal based on the second signal by the radio frequency power amplification module of the electronic device using the target adjustment parameter, the method further includes:

controlling the first radio frequency power amplifier to be in a first state.

10. The method of claim 9, further comprising:

and under the condition that the electronic equipment is not in the target working state, controlling the first radio frequency power amplifier to be in a second state and sending the first signal.

11. The method of claim 8, wherein the target adjustment parameter comprises: a first phase and a first gain value;

the radio frequency power amplification module through the electronic equipment adopts the target adjusting parameter and obtains a target stray signal based on the second signal, and the method comprises the following steps:

adjusting the phase of the signal input by the first signal input end to the first phase through a modem of the radio frequency power amplification module to obtain a third signal;

scaling, by the first power amplification unit, the third signal according to the first gain value;

and obtaining the target stray signal based on the second signal and the scaled third signal.

12. The method of claim 11, wherein the target adjustment parameter further comprises: a second gain value;

obtaining the target spurious signal based on the second signal and the scaled third signal, including:

adding the second signal and the scaled third signal by the modem to obtain a first spurious signal;

and amplifying the first stray signal according to the second gain value through a second power amplification unit of a second radio frequency power amplifier of the radio frequency power amplification module to obtain the target stray signal.

13. The method of claim 12, wherein the target adjustment parameter further comprises: a second phase;

before obtaining the target spur, the method further includes:

and adjusting the phase of the amplified first stray signal to the second phase through a phase modulator of the radio frequency power amplification module.

14. The method of claim 13, wherein before transmitting the target signal after the rf combining, the method further comprises:

determining a target radiation stray value according to the target signal;

the target signal obtained after the radio frequency is sent and combined comprises:

and sending the target signal under the condition that the target radiation stray value is smaller than a preset radiation stray threshold.

15. The method of claim 14, further comprising:

adjusting the second phase based on the target radiation spurious value when the target radiation spurious value is greater than or equal to the preset radiation spurious threshold;

the phase of the amplified first spur is adjusted by the phase modulator to an adjusted second phase.

16. A signal processing apparatus, characterized in that the signal processing apparatus comprises: the device comprises a determining module, a control module and a sending module;

the determining module is configured to determine a target adjustment parameter corresponding to a target transmission power by using N association relations under a condition that the target transmission power required by the signal processing apparatus is greater than a preset power threshold, where each association relation is an association relation between one transmission power and one adjustment parameter, and N is a positive integer;

the control module is configured to obtain, by the radio frequency power amplification module of the signal processing apparatus, a target spurious signal based on a second signal by using the target adjustment parameter determined by the determination module, where the second signal is: after a first signal is coupled through a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, the first signal is output to a signal of a radio frequency power amplification module of the radio frequency power amplification module through a first signal output end of the first radio frequency power amplifier, and the first signal is: a signal which is input from a first signal input end of the first radio frequency power amplifier and amplified by a first power amplifying unit of the first radio frequency power amplifier; the first signal and the target stray signal are subjected to radio frequency combination through a combiner of the first radio frequency power amplifier;

the transmitting module is used for transmitting a target signal obtained after the control module controls the radio frequency combination;

wherein the target spur is in phase opposition to a spur in the first signal.

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