Radio frequency channel circuit, radio frequency circuit and electronic equipment

Abstract

The present application discloses a radio frequency channel circuit, a radio frequency circuit and an electronic device, wherein the radio frequency channel circuit comprises: a first radio frequency channel circuit, comprising a first signal port, a second signal port and a first filtering subcircuit; a second radio frequency channel circuit, comprising a third signal port, a fourth signal port, a multi-way selection switch subcircuit, a second filtering subcircuit and a channel detection auxiliary port, wherein the multi-way selection switch subcircuit comprises a first connection terminal and at least two second connection terminals, and the second filtering subcircuit and the channel detection auxiliary port are respectively coupled to a second connection terminal; wherein the first signal port and the channel detection auxiliary port correspond to different signal frequency bands, and the first connection terminal can be selectively coupled to one of the second connection terminals or left floating. Through the above-mentioned method, the radio frequency channel circuit in the present application effectively improves the device integration, occupies a small space, has a low manufacturing cost, and effectively reduces the data throughput rate while realizing the SRS function.

Description

Technical Field

[0001] The present application relates to the field of electronic communication technology, and in particular to a radio frequency channel circuit, a radio frequency circuit and an electronic device. Background Art

[0002] With the popularization of 4G (fourth generation mobile communication technology) and 5G (fifth generation mobile communication technology), and the application of large data traffic such as short videos, the mid- and high-band communications of smart terminal devices generally need to support 4RX (Receive) channels to meet the increasingly high data traffic requirements; and in 5G applications, high-band communications are required to support SRS (Sounding Reference Signal) functions so that the communication base station system can better schedule and allocate resources.

[0003] However, the existing terminal RF circuit is usually implemented through a full separation solution of several RX filters + several RX switches + TX (Transmit) switches (supporting SRS function) + frequency combiner, resulting in the problem that the device occupies a large circuit board space, the workload of RF matching multi-debugging and verification is large, and multiple control signals need to be occupied. Summary of the invention

[0004] The present application provides a radio frequency channel circuit, a radio frequency circuit and an electronic device. The radio frequency channel circuit can solve the problems in the prior art that the terminal radio frequency circuit has large components occupying a large circuit board space, a large workload for radio frequency matching multi-debugging and verification, and needs to occupy multiple control signals.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is: to provide a radio frequency channel circuit, wherein the radio frequency channel circuit includes: a first radio frequency channel circuit, including a first signal port, a second signal port and a first filtering subcircuit, the first signal port is coupled to the first filtering subcircuit and is used to couple with the signal transceiver circuit, the second signal port is coupled to the first filtering subcircuit and is used to couple with the signal amplification circuit; a second radio frequency channel circuit, including a third signal port, a fourth signal port, a multi-way selection switch subcircuit, a second filtering subcircuit and a channel detection auxiliary port, the multi-way selection switch subcircuit includes a first connection end and at least two second connection ends, the third signal port is coupled to the first connection end and is used to couple with the signal transceiver circuit, the fourth signal port is coupled to the second filtering subcircuit and is used to couple with the signal amplification circuit, the second filtering subcircuit and the channel detection auxiliary port are respectively coupled to a second connection end; wherein the first signal port and the channel detection auxiliary port correspond to different signal frequency bands, and the first connection end can be selectively coupled to one of the second connection ends or left floating.

[0006] The first signal port and the third signal port correspond to different signal frequency bands.

[0007] The first signal port corresponds to an intermediate frequency signal, and the third signal port corresponds to a high frequency signal.

[0008] Among them, the number of second signal ports is at least two, the number of fourth signal ports is the same as that of second filtering sub-circuits and is at least two, each fourth signal port is coupled to a second filtering sub-circuit, each second filtering sub-circuit is coupled to a second connection end, different second signal ports correspond to different signal frequency bands, different fourth signal ports correspond to different signal frequency bands and are different from the second signal ports.

[0009] Among them, the radio frequency channel circuit also includes a control circuit, which is coupled to the multi-way selection switch sub-circuit and is used to couple with the signal processing circuit. The control circuit receives a switch control signal sent by the signal processing circuit, and controls the multi-way selection switch sub-circuit to selectively couple the first connection end to one of the second connection ends or leave it floating in response to the switch control signal.

[0010] Among them, the switching time of the multi-way selection switch subcircuit is less than 2 microseconds.

[0011] In order to solve the above-mentioned technical problems, another technical solution adopted in the present application is: to provide a radio frequency circuit, wherein the radio frequency circuit includes a signal transceiver circuit, a radio frequency channel circuit and a signal amplification circuit, and the radio frequency channel circuit is coupled between the signal transceiver circuit and the signal amplification circuit; wherein the radio frequency channel circuit is the radio frequency channel circuit as described above.

[0012] Among them, the RF channel circuit includes a first RF channel circuit and a second RF channel circuit, the first RF channel circuit includes a first signal port and a second signal port, and the second RF channel circuit includes a third signal port and a fourth signal port; the signal transceiver circuit includes a first antenna and a second antenna, the first antenna is coupled to the first signal port, and the second antenna is coupled to the third signal port; the signal amplification circuit includes a first amplifier, a second amplifier, a third amplifier and a gating switch sub-circuit, the gating switch sub-circuit includes a first signal connection terminal and at least two second signal connection terminals, the first amplifier and the second amplifier are respectively coupled to a second signal port, each second signal connection terminal is coupled to a fourth signal port, the first signal connection terminal is coupled to the third amplifier, and can be selectively coupled to one of the second signal connection terminals or left floating.

[0013] The signal transceiver circuit includes a frequency divider and a third antenna, and the frequency divider is coupled to the third antenna, the first signal port and the third signal port.

[0014] To solve the above technical problems, another technical solution adopted in the present application is: to provide an electronic device, wherein the electronic device includes a shell and a signal function circuit connected to each other; wherein the signal function circuit is a radio frequency channel circuit as described in any of the above items, or a radio frequency circuit as described above.

[0015] The beneficial effects of the present application are as follows: Different from the prior art, the first RF channel circuit in the RF channel circuit provided by the present application includes a first signal port, a second signal port and a first filtering subcircuit, the first signal port is coupled to the first filtering subcircuit and is used to couple with the signal transceiver circuit, the second signal port is coupled to the first filtering subcircuit and is used to couple with the signal amplification circuit; the second RF channel circuit includes a third signal port, a fourth signal port, a multi-way selection switch subcircuit, a second filtering subcircuit and a channel detection auxiliary port, the multi-way selection switch subcircuit includes a first connection end and at least two second connection ends, the third signal port is coupled to the first connection end and is used to couple with the signal transceiver circuit, the fourth signal port is coupled to the second filtering subcircuit and is used to couple with the signal amplification circuit, the second filtering subcircuit and the channel detection auxiliary port are respectively coupled to a second connection end, thereby achieving high The integration of various circuit functional units, especially the channel detection auxiliary port for realizing the SRS function, effectively improves the integration of the device, occupies relatively small space on the corresponding circuit board, has low manufacturing cost, and has small workload for RF matching debugging and verification, and effectively reduces the number of occupied control signals, so as to match different market demands and eliminate the cost of redundant devices. It can also support the current global mainstream market applications, has good versatility and low scale application cost. In addition, the first signal port and the channel detection auxiliary port correspond to different signal frequency bands, and the first connection end can be selectively coupled to one of the second connection ends or left floating, so that the signal frequency band corresponding to the first signal port can be separated from the SRS function corresponding to the channel detection auxiliary port, so as to effectively avoid interrupting the signal transmission corresponding to the first signal port when the SRS function is turned on, thereby effectively reducing the data throughput rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a structural schematic diagram of a first implementation mode of a radio frequency channel circuit of the present application; Figure 2 It is a structural schematic diagram of a second implementation mode of the radio frequency channel circuit of the present application; Figure 3It is a structural schematic diagram of the first embodiment of the radio frequency circuit of the present application; Figure 4 It is a structural schematic diagram of a second embodiment of the radio frequency circuit of the present application; Figure 5 It is a structural schematic diagram of a third embodiment of the radio frequency circuit of the present application; Figure 6 It is a schematic structural diagram of an embodiment of an electronic device of the present application. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0018] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the implementation mode of this application are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0019] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0020] The present application is described in detail below with reference to the accompanying drawings and implementation methods.

[0021] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of the first embodiment of the radio frequency channel circuit of the present application. In this embodiment, the radio frequency channel circuit 10 includes: a first radio frequency channel circuit 11 and a second radio frequency channel circuit 12.

[0022] Among them, a radio frequency channel circuit 10 provided in the present application is specifically applied to any reasonable electronic device with signal communication needs, such as mobile phones, tablet computers, electronic watches or surveillance cameras, so that the electronic device can use the radio frequency channel circuit 10 to correspond to an external communication base station and / or any other reasonable electronic device to achieve signal communication.

[0023] Specifically, the first RF channel circuit 11 further includes a first signal port 111, a second signal port 112 and a first filtering subcircuit 113. The first signal port 111 is coupled to the first filtering subcircuit 113 and is used to couple with the signal transceiver circuit 101, receive signals from the signal transceiver circuit 101, and transmit these signals to the first filtering subcircuit 113 for processing.

[0024] The second signal port 112 is coupled to the first filtering sub-circuit 113 and is used to couple to the signal amplifying circuit 102 to transmit the signal processed by the first filtering sub-circuit 113 to the signal amplifying circuit 102 for amplification.

[0025] It can be seen that the first filtering subcircuit 113 is specifically coupled to the first signal port 111 and the second signal port 112 to filter the signal received from the first signal port 111 to remove unnecessary frequency components, and then transmit the processed signal to the second signal port 112 .

[0026] It can be understood that the signal transceiver circuit 101 receives radio frequency signals through an antenna or other RF (Radio Frequency) front-end module, and transmits these signals to the first filtering sub-circuit 113 through the first signal port 111. The first filtering sub-circuit 113 filters the received signals to remove unnecessary frequency components and retain the signals within the required frequency bandwidth. The filtered signals are transmitted to the signal amplification circuit 102 through the second signal port 112. The signal amplification circuit 102 amplifies the received signals to meet the needs of subsequent processing or transmission.

[0027] Furthermore, the second RF channel circuit 12 specifically includes a third signal port 121, a fourth signal port 122, a multi-way selection switch sub-circuit 123, a second filtering sub-circuit 124 and a channel detection auxiliary port 125, wherein the third signal port 121 is coupled to the first connection end of the multi-way selection switch sub-circuit 123, and is used to couple with the signal transceiver circuit 101 to receive signals from the signal transceiver circuit 101 and transmit these signals to the multi-way selection switch sub-circuit 123; the fourth signal port 122 is coupled to the second filtering sub-circuit 124, and is used to couple with the signal amplification circuit 102 to transmit the signal processed by the second filtering sub-circuit 124 to the signal amplification circuit 102 for amplification processing.

[0028] The multi-way selection switch sub-circuit 123 further includes a first connection end and at least two second connection ends, and the first connection end can be selectively coupled to one of the second connection ends or left floating, so as to selectively transmit the signal received from the third signal port 121 to the second filtering sub-circuit 124 or the channel detection auxiliary port 125, or not transmit the signal received from the third signal port 121.

[0029] The second filtering subcircuit 124 is coupled to a second connection terminal of the multi-way selection switch subcircuit 123 and to the fourth signal port 122 to filter the signal received from the multi-way selection switch subcircuit 123 to remove unnecessary frequency components, and then transmit the processed signal to the fourth signal port 122.

[0030] The channel detection auxiliary port 125 is coupled to a second connection end of the multi-way selection switch sub-circuit 123 to implement the SRS function, that is, in wireless communication, it is used to estimate the uplink channel frequency domain information and perform frequency selective scheduling, and to estimate the downlink channel and perform downlink beamforming.

[0031] It is understandable that the signal transceiver circuit 101 receives radio frequency signals through an antenna or other RF front-end module, and transmits these signals to the multi-way selection switch sub-circuit 123 through the third signal port 121. The multi-way selection switch sub-circuit 123 selectively couples its first connection end with one of the second connection ends according to the control signal sent by the system, that is, in response to the communication needs of the electronic device, so as to transmit the signal to the second filtering sub-circuit 124 or the channel detection auxiliary port 125.

[0032] When the SRS function needs to be implemented, the multi-way selection switch sub-circuit 123 transmits the signal to the channel detection auxiliary port 125 ; and when normal signal processing is required, the multi-way selection switch sub-circuit 123 transmits the signal to the second filtering sub-circuit 124 .

[0033] The second filtering subcircuit 124 is used to filter the received signal, remove unnecessary frequency components, and retain the signal within the required frequency bandwidth. The signal amplification circuit 102 transmits the filtered signal to the signal amplification circuit 102 through the fourth signal port 122, and the signal amplification circuit 102 amplifies the received signal to meet the needs of subsequent processing or transmission.

[0034] Among them, the first signal port 111 and the channel detection auxiliary port 125 correspond to different signal frequency bands, that is, the path frequency band and frequency range of the first signal port 111 are different from the signal frequency band supported by the channel detection auxiliary port 125. The signal transmitted through the first signal port 111 and the signal transmitted through the channel detection auxiliary port 125 are independent of each other and belong to different signal transmission channels. When the SRS function corresponding to the channel detection auxiliary port 125 is turned on, there is no need to interrupt the signal transmission realized by the first signal port 111, so that the signal frequency band supported by the first signal port 111 can be reasonably set, thereby effectively reducing the data throughput caused by turning on the SRS function.

[0035] It is worth noting that the term "coupled" in this article refers to any direct and indirect connection means. Therefore, if the first circuit is described as being coupled to the second circuit, it means that the first circuit can be directly connected to the second circuit through electrical connection or signal connection methods such as wireless transmission, optical transmission, etc., or can be indirectly connected to the second circuit through other circuits or connection means.

[0036] The above scheme effectively improves the device integration by highly integrating various circuit functional units, especially the channel detection auxiliary port 125 for realizing the SRS function, occupies relatively small space on the corresponding circuit board, has low manufacturing cost, and has small workload for RF matching debugging and verification, and effectively reduces the number of occupied control signals, can match different market demands, and eliminate the cost of redundant devices, and can also support the current global mainstream market applications, with good versatility and low large-scale application cost; in addition, the first signal port 111 and the channel detection auxiliary port 125 correspond to different signal frequency bands, and the first connection end can be selectively coupled to one of the second connection ends or left floating, so that the signal frequency band corresponding to the first signal port 111 can be separated from the SRS function corresponding to the channel detection auxiliary port 125, so as to effectively avoid interrupting the signal transmission corresponding to the first signal port 111 when the SRS function is turned on, thereby effectively reducing the data throughput rate.

[0037] In some embodiments, the first signal port 111 and the third signal port 121 correspond to different signal frequency bands respectively to form two independent signal transmission channels that support different signal frequency bands to meet the communication needs of a wider range of signal frequency bands, and effectively reduce the data throughput rate by independently setting signal transmission channels of different signal frequency bands.

[0038] In some embodiments, the first signal port 111 and the third signal port 121 respectively correspond to supported signal frequency bands, which may specifically be any two of a low-frequency signal, an intermediate-frequency signal, and a high-frequency signal, and preferably, the first signal port 111 corresponds to an intermediate-frequency signal, and the third signal port 121 corresponds to a high-frequency signal, so as to be able to synchronously support signal transmission of intermediate-frequency signals and high-frequency signals, which is not limited in the present application.

[0039] It is worth noting that the signal frequency band supported by the channel detection auxiliary port 125 is specifically a high-frequency signal, and the communication requirements that the RF channel circuit 10 is intended to achieve are usually intermediate frequency signals with a large amount of data. By independently setting the signal transmission channels of the intermediate frequency signal and the high-frequency signal, the data throughput rate can be effectively reduced, and it also ensures that the signal transmission of other high-frequency signals does not interfere with the transmission of the intermediate frequency signal.

[0040] In one embodiment, the RF channel circuit 10 specifically also includes a control circuit, which is coupled to the multi-way selection switch sub-circuit 123 and is used to couple with the signal processing circuit, wherein the signal processing circuit can be specifically understood as a central processor in a communication terminal device that integrates the RF channel circuit 10, and is used to generate a switch control signal according to current communication requirements to indicate the connection status of the multi-way selection switch sub-circuit 123.

[0041] The control circuit is used to receive the switch control signal sent by the signal processing circuit, and control the connection state of the multi-way selection switch sub-circuit 123 according to the switch control signal, that is, to control the multi-way selection switch sub-circuit 123 to selectively couple the first connection end to one of the second connection ends or to leave it suspended according to the instruction of the control circuit, so as to realize selective processing and amplification of the radio frequency signal and have the SRS function.

[0042] In some embodiments, the switching time of the multi-way selection switch subcircuit 123 is less than 2 microseconds, so as to effectively support the implementation of the SRS signal path when connected to the channel detection auxiliary port 125.

[0043] It is understandable that the above scheme, by setting up signal transmission channels separately for intermediate frequency signals and high frequency signals, can be compatible with the scheme of sharing signal transmission channels of related products, and is flexible in application; and by setting up a channel detection auxiliary port 125 to support the SRS function, it also effectively avoids the problem of an external switch affecting data throughput, and has higher integration and occupies less space.

[0044] See also Figure 2 , Figure 2 1 is a schematic diagram of the structure of the second embodiment of the RF channel circuit of the present application. This embodiment is based on the first embodiment of the RF channel circuit provided in the present application, and the number of the second signal ports 212 in the first RF channel circuit 21 of the RF channel circuit 20 is at least two, and the number of the fourth signal ports 222 in the second RF channel circuit 22 is the same as the number of the second filter subcircuit 224, and is at least two.

[0045] It is understandable that in order to meet the communication needs of various signal frequency bands in the general market, to support the current global mainstream market applications, to further improve versatility and reduce the cost of large-scale applications, the number of the second signal ports 212 can be at least two, and the number of the fourth signal ports 222 can be at least two.

[0046] Among them, each fourth signal port 222 is coupled to a second filtering sub-circuit 224, each second filtering sub-circuit 224 is coupled to a second connection end, different second signal ports 212 correspond to supporting different signal frequency bands; and different fourth signal ports 222 correspond to different signal frequency bands, and are different from the signal frequency bands supported by the second signal ports 212.

[0047] In some embodiments, the second signal port 212 may specifically include a signal port Bx1 and a signal port Bx2, the fourth signal port 222 may specifically include a signal port Bx3, a signal port Bx4 and a signal port Bx5, and the channel detection auxiliary port 125 may specifically include an auxiliary interface AUX (Auxiliary interface). The signal port Bx1, the signal port Bx2, the signal port Bx3, the signal port Bx4 and the signal port Bx5 are respectively used to support communication requirements of different signal frequency bands; the first signal port 211 is an intermediate frequency signal port MB, the third signal port 221 is a high frequency signal port HB, and the first filtering subcircuit 213 supports two frequency bands to work simultaneously; the auxiliary interface AUX is used to implement the SRS function.

[0048] For ease of understanding, taking the first solution in which the second signal port 212 specifically includes signal port B1 and signal port B3, and the fourth signal port 222 specifically includes signal port B7, signal port B40 and signal port B41 as an example, it can be seen that the signal port B1, signal port B3, signal port B7, signal port B40 and signal port B41 are respectively used to support communication requirements of different signal frequency bands, and please refer to the following working frequency band distribution table for details.

[0049] In other embodiments, in the second scheme, the second signal port 212 may further include a signal port B25 / 70 and a signal port B66, and the fourth signal port 222 may further include a signal port B7, a signal port B40 and a signal port B41, wherein the first scheme and the second scheme may specifically correspond to different regions and application scenarios, and the product port designs are compatible with each other so as to be able to support different frequency bands on the same circuit board; the signal port B1 and the signal port B3 in the first scheme are respectively compatible with the signal port B66 and the signal port B25 / 70 in the second scheme.

[0050] The frequency band filtering modules corresponding to the signal ports B1 and B3 in the first solution and the signal ports B25 / 70 and B66 in the second solution, that is, the first filtering subcircuit 213, both include dual-mode surface acoustic wave filters, and two frequency bands can work simultaneously.

[0051] The channel frequency of signal port B66 in the second solution covers signal port B1, that is, the second solution can also support signal port B1, increasing the roaming frequency band performance without increasing the cost; the filtering of signal port B25 / 70 in the second solution supports the frequency range of 1930~2020MHz, and can simultaneously support three frequency bands of signal port B2 and signal port B25 / 70; the signal port B30 / 40 in the second solution shares the same set of filtering modules, that is, the second filtering sub-circuit 224, and the internal performance of the two sets of frequency band solutions has been optimized and called through the control circuit configuration.

[0052] The channel detection auxiliary port 225 supports high frequency TX HPUE (Transmit High Power User Equipment) signals and supports SRS signal paths.

[0053] It is understandable that the two product solutions designed through the above-mentioned first and second solutions can match different market demands and remove redundant devices at a low cost; the two solutions are fully compatible and can be applied on the same circuit board with low development costs; and can support current global mainstream market applications with good versatility and low large-scale application costs; and can also solve the current problem of SRS affecting throughput in RF modules; and have the advantages of low cost, high integration, and compatible applications on common circuit boards in the mainstream market.

[0054] In other embodiments, the signal port Bx1, the signal port Bx2, the signal port Bx3, the signal port Bx4 and the signal port Bx5 may also support any other reasonable signal frequency band combination, which is not limited in the present application.

[0055]

[0056] It is understandable that, in this embodiment, the first signal port 211, the third signal port 221, the first filter subcircuit 213, the multi-way selection switch subcircuit 223 and the second filter subcircuit 224 are respectively the same as the first signal port 111, the third signal port 121, the first filter subcircuit 113, the multi-way selection switch subcircuit 123 and the second filter subcircuit 124. For details, please refer to Figure 1 And the related text content will not be repeated here.

[0057] This application also specifically uses a radio frequency circuit, see Figure 3 , Figure 3 3 is a schematic diagram of the structure of the first embodiment of the radio frequency circuit of the present application. In this embodiment, the radio frequency circuit 30 includes a signal transceiver circuit 31, a radio frequency channel circuit 32 and a signal amplifier circuit 33.

[0058] The RF channel circuit 32 is coupled between the signal transceiver circuit 31 and the signal amplification circuit 33 .

[0059] It should be noted that the RF channel circuit 32 described in this embodiment is the RF channel circuit 10 or the RF channel circuit 20 described in any one of the above embodiments. Figure 1 and Figure 2 And the related text content will not be repeated here.

[0060] See also Figure 4 , Figure 4 This embodiment is based on the first embodiment of the radio frequency circuit provided in the present application, and the signal transceiver circuit 41 in the radio frequency circuit 40 further includes a first antenna 411 and a second antenna 412 .

[0061] Among them, the RF channel circuit 42 includes a first RF channel circuit 421 and a second RF channel circuit 422, the first RF channel circuit 421 further includes a first signal port 4211 and a second signal port 4212, and the number of the second signal ports 4212 is two; the second RF channel circuit 422 further includes a third signal port 4221, a fourth signal port 4222, and a channel detection auxiliary port 4225, the number of the fourth signal port 4222 is three, and the channel detection auxiliary port 4225 is used to receive a channel detection reference signal N41 SRS for realizing the SRS function; the first antenna 411 is coupled to the first signal port 4211, and the second antenna 412 is coupled to the third signal port 4221.

[0062] In some embodiments, the signal amplifying circuit 43 further includes a first amplifier 431, a second amplifier 432, a third amplifier 433 and a selection switch sub-circuit 434, the selection switch sub-circuit 434 includes a first signal connection terminal 4341 and at least two second signal connection terminals 4342, the first amplifier 431 and the second amplifier 432 are respectively coupled to a second signal port 4212, each second signal connection terminal 4342 is coupled to a fourth signal port 4222, the first signal connection terminal 4341 is coupled to the third amplifier 433, and can be selectively coupled to one of the second signal connection terminals 4342 or left floating.

[0063] It is understandable that, in this embodiment, the RF channel circuit 42 is the same as the RF channel circuit 32. For details, please refer to Figure 3 And the related text content will not be repeated here.

[0064] See also Figure 5 , Figure 5 The difference between this embodiment and the second embodiment of the radio frequency circuit provided in this application is that the signal transceiver circuit 51 in the radio frequency circuit 50 may further include a frequency divider 511 and a third antenna 512 .

[0065] The RF channel circuit 52 includes a first signal port 5211 and a third signal port 5221 , and the frequency divider 511 is coupled to the third antenna 512 , the first signal port 5211 , and the third signal port 5221 .

[0066] It is understandable that, in this embodiment, the RF channel circuit 52 and the signal amplifying circuit 53 are respectively the same as the RF channel circuit 42 and the signal amplifying circuit 43. For details, please refer to Figure 4 And the related text content will not be repeated here.

[0067] This application also specifically uses an electronic device, see Figure 6 , Figure 6 Schematic diagram of the framework of an electronic device of the present application. In this embodiment, the electronic device 50 includes a housing 61 and a signal function circuit 62 connected to the housing 61 .

[0068] It should be noted that the signal function circuit 62 described in this embodiment is the RF channel circuit 10 or the RF channel circuit 20 described in any one of the above embodiments, or any one of the RF circuit 30, RF circuit 40, and RF circuit 50. Figure 1-Figure 5 And the related text content will not be repeated here.

[0069] Different from the prior art, the first RF channel circuit in the RF channel circuit provided by the present application includes a first signal port, a second signal port and a first filtering subcircuit, the first signal port is coupled to the first filtering subcircuit and is used to couple with the signal transceiver circuit, the second signal port is coupled to the first filtering subcircuit and is used to couple with the signal amplification circuit; the second RF channel circuit includes a third signal port, a fourth signal port, a multi-way selection switch subcircuit, a second filtering subcircuit and a channel detection auxiliary port, the multi-way selection switch subcircuit includes a first connection end and at least two second connection ends, the third signal port is coupled to the first connection end and is used to couple with the signal transceiver circuit, the fourth signal port is coupled to the second filtering subcircuit and is used to couple with the signal amplification circuit, the second filtering subcircuit and the channel detection auxiliary port are respectively coupled to a second connection end, so that each circuit is highly integrated. The functional unit, especially the channel detection auxiliary port, is used to realize the SRS function, which effectively improves the integration of the device, occupies a relatively small space on the corresponding circuit board, has a low manufacturing cost, and has a small workload for RF matching, debugging and verification. It also effectively reduces the number of occupied control signals, can match different market demands, and eliminate the cost of redundant devices. It can also support the current global mainstream market applications, has good versatility, and low scale application costs. In addition, the first signal port and the channel detection auxiliary port correspond to different signal frequency bands, and the first connection end can be selectively coupled to one of the second connection ends or left floating, so that the signal frequency band corresponding to the first signal port can be independent of the SRS function corresponding to the channel detection auxiliary port, effectively avoiding the interruption of the signal transmission corresponding to the first signal port when the SRS function is turned on, thereby effectively reducing the data throughput rate.

[0070] The above are only implementation methods of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A radio frequency channel circuit, characterized in that: The radio frequency channel circuit comprises: A first radio frequency channel circuit, comprising a first signal port, a second signal port and a first filtering subcircuit, wherein the first signal port is coupled to the first filtering subcircuit and is used to couple with a signal transceiver circuit, and the second signal port is coupled to the first filtering subcircuit and is used to couple with a signal amplification circuit; a second radio frequency channel circuit, comprising a third signal port, a fourth signal port, a multi-way selection switch sub-circuit, a second filtering sub-circuit and a channel detection auxiliary port, wherein the multi-way selection switch sub-circuit comprises a first connection end and at least two second connection ends, the third signal port is coupled to the first connection end and is used to couple with the signal transceiver circuit, the fourth signal port is coupled to the second filtering sub-circuit and is used to couple with the signal amplification circuit, and the second filtering sub-circuit and the channel detection auxiliary port are respectively coupled to one of the second connection ends; The first signal port and the channel detection auxiliary port correspond to different signal frequency bands, and the first connection end can be selectively coupled to one of the second connection ends or left floating.

2. The radio frequency channel circuit according to claim 1, characterized in that: The first signal port and the third signal port correspond to different signal frequency bands.

3. The radio frequency channel circuit according to claim 2, characterized in that: The first signal port corresponds to an intermediate frequency signal, and the third signal port corresponds to a high frequency signal.

4. The radio frequency channel circuit according to claim 2, characterized in that: The number of the second signal ports is at least two, the number of the fourth signal ports is the same as the number of the second filtering sub-circuit and is at least two, each of the fourth signal ports is coupled to a second filtering sub-circuit, and each of the second filtering sub-circuit is coupled to a second connecting end, different second signal ports correspond to different signal frequency bands, and different fourth signal ports correspond to different signal frequency bands and are different from the second signal port.

5. The radio frequency channel circuit according to claim 1, characterized in that: The RF channel circuit also includes a control circuit, which is coupled to the multi-way selection switch sub-circuit and is used to couple with the signal processing circuit. The control circuit receives a switch control signal sent by the signal processing circuit, and controls the multi-way selection switch sub-circuit in response to the switch control signal to selectively couple the first connection end to one of the second connection ends or leave it floating.

6. The radio frequency channel circuit according to claim 5, characterized in that: The switching time of the multi-way selection switch subcircuit is less than 2 microseconds.

7. A radio frequency circuit, characterized in that: The radio frequency circuit includes a signal transceiver circuit, a radio frequency channel circuit and a signal amplification circuit, and the radio frequency channel circuit is coupled between the signal transceiver circuit and the signal amplification circuit; The radio frequency channel circuit is the radio frequency channel circuit as claimed in any one of claims 1 to 6.

8. The radio frequency circuit according to claim 7, characterized in that: The radio frequency channel circuit includes a first radio frequency channel circuit and a second radio frequency channel circuit, the first radio frequency channel circuit includes a first signal port and a second signal port, and the second radio frequency channel circuit includes a third signal port and a fourth signal port; The signal transceiver circuit includes a first antenna and a second antenna, the first antenna is coupled to the first signal port, and the second antenna is coupled to the third signal port; The signal amplification circuit includes a first amplifier, a second amplifier, a third amplifier and a gating switch sub-circuit, the gating switch sub-circuit includes a first signal connection terminal and at least two second signal connection terminals, the first amplifier and the second amplifier are respectively coupled to one of the second signal ports, each of the second signal connection terminals is coupled to one of the fourth signal ports, the first signal connection terminal is coupled to the third amplifier, and can be selectively coupled to one of the second signal connection terminals or left floating.

9. The radio frequency circuit according to claim 7, characterized in that: The signal transceiver circuit includes a frequency divider and a third antenna. The frequency divider is coupled to the third antenna, the first signal port, and the third signal port.

10. An electronic device, characterized in that: The electronic device comprises a housing and a signal function circuit connected to each other; The signal function circuit is a radio frequency channel circuit as described in any one of claims 1 to 6, or a radio frequency circuit as described in any one of claims 7 to 9.

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