Radio frequency system and communication device

Abstract

The invention relates to a radio frequency system and communication equipment, and relates to the technical field of radio frequency. The radio frequency system comprises a first radio frequency front-end device which is at least provided with a transmitting and receiving port, and a first antenna port, a second antenna port, a first auxiliary port and a low-noise input port which are respectively used for being connected with an antenna; the first auxiliary port is connected with the first low-noise amplification unit through the first switch unit and the first filtering unit to form a first receiving link; the first antenna port is connected with the second low-noise amplification unit through the first switch unit and the second filter unit to form a second receiving link; the low-noise input port is connected with the third low-noise amplification unit to form a third receiving link; the second radio frequency front-end device comprises a fourth receiving link connected with a fourth antenna port; the first receiving link, the second receiving link, the third receiving link and the fourth receiving link are respectively used for supporting the receiving of the first radio frequency signal. According to the invention, multi-path receiving of the first radio frequency signal can be realized.

Description

Technical Field

[0001] This application relates to the field of radio frequency technology, and particularly to a radio frequency system and a communication device. Background Art

[0002] With the rapid development of communication technology, communication devices such as mobile phones, smart watches, and tablet computers have become increasingly popular and an indispensable part of people's daily lives. However, there is still room for improvement in the communication capabilities of existing communication devices. Summary of the Invention

[0003] Embodiments of this application provide a radio frequency system and a communication device that can achieve multiplexed reception of a first radio frequency signal.

[0004] Embodiments of this application provide a radio frequency system, which at least includes:

[0005] A first radio frequency front-end device, which is at least configured with a first antenna port, a second antenna port, a first auxiliary port, a low-noise input port, and a transceiver port for connecting to an antenna, and at least includes a first low-noise amplification unit, a second low-noise amplification unit, a third low-noise amplification unit, a first filtering unit, a second filtering unit, and a first switching unit; wherein,

[0006] The first auxiliary port is connected to the first low-noise amplification unit through the first switching unit and the first filtering unit to form a first reception link;

[0007] The first antenna port is connected to the second low-noise amplification unit through the first switching unit and the second filtering unit to form a second reception link;

[0008] The low-noise input port is connected to the third low-noise amplification unit to form a third reception link;

[0009] A second radio frequency front-end device, which is at least configured with a fourth antenna port for connecting to an antenna, and at least includes a fourth reception link connected to the fourth antenna port; wherein, the second antenna port is connected to the fourth antenna port through the first switching unit and the transceiver port;

[0010] The first reception link, the second reception link, the third reception link, and the fourth reception link are respectively used to support the reception of a first radio frequency signal.

[0011] Embodiments of this application provide a communication device, which includes the radio frequency system as described above.

[0012] The above radio frequency system and communication device include a first radio frequency front-end device and a second radio frequency front-end device, provide a first receiving link through a first auxiliary port, a first switching unit, a first filtering unit and a first low-noise amplification unit in the first radio frequency front-end device, provide a second receiving link through a first antenna port, a first switching unit, a second filtering unit and a second low-noise amplification unit in the first radio frequency front-end device, provide a third receiving link through a low-noise input port and a third low-noise amplification unit in the first radio frequency front-end device, and also provide a fourth receiving link through a second antenna port, a first switching unit and a transceiver port in the first radio frequency front-end device and a fourth antenna port in the second radio frequency front-end device. Thus, through the first receiving link, the second receiving link, the third receiving link and the fourth receiving link, multiplexed reception of the first radio frequency signal, that is, at least four-way reception, can be achieved, effectively utilizing the internal devices of the first radio frequency front-end device and the second radio frequency front-end device, and reducing costs and the occupied area of the devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 Schematic structural diagram of a Phase7 radio frequency system according to an embodiment;

[0015] Figure 2 Schematic structural diagram of a Phase7 lite radio frequency system according to an embodiment;

[0016] Figure 3 Schematic structural diagram of a Phase7 LE radio frequency system according to an embodiment;

[0017] Figure 4 One of the schematic structural diagrams of a radio frequency system according to an embodiment;

[0018] Figure 5 Another schematic structural diagram of a radio frequency system according to an embodiment;

[0019] Figure 6 Another schematic structural diagram of a radio frequency system according to an embodiment;

[0020] Figure 7 Another schematic structural diagram of a radio frequency system according to an embodiment;

[0021] Figure 8 Another schematic structural diagram of a radio frequency system according to an embodiment;

[0022] Figure 9 The sixth structural schematic diagram of the RF system according to an embodiment;

[0023] Figure 10 The seventh structural schematic diagram of the RF system according to an embodiment;

[0024] Figure 11 The eighth structural schematic diagram of the RF system according to an embodiment;

[0025] Figure 12 The ninth structural schematic diagram of the RF system according to an embodiment;

[0026] Figure 13 The tenth structural schematic diagram of the RF system according to an embodiment;

[0027] Figure 14 The structural schematic diagram of a communication device according to an embodiment.

[0028] Explanation of reference numerals:

[0029] 10. First radio frequency front-end device; 101. First low-noise amplification unit; 102. Second low-noise amplification unit; 103. Third low-noise amplification unit; 104. First filtering unit; 105. Second filtering unit; 106. First switching unit; 107. Power amplification unit; 108. Fifth switching unit; 20. Second radio frequency front-end device; 201. Second switching unit; 202. Third switching unit; 203. Third filtering unit; 204. Fourth filtering unit; 205. Fourth low-noise amplification unit; 206. Fourth switching unit; 207. Seventh filtering unit; 208. Seventh low-noise amplification unit; 30. Radio frequency transceiver; 301. First auxiliary port; 302. First antenna port; 303. Low-noise input port; 304. Second antenna port; 305. Transceiver port; 306. First low-noise output port; 307. Second low-noise output port; 308. Third low-noise output port; 309. Input port; 401. Fourth antenna port; 402. Second auxiliary port; 403. Third auxiliary port; 404. Fourth auxiliary port; 405. Fifth auxiliary port; 406. First output port; 407. Second output port; 408. Third output port; 409. Fourth output port; 410. Fifth output port; 411. Sixth output port; 501. Fifth filtering unit; 502. Sixth filtering unit; 503. Fifth low-noise amplification unit; 504. Sixth low-noise amplification unit; 505. Eighth filtering unit; 506. Ninth filtering unit; 507. Tenth filtering unit; 508. Eighth low-noise amplification unit; 509. Ninth low-noise amplification unit; 510. Tenth low-noise amplification unit; 60. Radio frequency front-end module; 601. First radio frequency front-end module; 602. Second radio frequency front-end module; 90. Mobile phone; 91. Memory; 911. Operating system; 912. Communication module; 913. GPS module; 92. Processing circuit; 93. I / O subsystem; 931. Button; 94. Antenna device; 95. Signal line. Detailed implementation manners

[0030] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] It can be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, the first radio frequency front-end device may be referred to as the second radio frequency front-end device, and similarly, the second radio frequency front-end device may be referred to as the first radio frequency front-end device. Both the first radio frequency front-end device and the second radio frequency front-end device are radio frequency front-end devices, but they are not the same radio frequency front-end device.

[0033] It can be understood that for "connection" in the following embodiments, if there is transmission of electrical signals or data between the connected circuits, units, etc., it should be understood as "electrical connection", "communication connection", etc.

[0034] It can be understood that "at least one" means one or more, and "a plurality" means two or more. "At least part of an element" means part or all of the element.

[0035] As used herein, the singular forms "a", "an", and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0036] 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 under various network standards such as 2G, 3G, 4G, and 5G; limited by the size constraints of terminal devices, the space of the main board has not increased significantly due to the increasing demands, which will lead to a very tight layout and wiring of the main board space.

[0037] In order to meet the increasing demands of various network standards and at the same time address the issue of tight layout, the high integration and miniaturization of the radio frequency system in terminal devices have become an obvious development trend. From the initial second-generation (Phase2) radio frequency front-end device that only supported a single frequency band to the seventh-generation (Phase7) radio frequency front-end device that supports the integration of various standards, the integration degree of radio frequency front-end devices is getting higher and higher, and at the same time, the package size of radio frequency front-end devices is getting smaller and smaller.

[0038] The following takes the seventh-generation RF front-end device product as an example for illustration. The seventh-generation RF front-end device includes three RF system solutions: Phase7, Phase7lite, and Phase7 LE.

[0039] Figure 1 It is a schematic diagram of the Phase7 RF system architecture. As Figure 1 shown, this RF system includes an RF transceiver, a low-noise amplifier module, an RF front-end device, a switching device, and an antenna.

[0040] Among them, the RF transceiver can support the transmission or reception functions of wireless RF signals of multiple standards. The signals of these multiple communication standards can include, for example, 2G signals, 3G signals, 4G signals, and 5G signals.

[0041] The low-noise amplifier module includes low-noise amplifiers (LNAs) for low frequency (LB) and medium-high frequency (MHB). The low-noise amplifier module can perform power amplification processing on the signals of the above-mentioned multiple communication standards.

[0042] The RF front-end device can be referred to as an RF front-end integrated module (PA Mid). The RF front-end device can include a mid-low frequency RF front-end device and a mid-high frequency RF front-end device. Among them, the mid-low frequency RF front-end device can include a mid-low frequency RF front-end device that supports 2G signals, and a low-frequency RF front-end device that supports 3G signals, 4G signals, and 5G signals. The mid-high frequency RF front-end device can include a mid-high frequency RF front-end device that supports 3G signals, 4G signals, and 5G signals. The RF front-end device can process the signals of the above-mentioned multiple communication standards. For example, power amplification processing, filtering processing, etc. The mid-low frequency RF front-end device and the mid-high frequency RF front-end device can include, but are not limited to, switching devices, power amplifiers (PAs), impedance adjustment devices, duplexers, and other devices. The low-frequency RF front-end device and the mid-high frequency RF front-end device can be integrated chips of the above-mentioned multiple devices. The switching device can be respectively connected to multiple antennas.

[0043] Figure 2 It is a schematic diagram of the Phase7 lite RF system architecture. As Figure 2 shown, this RF system includes an RF transceiver, an RF front-end device, a switching device, and an antenna. Referring to Figure 1 and Figure 2 , it can be seen that the main difference between the Phase7 lite RF system and the Phase7 RF system is that the RF front-end device in the Phase7 lite RF system integrates the low-noise amplifier module, and the mid-high frequency RF front-end device in the Phase7lite RF system integrates the switching device.

[0044] Figure 3It is a schematic diagram of the Phase7 LE RF system architecture. As Figure 3 shown, the RF system includes an RF transceiver, RF front-end devices, and an antenna. Refer to Figure 1 and Figure 3 , it can be seen that the main difference between the Phase7 LE RF system and the Phase7 RF system is that the RF front-end devices in the Phase7 LE RF system integrate a low-noise amplifier module and switching devices, and the RF front-end devices include low-frequency RF front-end devices and medium-high-frequency RF front-end devices.

[0045] It should be noted that for the convenience of understanding the RF system, the above mainly introduces the RF system in detail from the development requirements and development process of the RF front-end devices. The RF front-end devices involved in the embodiments of the present application can be any type of RF front-end devices mentioned above.

[0046] With the development of communication technologies, people's demand for RF communication quality is getting higher and higher. Multi-path reception (RX) is a technical direction for the evolution of future 6G and communication technologies, and it plays a great role in solving the user's downlink rate and bandwidth. For example, downlink six-path reception (6RX) can effectively improve the coverage gain or, in some scenarios, improve the number of user downlink streams.

[0047] The core technology of multi-path reception such as 6RX is to increase the number of downlink channels, specifically, to increase the number of downlink RFs and antennas. However, in the related technologies, to implement multi-path reception, additional receive link design is required, that is, additional devices supporting the reception of RF signals, such as low-noise amplifiers, filters, etc., are added, which will obviously increase the cost and area additionally.

[0048] Based on the above, the embodiments of the present application provide an RF system that can reuse the internal devices of the RF front-end devices to implement multi-path reception and reduce the cost and occupied area.

[0049] The RF system involved in the embodiments of the present application can be applied to communication devices with wireless communication functions, and the communication devices can be handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user equipment (UE) (for example, mobile phones), mobile stations (MS), etc.

[0050] In some embodiments, as Figure 4 shown, an RF system is provided, including a first RF front-end device 10 and a second RF front-end device 20.

[0051] The first radio frequency front-end device 10 is at least configured with a transceiver port 305, and a first antenna port 302, a second antenna port 304, a first auxiliary port 301, and a low-noise input port 303 respectively used for connecting to an antenna. Exemplarily, the first auxiliary port 301 is used to connect to the first antenna ANT1, the first antenna port 302 is used to connect to the second antenna ANT2, the low-noise amplification port is used to connect to the third antenna ANT3, and the second antenna port 304 is used to connect to the fourth antenna ANT4.

[0052] The first radio frequency front-end device 10 at least includes a first low-noise amplification unit 101, a second low-noise amplification unit 102, a third low-noise amplification unit 103, a first filtering unit 104, a second filtering unit 105, and a first switching unit 106. Among them, the first auxiliary port 301 is connected to the first low-noise amplification unit 101 through the first switching unit 106 and the first filtering unit 104 to form a first receiving link RX1. The first antenna port 302 is connected to the second low-noise amplification unit 102 through the first switching unit 106 and the second filtering unit 105 to form a second receiving link RX2. The low-noise input port 303 is connected to the third low-noise amplification unit 103 to form a third receiving link RX3.

[0053] The second radio frequency front-end device 20 is at least configured with a fourth antenna port 401 for connecting to an antenna. The second radio frequency front-end device 20 at least includes a fourth receiving link RX4 connected to the fourth antenna port 401. The second antenna port 304 is connected to the fourth antenna port 401 through the first switching unit 106 and the transceiver port 305. Among them, the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, and the fourth receiving link RX4 are respectively used to support the reception of the first radio frequency signal.

[0054] Exemplarily, the first low-noise amplification unit 101, the second low-noise amplification unit 102, the third low-noise amplification unit 103, the first filtering unit 104, the second filtering unit 105, and the first switching unit 106 can be respectively built into the first radio frequency front-end device 10. The fourth receiving link RX4 is built into the second radio frequency front-end device 20, and the fourth receiving link RX4 can be used to support the reception of the first radio frequency signal.

[0055] Among them, the input end of the first low-noise amplification unit 101 is connected to the first end of the first filtering unit 104. The first low-noise amplification unit 101 is used to support the low-noise amplification process of the first radio frequency signal. Exemplarily, the first low-noise amplification unit 101 includes a low-noise amplifier (LNA). The second end of the first filtering unit 104 is connected to a first end of the first switching unit 106. The first filtering unit 104 is used to support the filtering process of the first radio frequency signal. Exemplarily, the first filtering unit 104 includes a surface acoustic wave filter (SAW).

[0056] The input end of the second low-noise amplification unit 102 is connected to the first end of the second filtering unit 105. The second low-noise amplification unit 102 is used to support the low-noise amplification process of the first radio frequency signal. Exemplarily, the second low-noise amplification unit 102 includes a low-noise amplifier. The second end of the second filtering unit 105 is connected to another first end of the first switching unit 106. The second filtering unit 105 is used to support the filtering process of the first radio frequency signal. Exemplarily, the second filtering unit 105 includes a surface acoustic wave filter.

[0057] Another first end of the first switching unit 106 is connected to the transceiver port 305 via the transceiver port 305. A second end of the first switching unit 106 is connected to the first auxiliary port 301. Another second end of the first switching unit 106 is connected to the first antenna port 302. Another second end of the first switching unit 106 is connected to the second antenna port 304. The first switching unit 106 can be used to select and conduct the path between the first filtering unit 104 and the first auxiliary port 301. The first switching unit 106 can also be used to select and conduct the path between the second filtering unit 105 and the first antenna port 302. The first switching unit 106 can also be used to select and conduct the path between the second antenna port 304 and the transceiver port 305. The first switching unit 106 can include a multi-pole multi-throw (n pole n throw, nPnT) switch. The first switching unit 106 can also include a single-pole multi-throw (singlepole n throw, SPnT) switch and a multi-pole multi-throw switch. In applications, the type of the first switching unit 106 can be set according to actual requirements and will not be overly limited here.

[0058] In the embodiments of the present application, the first radio frequency signal may include radio frequency signals in the B41 band and / or the n41 band. Based on this, the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, and the fourth receiving link RX4 are respectively used to support the reception of radio frequency signals in the B41 and / or n41 bands. Among them, the first filtering unit 104 and the second filtering unit 105 respectively support the filtering process of radio frequency signals in the B41 and / or n41 bands, and the first low-noise amplification unit 101, the second low-noise amplification unit 102, and the third low-noise amplification unit 103 respectively support the low-noise amplification process of radio frequency signals in the B41 and / or n41 bands.

[0059] In the application, the first receiving link RX1 can support the filtering process and the low-noise amplification process of the first radio frequency signal from the first auxiliary port 301. The second receiving link RX2 can support the filtering process and the low-noise amplification process of the first radio frequency signal from the first antenna port 302. The third receiving link RX3 can support the low-noise amplification process of the first radio frequency signal from the low-noise amplification port. The fourth receiving link RX4 can support the reception of the first radio frequency signal transmitted from the second antenna port 304 to the fourth antenna port 401 through the transceiver port 305.

[0060] The radio frequency system provided in the above embodiments includes a first radio frequency front-end device 10 and a second radio frequency front-end device 20. The radio frequency system provides the first receiving link RX1 through the first auxiliary port 301, the first switch unit 106, the first filtering unit 104, and the first low-noise amplification unit 101 in the first radio frequency front-end device 10, and provides the second receiving link RX2 through the first antenna port 302, the first switch unit 106, the second filtering unit 105, and the second low-noise amplification unit 102 in the first radio frequency front-end device 10. The third receiving link RX3 is provided through the low-noise input port 303 and the third low-noise amplification unit 103 in the first radio frequency front-end device 10, and the fourth receiving link RX4 is also provided through the second antenna port 304, the first switch unit 106, and the transceiver port 305 in the first radio frequency front-end device 10 and the fourth antenna port 401 in the second radio frequency front-end device 20. Therefore, through the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, and the fourth receiving link RX4, the multi-path reception of the first radio frequency signal, that is, at least four-way reception, can be realized, improving the reception performance of the system. Moreover, the radio frequency system realizes the effective utilization of the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, reducing the cost and the occupied area of the devices.

[0061] In some embodiments, such as Figure 5 and Figure 6As shown, the second radio frequency front-end device 20 is further configured with a second auxiliary port 402 and a third auxiliary port 403 for connecting to an antenna. Exemplarily, the second auxiliary port 402 is used to connect to the fifth antenna ANT5, and the third auxiliary port 403 is used to connect to the sixth antenna ANT6. The second radio frequency front-end device 20 further includes a second switch unit 201, a third switch unit 202, a third filter unit 203, a fourth filter unit 204, and a fourth low-noise amplification unit 205. The second switch unit 201, the third switch unit 202, the third filter unit 203, the fourth filter unit 204, and the fourth low-noise amplification unit 205 can be built into the second radio frequency front-end device 20.

[0062] Among them, the second auxiliary port 402 is connected to the fourth low-noise amplification unit 205 through the second switch unit 201 and the third filter unit 203, forming a fifth receiving link RX5. The fifth receiving link RX5 at least includes the second auxiliary port 402, the second switch unit 201, the third filter unit 203, and the fourth low-noise amplification unit 205. The fifth receiving link RX5 is used to support the reception of the first radio frequency signal. The third auxiliary port 403 is connected to the fourth low-noise amplification unit 205, forming a sixth receiving link RX6. The sixth receiving link RX6 at least includes the third auxiliary port 403 and the fourth low-noise amplification unit 205. The sixth receiving link RX6 is used to support the reception of the first radio frequency signal. The fourth antenna port 401 is connected to the fourth low-noise amplification unit 205 through the third switch unit 202 and the fourth filter unit 204, forming a fourth receiving link RX4. The fourth receiving link RX4 at least includes the fourth antenna port 401, the third switch unit 202, the fourth filter unit 204, and the fourth low-noise amplification unit 205.

[0063] A first end of the second switch unit 201 is connected to the second auxiliary port 402, and a second end of the second switch unit 201 is connected to a first end of the third filter unit 203. The second switch unit 201 is used to select and conduct the path between the second auxiliary port 402 and the third filter unit 203. A second end of the third filter unit 203 is connected to an input end of the fourth low-noise amplification unit 205. The third filter unit 203 is used to support the filtering process of the first radio frequency signal. Exemplarily, the third filter unit 203 includes a surface acoustic wave filter. The fourth low-noise amplification unit 205 can be used to support the low-noise amplification process of the first radio frequency signal. Exemplarily, the fourth low-noise amplification unit 205 includes a low-noise amplifier.

[0064] A first end of a third switch unit 202 is connected to a fourth antenna port 401, and a second end of the third switch unit 202 is connected to a first end of a fourth filtering unit 204. The third switch unit 202 is configured to selectively conduct a path between the fourth antenna port 401 and the fourth filtering unit 204. A second end of the fourth filtering unit 204 is connected to another input end of a fourth low-noise amplification unit 205, and the fourth filtering unit 204 is configured to support filtering processing of a first radio frequency signal. Exemplarily, the fourth filtering unit 204 includes a surface acoustic wave filter.

[0065] Exemplarily, if the first radio frequency signal includes a radio frequency signal in B41 and / or n41 frequency bands, a fifth receiving link RX5 and a sixth receiving link RX6 are respectively configured to support reception of radio frequency signals in B41 and / or n41 frequency bands, a third filtering unit 203 and a fourth filtering unit 204 are respectively configured to support filtering processing of radio frequency signals in B41 and / or n41 frequency bands, and a fourth low-noise amplification unit 205 is configured to support low-noise amplification processing of radio frequency signals in B41 and / or n41 frequency bands.

[0066] In the radio frequency system provided in the foregoing embodiment, a fifth receiving link RX5 is provided through a second auxiliary port 402 in a second radio frequency front-end device 20 via a second switch unit 201, a third filtering unit 203, and a fourth low-noise amplification unit 205, and a sixth receiving link RX6 is provided through a third auxiliary port 403 in the second radio frequency front-end device 20 and the fourth low-noise amplification unit 205, so that reception of the first radio frequency signal can be supported through the fifth receiving link RX5 and the sixth receiving link RX6 respectively. Thus, combined with a first receiving link RX1, a second receiving link RX2, a third receiving link RX3, and a fourth receiving link RX4, multi-path reception of the first radio frequency signal, that is, at least six-path reception, can be achieved, the reception performance of the radio frequency system for the first radio frequency signal is improved, and further, the utilization rate of internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20 is improved, and the cost and occupied area are reduced.

[0067] Please continue to refer to Figure 5 and Figure 6, in some embodiments, the second antenna port 304 is connected to the fourth low-noise amplification unit 205 via the first switch unit 106, the transceiver port 305, the fourth antenna port 401, the third switch unit 202, the second switch unit 201, and the fourth filtering unit 204 to form the seventh receiving link RX7. The seventh receiving link RX7 at least includes the second antenna port 304, the first switch unit 106, the transceiver port 305, the fourth antenna port 401, the third switch unit 202, the second switch unit 201, the fourth filtering unit 204, and the fourth low-noise amplification unit 205. The seventh receiving link RX7 is used to support the reception of the second radio frequency signal. Among them, the frequency band of the second radio frequency signal is different from that of the first radio frequency signal.

[0068] Among them, the other second end of the third switch unit 202 is connected to the other first end of the second switch unit 201. The third switch unit 202 is further used to select and conduct the path between the fourth antenna port 401 and the second switch unit 201. The second switch unit 201 is further used to select and conduct the path between the third switch unit 202 and the third filtering unit 203. The fourth filtering unit 204 is further used to support the filtering process of the second radio frequency signal. The fourth low-noise amplification unit 205 is further used to support the low-noise amplification process of the second radio frequency signal.

[0069] Exemplarily, the first radio frequency signal includes a radio frequency signal in the B41 and / or n41 frequency bands, and the second radio frequency signal includes a radio frequency signal in the B7 frequency band; correspondingly, the fourth filtering unit 204 can support the filtering process of radio frequency signals in the B41, n41, and B7 frequency bands, and the fourth low-noise amplification unit 205 can support the low-noise amplification process of radio frequency signals in the B41, n41, and B7 frequency bands.

[0070] In application, the seventh receiving link RX7 can support the filtering process and low-noise amplification process of the second radio frequency signal such as the B7 frequency band from the fourth antenna port 401.

[0071] The radio frequency system provided by the above embodiments can jointly provide the seventh receiving link RX7 through the second antenna port 304, the first switch unit 106, and the transceiver port 305 in the first radio frequency front-end device 10, and the fourth antenna port 401, the third switch unit 202, the second switch unit 201, the fourth filtering unit 204, and the fourth low-noise amplification unit 205 in the second radio frequency front-end device 20, so as to support the reception of the second radio frequency signal through the seventh receiving link RX7, improving the reception performance of the system; and, through the fourth receiving link RX4 and the seventh receiving link RX7, the reception multiplexing of the first radio frequency signal and the second radio frequency signal for the fourth filtering unit 204 and the fourth low-noise amplification unit 205 is realized, further improving the utilization rate of the internal devices in the second radio frequency front-end device 20, reducing the cost and the occupied area of the devices.

[0072] Please continue to refer to Figure 5 and Figure 6 , in some embodiments, the radio frequency system further includes a fifth filtering unit 501 and a sixth filtering unit 502 for connecting to an antenna. Exemplarily, the fifth filtering unit 501 is used to connect to the third antenna ANT3, and the sixth filtering unit 502 is used to connect to the sixth antenna ANT6.

[0073] Wherein, the fifth filtering unit 501 is connected to the third receiving link RX3 through the low-noise input port 303 to form an eighth receiving link RX8, and the eighth receiving link RX8 is used to support the reception of the first radio frequency signal. The eighth receiving link RX8 includes at least the fifth filtering unit 501. The fifth filtering unit 501 can be used to support the filtering process of the first radio frequency signal. Exemplarily, the fifth filtering unit 501 includes a surface acoustic wave filter. The fifth filtering unit 501 can be externally disposed relative to the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0074] In an application, the first end of the fifth filtering unit 501 can be connected to the third antenna ANT3, the second end of the fifth filtering unit 501 can be connected to the low-noise input port 303, the fifth filtering unit 501 can support the filtering process of the first radio frequency signal received by the third antenna ANT3, and the third low-noise amplification unit 103 can be used to support the low-noise amplification process of the first radio frequency signal filtered by the fifth filtering unit 501. Thus, the eighth receiving link RX8 and the third receiving link RX3 can be jointly used to support the reception of the first radio frequency signal from the same antenna.

[0075] The sixth filtering unit 502 is connected to the sixth receiving link RX6 through the third auxiliary port 403 to form a ninth receiving link RX9, and the ninth receiving link RX9 is used to support the reception of the first radio frequency signal. The ninth receiving link RX9 includes at least the sixth filtering unit 502. The sixth filtering unit 502 can be used to support the filtering process of the first radio frequency signal. Exemplarily, the sixth filtering unit 502 includes a surface acoustic wave filter. The sixth filtering unit 502 can be externally disposed relative to the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0076] In an application, the first end of the sixth filtering unit 502 can be connected to the sixth antenna ANT6, the second end of the sixth filtering unit 502 can be connected to the third auxiliary port 403, the sixth filtering unit 502 can support the filtering process of the first radio frequency signal received by the sixth antenna ANT6, and the fourth low-noise amplification unit 205 can be used to support the low-noise amplification process of the first radio frequency signal filtered by the sixth filtering unit 502. Thus, the ninth receiving link RX9 and the sixth receiving link RX6 can be jointly used to support the reception of the first radio frequency signal from the same antenna.

[0077] The RF system provided by the above embodiments can provide an eighth receiving link RX8 through an externally attached fifth filtering unit 501, so that the first RF signal from the same antenna can be supported for reception through the eighth receiving link RX8 and the third receiving link RX3. In addition, the RF system can also provide a ninth receiving link RX9 through an externally attached sixth filtering unit 502, so that the first RF signal from the same antenna can be supported for reception through the ninth receiving link RX9 and the sixth receiving link RX6. Furthermore, the RF system can perform filtering processing and low-noise amplification processing on the first RF signal received by each antenna, realizing at least six-way reception of the first RF signal, and further improving the reception performance of the RF system for the first RF signal.

[0078] Please continue to refer to Figure 5 and Figure 6 , in some embodiments, the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the fifth receiving link RX5, the sixth receiving link RX6, the eighth receiving link RX8, and the ninth receiving link RX9 work simultaneously to support six-way simultaneous reception of the first RF signal.

[0079] For example, if the first RF signal includes RF signals in the B41 and / or n41 frequency bands, then the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the fifth receiving link RX5, the sixth receiving link RX6, the eighth receiving link RX8, and the ninth receiving link RX9 work simultaneously to support six-way simultaneous reception (6RX) of the RF signals in the B41 and / or n41 frequency bands.

[0080] Please continue to refer to Figure 5 and Figure 6 , in some embodiments, the RF system further includes an RF transceiver 30. The first RF front-end device 10 is further configured with a first low-noise output port 306, a second low-noise output port 307, and a third low-noise output port 308 respectively connected to the RF transceiver 30. The second RF front-end device 20 is further configured with a first output port 406, a second output port 407, and a third output port 408 connected to the RF transceiver 30. Among them, the first low-noise amplification unit 101 is connected to the first low-noise output port 306, the second low-noise amplification unit 102 is connected to the second low-noise output port 307, the third low-noise amplification unit 103 is connected to the third low-noise output port 308, one output end of the fourth low-noise amplification unit 205 is connected to the first output port 406, another output end of the fourth low-noise amplification unit 205 is connected to the second output port 407, and yet another output end of the fourth low-noise amplification unit 205 is connected to the third output port 408.

[0081] Based on the above, combined with Figure 5 and Figure 6 , for the scenario where the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the fifth receiving link RX5, the sixth receiving link RX6, the eighth receiving link RX8, and the ninth receiving link RX9 work simultaneously, the six-way simultaneous reception of the first radio frequency signal is introduced below.

[0082] The first path of reception of the first radio frequency signal: The first receiving link RX1. The first receiving link RX1 includes the first auxiliary port 301 in the first radio frequency front-end device 10, the first switch unit 106, the first filtering unit 104, the first low-noise amplification unit 101, and the first low-noise output port 306. In an application, the first auxiliary port 301 is connected to the first antenna ANT1. Then, the first radio frequency signal received by the first antenna ANT1 enters the first switch unit 106 through the first auxiliary port 301. The first radio frequency signal enters the first filtering unit 104 through the first switch unit 106, and after being filtered by the first filtering unit 104, it enters the first low-noise amplification unit 101. After being subjected to low-noise amplification processing by the first low-noise amplification unit 101, it is input into the radio frequency transceiver 30 through the first low-noise output port 306.

[0083] The second path of reception of the first radio frequency signal: The second receiving link RX2. The second receiving link RX2 includes the first antenna port 302, the first switch unit 106, the second filtering unit 105, the second low-noise amplification unit 102, and the second low-noise output port 307. In an application, the first antenna port 302 is connected to the second antenna ANT2. Then, the first radio frequency signal received by the second antenna ANT2 enters the first switch unit 106 through the first antenna port 302. The first radio frequency signal enters the second filtering unit 105 through the first switch unit 106. The first radio frequency signal enters the second low-noise amplification unit 102 after being filtered by the second filtering unit 105. After the second low-noise amplification unit 102 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the second low-noise output port 307.

[0084] The third path of receiving the first radio frequency signal: the third receiving link RX3 and the eighth receiving link RX8. Among them, the third receiving link RX3 includes a low-noise input port 303, a third low-noise amplification unit 103, and a third low-noise output port 308. The eighth receiving link RX8 includes a fifth filtering unit 501. In application, the third antenna ANT3 is connected to the low-noise input port 303 via the fifth filtering unit 501. Then, the first radio frequency signal received by the third antenna ANT3 is filtered by the fifth filtering unit 501 and enters the third low-noise amplification unit 103 through the low-noise input port 303. After the third low-noise amplification unit 103 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the third low-noise output port 308.

[0085] The fourth path of receiving the first radio frequency signal: the fourth receiving link RX4. The fourth receiving link RX4 includes a fourth antenna port 401, a third switching unit 202, a fourth filtering unit 204, a fourth low-noise amplification unit 205, and a first output port 406. In application, the fourth antenna ANT4 can be connected to the fourth antenna port 401 via the second antenna port 304, the first switching unit 106, and the transceiver port 305. Then, the first radio frequency signal received by the fourth antenna ANT4 enters the first switching unit 106 through the second antenna port 304. The first radio frequency signal enters the third switching unit 202 through the first switching unit 106, the transceiver port 305, and the fourth antenna port 401, and enters the fourth filtering unit 204 through the third switching unit 202. After the fourth filtering unit 204 performs filtering processing on the first radio frequency signal, it enters the fourth low-noise amplification unit 205. After the fourth low-noise amplification unit 205 performs low-noise amplification on the first radio frequency signal, it enters the radio frequency transceiver 30 through the first output port 406.

[0086] The fifth path of receiving the first radio frequency signal: the fifth receiving link RX5. The fifth receiving link RX5 includes a second auxiliary port 402, a second switching unit 201, a third filtering unit 203, a fourth low-noise amplification unit 205, and a second output port 407. In application, the fifth antenna ANT5 can be connected to the second auxiliary port 402. Then, the first radio frequency signal received by the fifth antenna ANT5 enters the second switching unit 201 through the second auxiliary port 402. The first radio frequency signal enters the third filtering unit 203 through the second switching unit 201. After the third filtering unit 203 performs filtering processing on the first radio frequency signal, it enters the fourth low-noise amplification unit 205. After the fourth low-noise amplification unit 205 performs low-noise amplification processing on the first radio frequency signal, it enters the radio frequency transceiver 30 through the second output port 407.

[0087] The sixth reception of the first RF signal: the sixth reception link RX6 and the ninth reception link RX9. The sixth reception link RX6 includes a third auxiliary port 403, a fourth low noise amplifier unit 205 and a third output port 408. The ninth reception link RX9 includes a sixth filtering unit 502. In application, the sixth antenna ANT6 can be connected to the third auxiliary port 403 via the sixth filtering unit 502, and the first RF signal received by the sixth antenna ANT6 enters the sixth filtering unit 502, and the sixth filtering unit 502 filters the first RF signal and then enters the fourth low noise amplifier unit 205, and the fourth low noise amplifier unit 205 performs low noise amplification on the first RF signal and then enters the RF transceiver 30 via the third output port 408.

[0088] Among them, the fourth low-noise amplification unit 205 may include at least three low-noise amplifiers, one of which is respectively connected to the fourth filtering unit 204 and the first output port 406, another low-noise amplifier is respectively connected to the fifth filtering unit 501 and the second output port 407, and another low-noise amplifier is respectively connected to the sixth filtering unit 502 and the third output port 408, and the three low-noise amplifiers respectively support low-noise amplification processing of the first RF signal to support six-way simultaneous reception of the first RF signal.

[0089] The above embodiment provides a radio frequency system, which realizes six-way simultaneous reception of the first radio frequency signal through the simultaneous operation of the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the fifth receiving link RX5, the sixth receiving link RX6, the eighth receiving link RX8 and the ninth receiving link RX9, thereby improving the reception performance of the radio frequency system for the first radio frequency signal and providing technical support for realizing 6G communication; and, the radio frequency system realizes effective utilization of the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, and two external filtering units are used to support six-way simultaneous reception of the first radio frequency signal, thereby reducing the cost and occupied area.

[0090] Please continue reading Figure 5 and Figure 6 In some embodiments, the eighth receiving link RX8 further includes a fifth low noise amplifying unit 503, and the fifth low noise amplifying unit 503 is respectively connected to the low noise input port 303 and the fifth filtering unit 501. The fifth low noise amplifying unit 503 is used to support low noise amplification processing of the first radio frequency signal. Exemplarily, the fifth low noise amplifying unit 503 includes a low noise amplifier.

[0091] In the application, the first radio frequency signal received by the third antenna ANT3 enters the fifth low-noise amplification unit 503 after being filtered by the fifth filtering unit 501. After the fifth low-noise amplification unit 503 performs low-noise amplification processing on the first radio frequency signal, the first radio frequency signal enters the third low-noise amplification unit 103 through the low-noise input port 303. After the third low-noise amplification unit 103 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the third low-noise output port 308. That is to say, after the first radio frequency signal is subjected to primary low-noise amplification by the fifth low-noise amplification unit 503, it is then subjected to secondary low-noise amplification by the third low-noise amplification unit 103. In this way, through two-stage low-noise amplification, the first radio frequency signal can be amplified more effectively, thereby improving the receiving sensitivity of the radio frequency system.

[0092] The ninth receiving link RX9 further includes a sixth low-noise amplification unit 504, and the sixth low-noise amplification unit 504 is respectively connected to the third auxiliary port 403 and the sixth filtering unit 502. The sixth low-noise amplification unit 504 supports low-noise amplification processing of the first radio frequency signal. Exemplarily, the sixth low-noise amplification unit 504 includes a low-noise amplifier.

[0093] In the application, the first radio frequency signal received by the sixth antenna ANT6 enters the sixth low-noise amplification unit 504 after being filtered by the sixth filtering unit 502. After the sixth low-noise amplification unit 504 performs low-noise amplification processing on the first radio frequency signal, the first radio frequency signal enters the fourth low-noise amplification unit 205 through the third auxiliary port 403. After the fourth low-noise amplification unit 205 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the third output port 408. That is to say, after the first radio frequency signal is subjected to primary low-noise amplification by the sixth low-noise amplification unit 504, it is then subjected to secondary low-noise amplification by the fourth low-noise amplification unit 205. In this way, through two-stage low-noise amplification, the first radio frequency signal can be amplified more effectively, thereby improving the receiving sensitivity of the radio frequency system.

[0094] Among them, the fifth filtering unit 501, the sixth filtering unit 502, the fifth low-noise amplification unit 503 and the sixth low-noise amplification unit 504 are respectively externally disposed on the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0095] The above embodiment provides a radio frequency system, which realizes six-way simultaneous reception of the first radio frequency signal through the simultaneous operation of the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the fifth receiving link RX5, the sixth receiving link RX6, the eighth receiving link RX8 and the ninth receiving link RX9, thereby improving the reception performance of the radio frequency system for the first radio frequency signal and providing technical support for realizing 6G communication; and, the radio frequency system realizes effective utilization of the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, and has two external low-noise amplification units and two filtering units, supporting six-way simultaneous reception of the first radio frequency signal, reducing the cost and occupied area, and two of the receptions support secondary low-noise amplification of the first radio frequency signal, improving the receiving sensitivity and helping to improve the communication performance.

[0096] In some embodiments, Figure 7 As shown, the RF system includes two RF front-end modules 60, and each RF front-end module 60 includes a first RF front-end device 10 and a second RF front-end device 20. The specific introduction of the first RF front-end device 10 and the second RF front-end device 20 in each RF front-end module 60 can be found in the previous text, which will not be repeated here. Exemplarily, the two RF front-end modules 60 include a first RF front-end module 601 and a second RF front-end module 602.

[0097] Among them, the first receiving link RX1 in any RF front-end module 60, the second receiving link RX2 in two RF front-end modules 60, the fourth receiving link RX4 in two RF front-end modules 60, and the fifth receiving link RX5 in any RF front-end module 60 work simultaneously to support six-way simultaneous reception of the first RF signal.

[0098] like Figure 8 and Figure 9 As shown, the RF system includes a first antenna ANT1, two second antennas ANT2, two fourth antennas ANT4 and a fifth antenna ANT5. The first auxiliary port 301 of the first RF front-end device 10 in any RF front-end module 60 is connected to the first antenna ANT1; in the two RF front-end modules 60, each first antenna port 302 is connected to a second antenna ANT2, and each second antenna port 304 is connected to a fourth antenna ANT4; the second auxiliary port 402 of the second RF front-end device 20 in any RF front-end module 60 is connected to the fifth antenna ANT5.

[0099] Among them, the first receiving link RX1 in any one of the radio frequency front-end modules 60 receives a first radio frequency signal from the first antenna ANT1; in the two radio frequency front-end modules 60, each second receiving link RX2 receives a first radio frequency signal from the second antenna ANT2, and each fourth receiving link RX4 receives a first radio frequency signal from the fourth antenna ANT4; the fifth receiving link RX5 in any one of the radio frequency front-end modules 60 receives a first radio frequency signal from the fifth antenna ANT5; thus, by the six receiving links in the two radio frequency front-end modules 60 working simultaneously, six-way simultaneous reception of the first radio frequency signal, such as the radio frequency signal in the N41 and / or B41 frequency bands, is achieved.

[0100] Exemplarily, as Figure 8 and Figure 9 shown, in the same radio frequency front-end module 60, such as the first radio frequency front-end module 601, the first auxiliary port 301 is connected to the first antenna ANT1, and the second auxiliary port 402 is connected to the fifth antenna ANT5; in the two radio frequency front-end modules 60, each first antenna port 302 is connected to a second antenna ANT2, and each second antenna port 304 is connected to a fourth antenna ANT4. Based on this, the first receiving link RX1 and the fifth receiving link RX5 in the same radio frequency front-end module 60, the second receiving links RX2 in the two radio frequency front-end modules 60, and the fourth receiving links RX4 in the two radio frequency front-end modules 60 work simultaneously to support six-way simultaneous reception of the first radio frequency signal.

[0101] Another exemplarily, the first auxiliary port 301 in one radio frequency front-end module 60 is connected to the first antenna ANT1, and the second auxiliary port 402 in another radio frequency front-end module 60 is connected to the fifth antenna ANT5; the first antenna ports 302 in the two radio frequency front-end modules 60 are respectively connected to a second antenna ANT2. Based on this, the first receiving link RX1 in one radio frequency front-end module 60, the second receiving links RX2 in the two radio frequency front-end modules 60, the fourth receiving links RX4 in the two radio frequency front-end modules 60, and the fifth receiving link RX5 in another radio frequency front-end module 60 work simultaneously to support six-way simultaneous reception of the first radio frequency signal.

[0102] The RF system provided by the above embodiments provides at least two first receiving links RX1, two second receiving links RX2, two fourth receiving links RX4, and two fifth receiving links RX5 through the first RF front-end device 10 and the second RF front-end device 20 of the two RF front-end modules 60, thereby providing support for realizing multi-path reception of the first RF signal. Based on this, the RF system realizes six-way simultaneous reception of the first RF signal by simultaneously operating the first receiving link RX1 in any one of the RF front-end modules 60, the second receiving link RX2 in the two RF front-end modules 60, the fourth receiving link RX4 in the two RF front-end modules 60, and the fifth receiving link RX5 in any one of the RF front-end modules 60. This RF system does not require external devices, reducing costs and occupied area.

[0103] In some embodiments, as Figure 7 shown, the RF system includes two RF front-end modules 60, and each RF front-end module 60 includes a first RF front-end device 10 and a second RF front-end device 20. Among them, the specific introduction of the first RF front-end device 10 and the second RF front-end device 20 in each RF front-end module 60 can be referred to the foregoing, and will not be elaborated here. Exemplarily, the two RF front-end modules 60 include a first RF front-end module 601 and a second RF front-end module 602. Among them, the second receiving link RX2, the fourth receiving link RX4, and the fifth receiving link RX5 in the two RF front-end modules 60 work simultaneously to support six-way simultaneous reception of the first RF signal.

[0104] As Figure 10 shown, the RF system may include two second antennas ANT2, two fourth antennas ANT4, and two fifth antennas ANT5. Among them, in the two RF front-end modules (including the first RF front-end module 601 and the second RF front-end module 602), each first antenna port 302 is connected to a second antenna ANT2, each second antenna port 304 is connected to a fourth antenna ANT4, and the second auxiliary port 402 is connected to the fifth antenna ANT5. In each RF front-end module 60, the second receiving link RX2 receives the first RF signal from the second antenna ANT2, the fourth receiving link RX4 receives the first RF signal from the fourth antenna ANT4, and the fifth receiving link RX5 receives the first RF signal from the fifth antenna ANT5; thus, the six receiving links work simultaneously to realize six-way simultaneous reception of the first RF signal such as the RF signal in the N41 and / or B41 frequency bands.

[0105] Among them, the second receiving link RX2, the fourth receiving link RX4, and the fifth receiving link RX5 in the two RF front-end modules 60 work simultaneously to support six-way simultaneous reception of the first RF signal. The signal path of each received signal can be referred to the foregoing for Figure 6The relevant description is not repeated here.

[0106] The radio frequency system provided by the above embodiments provides at least two second receiving links RX2, two fourth receiving links RX4, and two fifth receiving links RX5 through the first radio frequency front-end device 10 and the second radio frequency front-end device 20 of the two radio frequency front-end modules 60, thus providing support for realizing the multi-channel reception of the first radio frequency signal. Based on this, the radio frequency system realizes the six-channel simultaneous reception of the first radio frequency signal through the simultaneous operation of the second receiving link RX2, the fourth receiving link RX4, and the fifth receiving link RX5 in the two radio frequency front-end modules 60. This radio frequency system does not require external devices, reducing costs and occupied area.

[0107] It should be noted that the two radio frequency front-end modules 60 in the above radio frequency system are only taken as an example of realizing the six-channel simultaneous reception of the first radio frequency signal. In applications, the above radio frequency system can support other multi-channel simultaneous receptions of the first radio frequency signal. For example, eight-channel simultaneous reception, ten-channel simultaneous reception, etc. Specifically, the corresponding number of antennas can be set according to actual needs, and the corresponding receiving links can be controlled to work simultaneously, which is not limited too much here.

[0108] In some embodiments, as Figure 11 and Figure 12 shown, the second radio frequency front-end device 20 is further configured with a fourth auxiliary port 404 and a fifth auxiliary port 405 for connecting to the antenna. Among them, the fifth auxiliary port 405 and the foregoing third auxiliary port 403 can be the same port. The second radio frequency front-end device 20 further includes a fourth switch unit 206, a seventh filtering unit 207, and a seventh low-noise amplification unit 208. Among them, the fourth switch unit 206 and the foregoing third switch unit 202 can be the same switch unit. The seventh filtering unit 207 can be the same filtering unit as the foregoing fourth filtering unit 204. The seventh low-noise amplification unit 208 can be the same low-noise amplification unit as the foregoing fourth low-noise amplification unit 205.

[0109] Among them, the fourth auxiliary port 404 is connected to the seventh low-noise amplification unit 208 to form a tenth receiving link RX10. The tenth receiving link RX10 is used to support the reception of the first radio frequency signal. The tenth receiving link RX10 includes at least the fourth auxiliary port 404 and the seventh low-noise amplification unit 208.

[0110] The fifth auxiliary port 405 is connected to the seventh low-noise amplification unit 208 to form an eleventh receiving link RX11. The eleventh receiving link RX11 is used to support the reception of the first radio frequency signal. The eleventh receiving link RX11 includes at least the fifth auxiliary port 405 and the seventh low-noise amplification unit 208.

[0111] The fourth antenna port 401 is connected to the seventh low-noise amplification unit 208 via the fourth switching unit 206 and the seventh filtering unit 207, forming a fourth receiving link RX4. The fourth receiving link RX4 includes at least the fourth antenna port 401, the fourth switching unit 206, the seventh filtering unit 207, and the seventh low-noise amplification unit 208.

[0112] A first end of the fourth switching unit 206 is connected to the fourth antenna port 401, and a second end of the fourth switching unit 206 is connected to a first end of the seventh filtering unit 207. The fourth switching unit 206 is configured to selectively conduct the path between the fourth antenna port 401 and the seventh filtering unit 207. A second end of the seventh filtering unit 207 is connected to an input end of the seventh low-noise amplification unit 208. The seventh filtering unit 207 is configured to support filtering processing of the first radio frequency signal. Exemplarily, the seventh filtering unit 207 includes a surface acoustic wave filter. The seventh low-noise amplification unit 208 is configured to support low-noise amplification processing of the first radio frequency signal. Exemplarily, the seventh low-noise amplification unit 208 includes a low-noise amplifier.

[0113] The fourth auxiliary port 404 can be used to connect to the seventh antenna ANT7, and the seventh antenna ANT7 at least supports reception of the first radio frequency signal. The fifth auxiliary port 405 can be used to connect to the eighth antenna ANT8, and the eighth antenna ANT8 at least supports reception of the first radio frequency signal. Among them, the tenth receiving link RX10 supports reception of the first radio frequency signal from the seventh antenna ANT7. The eleventh receiving link RX11 supports reception of the first radio frequency signal from the eighth antenna ANT8.

[0114] The radio frequency system provided by the above embodiments provides the tenth receiving link RX10 through the fourth auxiliary port 404 and the seventh low-noise amplification unit 208 in the second radio frequency front-end device 20, provides the eleventh receiving link RX11 through the fifth auxiliary port 405 and the seventh low-noise amplification unit 208 in the second radio frequency front-end device 20, and provides the foregoing first receiving link RX1, second receiving link RX2, third receiving link RX3, and fourth receiving link RX4, thereby providing six receiving links for the first radio frequency signal, and further providing support for realizing multi-channel (such as 6RX) reception of the first radio frequency signal, realizing effective utilization of the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, without the need to additionally set other devices, reducing costs and the occupied area of the devices.

[0115] Please continue to refer to Figure 11 and Figure 12 , in some embodiments, the radio frequency system further includes an eighth filtering unit 505, a ninth filtering unit 506, and a tenth filtering unit 507 for connecting to an antenna.

[0116] Among them, the eighth filtering unit 505 is connected to the third receiving link RX3 through the low-noise input port 303 to form the twelfth receiving link RX12. The twelfth receiving link RX12 is used to support the reception of the first radio frequency signal. The twelfth receiving link RX12 at least includes the eighth filtering unit 505. The eighth filtering unit 505 is used to support the filtering process of the first radio frequency signal. Exemplarily, the eighth filtering unit 505 includes a surface acoustic wave filter. The eighth filtering unit 505 can be externally disposed with respect to the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0117] In an application, the first end of the eighth filtering unit 505 can be connected to the third antenna ANT3, and the second end of the eighth filtering unit 505 is connected to the low-noise amplification port. Then, the eighth filtering unit 505 can be used to support the filtering process of the first radio frequency signal received by the third antenna ANT3. The third low-noise amplification unit 103 can be used to support the low-noise amplification process of the first radio frequency signal filtered by the eighth filtering unit 505. Thus, the twelfth receiving link RX12 and the third receiving link RX3 can be jointly used to support the reception of the first radio frequency signal from the third antenna ANT3.

[0118] The ninth filtering unit 506 is connected to the seventh low-noise amplification unit 208 through the fourth auxiliary port 404 to form the thirteenth receiving link RX13. The thirteenth receiving link RX13 is used to support the reception of the first radio frequency signal. The thirteenth receiving link RX13 at least includes the ninth filtering unit 506. The ninth filtering unit 506 is used to support the filtering process of the first radio frequency signal. Exemplarily, the ninth filtering unit 506 includes a surface acoustic wave filter. The ninth filtering unit 506 can be externally disposed with respect to the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0119] In an application, the first end of the ninth filtering unit 506 can be connected to the seventh antenna ANT7, and the second end of the ninth filtering unit 506 is connected to the low-noise amplification port. Then, the ninth filtering unit 506 can be used to support the filtering process of the first radio frequency signal received by the seventh antenna ANT7. The seventh low-noise amplification unit 208 can be used to support the low-noise amplification process of the first radio frequency signal filtered by the ninth filtering unit 506. Thus, the thirteenth receiving link RX13 and the tenth receiving link RX10 can be jointly used to support the reception of the first radio frequency signal from the seventh antenna ANT7.

[0120] The tenth filtering unit 507 is connected to the seventh low-noise amplification unit 208 via the fifth auxiliary port 405 to form a fourteenth receiving link. The fourteenth receiving link is used to support the reception of the first radio frequency signal. The fourteenth receiving link includes at least the tenth filtering unit 507. The tenth filtering unit 507 is used to support the filtering process of the first radio frequency signal. Exemplarily, the tenth filtering unit 507 includes a surface acoustic wave filter. The tenth filtering unit 507 can be externally disposed with respect to the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0121] In an application, the first end of the tenth filtering unit 507 is connected to the eighth antenna ANT8, and the second end of the tenth filtering unit 507 is connected to the low-noise amplification port. Then, the tenth filtering unit 507 supports the filtering process of the first radio frequency signal received by the eighth antenna ANT8. The seventh low-noise amplification can be used to support the low-noise amplification process of the first radio frequency signal filtered by the tenth filtering unit 507. Thus, the fourteenth receiving link and the eleventh receiving link RX11 can be jointly used to support the reception of the first radio frequency signal from the eighth antenna ANT8.

[0122] The radio frequency system provided by the above embodiments can provide a twelfth receiving link RX12 through the externally disposed eighth filtering unit 505, so that the twelfth receiving link RX12 and the third receiving link RX3 can jointly support the reception of the first radio frequency signal from the same antenna. In addition, the radio frequency system can also provide a thirteenth receiving link RX13 through the externally disposed ninth filtering unit 506, so that the thirteenth receiving link RX13 and the tenth receiving link RX10 can jointly support the reception of the first radio frequency signal from the same antenna. Additionally, the radio frequency system can also provide a fourteenth receiving link through the externally disposed tenth filtering unit 507, so that the fourteenth receiving link and the eleventh receiving link RX11 can jointly support the reception of the first radio frequency signal from the same antenna. Furthermore, the radio frequency system can perform filtering processing and low-noise amplification processing on the first radio frequency signal received by each antenna, further improving the reception performance of the radio frequency system for the first radio frequency signal.

[0123] Please continue to refer to Figure 11 and Figure 12 , in some embodiments, the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the tenth receiving link RX10, the eleventh receiving link RX11, the twelfth receiving link RX12, the thirteenth receiving link RX13, and the fourteenth receiving link work simultaneously to support the six-way simultaneous reception of the first radio frequency signal.

[0124] For example, if the first radio frequency signal includes radio frequency signals in the B41 and / or n41 frequency bands, the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the tenth receiving link RX10, the eleventh receiving link RX11, the twelfth receiving link RX12, the thirteenth receiving link RX13, and the fourteenth receiving link work simultaneously, thereby supporting six-way simultaneous reception (6RX) of radio frequency signals in the B41 and / or n41 frequency bands.

[0125] Please continue to refer to Figure 11 and Figure 12 In some embodiments, the radio frequency system further includes a radio frequency transceiver 30. The first radio frequency front-end device 10 is further configured with a first low-noise output port 306, a second low-noise output port 307, and a third low-noise output port 308 respectively connected to the radio frequency transceiver 30. The second radio frequency front-end device 20 is further configured with a fourth output port 409, a fifth output port 410, and a sixth output port 411 connected to the radio frequency transceiver 30. Among them, the first low-noise amplification unit 101 is connected to the first low-noise output port 306, the second low-noise amplification unit 102 is connected to the second low-noise output port 307, the third low-noise amplification unit 103 is connected to the third low-noise output port 308, one output end of the seventh low-noise amplification unit 208 is connected to the fourth output port 409, another output end of the seventh low-noise amplification unit 208 is connected to the fifth output port 410, and yet another output end of the seventh low-noise amplification unit 208 is connected to the sixth output port 411.

[0126] Based on the above, in combination with Figure 11 and Figure 12 For the scenario where the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the tenth receiving link RX10, the eleventh receiving link RX11, the twelfth receiving link RX12, the thirteenth receiving link RX13, and the fourteenth receiving link work simultaneously, the six-way simultaneous reception of the first radio frequency signal is introduced below.

[0127] The first path of reception of the first radio frequency signal: The first receiving link RX1. The first radio frequency signal received by the first antenna ANT1 enters the first switching unit 106 through the first auxiliary port 301. The first radio frequency signal enters the first filtering unit 104 through the first switching unit 106, and after being filtered by the first filtering unit 104, it enters the first low-noise amplification unit 101. After being subjected to low-noise amplification processing by the first low-noise amplification unit 101, it is input into the radio frequency transceiver 30 through the first low-noise output port 306.

[0128] Second path reception of the first radio frequency signal: Second receiving link RX2. The first radio frequency signal received by the second antenna ANT2 enters the first switch unit 106 through the first antenna port 302, enters the second filtering unit 105 through the first switch unit 106, enters the second low-noise amplification unit 102 after being filtered by the second filtering unit 105, and after the second low-noise amplification unit 102 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the second low-noise output port 307.

[0129] Third path reception of the first radio frequency signal: Third receiving link RX3 and twelfth receiving link RX12. Among them, the third receiving link RX3 includes a low-noise input port 303, a third low-noise amplification unit 103, and a third low-noise output port 308. The twelfth receiving link RX12 includes an eighth filtering unit 505. In an application, the seventh antenna ANT7 is connected to the low-noise input port 303 through the eighth filtering unit 505. Then, the first radio frequency signal received by the seventh antenna ANT7 enters the third low-noise amplification unit 103 through the low-noise input port 303 after being filtered by the eighth filtering unit 505. After the third low-noise amplification unit 103 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the third low-noise output port 308.

[0130] Fourth path reception of the first radio frequency signal: Fourth receiving link RX4. The fourth receiving link RX4 includes a fourth antenna port 401, a fourth switch unit 206, a seventh filtering unit 207, a seventh low-noise amplification unit 208, and a fourth output port 409. In an application, the fourth antenna ANT4 can be connected to the fourth antenna port 401 through the second antenna port 304, the first switch unit 106, and the transceiver port 305. Then, the first radio frequency signal received by the fourth antenna ANT4 enters the first switch unit 106 through the second antenna port 304, enters the fourth switch unit 206 through the first switch unit 106, the transceiver port 305, and the fourth antenna port 401, enters the seventh filtering unit 207 through the fourth switch unit 206, and enters the seventh low-noise amplification unit 208 after being filtered by the seventh filtering unit 207. After the seventh low-noise amplification unit 208 performs low-noise amplification on the first radio frequency signal, it enters the radio frequency transceiver 30 through the fourth output port 409.

[0131] The fifth path of receiving the first radio frequency signal: the tenth receiving link RX10 and the thirteenth receiving link RX13. Among them, the tenth receiving link RX10 includes the fourth auxiliary port 404, the seventh low-noise amplification unit 208, and the fourth output port 409. The thirteenth receiving link RX13 includes the ninth filtering unit 506. In application, the seventh antenna ANT7 can be connected to the fourth auxiliary port 404 via the ninth filtering unit 506. Then, the first radio frequency signal received by the seventh antenna ANT7 enters the ninth filtering unit 506. After the ninth filtering unit 506 performs filtering processing on the first radio frequency signal, it enters the seventh low-noise amplification unit 208 via the fourth auxiliary port 404. After the seventh low-noise amplification unit 208 performs low-noise amplification processing on the first radio frequency signal, it enters the radio frequency transceiver 30 via the fifth output port 410.

[0132] The sixth path of receiving the first radio frequency signal: the eleventh receiving link RX11 and the fourteenth receiving link. Among them, the eleventh receiving link RX11 includes the fifth auxiliary port 405, the seventh low-noise amplification unit 208, and the fifth output port 410. The fourteenth receiving link includes the tenth filtering unit 507. In application, the eighth antenna ANT8 can be connected to the fifth auxiliary port 405 via the tenth filtering unit 507. Then, the first radio frequency signal received by the eighth antenna ANT8 enters the tenth filtering unit 507. After the tenth filtering unit 507 performs filtering processing on the first radio frequency signal, it enters the seventh low-noise amplification unit 208. After the seventh low-noise amplification unit 208 performs low-noise amplification processing on the first radio frequency signal, it enters the radio frequency transceiver 30 via the sixth output port 411.

[0133] Among them, the seventh low-noise amplification unit 208 may include at least three low-noise amplifiers. One of the low-noise amplifiers is respectively connected to the seventh filtering unit 207 and the fourth output port 409. Another low-noise amplifier is respectively connected to the ninth filtering unit 506 and the fifth output port 410. Another low-noise amplifier is respectively connected to the tenth filtering unit 507 and the sixth output port 411. The three low-noise amplifiers respectively support the low-noise amplification processing of the first radio frequency signal.

[0134] The above embodiment provides a radio frequency system, which realizes six-way simultaneous reception of the first radio frequency signal through the simultaneous operation of the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the tenth receiving link RX10, the eleventh receiving link RX11, the twelfth receiving link RX12, the thirteenth receiving link RX13 and the fourteenth receiving link, thereby improving the receiving performance of the radio frequency system for the first radio frequency signal and providing technical support for realizing 6G communication; and, the radio frequency system realizes effective utilization of the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, and three external filtering units are used to support six-way simultaneous reception of the first radio frequency signal, thereby reducing the cost and occupied area.

[0135] Please continue reading Figure 11 and Figure 12 In some embodiments, the twelfth receiving link RX12 further includes an eighth low noise amplifying unit 508, and the eighth low noise amplifying unit 508 is respectively connected to the low noise input port 303 and the eighth filtering unit 505. The eighth low noise amplifying unit 508 is used to support low noise amplification processing of the first RF signal. Exemplarily, the eighth low noise amplifying unit 508 includes a low noise amplifier.

[0136] In the application, the first RF signal received by the third antenna ANT3 is filtered by the eighth filtering unit 505 and then enters the eighth low-noise amplifying unit 508. After the eighth low-noise amplifying unit 508 performs low-noise amplification on the first RF signal, the first RF signal enters the third low-noise amplifying unit 103 through the low-noise input port 303. After the third low-noise amplifying unit 103 performs low-noise amplification on the first RF signal, the first RF signal is input into the RF transceiver 30 through the third low-noise output port 308. That is, after the first RF signal is subjected to a first-stage low-noise amplification by the eighth low-noise amplifying unit 508, it is subjected to a second-stage low-noise amplification by the third low-noise amplifying unit 103. Thus, through two-stage low-noise amplification, the first RF signal can be amplified more effectively, thereby improving the receiving sensitivity of the RF system.

[0137] The thirteenth receiving link RX13 further includes a ninth low noise amplifying unit 509, which is respectively connected to the fourth auxiliary port 404 and the ninth filtering unit 506. The ninth low noise amplifying unit 509 is used to support low noise amplification processing of the first RF signal. Exemplarily, the ninth low noise amplifying unit 509 includes a low noise amplifier.

[0138] In the application, the first radio frequency signal received by the seventh antenna ANT7 enters the ninth low-noise amplification unit 509 after being filtered by the ninth filtering unit 506. After the ninth low-noise amplification unit 509 performs low-noise amplification processing on the first radio frequency signal, the first radio frequency signal enters the seventh low-noise amplification unit 208 through the fourth auxiliary port 404. After the seventh low-noise amplification unit 208 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the third output port 408. That is, after the first radio frequency signal is subjected to primary low-noise amplification by the ninth low-noise amplification unit 509, it is then subjected to secondary low-noise amplification by the seventh low-noise amplification unit 208. In this way, through two-stage low-noise amplification, the first radio frequency signal can be amplified more effectively, thereby improving the receiving sensitivity of the radio frequency system.

[0139] The fourteenth receiving link further includes a tenth low-noise amplification unit 510, and the tenth low-noise amplification unit 510 is respectively connected to the fifth auxiliary port 405 and the tenth filtering unit 507. The tenth low-noise amplification unit 510 is used to support low-noise amplification processing of the first radio frequency signal. Exemplarily, the tenth low-noise amplification unit 510 includes a low-noise amplifier.

[0140] In the application, the first radio frequency signal received by the eighth antenna ANT8 enters the tenth low-noise amplification unit 510 after being filtered by the tenth filtering unit 507. After the tenth low-noise amplification unit 510 performs low-noise amplification processing on the first radio frequency signal, the first radio frequency signal enters the seventh low-noise amplification unit 208 through the fourth auxiliary port 404. After the seventh low-noise amplification unit 208 performs low-noise amplification processing on the first radio frequency signal, it is input into the radio frequency transceiver 30 through the third output port 408. That is, after the first radio frequency signal is subjected to primary low-noise amplification by the tenth low-noise amplification unit 510, it is then subjected to secondary low-noise amplification by the seventh low-noise amplification unit 208. In this way, through two-stage low-noise amplification, the first radio frequency signal can be amplified more effectively, thereby improving the receiving sensitivity of the radio frequency system.

[0141] Among them, the eighth filtering unit 505, the ninth filtering unit 506, the tenth filtering unit 507, the eighth low-noise amplification unit 508, the ninth low-noise amplification unit 509, and the tenth low-noise amplification unit 510 are externally disposed on the first radio frequency front-end device 10 and the second radio frequency front-end device 20.

[0142] The above embodiment provides a radio frequency system, which realizes six-way simultaneous reception of the first radio frequency signal through the simultaneous operation of the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, the fourth receiving link RX4, the tenth receiving link RX10, the eleventh receiving link RX11, the twelfth receiving link RX12, the thirteenth receiving link RX13 and the fourteenth receiving link, thereby improving the reception performance of the radio frequency system for the first radio frequency signal and providing technical support for realizing 6G communication; and, the radio frequency system realizes effective utilization of the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, and has three external low-noise amplification units and three filtering units, supporting six-way simultaneous reception of the first radio frequency signal, reducing the cost and occupied area, and three of the receptions support secondary low-noise amplification of the first radio frequency signal, improving the receiving sensitivity, and helping to improve the communication performance.

[0143] In some embodiments, Figure 7 As shown, the RF system includes two RF front-end modules 60, and each RF front-end module 60 includes a first RF front-end device 10 and a second RF front-end device 20. Among them, the first receiving link RX1, the second receiving link RX2 and the fourth receiving link RX4 in the two RF front-end modules 60 work simultaneously to support six-way simultaneous reception of the first RF signal. Among them, the specific introduction of the first RF front-end device 10 and the second RF front-end device 20 in each RF front-end module 60 can be found in the previous text and will not be repeated here. Exemplarily, the two RF front-end modules 60 include a first RF front-end module 601 and a second RF front-end module 602.

[0144] like Figure 13 As shown, the RF system may include two first antennas ANT1, two second antennas ANT2 and two fourth antennas ANT4. Among them, in the two RF front-end modules, each first auxiliary port 301 is connected to a first antenna ANT1, each first antenna port 302 is connected to a second antenna ANT2, and each second antenna port 304 is connected to a fourth antenna ANT4. In each RF front-end module 60, the first receiving link RX1 receives the first RF signal from the first antenna ANT1, the second receiving link RX2 receives the first RF signal from the second antenna ANT2, and the fourth receiving link RX4 receives the first RF signal from the fourth antenna ANT4; in this way, the six receiving links work simultaneously, realizing six-way simultaneous reception of the first RF signal such as the RF signal in the N41 and / or B41 frequency bands.

[0145] Among them, the first receiving link RX1, the second receiving link RX2 and the fourth receiving link RX4 in the two RF front-end modules 60 work simultaneously, supporting six-way simultaneous reception of the first RF signal. The signal path of each reception can be referred to in the above description. Figure 6The relevant description is not repeated here.

[0146] The RF system provided by the above embodiments provides at least two first receiving links RX1, two second receiving links RX2, and two fourth receiving links RX4 through the first RF front-end device 10 and the second RF front-end device 20 of the two RF front-end modules 60, thereby providing support for realizing the multi-path reception of the first RF signal. Based on this, the RF system realizes the six-path simultaneous reception of the first RF signal through the simultaneous operation of the first receiving link RX1, the second receiving link RX2, and the fourth receiving link RX4 in the two RF front-end modules 60. This RF system does not require external devices, reducing costs and occupied area.

[0147] Please continue to refer to Figure 5 、 Figure 6 、 Figures 8 to 13 In some embodiments, the first RF front-end device 10 further includes a power amplification unit 107 and a fifth switching unit 108. Among them, the first auxiliary port 301 is connected to the first low-noise amplification unit 101 through the first switching unit 106, the first filtering unit 104, and the fifth switching unit 108 to form the first receiving link RX1. The power amplification unit 107 is connected to the first switching unit 106 through the fifth switching unit 108 and the first filtering unit 104 to form a transmitting link. The transmitting link is used to support the transmission of the first RF signal. The transmitting link at least includes a power amplification unit 107, a fifth switching unit 108, a first filtering unit 104, and a first switching unit 106.

[0148] The output end of the power amplification unit 107 is connected to a first end of the fifth switching unit 108. The power amplification unit 107 is used to support the power amplification processing of the first RF signal. Another first end of the fifth switching unit 108 is connected to the first low-noise amplification unit 101, and the second end of the fifth switching unit 108 is connected to the first filtering unit 104. The fifth switching unit 108 is used to selectively conduct the paths between the power amplification unit 107, the first low-noise amplification unit 101 and the first filtering unit 104 respectively.

[0149] Exemplarily, the transmitting link includes a first transmitting link and a second transmitting link. Among them, the first transmitting link may include a power amplification unit 107, a fifth switching unit 108, a first filtering unit 104, a first switching unit 106, and a first antenna port 302. The second transmitting link may include a power amplification unit 107, a fifth switching unit 108, a first filtering unit 104, a first switching unit 106, and a second antenna port 304.

[0150] Please continue to refer to Figure 5 、 Figure 6 、 Figures 8 to 13, in some embodiments, the radio frequency system further includes a radio frequency transceiver 30, and the first radio frequency front-end device 10 is further configured with an input port 309. Wherein, the input end of the power amplification unit 107 is connected to the radio frequency transceiver 30 through the input port 309.

[0151] In an application, the first antenna port 302 is connected to the second antenna ANT2, and the second antenna port 304 is connected to the fourth antenna ANT4. Then, the first radio frequency signal enters the power amplification unit 107 from the radio frequency transceiver 30 through the input port 309. After the power amplification unit 107 amplifies the power of the first radio frequency signal, it enters the first filtering unit 104 through the fifth switching unit 108. After the first filtering unit 104 filters the first radio frequency signal, it enters the first antenna port 302 and the second antenna port 304 through the first switching unit 106. The first radio frequency signal flowing out of the first antenna port 302 is transmitted through the first antenna ANT1, and the first radio frequency signal flowing out of the second antenna port 304 is transmitted through the second antenna ANT2, thereby realizing the dual-path transmission of the first radio frequency signal.

[0152] Please continue to refer to Figure 5 、 Figure 6 、 Figures 8 to 13 , in some embodiments, the transmitting link and the first receiving link RX1 work in a time-sharing manner. That is, the radio frequency system operates in the TDD (Time Division Duplex) mode. In this way, the transmitting link and the first receiving link RX1 realize the multiplexing of the first filtering unit 104, and can support the multi-path reception of the first radio frequency signal through the first receiving link RX1 and other receiving links, improving the utilization rate of the internal devices of the first radio frequency front-end device 10, reducing the cost and occupied area, and improving the receiving performance of the system.

[0153] As Figure 5 、 Figure 6 、 Figure 11 and Figure 12 shown in the radio frequency system, the first transmitting link and the second transmitting link work simultaneously to support the dual-path transmission of the first radio frequency signal. The transmitting link (including the first transmitting link and the second transmitting link) and each receiving link work in a time-sharing manner to support the six-path simultaneous reception of the first radio frequency signal. In this way, the transceiver performance of the system is improved, and the number of external devices is small, the cost is low, and the occupied area is small.

[0154] As Figure 8 and Figure 9 formed by the radio frequency system, Figure 10 shown by the two radio frequency front-end modules 60 formed by the radio frequency system, and Figure 13 ​​​​​​​The RF system formed by the two RF front-end modules 60 shown. The transmit links in the two RF front-end modules 60 work simultaneously to support the four-way transmission of the second RF signal. In the two RF front-end modules 60, the transmit link and each receive link work in a time-division manner to support the six-way simultaneous reception of the first RF signal. In this way, the transceiver performance of the system is further improved, and the number of external devices is small, the cost is low, and the occupied area is small.

[0155] Please continue to refer to Figure 6 、 Figures 8 to 10 、 Figures 11 to 13 , in some embodiments, the RF system at least includes an RF transceiver 30, a first RF front-end device 10, a second RF front-end device 20, and six antennas. It should be noted that the unconnected ports in the figure all represent connections to the corresponding devices.

[0156] Among them, the first RF front-end device 10 and the second RF front-end device 20 can be respectively the seventh-generation RF front-end device Phase7 LE. For example, they can be RF front-end transmit chips. The first RF front-end device 10 can include multiple ports and multiple devices. Among them, the multiple ports can include a first antenna port 302, a second antenna port 304, a first auxiliary port 301, a low-noise input port 303, a transceiver port 305, a first low-noise output port 306, a second low-noise output port 307, a third low-noise output port 308, an input port 309, and can also include input ports MB_IN, SRS_IN, HB_LNA_IN1, MHB_LNA_IN1, MB_LNA_IN1, MB_LNA_IN2, TRx2, TRx3, and 2G_HB, as well as output ports LNA_OUT1 to LNA_OUT6, intermediate-frequency transmit output ports MB_Tx_OUT1 and MB_Tx_OUT2, and intermediate-frequency transceiver output port MB_TRx_OUT, and high-frequency output port HB_TX_OUT.

[0157] The multiple devices include a first low-noise amplification unit 101, a second low-noise amplification unit 102, a third low-noise amplification unit 103, a first filtering unit 104, a second filtering unit 105, a first switching unit 106, a power amplification unit 107, a fifth switching unit 108, and can also include other devices, such as switching devices, power amplifiers, low-noise amplifiers, duplexers, filters, impedance matching circuits, and coupling circuits, etc. It should be noted that through the high-frequency input port HB_IN and the input port SRS_IN, the RF system in the embodiments of the present application can achieve the dual transmission of 4G signals + 5G signals, that is, achieve dual connectivity (EUTRANR dual-connectivity, ENDC).

[0158] Among them, the input port 309 is respectively connected to the radio frequency transceiver 30, the power amplification unit 107, and the power amplifier B7 PA. The output end of the power amplification unit 107 is connected to a first end of the fifth switch unit 108, and the other first end of the fifth switch unit 108 is connected to the input port SRS_IN. The second end of the fifth switch unit 108 is at least connected to the first filtering unit 104. The power amplifier B7 PA is connected to the corresponding filter. Among them, the fifth switch unit 108 can be a multi-throw switch. The radio frequency signal in the high-frequency band can be transmitted through the input port 309, and the high-frequency band can include B7, B40, B41, n41, etc.

[0159] The intermediate frequency input port MB_IN is connected to one end of the intermediate frequency power amplifier MB PA, and the other end of the MB PA is connected to one end of the switching device. The switching device can be a single-throw switch. The radio frequency signal in the intermediate frequency band can be transmitted through the intermediate frequency input port MB_IN, and the intermediate frequency band can include B1, B3, B25, B34, and B39, etc. Multiple ports at the other end of the switching device can be connected to the corresponding filters. For example, the B1 port of the switching device can be connected to the duplexer in the B1 band. If the frequency band of the radio frequency signal provided by the first radio frequency transceiver 30 is not within the above intermediate frequency band range, and the first radio frequency front-end device 10 does not include the corresponding duplexer or filter, then the ports MB_Tx_Out1 and MB_Tx_Out2 can be selected to output to the corresponding duplexer or filter outside the first radio frequency front-end device 10 for processing, and then transmitted through the ports in the input ports TRx2 and TRx3.

[0160] The first radio frequency front-end device 10 further includes duplexers or filters corresponding to frequency bands such as B1, B3, B25, B34, B39, B7, B40, B41, n41, etc. Among them, the filter at least includes the devices in the aforementioned second filtering unit 105. The first radio frequency front-end device 10 further includes an impedance matching circuit, a switching device, a switching device, and a coupling circuit. The first filtering unit 104, the second filtering unit 105, and the transceiver port 305 in the first radio frequency front-end device 10 can be respectively connected to three first ends of the first switching unit 106 in one-to-one correspondence. Other filters or duplexers in the first radio frequency front-end device 10 can be connected to other first ends of the first switching unit 106 through the impedance matching circuit in one-to-one correspondence. Three second ends of the first switching unit 106 are respectively connected to the first auxiliary port 301, the first antenna port 302, and the second antenna port 304 in one-to-one correspondence. The impedance matching circuit can be used to tune the impedance of each radio frequency path. A coupling circuit is further included between the first antenna port 302 and the second antenna port 304 and the first switching unit 106. The coupling circuit can be used to detect the radio frequency signal output power of the first radio frequency front-end device 10. The first switching unit 106 is a double-pole five-throw DP5T switch. In order to expand the ports of the first switching unit 106, a switching device can also be connected in series. The switching device is a single-pole three-throw SP3T switch. Among them, the radio frequency input ports 2G_HB, TRx2, and TRx3 are respectively connected to the SP3T switch. The input port 2G_HB can be used to transmit signals in the 2G high-frequency band.

[0161] The first radio frequency front-end device 10 includes a first low-noise amplification unit 101, a second low-noise amplification unit 102, and a third low-noise amplification unit 103. It may further include another three low-noise amplification units. These low-noise amplification units may include low-noise power amplifiers LNA1 to LNA6 and a switching device. The switching device may be a six-input six-output switching device 6×6MUX. These low-noise amplifiers can be used to receive radio frequency signals in frequency bands such as B1, B3, B4, B25, B32, B34, B39, B7, B40, B41, B66, B75, B76, n41, etc.

[0162] The second radio frequency front-end device 20 includes multiple ports and multiple devices. Among them, the multiple ports may include a fourth antenna port 401, a second auxiliary port 402, a third auxiliary port 403, a fourth auxiliary port 404, a first output port 406, a second output port 407, a third output port 408, and a fourth output port 409. It may also include ports MHB_TRX1, MHB_TRX2, B40_AUX, B1_AUX, B3 / B25_AUX, B32_AUX, B41_AUX, LB_AUX1, LB_AUX2, LB_TRX1, LB_TRX2, VDD1P2, VIO, SDATD, SCLK, ID0, ID1, OUT1 to OUT4, LMHB_OUT, LB_OUT, LB_ANT.

[0163] The second radio frequency front-end device 20 includes a second switch unit 201, a third switch unit 202, a third filter unit 203, a fourth filter unit 204, and a fourth low-noise amplification unit 205. Among them, each switch unit may include a single-pole multi-throw switch, and each filter unit may include a filter; the second radio frequency front-end device 20 may also include switch devices, filters, RXBias (receive bias), and MIPI RFFE (Mobile Industry Processor Interface - Radio Frequency Front End) devices. Among them, the filter can be used to support the filtering process of radio frequency signals in frequency bands such as B40, B34, B1, B66, B2, B3, B39, B7, B41, B26, B8, B20, and B28.

[0164] The first radio frequency front-end device 10 and the second radio frequency front-end device 20 in the above radio frequency system can refer to the introduction of the foregoing related embodiments, which will not be elaborated here. It should be noted that in practical applications, the number of the first radio frequency front-end device 10 and the second radio frequency front-end device 20 in the radio frequency system can be set according to communication requirements, and a suitable receiving link can be selected to support the six-way simultaneous reception of the first radio frequency signal such as the B41 and n41 frequency bands.

[0165] The above radio frequency system can achieve six-way simultaneous reception by multiplexing the transmission link and the first receiving link RX1 of the first radio frequency front-end device 10 to the first filtering unit 104 and combining with the TDD working mode, which improves the utilization rate of the internal devices of the radio frequency front-end device, reduces the cost and area occupation caused by external devices, and achieves better performance and more optimized area. In addition, the radio frequency system also multiplexes the first radio frequency signal and the second radio frequency signal to the same filtering device by setting a switching device and an auxiliary port, further improving the utilization rate of the internal devices of the radio frequency front-end device and reducing the cost and area occupation caused by external devices.

[0166] Based on the same inventive concept, the embodiment of the present application further provides a communication device. The implementation solution for solving the problem provided by the communication device is similar to the implementation solution described in the above radio frequency system. Therefore, the specific limitations in one or more embodiments of the communication device provided below can refer to the limitations on the radio frequency system in the above text and will not be repeated here.

[0167] The communication device provided by the embodiment of the present application includes a radio frequency system. The radio frequency system includes a first radio frequency front-end device 10 and a second radio frequency front-end device 20. The first receiving link RX1 is provided through the first auxiliary port 301, the first switching unit 106, the first filtering unit 104, and the first low-noise amplification unit 101 in the first radio frequency front-end device 10. The second receiving link RX2 is provided through the first antenna port 302, the first switching unit 106, the second filtering unit 105, and the second low-noise amplification unit 102 in the first radio frequency front-end device 10. The third receiving link RX3 is provided through the low-noise input port 303 and the third low-noise amplification unit 103 in the first radio frequency front-end device 10. The fourth receiving link RX4 is provided through the second antenna port 304, the first switching unit 106, the transceiver port 305 in the first radio frequency front-end device 10, and the fourth antenna port 401 in the second radio frequency front-end device 20. Therefore, the multiplexed reception of the first radio frequency signal, that is, at least four-way reception, can be achieved through the first receiving link RX1, the second receiving link RX2, the third receiving link RX3, and the fourth receiving link RX4, improving the reception performance and effectively utilizing the internal devices of the first radio frequency front-end device 10 and the second radio frequency front-end device 20, reducing the cost and the occupied area of the devices.

[0168] As Figure 14 shown, further, taking the communication device as a mobile phone as an example for illustration. Specifically, as Figure 14As shown, the mobile phone 90 may include a memory 91 (which optionally includes one or more computer-readable storage media), a processing circuit 92, an input / output (I / O) subsystem 93, and an antenna device 94. These components optionally communicate via one or more communication buses or signal lines 95. Those skilled in the art can understand that Figure 14 the mobile phone 90 shown does not constitute a limitation on mobile phones and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Figure 14 The various components shown are implemented in hardware, software, or a combination of both hardware and software, including one or more signal processing and / or application specific integrated circuits.

[0169] The memory 91 optionally includes high-speed random access memory and also optionally includes non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state memory devices. Exemplarily, software components stored in the memory 91 include an operating system 911, a communication module (or instruction set) 912, a global positioning system (GPS) module (or instruction set) 913, etc.

[0170] The processing circuit 92 can be used to control the operation of the mobile phone 90. The processing circuit 92 can be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, etc.

[0171] Among them, the I / O subsystem 93 couples input / output peripheral devices on the mobile phone 90, such as a keypad and other input control devices, to the peripheral device interface. The I / O subsystem 93 optionally includes a touch screen, buttons, a tone generator, an accelerometer (motion sensor), an ambient light sensor and other sensors, light emitting diodes and other status indicators, data ports, etc. Exemplarily, a user can control the operation of the mobile phone 90 by supplying commands via the I / O subsystem 93, and can use the output resources of the I / O subsystem 93 to receive status information and other outputs from the mobile phone 90. For example, when the user presses the button 931, the mobile phone can be started or shut down.

[0172] In the description of this specification, the description referring to terms such as "some embodiments", "other embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0173] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0174] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A radio frequency system, characterized in that, At least including: A first radio frequency front-end device, which is at least configured with a transceiver port, a first antenna port, a second antenna port, a first auxiliary port, and a low-noise input port respectively used for connecting to an antenna, and at least includes a first low-noise amplification unit, a second low-noise amplification unit, a third low-noise amplification unit, a first filtering unit, a second filtering unit, and a first switching unit; wherein, The first auxiliary port is connected to the first low-noise amplification unit through the first switching unit and the first filtering unit to form a first receiving link; The first antenna port is connected to the second low-noise amplification unit through the first switching unit and the second filtering unit to form a second receiving link; The low-noise input port is connected to the third low-noise amplification unit to form a third receiving link; A second radio frequency front-end device, which is at least configured with a fourth antenna port for connecting to an antenna, and at least includes a fourth receiving link connected to the fourth antenna port; wherein, the second antenna port is connected to the fourth antenna port through the first switching unit, the transceiver port; The first receiving link, the second receiving link, the third receiving link, and the fourth receiving link are respectively used to support the reception of a first radio frequency signal.

2. The RF system according to claim 1, characterized in that, The second radio frequency front-end device is further configured with a second auxiliary port and a third auxiliary port for connecting to an antenna; the second radio frequency front-end device further includes a second switching unit, a third switching unit, a third filtering unit, a fourth filtering unit, and a fourth low-noise amplification unit; wherein, The second auxiliary port is connected to the fourth low-noise amplification unit through the second switching unit and the third filtering unit to form a fifth receiving link; the fifth receiving link is used to support the reception of the first radio frequency signal; The third auxiliary port is connected to the fourth low-noise amplification unit to form a sixth receiving link; the sixth receiving link is used to support the reception of the first radio frequency signal; The fourth antenna port is connected to the fourth low-noise amplification unit through the third switching unit and the fourth filtering unit to form the fourth receiving link.

3. The radio frequency system according to claim 2, characterized in that, The second antenna port is connected to the fourth low-noise amplification unit through the first switching unit, the transceiver port, the fourth antenna port, the third switching unit, the second switching unit, and the fourth filtering unit to form a seventh receiving link; the seventh receiving link is used to support the reception of a second radio frequency signal, and the second radio frequency signal has a different frequency band from the first radio frequency signal.

4. The RF system according to claim 2, wherein The radio frequency system further includes a fifth filtering unit and a sixth filtering unit for connecting to an antenna; wherein, The fifth filtering unit is connected to the third receiving link through the low-noise input port to form an eighth receiving link; the eighth receiving link is used to support the reception of the first radio frequency signal; The sixth filtering unit is connected to the sixth receiving link through the third auxiliary port to form a ninth receiving link; the ninth receiving link is used to support the reception of the first radio frequency signal.

5. The radio frequency system according to claim 4, wherein The first receiving link, the second receiving link, the third receiving link, the fourth receiving link, the fifth receiving link, the sixth receiving link, the eighth receiving link, and the ninth receiving link work simultaneously to support six-way simultaneous reception of the first radio frequency signal.

6. The radio frequency system according to claim 4, characterized in that The eighth receiving link further includes a fifth low-noise amplification unit, and the fifth low-noise amplification unit is respectively connected to the low-noise input port and the fifth filtering unit; The ninth receiving link further includes a sixth low-noise amplification unit, and the sixth low-noise amplification unit is respectively connected to the third auxiliary port and the sixth filtering unit; wherein, The fifth filtering unit, the sixth filtering unit, the fifth low-noise amplification unit, and the sixth low-noise amplification unit are respectively externally disposed on the first radio frequency front-end device and the second radio frequency front-end device.

7. The radio frequency system according to claim 2, characterized in that, The radio frequency system includes two radio frequency front-end modules, and each radio frequency front-end module includes the first radio frequency front-end device and the second radio frequency front-end device; wherein, The first receiving link in any one of the radio frequency front-end modules, the second receiving links in the two radio frequency front-end modules, the fourth receiving links in the two radio frequency front-end modules, and the fifth receiving link in any one of the radio frequency front-end modules work simultaneously to support six-way simultaneous reception of the first radio frequency signal.

8. The radio frequency system according to claim 2, wherein The radio frequency system includes two radio frequency front-end modules, and each radio frequency front-end module includes the first radio frequency front-end device and the second radio frequency front-end device; wherein, The second receiving links, the fourth receiving links, and the fifth receiving links in the two radio frequency front-end modules work simultaneously to support six-way simultaneous reception of the first radio frequency signal.

9. The RF system according to claim 1, wherein The second radio frequency front-end device is further configured with a fourth auxiliary port and a fifth auxiliary port for connecting to an antenna; the second radio frequency front-end device further includes a fourth switching unit, a seventh filtering unit, and a seventh low-noise amplification unit; wherein, The fourth auxiliary port is connected to the seventh low-noise amplification unit to form a tenth receiving link; the tenth receiving link is used to support the reception of the first radio frequency signal; The fifth auxiliary port is connected to the seventh low-noise amplification unit to form an eleventh receiving link; the eleventh receiving link is used to support the reception of the first radio frequency signal; The fourth antenna port is connected to the seventh low-noise amplification unit through the fourth switching unit and the seventh filtering unit to form the fourth receiving link.

10. The radio frequency system according to claim 9, wherein The radio frequency system further includes an eighth filtering unit, a ninth filtering unit, and a tenth filtering unit for connecting to an antenna; wherein, The eighth filtering unit is connected to the third receiving link through the low-noise input port to form a twelfth receiving link; The ninth filtering unit is connected to the seventh low-noise amplification unit through the fourth auxiliary port to form a thirteenth receiving link; The tenth filtering unit is connected to the seventh low-noise amplification unit through the fifth auxiliary port to form a fourteenth receiving link; The twelfth receiving link, the thirteenth receiving link, and the fourteenth receiving link are respectively used to support the reception of the first radio frequency signal.

11. The radio frequency system according to claim 10, characterized in that, The first receiving link, the second receiving link, the third receiving link, the fourth receiving link, the tenth receiving link, the eleventh receiving link, the twelfth receiving link, the thirteenth receiving link, and the fourteenth receiving link work simultaneously to support the six-way simultaneous reception of the first radio frequency signal.

12. The radio frequency system according to claim 10, characterized in that, The twelfth receiving link further includes an eighth low-noise amplification unit, and the eighth low-noise amplification unit is respectively connected to the low-noise input port and the eighth filtering unit; The thirteenth receiving link further includes a ninth low-noise amplification unit, and the ninth low-noise amplification unit is respectively connected to the fourth auxiliary port and the ninth filtering unit; The fourteenth receiving link further includes a tenth low-noise amplification unit, and the tenth low-noise amplification unit is respectively connected to the fifth auxiliary port and the tenth filtering unit; wherein, The eighth filtering unit, the ninth filtering unit, the tenth filtering unit, the eighth low-noise amplification unit, the ninth low-noise amplification unit, and the tenth low-noise amplification unit are externally disposed to the first radio frequency front-end device and the second radio frequency front-end device.

13. The radio frequency system according to claim 1, wherein The radio frequency system includes two radio frequency front-end modules, and each radio frequency front-end module includes the first radio frequency front-end device and the second radio frequency front-end device; wherein, The first receiving link, the second receiving link, and the fourth receiving link in the two radio frequency front-end modules work simultaneously to support the six-way simultaneous reception of the first radio frequency signal.

14. The radio frequency system according to any one of claims 1-13, characterized in that, The first radio frequency front-end device further includes a power amplification unit and a fifth switching unit; wherein, The first auxiliary port is connected to the first low-noise amplification unit through the first switching unit, the first filtering unit, and the fifth switching unit to form the first receiving link; The power amplification unit is connected to the first switching unit through the fifth switching unit and the first filtering unit to form a transmission link; the transmission link is used to support the transmission of the first radio frequency signal.

15. A communication device, characterized in that, The communication device includes the radio frequency system according to any one of claims 1-14.

Images