CN114499575A

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

Info

Publication number: CN114499575A
Application number: CN202210073484.7A
Authority: CN
Inventors: 陈芳胜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-05-13
Anticipated expiration: 2042-01-21
Also published as: CN114499575B

Abstract

The application discloses a radio frequency power amplifier, a module, electronic equipment, a signal processing method and a signal processing device, and belongs to the technical field of communication. The radio frequency power amplifier includes: and the input end of the first power amplification unit is connected with the first signal input end of the radio frequency power amplifier. And 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. And a first end of the first coupling unit is connected with the third end of the combiner, and a second end of the first coupling unit is connected with the 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 target spur is in phase opposition to the spur in the first signal.

Description

Radio frequency power amplifier, module, electronic equipment, signal processing method and device

Technical Field

The application belongs to the technical field of communication, and particularly relates to a radio frequency power amplifier, a module, electronic equipment, a signal processing method and a signal processing device.

Background

Currently, in the fifth generation mobile communication technology (5G), electronic devices with high transmission power can be used for communication, so as to meet the communication requirements of high speed, low time delay and wide signal coverage, thereby improving the communication performance of the electronic devices.

However, during communication of an electronic device with high transmission power, an Adjacent Channel Leakage Ratio (ACLR) of the electronic device may be large, which may result in low linearity of a radio frequency power amplifier of the electronic device, so that a signal output by the radio frequency power amplifier includes a spurious signal, and thus, a signal output by the radio frequency power amplifier may be distorted.

As such, poor communication performance of electronic devices with high transmission power may result.

Disclosure of Invention

An object 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 a signal processing device, 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, including: and the input end of the first power amplification unit is connected with the first signal input end of the radio frequency power amplifier. And 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. And a first end of the first coupling unit is connected with the third end of the combiner, and a second end of the first coupling unit is connected with the 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: the signal is input by the first signal input end and amplified by the first power amplification unit; the target spurious signals are: a signal obtained based on the 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.

In a second aspect, an embodiment of the present application provides a radio frequency power amplification module, including: a first rf power amplifier, the first rf power amplifier being an rf power amplifier as described in the first aspect. And the radio frequency power amplification module is respectively connected with the first signal output end and the 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 signals are: the radio frequency power amplification module is obtained based on the second signal; the second signal is: the first signal is coupled by a first coupling unit of a first radio frequency power amplifier and then is output to a signal of a radio frequency power amplification module by a first signal output end; the target spur is in phase opposition to the spur in the first signal.

In a third aspect, an embodiment of the present application provides an electronic device, which includes the radio frequency power amplification module according to the second aspect.

In a fourth aspect, an embodiment of the present application provides a signal processing method, including: under the condition that target transmitting power required by 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 electronic equipment, adopt the target adjustment parameter, based on the second signal, obtain the target spurious signal, this second signal is: after being coupled by a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, a first signal is output to a signal of the radio frequency power amplification module from 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 is amplified by a first power amplifying unit of the first radio-frequency power amplifier; and 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 phase of the target spurious signal is opposite to that of the spurious signal in the first signal.

In a fifth aspect, an embodiment of the present application provides a signal processing apparatus, including: 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 used for obtaining a target stray signal based on a second signal by adopting the target adjusting parameter determined by the determining module through the radio frequency power amplifying module of the signal processing device, wherein the second signal is as follows: after being coupled by a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, a first signal is output to a signal of the radio frequency power amplification module from 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; and the first signal and the target stray signal are subjected to radio frequency combination through a combiner of the first radio frequency power amplifier. And the sending module is used for sending the target signal obtained after the control module controls the radio frequency combination. Wherein the phase of the target spurious signal is opposite to that of the spurious signal in the first signal.

In a sixth aspect, embodiments of the present application provide an electronic device, which includes a processor and a memory, where the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the method according to the fourth aspect.

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

In an eighth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the fourth aspect.

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

In an embodiment of the present application, a radio frequency power amplifier includes: the combiner can carry out radio frequency combining on a first signal which is input by the first signal input end and is amplified by the first power amplification unit and a target stray signal (the phase of the target stray signal is opposite to that of the stray signal in the first signal) which is obtained based on the second signal and is input by the second signal input end; the second signal is a signal output by the first signal output end after the first signal is coupled by the first coupling unit. In the communication process, the signal input by the radio frequency power amplifier can be amplified by the first power amplifying unit to obtain a first signal, and the first signal can be input to the combiner and coupled by the first coupling unit to output the radio frequency power amplifier, so that a target spurious signal with a phase opposite to that of the spurious signal in the first signal can be obtained based on the signal (i.e., the second signal) output by the radio frequency power amplifier and input to the combiner.

Drawings

Fig. 1 is a schematic structural diagram of a radio frequency power amplifier according to an embodiment of the present application;

fig. 2 is a second schematic structural diagram of an rf power amplifier according to an embodiment of the present application;

fig. 3 is a third schematic structural diagram of a radio frequency power amplifier according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an rf power amplifying module according to an embodiment of the present disclosure;

fig. 5 is a second schematic structural diagram of an rf power amplifying module according to an embodiment of the present disclosure;

fig. 6 is a third schematic structural diagram of an rf power amplifying module according to an embodiment of the present disclosure;

fig. 7 is a fourth schematic structural diagram of an rf power amplifying module according to an embodiment of the present disclosure;

fig. 8 is a schematic flowchart of a signal processing method according to an embodiment of the present application;

fig. 9 is a second schematic flowchart of a signal processing method according to an embodiment of the present application;

fig. 10 is a third schematic flowchart of a signal processing method according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a signal processing apparatus according to an embodiment of the present application;

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

fig. 13 is a hardware schematic diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

Terms related to the embodiments of the present application will be described below.

1. Adjacent Channel Leakage Ratio (ACLR)

The adjacent channel leakage ratio is a measure of the amount of transmitted rf energy generated by the output power amplifier outside the intended use of the transmission channel, and must be accurately measured due to interference and disruption of the intended requirements.

2. Other terms

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

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

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

Optionally, in this embodiment of the application, the first power amplifying unit 10 may specifically be a power amplifier tube. The first power amplifying unit 10 may process (e.g., scale or amplify) 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 application, the combiner 11 may specifically be: two-in 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 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 terminal of the combiner 11 may be indirectly connected to the output terminal of the first power amplifying unit 10 through a single-pole double-throw switch.

Optionally, in this embodiment of the 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 first coupling unit 12 couples the signal output terminals of the signal lines.

Optionally, in this embodiment of the 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.

Alternatively, in this embodiment, in combination with fig. 1, the second terminal of the first coupling unit 12 may be connected to the first signal output terminal Tx1 through a third switching unit. The third switching unit may specifically be: single pole double throw switch.

Further alternatively, in the embodiment of the present application, the movable terminal of the third switching unit may be connected to the second terminal of the first coupling unit 12, and the fixed terminal of the third switching unit is connected to the first signal output terminal Tx 1.

In the embodiment of the present application, with reference to fig. 1, the combiner is configured to combine the first signal and the target spurious signal by using radio frequency; the first signal is: a signal which is input from a first signal input terminal Rx1 and amplified by the first power amplifying unit 10; the target spur is: a signal derived based on the second signal and input by a second signal input terminal Rx 2; the second signal is: the first signal is coupled by the first coupling unit 12, and is outputted from the first signal output terminal Tx 1.

It is understood that the signal input from the first signal input terminal Rx1 can be amplified by the first power amplifying unit 10 to obtain a first signal. Then, the first signal may enter the first coupling unit 12 from the first end of the first coupling unit 12 through the first end and the third end of the combiner 11, and then the second signal is obtained after the first signal is coupled by the first coupling unit 12. In this way, the second signal may pass through the second end of the first coupling unit 12, and the rf power amplifier may be output from the first signal output terminal Tx1, so that the target spurious signal may be input from the second signal input terminal Rx2 to the second end of the combiner 11, so that the combiner 11 may combine the first signal and the target spurious signal at radio frequency.

Optionally, in this embodiment of the 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. The target component may be a signal generating device.

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

The radio frequency power amplification module may specifically be: a third radio frequency power amplifier; or may be the third rf power amplifier and modem. Here, the third rf power amplifier may have the same or different structure as the rf power amplifier; in the case that the third rf power amplifier and the rf power amplifier have different structures, the third rf power amplifier may specifically be: a related art radio frequency power amplifier.

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

In the embodiment of the present application, the phase of the target spur is opposite to the phase of the spur in the first signal.

It will be appreciated that the target spur is in phase opposition to the spur in the first signal, so that a significant portion of the spur in the first signal is cancelled after rf combining by combiner 11.

Optionally, in the 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.

In the case where the waveform and amplitude of the target spurious signal are the same as those of the spurious signal in the first signal, after the radio frequency combining by the combiner 11, most of the spurious signal in the first signal can be eliminated.

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

It can be understood that, after the combiner 11 combines the first signal and the target spurious signal by radio frequency, the signal after radio frequency combining may be output to the antenna module by the sixth signal output end, so as to transmit the signal after radio frequency combining.

In the embodiment of the present application, during a communication process, a 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, where the first signal may include a spurious signal. Thus, the rf power amplifier may couple the first signal via the first coupling unit 12 and output the first signal via the first signal output terminal Tx1 to obtain a target spurious signal, which is opposite in phase to the spurious signal in the first signal, so that the combiner 11 of the rf power amplifier may combine the first signal with the target spurious signal at the radio frequency to eliminate most of the spurious signal in the first signal, so as to obtain a signal containing only a small amount of spurious signal.

The radio frequency power amplifier provided by the embodiment of the application comprises: the combiner can carry out radio frequency combining on a first signal which is input by the first signal input end and is amplified by the first power amplification unit and a target stray signal (the phase of the target stray signal is opposite to that of the stray signal in the first signal) which is obtained based on the second signal and is input by the second signal input end; the second signal is a signal output by the first signal output end after the first signal is coupled by the first coupling unit. In the communication process, the signal input by the radio frequency power amplifier can be amplified by the first power amplifying unit to obtain a first signal, and the first signal can be input to the combiner and coupled by the first coupling unit to output the radio frequency power amplifier, so that a target spurious signal with a phase opposite to that of the spurious signal in the first signal can be obtained based on the signal (i.e., the second signal) output by the radio frequency power amplifier and input to the combiner.

In addition, the combiner can combine the first signal and the target spurious signal in radio frequency to eliminate most of the spurious signal in the first signal, so that 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, where the target device is processing other signals, and therefore, in one state, the second terminal of the combiner 11 may be controlled to be on with the second signal input terminal Rx2, and in another state, the second terminal of the combiner 11 may be controlled to be off with the second signal input terminal Rx 2.

Optionally, in this embodiment of the application, with reference to fig. 2, as shown in fig. 3, the radio frequency power amplifier further includes: a first switch unit 14, a first end 141 of the first switch unit 14 is connected to the second end of the combiner, and a second end 142 of the first switch unit 14 is connected to the second signal input terminal Rx 2; a first resistor R1, a first terminal of the first resistor R1 is connected to the third terminal 143 of the first switch unit 14, and a second terminal of the first resistor R1 is grounded.

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

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

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

Further optionally, in this embodiment of the application, when the target device does not process other signals, the radio frequency power amplifier may be controlled to be in the first state, so that the second end of the combiner 11 is conducted with the second signal input end Rx2, and thus the radio frequency power amplifier may output a signal that does not include the spurious signal (i.e., a signal obtained by radio frequency combining the first signal and the target spurious signal by the combiner 11).

In the case where the target component is processing other signals, the radio frequency power amplifier may be controlled to be in the second state, so that the second terminal of the combiner 11 is disconnected from the second signal input terminal Rx2, and the radio frequency power amplifier may output a signal (i.e., the first signal) including a spurious signal.

Therefore, 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 with different ends of the first switch unit, the radio frequency power amplifier can output different signals, and the compatibility between the radio frequency power amplifier and other components can be improved.

Fig. 4 is a schematic diagram illustrating a possible structure of a radio frequency power amplification module according to an embodiment of the present disclosure, where as shown in fig. 4, the radio frequency power amplification module includes: a first rf power amplifier 20, wherein the first rf power amplifier 20 is the rf power amplifier in the above embodiment; and the rf power amplifying module 21, wherein the rf power amplifying module 21 is respectively connected to the first signal output terminal Tx1 and the second signal input terminal Rx2 of the first rf power amplifier 20.

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

In the embodiment of the present application, referring to fig. 4, the combiner 22 of the first rf power amplifier 20 is configured to combine the first signal with the target spurious signal at radio frequency; the first signal is: a signal which is input at a first signal input terminal Rx1 of the first rf power amplifier 20 and amplified by the first power amplifying unit 23 of the first rf power amplifier 20; the target spur is: the radio frequency power amplification module 21 is obtained based on the second signal; the second signal is: the first signal is coupled by the first coupling unit 24 of the first rf power amplifier 20, and then outputted to the rf power amplifying module 21 from the first signal output terminal Tx 1.

In the embodiment of the present application, during the communication process, after a signal input by the first signal input end Rx1 of the first radio frequency power amplifier 20 is amplified by the first power amplifying unit 23, a first signal may be obtained, where the first signal may include a spurious signal. In this way, the first rf power amplifier 20 may couple the first signal through the first coupling unit 24, and output the first signal to the rf power amplifying module 21 through the first signal output terminal Tx1, so that the rf power amplifying module 21 may obtain a target spurious signal based on the second signal, and input the target spurious signal to the combiner 22 through the second signal input terminal Rx2, and the combiner 22 may perform rf combining on the first signal and the target spurious signal to eliminate most of the spurious signal in the first signal, so as to obtain a signal including only a small amount of spurious signal.

The radio frequency power amplification module provided in the embodiment of the present application includes a first radio frequency power amplifier, and a radio frequency power amplification module respectively connected to a first signal output terminal and a second signal input terminal of the first radio frequency power amplifier, so that the combiner can perform radio frequency combining on a first signal input by the first signal input terminal and amplified by the first power amplification unit, and a target spurious signal (the phase of the target spurious signal is opposite to that of a spurious signal in the first signal) obtained by the radio frequency power amplification module based on the second signal and input by the second signal input terminal; the second signal is a signal output by the first signal output end after the first signal is coupled by the first coupling unit. In the communication process, the signal input by the first rf power amplifier may be amplified by the first power amplifying unit to obtain a first signal, and the first signal may be input to the combiner and coupled by the first coupling unit and output to the rf power amplifying module, so that the rf power amplifying module may obtain a target spurious signal with a phase opposite to that of the spurious signal in the first signal based on the signal (i.e., the second signal) output by the first rf power amplifier and input to the combiner, so that the combiner may combine the first signal with the target spurious signal to eliminate most of the spurious signal in the first signal, thereby preventing the signal output by the first rf power amplifier from including a large amount of spurious signals, and further preventing the signal output by the first rf power amplifier from being distorted, the communication performance of the electronic device can be improved.

The following description will take an example in which the rf power amplifying module is a third rf power amplifier and a modem, and the third rf power amplifier is different from the first rf power amplifier 20 in structure.

Optionally, in this embodiment of the application, with reference to fig. 4, as shown in fig. 5, the radio frequency power amplifying module 21 includes: a second rf power amplifier 25, wherein the third signal input terminal Rx3 of the second rf power amplifier 25 is connected to the first signal output terminal Tx1, the third signal input terminal Rx3 is connected to the second signal output terminal Tx2 of the second rf power amplifier 25, and the third signal output terminal Tx3 of the second rf power amplifier 25 is connected to the second signal input terminal Rx 2; a modem 26, wherein the fourth signal input terminal Rx4 of the modem 26 is connected to the second signal output terminal Tx2, the fourth signal output terminal Tx4 of the modem 26 is connected to the fifth signal input terminal Rx5 of the second rf power amplifier 25, and the fifth signal output terminal Tx5 of the modem 26 is connected to the first signal input terminal Rx 1; the fifth signal input terminal Rx5 is connected to the third signal output terminal Tx3 through the second power amplifying unit 27 of the second rf power amplifier 25.

It is understood that the second rf power amplifier 25 may be an rf power amplifier in the related art, and the second rf power amplifier 25 may be regarded as an error amplifier for feed-forward linearization of the first rf power amplifier 20.

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

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

In the embodiment of the present application, in conjunction with fig. 5, the third signal input terminal Rx3 may pass through the fourth switch unit 28 and the second signal output terminal Tx 2. The fourth switching unit 28 may specifically be: single pole double throw switch.

Further alternatively, in the embodiment of the present application, with reference to fig. 5, one moving end of the fourth switching unit 28 may be connected to the third signal input terminal Rx3, the other moving end may be connected to the output terminal of the coupling signal line of the second coupling unit 29 of the second rf power amplifier 25, and the fixed end of the fourth switching unit 28 is connected to the second signal output terminal Tx 2.

In this embodiment, the modem 26 is configured to obtain a first spurious signal based on the second signal; the second power amplifying unit 27 is configured to amplify the first spurious signal to obtain a target spurious signal.

Further alternatively, in this embodiment of the application, the modem 26 may detect the second signal, and then adjust the phase of the signal at the first signal input terminal Rx1 to a set phase (for example, a first phase in the following embodiment) according to the detection result, and control the first power amplifying unit 23 to perform scaling processing on the signal after adjusting the phase according to a set gain value 1 (for example, a first gain value in the following embodiment), so that the signal after scaling processing is coupled by the first coupling unit 24, output from the first signal output terminal Tx1 to the third signal input terminal Rx3, and enter the modem 26 from the second signal output terminal Tx2 through the fourth signal input terminal Rx4, so that the modem 26 may add the second signal and the coupled signal to obtain a first spurious signal (a simple out-of-band signal). Accordingly, the first spurious signal may 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 may control the second power amplifying unit 27 to amplify the first spurious signal according to the set gain value 2 (e.g., the second gain value in the following embodiments) to obtain the target spurious signal.

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

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

Further optionally, in this embodiment of the application, the second switch unit 30 may specifically be: single pole double throw switch. The first end 301 of the second switch unit 30 may be a fixed end, and the second end 302 and the third end 303 may both be moving ends.

In the embodiment of the present application, when the first rf 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; when the first rf power amplifier 20 is in the second state, the first terminal 301 of the second switching unit 30 is connected to the third terminal 303 of the second switching unit 30.

Further optionally, in this embodiment of the application, in a case where the second rf power amplifier 25 does not process other signals, the first rf power amplifier 20 is in the first state. At this time, one moving terminal of the third switching unit of the first radio frequency power amplifier 20 may be connected to the fixed terminal such that the second terminal of the first coupling unit 24 is connected to the first signal output terminal Tx 1; and the first terminal of the first switch unit of the first rf power amplifier 20 is connected to the second terminal, so that the second terminal of the combiner 22 is connected to the second signal input terminal Rx 2; and one moving terminal of the fourth switching unit 28 is connected to the stationary terminal such that the third signal input terminal Rx3 is connected to the second signal output terminal Tx 2; and the first terminal 301 and the second terminal 302 of the second switch unit 30 are connected, so that the third signal output terminal Tx3 is connected to the second signal input terminal Rx2, so that the rf power amplification module can output a signal without including the spurious signal (i.e., a signal obtained by rf combining the first signal and the target spurious signal by the combiner 22).

In the case where the second rf power amplifier 25 is processing other signals, the first rf power amplifier 20 is in the second state. At this time, the other moving terminal of the third switching unit may be connected with the stationary terminal such that the second terminal of the first coupling unit 24 is disconnected from the first signal output terminal Tx 1; and the first terminal of the first switching unit is connected to the third terminal, so that the second terminal of the combiner 22 is disconnected from the second signal input terminal Rx 2; and the other movable terminal of the fourth switching unit 28 is connected to the stationary terminal, so that the third signal input terminal Rx3 is disconnected from the second signal output terminal Tx 2; and the first terminal 301 and the third terminal 303 of the second switching unit 30 are connected to disconnect the third signal output terminal Tx3 from the second signal input terminal Rx2, so that the rf power amplifying module can output a signal (i.e., the first signal) including a spurious signal.

In the embodiment of the present application, in a case that the second rf power amplifier 25 is processing other signals, the signal output by the second rf power amplifier 25 may be output to the antenna module 31 to transmit the signal.

Therefore, under the condition that the first radio-frequency power amplifier is in different states, the first end of the second switch unit can be connected with different ends of the second switch unit, so that the first radio-frequency power amplifier can output different signals, and the compatibility between the radio-frequency power amplification module and other components can be improved.

Optionally, in this embodiment of the application, with reference to fig. 6, the radio frequency power amplifying module further includes: a phase modulator 32, a first terminal of phase modulator 32 being connected to second terminal 302 of second switching unit 30, a second terminal of phase modulator 32 being connected to a second signal input terminal Rx 2.

It will be appreciated 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 alternatively, in the present embodiment, 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.

Therefore, as the phase modulator is further arranged 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 through the phase modulator, so that the phase of the target spurious signal is opposite to that of the spurious signal in the first signal, and the spurious signal in the first signal can be accurately cleared.

Fig. 7 is a schematic diagram illustrating a possible structure of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 7, the electronic device includes the rf power amplifying module 40 in the foregoing embodiment.

Optionally, in this embodiment of the application, the electronic device may specifically be: high emission power electronic devices.

Further optionally, in this embodiment of the application, the high transmission power specifically means that the power for transmitting the radio frequency signal is large.

Optionally, in this embodiment, with reference to fig. 7, a Central Processing Unit (CPU) of the electronic device is connected to the rf power amplifying module 40.

Optionally, in this embodiment of the application, when the electronic device is in the target working state, the electronic device may control the first radio frequency power amplifier of the radio frequency power amplification module 40 to be in the first state; the electronic device may control the first radio frequency power amplifier to be in the second state in a case where the electronic device is not in the target operating state.

Further optionally, in this embodiment of the application, the target operating state may be any one of the following: an EUTRA-NR Dual Connectivity (endec) state, and an independent networking (SA) uplink single-shot 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 amplifying module 40 does not process other signals, so that the electronic device may determine whether to control the second rf power amplifier to be turned on according to the required transmission power, and turn on the second rf power amplifier and control the first rf power amplifier to be in the first state when determining to control the second rf power amplifier to be turned on.

In a case where the electronic device is not in the EN-DC state (or the SA upLink single-shot state), for example, in an upLink (upLink, UL) multiple-input multiple-output (MIMO) state, the second rf power amplifier of the rf power amplifying module 40 is processing other signals, so that the electronic device can control the first rf power amplifier to be in the second state.

According to the electronic equipment provided by the embodiment of the application, the electronic equipment comprises a radio frequency power amplification module. In the communication process, a signal input by a first radio frequency power amplifier of the radio frequency power amplification module may be amplified by a first power amplification unit of the first radio frequency power amplifier to obtain a first signal, and the first signal may be input to a combiner of the first radio frequency power amplifier and coupled by a first coupling unit of the first radio frequency power amplifier to be output to a radio frequency power amplification module of the radio frequency power amplification module, so that the radio frequency power amplification module may obtain a target spurious signal with a phase opposite to that of the spurious signal in the first signal based on a signal (i.e., a second signal) output by the first radio frequency power amplifier and input to the combiner, so that the combiner may perform radio frequency combining on the first signal and the target spurious signal to eliminate most of the spurious signal in the first signal, thereby preventing the signal output by the first radio frequency power amplifier from containing a large amount of spurious signals, and then can avoid the signal distortion of first radio frequency power amplifier output, like this, can improve the communication performance of electronic equipment.

Fig. 8 shows a flowchart of a signal processing method according to an embodiment of the present application. As shown in fig. 8, the signal processing method provided in the embodiment of the present application may include steps 101 to 103 described below.

Step 101, under the condition that the target transmitting power required by the signal processing device is greater than a preset power threshold, the signal processing device determines a target adjusting parameter corresponding to the target transmitting power by adopting N incidence relations.

In this embodiment of the present application, the target transmission power may specifically be: the transmission power of the signal to be transmitted by the signal processing means.

Optionally, in this embodiment of the application, the N association relations may specifically be: and the association relationship is prestored in the signal processing device.

In this embodiment, each of the N association relations is an association relation between one transmission power and one adjustment parameter, and N is a positive integer.

Optionally, in this embodiment of the application, for each of the N association relations, the signal processing device may first control the power of a signal input by the first signal input end of the first rf power amplifier of the rf power amplification module to be P1, and then determine an adjustment parameter according to a transmission parameter output by the first signal output end to the modem of the rf power amplification module after the signal is amplified by the first power amplification unit of the first rf power amplifier and coupled by the first coupling unit of the rf power amplification module, so that the signal processing device may establish an association relation between P1 and the adjustment parameter to obtain one association relation, and so on, to obtain the N association relations.

Wherein the transmission parameter may include at least one of: transmission delay, transmission path gain value, transmission path loss value.

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

Illustratively, assume that the N associations include: the signal processing device comprises an incidence relation 1, an incidence relation 2 and an incidence relation 3, wherein the incidence relation 1 is an incidence relation between a transmitting power 1 and an adjusting parameter 1, the incidence relation 2 is an incidence relation between a transmitting power 2 and an adjusting parameter 2, the incidence relation 3 is an incidence relation between a transmitting power 3 and an adjusting parameter 3, the transmitting power 1 is greater than the transmitting power 2 and is less than the transmitting power 3, a target transmitting power is greater than the transmitting power 1, and the target transmitting power is less than the transmitting power 2, the signal processing device can determine two transmitting powers (namely the transmitting power 1 and the transmitting power 2) according to the target transmitting power, and determine a target adjusting parameter according to the adjusting parameter 1 and the adjusting parameter 2.

Further alternatively, in this embodiment of the present application, the signal processing apparatus may employ an interpolation algorithm, and 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 explanation of the interpolation algorithm, reference may be made to specific descriptions in the related art, and details are not repeated herein in the embodiments of the present application.

In this embodiment, the target adjustment parameter is used for adjusting the rf power amplification module according to the first signal.

Optionally, in this embodiment of the present application, with reference to fig. 8, as shown in fig. 9, the step 101 may be specifically implemented by a step 101a described below, and before the step 102, the signal processing method provided in this embodiment of the present application may further include a step 201 described below.

Step 101a, under the condition that the signal processing device is in a target working state and the target transmitting power is greater than a preset power threshold, the signal processing device determines a target adjusting parameter by adopting N incidence relations.

Further optionally, in this embodiment of the application, the target operating state may be any one of the following: EN-DC state, SA uplink single shot state.

In this embodiment of the application, if the target transmission power is greater than the preset power threshold, it may be considered that the transmission power of a signal communicated by the signal processing apparatus is higher, that is, ACLR of the signal processing apparatus may be larger, that is, a signal output by the first rf power amplifier may include a spurious signal; and if the signal processing device is in the target working state, it may be considered that the second rf power amplifier of the rf power amplification module does not process other signals, and therefore, the signal processing device may determine the target adjustment parameter, so that the rf power amplification module may adjust for the first signal.

Step 201, the signal processing device controls the first rf power amplifier to be in a first state.

Further optionally, in this embodiment of the application, the signal processing apparatus may control a movable terminal of a third switching unit of the first radio frequency power amplifier to be connected to the stationary terminal, so that the second terminal of the first coupling unit is connected to the first signal output terminal; controlling the first end and the second end of a first switch unit of the first radio frequency power amplifier to be connected, so that the second end of the combiner is connected with the second signal input end; controlling a movable end of the fourth switching unit to be connected with a fixed end so as to enable the third signal input end to be connected with the second signal output end; and controlling the first end and the second end of the second switch unit to be connected, so that the third signal output end is connected with the second signal input end, and the first radio frequency power amplifier is controlled to be in the first state.

It will be appreciated that in the case where the first rf power amplifier is in the first state, the second rf power amplifier may be considered to be an error amplifier for feed forward linearization of the first rf power amplifier.

Therefore, the signal processing device may determine the target adjustment parameter and control the first rf power amplifier to be in the first state only when the signal output by the first rf power amplifier may include a spurious signal and the second rf power amplifier does not process other signals, so as to avoid a situation that the rf power amplification module cannot adjust the first signal.

Alternatively, in the embodiment of the present application, the step 101a may be replaced by the step 101b described below.

And step 101b, under the condition that the signal processing device is not in the target working state, the signal processing device controls the first radio frequency power amplifier to be in the second state and sends the first signal.

In this embodiment, if the signal processing apparatus is not in the target operating state, it may be considered that the second rf power amplifier is processing other signals, and therefore, the signal processing apparatus may control the first rf power amplifier to be in the second state and send the first signal.

Further optionally, in this embodiment of the application, the signal processing device may control another movable end of the third switching unit to be connected with the stationary end, so as to disconnect the second end of the first coupling unit from the first signal output end; the first end and the third end of the first switch unit are controlled to be connected, so that the second end of the combiner is disconnected from the second signal input end; controlling the other movable end of the fourth switching unit to be connected with the fixed end so as to disconnect the third signal input end from the second signal output end; and controlling the first end and the third end of the second switch unit to be connected, so that the third signal output end is connected with the second signal input end, and the first radio frequency power amplifier is controlled to be in a second state.

It will be appreciated that with the first rf power amplifier in the second state, the first rf power amplifier may output a first signal and the second rf power amplifier may output other signals.

Therefore, the signal processing device can directly send the first signal under the condition that the second radio frequency power amplifier is processing other signals, so that the time delay of signal sending caused by the fact that the radio frequency power amplifier module cannot adjust the first signal can be avoided.

And 102, the signal processing device obtains a target stray signal by adopting a target adjusting parameter through a radio frequency power amplification module of the signal processing device and based on the second signal.

In an embodiment of the present application, the second signal is: after being coupled by a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, a first signal is output to a signal of the radio frequency power amplification module from a first signal output end of the first radio frequency power amplifier, and the first signal is: the first power amplifying unit is used for amplifying the signal input by the first signal input end of the first radio frequency power amplifier.

Optionally, in this embodiment of the application, the radio frequency power amplification module may perform target adjustment processing on the second signal by using the target adjustment parameter, so as to obtain the target spurious signal.

Wherein the target adjustment process may include at least one of: adjusting the phase of the signal, amplifying the signal and scaling the signal.

And 103, the signal processing device performs radio frequency combination on the first signal and the target stray signal through a combiner of the first radio frequency power amplifier, and sends a target signal obtained after the radio frequency combination.

The phase of the target spurious signal is opposite to that of the spurious signal in the first signal.

In the signal processing method provided in the embodiment of the application, when the target transmission power required by the signal processing device is greater than the preset power threshold, the signal processing device may determine the target adjustment parameter corresponding to the target transmission power according to the N association relationships, and then obtain the target spurious signal based on the second signal by using the target adjustment parameter through the radio frequency power amplification module, so that the signal processing device may perform radio frequency combining on the first signal (where the phase of the spurious signal in the first signal is opposite to the phase of the target spurious signal) input by the first radio frequency power amplifier and the target spurious signal through the combiner, and send the target signal obtained after the radio frequency combining. In the process that the signal processing device determines that the signal processing device is carrying out high-transmission-power communication, the signal processing device can determine a target adjusting parameter according to the N association relations, and obtain a target spurious signal with a phase opposite to that of a spurious signal in a signal (namely a first signal) input by the first radio-frequency power amplifier through the radio-frequency power amplification module by adopting the target adjusting parameter based on the second signal, and carry out radio-frequency combination on the first signal and the target spurious signal through the combiner to eliminate most of the spurious signal in the first signal, so that the signal output by the first radio-frequency power amplifier can be prevented from containing a large amount of spurious signals, and further the signal distortion output by the first radio-frequency power amplifier can be avoided, and therefore, the communication performance of the signal processing device can be improved.

As will be illustrated below, how the rf power amplifying module obtains the target spur based on the second signal by using the target adjustment parameter.

Optionally, in an embodiment of the present application, the target adjustment parameter includes: a first phase and a first gain value. Specifically, as shown in fig. 10 in conjunction with fig. 8, the step 102 may specifically be a step 102a to a step 102c described below.

Step 102a, the signal processing device 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 amplification module, so as to obtain a third signal.

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

Further optionally, in this embodiment of the application, in the case that the second signal is input into the modem, the modem may detect the feedback result, and then adjust the phase of the signal input at the first signal input end to the first phase.

And 102b, the signal processing device performs scaling processing on the third signal through the first power amplification unit according to the first gain value.

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

And 102c, the signal processing device obtains a target stray signal based on the second signal and the scaled third signal.

In the embodiment of the present application, the scaled third signal and the second signal have equal values and opposite phases.

Further optionally, in this embodiment of the application, the scaled third signal may be coupled by the first coupling unit and then output to the modem through the first output terminal, so that the modem may obtain the target spurious signal according to the previously input second signal and the scaled third signal.

Optionally, in this embodiment of the application, the target adjustment parameter further includes: a second gain value. Specifically, the step 102c may be realized by the following steps 102c1 and 102c 2.

Step 102c1, the signal processing apparatus adds the second signal and the scaled third signal via the modem to obtain a first spurious signal.

It is understood that the first spur is a pure out-of-band spur.

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

Step 102c2, the signal processing apparatus amplifies the first spurious signal according to the second gain value by the second power amplifying unit of the second rf power amplifier of the rf power amplifying module, so as to obtain the target spurious signal.

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

It should be noted that, for the description that the second power amplifying unit amplifies the first spurious signal according to the second gain value, reference may be made to specific descriptions in the related art, and details of the embodiment of the present application are not repeated herein.

Optionally, in this embodiment of the application, the target adjustment parameter further includes: a second phase. Specifically, before the "obtaining the target spurious signal" in the step 102c2, the signal processing method provided in the embodiment of the present application may further include the following step 301, and the step 102c2 may be specifically implemented by the following step 102c 21.

Step 301, the signal processing apparatus amplifies the first spurious signal according to the second gain value by the second power amplifying unit of the second rf power amplifier of the rf power amplifying module, and adjusts the phase of the amplified first spurious signal to the second phase by the phase modulator of the rf power amplifying module.

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

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

Therefore, the phase of the signal input by the first signal input end can be adjusted to be the first phase by the signal processing device, and the adjusted signal is subjected to scaling processing according to the first gain value to obtain the out-of-band spurious signal, so that the signal processing device can accurately obtain the spurious signal with the phase opposite to that of 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, before the "target signal obtained after the radio frequency is combined" in the step 103, the signal processing method provided in this embodiment of the present application may further include the following step 401, and the step 103 may be specifically realized by the following step 103 a.

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

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

Step 103a, under the condition that the target radiation stray value is smaller than a preset radiation stray threshold, the signal processing device sends a target signal.

In this embodiment, if the target spurious radiation value is smaller than the predetermined spurious radiation threshold, it may be considered that spurious signals in the target signal are reduced, and therefore, the signal processing apparatus may send the target signal.

Therefore, the signal processing device can determine the target radiation stray value according to the target signal to determine whether the stray signal in the target signal is less, and transmit the target signal under the condition of determining that the stray signal in the target signal is less, so that the distortion of the output signal can be avoided.

Alternatively, in the embodiment of the present application, the step 103a may be replaced by the following step 103b and step 103 c.

And 103b, under the condition that the target radiation stray value is greater than or equal to the preset radiation stray threshold, the signal processing device adjusts a second phase based on the target radiation stray value.

In this embodiment, if the target spurious radiation value is greater than or equal to the predetermined spurious radiation threshold, it may be considered that more spurious signals still exist in the target signal, and therefore, the signal processing apparatus may adjust the second phase based on the target spurious radiation value.

It should be noted that, for the description of the signal processing apparatus adjusting the second phase based on the target radiation stray value, reference may be made to specific descriptions in the related art, and details of the embodiment of the present application are not repeated herein.

Step 103c, the signal processing device adjusts the phase of the amplified first spur signal to the adjusted second phase by the phase adjuster.

Further optionally, in this embodiment of the application, after the phase of the amplified first spurious signal is adjusted to the adjusted second phase by the phase adjuster, the signal processing apparatus may further perform radio frequency combining on the first signal and the adjusted first spurious signal by the combiner, and determine the radiation spurious value again according to the signal after the radio frequency combining, and perform step 103b and step 103c again when the radiation spurious value is greater than or equal to the preset radiation spurious threshold, until the radiation spurious value is less than the preset radiation spurious threshold.

Therefore, under the condition that the number of the spurious signals in the target signal is large, the signal processing device can adjust the second phase and adjust the first spurious signal after amplification processing again according to the adjusted second phase, so that the spurious signals in the signals obtained by radio frequency combining can be reduced.

In the signal processing method provided by the embodiment of the application, the execution main body can be a signal processing device. In the embodiment of the present application, a signal processing apparatus executing a signal processing method is taken as an example to describe the signal processing apparatus provided in the embodiment of the present application.

Fig. 11 shows a schematic diagram of a possible structure of the signal processing apparatus according to the embodiment of the present application. As shown in fig. 11, the signal processing device 60 may include: a determination module 61, a control module 62 and a transmission module 63.

The determining module 61 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 60 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. A control module 62, configured to obtain, by using the rf power amplification module of the signal processing apparatus 60 and using the target adjustment parameter determined by the determining module 61, a target spurious signal based on a second signal, where the second signal is: after being coupled by a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, a first signal is output to a signal of the radio frequency power amplification module from 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; and the first signal and the target stray signal are subjected to radio frequency combination through a combiner of the first radio frequency power amplifier. And the sending module 63 is configured to send the target signal obtained by controlling the radio frequency combining by the control module 62. Wherein the phase of the target spurious signal is opposite to that of the spurious signal in the first signal.

In a possible implementation manner, the determining module 61 is specifically configured to determine the target adjustment parameter by using N association relationships when the signal processing apparatus 60 is in the target operating state and the target transmission power is greater than the preset power threshold. The control module 62 is further configured to control the first rf power amplifier to be in the first state.

In a possible implementation manner, the control module 62 is further configured to control the first rf power amplifier to be in the second state and transmit the first signal if the signal processing apparatus 60 is not in the target operating state.

In a possible implementation manner, the target adjustment parameter includes: a first phase and a first gain value. The control module 62 is specifically configured to adjust a phase of a signal input from the first signal input end to a first phase through a modem of the radio frequency power amplification module, so as to obtain a third signal; the third signal is subjected to scaling processing according to the first gain value through the first power amplification unit; and obtaining a target stray signal based on the second signal and the scaled third signal.

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

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

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

In a possible implementation manner, the control module 62 is further configured to, in a case that the target radiation stray value is greater than or equal to a preset radiation stray threshold, adjust the second phase based on the target radiation stray value; and the phase of the amplified first spur is adjusted to the adjusted second phase by a phase modulator.

In the signal processing apparatus provided in the embodiment of the present application, in the process of determining that the signal processing apparatus is performing high transmission power communication, the signal processing apparatus may determine the target adjustment parameter according to the N association relationships, and a target spurious signal with a phase opposite to that of the spurious signal in the signal (i.e. the first signal) input by the first radio frequency power amplifier is obtained based on the second signal by the radio frequency power amplification module by adopting the target adjustment parameter, and the first signal and the target spurious signal are combined by a combiner in radio frequency to eliminate most of the spurious signal in the first signal, thereby avoiding the signal output by the first radio frequency power amplifier from containing a large amount of stray signals, and further, the signal distortion output by the first radio frequency power amplifier can be avoided, so that the communication performance of the signal processing device can be improved.

The signal processing apparatus in the embodiment of the present application may be an electronic device, and may also 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 a device other than a terminal. The electronic device may be, for example, a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) device, a robot, a wearable device, a super-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like, and the embodiments of the present application are not limited in particular.

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

The signal processing apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 8 to fig. 10, and is not described here again to avoid repetition.

Optionally, in this embodiment, as shown in fig. 12, an electronic device 70 is further provided in this embodiment, and includes a processor 71 and a memory 72, where the memory 72 stores a program or an instruction that can be executed on the processor 71, and when the program or the instruction is executed by the processor 71, the process steps of the signal processing method embodiment are implemented, and the same technical effect can be achieved, and no further description is provided here to avoid repetition.

It should be noted that the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.

Fig. 13 is a schematic hardware structure diagram 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.

Those skilled in the art will appreciate that the electronic device 100 may further comprise a power source (e.g., 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 implement functions of managing charging, discharging, and power consumption through the power management system. The electronic device structure shown in fig. 13 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.

The processor 110 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 electronic device 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; and through the radio frequency power amplification module of electronic equipment, adopt the target to adjust the parameter, based on the second signal, obtain the target spurious signal, this second signal is: after being coupled by a first coupling unit of a first radio frequency power amplifier of the radio frequency power amplification module, a first signal is output to a signal of the radio frequency power amplification module from 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; and performing radio frequency combination on the first signal and the target stray signal through a combiner of the first radio frequency power amplifier.

And the radio frequency unit 101 is configured to send a target signal obtained after radio frequency combining.

Wherein the phase of the target spurious signal is opposite to that of the spurious signal in the first signal.

The electronic device provided by the embodiment of the application, because in the process of determining that the electronic device is carrying out communication with high transmission power at the electronic device, the electronic device can determine the target adjustment parameter according to the N association relations, and through the radio frequency power amplification module, the target adjustment parameter is adopted, the target spurious signal with the phase opposite to that of the spurious signal in the signal (namely, the first signal) input by the first radio frequency power amplifier is obtained based on the second signal, and the first signal and the target spurious signal are subjected to radio frequency combining through the combiner, so as to eliminate most of the spurious signal in the first signal, so that a large amount of spurious signals can be prevented from being contained in the signal output by the first radio frequency power amplifier, and further the signal distortion output by the first radio frequency power amplifier can be avoided, and thus, the communication performance of the electronic device can be improved.

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

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

Therefore, since the electronic device may determine the target adjustment parameter and control the first rf power amplifier to be in the first state only when the signal output by the first rf power amplifier may include a spurious signal and the second rf power amplifier does not process other signals, the situation that the rf power amplification module cannot adjust for the first signal may be avoided.

Optionally, in this embodiment of the 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 operating state.

Therefore, the electronic device can directly transmit the first signal under the condition that the second radio frequency power amplifier is processing other signals, so that the time delay of signal transmission caused by the fact that the radio frequency power amplifier module cannot adjust the first signal can be avoided.

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

The processor 110 is specifically configured to adjust a phase of a signal input from the first signal input end to a first phase through a modem of the radio frequency power amplification module, so as to obtain a third signal; the third signal is subjected to scaling processing according to the first gain value through the first power amplification unit; and obtaining a target stray signal based on the second signal and the scaled third signal.

Therefore, the phase of the signal input by the first signal input end can be adjusted to be the first phase by the electronic equipment, and the adjusted signal is subjected to scaling processing according to the first gain value to obtain the out-of-band spurious signal, so that the electronic equipment can accurately obtain the spurious signal with the phase opposite to that of 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 application, the target adjustment parameter further includes: a second gain value.

A processor 110, configured to add the second signal and the scaled third signal through a modem to obtain a first spurious signal; and the first stray signal is amplified through a second power amplification unit of a second radio frequency power amplifier of the radio frequency power amplification module according to a second gain value to obtain a target stray signal.

Optionally, in this embodiment of the application, the target adjustment parameter further includes: and a second phase.

The processor 110 is further configured to adjust the phase of the amplified first spurious signal to a second phase through a phase modulator of the rf power amplification module.

Optionally, in this embodiment of the application, the processor 110 is further configured to determine a target radiation stray 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 smaller than a preset radiation spurious threshold.

Therefore, the electronic equipment can determine the target radiation stray value according to the target signal to determine whether the stray signal in the target signal is less or not, and transmit the target signal under the condition of determining that the stray signal in the target signal is less, so that the output signal distortion can be avoided.

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

Therefore, under the condition that the number of the spurious signals in the target signal is large, the electronic equipment can adjust the second phase and adjust the amplified first spurious signal again according to the adjusted second phase, so that the spurious signals in the signals obtained by the radio frequency combining can be reduced.

It should be understood that, in the embodiment of the present application, the input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the graphics processing unit 1041 processes image data of a still picture or a video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 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 referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

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 storing a program or an instruction and a second storage area storing data, wherein the first storage area may store an operating system, an application program or an instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, 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 a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memories may be Random Access Memories (RAMs), Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (ddr SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synclink DRAM (SLDRAM), and direct bus RAM (DRRAM). Memory 109 in the embodiments of the subject application includes, but is not limited to, these and any other suitable types of memory.

Processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor, which primarily handles operations involving the operating system, user interface, and applications, etc., and a modem processor, which primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the signal processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

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

The 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 execute a program or an instruction to implement each process of the signal processing method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.

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

Embodiments of the present application provide 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 processes of the foregoing signal processing method embodiments, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

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.