CN114710180A

CN114710180A - Radio frequency processing circuit control method, radio frequency system and wireless communication equipment

Info

Publication number: CN114710180A
Application number: CN202210349348.6A
Authority: CN
Inventors: 熊建才
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-05

Abstract

The embodiment of the application discloses a radio frequency processing circuit control method, a radio frequency system and wireless communication equipment, wherein the radio frequency processing circuit comprises at least two signal paths, each signal path comprises a power amplification module, and the radio frequency processing circuit control method comprises the following steps: carrying out FBRX detection on the radio frequency signal in the current signal path to obtain an FBRX signal of the current signal path; judging whether a power amplification module in a current signal path works abnormally or not according to the power of the FBRX signal; and responding to the judgment result of the abnormal work of the power amplification module in the current signal path, and switching the signal path to the signal path where the power amplification module which works normally is located. The power amplification module is prevented from working in an abnormal state for a long time, the reliability of the power amplification module is ensured, and the user experience is improved.

Description

Radio frequency processing circuit control method, radio frequency system and wireless communication equipment

Technical Field

The disclosed embodiments relate to, but not limited to, the technical field of control circuits, and in particular, to a radio frequency processing circuit control method, a radio frequency system, and a wireless communication device.

Background

With the rapid development of mobile terminals, users and operators have increasingly high requirements on the quality of transmitted and received signals, especially on the quality of transmitted signals. Currently, a transmitted signal generally needs to support simultaneous operations of 2TX (transmissions) such as UL MIMO (uplink multiple input multiple output) or DSDA (dual input dual output), and thus requires two Power Amplifiers (PA) to work simultaneously. However, the PAs have reliability problems, and if one PA is in an abnormal operation state for a long time, the PA may be burned out, so that the ue cannot perform communication.

Disclosure of Invention

The embodiment of the disclosure provides a radio frequency processing circuit control method, a radio frequency system and a wireless communication device, which prevent a power amplification module from working in an abnormal state for a long time and ensure the reliability of the power amplification module.

In one aspect, an embodiment of the present disclosure provides a method for controlling a radio frequency processing circuit, where the radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module, and the method includes:

carrying out FBRX detection on the radio frequency signal in the current signal path to obtain an FBRX signal of the current signal path;

judging whether a power amplification module in a current signal path works abnormally or not according to the power of the FBRX signal;

and responding to the judgment result of the abnormal work of the power amplification module in the current signal path, and switching the signal path to the signal path where the power amplification module which works normally is located.

On the other hand, the embodiment of the present disclosure further provides a radio frequency system, including a radio frequency transceiver, a radio frequency processing circuit and an antenna system, where a signal transmitted by the radio frequency transceiver is processed by the radio frequency processing circuit and then transmitted by the antenna system, where the radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module;

the radio frequency processing circuit further comprises a processor, wherein the processor is configured to perform FBRX detection on a radio frequency signal in a current signal path to obtain an FBRX signal of the current signal path, judge whether a power amplification module in the current signal path works abnormally according to the power of the FBRX signal, and switch the signal path to a signal path where the power amplification module which works normally is located in response to a judgment result that the power amplification module in the current signal path works abnormally.

In still another aspect, an embodiment of the present disclosure further provides a wireless communication device including the foregoing radio frequency system.

According to the embodiment of the invention, whether the power amplification module is in an abnormal state or not is judged through the FBRX detection result, when the power amplification module is detected to work abnormally, the signal path is automatically switched to the power amplification module which works normally, the normal and reliable operation of the terminal where the radio frequency processing circuit is located is ensured, the power amplification module is prevented from working in an abnormal state for a long time, the reliability of the power amplification module is ensured, and the user experience is improved.

Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. Other advantages of the disclosure may be realized and attained by the instrumentalities and methods described in the specification, claims, and drawings.

Drawings

The accompanying drawings are included to provide an understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example serve to explain the principles of the disclosure and not to limit the disclosure. The shapes and sizes of the various elements in the drawings are not to be considered as true proportions, but are merely intended to illustrate the present disclosure.

FIG. 1 is a schematic diagram of an RF processing circuit;

FIG. 2 is a schematic diagram of an RF system;

FIG. 3 is a flowchart illustrating a method for controlling the RF processing circuit according to an embodiment of the disclosure;

fig. 4 is a flowchart illustrating a method for determining whether a power amplifier module is working abnormally according to an embodiment of the disclosure;

fig. 5 is a flowchart of the NSA mode switching to the SA mode according to an embodiment of the present disclosure;

fig. 6 is a flowchart of SA mode 1 switching to SA mode 2 according to an embodiment of the present disclosure;

fig. 7 is a flowchart of switching UL MIMO mode to SA mode according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a radio frequency system according to an embodiment of the disclosure.

Detailed Description

The present disclosure describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described in the present disclosure. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with or instead of any other feature or element in any other embodiment, unless expressly limited otherwise.

The present disclosure includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements of the present disclosure that have been disclosed may also be combined with any conventional features or elements to form unique inventive aspects as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any features shown and/or discussed in this disclosure may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Further, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present disclosure.

Options of the network architecture of the 5G mobile communication system are divided into an SA (stand-alone) mode and an NSA (Non-stand-alone) mode. Wherein options 1, 2, 5, 6 are SA mode, options 3, 4, 7, 8 are NSA mode; options 3, 4, 7 for non-independent networking also have different sub-options.

Taking option 2 as an example, the core architecture of the SA mode is that the control plane and the user plane of the core network are both connected to the handset through the 5G base station. The user plane and the control plane may be completely separate. The control plane is a channel used for sending signaling required by managing and scheduling resources; the user plane is the channel over which user specific data is sent.

Taking option 3 as an example, in the NSA mode architecture, the core network connected to the base station is a 4G core network, the control plane anchor points are all on 4G, and the data offloading control point of option 3 is on the 4G base station, that is, 4G not only needs to be responsible for control management, but also needs to be responsible for splitting data coming from the core network into two paths, one path is sent to the mobile terminal (e.g., a mobile phone), and the other path is offloaded to 5G to be sent to the mobile terminal.

An important feature of NSA is dual connectivity, i.e. the mobile terminal is able to communicate with both 4G and 5G, typically with one master connection and one slave connection. The NSA mode includes any one of the EN-DC, NE-DC, and NGEN-DC architectures. Wherein EN-DC refers to dual connectivity of a 4G radio access network with a 5G NR, NE-DC refers to dual connectivity of a 5G NR with a 4G radio access network, and NGEN-DC refers to dual connectivity of a 4G radio access network with a 5G NR under a 5G core network. Under an EN-DC framework, electronic equipment is connected with a 4G core network, a 4G base station is a main connection, and a 5G base station is a slave connection. Under the NE-DC framework, a 5G core network is introduced, a 5G base station is a main connection, and a 4G base station is a slave connection. Under the NGEN-DC framework, a 5G core network is introduced, a 4G base station is a main connection, and a 5G base station is a slave connection. Wherein DC represents Dual Connectivity, i.e., Dual Connectivity (DC); e represents Evolved-UMTS Terrestrial Radio Access (E-UTRA or EUTRA), namely a 4G Radio Access network; n represents a New Radio (NR), i.e., a 5G new radio; NG stands for next generation core Network (NG), i.e. 5G core network.

In a new generation of rf solutions, a rf processing circuit, PA-MiD (Power Amplifier Modules with Integrated duplexers), can support the transmission of two different frequency band signals, for example, a PA-MiD can implement the endec function. The PA-MiD contains a first power amplifier module (PA1), such as MB PA (Mid Band PA), and a second power amplifier module (PA2), such as HB PA (High Band PA), which can operate both PA simultaneously. Taking the combination of signals as B3 and N41 (where B3 is a middle-band signal and N41 is a high-band signal) as an example, two paths of signals are respectively amplified by PA1 and PA2, then filtered by the filtering unit, sent to different PINs (PINs) by the rf circuit switch chip for output, and finally transmitted by the antenna, as shown in fig. 1.

For the non-independent networking mode, the Feedback Receiver (FBRX) detection mechanism reads a signal transmitted by an antenna end through a path, and performs a process of detecting a transmission signal and controlling power by analyzing the signal. Specifically, a radio frequency transceiver (trans, having one FBRX input port) generates and transmits a signal, which is processed by a radio frequency processing circuit and then transmitted by an antenna. Then, a Coupler (Coupler, CPL) samples a Transmit (TX) signal to obtain an FBRX signal. The power control (including signal size and quality) is accomplished by detecting the size and quality of the FBRX signal and feeding it back to the rf transceiver through its FBRX interface. In a dual-transmission scenario, that is, a scenario in which two different frequency band signals are transmitted simultaneously, during FBRX detection, each path of signal has an independent CPL for acquisition and detection, and the acquired signals are combined by a multi-path selector and then input to a radio frequency transceiver, as shown in fig. 2. In an ENDC dual-transmission scene, two paths of radio frequency signals with different frequency bands exist in a radio frequency link at the same time, FBRX detection is performed in the transmission process, a platform detects the two paths of radio frequency signals in turn in different time slots (slots) of different frames, only one signal is detected each time, and the time for each detection can be 20us, for example.

At present, the related art can only detect the quality of the transmitted signal and the received signal, and when the signal quality is not good, the system is automatically switched downwards, for example, from 5G (the 5th Generation, fifth Generation mobile communication technology) to 4G (the 4th Generation, fourth Generation mobile communication technology) or from 4G to 3G or from 3G to 2G. Firstly, the network switching time is long, and the PA works in an abnormal state for a long time to cause the risk of burning the PA to be greatly increased when the PA is switched from 5G to 4G, or from 4G to 3G, or from 4G to 2G, so that the communication of the mobile terminal cannot be carried out once the PA is burnt; secondly, when any one of 2G, 3G, 4G and 5G works in a PA, when the PA is abnormal, the mode of switching the system can not change the abnormal state, and the PA still has the risk of burning; thirdly, when the signal quality is detected to be poor, the current scheme can only switch the system downwards, and can not ensure that the mobile terminal stays in the high network system for a long time, so that the signal quality of the mobile terminal can be reduced, and the user experience is reduced.

To this end, an embodiment of the present disclosure provides a method for controlling a radio frequency processing circuit, where the radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module, as shown in fig. 3, the method includes the following steps:

step 10, performing FBRX detection on the radio frequency signal in the current signal path to obtain an FBRX signal of the current signal path;

when at least two radio frequency signals with different frequency bands exist in a radio frequency link at the same time, FBRX detection is carried out in the transmission process, the FBRX detection is carried out on one radio frequency signal each time to obtain the FBRX signal of the current radio frequency signal, and then the receiving power of the FBRX signal is detected.

Step 20, judging whether a power amplification module in a current signal path works abnormally according to the power of the FBRX signal;

for example, the FBRX signal quality may be determined according to whether a difference between the power of the FBRX signal and a target power is greater than a preset first threshold, or the FBRX signal quality may be determined directly according to whether the power of the FBRX signal is greater than a preset second threshold, where the target power is a power value that the FBRX signal needs to reach to ensure the signal quality. When the aforementioned condition is not satisfied, the FBRX signal quality is considered to be poor, and thus it is inferred that one or more power amplification modules in the signal path may have an abnormal operation.

And step 30, responding to the judgment result of the abnormal work of the power amplification module in the current signal path, and switching the signal path to the signal path where the power amplification module which works normally is located.

Taking the example that the radio frequency processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplification module, the second signal path includes a second power amplification module, and the current operation mode of the radio frequency processing circuit may include: an SA mode in which only the first signal path operates, an SA mode in which only the second signal path operates, an NSA mode in which both the first signal path and the second signal path operate, or an SA UL MIMO mode in which both the first signal path and the second signal path operate. Assuming that when the first power amplification module in the first signal path is determined to have abnormal operation according to the above steps, the signal path is adjusted to the second signal path where the second power amplification module which normally operates is located, if the current operating mode of the rf processing circuit is the NSA mode, the signal path is changed to the SA module, and if the current operating mode of the rf processing circuit is the SA mode, the operating mode is not changed, but only the signal path is changed.

The signal path adjustment in this step may be performed after all FBRX in the signal path are detected and the power amplification module is judged to be abnormal, or may be performed after only the power amplification module in the current signal path is judged to be abnormal (the probability of failure of both power amplification modules is low).

In an exemplary embodiment, after step 30, the method may further include the steps of:

the method comprises the steps of carrying out FBRX detection on a radio frequency signal in an original signal access to obtain an FBRX signal of the original signal access, judging whether a power amplification module in the original signal access works abnormally or not according to the power of the FBRX signal of the original signal access, and switching a signal access to the original signal access in response to a judgment result that the power amplification module in the original signal access works normally. By detecting the power amplification module of the original signal path, the power amplification module can be switched back to the original working mode as soon as possible after being recovered to be normal, the high network system is guaranteed to be resident in the network, and user experience is improved.

In an exemplary embodiment, in the step 20, the determining whether the power amplification module in the current signal path operates abnormally according to the power of the FBRX signal may be implemented by the following steps as shown in fig. 4:

step 11, detecting the power of the FBRX signal in real time;

step 12, judging whether the difference value between the power of the FBRX signal and the preset target power is greater than a preset first threshold, if so, executing step 13, otherwise, executing step 14;

the target power refers to a power value that the FBRX signal needs to reach to ensure signal quality, and may be, for example, a transmission power that the base station requires the terminal to reach.

The first threshold may be, for example, 3dB, indicating that the FBRX signal power differs by a factor of two from a preset target power. In other examples, the first threshold may be other values greater than 3 dB.

Step 13, determining that the judgment result is that the power amplification module in the current signal path works abnormally;

at this time, the processor (CPU) may be notified of the work abnormality determination result, and the processor may perform subsequent processing.

And step 14, determining that the power amplification module in the current signal path works normally according to the judgment result.

After step 14, the procedure may return to step 10 to continue the FBRX detection.

In an exemplary embodiment, the radio frequency processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplification module, the second signal path includes a second power amplification module, the currently operating signal path is the first signal path, and the radio frequency processing circuit currently operates in an SA mode supported by the first signal path;

the switching the signal path to the signal path where the power amplification module which normally operates is located in response to the judgment result that the power amplification module in the current signal path abnormally operates includes: and responding to a judgment result of the abnormal operation of the first power amplification module in the first signal path, switching the signal path to a second signal path where the second power amplification module is located, wherein the radio frequency processing circuit currently operates in an SA mode supported by the second signal path.

Similarly, if the second power amplification module in the second signal path works abnormally, the signal path is switched to the first signal path where the first power amplification module is located, and the radio frequency processing circuit currently works in the SA mode supported by the second signal path.

In an exemplary embodiment, the radio frequency processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplification module, the second signal path includes a second power amplification module, the currently operating signal paths are the first signal path and the second signal path, the radio frequency processing circuit currently operates in an NSA mode supported by the first signal path and the second signal path;

the switching the signal path to the signal path where the power amplification module which normally operates is located in response to the judgment result that the power amplification module in the current signal path abnormally operates includes:

and responding to the judgment result of the abnormal operation of the first power amplification module in the first signal path, adjusting the signal path to be a second signal path where the second power amplification module is located, wherein the radio frequency processing circuit currently operates in an SA mode supported by the second signal path.

Similarly, if the second power amplification module in the second signal path works abnormally, the signal path is switched to the first signal path where the first power amplification module is located, and the radio frequency processing circuit currently works in the SA mode supported by the first signal path.

In an exemplary embodiment, the radio frequency processing circuit includes a first signal path, a second signal path and a third signal path, the first signal path includes a first power amplification module, the second signal path includes a second power amplification module, the currently operating signal paths are the first signal path and the second signal path, and the radio frequency processing circuit currently operates in an SA uplink MIMO mode supported by the first signal path and the second signal path;

The foregoing embodiments of the present disclosure are explained below by taking a scenario of switching from the NSA mode to the SA mode as an example, and fig. 5 is a flowchart of switching from the NSA mode to the SA mode. The radio frequency processing circuit in this example comprises a first signal path including a first power amplification block (PA1) and a second signal path including a second power amplification block (PA 2). The current operation mode is an NSA operation mode, that is, the first signal path and the second signal path operate simultaneously to form an endec, where the PA1 may be used to process a radio frequency signal of LTE, and the PA2 may be used to process a radio frequency signal of NR.

Step 51, the current radio frequency processing circuit is in the NSA working mode, and FBRX detection is carried out;

step 52, judging whether the PA2 works abnormally, if so, executing step 53, and if not, returning to step 51;

the method for determining whether PA2 is working abnormally is described in the foregoing embodiments, and is not described herein again.

Step 53, adjusting the current rf processing circuit to be in the SA operation mode, that is, the mode in which only the first signal path where the PA1 is located operates;

step 54, judging whether the PA2 works abnormally, if so, keeping the current SA working mode; if not, go to step 55;

the step 54 of adding for secondary judgment is based on the consideration of ensuring the signal quality of the terminal, and once the PA2 is found to work normally, the original working mode is recovered, so that the high network standard is ensured to stay in the network, the signal quality of the terminal is ensured, and the user experience is improved.

And step 55, adjusting the current radio frequency processing circuit to be in the NSA working mode, performing FBRX detection, and returning to step 52.

In this embodiment, the current operation in the NSA operation mode and the PA2 operation abnormality are taken as an example for explanation, and when the PA1 operation abnormality is processed by referring to the above-mentioned flow, the disclosure is not repeated herein.

In an exemplary embodiment, in order to ensure that the high network system is in a network residence state, a signal of the high network system may be detected first, or a judgment of an abnormal operation may be performed only for a PA in a signal path of the high network system. 5G is a higher network standard than 4G, 4G is a higher network standard than 3G, and 4G is a higher network standard than 2G.

The foregoing embodiments of the present disclosure will be described below by taking a scenario of SA mode 1 switching to SA mode 2 as an example, and fig. 6 is a flowchart of SA mode 1 switching to SA mode 2. The radio frequency processing circuit in this example comprises a first signal path including a first power amplification block (PA1) and a second signal path including a second power amplification block (PA 2). SA mode 1 is a mode in which only the first signal path operates, and SA mode 2 is a mode in which only the second signal path operates. The current operating mode is SA mode 2, i.e. only the second signal path is active.

Step 61, the current radio frequency processing circuit is in an SA working mode 2 in which only the second signal path works, and FBRX detection is carried out;

step 62, judging whether the PA2 works abnormally, if so, executing step 63, and if not, returning to step 61, namely keeping the current SA working mode 2;

Step 63, adjusting the current rf processing circuit to be in SA working mode 1, i.e. the mode in which only the first signal path where PA1 is located works;

step 64, judging whether the PA2 works abnormally, if so, keeping the current SA working mode 1; if not, go to step 65;

the step 64 of adding for secondary judgment is based on the consideration of ensuring the signal quality of the terminal, and once the PA2 is found to work normally, the original working mode is recovered, so that the high network standard is ensured to stay in the network, the signal quality of the terminal is ensured, and the user experience is improved.

And step 65, adjusting the current radio frequency processing circuit to be in the SA working mode 2, performing FBRX detection, and returning to step 62.

In this embodiment, the current operation in the SA operation mode 2 and the PA2 operation abnormality are taken as an example for explanation, and the processing of the PA1 operation abnormality in the SA operation mode 1 is implemented by referring to the above-mentioned flow, which is not described herein again.

The foregoing embodiments of the present disclosure will be described below with reference to a scenario in which an UL MIMO (uplink multiple input multiple output) mode is switched to an SA mode as an example, and fig. 7 is a flowchart illustrating switching of the SA UL MIMO mode to the SA mode. In this example, the radio frequency processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplification module (PA1), the second signal path includes a second power amplification module (PA2), the current operating signal path is the first signal path and the second signal path, and the two transmission paths operate simultaneously to implement UL MIMO.

Step 71, the current radio frequency processing circuit is in an SA UL MIMO working mode in which both the first signal path and the second signal path work, and FBRX detection is performed;

step 72, judging whether the PA2 works abnormally, if so, executing step 73, and if not, returning to step 71, namely, keeping the current working mode;

Step 73, adjusting the current rf processing circuit to be in an SA operating mode, that is, a mode in which only the first signal path where PA1 is located operates;

step 74, judging whether the PA2 works abnormally, if so, keeping the current SA working mode; if not, go to step 75;

the addition step 74 makes a second determination based on the consideration of ensuring the signal quality of the terminal, and once the PA2 is found to work normally, the original working mode is immediately recovered.

And step 75, adjusting the current radio frequency processing circuit to be in the SA UL MIMO operating mode, performing FBRX detection, and returning to step 72.

In this embodiment, the current operation in the SA UL MIMO mode and the PA2 operation abnormality are taken as an example for explanation, and when the PA1 operation abnormality is processed by referring to the above-mentioned process, the disclosure is not repeated herein.

According to the scheme of the embodiment of the disclosure, the advantage of hardware design of multiple transmission (for example, 2TX) is fully utilized, whether the current working PA1 is abnormal is judged through the FBRX detection result, once the current PA1 is detected to be abnormal in working, the working of the current PA1 is immediately stopped, and the other PA is switched to work, when the other PA works normally, the working state of the PA1 is circularly detected, and when the PA1 is detected to be normal, the PA1 is switched back to work again. Therefore, the two PAs can be protected from working normally, the mobile terminal can be guaranteed to work in the highest network standard to the maximum extent, and user experience is not influenced.

In other embodiments, the radio frequency processing circuit may include a plurality of signal paths, that is, the radio frequency processing circuit includes a plurality of power amplifiers, and when a power amplification module in a certain signal path works abnormally, the method of the present embodiment may still be used to switch the signal paths, so as to ensure that the mobile terminal always works in the normal signal path of the power amplification module.

The embodiment of the present disclosure further provides a radio frequency system, which includes a radio frequency transceiver, a radio frequency processing circuit and an antenna system, wherein a signal transmitted by the radio frequency transceiver is processed by the radio frequency processing circuit and then transmitted by the antenna system, the radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module;

Alternatively, as shown in fig. 8, the processor may be connected to a radio frequency transceiver, and the FBRX signal is received by the radio frequency transceiver to determine the abnormal operation, and the radio frequency processing circuit is controlled by the radio frequency transceiver.

In an exemplary embodiment, the processor determining whether the power amplification module in the current signal path is abnormally operated according to the power of the FBRX signal includes:

the processor judges whether the difference value between the power of the FBRX signal and the preset target power is larger than a preset first threshold value, if so, the judgment result is that the power amplification module in the current signal path works abnormally, and if not, the judgment result is that the power amplification module in the current signal path works normally.

In an exemplary embodiment, after the processor adjusts the operation mode of the rf processing circuit to the operation mode supported by the normally operating power amplification module, the processor is further configured to:

performing FBRX detection on a radio frequency signal in an original signal path to obtain an FBRX signal of the original signal path, judging whether a power amplification module in the original signal path works abnormally or not according to the power of the FBRX signal of the original signal path, and switching the signal path to the original signal path in response to a judgment result that the power amplification module in the original signal path works normally.

The embodiment of the disclosure also provides a wireless communication device comprising the radio frequency system. The wireless communication device according to the embodiments of the present disclosure may include various handheld devices, vehicle-mounted devices, virtual reality/augmented reality devices, wireless headsets, smart home devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE) (e.g., Mobile phone), Mobile Station (MS), terminal device (terminal device), and the like.

The smart home equipment can be at least one of the following: the intelligent electric cooker comprises an intelligent watch, an intelligent sound box, an intelligent television, an intelligent refrigerator, an intelligent washing machine, an intelligent lamp, an intelligent closestool, an intelligent electric cooker, an intelligent clothes hanger, an intelligent massage chair, intelligent furniture, an intelligent sensor, an intelligent door and window, an intelligent router, an intelligent gateway, an intelligent switch panel and the like, and is not limited herein.

In the description of the embodiments of the present disclosure, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Claims

1. A method for controlling a radio frequency processing circuit, wherein the radio frequency processing circuit includes at least two signal paths, each signal path including a power amplifier module, the method comprising:

2. The method for controlling a radio frequency processing circuit according to claim 1, wherein after switching the current signal path to the signal path of the power amplification module that operates normally, the method further comprises:

the method comprises the steps of carrying out FBRX detection on a radio frequency signal in an original signal access to obtain an FBRX signal of the original signal access, judging whether a power amplification module in the original signal access works abnormally or not according to the power of the FBRX signal of the original signal access, and switching a signal access to the original signal access in response to a judgment result that the power amplification module in the original signal access works normally.

3. The method as claimed in claim 1 or 2, wherein the determining whether the power amplification module in the current signal path is abnormal according to the power of the FBRX signal comprises:

and judging whether the difference value between the power of the FBRX signal and the preset target power is greater than a preset first threshold value, if so, determining that the judgment result is that the power amplification module in the current signal path works abnormally, and if not, determining that the judgment result is that the power amplification module in the current signal path works normally.

4. The method according to claim 1, wherein the rf processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplifying module, the second signal path includes a second power amplifying module, the currently operating signal path is the first signal path, and the rf processing circuit currently operates in an independent networking SA mode supported by the first signal path;

and responding to a judgment result of the abnormal work of the first power amplification module in the first signal path, switching the signal path to a second signal path where the second power amplification module is located, wherein the radio frequency processing circuit works in an independent networking SA mode supported by the second signal path currently.

5. The method according to claim 1, wherein the rf processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplifying module, the second signal path includes a second power amplifying module, the currently operating signal paths are the first signal path and the second signal path, and the rf processing circuit currently operates in a non-independent Networking (NSA) mode supported by the first signal path and the second signal path;

and responding to the judgment result of the abnormal work of the first power amplification module in the first signal path, adjusting the signal path to be a second signal path where a second power amplification module is located, wherein the radio frequency processing circuit works in an independent networking SA mode supported by the second signal path at present.

6. The method according to claim 1, wherein the rf processing circuit includes a first signal path and a second signal path, the first signal path includes a first power amplification module, the second signal path includes a second power amplification module, the currently operating signal paths are the first signal path and the second signal path, and the rf processing circuit currently operates in an independent networking SA uplink multiple input multiple output MIMO mode supported by the first signal path and the second signal path;

7. A radio frequency system is characterized by comprising a radio frequency transceiver, a radio frequency processing circuit and an antenna system, wherein signals transmitted by the radio frequency transceiver are processed by the radio frequency processing circuit and then transmitted by the antenna system, the radio frequency processing circuit comprises at least two signal paths, and each signal path comprises a power amplification module;

8. The RF system of claim 7, wherein the processor determining whether the power amplification module in the current signal path is malfunctioning according to the power of the FBRX signal comprises:

9. The radio frequency system of claim 7, wherein the processor, after adjusting the operating mode of the radio frequency processing circuitry to the operating mode supported by the power amplification module operating normally, is further configured to:

10. A wireless communication device comprising a radio frequency system according to any of claims 7-9.