Radio frequency system, coexistence communication method, communication device, and readable storage medium

Abstract

This application relates to a radio frequency (RF) system, a coexistence communication method, a communication device, and a readable storage medium. The RF system includes: a first RF circuit for operating in a first frequency band and power-coupled to output a first coupled signal; a second RF circuit for operating in a second frequency band and power-coupled to output a second coupled signal; and a processing circuit connected to both the first and second RF circuits, configured to, in the event of adjacent-channel interference between the first RF signal in the first frequency band and the second RF signal in the second frequency band, reduce the transmission power of the interfering signal and increase the reception power of the interfered signal according to the type of interference, thereby effectively reducing mutual interference between the first RF signal and the second RF signal (e.g., Wi-Fi communication and cellular communication) when they coexist without sacrificing the effective operating bandwidth of the first and second RF signals.

Description

Technical Field

[0001] This application relates to the field of radio frequency technology, and in particular to a radio frequency system, a coexistence communication method, a communication device, a computer-readable storage medium, and a computer program product. Background Technology

[0002] With the continuous increase in the demand for network access and interconnection between devices, a single communication method can no longer meet the needs. Therefore, more and more devices are equipped with multiple communication methods to meet the needs of network access and interconnection, such as Long-Term Evolution (LTE), 5th Generation Mobile Communication Technology (5G), New Radio (NR), Wireless Fidelity (Wi-Fi), Bluetooth (BT), and so on.

[0003] However, when cellular communication and Wi-Fi communication are working simultaneously, there is a problem of coexistence and interference between them. For example, there is relatively serious adjacent channel interference between cellular signals operating in the N79 band and Wi-Fi signals operating in the 5G band. Summary of the Invention

[0004] This application provides a radio frequency system and communication device that can effectively reduce mutual interference when a first radio frequency signal and a second radio frequency signal (e.g., Wi-Fi communication and cellular communication) coexist without sacrificing the effective operating bandwidth of the first radio frequency signal and the second radio frequency signal.

[0005] The first aspect provides a radio frequency system, comprising:

[0006] The first radio frequency circuit is used to operate in the first frequency band and to power couple the received signal to output a first coupling signal;

[0007] The second radio frequency circuit is used to operate in the second frequency band and to power couple the received signal to output a second coupled signal;

[0008] The processing circuit is connected to the first radio frequency circuit and the second radio frequency circuit respectively. It is used to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal according to the interference type when there is adjacent channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band. The interference type is determined according to the first coupling signal and the second coupling signal. The interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

[0009] The second aspect provides a coexistence communication method, including:

[0010] The first coupling signal output by the first radio frequency circuit and the second coupling signal output by the second radio frequency circuit are respectively acquired; wherein, the first radio frequency circuit is used to support the first frequency band and the second radio frequency circuit supports the second frequency band.

[0011] In the event of adjacent-channel interference between a first radio frequency signal in the first frequency band and a second radio frequency signal in the second frequency band, the transmission power of the interfering signal is reduced and the reception power of the interfered signal is increased according to the type of interference. The type of interference is determined according to a first coupling signal and a second coupling signal. The interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

[0012] The third aspect provides a communication device, including the aforementioned radio frequency system.

[0013] The fourth aspect provides a communication device, comprising: a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the aforementioned coexistence communication method.

[0014] The fifth aspect provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the aforementioned coexistence communication method.

[0015] The sixth aspect provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the aforementioned coexistence communication method.

[0016] The aforementioned radio frequency system, coexistence communication method, communication device, computer-readable storage medium, and computer program product receive a first coupling signal from a first radio frequency front-end module and a second coupling signal from a second radio frequency front-end module. The received first and second coupling signals determine the type of adjacent-channel interference between the two radio frequencies. Based on this interference type, the system can adjust the transmission or reception parameters of the first and second radio frequency front-end modules to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal. This avoids blocking of the reception link for the interfered signal, thereby improving the reception performance of non-interfering signals. This method enables a fully closed-loop control approach, effectively reducing mutual interference when first and second radio frequency signals (e.g., Wi-Fi and cellular communication) coexist without sacrificing the effective operating bandwidth of the first and second radio frequency signals. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is one of the structural block diagrams of a radio frequency system in one embodiment;

[0020] Figure 2 This is a second structural block diagram of a radio frequency system according to one embodiment;

[0021] Figure 3 This is the third structural block diagram of the radio frequency system in one embodiment;

[0022] Figure 4 This is the fourth block diagram of the radio frequency system in one embodiment;

[0023] Figure 5 This is the fifth block diagram of the radio frequency system in one embodiment;

[0024] Figure 6 This is a block diagram of the radio frequency system in one embodiment;

[0025] Figure 7 This is the seventh structural block diagram of a radio frequency system in one embodiment;

[0026] Figure 8 Here is a flowchart of a coexistence communication method in one embodiment;

[0027] Figure 9 This is a structural block diagram of a communication device in one embodiment.

[0028] Component designation explanation:

[0029] 110 - First radio frequency circuit; 111 - First communication module; 112 - First radio frequency front-end module; 101 - First coupling unit;

[0030] 120 - Second radio frequency circuit; 121 - Second communication module; 122 - Second radio frequency front-end module; 102 - Second coupling unit;

[0031] 130 - Processing circuit; 131 - Power detection module; 1311 - Detector; 1312 - Low noise amplifier;

[0032] Processing module 132; 1321 - processing unit; 1322 - conversion unit. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] It is understood that the terms "first," "second," etc., used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first radio frequency circuit may be referred to as a second radio frequency circuit, and similarly, a second radio frequency circuit may be referred to as a first radio frequency circuit. Both the first radio frequency circuit and the second radio frequency circuit are transmitting circuits, but they are not the same transceiver circuit.

[0035] like Figure 1 As shown, this application provides a radio frequency system that can support wireless communication of multiple different communication standards, such as cellular mobile communication (hereinafter referred to as cellular communication), Wi-Fi communication, Bluetooth communication, Zigbee communication, etc.

[0036] The radio frequency system includes a first radio frequency circuit 110, a second radio frequency circuit 120, and a processing circuit 130.

[0037] A first radio frequency (RF) circuit 110 is configured to operate in a first frequency band and power-couple received signals to output a first coupled signal. The first RF circuit 110 supports both receiving and transmitting the first RF signal in the first frequency band. For example, the first RF circuit 110 may include a receiving link for supporting the receiving of the first RF signal and a transmitting link for supporting the transmitting of the first RF signal. The transmitting link is provided with a first coupling unit 101, which performs power coupling on the received signal to output the first coupled signal. The signals coupled by the first coupling unit 101 include, but are not limited to, the first RF signal.

[0038] The second radio frequency (RF) circuit 120 is configured to operate in a second frequency band and power-couple the received signal to output a second coupled signal. The second RF circuit 120 can support both receiving and transmitting the second RF signal in the second frequency band. For example, the second RF circuit 120 may include a receiving link for supporting the receiving of the second RF signal and a transmitting link for supporting the transmitting of the second RF signal. The transmitting link is provided with a second coupling unit 102, which can power-couple the received signal to output the second coupled signal. The signals coupled by the second coupling unit 102 include, but are not limited to, the second RF signal.

[0039] The frequency ranges corresponding to the first radio frequency signal and the second radio frequency signal are adjacent. Adjacency can be understood as the frequency ranges of the two radio frequency signals partially overlapping or being close. That is, there is adjacent-channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band. The first radio frequency signal and the second radio frequency signal use different communication standards. For example, the first radio frequency signal may be a Wi-Fi signal, and the second radio frequency signal may be a cellular signal. In an exemplary embodiment, the first radio frequency signal may be a Bluetooth signal, and the second radio frequency signal may be a cellular signal. In an exemplary embodiment, the first radio frequency signal may be a Wi-Fi signal, and the second radio frequency signal may be a Zigbee signal.

[0040] In one exemplary embodiment, the first frequency band is the Wi-Fi 5G band, and the second frequency band is the N79 band. The frequency range of the cellular signal N79 is 4.4GHz-5GHz, and the frequency range of the Wi-Fi 5G band is 5.15GHz-5.835GHz. Because the frequency interval between the N79 band and the 5G band is only 150MHz, and because the N79 band has a wider bandwidth, there is significant adjacent-channel interference between the cellular signal operating in the N79 band and the Wi-Fi signal operating in the 5G band.

[0041] In one exemplary embodiment, the first frequency band is the Wi-Fi 2.4G band, and the second frequency band is the B40 band or the B41 band.

[0042] In one exemplary embodiment, the first frequency band is the Wi-Fi 2.4G band, and the second frequency band is the N40 band or the N41 band.

[0043] In one exemplary embodiment, the first frequency band is the Wi-Fi 2.4G band, and the second frequency band is the N77 band.

[0044] In one exemplary embodiment, the first frequency band is the Bluetooth signal frequency band, and the second frequency band is the N77 band, B40 band, B41 band, N40 band, or N41 band.

[0045] The processing circuit 130 is connected to the first radio frequency circuit 110 and the second radio frequency circuit 120 respectively, and is used to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal according to the type of interference when there is adjacent channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band.

[0046] In this embodiment, the processing circuit 130 can acquire relevant information such as the operating status of the first radio frequency circuit 110 and the second radio frequency circuit 120 to determine whether the first radio frequency circuit 110 and the second radio frequency circuit 120 are operating simultaneously. When the first radio frequency circuit 110 and the second radio frequency circuit 120 are operating simultaneously, it can be determined that there is adjacent channel interference between the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band.

[0047] The processing circuit 130 can also determine the type of adjacent-channel interference between the two radio frequencies based on the received first and second coupling signals. The interference type can include a first type and a second type. The first type can be a first radio frequency signal interfering with a second radio frequency signal; for example, the first radio frequency signal affects the reception of the second radio frequency signal. The second type includes a second radio frequency signal interfering with a first radio frequency signal; for example, the second radio frequency signal affects the reception of the first radio frequency signal. In the first type, the first radio frequency signal is the interfering signal, and the second radio frequency signal is the interfered signal; in the second type, the second radio frequency signal is the interfering signal, and the first radio frequency signal is the interfered signal. In this embodiment, the processing circuit 130 can, based on the interference type, control the reduction of the transmission parameters of the interfering signal to reduce its transmission power, and control the increase of the reception parameters of the interfered signal to increase its reception power. The transmission parameters include, but are not limited to, the amplification gain coefficient of the power amplifier in the transmission link, and the reception parameters include, but are not limited to, the low-noise amplification gain coefficient of the low-noise amplifier in the reception link.

[0048] In this embodiment, the processing circuit 130 can be connected to the first radio frequency circuit 110 and the second radio frequency circuit 120 respectively. It can receive a first coupling signal from the first radio frequency circuit 110 and a second coupling signal from the second radio frequency circuit 120. The received first and second coupling signals determine the type of adjacent-channel interference between the two radio frequency signals. Based on this interference type, it can adjust the transmission or reception parameters of the first radio frequency circuit 110 and the second radio frequency circuit 120 to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal. This avoids blocking of the reception link of the interfered signal, thereby improving the reception performance of non-interfering signals. Therefore, based on the first coupling signal of the first radio frequency circuit 110 and the second coupling signal of the second radio frequency circuit 120, the processing circuit 130 can adjust the operating parameters of the first radio frequency circuit 110 and the second radio frequency circuit 120. This achieves a completely closed-loop control method, effectively reducing mutual interference when the first and second radio frequency signals (e.g., Wi-Fi communication and cellular communication) coexist without sacrificing the effective operating bandwidth of the first and second radio frequency signals.

[0049] like Figure 2 and Figure 3 As shown, in an exemplary embodiment, the first radio frequency circuit 110 includes a first communication module 111 and a first radio frequency front-end module 112. The first communication module 111 can be used to provide a first radio frequency signal. If the first radio frequency signal is a WiFi signal, the first communication module 111 may include one of a Wi-Fi chip and a Wi-Fi & BT chip.

[0050] A first radio frequency (RF) front-end module 112, connected to a first communication module 111, is used to support the transmission and reception of a first RF signal and to perform power coupling on the received signal to output a first coupled signal. Exemplarily, the first RF front-end module 112 may include a first transceiver link, which may be connected to the first communication module 111 and a first antenna assembly, respectively. Each first transceiver link may include a first transmit link and a first receive link. Exemplarily, its first transmit link may include, but is not limited to, a first power amplifier PA1 and a first coupling unit 101. Optionally, the first transmit link may further include a first filter disposed between the first power amplifier and the first coupling unit 101.

[0051] The first receiving link includes, but is not limited to, a first low-noise amplifier (LNA1) and a second filter.

[0052] For example, the first transceiver link may further include a first switching switch, which is connected to the first receiving link, the first transmitting link and the antenna end for connecting the antenna assembly, respectively, for switching the first receiving link and the first transmitting link.

[0053] The second radio frequency circuit 120 includes: a second communication module 121 and a second radio frequency front-end module 122.

[0054] The second communication module 121 is used to provide a second radio frequency signal. If the second radio frequency signal is a cellular signal, the second communication module 121 may include a cellular radio frequency transceiver.

[0055] The second RF front-end module 122, connected to the second communication module 121, is used to support the transmission and reception of the second RF signal and the power coupling of the received signal to output a second coupled signal. Exemplarily, the second RF front-end module 122 may include at least one second transceiver link, each of which may be connected to the second communication module 121 and a second antenna component, respectively. Each second transceiver link may include a second transmit link and a second receive link. Exemplarily, its second transmit link may include, but is not limited to, a second power amplifier PA2 and a second coupling unit 102. Optionally, the second transmit link may also include a third filter disposed between the second power amplifier PA2 and the second coupling unit 102.

[0056] The second receiving link includes, but is not limited to, a second low-noise amplifier (LNA2) and a third filter.

[0057] For example, the second transceiver link may further include a second switching switch, which is connected to the second receiving link, the second transmitting link and the antenna end for connecting the antenna assembly, respectively, for switching the second receiving link and the second transmitting link.

[0058] The first coupling unit 101 and the second coupling unit 102 may each include one of a directional coupler, a dual directional coupler, and a hybrid coupler. In this embodiment, for ease of explanation, the example of the first coupling unit 101 and the second coupling unit 102 each including a directional coupler is provided. The directional coupler is typically a four-port network, including an input terminal (port 1), a through terminal (port 2), a coupling terminal (port 3), and an isolation terminal (port 4). When a signal is input from the input terminal, in addition to a portion of the power being directly output from the through terminal, a portion of the power is coupled to the coupling terminal and output, but not from the isolation terminal. The input terminal of the directional coupler can be directly or indirectly connected to the output terminal of the power amplifier on the corresponding transmit link. The through terminal of the directional coupler can be used to connect to an antenna assembly, and the coupling terminals of the directional coupler are respectively connected to the processing circuit 130. For example, the coupling terminal of the first coupling unit 101 can output a first coupling signal to the processing circuit 130, and the coupling terminal of the second coupling unit 102 can output a second coupling signal to the processing circuit 130.

[0059] In one exemplary embodiment, please continue to refer to Figure 2 The antenna end of the first RF front-end module 112 (e.g., the through end of the first coupling unit 101) can be connected to the first antenna assembly ANT1, and the antenna end of the second RF front-end module 122 (e.g., the through end of the second coupling unit 102) can be connected to the second antenna assembly ANT2. In this embodiment, for ease of explanation, the first RF signal is a Wi-Fi signal and the second signal is a cellular signal. In this embodiment, the antenna between the first RF front-end module 112 and the second RF front-end module 122 is a split antenna, and the coupling between the first RF signal and the second RF signal is mainly the coupling between the individual antennas.

[0060] In one exemplary embodiment, please continue to refer to Figure 3 The first RF front-end module 112 and the second RF front-end module 122 can share the same antenna assembly, for example, they can share a third antenna assembly ANT3. When sharing the same antenna assembly, the RF system may further include a combiner 140. The two first terminals of the combiner 140 are respectively connected to the antenna terminals of the first RF front-end module 112 and the second RF front-end module 122, and the common terminal of the combiner 140 is connected to the third antenna assembly ANT3. In this embodiment, the first RF front-end module 112 and the second RF front-end module 122 adopt a shared antenna design, and the two signals are separated through the combiner 140.

[0061] In this embodiment, the processing circuit 130 can be connected to the first RF front-end module 112 and the second RF front-end module 122 respectively. It can receive a first coupling signal from the first RF front-end module 112 and a second coupling signal from the second RF front-end module 122. The received first and second coupling signals determine the type of adjacent-channel interference between the two RF signals. Based on this interference type, it can adjust the transmission or reception parameters of the first RF front-end module 112 and the second RF front-end module 122 to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal, thereby preventing the reception link of the interfered signal from being blocked and improving the reception performance of the non-interfering signal. This method enables the processing circuit 130 to communicate with the first RF front-end module 112 and the second RF front-end module 122 respectively, achieving a completely closed-loop adjustment method. This effectively reduces the mutual interference between the first and second RF signals (e.g., Wi-Fi communication and cellular communication) when they coexist without sacrificing the effective operating bandwidth of the first and second RF signals.

[0062] In an exemplary embodiment, the processing circuit 130 is further connected to the first communication module 111 and the second communication module 121, respectively. The processing circuit 130 is also configured to determine the presence of adjacent-channel interference upon receiving a first control signal output from the first communication module 111 to the first RF front-end module 112 and a second control signal output from the second communication module 121 to the second RF front-end module 122. The first RF front-end module 112 operates in response to the first control signal; the second RF front-end module 122 operates in response to the second control signal.

[0063] The first control signal is a signal output from the first communication module 111 to the first RF front-end module 112, used to control the first RF front-end module 112 to start working. It can be understood that the first RF front-end module 112 operates in response to the first control signal. The second control signal is a signal output from the second communication module 121 to the second RF front-end module 122, used to control the second RF front-end module 122 to start working. It can be understood that the second RF front-end module 122 operates in response to the second control signal. For example, the first and second control signals may include, but are not limited to, signals that control the operation of a power amplifier, signals that control the operation of a low-noise amplifier, etc.

[0064] When the processing circuit 130 can simultaneously acquire the first control signal and the second control signal at a certain moment, it indicates that the first RF front-end module 112 and the second RF front-end module 122 are in a state of simultaneous operation, which means that there is adjacent channel interference between the first RF signal and the second RF signal.

[0065] In this embodiment, the processing circuit 130 can communicate with the first communication module 111 and the second communication module 121 to determine whether the first radio frequency front-end module 112 and the second radio frequency front-end module 122 are operating simultaneously, and to determine whether there is adjacent-channel interference between the first radio frequency signal and the second radio frequency signal. In this way, without the need to add an additional high-power application processor, it can determine whether there is adjacent-channel interference between the first radio frequency signal and the second radio frequency signal, and if there is adjacent-channel interference, it can adjust the transmission or reception parameters of the first radio frequency front-end module 112 and the second radio frequency front-end module 122 according to the type of interference to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal. This overcomes the mutual interference between the first radio frequency signal and the second radio frequency signal when they coexist without sacrificing the effective operating bandwidth of the first radio frequency signal and the second radio frequency signal.

[0066] In an exemplary embodiment, the processing circuit 130 includes a radio frequency (RF) chip. This RF chip can be understood as a proprietary RF chip, which can be connected to coupling units in the first RF circuit 110 and the second RF circuit 120 to detect the power corresponding to the coupled signal. Furthermore, the RF chip can output corresponding adjustment signals to the corresponding RF front-end module according to the type of interference, thereby adjusting the operating parameters of the RF front-end module, thereby reducing the transmission power of the interfering signal and increasing the received power of the interfered signal.

[0067] In this embodiment, an RF chip can be used to replace the application processor in the related technology. It is low in cost and can also achieve mutual communication with the first RF circuit 110 and the second RF circuit 120 to achieve a completely closed-loop regulation method. This overcomes the mutual interference when the first RF signal and the second RF signal (e.g., Wi-Fi communication and cellular communication) coexist without sacrificing the effective working bandwidth of the first RF signal and the second RF signal.

[0068] like Figure 4 As shown, in an exemplary embodiment, the processing circuit 130 includes a power detection module 131 and a processing module 132.

[0069] The power detection module 131 is connected to the first radio frequency circuit 110 and the second radio frequency circuit 120, respectively, and is used to obtain the first power corresponding to the first coupling signal and the second power corresponding to the second coupling signal. For example, the power detection module 131 can obtain the first power corresponding to the first coupling signal and the second power corresponding to the second coupling signal by performing detection processing and amplification processing on the power carried in the input first coupling signal and the second coupling signal.

[0070] In an exemplary embodiment, the power detection module 131 can also analyze the power carried by the first coupling signal and the second coupling signal, and can obtain the magnitude and phase of the first power corresponding to the first coupling signal, and obtain the magnitude and phase of the second power corresponding to the second coupling signal.

[0071] like Figure 5 As shown, exemplarily, the power detection module 131 may include a detector 1311 and a low-noise amplifier 1312. The detector 1311, also known as a phase detector or demodulator, can be connected to the first coupling unit 101 in the first RF circuit 110 and the first coupling unit 101 in the second RF circuit 120, respectively, to support detection processing of the first coupled signal and the second coupled signal. The input terminal of the low-noise amplifier 1312 is connected to the detector 1311, and the output terminal of the low-noise amplifier 1312 is connected to the processing module 132. The low-noise amplifier 1312 can amplify the detected signal to obtain the first power corresponding to the first coupled signal and the second power corresponding to the second coupled signal. In this embodiment, the power detection module 131, including the detector 1311 and the low-noise amplifier 1312, can more accurately obtain the first power of the first RF signal and the second power of the second RF signal, thereby improving the accuracy of determining the interference type between the first RF signal and the second RF signal.

[0072] The processing module 132 can determine the interference type based on the received first power and second power, and output a first adjustment signal and a second adjustment signal based on the interference type. The first adjustment signal is used to reduce the transmission power of the interfering signal, and the second adjustment signal is used to increase the received power of the interfered signal. It can be understood that the first adjustment signal is used to reduce the transmission coefficient, such as the gain coefficient, of the power amplifiers in each transmission link; and the second adjustment signal is used to increase the reception parameters, such as the gain coefficient, of the low-noise amplifiers in each reception link.

[0073] In an exemplary embodiment, the processing module 132 is further configured to output a first adjustment signal to the first radio frequency circuit 110 to reduce the power amplification gain coefficient of the transmit link of the first radio frequency circuit 110 when the interference type is a first type, and to output a second adjustment signal to the second radio frequency circuit 120 to increase the low noise amplification gain coefficient of the receive link of the second radio frequency circuit 120.

[0074] For example, when the interference type is of the first type (e.g., a first radio frequency signal interfering with a second radio frequency signal), the processing module 132 can output a first adjustment signal to the transmit link of the first radio frequency circuit 110 and a second adjustment signal to the receive link of the second radio frequency circuit 120. The first adjustment signal can be used to adjust the output power of the power amplifier in the transmit link of the first radio frequency circuit 110, reducing the gain coefficient of the power amplifier to decrease the power of the first radio frequency signal output by the first radio frequency circuit 110. The second adjustment signal can be used to adjust the output power of the low-noise power amplifier in the receive link of the second radio frequency circuit 120, increasing the gain coefficient of the low-noise amplifier to increase the power amplification factor of the second radio frequency signal by the second radio frequency circuit 120.

[0075] In an exemplary embodiment, the processing module 132 is further configured to output a second adjustment signal to the first radio frequency circuit 110 to increase the low noise amplification gain coefficient of the receiving link of the first radio frequency circuit 110 when the interference type is the second type, and to output a first adjustment signal to the second radio frequency circuit 120 to reduce the power amplification gain coefficient of the transmitting link of the second radio frequency circuit 120.

[0076] For example, when the interference type is type two (e.g., a second radio frequency signal interfering with a first radio frequency signal), the processing module 132 can output a first adjustment signal to the transmit link of the second radio frequency circuit 120 and to the receive link of the first radio frequency circuit 110. The first adjustment signal can be used to adjust the output power of the power amplifier in the transmit link of the second radio frequency circuit 120, reducing the gain coefficient of the power amplifier to decrease the power of the second radio frequency signal output by the second radio frequency circuit 120. The second adjustment signal can be used to adjust the output power of the low-noise power amplifier in the receive link of the first radio frequency circuit 110, increasing the gain coefficient of the low-noise amplifier to increase the power amplification factor of the first radio frequency circuit 110 for the first radio frequency signal.

[0077] In this embodiment, the processing module 132 can determine the type of interference between the first radio frequency signal in the first radio frequency circuit 110 and the first radio frequency signal in the second radio frequency circuit 120 based on their first power. Then, according to the interference type, it reduces the transmission power of the interfering signal and increases the reception power of the interfered signal. Compared to related technologies that only adjust power, this application can adjust both the gain of the power amplifier and the gain of the low-noise amplifier, effectively reducing the mutual interference between the coexisting first and second radio frequency signals while improving the reception performance of the interfered signal. Furthermore, in this embodiment, the radio frequency system, based on the processing module 132 in the radio frequency chip, can achieve mutual communication with the first radio frequency circuit 110 and the second radio frequency circuit 120, enabling closed-loop control of the first radio frequency circuit 110 and the second radio frequency circuit 120. This eliminates the need for an application processor as in related technologies, thereby reducing the power consumption of the radio frequency system.

[0078] Please continue to refer to this. Figure 5 In one exemplary embodiment, the processing module 132 includes a processing unit 1321 and a conversion unit 1322. The processing unit 1321 is connected to the power detection module 131 and is used to determine the interference type based on a first power and a second power, and to output a first digital signal and a second digital signal based on the interference type. Exemplarily, the processing unit 1321 may be a central processing unit 1321 or a microprocessor.

[0079] The conversion unit 1322 is connected to the processing unit 1321, the first RF circuit 110, and the second RF circuit 120, respectively, and is used to convert the digital signal output by the processing unit 1321 into a MIPI signal or a GPIO signal that can be recognized by the RF front-end module. For example, for ease of explanation, the description will be based on the premise that both the first and second adjustment signals are MIPI. The conversion unit 1322 can convert the first digital signal into a first adjustment signal (e.g., a first MIPI signal) and convert the second digital signal into a second adjustment signal (e.g., a second MIPI signal).

[0080] In an exemplary embodiment, the conversion unit 1322 may also be connected to the first communication module 111 and the second communication module 121 to receive MIPI control commands from the first communication module 111 and the second communication module 121, and forward the received MIPI control commands to the first RF front-end module 112 and the second RF front-end module 122 respectively, so as to realize the on / off control of the switching switch, the gain control of the power amplifier, the gain control of the low noise amplifier, etc. in the RF front-end module.

[0081] In this embodiment, the processing module 132 includes a processing unit 1321 and a conversion unit 1322. The conversion unit 1322 can convert between digital signals and MIPI or GPIO signals. Without the need for an additional application processor, a lower-power processing circuit 130, such as an RF chip, can be used to achieve communication with the first front-end module and the second front-end module.

[0082] In an exemplary embodiment, the processing module 132 is further configured to determine the interference type as a second type when the absolute value of the difference between the first power and the first reference power is greater than or equal to a first threshold, and the absolute value of the difference between the second power and the second reference power is less than a second threshold. The first threshold and the second threshold can be the same or different. For example, the first threshold and the second threshold can be 1dB, 2dB, or other values, respectively. In this embodiment, the specific values ​​of the first threshold and the second threshold are not limited.

[0083] Wherein, the first reference power is the transmission power of the first radio frequency signal under interference-free conditions, and the second reference power is the transmission power of the second radio frequency signal under interference-free conditions. The first and second reference powers can be preset, acquired, and stored in the processing module 132.

[0084] For example, in this embodiment, the first threshold and the second threshold are both 1dB. If the absolute value of the difference between the first power and the first reference power is greater than or equal to the first threshold of 1dB, and the absolute value of the difference between the second power and the second reference power is less than the second threshold, it indicates that the power fluctuation of the first radio frequency signal is large, and it is being interfered with; the power fluctuation of the second radio frequency signal is small, and it is not being interfered with. For example, if the first power is greater than the first reference power, the difference between the first power and the first reference power is greater than 2dB, and the second power is equal to the second reference power with a difference of 0dB, it indicates that the second radio frequency signal interferes with the first radio frequency signal. Alternatively, if the first power is less than the first reference power, the difference between the first power and the first reference power is less than -2dB, and the second power is equal to the second reference power with a difference of 0dB, it indicates that the second radio frequency signal interferes with the first radio frequency signal. In this case, the processing module 132 can confirm that the interference type is the second interference type, that is, the type where the second radio frequency signal interferes with the first radio frequency signal.

[0085] Accordingly, the processing module 132 is further configured to determine the interference type as the first type when the absolute value of the difference between the first power and the first reference power is less than the first threshold and the absolute value of the difference between the second power and the second reference power is greater than or equal to the second threshold.

[0086] If the absolute value of the difference between the first power and the first reference power is less than the first threshold, it indicates that the first radio frequency signal is not interfered with; if the absolute value of the difference between the second power and the second reference power is greater than or equal to the second threshold, it indicates that the second radio frequency signal is interfered with. Thus, it can be known that the first radio frequency signal interferes with the second radio frequency signal, and the processing module 132 can confirm that the interference type is the first interference type, that is, the type of interference between the first radio frequency signal and the second radio frequency signal.

[0087] In an exemplary embodiment, the processing module 132 is further configured to determine the interference type as a first type if the absolute value of the difference between the first power and the second power is greater than or equal to a third threshold. The processing module 132 is also configured to determine the interference type as a second type if the absolute value of the difference between the first power and the second power is less than the third threshold.

[0088] For example, the third threshold can be 3dB or other values. In this embodiment, for ease of explanation, a third threshold of 3dB will be used as an example. For instance, if the absolute value of the difference between the first power and the second power is 4dB, the processing module 132 confirms that the first radio frequency signal interferes with the second radio frequency signal, that is, the interference type is the first type. If the absolute value of the difference between the first power and the second power is 2dB, the processing module 132 confirms that the second radio frequency signal interferes with the first radio frequency signal, that is, the interference type is the second type.

[0089] In this embodiment, the presence and type of interference between the first and second radio frequency signals can be determined based on the first power of the first radio frequency signal in the first radio frequency circuit 110 and the first power of the second radio frequency signal in the second radio frequency circuit 120. This allows for rapid determination of the type of interference between the radio frequency signals and improves the accuracy of interference type determination. Furthermore, the operating parameters of the first and second radio frequency circuits 110 and 120 can be adjusted based on the confirmed interference type to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal. This effectively reduces the mutual interference when the first and second radio frequency signals (e.g., cellular communication and Wi-Fi communication) coexist.

[0090] In one exemplary embodiment, please continue to refer to Figure 3 and Figure 4 The processing circuit 130 in the radio frequency system is also used to adjust the matching parameters of the target antenna component when the first radio frequency circuit 110 and the second radio frequency circuit 120 do not reuse the same antenna component and there is adjacent channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band, so that the isolation between the first antenna component ANT1 and the second antenna component ANT2 is increased relative to the initial state.

[0091] In this embodiment, the first radio frequency circuit 110 and the second radio frequency circuit 120 do not reuse the same antenna component. This can be understood as the first radio frequency front-end module 112 of the first radio frequency circuit 110 being connected to the first antenna component ANT1, and the second radio frequency front-end module 122 of the second radio frequency circuit 120 being connected to the second antenna component ANT2. In this application embodiment, the target antenna component may include the first antenna component ANT1, or the target antenna group may include the second antenna component ANT2; or the target antenna group may include the first antenna group and the second antenna group.

[0092] The first antenna assembly ANT1 and the second antenna assembly ANT2 may each include an antenna and a matching network connected to the antenna. Exemplarily, the matching network may each include multiple lumped elements, which may be connected in parallel, series, or series-parallel configurations. The lumped elements may be capacitors, inductors, or resistors. In this embodiment, the specific combination of the matching network is not limited. Matching parameters may include parameters of the lumped elements, such as inductance, capacitance, or resistance values.

[0093] The initial state refers to the state before the matching parameters of the target antenna are adjusted.

[0094] When the processing circuit 130 determines that there is interference between the first radio frequency signal and the second radio frequency signal, it adjusts the matching parameters of the target antenna assembly to improve the isolation between the first antenna assembly ANT1 and the second antenna assembly ANT2 relative to the initial state, thereby increasing the isolation between the first antenna assembly ANT1 and the second antenna assembly ANT2, which can reduce the mutual coupling effect between the first antenna assembly ANT1 and the second antenna assembly ANT2, and thus reduce the interference between the first antenna assembly ANT1 and the second antenna assembly ANT2.

[0095] For example, the processing circuit 130 can adjust the matching parameters of the target antenna assembly to change the radiation direction of the target antenna assembly, making the radiation direction of the first antenna assembly ANT1 as opposite as possible to the radiation direction of the second antenna assembly ANT2, so that the isolation between the first antenna assembly ANT1 and the second antenna assembly ANT2 is greater than the initial state. The radiation direction of the first antenna assembly ANT1 being as opposite as possible to the radiation direction of the second antenna assembly ANT2 can be understood as the angle between the strongest radiation direction of the first antenna assembly and the strongest radiation direction of the second antenna assembly ANT2 being within a preset range. For example, the preset range can be 170-190 degrees, such as an angle of 170°, 175°, 180°, 185°, or 190°. It should be noted that the strongest radiation direction of the first antenna assembly ANT1 and the second antenna assembly ANT2 refers to the strongest radiation direction of the antenna in the first antenna assembly ANT1 and the antenna in the second antenna assembly ANT2.

[0096] In an exemplary embodiment, the processing circuit 130 may further determine the target antenna component based on the type of interference. For example, the target antenna may be the antenna component corresponding to the interference signal. For instance, if the interference type is a first type, i.e., a first radio frequency signal interferes with a second radio frequency signal, the target antenna is a first antenna component ANT1 used to support the first radio frequency signal. If the interference type is a second type, i.e., a second radio frequency signal interferes with a first radio frequency signal, the target antenna is a second antenna component ANT2 used to support the second radio frequency signal.

[0097] In the above embodiments, when the processing circuit 130 (e.g., an RF chip) determines that there is adjacent-channel interference between the first RF signal in the first frequency band and the second RF signal in the second frequency band, and the first RF circuit 110 and the second RF circuit 120 do not reuse the same antenna component, it can obtain the corresponding coupling signal from the coupling unit in the first RF front-end module 112 and the second RF front-end module 122. This allows it to determine the corresponding first power and second power. Based on the first power and second power, the interference type between the two RF signals can be determined. According to the interference type, the operating parameters (e.g., transmit parameters or receive parameters) of the first RF front-end module 112 and the second RF front-end module 122 can be fed back for control. Furthermore, the matching parameters of the target antenna component can be adjusted to enhance the isolation between the two antenna components. Compared to related technologies that only reduce transmit power to avoid interference, this application can also increase the received power of the interfered signal and adjust the matching parameters of the target antenna component, employing a multi-dimensional, fully closed-loop system adjustment method. This can further effectively reduce the mutual interference between the coexisting first RF signal and the second RF signal.

[0098] like Figure 6 and Figure 7 As shown, in an exemplary embodiment, for ease of explanation, the first radio frequency signal is a WiFi signal and the second signal is a cellular signal. The second radio frequency circuit 120 includes at least two second transceiver links, each configured with an antenna component, and each second transceiver link is connected to a different antenna component. Each second transceiver link's transmit link is provided with a second coupling unit 102 for power coupling. The antenna components configured in each second transceiver link are located differently in the radio frequency system, and their isolation from the antenna components connected to the first transceiver link is also different. By setting at least two transceiver links, the radio frequency system in this embodiment can support time-division multiplexing of multiple second radio frequency signals.

[0099] In this embodiment, the antenna assembly connected to the second transceiver link is also connected to the first transceiver link via a combiner 140.

[0100] The processing circuit 130 is also used to acquire the target interference link and the interference type of the target interference link, and to adjust the operating parameters of the first radio frequency circuit and the target interference link according to the interference type of the target interference link. The operating parameters may include transmission parameters or reception parameters. The target interference link is the link with the least adjacent-channel interference to the first transceiver link of the first radio frequency circuit.

[0101] In this embodiment, the antenna assembly connected to the first transceiver link in the first RF front-end module 112 is referred to as the first antenna assembly ANT1 (or ANT3), and the antenna assembly connected to each of the second transceiver links in the second RF circuit is referred to as the second antenna assembly ANT2. The target interference link can be the second transceiver link connected to the second antenna assembly ANT2, which is furthest from the antenna assembly. The processing circuit can pre-identify and store the target interference link. In this way, the processing circuit can directly obtain the second power corresponding to the target interference link, determine the interference type of the target interference link based on the second power and the first power corresponding to the first RF circuit, and then reduce the transmission power of the interference signal and increase the reception power of the interfered signal based on the interference type.

[0102] In an exemplary embodiment, the processing circuit may be connected to the first coupling unit 101 in the first radio frequency circuit 110 and the second coupling unit 102 in each second transceiver link, respectively. It is also used to determine the interference type of the target interference link based on the first coupling signal and each second coupling signal output by each second coupling unit 102, and to adjust the operating parameters of the first radio frequency circuit 110 and the target interference link according to the interference type of the target interference link, so as to reduce the transmission power of the interference signal and increase the reception power of the interfered signal.

[0103] In an exemplary embodiment, the processing circuit may further adjust the matching parameters of the target antenna assembly to increase the isolation between the first antenna assembly ANT1 and the second target antenna assembly, the second target antenna assembly being an antenna assembly connected to the target interference link.

[0104] In this embodiment, the radio frequency system can support the transmission and reception of multiple second radio frequency signals. It can determine the target interference link with the least adjacent-channel interference in the first transceiver link of the first radio frequency circuit in the second radio frequency front-end module 122, as well as the interference type of the target interference link. Based on the interference type, the transmission power of the interference signal can be reduced and the reception power of the interfered signal can be increased. In this way, the transmission and reception of the second radio frequency signal can be realized by using the target interference link, which can reduce the impact on the first radio frequency signal and the second radio frequency signal. Under the premise of minimizing the impact on the first radio frequency signal and the second radio frequency signal, the mutual interference of the first radio frequency signal and the second radio frequency signal (e.g., Wi-Fi communication and cellular communication) when they coexist can be effectively reduced, and the communication performance of the radio frequency system supporting the first radio frequency signal and the second radio frequency signal can be improved.

[0105] In one exemplary embodiment, such as Figure 8 As shown, a coexistence communication method is provided, which is applied to... Figure 1 The following description is based on the processing circuit 130, including the following steps 802 to 804.

[0106] Step 802: Obtain the first coupling signal output by the first radio frequency circuit and the second coupling signal output by the second radio frequency circuit; wherein the first radio frequency circuit is used to support the first frequency band and the second radio frequency circuit supports the second frequency band.

[0107] Step 804: In the event of adjacent-channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band, reduce the transmission power of the interfering signal and increase the reception power of the interfered signal according to the type of interference.

[0108] The processing circuit can determine the type of adjacent-channel interference between two radio frequencies based on the received first and second coupling signals. The interfering signal is one of the first and second radio frequency signals, and the interfered signal is the other of the first and second radio frequency signals. The interference type can include a first type and a second type. The first type can be the first radio frequency signal interfering with the second radio frequency signal; for example, the first radio frequency signal affects the reception of the second radio frequency signal. The second type includes the second radio frequency signal interfering with the first radio frequency signal; for example, the second radio frequency signal affects the reception of the first radio frequency signal. In the first type, the first radio frequency signal is the interfering signal, and the second radio frequency signal is the interfered signal; in the second type, the second radio frequency signal is the interfering signal, and the first radio frequency signal is the interfered signal. In this embodiment, the processing circuit 130 can, based on the interference type, control the reduction of the transmission parameters of the interfering signal to reduce its transmission power, and control the increase of the reception parameters of the interfered signal to increase its reception power. The transmission parameters include, but are not limited to, the amplification gain coefficient of the power amplifier in the transmission link, and the reception parameters include, but are not limited to, the low-noise amplification gain coefficient of the low-noise amplifier in the reception link.

[0109] In this embodiment, the processing circuit receives a first coupling signal from the first radio frequency circuit and a second coupling signal from the second radio frequency circuit. The received first and second coupling signals determine the type of adjacent-channel interference between the two radio frequencies. Based on this interference type, the processing circuit adjusts the transmission or reception parameters of the first and second radio frequency front-end modules to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal. This prevents the reception link of the interfered signal from being blocked, thereby improving the reception performance of non-interfering signals. This method achieves a completely closed-loop control approach, effectively reducing mutual interference when the first and second radio frequency signals (e.g., Wi-Fi communication and cellular communication) coexist without sacrificing the effective operating bandwidth of the first and second radio frequency signals.

[0110] In an exemplary embodiment, the coexistence communication method further includes the steps of acquiring a first power corresponding to a first coupling signal and a second power corresponding to a second coupling signal, and determining the type of interference based on the first power and the second power.

[0111] In an exemplary embodiment, the processing circuit can determine the interference type based on a first power and a second power received, and output a first adjustment signal and a second adjustment signal based on the interference type. The first adjustment signal is used to reduce the transmission power of the interfering signal, and the second adjustment signal is used to increase the received power of the interfered signal. It is understood that the first adjustment signal is used to reduce the transmission coefficient of the power amplifier in each transmission link, such as the power amplifier gain coefficient; and the second adjustment signal is used to increase the reception parameters of the low-noise amplifier in each reception link, such as the low-noise amplifier gain coefficient.

[0112] In an exemplary embodiment, reducing the transmit power of the interfering signal and increasing the receive power of the interfering signal according to the type of interference includes the steps of: when the interference type is a first type, outputting a first adjustment signal to a first radio frequency circuit to reduce the power amplification gain coefficient of the transmit link of the first radio frequency circuit, and outputting a second adjustment signal to a second radio frequency circuit to increase the low noise amplification gain coefficient of the receive link of the second radio frequency circuit.

[0113] In an exemplary embodiment, reducing the transmit power of the interfering signal and increasing the receive power of the interfering signal according to the type of interference includes the steps of: when the interference type is a second type, outputting a second adjustment signal to a first radio frequency circuit to increase the low noise amplification gain coefficient of the receive link of the first radio frequency circuit, and outputting a first adjustment signal to a second radio frequency circuit to reduce the power amplification gain coefficient of the transmit link of the second radio frequency circuit.

[0114] In an exemplary embodiment, the coexistence communication method further includes: determining the interference type as a second type when the absolute value of the difference between the first power and the first reference power is greater than or equal to a first threshold and the absolute value of the difference between the second power and the second reference power is less than a second threshold.

[0115] In an exemplary embodiment, the coexistence communication method further includes: determining the interference type as a first type when the absolute value of the difference between the first power and the first reference power is less than a first threshold and the absolute value of the difference between the second power and the second reference power is greater than or equal to a second threshold.

[0116] The first threshold and the second threshold can be the same or different. For example, the first threshold and the second threshold can be 1dB, 2dB, or other values, respectively. In this embodiment, the specific values ​​of the first threshold and the second threshold are not limited. The first reference power is the transmission power of the first radio frequency signal under interference-free conditions, and the second reference power is the transmission power of the second radio frequency signal under interference-free conditions. The first reference power and the second reference power can be preset, acquired, and stored in the processing circuit.

[0117] In an exemplary embodiment, the coexistence communication method further includes: determining the interference type as a first type if the absolute value of the difference between the first power and the second power is greater than or equal to a third threshold.

[0118] In an exemplary embodiment, the coexistence communication method further includes: determining the interference type as a second type if the absolute value of the difference between the first power and the second power is less than a third threshold.

[0119] For example, the third threshold can be 3dB or other values. In this embodiment, for ease of explanation, a third threshold of 3dB will be used as an example. For instance, if the absolute value of the difference between the first power and the second power is 4dB, the processing circuit confirms that the first radio frequency signal interferes with the second radio frequency signal, that is, the interference type is the first type. If the absolute value of the difference between the first power and the second power is 2dB, the processing circuit confirms that the second radio frequency signal interferes with the first radio frequency signal, that is, the interference type is the second type.

[0120] In this embodiment, the existence and type of interference between the first and second radio frequency signals can be determined based on the first power of the first radio frequency signal in the first radio frequency circuit and the first power of the second radio frequency signal in the second radio frequency circuit. This allows for rapid determination of the type of interference between the radio frequency signals and improves the accuracy of interference type determination. Furthermore, the operating parameters of the first and second radio frequency circuits can be adjusted based on the confirmed interference type to reduce the transmission power of the interfering signal and increase the reception power of the interfered signal. This effectively reduces the mutual interference when the first and second radio frequency signals (e.g., cellular communication and Wi-Fi communication) coexist.

[0121] In an exemplary embodiment, when the first radio frequency circuit is connected to the first antenna assembly and the second radio frequency circuit is connected to the second antenna assembly, the coexistence communication method further includes the step of adjusting the matching parameters of the target antenna assembly to increase the isolation between the first antenna assembly and the second antenna assembly when there is adjacent channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band.

[0122] The processing circuit can adjust the matching parameters of the target antenna assembly to change its radiation direction, making the radiation directions of the first and second antenna assemblies as opposite as possible. This increases the isolation between the first and second antenna assemblies relative to their initial state. "The radiation directions of the first and second antenna assemblies being as opposite as possible" can be understood as the angle between the strongest radiation direction of the first antenna assembly and the strongest radiation direction of the second antenna assembly being within a preset range. For example, the preset range could be 170-190 degrees, such as angles of 170°, 175°, 180°, 185°, or 190°.

[0123] In the above embodiments, when the processing circuit determines that there is adjacent-channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band, and that the first radio frequency circuit and the second radio frequency circuit do not reuse the same antenna component, it can determine the type of interference between the two radio frequency signals. Based on the interference type, it can feed back and control the operating parameters (e.g., transmit parameters or receive parameters) of the first radio frequency front-end module and the second radio frequency front-end module. It can also further adjust the matching parameters of the target antenna component to enhance the isolation between the two antenna components. Compared with related technologies, which only avoid interference by reducing the transmit power, this application can also increase the received power of the interfered signal and adjust the matching parameters of the target antenna component, etc., through a multi-dimensional, fully closed-loop system adjustment method, which can further effectively reduce the mutual interference of the coexisting first radio frequency signal and the second radio frequency signal.

[0124] In an exemplary embodiment, the second radio frequency circuit includes at least two second transceiver links. When each second transceiver link is connected to an antenna component, the coexistence communication method further includes: acquiring a target interference link and the interference type of the target interference link, and adjusting the operating parameters of the first radio frequency circuit and the target interference link according to the interference type of the target interference link; wherein, the target interference link is the link with the least adjacent-channel interference to the first transceiver link of the first radio frequency circuit.

[0125] In this embodiment, the radio frequency system can support the transmission and reception of multiple second radio frequency signals. Its processing circuitry can determine that there is a target interference link with minimal adjacent-channel interference in the first transceiver link of the first radio frequency circuit in the second radio frequency front-end module, as well as the interference type of the target interference link. Based on the interference type, the transmission power of the interference signal can be reduced and the reception power of the interfered signal can be increased. In this way, the transmission and reception of the second radio frequency signal can be realized by using the target interference link, which can reduce the impact on the first radio frequency signal and the second radio frequency signal. Under the premise of minimizing the impact on the first radio frequency signal and the second radio frequency signal, the mutual interference of the first radio frequency signal and the second radio frequency signal (e.g., Wi-Fi communication and cellular communication) when they coexist can be effectively reduced, and the communication performance of the radio frequency system supporting the first radio frequency signal and the second radio frequency signal can be improved.

[0126] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0127] In one exemplary embodiment, this application also provides a communication device including the radio frequency system of any of the above embodiments.

[0128] In one exemplary embodiment, a communication device is provided, which may be a terminal, and its internal structure diagram may be as follows. Figure 9As shown, the computer device includes a processor, memory, input / output interfaces, a communication interface, a display unit, and an input device. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interfaces. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a coexistence communication method. The display unit is used to form a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0129] Those skilled in the art will understand that Figure 9 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0130] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0131] The first coupling signal output by the first radio frequency circuit and the second coupling signal output by the second radio frequency circuit are respectively acquired; wherein, the first radio frequency circuit is used to support the first frequency band and the second radio frequency circuit supports the second frequency band.

[0132] In the event of adjacent-channel interference between a first radio frequency signal in the first frequency band and a second radio frequency signal in the second frequency band, the transmission power of the interfering signal is reduced and the reception power of the interfered signal is increased according to the type of interference. The type of interference is determined according to a first coupling signal and a second coupling signal. The interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

[0133] The specific steps in the above coexistence communication method can be found in the processing circuit of the aforementioned radio frequency system, and will not be repeated here. The above processing circuit can be embedded in the radio frequency chip or processor in the communication device in hardware form, or it can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of the above modules.

[0134] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0135] The first coupling signal output by the first radio frequency circuit and the second coupling signal output by the second radio frequency circuit are respectively acquired; wherein, the first radio frequency circuit is used to support the first frequency band and the second radio frequency circuit supports the second frequency band.

[0136] In the event of adjacent-channel interference between a first radio frequency signal in the first frequency band and a second radio frequency signal in the second frequency band, the transmission power of the interfering signal is reduced and the reception power of the interfered signal is increased according to the type of interference. The type of interference is determined according to a first coupling signal and a second coupling signal. The interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

[0137] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0138] The first coupling signal output by the first radio frequency circuit and the second coupling signal output by the second radio frequency circuit are respectively acquired; wherein, the first radio frequency circuit is used to support the first frequency band and the second radio frequency circuit supports the second frequency band.

[0139] In the event of adjacent-channel interference between a first radio frequency signal in the first frequency band and a second radio frequency signal in the second frequency band, the transmission power of the interfering signal is reduced and the reception power of the interfered signal is increased according to the type of interference. The type of interference is determined according to a first coupling signal and a second coupling signal. The interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

[0140] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0141] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0142] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A radio frequency system, characterized in that, include: The first radio frequency circuit is used to operate in the first frequency band and to power couple the received signal to output a first coupling signal; The second radio frequency circuit is used to operate in the second frequency band and to power couple the received signal to output a second coupled signal; The processing circuit, connected to the first radio frequency circuit and the second radio frequency circuit respectively, is used to reduce the transmission power of the interfering signal and increase the receiving power of the interfered signal according to the interference type when there is adjacent channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band. The interference type is determined according to the first coupling signal and the second coupling signal, the interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

2. The radio frequency system according to claim 1, characterized in that, The processing circuit includes: A power detection module is connected to the first radio frequency circuit and the second radio frequency circuit respectively, and is used to obtain the first power corresponding to the first coupling signal and the second power corresponding to the second coupling signal. The processing module is connected to the power detection module, the first radio frequency circuit, and the second radio frequency circuit, respectively. It is used to determine the interference type based on the first power and the second power, and to output a first adjustment signal and a second adjustment signal based on the interference type. The first adjustment signal is used to reduce the transmission power of the interference signal, and the second adjustment signal is used to increase the reception power of the interfered signal. The interference type includes a first type where the first radio frequency signal interferes with the second radio frequency signal, and a second type where the second radio frequency signal interferes with the first radio frequency signal.

3. The radio frequency system according to claim 2, characterized in that, The processing module is also used for: If the absolute value of the difference between the first power and the first reference power is greater than or equal to a first threshold, and the absolute value of the difference between the second power and the second reference power is less than a second threshold, then the interference type is determined to be the second type; or, If the absolute value of the difference between the first power and the first reference power is less than the first threshold, and the absolute value of the difference between the second power and the second reference power is greater than or equal to the second threshold, the interference type is determined to be the first type.

4. The radio frequency system according to claim 2, characterized in that, The processing module is also used for: If the absolute value of the difference between the first power and the second power is greater than or equal to a third threshold, the interference type is determined to be the first type; or, If the absolute value of the difference between the first power and the second power is less than the third threshold, the interference type is determined to be the second type.

5. The radio frequency system according to claim 2, characterized in that, The processing module is also used for: When the interference type is the first type, the first adjustment signal is output to the first radio frequency circuit to reduce the power amplification gain coefficient of the transmit link of the first radio frequency circuit, and the second adjustment signal is output to the second radio frequency circuit to increase the low noise amplification gain coefficient of the receive link of the second radio frequency circuit; or, When the interference type is the second type, the second adjustment signal is output to the first radio frequency circuit to increase the low noise amplification gain coefficient of the receiving link of the first radio frequency circuit, and the first adjustment signal is output to the second radio frequency circuit to decrease the power amplification gain coefficient of the transmitting link of the second radio frequency circuit.

6. The radio frequency system according to claim 2, characterized in that, The processing module includes: The processing unit, connected to the power detection module, is used to determine the interference type based on the first power and the second power, and to output a first digital signal and a second digital signal based on the interference type. The conversion unit is connected to the processing unit, the first radio frequency circuit, and the second radio frequency circuit, respectively, and is used to convert the first digital signal into a first adjustment signal and convert the second digital signal into a second adjustment signal, wherein both the first adjustment signal and the second adjustment signal are MIPI signals.

7. The radio frequency system according to claim 2, characterized in that, The power detection module includes: The detector is connected to the first radio frequency circuit and the second radio frequency circuit respectively; A low-noise amplifier is connected to the detector and the processing module, respectively.

8. The radio frequency system according to claim 1, characterized in that, The first radio frequency circuit includes: A first communication module is used to provide the first radio frequency signal; The first radio frequency front-end module is connected to the first communication module and is used to support the transmission and reception of the first radio frequency signal, as well as the power coupling of the received signal to output the first coupled signal. The second radio frequency circuit includes: The second communication module is used to provide the second radio frequency signal; The second radio frequency front-end module is connected to the second communication module and is used to support the transmission and reception of the second radio frequency signal, as well as the power coupling of the received signal to output the second coupling signal. The processing circuit is connected to the first RF front-end module and the second RF front-end module, respectively.

9. The radio frequency system according to claim 8, characterized in that, The processing circuit is also connected to the first communication module and the second communication module respectively, and the processing circuit is further used for: If both the first control signal output by the first communication module and the second control signal output by the second communication module are received simultaneously, it is determined that the adjacent channel interference exists; wherein... The first radio frequency front-end module operates in response to the first control signal output by the first communication module; The second radio frequency front-end module operates in response to the second control signal output by the second communication module.

10. The radio frequency system according to claim 8, characterized in that, The radio frequency system also includes: The first antenna assembly is connected to the first radio frequency front-end module; The second antenna assembly is connected to the second radio frequency front-end module; The processing circuit is also connected to the first antenna assembly and the second antenna assembly respectively. The processing circuit is also used to adjust the matching parameters of the target antenna assembly to increase the isolation between the first antenna assembly and the second antenna assembly when there is adjacent channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band. The target antenna assembly includes at least one of the first antenna assembly and the second antenna assembly.

11. The radio frequency system according to claim 8, characterized in that, The radio frequency system also includes: A combiner, wherein the two input terminals of the combiner are respectively connected to the first RF front-end module and the second RF front-end module; The third antenna assembly is connected to the output of the combiner.

12. The radio frequency system according to claim 1, characterized in that, The second radio frequency circuit includes at least two second transceiver links, each of which is used to connect to an antenna assembly; wherein, The processing circuit is used to acquire the target interference link and the interference type of the target interference link, and to adjust the operating parameters of the first radio frequency circuit and the target interference link according to the interference type of the target interference link; wherein, The target interference link is the link with the least adjacent-channel interference to the first transceiver link of the first radio frequency circuit.

13. The radio frequency system according to claim 1, characterized in that, The first radio frequency signal is a Wi-Fi signal, and the second radio frequency signal is a cellular signal, or the first radio frequency signal is a Bluetooth signal and the second radio frequency signal is a cellular signal.

14. The radio frequency system according to claim 13, characterized in that, The first frequency band is the Wi-Fi 5G band, and the second frequency band is the N79 band; or The first frequency band is the Wi-Fi 2.4G band, and the second frequency band is either the B40 band or the B41 band; or, The first frequency band is the Wi-Fi 2.4G band, and the second frequency band is either the N40 band or the N41 band; or, The first frequency band is the Wi-Fi 2.4G band, and the second frequency band is the N77 band.

15. A coexistence communication method, characterized in that, include: The first coupling signal output by the first radio frequency circuit and the second coupling signal output by the second radio frequency circuit are respectively acquired; wherein, the first radio frequency circuit is used to support the first frequency band and the second radio frequency circuit supports the second frequency band. In the event of adjacent-channel interference between a first radio frequency signal in the first frequency band and a second radio frequency signal in the second frequency band, the transmission power of the interfering signal is reduced and the reception power of the interfered signal is increased according to the type of interference. The type of interference is determined based on the first coupling signal and the second coupling signal. The interfering signal is one of the first radio frequency signal and the second radio frequency signal, and the interfered signal is the other of the first radio frequency signal and the second radio frequency signal.

16. The method according to claim 15, characterized in that, The method further includes: The first power corresponding to the first coupling signal and the second power corresponding to the second coupling signal are obtained respectively. The interference type is determined based on the first power and the second power; wherein the interference type includes a first type where the first radio frequency signal interferes with the second radio frequency signal, and a second type where the second radio frequency signal interferes with the first radio frequency signal.

17. The method according to claim 16, characterized in that, The method further includes: If the absolute value of the difference between the first power and the first reference power is greater than or equal to a first threshold, and the absolute value of the difference between the second power and the second reference power is less than a second threshold, then the interference type is determined to be the second type; or, If the absolute value of the difference between the first power and the first reference power is less than the first threshold, and the absolute value of the difference between the second power and the second reference power is greater than or equal to the second threshold, then the interference type is determined to be the first type, or... If the absolute value of the difference between the first power and the second power is greater than or equal to a third threshold, the interference type is determined to be the first type; or, If the absolute value of the difference between the first power and the second power is less than the third threshold, the interference type is determined to be the second type.

18. The method according to claim 16, characterized in that, The method of reducing the transmission power of the interfering signal and increasing the reception power of the interfering signal according to the type of interference includes: When the interference type is the first type, a first adjustment signal is output to the first radio frequency circuit to reduce the power amplification gain coefficient of the transmit link of the first radio frequency circuit, and a second adjustment signal is output to the second radio frequency circuit to increase the low noise amplification gain coefficient of the receive link of the second radio frequency circuit; or, When the interference type is the second type, the second adjustment signal is output to the first radio frequency circuit to increase the low noise amplification gain coefficient of the receiving link of the first radio frequency circuit, and the first adjustment signal is output to the second radio frequency circuit to decrease the power amplification gain coefficient of the transmitting link of the second radio frequency circuit.

19. The method according to claim 16, characterized in that, The first radio frequency circuit is connected to the first antenna assembly, and the second radio frequency circuit is connected to the second antenna assembly. The method further includes: In the event of adjacent-channel interference between the first radio frequency signal in the first frequency band and the second radio frequency signal in the second frequency band, the matching parameters of the target antenna assembly are adjusted to increase the isolation between the first antenna assembly and the second antenna assembly.

20. The method according to claim 16, characterized in that, The second radio frequency circuit includes at least two second transceiver links, each second transceiver link being connected to an antenna component; wherein, the method further includes: Obtain the target interference link and the interference type of the target interference link; The operating parameters of the first radio frequency circuit and the target interference link are adjusted according to the interference type of the target interference link; wherein, the target interference link is the link with the least adjacent channel interference to the first transceiver link of the first radio frequency circuit.

21. A communication device, characterized in that, Including the radio frequency system as described in any one of claims 1-14.

22. A communication device, characterized in that, The method includes a memory and a processor, the memory storing a computer program, characterized in that the processor executes the computer program to implement the steps of the method according to any one of claims 15 to 20.

23. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 15 to 20.

24. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 15 to 20.

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