A method for controlling a radio frequency processing circuit, a radio frequency system, and a wireless communication device

Abstract

The embodiment of the present application discloses a method for controlling a radio frequency processing circuit, a radio frequency system and a wireless communication device. The radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module. The method for controlling the radio frequency processing circuit includes: performing FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path; judging whether the power amplification module in the current signal path is operating abnormally according to the power of the FBRX signal; in response to the judgment result that the power amplification module in the current signal path is operating abnormally, switching the signal path to the signal path where the normally operating power amplification module is located. This can prevent the power amplification module from working in an abnormal state for a long time, ensure the reliability of the power amplification module, and improve the user experience.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to, but are not limited to, the technical field of control circuits, and particularly to a method for controlling a radio frequency processing circuit, a radio frequency system, and a wireless communication device. Background Art

[0002] With the rapid development of mobile terminals, users and operators have increasingly higher requirements for the quality of transmitted and received signals, especially for the quality of transmitted signals. Currently, transmitted signals generally need to support the simultaneous operation of 2TX (transmission) such as UL MIMO (uplink multiple-input multiple-output) or DSDA (dual SIM dual active), which further requires two power amplifiers (PAs) to work simultaneously. However, there are reliability problems with PAs. If a PA is in an abnormal working state for a long time, it may cause the PA to burn out, resulting in the inability of the user equipment to communicate. Summary of the Invention

[0003] The embodiments of the present disclosure provide a method for controlling a radio frequency processing circuit, a radio frequency system, and a wireless communication device, which can prevent the power amplification module from working in an abnormal state for a long time and ensure the reliability of the power amplification module.

[0004] On the one hand, the embodiments of the present disclosure provide a method for controlling a radio frequency processing circuit. The radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module. The control method includes:

[0005] Performing FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path;

[0006] Judging whether the power amplification module in the current signal path is working abnormally according to the power of the FBRX signal;

[0007] In response to the judgment result that the power amplification module in the current signal path is working abnormally, switching the signal path to the signal path where the normally working power amplification module is located.

[0008] On the other hand, the embodiments of the present disclosure also provide a radio frequency system, including a radio frequency transceiver, a radio frequency processing circuit, and an antenna system. The signal transmitted by the radio frequency transceiver is processed by the radio frequency processing circuit and then transmitted by the antenna system. Among them, the radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module;

[0009] The radio frequency processing circuit further includes a processor configured to perform FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path, determine whether the power amplifier module in the current signal path is operating abnormally according to the power of the FBRX signal, and in response to the determination result that the power amplifier module in the current signal path is operating abnormally, switch the signal path to the signal path where the normally operating power amplifier module is located.

[0010] In another aspect, an embodiment of the present disclosure further provides a wireless communication device including the foregoing radio frequency system.

[0011] In the embodiment of the present disclosure, it is determined whether a power amplifier module is in an abnormal state based on the FBRX detection result. When it is detected that a power amplifier module is operating abnormally, the signal path is automatically switched to the normally operating power amplifier module, ensuring the normal and reliable operation of the terminal where the radio frequency processing circuit is located, preventing the power amplifier module from working in an abnormal state for a long time, ensuring the reliability of the power amplifier module, and improving the user experience.

[0012] Other features and advantages of the present disclosure will be described in the following description, and some of them will be obvious from the description, or understood by implementing the present disclosure. Other advantages of the present disclosure can be achieved and obtained through the solutions described in the description, claims, and drawings. Description of the Drawings

[0013] The drawings are used to provide an understanding of the technical solutions of the present disclosure, and constitute a part of the description. They are used together with the embodiments of the present disclosure to explain the technical solutions of the present disclosure, and do not constitute a limitation to the technical solutions of the present disclosure. The shapes and sizes of the components in the drawings do not reflect the actual proportions, and the purpose is only to illustrate the content of the present disclosure schematically.

[0014] Figure 1 It is a schematic diagram of the structure of a radio frequency processing circuit;

[0015] Figure 2 It is a schematic diagram of the structure of a radio frequency system;

[0016] Figure 3 It is a flowchart of the control method for the radio frequency processing circuit in the embodiment of the present disclosure;

[0017] Figure 4 It is a flowchart for determining whether the power amplifier module is operating abnormally in the embodiment of the present disclosure;

[0018] Figure 5 It is a flowchart for switching from the NSA mode to the SA mode in the embodiment of the present disclosure;

[0019] Figure 6 It is a flowchart for switching from SA mode 1 to SA mode 2 in the embodiment of the present disclosure;

[0020] Figure 7 This is a flowchart for the UL MIMO mode of the present disclosure to switch to the SA mode;

[0021] Figure 8 This is a schematic diagram of the radio frequency system structure of an embodiment of the present disclosure. Detailed implementation manners

[0022] The present disclosure describes multiple embodiments, but the description is exemplary rather than restrictive, and it will be apparent to those of ordinary skill in the art that there can be more embodiments and implementation solutions within the scope of the embodiments described in the present disclosure. Although many possible feature combinations are shown in the drawings and discussed in the detailed implementation manners, many other combination manners of the disclosed features are also possible. Unless specifically restricted, any feature or element of any embodiment can be combined with any other feature or element in any other embodiment, or can replace any other feature or element in any other embodiment.

[0023] The present disclosure includes and contemplates combinations with features and elements known to those of ordinary skill in the art. The embodiments, features, and elements already disclosed in the present disclosure can also be combined with any conventional features or elements to form unique inventive solutions defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in the present disclosure can be implemented alone or in any suitable combination. Therefore, the embodiments are not subject to other restrictions except those made according to the appended claims and their equivalent replacements. In addition, various modifications and changes can be made within the scope of protection of the appended claims.

[0024] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not depend on the specific order of the steps described herein, the method or process should not be limited to the specific order of the steps described. As will be understood by those of ordinary skill in the art, other step sequences are possible. Therefore, the specific order of the steps set forth in the specification should not be construed as a limitation on the claims. In addition, the claims directed to the method and / or process should not be limited to performing their steps in the order written, and those skilled in the art can easily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of the present disclosure.

[0025] The options of the 5G mobile communication system network architecture are divided into the SA (Standalone) mode and the NSA (Non-Standalone) mode. Among them, options 1, 2, 5, and 6 are in the SA mode, and options 3, 4, 7, and 8 are in the NSA mode; options 3, 4, and 7 in the non-standalone networking have different sub-options.

[0026] Taking option 2 as an example, the core architecture of the SA mode is that both the control plane and the user plane of the core network are connected to the mobile phone through 5G base stations. The user plane and the control plane can be completely separated. Among them, the control plane is the channel for sending the signaling required for management and resource scheduling; the user plane is the channel for sending the specific data of the user.

[0027] Taking option 3 as an example, in the NSA mode architecture, the core network connected by the base station is the 4G core network, the control plane anchor points are all in 4G, and the data splitting control point of option 3 is on the 4G base station. That is to say, 4G not only has to be responsible for control and management, but also has to split the data coming from the core network into two paths, one path is sent to the mobile terminal (such as a mobile phone), and the other path is split to 5G to be sent to the mobile terminal.

[0028] A major feature of NSA is dual connectivity, that is, the mobile terminal can communicate with both 4G and 5G at the same time. Generally, there will be a primary connection and a secondary connection. The NSA mode includes any one of the EN-DC, NE-DC, and NGEN-DC architectures. Among them, EN-DC refers to the dual connectivity between the 4G radio access network and 5G NR, NE-DC refers to the dual connectivity between 5G NR and the 4G radio access network, and NGEN-DC refers to the dual connectivity between the 4G radio access network and 5G NR under the 5G core network. Under the EN-DC architecture, the electronic device is connected to the 4G core network, the 4G base station is the primary connection, and the 5G base station is the secondary connection. Under the NE-DC architecture, the 5G core network is introduced, the 5G base station is the primary connection, and the 4G base station is the secondary connection. Under the NGEN-DC architecture, the 5G core network is introduced, the 4G base station is the primary connection, and the 5G base station is the secondary connection. Among them, DC represents Dual Connectivity, that is, Dual Connectivity (DC); E represents the evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (Evolved-UMTS Terrestrial Radio Access, E-UTRA or EUTRA), that is, the 4G radio access network; N represents the new radio (NR), that is, the 5G new radio; NG represents the next generation core network (next generation, NG), that is, the 5G core network.

[0029] In the new generation of RF solutions, a RF processing circuit - PA-MiD (Power Amplifier Modules with Integrated Duplexer) can support the transmission of two signals with different frequency bands. For example, a PA-MiD can implement the ENDC function. Inside the PA-MiD, there is a first power amplifier module (PA1), such as an MB PA (Mid Band PA), and a second power amplifier module (PA2), such as an HB PA (High Band PA). The two PAs can work simultaneously. Taking the signal combination of B3 and N41 (where B3 is a mid-band signal and N41 is a high-band signal) as an example, after the two signals are amplified by PA1 and PA2 respectively, they are filtered by a filtering unit, sent to different pins (PINs) through a RF circuit switch chip, and finally transmitted through an antenna, as Figure 1 shown.

[0030] For the non-standalone networking mode, the feedback receiver (FBRX) detection mechanism reads the signal transmitted from the antenna end through a path and completes the detection and power control of the transmitted signal by analyzing the signal. Specifically, a transceiver (with an FBRX input port) generates and transmits a signal, which is transmitted through the antenna after being processed by the RF processing circuit. Then, a coupler (CPL) samples a transmitted (TX) signal to obtain the FBRX signal. By detecting the magnitude and quality of the FBRX signal and feeding it back to the transceiver through the FBRX interface of the transceiver, power control (including signal magnitude and quality) is completed. In the dual-transmission scenario, that is, when two signals with different frequency bands are transmitted simultaneously, during FBRX detection, each signal has an independent CPL for acquisition and detection. After the acquired signals are combined through a multiplexing device, they are input into the transceiver, as Figure 2 shown. In the ENDC dual-transmission scenario, there are two RF signals with different frequency bands in the RF link simultaneously. During the transmission process, FBRX detection is performed. The platform will alternately detect the two RF signals at different time slots of different frames, and only one signal is detected each time. The detection time each time can be, for example, 20 us.

[0031] Currently, related technologies can only detect the quality of transmitted and received signals. When the signal quality is poor, the system automatically switches to a lower network mode. For example, it switches from 5G (the 5th Generation) to 4G (the 4th Generation), or from 4G to 3G, or from 3G to 2G, etc. However, this solution has significant drawbacks. First, the network switching time is relatively long. When switching from 5G to 4G, or from 4G to 3G, or from 4G to 2G, the power amplifier (PA) will work in an abnormal state for a long time, greatly increasing the risk of PA burnout. Once the PA burns out, the mobile terminal will be unable to communicate. Second, when any one of 2G, 3G, 4G, or 5G works on a single PA, if the PA malfunctions, the switching method cannot change the abnormal state, and the PA still has a risk of burnout. Third, in the current solution, when the signal quality is detected to be poor, it can only switch to a lower network mode, and it cannot ensure staying in a high network mode for a long time, which will reduce the signal quality of the mobile terminal and the user experience.

[0032] Therefore, an embodiment of the present disclosure provides a method for controlling a radio frequency processing circuit. The radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module, as Figure 3 described. The control method includes the following steps:

[0033] Step 10: Perform FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path;

[0034] When there are at least two radio frequency signals with different frequency bands in the radio frequency link, FBRX detection will be performed during transmission. Each time, FBRX detection is performed on one radio frequency signal to obtain the FBRX signal of the current radio frequency signal, and then the received power of the FBRX signal is detected.

[0035] Step 20: Determine whether the power amplification module in the current signal path is operating abnormally according to the power of the FBRX signal;

[0036] For example, it can be determined whether the FBRX signal quality is good by whether the difference between the power of the FBRX signal and the target power is greater than a preset first threshold, or it can directly be determined whether the FBRX signal quality is good according to whether the power of the FBRX signal is greater than a preset second threshold. The target power refers to the power value that the FBRX signal needs to reach to ensure signal quality. When the foregoing conditions are not met, it is considered that the FBRX signal quality is poor, and it is inferred that one or more power amplification modules in the signal path may be operating abnormally.

[0037] Step 30: In response to the judgment result that the power amplifier module in the current signal path is operating abnormally, switch the signal path to the signal path where the power amplifier module with normal operation is located.

[0038] Taking the radio frequency processing circuit including a first signal path and a second signal path as an example, the first signal path includes a first power amplifier module, the second signal path includes a second power amplifier module, and the working modes of the current radio frequency processing circuit may include: the SA mode with only the first signal path working, the SA mode with only the second signal path working, the NSA mode with both the first signal path and the second signal path working, or the SA UL MIMO mode with both the first signal path and the second signal path working. Assume that when it is determined according to the foregoing steps that the first power amplifier module in the first signal path has an abnormal operation, the signal path is adjusted to the second signal path where the second power amplifier module with normal operation is located. If the working mode of the current radio frequency processing circuit is the NSA mode, it is adjusted to the SA module due to the change of the signal path. If the working mode of the current radio frequency processing circuit is the SA mode, the working mode remains unchanged, only the signal path changes.

[0039] The adjustment of the signal path in this step can be performed after all FBRXs in the signal path have been detected and the judgment of the abnormal operation of the power amplifier module has been made, or can be performed after only judging the abnormal operation of the power amplifier module in the current signal path (the probability that both power amplifier modules in the two paths fail is relatively low).

[0040] The embodiment of the present disclosure determines whether a power amplifier module is in an abnormal state according to the FBRX detection result. When it is detected that a power amplifier module has an abnormal operation, the signal path is automatically switched to the power amplifier module with normal operation, ensuring the normal and reliable operation of the terminal where the radio frequency processing circuit is located, preventing the power amplifier module from working in an abnormal state for a long time, ensuring the reliability of the power amplifier module, and improving the user experience.

[0041] In an exemplary embodiment, after step 30, the method may further include the following steps:

[0042] Perform FBRX detection on the radio frequency signal in the original signal path to obtain the FBRX signal of the original signal path, and judge whether the power amplifier module in the original signal path is operating abnormally according to the power of the FBRX signal of the original signal path. In response to the judgment result that the power amplifier module in the original signal path is operating normally, switch the signal path to the original signal path. By detecting the power amplifier module in the original signal path, it is ensured that after the power amplifier module returns to normal, it can be switched back to the original working mode as soon as possible, ensuring high network mode residence and improving the user experience.

[0043] In an exemplary embodiment, in step 20 above, it is determined whether the power amplification module in the current signal path is operating abnormally according to the power of the FBRX signal. As Figure 4 shown, the following steps may be adopted to implement:

[0044] Step 11, detect the power of the FBRX signal in real time;

[0045] Step 12, determine whether the difference between the power of the FBRX signal and the preset target power is greater than a preset first threshold. If so, execute step 13; if not, execute step 14;

[0046] The target power refers to the power value that the FBRX signal needs to reach to ensure signal quality. For example, it can be the transmit power required by the base station for the terminal.

[0047] The first threshold can be, for example, 3 dB, indicating that the power of the FBRX signal is twice the preset target power. In other examples, the first threshold can be other values greater than 3 dB.

[0048] Step 13, determine that the judgment result is that the power amplification module in the current signal path is operating abnormally;

[0049] At this time, the abnormal operation judgment result can be notified to the processor (CPU), and the processor will perform subsequent processing.

[0050] Step 14, determine that the judgment result is that the power amplification module in the current signal path is operating normally.

[0051] After step 14, step 10 can be returned to continue the FBRX detection.

[0052] 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, and 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 is currently operating in the SA mode supported by the first signal path;

[0053] Responding to the judgment result that the power amplification module in the current signal path is operating abnormally, switching the signal path to the signal path where the normally operating power amplification module is located includes: responding to the judgment result that the first power amplification module in the first signal path is operating abnormally, switching the signal path to the second signal path where the second power amplification module is located, and the radio frequency processing circuit is currently operating in the SA mode supported by the second signal path.

[0054] Similarly, if the second power amplification module in the second signal path malfunctions, the signal path is switched to the first signal path where the first power amplification module is located, and the radio frequency processing circuit is currently operating in the SA mode supported by the second signal path.

[0055] 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, and 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 is currently operating in the NSA mode supported by the first signal path and the second signal path.

[0056] The step of switching the signal path to the signal path where the normally operating power amplification module is located in response to the determination result that the power amplification module in the current signal path malfunctions includes:

[0057] In response to the determination result that the first power amplification module in the first signal path malfunctions, the signal path is adjusted to the second signal path where the second power amplification module is located, and the radio frequency processing circuit is currently operating in the SA mode supported by the second signal path.

[0058] Similarly, if the second power amplification module in the second signal path malfunctions, the signal path is switched to the first signal path where the first power amplification module is located, and the radio frequency processing circuit is currently operating in the SA mode supported by the first signal path.

[0059] 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, and 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 is currently operating in the SA uplink MIMO mode supported by the first signal path and the second signal path.

[0060] The step of switching the signal path to the signal path where the normally operating power amplification module is located in response to the determination result that the power amplification module in the current signal path malfunctions includes:

[0061] In response to the determination result that the first power amplification module in the first signal path malfunctions, the signal path is adjusted to the second signal path where the second power amplification module is located, and the radio frequency processing circuit is currently operating in the SA mode supported by the second signal path.

[0062] Similarly, if the second power amplification module in the second signal path malfunctions, the signal path is switched to the first signal path where the first power amplification module is located, and the radio frequency processing circuit is currently operating in the SA mode supported by the first signal path.

[0063] Taking the scenario of switching from the NSA mode to the SA mode as an example, the foregoing embodiments of the present disclosure will be described below. Figure 5 FIG. 5 is a flowchart for switching from the NSA 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), and the second signal path includes a second power amplification module (PA2). The current operating mode is the NSA operating mode, that is, the first signal path and the second signal path operate simultaneously to form an ENDC. Among them, PA1 can be used to process radio frequency signals of LTE, and PA2 can be used to process radio frequency signals of NR, for example.

[0064] Step 51, the current radio frequency processing circuit is in the NSA operating mode, and FBRX detection is performed.

[0065] Step 52, determine whether PA2 malfunctions. If so, execute Step 53; if not, return to Step 51.

[0066] The method for determining whether PA2 malfunctions can be seen in the description of the foregoing embodiments and will not be elaborated here.

[0067] Step 53, adjust the current radio frequency processing circuit to the SA operating mode, that is, the mode in which only the first signal path where PA1 is located operates.

[0068] Step 54, determine whether PA2 malfunctions. If so, maintain the current SA operating mode; if not, execute Step 55.

[0069] Adding Step 54 for secondary determination is based on the consideration of ensuring the signal quality of the terminal. Once it is found that PA2 resumes normal operation, the original operating mode is restored to ensure high network mode registration, ensure the signal quality of the terminal, and improve the user experience.

[0070] Step 55, adjust the current radio frequency processing circuit to the NSA operating mode, perform FBRX detection, and return to Step 52.

[0071] This example is described by taking the current operation in the NSA operating mode and PA2 malfunctioning as an example. When PA1 malfunctions, the processing is implemented with reference to the above process, and the present disclosure will not elaborate here.

[0072] In an exemplary embodiment, in order to ensure camping on a high network mode, the signal of the high network mode can be detected first, or only the PA in the signal path of the high network mode is judged for abnormal operation. 5G is a higher network mode than 4G, 4G is a higher network mode than 3G, and 4G is a higher network mode than 2G.

[0073] Taking the scenario of switching from SA mode 1 to SA mode 2 as an example, the foregoing embodiments of the present disclosure will be described below. Figure 6 It is a flowchart for switching from SA mode 1 to SA mode 2. 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), and the second signal path includes a second power amplification module (PA2). SA mode 1 is a mode in which only the first signal path works, and SA mode 2 is a mode in which only the second signal path works. The current working mode is SA mode 2, that is, only the second signal path works.

[0074] Step 61, the current radio frequency processing circuit is in SA working mode 2 in which only the second signal path works, and FBRX detection is performed;

[0075] Step 62, judge whether PA2 works abnormally. If so, execute step 63. If not, return to step 61, that is, maintain the current SA working mode 2;

[0076] The method for judging whether PA2 works abnormally can be seen in the description of the foregoing embodiments and will not be elaborated here.

[0077] Step 63, adjust the current radio frequency processing circuit to be in SA working mode 1, that is, the mode in which only the first signal path where PA1 is located works;

[0078] Step 64, judge whether PA2 works abnormally. If so, maintain the current SA working mode 1. If not, execute step 65;

[0079] Adding step 64 for secondary judgment is based on the consideration of ensuring the terminal signal quality. Once it is found that PA2 works normally again, the original working mode is restored to ensure camping on the high network mode, ensure the terminal signal quality, and improve the user experience.

[0080] Step 65, adjust the current radio frequency processing circuit to be in SA working mode 2, perform FBRX detection, and return to step 62.

[0081] This example is described by taking the current working in SA working mode 2 and PA2 working abnormally as an example. The processing when PA1 works abnormally when in SA working mode 1 is implemented with reference to the above process, and the present disclosure will not elaborate here.

[0082] Taking the scenario of switching from the UL MIMO (uplink multiple-input multiple-output) mode to the SA mode as an example, the foregoing embodiments of the present disclosure will be described below. Figure 7 It is a flowchart for switching from 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 amplifier module (PA1), and the second signal path includes a second power amplifier module (PA2). The current working signal paths are the first signal path and the second signal path, and the two transmitting paths work simultaneously to implement UL MIMO.

[0083] Step 71, when the current radio frequency processing circuit is in the SA UL MIMO working mode where both the first signal path and the second signal path are working, perform FBRX detection;

[0084] Step 72, determine whether PA2 is working abnormally. If so, execute Step 73; if not, return to Step 71, that is, maintain the current working mode;

[0085] The method for determining whether PA2 is working abnormally can be found in the description of the foregoing embodiments and will not be elaborated here.

[0086] Step 73, adjust the current radio frequency processing circuit to the SA working mode, that is, the mode where only the first signal path where PA1 is located is working;

[0087] Step 74, determine whether PA2 is working abnormally. If so, maintain the current SA working mode; if not, execute Step 75;

[0088] Adding Step 74 for secondary judgment is based on the consideration of ensuring the terminal signal quality. Once it is found that PA2 resumes normal operation, the original working mode will be restored immediately.

[0089] Step 75, adjust the current radio frequency processing circuit to the SA UL MIMO working mode, perform FBRX detection, and return to Step 72.

[0090] This example is described by taking the current operation in the SA UL MIMO mode and PA2 working abnormally as an example. When PA1 works abnormally, the processing can be implemented with reference to the above process, and the present disclosure will not elaborate here.

[0091] The solution of the embodiment of the present disclosure makes full use of the hardware design advantages of multi-transmission (e.g., 2TX), determines whether the current working PA1 is abnormal through the FBRX detection result. Once it is detected that PA1 is working abnormally, the work of the current PA1 is immediately stopped, and the work is switched to another PA. When the other PA is working normally, the working state of PA1 is cyclically detected. When it is detected that PA1 returns to normal, the work is switched back to PA1. In this way, it can not only protect the two PAs to work normally, but also ensure that the mobile terminal works at the highest network mode to the greatest extent without affecting the user experience.

[0092] The above embodiment is only described by taking two signal paths, each signal path having a power amplification module as an example. In other embodiments, the radio frequency processing circuit may include multiple signal paths, that is, the radio frequency processing circuit includes multiple power amplifiers. When the power amplification module in a certain signal path works abnormally, the above method of the present embodiment can still be used to switch the signal path to ensure that the mobile terminal always works in the signal path where the power amplification module is normal.

[0093] The embodiment of the present disclosure also provides a radio frequency system, including a radio frequency transceiver, a radio frequency processing circuit, and an antenna system. The signal transmitted by the radio frequency transceiver is processed by the radio frequency processing circuit and then transmitted by the antenna system. Among them, the radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplification module;

[0094] The radio frequency processing circuit further includes a processor, and the processor is configured to perform FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path, and determine whether the power amplification module in the current signal path works abnormally according to the power of the FBRX signal. In response to the judgment result that the power amplification module in the current signal path works abnormally, the signal path is switched to the signal path where the power amplification module with normal work is located.

[0095] Optionally, as Figure 8 shown, the processor may be connected to the radio frequency transceiver, receive the FBRX signal through the radio frequency transceiver to perform the abnormal work judgment, and control the radio frequency processing circuit through the radio frequency transceiver.

[0096] In an exemplary embodiment, the processor determines whether the power amplification module in the current signal path works abnormally according to the power of the FBRX signal, including:

[0097] The processor determines whether the difference between the power of the FBRX signal and a preset target power is greater than a preset first threshold. If it is greater, it is determined that the power amplifier module in the current signal path is operating abnormally. If it is not greater, it is determined that the power amplifier module in the current signal path is operating normally.

[0098] In an exemplary embodiment, after the processor adjusts the operating mode of the radio frequency processing circuit to an operating mode supported by a normally operating power amplifier module, the processor is further configured to:

[0099] Perform FBRX detection on the radio frequency signal in the original signal path to obtain the FBRX signal of the original signal path, determine whether the power amplifier module in the original signal path is operating abnormally according to the power of the FBRX signal of the original signal path, and in response to the determination result that the power amplifier module in the original signal path is operating normally, switch the signal path to the original signal path.

[0100] Embodiments of the present disclosure also provide a wireless communication device including the above radio frequency system. The wireless communication devices involved in 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, as well as various forms of user equipment (UE) (e.g., mobile phones), mobile stations (MS), terminal devices, and so on.

[0101] Among them, the smart home device may be at least one of the following: smart watch, smart speaker, smart TV, smart refrigerator, smart washing machine, smart lamp, smart toilet, smart rice cooker, smart drying rack, smart massage chair, smart furniture, smart sensor, smart door and window, smart router, smart gateway, smart switch panel, etc., which are not limited herein.

[0102] In the description of the embodiments of the present disclosure, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0103] Those of ordinary skill in the art will understand that all or some of the steps in the methods disclosed above, and the functional modules / units in systems and devices, can be implemented as software, firmware, hardware, and appropriate combinations thereof. In the hardware implementation, the division of functional modules / units mentioned above 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 executed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

Claims

1. A method for controlling a radio frequency processing circuit, characterized in that, The radio frequency processing circuit is a power amplifier module with an integrated duplexer. The radio frequency processing circuit includes at least two signal paths. Each signal path includes a power amplification module, a filtering unit, and an antenna switch. 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, and the second signal path includes a second power amplification module. The currently working signal paths are the first signal path and the second signal path. The radio frequency processing circuit currently operates in the stand-alone networking SA uplink multiple-input multiple-output MIMO mode supported by the first signal path and the second signal path. The control method includes: Perform FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path; Judge whether the power amplification module in the current signal path is operating abnormally according to the power of the FBRX signal. Specifically, judge whether the difference between the power of the FBRX signal and the preset target power is greater than a preset first threshold. If it is greater, determine that the judgment result is that the power amplification module in the current signal path is operating abnormally. If it is not greater, determine that the judgment result is that the power amplification module in the current signal path is operating normally; In response to the judgment result that the first power amplification module in the current signal path is operating abnormally, switch the signal path to the second signal path where the second power amplification module with normal operation is located, so that the radio frequency processing circuit switches from the stand-alone networking SA uplink multiple-input multiple-output MIMO mode supported by the first signal path and the second signal path to the SA mode supported by the second signal path; The method further includes: Perform FBRX detection on the radio frequency signal in the first signal path to obtain the FBRX signal of the first signal path. Judge whether the first power amplification module in the first signal path is operating abnormally according to the power of the FBRX signal of the first signal path. In response to the judgment result that the first power amplification module in the first signal path is operating normally, switch the signal path to the first signal path and the second signal path, so that the radio frequency processing circuit switches from the SA mode supported by the second signal path to the stand-alone networking SA uplink multiple-input multiple-output MIMO mode supported by the first signal path and the second signal path.

2. The radio frequency processing circuit control method according to claim 1, wherein 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, and the second signal path includes a second power amplification module. The currently working signal paths are the first signal path and the second signal path. The radio frequency processing circuit currently operates in the non-stand-alone networking NSA mode supported by the first signal path and the second signal path; The step of, in response to the judgment result that the first power amplification module in the current signal path is operating abnormally, switching the signal path to the second signal path where the second power amplification module with normal operation is located, includes: In response to the judgment result that the first power amplification module in the first signal path is operating abnormally, adjust the signal path to the second signal path where the second power amplification module is located. The radio frequency processing circuit currently operates in the stand-alone networking SA mode supported by the second signal path.

3. A radio frequency system, characterized in that, It includes a radio frequency transceiver, a radio frequency processing circuit, and an antenna system. The signal transmitted by the radio frequency transceiver is processed by the radio frequency processing circuit and then transmitted by the antenna system. Among them, the radio frequency processing circuit is a power amplifier module with an integrated duplexer. The radio frequency processing circuit includes at least two signal paths, and each signal path includes a power amplifier module, a filtering unit, and an antenna switch. The radio frequency processing circuit includes a first signal path and a second signal path. The first signal path includes a first power amplifier module, and the second signal path includes a second power amplifier module. The currently working signal paths are the first signal path and the second signal path. The radio frequency processing circuit currently operates in the Standalone (SA) uplink multiple-input multiple-output (MIMO) mode supported by the first signal path and the second signal path; The radio frequency processing circuit further includes a processor, which is configured to perform FBRX detection on the radio frequency signal in the current signal path to obtain the FBRX signal of the current signal path, and judge whether the power amplifier module in the current signal path is operating abnormally according to the power of the FBRX signal. In response to the judgment result that the first power amplifier module in the current signal path is operating abnormally, switch the signal path to the second signal path where the second power amplifier module with normal operation is located, so that the radio frequency processing circuit switches from the Standalone (SA) uplink multiple-input multiple-output (MIMO) mode supported by the first signal path and the second signal path to the SA mode supported by the second signal path; Among them, the processor's judgment of whether the power amplifier module in the current signal path is operating abnormally according to the power of the FBRX signal includes: the processor judges whether the difference between the power of the FBRX signal and a preset target power is greater than a preset first threshold. If it is greater, it is determined that the judgment result is that the power amplifier module in the current signal path is operating abnormally. If it is not greater, it is determined that the judgment result is that the power amplifier module in the current signal path is operating normally; The processor is further configured to: Perform FBRX detection on the radio frequency signal in the first signal path to obtain the FBRX signal of the first signal path, and judge whether the first power amplifier module in the first signal path is operating abnormally according to the power of the FBRX signal of the first signal path. In response to the judgment result that the first power amplifier module in the first signal path is operating normally, switch the signal path to the first signal path and the second signal path, so that the radio frequency processing circuit switches from the SA mode supported by the second signal path to the Standalone (SA) uplink multiple-input multiple-output (MIMO) mode supported by the first signal path and the second signal path.

4. A wireless communication device, characterized in that, It includes the radio frequency system as described in claim 3.

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