Radio frequency systems and their control methods, wireless communication equipment

Abstract

This application discloses a radio frequency (RF) system and its control method, as well as a wireless communication device. The RF system includes: an RF transceiver for providing a first RF signal in a time-division duplex frequency band; and an RF front-end component including: a first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path; when the target transmission power of the first RF signal is greater than a first power threshold, the first RF signal amplified by the first power amplifier is transmitted through the first transmission path; when the target transmission power is less than or equal to the first power threshold, the first RF signal is transmitted through the second transmission path.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and more specifically, to a radio frequency system and its control method, and a wireless communication device. Background Technology

[0002] With the development of communication technology, people have increasingly higher demands for radio frequency communication quality. In order to ensure communication quality, in the transmission scenario of time division duplex (TDD) band signals, a power amplifier (PA) is usually configured in the radio frequency transmission path, which consumes a lot of power. Summary of the Invention

[0003] This application provides a radio frequency system and its control method, as well as a wireless communication device. The various aspects involved in this application's embodiments are described below.

[0004] In a first aspect, a radio frequency (RF) system is provided, comprising: an RF transceiver for providing a first RF signal in a time-division duplex frequency band; and an RF front-end assembly including: a first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path; when the target transmission power of the first RF signal is greater than a first power threshold, the first RF signal amplified by the first power amplifier is transmitted through the first transmission path; when the target transmission power is less than or equal to the first power threshold, the first RF signal is transmitted through the second transmission path.

[0005] In a second aspect, a wireless communication device is provided, comprising: a baseband system for generating a baseband signal; and a radio frequency system as described in the first aspect for generating a first radio frequency signal based on the baseband signal.

[0006] Thirdly, a control method for a radio frequency (RF) system is provided, the RF system comprising: an RF transceiver for providing a first RF signal in a time-division duplex frequency band; and an RF front-end component comprising: a first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path; the method comprising: transmitting the first RF signal amplified by the first power amplifier through the first transmission path when the target transmission power of the first RF signal is greater than a first power threshold; and transmitting the first RF signal through the second transmission path when the target transmission power is less than or equal to the first power threshold.

[0007] Fourthly, a computer-readable storage medium is provided having executable code stored thereon, which, when executed, enables the implementation of the method described in the third aspect.

[0008] This application provides a radio frequency (RF) system, including: an RF transceiver for providing a first RF signal in a time-division duplex frequency band; and an RF front-end component including: a first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path. When the target transmission power of the first RF signal is greater than a first power threshold, the first RF signal amplified by the first power amplifier is transmitted through the first transmission path; when the target transmission power is less than or equal to the first power threshold, the first RF signal is transmitted through the second transmission path. In other words, when the target transmission power of the first RF signal is less than or equal to the first power threshold (at which point no power amplification is required to meet user needs), this application uses a low-power channel (the second transmission path, which does not include a power amplifier) ​​to transmit the first RF signal, avoiding the power consumption of the first power amplifier (i.e., the current consumption of the first power amplifier), thereby helping to reduce the power consumption of the wireless communication device and improve battery life. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the Phase7 radio frequency system provided in one embodiment of this application.

[0010] Figure 2 This is a schematic diagram of the Phase7 lite radio frequency system provided in one embodiment of this application.

[0011] Figure 3 This is a schematic diagram of the Phase7 LE radio frequency system provided in one embodiment of this application.

[0012] Figure 4 This is a schematic diagram of the structure of a radio frequency system provided in an embodiment of this application.

[0013] Figure 5 This is a schematic diagram of the structure of a radio frequency system provided in another embodiment of this application.

[0014] Figure 6 yes Figure 5 Another schematic diagram of the radio frequency system is shown in the figure.

[0015] Figure 7 yes Figure 6 Another schematic diagram of the radio frequency system is shown in the figure.

[0016] Figure 8 This is a schematic diagram of the power consumption difference between the first and second transmission paths provided in an embodiment of this application.

[0017] Figure 9This is a schematic diagram of the power loss curve of the first radio frequency signal in the third transmission path provided in an embodiment of this application.

[0018] Figure 10 This is a flowchart illustrating a control method for a radio frequency system provided in an embodiment of this application.

[0019] Figure 11 This is a schematic diagram of the structure of a wireless communication device provided in an embodiment of this application. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0021] With the development of communication networks, from the initial 2G network that only supported voice calls to the current 5G network that supports high-speed data traffic, mobile communication is providing convenience for people's daily lives. However, with the increase in communication network standards, terminal devices must support the communication requirements of various network standards such as 2G, 3G, 4G, and 5G. Due to the size constraints of terminal devices, the space of the motherboard has not increased significantly with the increase in demand, which will lead to a very tight space layout and wiring on the motherboard.

[0022] To meet the increasing demands of various network standards while addressing deployment constraints, the high integration and miniaturization of radio frequency (RF) systems in terminal devices have become a clear development trend. From the initial second-generation (Phase 2) RF front-end components supporting only a single frequency band to the seventh-generation (Phase 7) RF front-end components supporting integration across multiple standards, the integration level of RF front-end components has increased significantly, while their package size has also decreased. The following explanation uses the seventh-generation RF front-end component as an example.

[0023] The seventh-generation RF front-end components include three RF system solutions: Phase7, Phase7 lite, and Phase7LE. Figure 1 This is a schematic diagram of the Phase7 RF system architecture. Figure 1 As shown, the radio frequency system includes a radio frequency transceiver 110, a low noise amplifier module 120, a radio frequency front-end assembly 130, a switching device 140, and an antenna unit 150.

[0024] The radio frequency transceiver 110 can support the transmission or reception of wireless radio frequency signals of various standards. These various communication standards may include, for example, 2G signals, 3G signals, 4G signals, and 5G signals.

[0025] The low noise amplifier module 120 includes low noise amplifiers (LNAs) for low frequency (LB) and medium-high frequency (MHB) frequencies. The low noise amplifier module 120 can amplify the signals of the above-mentioned communication standards.

[0026] The radio frequency front-end component 130 can be referred to as a radio frequency front-end integrated module (PA Mid). The radio frequency front-end component 130 may include a low-frequency radio frequency front-end component 131 and a mid-to-high frequency radio frequency front-end component 132. The radio frequency front-end component 130 can process signals from the aforementioned various communication standards (e.g., power amplification, filtering, etc.). The low-frequency radio frequency front-end component 131 and the mid-to-high frequency radio frequency front-end component 132 may include, but are not limited to, switching devices, power amplifiers (PAs), impedance adjustment devices, duplexers, etc., and can be integrated chips of the aforementioned devices.

[0027] Switching device 140 may include switching device 141 and switching device 142, which may be connected to multiple antennas in antenna unit 150, respectively.

[0028] Figure 2 This is a schematic diagram of the Phase7 lite RF system architecture. Figure 2 As shown, the radio frequency system includes a radio frequency transceiver 110, a radio frequency front-end assembly 230, a switching device 140, and an antenna unit 150. See also... Figure 1 and Figure 2 As can be seen, the main difference between the Phase7 lite RF system and the Phase7 RF system is that the RF front-end component 230 in the Phase7 lite RF system integrates a low-noise amplifier module 120, and the RF front-end component 230 includes a low-frequency RF front-end component 231 and a mid-to-high frequency RF front-end component 232.

[0029] Figure 3 This is a schematic diagram of the Phase7 LE RF system architecture. Figure 3 As shown, the radio frequency system includes a radio frequency transceiver 110, a radio frequency front-end assembly 330, and an antenna unit 150. See also... Figure 1 and Figure 3 As can be seen, the main difference between the Phase7 LE RF system and the Phase7 RF system is that the RF front-end component 330 in the Phase7 LE RF system integrates a low-noise amplifier module 120 and a switching device 140. The RF front-end component 330 includes a low-frequency RF front-end component 331 and a mid-to-high-frequency RF front-end component 332.

[0030] It should be noted that, for ease of understanding, the above text mainly focuses on the development needs and history of RF front-end components in providing a detailed introduction to RF systems. The RF front-end components involved in the embodiments of this application can be any type of RF front-end component mentioned above.

[0031] With the development of communication technology, people have increasingly higher demands for radio frequency (RF) communication quality. To ensure communication quality, power amplifiers (PAs) are typically configured in the RF transmission path; however, PAs consume a significant amount of power. The following section will discuss... Figure 4 Table 1 breaks down the power consumption of the RF system.

[0032] Figure 4 This is a schematic diagram of a radio frequency system provided in an embodiment of this application. Figure 4 As shown, the radio frequency system includes a radio frequency transceiver 410, a main transmitter module 420, and a diversity receiver module 430.

[0033] The radio frequency transceiver 410 can support the transmission or reception of various wireless radio frequency signals. These various communication standards may include, for example, 2G, 3G, 4G, and 5G signals.

[0034] The main transmitter module 420 can be used to perform signal processing (e.g., power amplification, filtering) on ​​radio frequency signals of different standards. The main transmitter module 420 may include a power amplifier, a low-noise power amplifier, switching devices, filters, etc. The diversity receiver module 430 can be used to perform power amplification on the received radio frequency signals. The diversity receiver module 430 may include a low-noise power amplifier, switching devices, etc.

[0035] It should be understood that for an RF link, the main source of power consumption is also in the transmitting section. And as a key component of the RF transmitting circuit, the power amplifier's power consumption is also a major factor. The following section will discuss this further. Figure 4 The main transmitter module 420 in the middle breaks down the power consumption of the B41 and N41 frequency band transmitter links at different power levels, as shown in Table 1 below.

[0036] Table 1

[0037]

[0038] It should be noted that the current in the transmit link of an RF system is directly proportional to the power consumption of the transmit link. As shown in Table 1, when an RF signal originating at 2593MHz passes through the transmit link, the power amplifier (PA) accounts for more than 50% of the transmit link's power consumption. The higher the power level, the more significant the PA's transmit current consumption becomes; for example, at 5dBm power, the PA consumes nearly 50mA of current. The transmit link power consumption under PA_OFF state is mainly due to the power consumption of internal switching devices and filters. The target output power of the RF signal in the transmit link can refer to the target output power of the RF signal at the RF front-end components, which is the RF signal output power required by the user.

[0039] To address the aforementioned problems, the inventors conducted a systematic analysis, research, and testing of the various components in the radio frequency system, and proposed a solution based on this analysis.

[0040] Research has shown that RF transceivers can output RF signals within 5dBm. If power consumption on the transmit link can be reduced, the RF signal output by the RF transceiver can meet the power transmission requirements in low-gain scenarios without the need for a power amplifier. Furthermore, activating a power amplifier in the transmit link increases power consumption. Generally, RF front-end components can include multiple RF paths, some of which lack power amplifiers or duplexers, resulting in lower power consumption on the transmit link. Therefore, in low-gain scenarios, a lower-power RF transmit path can be selected to transmit the RF signal. However, considering that RF signals in the frequency division duplex (FDD) band exist for both transmission and reception simultaneously, if only a lower-power transmit path is selected for transmission while the original RF path receives the RF signal, it will lead to asynchrony between transmission and reception, affecting user experience. In other words, the embodiments of this application mainly improve RF transmission in the TDD band. The embodiments of this application are based on the above findings and analyses, which are not prior art but should be considered part of this application's contribution to the prior art.

[0041] Since power amplifiers in the RF transmission path are unnecessary in low-gain scenarios, selecting a low-power RF transmission path (an RF transmission path excluding power amplifiers) in such scenarios can reduce the power consumption of wireless communication devices. Based on this, this application first proposes an RF system different from related technologies, which allows selection of a normal RF transmission path (i.e., a high-power transmission path) or a low-power transmission path as needed. The RF system proposed in this application will be described in detail below.

[0042] Figure 5 A schematic diagram of a radio frequency system provided in an embodiment of this application. See also... Figure 5 The radio frequency system 500 provided in this application embodiment includes: a radio frequency transceiver 510, a radio frequency front-end component 520, and an antenna unit 530.

[0043] The radio frequency transceiver 510 can support the transmission or reception of wireless radio frequency signals of various standards. These various communication standards may include, for example, 2G, 3G, 4G, and 5G signals. The radio frequency transceiver 510 can be used to provide a first radio frequency signal in a time-division duplex frequency band. This time-division duplex frequency band may be, for example, the N40 band, the N41 band, etc., and this application does not impose specific limitations on it. This application embodiment does not impose specific limitations on the communication standard of the first radio frequency signal; the first radio frequency signal may be, for example, a 4G radio frequency signal or a 5G radio frequency signal.

[0044] The radio frequency front-end component 520 can be referred to as a radio frequency front-end module. The radio frequency front-end component 520 may include a first transmission path 501, a second transmission path 502, and a first power amplifier 523. The first power amplifier 523 is disposed on the first transmission path 501. When the target transmission power of the first radio frequency signal is greater than the first power threshold, the first radio frequency signal after being amplified by the first power amplifier 523 is transmitted through the first transmission path 501. When the target transmission power is less than or equal to the first power threshold, the first radio frequency signal is transmitted through the second transmission path 502.

[0045] See Figure 6 In some embodiments, the radio frequency system 500 further includes a first switching device 540. One end of the first switching device 540 is communicatively connected to the radio frequency transceiver 510, and the other end of the first switching device 540 is communicatively connected to the radio frequency front-end assembly 520. When the target transmit power of the first radio frequency signal is greater than a first power threshold, the first switching device 540 is controlled to connect to the first transmit path 501, and the first radio frequency signal amplified by the first power amplifier 523 is transmitted through the first transmit path 501. When the target transmit power is less than or equal to the first power threshold, the first switching device 540 is controlled to connect to the second transmit path 502, and the first radio frequency signal is transmitted through the second transmit path 502.

[0046] In some embodiments, the radio frequency front-end assembly 520 may include a first transmit port 521, a second transmit port 522, a first power amplifier 523, and an antenna port 524, wherein the antenna port 524 may be connected to the antenna element 530. The first transmit port 521 is connected to one end of the first power amplifier 523, and the other end of the first power amplifier 523 is connected to the antenna port 524 to form a first transmit path 501. The first transmit path 501 can be used to transmit a first radio frequency signal, and the first power amplifier 523 can be used to amplify the power of the first transmitted signal. The second transmit port 522 is connected to the antenna port 524 to form a second transmit path 502. The second transmit path 502 does not include a power amplifier for amplifying the power of the first radio frequency signal.

[0047] The first switching device 540 includes a first port (port 1), a second port (port 2), and a third port (port 3). The first port is connected to the radio frequency transceiver 510, the second port is connected to the first transmitting port 521, and the third port is connected to the second transmitting port 522. The first switching device 540 can be a single-pole multi-throw switch, such as a single-pole double-throw switch or a single-pole triple-throw switch. The type of the first switching device 540 can be configured according to requirements.

[0048] In this embodiment, when the target transmission power of the first radio frequency (RF) signal is greater than a first power threshold, the first port and the second port are connected, and the first RF signal amplified by the first power amplifier 523 is transmitted through the first transmission path 501. When the target transmission power is less than or equal to the first power threshold, the first port and the third port are connected, and the first RF signal is transmitted through the second transmission path 502. It should be noted that the target transmission power of the first RF signal is the user-required output power of the output port of the RF front-end component 520. Depending on the application scenario, the user can pre-set this target transmission power. The maximum set value of the first power threshold can be the difference between the power value of the first RF signal provided by the RF transceiver 510 and the power loss value of the first RF signal after passing through the second transmission path 502. That is, the first power threshold is less than or equal to the difference between the power value of the first RF signal and the power loss value of the first RF signal in the second transmission path 502. In other words, when the target transmission power is less than or equal to the first power threshold, there is no need for the first power amplifier 523 to amplify the power; the power transmission requirement can be met through the second transmission path 502. The user can set the first power threshold according to their needs. It should be understood that when the transmit power of the RF transceiver 510 changes or the power loss on the second transmit path 502 changes, the maximum setting value of the first power threshold will also change accordingly.

[0049] As an example, if the transmit power of the first radio frequency signal provided by the radio frequency transceiver 510 is 5dBm, and the power loss of the first radio frequency signal through the second transmit path 502 is less than 2dBm, then the first power threshold can be set to 3dBm. When the target transmit power of the first radio frequency signal is greater than the first power threshold (3dBm), the first radio frequency signal amplified by the first power amplifier 523 can be transmitted through the first transmit path 501; when the target transmit power of the first radio frequency signal is less than or equal to the first power threshold (3dBm), no power amplification is required to meet the user's needs, and the first radio frequency signal can be transmitted through the second transmit path 502. In this embodiment, by connecting the second transmit path 502 (low-power path), the first radio frequency signal provided by the radio frequency transceiver 510 can be directly transmitted to the antenna port 524, avoiding the power consumption of the first power amplifier 523 (i.e., the current consumption power of the first power amplifier 523), thereby helping to reduce the power consumption of the wireless communication device and improve its battery life.

[0050] In some embodiments, in the EUTRA NR dual-connectivity (ENDC) scenario, the dual transmission function of 4G and 5G signals can be realized through the first transmission path 501 and the second transmission path 502.

[0051] See also Figure 6 The RF front-end assembly 520 may further include a second switching device 525 and a filter 526. A first common transmission path 504 exists between the first transmission path 501 and the second transmission path 502. The second switching device 525 and the filter 526 are disposed on the first common transmission path 504. One end of the second switching device 525 is communicatively connected to a first power amplifier, and the other end of the second switching device 525 is communicatively connected to one end of the filter 526. The other end of the filter 526 is communicatively connected to the antenna unit 530 of the RF system. The filter 526 is used to filter the first RF signal. When the target transmission power is greater than a first power threshold, the second switching device 525 is controlled to connect to the first transmission path 501; when the target transmission power is less than or equal to the first power threshold, the second switching device 525 is controlled to connect to the second transmission path 502.

[0052] In some embodiments, the second switching device 525 includes a fifth port (port 5), a sixth port (port 6), and a seventh port (port 7). The fifth port is connected to the other end of the first power amplifier 523, and the sixth port is connected to the second transmit port 522. One end of the filter 526 is connected to the seventh port, and the other end of the filter 526 is connected to the antenna port 524. The filter 526 is used to filter the first radio frequency signal. The filter 526 can be a surface acoustic wave (SAW) filter.

[0053] In some embodiments, when the target transmit power is greater than the first power threshold, the fifth port is connected to the seventh port, and when the target transmit power is less than or equal to the first power threshold, the sixth port is connected to the seventh port.

[0054] See also Figure 6 The RF front-end assembly 520 also includes a third transmit path 503. The first transmit path 501, the second transmit path 502, and the third transmit path 503 share a second common transmit path 505. The RF front-end assembly 520 also includes a third switch device 528, which is disposed on the second common transmit path 505. One end of the third switch device 528 is communicatively connected to the other end of the filter 526, and the other end of the third switch device 528 is communicatively connected to the antenna unit 530 of the RF system. When the target transmit power is less than or equal to a first power threshold or when the target transmit power is greater than a second power threshold, the third switch device 528 is controlled to connect to the first common transmit path 504. When the target transmit power is greater than the first power threshold and less than or equal to the second power threshold, the third switch device 528 is controlled to connect to the third transmit path 503.

[0055] In other words, when the target transmission power is greater than the second power threshold, the second switch device 525 and the third switch device 528 are controlled to connect the first transmission path 501, and the first radio frequency signal amplified by the first power amplifier 523 is transmitted through the first transmission path 501; when the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold, the third switch device 528 is controlled to connect the third transmission path 503, and the first radio frequency signal is transmitted through the third transmission path 503; when the target transmission power is less than or equal to the first power threshold, the second switch device 525 and the third switch device 528 are controlled to connect the second transmission path 502, and the first radio frequency signal filtered by the filter 526 is transmitted through the second transmission path 502; wherein, the first power threshold is less than the second power threshold.

[0056] In some embodiments, the RF front-end assembly 520 further includes a third transmit port 527. The third transmit port 527 is connected to the antenna port 524 to form a third transmit path 503. The first switching device 540 further includes a fourth port (port 4). The fourth port of the first switching device 540 is connected to the third transmit port 527.

[0057] In some embodiments, when the target transmit power is greater than the second power threshold, the first port is connected to the second port, and the first radio frequency signal amplified by the first power amplifier 523 is transmitted through the first transmit path 501; when the target transmit power is less than or equal to the second power threshold, the first port is connected to the fourth port, and the first radio frequency signal is transmitted through the third transmit path 503; wherein the first power threshold is less than the second power threshold. It should be understood that the third transmit path 503 can directly transmit the first radio frequency signal provided by the radio frequency transceiver 510 to the antenna port 524, avoiding the power consumption of the first power amplifier 523, the second switching device 525, and the filter 526 in the first transmit path 501 (i.e., the current consumption of the first power amplifier 523, the current consumption of the second switching device 525, and the current consumption of the filter 526). At the same time, it can also avoid the power consumption of the second switching device 525 and the filter 526 in the second transmit path 502 (i.e., the current consumption of the second switching device 525 and the current consumption of the filter 526), ​​thereby minimizing the power consumption of the wireless communication device. Since the power loss of the first radio frequency signal in the third transmission path 503 is less than the power loss of the first radio frequency signal in the second transmission path 502, the second power threshold can be configured to be higher than the first power threshold. This allows the first radio frequency signal with a higher target transmission power to avoid the power consumption of the first power amplifier 523, thereby achieving a more energy-efficient purpose.

[0058] The maximum set value of the second power threshold can be the difference between the power value of the first radio frequency signal provided by the radio frequency transceiver 510 and the power loss value of the first radio frequency signal after passing through the third transmission path 503. That is, the second power threshold is less than or equal to the difference between the power value of the first radio frequency signal and the power loss value of the first radio frequency signal in the third transmission path 503. In other words, when the target transmission power is less than or equal to the second power threshold, there is no need for the first power amplifier 523 to perform power amplification processing, and the power requirement can be met by the third transmission path 503. The user can set the second power threshold according to their needs. It should be understood that when the transmission power of the radio frequency transceiver 510 changes or the power loss on the third transmission path 503 changes, the maximum set value of the second power threshold will also change accordingly.

[0059] As an example, if the transmit power of the first radio frequency signal provided by the radio frequency transceiver 510 is 5dBm, and the power loss of the first radio frequency signal through the third transmit path 503 is less than -1dBm, then the second power threshold can be set to 6dBm. When the target transmit power of the first radio frequency signal is greater than the second power threshold (6dBm), the first radio frequency signal amplified by the first power amplifier 523 can be transmitted through the first transmit path 501; when the target transmit power of the first radio frequency signal is less than or equal to the second power threshold (6dBm), no power amplification is required to meet the user's needs, and the first radio frequency signal can be transmitted through the third transmit path 503. In this embodiment, by connecting the third transmit path 503 (low-power path), the first radio frequency signal provided by the radio frequency transceiver 510 can be directly transmitted to the antenna port 524, avoiding the power consumption of devices such as the first power amplifier 523, the second switching device 525, and the filter 526, thereby minimizing the power consumption of the wireless communication device and improving the user experience.

[0060] Based on the above analysis, it can be seen that when the target transmission power of the first radio frequency signal is less than or equal to the first power threshold, transmitting the first radio frequency signal filtered by filter 526 through the second transmission path 502 can meet the user's needs. Of course, transmitting the first radio frequency signal through the third transmission path 503 can also meet the user's needs. In this case, for the sake of the transmission quality of the first radio frequency signal, when the target transmission power of the first radio frequency signal is less than or equal to the first power threshold, this embodiment of the application can transmit the first radio frequency signal filtered by filter 526 through the second transmission path 502. That is, when the target transmission power is greater than the first power threshold and less than or equal to the second power threshold, the first port and the fourth port are connected, and the first radio frequency signal can be transmitted through the third transmission path 503; when the target transmission power is less than or equal to the first power threshold, the first port and the third port are connected, and the first radio frequency signal filtered by filter 526 can be transmitted through the second transmission path 502.

[0061] In some embodiments, see continue to see Figure 6 The RF front-end assembly 520 also includes a third switching device 528. The third switching device 528 includes an eighth port, a ninth port, and a tenth port. The eighth port is connected to the other end of the filter 526, the ninth port is connected to the third transmit port 527, and the tenth port is connected to the antenna port 524.

[0062] In some embodiments, when the target transmit power is greater than a first power threshold and the target transmit power is less than or equal to a second power threshold, the ninth port and the tenth port are connected; when the target transmit power is less than or equal to the first power threshold, the eighth port and the tenth port are connected, and the sixth port and the seventh port are connected; when the target transmit power is greater than the second power threshold, the eighth port and the tenth port are connected, and the fifth port and the seventh port are connected.

[0063] In some embodiments, the radio frequency front-end component 520 can be a radio frequency front-end transmitter chip, and the first power amplifier 523, the second switching device 525, the filter 526 and the third switching device 528 can be integrated in the radio frequency front-end transmitter chip.

[0064] In some embodiments, the connection between the second port of the first switching device 540 and the first transmitting port 521 is a Mobile Industry Processor Interface (MIPI) protocol connection, and the connection between the third port and the second transmitting port 522 is a MIPI protocol connection.

[0065] To deepen the understanding of the radio frequency system in the embodiments of this application, the following will be combined with... Figure 7 The above-mentioned radio frequency system will be illustrated with more detailed examples.

[0066] See Figure 7 The radio frequency system includes a radio frequency transceiver 710, a radio frequency front-end assembly 720, an antenna unit 730, and a first switching device 740. It should be noted that... Figure 7 The unconnected ports represent connections to the corresponding devices.

[0067] The RF transceiver 710 is the same as the RF transceiver 510 mentioned above, and will not be described in detail here.

[0068] The RF front-end component 720 is a more detailed structure of the RF front-end component 520. The RF front-end component 720 can be an RF front-end transmitter chip, such as the QM77058B. The RF front-end component 720 can include multiple RF transmit ports, multiple receive ports, and multiple devices. The multiple RF transmit ports can include, for example, an intermediate frequency transmit port MB_IN, a high-frequency transmit port HB_IN, a transmit port SRS_IN, a 2G high-frequency transmit port 2G_HB, and transmit ports TRx1 to TRx3. The multiple devices include switching devices, power amplifiers, duplexers, filters, impedance matching circuits, and coupling circuits, etc. It should be noted that, through the high-frequency transmit port HB_IN and the transmit port SRS_IN, the RF system in this embodiment can achieve dual transmission of 4G and 5G signals, i.e., achieve ENDC.

[0069] See also Figure 7 The transmit port MB_IN is connected to one end of the intermediate frequency power amplifier MB PA, and the other end of MB PA is connected to one end of the switching device 701, which can be a single-pole multi-throw switch. RF signals in the intermediate frequency band can be transmitted through the transmit port MB_IN. This intermediate frequency band may include B1, B3, B25, B34, and B39, etc. It should be understood that multiple ports on the other end of the switching device 701 can be connected to corresponding filters. For example, port B1 of the switching device 701 can be connected to a duplexer in the B1 band. If the RF transceiver 710 provides RF signals in a frequency band outside the aforementioned intermediate frequency band, and the RF front-end assembly 720 does not contain a corresponding duplexer or filter, then ports MB_Tx_Out1 and MB_Tx_Out2 can be selected to output to the corresponding duplexer or filter outside the RF front-end assembly 720 for processing, and then transmitted through the transmit ports TRx1 to TRx3.

[0070] The high-frequency transmit port HB_IN can be connected to power amplifier B7 PA (power amplifier for the B7 band) and power amplifier HB PA respectively. Power amplifier B7 PA can be connected to a corresponding filter or duplexer, and power amplifier HB PA is connected to switching device 702. High-frequency radio frequency signals can be transmitted through the transmit port HB_IN. This high-frequency band can include B7, B40, and B41, etc. It should be understood that multiple ports on the other end of switching device 702 can be connected to corresponding filters or duplexers. If the radio frequency transceiver 710 provides radio frequency signals in a frequency band outside the aforementioned high-frequency band, the output of port HB_Tx_Out1 can be selected to be processed by a corresponding duplexer or filter outside the radio frequency front-end assembly 720, and then transmitted through the transmit ports TRx1 to TRx3.

[0071] In some embodiments, if the frequency band of the radio frequency signal provided by the radio frequency transceiver 710 is neither within the aforementioned mid-high frequency band range nor within the aforementioned high frequency band range, then the transmit ports TRx1 to TRx3 can be selected for transmission.

[0072] See also Figure 7The RF front-end assembly 720 also includes duplexers or filters corresponding to frequency bands B1, B3, B25, B34, B39, B7, B40, and B41. The RF front-end assembly 720 also includes an impedance matching circuit 703, switching devices 704 and 705, and a coupling circuit 706. The duplexers or filters in the RF front-end assembly 720 can be connected to the switching device 704 via the impedance matching circuit 703. The output of the switching device 704 is connected to antenna ports ANT1 and ANT2. The impedance matching circuit 703 can be used to tune the impedance of each RF path. A coupling circuit 706 is also included between the antenna ports ANT1 and ANT2 and the switching device 704. The coupling circuit 706 can be used to detect the RF signal output power of the RF front-end assembly 720. The switching device 704 is a double-pole five-throw switch. To expand the ports of the switching device 704, a switching device 705 can be connected in series. The switching device 705 is a single-pole three-throw switch. Among them, the radio frequency transmission ports 2G_HB, TRx2 and TRx3 are connected to the switching device 705 respectively, and the transmission port 2G_HB can be used to transmit signals in the 2G high frequency band.

[0073] In some embodiments, the antenna unit 730 includes two antennas, namely antenna ANT1 and antenna ANT2. Antenna ANT1 and antenna ANT2 are respectively connected to port antenna port ANT1 and antenna port ANT2.

[0074] See also Figure 7 The RF front-end assembly 720 also includes an RF signal receiving loop, which includes low-noise power amplifiers LNA1 to LNA6 and transmits the RF signal to the RF transceiver 710 via a 6×6 MUX six-input six-output switching device. This receiving loop can be used to receive RF signals in the B1, B3, B4, B25, B32, B34, B39, B7, B40, B41, B66, B75, and B76 frequency bands.

[0075] First switching device 740 and Figure 6 The first switching device 540 in the above refers to the same switching device. The first port of the first switching device 740 is connected to the RF transceiver 710, the second port of the first switching device 740 is connected to the transmit port HB_IN, the third port of the first switching device 740 is connected to the transmit port SRS_IN, and the fourth port of the first switching device 740 is connected to the transmit port TRx3. It should be understood that the fourth port of the first switching device 740 can be connected to any one of the transmit ports TRx1 to TRx3.

[0076] When the target transmit power of the first radio frequency signal provided by the radio frequency transceiver 710 is greater than the first power threshold, a high-gain transmit mode is required. That is, the first radio frequency signal is transmitted through the first transmit path (high-power radio frequency transmit path). The signal transmission path is as follows: the radio frequency transceiver 710 outputs the first radio frequency signal, the first port and the second port of the first switching device 740 are connected, and the first radio frequency signal is input through the radio frequency transmit port HB_IN of the radio frequency front-end component 720; the input first radio frequency signal is amplified by the internal HB PA; the first radio frequency signal after amplification by the HB PA is switched to the corresponding filter by the switching device 702 for filtering; the first radio frequency signal after filtering is output to the antenna unit 730 through the ANT port of the switching device 704 (DP5T switch) and the first radio frequency signal is transmitted outward.

[0077] When the target transmit power of the first radio frequency signal provided by the RF transceiver 710 is less than or equal to the first power threshold, a low-gain transmit mode is used. This means the first radio frequency signal is transmitted through the second transmit path (low-power RF transmit path). The signal transmission path is as follows: the RF transceiver 710 outputs the first radio frequency signal; the first port and third port of the first switching device 740 are connected; the first radio frequency signal is input through the RF transmit port SRS_IN of the RF front-end component 720; the input first radio frequency signal is switched to the corresponding filter by the switching device 702 for filtering; the filtered first radio frequency signal is output to the antenna unit 730 through the ANT port of the switching device 704 (DP5T switch) and then transmitted outwards. The condition for using the low-gain transmit mode is whether the target transmit power is less than or equal to the first power threshold. The maximum set value of the first power threshold can be the difference between the power value of the first radio frequency signal provided by the RF transceiver 710 and the power loss value of the first radio frequency signal after passing through the second transmit path. That is, the first power threshold is less than or equal to the difference between the power value of the first radio frequency signal and the power loss value of the first radio frequency signal in the second transmission path.

[0078] To verify the power loss of the first radio frequency signal in the first and second transmission paths, this application embodiment uses the radio frequency signal in the N41 band as an example to simulate the power loss of the first radio frequency signal in the first and second transmission paths. Figure 8 This is a schematic diagram showing the difference between the power loss of the first radio frequency signal in the first transmission path and the power loss of the first radio frequency signal in the second transmission path. For example... Figure 8As shown, the power loss of the first radio frequency signal in the first transmission path and the power loss of the first radio frequency signal in the second transmission path in the N41 band (2.496GHz~2.690GHz) are approximately 4dBm. Specifically, the power loss difference is -4.989dBm at frequency 2.496GHz (i.e., point m1), -4.030dBm at frequency 2.515GHz (i.e., point m3), -4.174dBm at frequency 2.675GHz (i.e., point m4), and -4.697dBm at frequency 2.690GHz (i.e., point m2).

[0079] Through testing, the RF signal transmission power of the RF transceiver is generally 5dBm, and the power loss of the first RF signal in the second transmission path is generally less than 2dBm. That is, when the target transmission power of the first RF signal is less than or equal to 3dBm, the second transmission path can be used to transmit the first RF signal. Referring again to Table 1 above, when the target transmission power in the first transmission path (i.e., the target output power of the RF signal of the RF front-end component 720) is less than 4.9dBm, the first RF signal can be transmitted through the second transmission path. In other words, RF signals with target output power between -20dBm and 0dBm in Table 1 can all be transmitted using the second transmission path. As can be seen from the data in Table 1, wireless communication devices can have a current gain of approximately 14–30mA.

[0080] To further reduce the power consumption of wireless communication devices, in this embodiment, the first radio frequency signal can also be transmitted through a third transmission path in low-gain mode. (See again) Figure 7 When the target transmit power of the first radio frequency signal provided by the radio frequency transceiver 710 is greater than the second power threshold, a high-gain transmit mode is required. That is, the first radio frequency signal is transmitted through the first transmit path (high-power radio frequency transmit path). The signal transmission path is as follows: the radio frequency transceiver 710 outputs the first radio frequency signal, the first port and the second port of the first switching device 740 are connected, and the first radio frequency signal is input through the radio frequency transmit port HB_IN of the radio frequency front-end component 720; the input first radio frequency signal is amplified by the internal HB PA; the first radio frequency signal after amplification by the HB PA is switched to the corresponding filter by the switching device 702 for filtering; the first radio frequency signal after filtering is output to the antenna unit 730 through the ANT port of the switching device 704 (DP5T switch) and the first radio frequency signal is transmitted outward.

[0081] When the target transmit power of the first radio frequency signal provided by the RF transceiver 710 is less than or equal to the second power threshold, a lower gain transmit mode is used, i.e., the first radio frequency signal is transmitted through the third transmit path. The signal transmission path is as follows: the RF transceiver 710 outputs the first radio frequency signal; the first port of the first switching device 740 is connected to the third port; the first radio frequency signal is input through the RF transmit port TRx3 of the RF front-end assembly 720; the input first radio frequency signal is directly output from the ANT port of the switching device 704 (DP5T switch) of the RF front-end assembly 720 to the antenna unit 730, and then transmitted outwards. The condition for using the lower gain transmit mode is whether the target transmit power is less than or equal to the second power threshold. The maximum set value of the second power threshold can be the difference between the power value of the first radio frequency signal provided by the RF transceiver 710 and the power loss value of the first radio frequency signal through the third transmit path. That is, the second power threshold is less than or equal to the difference between the power value of the first radio frequency signal and the power loss value of the first radio frequency signal in the third transmit path.

[0082] To verify the power loss of the first radio frequency signal in the third transmission path, this embodiment of the application uses the radio frequency signal in the N41 band as an example to simulate the power loss of the first radio frequency signal in the third transmission path. Figure 9 This is a schematic diagram showing the power loss curve of the first radio frequency signal in the third transmission path. (Example:) Figure 9 As shown, the power loss of the first radio frequency signal in the N41 band (2.496GHz~2.690GHz) in the first transmission path is approximately -1.09dBm to -1.24dBm. Compared to the power loss of the first radio frequency signal in the N41 band in the second transmission path, the loss can be reduced by about 3dBm. In other words, compared to the scheme where the first radio frequency signal is transmitted in the second transmission path, the output power of the first radio frequency signal transmitted in the third transmission path can be increased by about 3dBm without increasing power consumption, thereby further reducing the power consumption of wireless communication devices.

[0083] This application also provides a wireless communication device, including a baseband system for generating a baseband signal; and any possible radio frequency system as described above for generating a first radio frequency signal based on the baseband signal.

[0084] In some embodiments, the wireless communication device may be a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system (such as an NR system), or a terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0085] In some embodiments, the wireless communication device can be a handheld device, in-vehicle device, etc., with wireless connectivity. As specific examples, the wireless communication device can be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc. This application does not impose specific limitations on this.

[0086] The above text combined Figures 1 to 9 The radio frequency system embodiments of this application have been described in detail below, in conjunction with... Figure 10 The method embodiments of this application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the radio frequency system embodiments; therefore, any parts not described in detail can be referred to the preceding radio frequency system embodiments.

[0087] Figure 10 This is a flowchart illustrating a control method for a radio frequency system provided in an embodiment of this application. The radio frequency system includes: a radio frequency transceiver for providing a first radio frequency signal in a time-division duplex frequency band; and a radio frequency front-end assembly including: a first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path; the method 1000 includes the following steps: S1010 to S1020.

[0088] In step S1010, when the target transmission power of the first radio frequency signal is greater than the first power threshold, the first radio frequency signal after being amplified by the first power amplifier is transmitted through the first transmission path.

[0089] In step S1020, when the target transmission power is less than or equal to the first power threshold, the first radio frequency signal is transmitted through the second transmission path.

[0090] Optionally, the radio frequency front-end component further includes: a first switching device, one end of which is communicatively connected to the radio frequency transceiver, and the other end of which is communicatively connected to the radio frequency front-end component; the method includes: when the target transmit power of the first radio frequency signal is greater than the first power threshold, controlling the first switching device to connect to the first transmit path, and transmitting the first radio frequency signal amplified by the first power amplifier through the first transmit path; when the target transmit power is less than or equal to the first power threshold, controlling the first switching device to connect to the second transmit path, and transmitting the first radio frequency signal through the second transmit path.

[0091] Optionally, the first transmission path and the second transmission path have a first common transmission path. The radio frequency front-end component further includes: a second switching device and a filter, disposed on the first common transmission path. One end of the second switching device is communicatively connected to the first power amplifier, and the other end of the second switching device is communicatively connected to one end of the filter. The other end of the filter is communicatively connected to the antenna unit of the radio frequency system. The filter is used to filter the first radio frequency signal. The method further includes: when the target transmission power is greater than the first power threshold, controlling the second switching device to connect to the first transmission path; when the target transmission power is less than or equal to the first power threshold, controlling the second switching device to connect to the second transmission path.

[0092] Optionally, the radio frequency front-end component further includes a third transmission path; the method includes: when the target transmission power is greater than a second power threshold, controlling the second switching device to connect the first transmission path, and transmitting the first radio frequency signal amplified by the first power amplifier through the first transmission path; when the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold, transmitting the first radio frequency signal through the third transmission path; when the target transmission power is less than or equal to the first power threshold, controlling the second switching device to connect the second transmission path, and transmitting the first radio frequency signal filtered by the filter through the second transmission path; wherein, the first power threshold is less than the second power threshold.

[0093] Optionally, the first transmission path, the second transmission path, and the third transmission path have a second common transmission path. The radio frequency front-end assembly further includes: a third switching device disposed on the second common transmission path, one end of the third switching device being communicatively connected to the other end of the filter, and the other end of the third switching device being communicatively connected to the antenna unit of the radio frequency system. The method further includes: controlling the third switching device to connect to the first common transmission path when the target transmission power is less than or equal to the first power threshold or when the target transmission power is greater than the second power threshold; and controlling the third switching device to connect to the third transmission path when the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold.

[0094] The following is combined with Figure 11 This application describes a wireless communication device 1100 according to an embodiment of the present application. This wireless communication device 1100 can be used to implement the methods described in the above method embodiments.

[0095] It should be understood that wireless communication device 1100 can be applied to any of the types of wireless communication devices mentioned above.

[0096] The wireless communication device 1100 may include one or more processors 1110. The processor 1110 may support the wireless communication device 1100 in implementing the methods described in the preceding method embodiments.

[0097] The processor 1110 can be a general-purpose processor or a special-purpose processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0098] The wireless communication device 1100 may also include one or more memories 1120. The memories 1120 store a program that can be executed by the processor 1110 to control the wireless communication device 1100 to perform the methods described in the preceding method embodiments. The memories 1120 may be independent of the processor 1110 or integrated into the processor 1110.

[0099] The wireless communication device 1100 may also include a radio frequency system 1130. The processor 1110 can communicate with other devices via the radio frequency system 1130. For example, the processor 1110 can transmit and receive data with other devices via the radio frequency system 1130. The radio frequency system 1130 can be any possible radio frequency system described above.

[0100] This application also provides a chip, including a processor, which can be used to call and run a computer program from memory, causing a device equipped with the chip to perform the methods described in the above method embodiments. It is understood that the processor can be any type of processor mentioned above. It is also understood that the memory can be independent of the chip or integrated into the chip.

[0101] This application also provides a machine-readable storage medium for storing a program. This program causes a computer to execute the methods described in the various embodiments of this application.

[0102] This application also provides a computer program product. The computer program product includes a program. The program causes a computer to perform the methods described in various embodiments of this application.

[0103] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any other combination. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a machine-readable storage medium or transmitted from one machine-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The machine-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0104] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments of this disclosure can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0105] In the several embodiments provided in this disclosure, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0106] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0107] In addition, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0108] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A radio frequency system, characterized in that, include: Radio frequency transceivers are used to provide the first radio frequency signal in the time-division duplex frequency band; RF front-end components, including: A first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path; The first transmission path and the second transmission path have a first common transmission path, and the radio frequency front-end component further includes: A second switching device and a filter are disposed on the first common transmission path. One end of the second switching device is communicatively connected to the first power amplifier, and the other end of the second switching device is communicatively connected to one end of the filter. The other end of the filter is communicatively connected to the antenna unit of the radio frequency system. The filter is used to filter the first radio frequency signal. The third transmission path is provided without the first power amplifier and the filter; When the target transmission power of the first radio frequency signal is greater than the second power threshold, the second switching device is controlled to connect the first transmission path, and the first radio frequency signal after being amplified by the first power amplifier is transmitted through the first transmission path. When the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold, the first radio frequency signal is transmitted through the third transmission path; When the target transmission power is less than or equal to the first power threshold, the second switching device is controlled to connect the second transmission path, and the first radio frequency signal after being filtered by the filter is transmitted through the second transmission path. Wherein, the first power The threshold is less than the second power threshold.

2. The radio frequency system according to claim 1, characterized in that, The first transmission path, the second transmission path, and the third transmission path share a second common transmission path, and the radio frequency front-end assembly further includes: A third switching device is disposed on the second common transmission path. One end of the third switching device is communicatively connected to the other end of the filter, and the other end of the third switching device is communicatively connected to the antenna unit of the radio frequency system. When the target transmission power is less than or equal to the first power threshold or when the target transmission power is greater than the second power threshold, the third switching device is controlled to connect the first common transmission path; When the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold, the third switching device is controlled to connect the third transmission path.

3. The radio frequency system according to claim 2, characterized in that, The radio frequency front-end component is a radio frequency front-end transmitter chip, and the first power amplifier, the second switching device, the filter, and the third switching device are integrated in the radio frequency front-end transmitter chip.

4. The radio frequency system according to claim 1, characterized in that, The difference between the power value of the first radio frequency signal provided by the radio frequency transceiver and the power loss value of the first radio frequency signal after passing through the third transmission path is the second power threshold.

5. The radio frequency system according to any one of claims 1-4, characterized in that, The difference between the power value of the first radio frequency signal provided by the radio frequency transceiver and the power loss value of the first radio frequency signal after passing through the second transmission path is the first power threshold.

6. A wireless communication device, characterized in that, include: The baseband system is used to generate baseband signals; The radio frequency system according to any one of claims 1-5 is used to generate a first radio frequency signal based on the baseband signal.

7. A control method for a radio frequency system, characterized in that, The radio frequency system includes: Radio frequency transceivers are used to provide the first radio frequency signal in the time-division duplex frequency band; RF front-end components, including: A first transmission path, a second transmission path, and a first power amplifier, wherein the first power amplifier is disposed on the first transmission path; The first transmission path and the second transmission path have a first common transmission path, and the radio frequency front-end component further includes: A second switching device and a filter are disposed on the first common transmission path. One end of the second switching device is communicatively connected to the first power amplifier, and the other end of the second switching device is communicatively connected to one end of the filter. The other end of the filter is communicatively connected to the antenna unit of the radio frequency system. The filter is used to filter the first radio frequency signal. The third transmission path is provided without the first power amplifier and the filter; The method includes: When the target transmission power of the first radio frequency signal is greater than the second power threshold, the second switching device is controlled to connect the first transmission path, and the first radio frequency signal after being amplified by the first power amplifier is transmitted through the first transmission path. When the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold, the first radio frequency signal is transmitted through the third transmission path; When the target transmission power is less than or equal to the first power threshold, the second switching device is controlled to connect the second transmission path, and the first radio frequency signal after being filtered by the filter is transmitted through the second transmission path. Wherein, the first power threshold is less than the second power threshold.

8. The method according to claim 7, characterized in that, The first transmission path, the second transmission path, and the third transmission path share a second common transmission path, and the radio frequency front-end assembly further includes: A third switching device is disposed on the second common transmission path. One end of the third switching device is communicatively connected to the other end of the filter, and the other end of the third switching device is communicatively connected to the antenna unit of the radio frequency system. The method further includes: When the target transmission power is less than or equal to the first power threshold or when the target transmission power is greater than the second power threshold, the third switching device is controlled to connect the first common transmission path; When the target transmission power is greater than the first power threshold and the target transmission power is less than or equal to the second power threshold, the third switching device is controlled to connect the third transmission path.

9. A computer-readable storage medium having executable code stored thereon, characterized in that, The code is used to implement the method described in claim 7 or 8.

Images