CN114039614B - RF front-end devices, RF transceiver systems and communication equipment - Google Patents

Abstract

The present application discloses a radio frequency front-end device, a radio frequency transceiver system, and a communication device, which are used for the main set of antenna radio frequency links, and can support non-independent networking mode without external multi-mode and multi-frequency power amplifier devices, and improve the integration degree , reducing the occupied mainboard area; moreover, due to the improvement of device integration, the cost is also reduced; in addition, through integration, the wiring of power supply, transmission control, etc. is reduced, the complexity of the board layout is reduced, and the Performance of radio frequency transceiver systems and communication equipment.

Description

RF front-end devices, RF transceiver systems and communication equipment

technical field

This application relates to, but is not limited to, radio frequency technology, especially a radio frequency front-end device, a radio frequency transceiver system, and a communication device.

Background technique

With the development and progress of technology, 5G mobile communication technology has gradually begun to be applied to electronic devices. With the increase of communication network standards, the terminal equipment must support the communication requirements under various network standards such as 2G, 3G, 4G, and 5G; limited by the size constraints of the terminal equipment, the space of the motherboard PCB has not been obtained due to the increase in demand. A substantial increase, which will lead to very tight space layout and wiring of the motherboard PCB.

In order to support ENDC, it is necessary to additionally use Multimode Multiband Power Amplifier Module (MMPA, Multimode Multiband Power Amplifier Module) devices, which undoubtedly aggravates the problem of tight space layout and wiring, and also increases the complexity of PCB layout and wiring. increased costs. Among them, ENDC is the abbreviation of EUTRA NRDual-Connectivity, E stands for E-UTRA, which belongs to the air interface of 3GPP LTE and is the eighth version of 3GPP; N stands for N radio 5G; D stands for LTE and 5G dual connectivity. ENDC can be understood as the mutual compatibility of 4G and 5G dual connections.

SUMMARY OF THE INVENTION

The present application provides a radio frequency front-end device, a radio frequency transceiver system, and a communication device, which can improve the integration degree of the radio frequency device, save area, and improve product performance.

An embodiment of the present application provides a radio frequency front-end device (first radio frequency front-end device), which is used for a main set of antenna radio frequency links, and is provided with a first intermediate frequency transmitting port and an intermediate frequency auxiliary transmitting port; the radio frequency front-end device includes:

a first transmitting circuit, connected to the first intermediate frequency transmitting port and the intermediate frequency auxiliary transmitting port, for performing power amplification processing on the first intermediate frequency signal from the first intermediate frequency transmitting port and outputting through the intermediate frequency auxiliary transmitting port;

Wherein, the first mid-band signal is one of the preset mid-band signals in the non-independent networking mode;

The radio frequency front-end device is further provided with a second intermediate frequency transmitting port, at least two receiving ports, a first antenna port and at least two auxiliary receiving ports; wherein, the intermediate frequency auxiliary transmitting port and an auxiliary receiving port are both connected with an external circuit connection; a second antenna port is also provided; the radio frequency front-end device further includes:

The first switch circuit, a plurality of second ports of the first switch circuit are respectively connected to the second transmitting circuit and the first receiving circuit, and a first port of the first switch circuit is connected to the first antenna port for selectively conducting the first switching circuit. two radio frequency paths between the transmitting circuit and the first receiving circuit and the first antenna port respectively; a first port of the first switch circuit is connected to the second antenna port;

The second transmitting circuit is connected to the second intermediate frequency transmitting port, and is used for amplifying the second intermediate frequency signal among the plurality of intermediate frequency signals from the second intermediate frequency transmitting port and outputting it to the first antenna port. Amplify and output multiple intermediate frequency signals of the second intermediate frequency transmission port except the second intermediate frequency signal to the first antenna port or the second antenna port;

The first receiving circuit is connected to the receiving port, the auxiliary receiving port and the second transmitting circuit, and is used for: amplifying the received first intermediate frequency signal from the auxiliary receiving port connected with the external circuit and outputting it to a The receiving port amplifies the main MIMO signal of the second mid-band signal from an auxiliary receiving port and outputs it to a receiving port, and amplifies at least the second mid-band signal from the plurality of mid-band signals from the radio frequency channel Process and output to a receiving port;

Wherein, the second mid-band signal is another preset mid-band signal in the non-independent networking mode;

The radio frequency front-end device is a radio frequency MHB L-PA Mid device.

An embodiment of the present application provides a radio frequency transceiver system (a first radio frequency transceiver system), including: a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, an external circuit, a second combiner, a third antenna A quad combiner, a first filter, a second filter and a third filter, an LFEM device, and the first RF front-end device described in the above item; wherein,

The radio frequency transceiver is connected to the first antenna through the first radio frequency front-end device, and constitutes a transmission channel of the intermediate frequency signal including at least the second intermediate frequency signal and a main set of reception channels of the intermediate frequency signal at least including the second intermediate frequency signal;

The radio frequency transceiver is connected with the second antenna through the first radio frequency front-end device, the external circuit, the first filter and the second combiner, and constitutes a transmitting channel of the first intermediate frequency signal and a main set receiving channel of the first intermediate frequency signal, and the main set of MIMO receiving channels for the second mid-band signal;

The radio frequency transceiver is connected with the third antenna via the LFEM device to form a diversity receiving channel of the mid-band signal including at least the second mid-band signal;

The radio frequency transceiver is connected to the fourth antenna via the LFEM device, the second filter, the third filter and the fourth combiner to form a diversity receiving channel of the first intermediate frequency band signal and a diversity MIMO receiving channel of the second intermediate frequency band signal ;

Wherein, the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.

An embodiment of the present application provides a communication device, including the radio frequency transceiver system described in any one of the above.

The first radio frequency front-end device provided by the embodiment of the present application is used for the main antenna radio frequency link, and it no longer needs an external multi-mode and multi-frequency power amplifier device to support the non-independent networking mode, which reduces the area occupied by the PCB and improves the radio frequency. The integration level of the device reduces the cost, and after integration, the power supply, transmission control and other wirings are reduced, the complexity of the single board layout is reduced, and the performance of the radio frequency transceiver system and communication equipment is improved.

The embodiment of the present application also provides a radio frequency front-end device (second radio frequency front-end device), which is used for the main antenna radio frequency link, and is provided with a first intermediate frequency transmitting port, at least one receiving port, at least one auxiliary receiving port, and intermediate frequency auxiliary transceiver. port and intermediate frequency auxiliary receiving port; wherein, the intermediate frequency auxiliary receiving port is connected with an auxiliary receiving port through a radio frequency line; the radio frequency front-end device includes:

a first transmitting circuit, connected to the first intermediate frequency transmitting port and the switching circuit, for amplifying the first intermediate frequency signal from the first intermediate frequency transmitting port and outputting the intermediate frequency auxiliary transceiver port through the switching circuit;

The switching circuit is connected to the first transmitting circuit, the intermediate frequency auxiliary transceiver port, and the intermediate frequency auxiliary receiving port, and is used for separating the transceiver paths according to the transceiver signal direction of the first intermediate frequency band signal to realize single-antenna bidirectional communication;

The first receiving circuit is connected to the receiving port and the auxiliary receiving port, and is used for amplifying the first intermediate frequency band signal received through the intermediate frequency auxiliary receiving and transmitting port from the auxiliary receiving port connected to the intermediate frequency auxiliary receiving port and outputting it to a receiving circuit. port;

Wherein, the first mid-band signal is one of the preset mid-band signals in the non-independent networking mode;

The radio frequency front-end device, wherein the auxiliary receiving ports include at least two; the radio frequency front-end device is further provided with a second intermediate frequency transmitting port and a first antenna port; and a second antenna port; the radio frequency front-end device is also provided Also includes:

The first switch circuit, a plurality of second ports of the first switch circuit are respectively connected with the second transmitting circuit and the first receiving circuit, and a first port of the first switch circuit is connected with the first antenna port, for selecting the conductor connecting the radio frequency paths between the second transmitting circuit and the first receiving circuit and the first antenna port respectively; a first port of the first switch circuit is connected to the second antenna port;

The second transmitting circuit is connected to the second intermediate frequency transmitting port, and is used for amplifying the second intermediate frequency signal among the plurality of intermediate frequency signals from the second intermediate frequency transmitting port and outputting it to the first antenna port. Amplify and output multiple intermediate frequency signals of the second intermediate frequency transmission port except the second intermediate frequency signal to the first antenna port or the second antenna port;

The first receiving circuit is also connected to the second transmitting circuit, and is also used for amplifying at least the second intermediate frequency signal in the plurality of intermediate frequency signals from the radio frequency channel and outputting it to a receiving port. amplifying and outputting the main set of MIMO signals of the second mid-band signal of the auxiliary receiving port to one of the receiving ports;

Wherein, the second mid-band signal is another preset mid-band signal in the non-independent networking mode;

The radio frequency front-end device is a radio frequency MHB L-PA Mid device.

An embodiment of the present application further provides a radio frequency transceiver system (a second radio frequency transceiver system), including: a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, a second combiner, a fourth combiner a circuit breaker, a first filter, a second filter and a third filter, an LFEM device, and the second radio frequency front-end device described in any one of the above; wherein,

The radio frequency transceiver is connected to the first antenna via the second radio frequency front-end device, and constitutes a transmitting channel of the intermediate frequency signal including at least the second intermediate frequency signal and a main set receiving channel of the intermediate frequency signal at least including the second intermediate frequency signal;

The radio frequency transceiver is connected to the second antenna through the second radio frequency front-end device, the first filter and the second combiner, and constitutes a transmitting channel of the first intermediate frequency signal, a main set receiving channel of the first intermediate frequency signal, and at least a first intermediate frequency signal transmission channel. The main set of MIMO receiving channels for the second mid-band signal;

The radio frequency transceiver is connected with the third antenna via the LFEM device to form a diversity receiving channel of the mid-band signal including at least the second mid-band signal;

The radio frequency transceiver is connected to the fourth antenna via the LFEM device, the second filter, the third filter and the fourth combiner to form a diversity receiving channel of the first intermediate frequency band signal and a diversity MIMO receiving channel of the second intermediate frequency band signal ;

Wherein, the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.

Embodiments of the present application further provide a communication device, including the radio frequency transceiver system described in any one of the above.

The second radio frequency front-end device provided in the embodiment of the present application is used for the main antenna radio frequency link, and it no longer needs an external multi-mode multi-frequency power amplifier device and a preset frequency band duplexer to support the non-independent networking mode, reducing the number of The area occupied by the PCB improves the integration level of RF devices and reduces the cost. After integration, the power supply, transmission control and other wirings are reduced, and the complexity of the single-board layout is reduced, thereby improving the performance of the RF transceiver system and communication equipment. .

Embodiments of the present application further provide a radio frequency front-end device (a third radio frequency front-end device), which is used for a main set of antenna radio frequency links, and is provided with a first intermediate frequency transmitting port, at least one receiving port, and intermediate frequency auxiliary transceiver ports; the radio frequency front end Devices include:

a first transmitting circuit, connected to the first intermediate frequency transmitting port and the switching circuit, for amplifying the first intermediate frequency signal from the first intermediate frequency transmitting port and outputting the intermediate frequency auxiliary transceiver port through the switching circuit;

The switching circuit is connected to the first transmitting circuit, the intermediate frequency auxiliary transmitting and receiving port, and the first receiving circuit, and is used for separating the transmitting and receiving paths according to the transmitting and receiving signal direction of the first intermediate frequency frequency signal to realize single-antenna two-way communication;

The first receiving circuit is connected to the receiving port and the switching circuit, and is used for amplifying the first intermediate frequency band signal received through the intermediate frequency auxiliary transceiver port of the switching circuit and outputting it to a receiving port;

Wherein, the first mid-band signal is one of the preset mid-band signals in the non-independent networking mode;

The radio frequency front-end device is further provided with a second intermediate frequency transmitting port, a first antenna port, and at least one auxiliary receiving port; a second antenna port is also provided; the radio frequency front-end device further includes:

The first switch circuit, a plurality of second ports of the first switch circuit are respectively connected to the second transmitting circuit and the first receiving circuit, and a first port of the first switch circuit is connected to the first antenna port for selectively conducting the first switching circuit. two radio frequency paths between the transmitting circuit and the first receiving circuit and the first antenna port respectively; a first port of the first switch circuit is connected to the second antenna port;

The second transmitting circuit is connected to the second intermediate frequency transmitting port, and is used for amplifying the second intermediate frequency signal among the plurality of intermediate frequency signals from the second intermediate frequency transmitting port and outputting it to the first antenna port. Amplify and output multiple intermediate frequency signals of the second intermediate frequency transmission port except the second intermediate frequency signal to the first antenna port or the second antenna port;

The first receiving circuit is also connected to the second transmitting circuit, and is also used for amplifying at least the second intermediate frequency signal among the plurality of intermediate frequency signals from the radio frequency channel and outputting it to another receiving port. The main set of MIMO signals of the second mid-band signal of the auxiliary receiving port is amplified and output to one of the receiving ports;

Wherein, the second mid-band signal is another preset mid-band signal in the non-independent networking mode;

The radio frequency front-end device is a radio frequency MHB L-PA Mid device.

An embodiment of the present application further provides a radio frequency transceiver system (a third radio frequency transceiver system), including: a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, a second combiner, a fourth combiner a circuit breaker, a first filter, a second filter and a third filter, an LFEM device, and the third radio frequency front-end device described in any one of the above; wherein,

The radio frequency transceiver is connected to the first antenna via the third radio frequency front-end device, and constitutes a transmitting channel of the intermediate frequency signal including at least the second intermediate frequency signal and a main set receiving channel of the intermediate frequency signal at least including the second intermediate frequency signal;

The radio frequency transceiver is connected to the second antenna through the third radio frequency front-end device, the first filter and the second combiner, and constitutes a transmitting channel of the first intermediate frequency signal, a main set receiving channel of the first intermediate frequency signal, and a second Main set of MIMO receiving channels for mid-band signals;

The radio frequency transceiver is connected with the third antenna via the LFEM device to form a diversity receiving channel of the mid-band signal including at least the second mid-band signal;

The radio frequency transceiver is connected to the fourth antenna via the LFEM device, the second filter, the third filter and the fourth combiner to form a diversity receiving channel of the first intermediate frequency band signal and a diversity MIMO receiving channel of the second intermediate frequency band signal ;

Wherein, the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.

An embodiment of the present application further provides a communication device, including the third radio frequency transceiver system described in any one of the above.

The third radio frequency front-end device provided in the embodiment of the present application is used for the main antenna radio frequency link, and it no longer needs an external multi-mode multi-frequency power amplifier device and a preset frequency band duplexer to support the non-independent networking mode, reducing the need for The area occupied by the PCB improves the integration level of RF devices and reduces the cost. After integration, the power supply, transmission control and other wirings are reduced, which further reduces the complexity of single-board wiring layout, thereby improving the RF transceiver system and communication. device performance.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the description, claims and drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification. They are used to explain the technical solutions of the present application together with the embodiments of the present application, and do not constitute a limitation on the technical solutions of the present application.

FIG. 1 is a schematic structural diagram of a first embodiment of a first radio frequency front-end device in an embodiment of the application;

FIG. 2 is a schematic structural diagram of a second embodiment of a first radio frequency front-end device in an embodiment of the application;

3 is a schematic structural diagram of a third embodiment of a first radio frequency front-end device in an embodiment of the application;

4 is a schematic structural diagram of a first radio frequency MHB L-PA Mid device in an embodiment of the application;

FIG. 5 is a schematic structural diagram of a first embodiment of a first radio frequency transceiver system in an embodiment of the application;

6 is a schematic structural diagram of a second embodiment of a first radio frequency transceiver system in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a first embodiment of a second radio frequency front-end device in an embodiment of the application;

FIG. 8 is a schematic structural diagram of a second embodiment of a second radio frequency front-end device in an embodiment of the application;

FIG. 9 is a schematic structural diagram of a third embodiment of a second radio frequency front-end device in an embodiment of the present application;

10 is a schematic structural diagram of a second radio frequency MHB L-PA Mid device in an embodiment of the application;

11 is a schematic structural diagram of a first embodiment of a second radio frequency transceiver system in an embodiment of the application;

12 is a schematic structural diagram of a second embodiment of a second radio frequency transceiver system in an embodiment of the application;

13 is a schematic structural diagram of a first embodiment of a third radio frequency front-end device in an embodiment of the application;

14 is a schematic structural diagram of a second embodiment of a third radio frequency front-end device in an embodiment of the application;

15 is a schematic structural diagram of a third embodiment of a third radio frequency front-end device in an embodiment of the application;

16 is a schematic structural diagram of a third radio frequency MHB L-PA Mid device in an embodiment of the application;

17 is a schematic structural diagram of a first embodiment of a third radio frequency transceiver system in an embodiment of the application;

FIG. 18 is a schematic structural diagram of a second embodiment of a third radio frequency transceiver system in an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. Embodiments of the present application are presented in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

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

It can be understood that the terms "first" and "second" used in this application are only used for description purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

It can be understood that the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between them.

As used herein, the singular forms "a," "an," and "the/the" can include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the terms "comprising/comprising" or "having" etc. designate the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more Possibilities of other features, integers, steps, operations, components, parts or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.

The non-standalone (NSA, non-Standalone) mode may include any of the following architectures: EN-DC, NE-DC, NGEN-DC, and so on. Among them, DC stands for Dual Connectivity, that is, dual connectivity; E stands for E-UTRA, that is, 4G wireless access network; N stands for NR, that is, 5G new wireless; NG stands for next-generation core network, that is, 5G core network.

Under the EN-DC architecture, the core network is the 4G core network, the 4G base station is the main station, and the 5G base station is the auxiliary station. EN-DC refers to the dual connection of the 4G wireless access network and 5G NR; under the NE-DC architecture, the core The network is the 5G core network, the 5G base station is the main station, and the 4G base station is the auxiliary station. NE-DC refers to the dual connection of 5G NR and 4G wireless access network; under the NGEN-DC architecture, the core network is the 5G core network and the 4G base station. As the main station, the 5G base station is the auxiliary station, and NGEN-DC refers to the dual connection between the 4G wireless access network and 5G NR under the 5G core network.

For convenience of description, the non-independent networking mode in the embodiment of the present application is described by taking the EN-DC architecture as an example.

FIG. 1 is a schematic structural diagram of the first embodiment of the first radio frequency front-end device in the embodiment of the application, which is used for the main set of antenna radio frequency links. As shown in FIG. 1 , the first radio frequency front-end device is provided with at least a first intermediate frequency transmission port MB RFIN1, the intermediate frequency auxiliary transmission port MB TX OUT; the first radio frequency front-end device at least includes:

The first transmitting circuit 110 is connected to the first intermediate frequency transmitting port MB RFIN1 and the intermediate frequency auxiliary transmitting port MB TX OUT, and is used for power amplifying the first intermediate frequency signal from the first intermediate frequency transmitting port MB RFIN1 and transmitting through the intermediate frequency auxiliary Port MB TX OUT output;

Wherein, the first mid-band signal is one of the preset mid-band signals in the non-standalone networking mode.

In an exemplary example, the first radio frequency front-end device is further provided with a second intermediate frequency transmit port MB RFIN2, at least two receive ports LNA OUT, a first antenna port ANT1 and at least two auxiliary receive ports LNA IN; wherein the intermediate frequency The auxiliary transmitting port MB TX OUT and an auxiliary receiving port LNA IN are both connected to external circuits; the radio frequency front-end device shown in Figure 1 also includes:

The first switch circuit 130, a plurality of second ports of the first switch circuit 130 are respectively connected to the second transmitting circuit 120 and the first receiving circuit 140, a first port of the first switch circuit 130 is connected to the first antenna port ANT1, for selectively conducting the radio frequency paths between the second transmitting circuit 120 and the first receiving circuit 140 and the first antenna port ANT1;

The second transmitting circuit 120 is connected to the second intermediate frequency transmitting port MB RFIN2, and is used for amplifying at least the second intermediate frequency signal among the plurality of intermediate frequency signals from the second intermediate frequency transmitting port MB RFIN2;

The first receiving circuit 140 is connected to the receiving port LNA OUT, the auxiliary receiving port LNA IN and the second transmitting circuit 120, and is used to amplify the first intermediate frequency band signal received from the auxiliary receiving port LNA IN connected to the external circuit Process and output to a receiving port LNA OUT, amplify the main set of MIMO signals of the second mid-band signal from an auxiliary receiving port LNA IN and output to a receiving port LNA OUT, and amplify the multiple mid-band signals from the radio frequency channel. at least a second intermediate frequency band signal in the frequency band signal is amplified and output to a receiving port LNA OUT;

Wherein, the second mid-band signal is another preset mid-band signal in the non-standalone networking mode.

In an exemplary example, the second transmitting circuit 120 is connected to the plurality of second ports of the first switching circuit 130 in a one-to-one correspondence, and is further configured to divide the second intermediate frequency band signal from the second intermediate frequency transmitting port MB RFIN2 The multiple mid-band signals other than the IF signal are amplified and output to the first switch circuit 130; the first receiving circuit 140 is also connected to the multiple second ports of the first switch circuit 130 in a one-to-one correspondence, and is used for receiving signals from the first switch circuit 130. The multiple mid-band signals of the switch circuit 130 are amplified and output to the receiving port LNA OUT.

The first radio frequency front-end device provided by the embodiment shown in FIG. 1 of the present application supports reception and transmission of intermediate frequency signals of multiple different frequency bands and supports a non-independent networking mode. The plurality of mid-band signals may include mid-band signals of different frequency bands among 4G signals, 5G NR signals, or 6G signals. Exemplarily, the frequency bands of the multiple mid-band signals include at least B1, B25, B34, B66, B39, and N3 frequency bands, as well as a preset first intermediate frequency band and a preset second intermediate frequency band. In an embodiment, the preset first intermediate frequency band may include but is not limited to one of the following: B3, B1 and other frequency bands, and correspondingly, the preset second intermediate frequency band may include but not limited to one of the following: N1, N3, etc. frequency band. In an embodiment, the preset first intermediate frequency band may include, but is not limited to, one of the following: N1, N3 and other frequency bands, and correspondingly, the preset second intermediate frequency band may include but not limited to one of the following: B3, B1, etc. frequency band.

The first radio frequency front-end device shown in FIG. 1 can be understood as a package structure. As shown in FIG. 1, in an embodiment, the first radio frequency front-end device is provided with first intermediate frequency transmit ports MB RFIN1, The second intermediate frequency transmit port MB RFIN2 and at least two receive ports LNA OUT are used to connect the first antenna port ANT1 of the antenna, and the intermediate frequency auxiliary transmit port MB TX OUT and at least two auxiliary receive ports LNA IN. The receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, the second intermediate frequency transmitting port MB RFIN2, the first antenna port ANT1, the intermediate frequency auxiliary transmitting port MB TX OUT and the auxiliary receiving port LNA IN can be understood as the first radio frequency front-end device The RF pin terminals are used to connect with various external devices. In one embodiment, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1 and the second intermediate frequency transmitting port MB RFIN2 can be used to connect with a radio frequency transceiver; the first antenna port ANT1 can be used to connect to an antenna, and can A plurality of mid-band signals including the second mid-band signal processed by the first RF front-end device are output to the antenna, and each mid-band signal including the second mid-band signal received by the antenna can also be transmitted to the first RF front-end device ; The intermediate frequency auxiliary transmission port MB TX OUT and an auxiliary receiving port LNA IN are both connected with external circuits to realize the transmission and reception of the first intermediate frequency band signal.

In an exemplary embodiment, the external circuit is a switching circuit, and the switching circuit is respectively connected to the intermediate frequency auxiliary transmit port MB TX OUT, an auxiliary receive port LNA IN and the antenna. In an embodiment, the switching circuit may be a first mid-band duplexer, wherein the preset first mid-band is the frequency band where the first mid-band signal is located. The first mid-band duplexer is a three-port radio frequency device, which is used to divide the transmit and receive signals of the antenna into two different signal paths according to their directions, so as to realize single-antenna bidirectional communication. In the embodiment of the present application, the transceiving signal is a first intermediate frequency band signal of a preset first intermediate frequency band.

In an exemplary example, one of the output ports of the preset first mid-band duplexer is connected to the intermediate-frequency auxiliary transmit port MB TX OUT for outputting the first mid-band signal; the first mid-band duplexer is preset The other output port of the device is connected to an auxiliary receiving port LNA IN for receiving the first mid-band signal; the preset common port of the first mid-band duplexer is connected to the antenna for receiving or transmitting the first mid-band signal. By presetting the first intermediate frequency band duplexer, filtering and isolation of the preset first intermediate frequency band transmission signal and the preset first intermediate frequency band receiving signal are realized.

In an exemplary example, as shown in FIG. 1 , the first radio frequency front-end device may include: a first transmitting circuit 110 , a second transmitting circuit 120 , a first receiving circuit 140 and a first switching circuit 130 .

In an exemplary example, as shown in FIG. 1 , the input end of the first transmitting circuit 110 is connected to the first intermediate frequency transmitting port MB RFIN1 to amplify the first intermediate frequency band signal received by the first intermediate frequency transmitting port MB RFIN1 ; The output end of the first transmitting circuit 110 is connected to the intermediate frequency auxiliary transmitting port MB TX OUT, and the amplified first intermediate frequency signal is output from the intermediate frequency auxiliary transmitting port MB TX OUT. The first transmitting circuit 110 is provided with a transmitting channel to support the transmission of the first intermediate frequency band signal. Exemplarily, the frequency band corresponding to the first intermediate frequency band signal may include, for example, the B3 or B1 frequency band, or may be the N1 or N3 frequency band. In an embodiment, the first transmit path may include: a first intermediate frequency transmit port MB RFIN1, a first transmit circuit 110, an intermediate frequency auxiliary transmit port MB TX OUT, an external circuit (such as a preset first intermediate frequency duplexer) , the transmission path formed by the antenna.

In an exemplary example, as shown in FIG. 1 , the input end of the second transmitting circuit 120 is connected to the second intermediate frequency transmitting port MB RFIN2, and the multi-frequency signal including the second intermediate frequency band signal received by the second intermediate frequency transmitting port MB RFIN2 Amplify the mid-band signals; the output end of the second transmitting circuit 120 includes: a plurality of output ports connected to the plurality of second ends of the first switching circuit 130 in a one-to-one correspondence, and a plurality of output ports connected to the first receiving circuit 140 The input ports correspond to multiple output ports connected in one-to-one correspondence.

In an exemplary example, the first radio frequency front-end device shown in FIG. 1 is further provided with a second antenna port ANT2 , which is connected to another first port of the first switch circuit 130 . In an embodiment, the second transmitting circuit 120 may amplify the multiple intermediate frequency signals received by the second intermediate frequency transmitting port MB RFIN2, wherein the second intermediate frequency signal in the multiple intermediate frequency signals is amplified after the amplification processing. and then output to the first switch circuit 130 . In one embodiment, the second transmit circuit 120 may be provided with multiple transmit paths to support the transmit of multiple mid-band signals. Exemplarily, the frequency bands corresponding to the multiple intermediate frequency band signals may at least include frequency bands such as B1/N1, B3/N3, B66, B25, B34, and B39. Exemplarily, the frequency band corresponding to the second intermediate frequency band signal may include, for example, the N1 or N3 frequency band, and may also include, for example, the B3 or B1 frequency band. In an embodiment, the second transmit path may include: a transmit path formed by the second intermediate frequency transmit port MB RFIN2, the second transmit circuit 120, the first switch circuit 130, the first antenna port ANT1 or the second antenna port ANT2 .

In an exemplary example, as shown in FIG. 1 , the first receiving circuit 140 is respectively connected with the first switching circuit 130 , the second transmitting circuit 120 , the receiving port LNA OUT and the auxiliary receiving port LNA IN. The output end of the first receiving circuit 140 is connected to the receiving port LNA OUT. The input end of the first receiving circuit 140 includes: a plurality of input ports connected to the plurality of second ends of the first switching circuit 130 in a one-to-one correspondence, at least two auxiliary receiving ports LNA IN, and multiple input ports connected to the second transmitting circuit 120 . Each output port corresponds to a plurality of input ports connected in a one-to-one correspondence. The first receiving circuit 140 responds to the radio frequency signal including the second intermediate frequency signal from the plurality of input ports, the first intermediate frequency signal from the auxiliary receiving port LNA IN connected to the external circuit, and the second intermediate frequency signal from another auxiliary receiving port. The main set of MIMO signals of the frequency band signals are respectively amplified and output to the receiving port LNA OUT.

The first receiving circuit 140 in this embodiment supports receiving control of any of the aforementioned mid-band signals. In one embodiment, the first receiving circuit 140 may be provided with multiple receiving paths to support the receiving of multiple intermediate frequency band signals. In an embodiment, the receiving path may include: a first antenna port ANT1, a first switching circuit 130, a first receiving circuit 140, a receiving path formed by any receiving port LNA OUT, and a first antenna port ANT1, a first receiving circuit 140, and a receiving path formed by any receiving port LNA OUT A switching circuit 130, a second transmitting circuit 120, a first receiving circuit 140, a receiving path formed by any receiving port LNA OUT, and an auxiliary receiving port LNA IN, a first receiving circuit 140, and any receiving port LNA OUT are formed together the receive path. That is, a receiving channel can be set for the mid-band signals of each frequency band to support the receiving and processing of multiple mid-band signals.

The first RF front-end device shown in FIG. 1 of the present application is used for the main antenna RF link, and it no longer needs an external multi-mode and multi-frequency power amplifier device to support the non-independent networking mode, which reduces the PCB occupied area and improves the performance. The integration level of RF devices reduces costs, and after integration, wiring for power supply, transmission control, etc. is reduced, and the complexity of single-board layout is reduced, thereby improving the performance of RF transceiver systems and communication equipment.

FIG. 2 is a schematic structural diagram of a second embodiment of the first radio frequency front-end device in the embodiment of the application. As shown in FIG. 2 , in an exemplary example, the first radio frequency front-end device is further provided with high-frequency transmit ports HB RFIN, 2G high-frequency transmit port 2G HB IN, high-frequency auxiliary transmit port HB TX OUT connected to external devices, multiple auxiliary transceiver ports TRX (such as TRX1, TRX2, and TRX3), the first radio frequency front-end device may further include: a third The transmitting circuit 160 and the second switching circuit 170 .

In an exemplary example, the input terminal of the third transmitting circuit 160 is connected to the high-frequency transmitting port HB RFIN, the multiple output ports of the third transmitting circuit 160 are connected to the multiple second terminals of the first switching circuit 130, and the first One output port of the three transmitting circuits 160 is connected to the high-frequency auxiliary transmitting port HB TX OUT, and multiple output ports of the third transmitting circuit 160 are connected to multiple input ports of the first receiving circuit 140. The third transmitting circuit 160 is used for The received high-frequency signals are amplified; among them, the high-frequency signals are 4G signals and 5G signals. Exemplarily, the plurality of high-frequency signals may include signals in frequency bands such as B7, B40, and B41.

In an exemplary example, a first end of the second switch circuit 170 is connected to a second end of the first switch circuit 130 , and a plurality of second ports of the second switch circuit 170 are respectively connected with a plurality of auxiliary transceiving ports TRX and The 2G high-frequency transmit port 2GHB IN is connected; an auxiliary transceiver port TRX is connected with a second port of the first switch circuit 130 .

In an embodiment, the preset first intermediate frequency band in the embodiment of the present application may be the B3 frequency band, and correspondingly, the preset second intermediate frequency band may be replaced by the second high frequency band, that is, a high frequency band signal such as the N41 frequency band, At this time, the transmission and reception of the high frequency band signal will be implemented by the third transmitting circuit, the first switching circuit and the first receiving circuit, and the specific implementation is easy to understand and will not be described in detail here.

FIG. 3 is a schematic structural diagram of a third embodiment of the first radio frequency front-end device in the embodiment of the present application. As shown in FIG. 3 , in an exemplary example, the first radio frequency front-end device in the embodiment of the present application is further provided with a coupling The output port CPLOUT2 and the coupling input port CPLIN2, the first radio frequency front-end device further includes a coupling circuit 183, which is arranged in the radio frequency path between the first transmitting circuit 110 and the intermediate frequency auxiliary transmitting port MB TX OUT, and is used for coupling the intermediate frequency in the radio frequency path. frequency band signal to output the coupling signal through the coupling output port CPLOUT2. The coupled signal can be used to measure the forward coupling power and the reverse coupling power of the mid-band signal. The coupling input port CPLIN2 can be used to connect with other external radio frequency front-end devices with coupling output ports, and is used to receive the coupling signal output by other external radio frequency front-end devices, and the received coupling signal is coupled to the radio frequency front-end device to which the coupling input port CPLIN2 belongs. The output port CPLOUT2 is output to realize the transmission of other externally coupled signals.

As shown in FIG. 3 , the first radio frequency front-end device in the embodiment of the present application is further provided with a coupling output port CPLOUT1 and a coupling input port CPLIN1, and the first radio frequency front-end device in the embodiment of the present application further includes a first coupling unit 181, a Two coupling units 182 and coupling switches 184 . The first coupling unit 181 can be coupled in the radio frequency path between the first switch circuit 130 and the first antenna port ANT1 for coupling the radio frequency signal in the radio frequency path, so as to output the first coupling end through the coupling end of the first coupling unit 181 . a coupled signal. Wherein, the first coupling signal can be used to measure the forward coupling power and the reverse coupling power of the radio frequency signal. The second coupling unit 182 may be coupled in the radio frequency path between the first switch circuit 130 and the second antenna port ANT2 for coupling the radio frequency signal in the radio frequency path to output the second coupling through the coupling port of the second coupling unit 182 Signal. Wherein, the second coupling signal can be used to measure the forward coupling power and the reverse coupling power of the radio frequency signal.

The structures of the first coupling unit 181 and the second coupling unit 182 are the same. Taking the first coupling unit 181 as an example, the first coupling unit 181 includes an input end, an output end and a coupling end. The input end of the first coupling unit 181 is connected to the first switch circuit 130, the output end of the first coupling unit 181 is connected to the first antenna port ANT1, and the coupling end is used to couple the intermediate frequency signal received by the input end and output the first A coupled signal, wherein the first coupled signal includes a first forward coupled signal and a first reverse coupled signal. Wherein, based on the first forward coupling signal output by the coupling end, the forward power information of the intermediate frequency signal can be detected; based on the first reverse coupling signal output by the coupling end, the reverse power information of the intermediate frequency signal can be detected correspondingly, and This detection mode is defined as a reverse power detection mode.

The coupling switch 184 is respectively connected to the coupling end of the first coupling unit 181 , the coupling end of the second coupling unit 182 and the coupling output port CPLOUT1 for selectively outputting the first coupling signal or the second coupling signal to the coupling output port CPLOUT1 . That is, the coupling switch 184 is used to switch between the detection mode of the first coupled signal and the detection mode of the second coupled signal. The coupling input port CPLIN1 can be used to connect with other external radio frequency front-end devices with the coupling output port CPLOUT, and is used to receive the coupling signal output by other external radio frequency front-end devices, and the received coupling signal is passed through the coupling input port CPLIN1 belongs to the radio frequency front-end device. Coupling output port CPLOUT1 output, in order to realize the transmission of other external coupling signals.

The embodiments of the present application provide that the first radio frequency front-end device is a radio frequency L-PA Mid device. The RF L-PA Mid device can be understood as a power amplifier module with a built-in low noise amplifier (L-PA Mid Power AmplifierModules including Duplexers WithLNA). The RF L-PA Mid device can support the reception and transmission of intermediate frequency signals and high frequency signals of multiple different frequency bands, and realize the control of reception switching, transmission switching control, and switching control between transmission and reception among multiple intermediate frequency signals. , and realize the control of reception switching, transmission switching control, and switching control between transmission and reception among multiple high-frequency signals, and support non-independent networking mode. The plurality of medium and high frequency signals may include medium and high frequency signals in different frequency bands among 4G signals and 5GNR signals. Specifically, the frequency bands of the multiple intermediate frequency signals may include B1, B3, B25, B34, B66, B39, N1 and N3 frequency bands. The frequency bands of the plurality of high frequency signals may include B30, B7, B40, B41, N7 and N41. Therefore, the radio frequency L-PA Mid device in the embodiments of the present application may also be referred to as a medium and high frequency power amplifier module with a built-in low noise amplifier (MHB L-PA Mid, Middle and High Band PAMid With LNA).

FIG. 4 is a schematic structural diagram of an embodiment of a first radio frequency MHB L-PA Mid device in an embodiment of the application. As shown in FIG. 4 , in an embodiment, the first radio frequency MHB L-PA Mid device is provided with a radio frequency The transceiver is connected to the first intermediate frequency transmitting port MB RFIN1, the second intermediate frequency transmitting port MB RFIN2, at least two receiving ports LNA OUT, the intermediate frequency auxiliary transmitting port MB TX OUT used for connecting with the external circuit, and the first intermediate frequency transmitting port MB TX OUT used for connecting with the antenna. An antenna port ANT1, and at least two auxiliary receiving ports LNA IN. The receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, the second intermediate frequency transmitting port MB RFIN2, the intermediate frequency auxiliary transmitting port MB TX OUT, the first antenna port ANT1, and the auxiliary receiving port LNAIN can be understood as the radio frequency LB L-PA Mid The device's RF pin terminals for connection to various external devices. In an embodiment, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, and the second intermediate frequency transmitting port MB RFIN2 can be used to connect to the radio frequency transceiver; the first antenna port ANT1 can be used to connect to the antenna, and The multiple mid-band signals including the second mid-band signal processed by the RF MHB L-PAMid device are output to the antenna, and each mid-band signal including the second mid-band signal received by the antenna can also be transmitted to the RF MHB L-PA Mid device; the intermediate frequency auxiliary transmitting port MB TX OUT and an auxiliary receiving port LNA IN are both connected to an external circuit 10 to realize the transmission and reception of the first intermediate frequency band signal, and the external circuit 10 can be used for the preset first intermediate frequency signal. Filtering and isolating the first mid-band transmit signal of a mid-band and the first mid-band receive signal to ensure normal operation of reception and transmission.

In an exemplary example, as shown in FIG. 4 , the first transmitting circuit 110 may at least include: a first intermediate frequency power amplifier 111, the input end of the first intermediate frequency power amplifier 111 is connected to the first intermediate frequency transmitting port MB RFIN1, and the first intermediate frequency power amplifier 111 is connected to the first intermediate frequency transmitting port MB RFIN1. The output end of an intermediate frequency power amplifier 111 is connected to the intermediate frequency auxiliary transmission port MB TX OUT, and is used for performing power amplification processing on the first intermediate frequency band signal received through the first intermediate frequency transmission port MB RFIN1. In an embodiment, the first intermediate frequency band signal includes a B3 or B1 frequency band signal. In an embodiment, the first transmit path may include: a first intermediate frequency transmit port MBRFIN1, a first intermediate frequency power amplifier 111, an intermediate frequency auxiliary transmit port MB TX OUT, an external circuit 10 (for example, a preset first intermediate frequency duplexer) ) and the transmission path formed by the antenna.

In the embodiment of the present application, by integrating the first intermediate frequency power amplifier 111 in the first radio frequency MHB L-PA Mid device, an external multi-mode and multi-frequency power amplifier device is no longer required, the PCB occupied area is reduced, and the integration of radio frequency devices is improved. In addition, after integration, the power supply, transmission control and other wirings are reduced, and the complexity of the board layout is reduced, thereby improving the performance of the radio frequency transceiver system and communication equipment.

In an exemplary example, as shown in FIG. 4 , the first radio frequency MHB L-PA Mid device is further provided with a second antenna port ANT2 , which is connected to a first port of the first switch circuit 130 . The second transmitting circuit 120 may at least include: a second intermediate frequency power amplifier 121 and a second switching unit 122; wherein, the input end of the second intermediate frequency power amplifier 121 is connected to the second intermediate frequency transmitting port MB RFIN2, and the second intermediate frequency power amplifier 121 The output end is connected to a first port of the second switch unit 122, and is used to perform power amplification processing on a plurality of intermediate frequency signals including the second intermediate frequency signal received through the second intermediate frequency transmission port MB RFIN2. The second switch unit 122 The plurality of second ports of the first switch circuit 130 are correspondingly connected to the plurality of second ports of the first switching circuit 130, and the second intermediate frequency band signal amplified and processed by the second intermediate frequency power amplifier 121 is output to the first antenna port, and the second intermediate frequency band signal amplified by the second intermediate frequency power amplifier 121 is output. The intermediate frequency power amplifier 121 amplifies and outputs a plurality of intermediate frequency signals except the second intermediate frequency signal to the first antenna port or the second antenna port. The plurality of first ports of the second switch unit 122 are correspondingly connected to the first receiving circuit 140 for outputting a plurality of intermediate frequency signals from the first switching circuit 130 to the first receiving circuit 140 . In an embodiment, the second transmitting circuit 120 may further include: multiple first filtering units 1131 and multiple second filtering units 1132 , and multiple second ports of the second switching unit 122 are respectively passed through the first filtering unit 1131 Or the second filtering unit 1132 is connected to the first switching circuit 130, and is used for filtering the multiple intermediate frequency signals including the second intermediate frequency signal amplified by the second intermediate frequency power amplifier 121 and outputting to the first switching circuit. 130. In one embodiment, the second port of the second switch unit 122 connected to one end of the first filter unit 1131 or the second filter unit 1132 may include five, corresponding to B1/N1, B3/N3/B66, B25, B234, B39 frequency bands. In one embodiment, the second intermediate frequency band signal includes a signal in the N1 or N3 frequency band. In an embodiment, the second transmit path may include: a second intermediate frequency transmit port MBRFIN2, a second intermediate frequency power amplifier 121, a second switch unit 122, a first filter unit 1131 or a second filter unit 1132, a first switch circuit 130. A transmission channel formed by the first antenna port ANT1 or the second antenna port ANT2.

In an exemplary example, the first receiving circuit 140 may include: at least three low noise amplifiers 143, at least one third switch unit 142, and a fourth switch unit 144; wherein,

The input terminal of a low noise amplifier 143 (the low noise amplifier LNA1 in the embodiment shown in FIG. 4 ) and the first terminal of a third switch unit 142 (the third switch unit SP3T#1 in the embodiment shown in FIG. 4 ) A port is connected, a second port of the third switch unit SP3T#1 is connected to the first switch circuit 130, an output end of the low noise amplifier LNA1 is connected to a second port of the fourth switch unit 144, and the low noise amplifier LNA1 is used for After amplifying the second intermediate frequency band signal, it is output to a receiving port LNA OUT (the receiving port LNA OUT1 in the embodiment shown in FIG. 4 ) through the fourth switching unit 144;

The input end of a low noise amplifier 143 (the low noise amplifier LNA6 in the embodiment shown in FIG. 4 ) is connected to the auxiliary receiving port LNA IN (the auxiliary receiving port LNA IN6 in the embodiment shown in FIG. 4 ) connected to the external circuit 10 ) connection, the output end of the low noise amplifier LNA6 is connected with a second end of the fourth switch unit 144 for amplifying the received first mid-band signal and then output to another receiving port through the fourth switch unit 144 LNA OUT (the receiving port LNA OUT6 in the embodiment shown in FIG. 4 );

The input end of a low noise amplifier 143 (the low noise amplifier LNA5 in the embodiment shown in FIG. 4 ) is connected to the auxiliary receiving port LNA IN (the auxiliary receiving port LNA IN5 in the embodiment shown in FIG. 4 ) , the output end of the low noise amplifier LNA5 is connected to a second port of the fourth switch unit 144, and is used to amplify the main set of MIMO signals of the second mid-band signal and then output to the second port through the fourth switch unit 144. A receiving port LNA OUT (the receiving port LNA OUT5 in the embodiment shown in FIG. 4 ).

In an exemplary example, the first ports of the third switch unit 142 are respectively connected to the input terminals of some of the low noise amplifiers 143, and the second ports of the third switch unit 142 may be connected to the first switch circuit 130, or may be connected to the first switch circuit 130. Auxiliary receive port LNA IN connection. Taking the third switch unit SP3T#1 as an example, the first port of the third switch unit SP3T#1 is connected to the input end of the low noise amplifier LNA1, and among the second ports of the third switch unit SP3T#1, two second ports are Connected to the first switch circuit 130, a second port is connected to the auxiliary receiving port LNA IN1.

In an exemplary example, the first receiving circuit 140 may further include multiple fifth switching units 141 and multiple third filtering units 1133 . The input end of the third filter unit 1133 can be connected to the first switch circuit 130 correspondingly, and the output end of the third filter unit 1133 can be connected to a second port of the third switch unit 142 or the fifth switch unit 141 correspondingly. For filtering the received mid-band signal, the frequency bands of the mid-band signal output by the third filtering unit 1133 are different.

In an exemplary example, the first port of the fifth switch unit 141 may be connected to the input terminals of part of the low noise amplifier 143 respectively, and the second port of the fifth switch unit 143 may be connected to the first switch circuit 130, or may With the auxiliary receiving port LNA IN, the outputs of the low noise amplifiers 143 (the low noise amplifiers LNA2, LNA3, LNA4 and LNA5 in the embodiment shown in FIG. 4 ) are connected to a second port of the fourth switch unit 144 . Taking the fifth switch unit SP4T#1 as an example, the first port of the fifth switch unit SP4T#1 is connected to the input end of the low noise amplifier LNA2, and among the second ports of the fifth switch unit SP4T#1, three ports are connected to the first port of the low noise amplifier LNA2. A switch circuit 130 is connected, and one port is connected to the auxiliary receiving port LNAIN2.

It should be noted that, in this embodiment of the present application, the first filtering unit 1131 , the second filtering unit 1132 , and the third filtering unit 1133 are not further limited, and may be set according to actual needs.

In one embodiment, the receiving path may include: a first antenna port ANT1 or a second antenna port ANT1, a first switch circuit 130, a third switch unit 142 or a fifth switch unit 141, a low noise amplifier 143, a fourth switch Unit 144, a receiving path formed by any receiving port LNA OUT, and an intermediate frequency auxiliary transmitting port MB TX OUT, an external circuit 10 (such as a first intermediate frequency duplexer with a preset first intermediate frequency), an auxiliary receiving The port LNA IN, the low noise amplifier 143, the fourth switch unit 144, and another receiving path formed by any receiving port LNA OUT, and other external circuits (not shown in the figure), the third switch unit 142, the low The noise amplifier 143, the fourth switch unit 144, and any receiving port LNA OUT form another receiving path together.

In an exemplary example, as shown in FIG. 4 , the first switch circuit 130 includes a first switch unit 131 . In one embodiment, the first switch unit 131 may be a multi-channel selection switch 131 such as a DP7T. A first port of the first switch unit 131 is connected to the first antenna port ANT1, and the other first port is connected to the second antenna port ANT2; part of the second ports of the first switch unit 131 are respectively connected to a plurality of first filter units 1131 , a plurality of second filtering units 1132 and a plurality of third filters 1133 are connected. In an exemplary example, the radio frequency MHB L-PA Mid device is further provided with a high frequency transmit port HBRFIN, a 2G high frequency transmit port 2G HB IN, and a high frequency auxiliary transmit port HB TXOUT connected with an external switching circuit, a plurality of auxiliary transmit ports The transceiver port TRX, the radio frequency MHB L-PA Mid device further includes a third transmitting circuit 160 and a second switching circuit 170 . In an exemplary example, the third transmission circuit 160 may be composed of a power amplifier and a switch unit.

In an exemplary example, the input terminal of the third transmitting circuit 160 is connected to the high-frequency transmitting port HB RFIN, the multiple output ports of the third transmitting circuit 160 are connected to the multiple second ports of the first switching circuit 130, and the first One output port of the three transmitting circuits 160 is connected to the high-frequency auxiliary transmitting port HB TX OUT, and multiple output ports of the third transmitting circuit 160 are connected to multiple input ports of the first receiving circuit 140. The third transmitting circuit 160 is used for The received high-frequency signals are amplified; among them, the high-frequency signals are 4G signals and 5G signals. Exemplarily, the plurality of high-frequency signals may include signals in frequency bands such as B7, B40, and B41.

In an exemplary example, the second switch circuit 170 may include a seventh switch unit 171 such as SP3T, a first port of the seventh switch unit 171 is connected to a second port of the first switch circuit 130 , and the seventh switch unit 171 The second port is connected with multiple auxiliary transceiver ports TRX and 2G high frequency transmit port 2G HB IN. An auxiliary transceiver port TRX is connected to a second end of the first switch circuit 130 .

It should be noted that, in the embodiments of the present application, the switch units in the figures are only some examples, and are not used to limit the number and types of switches included in the switch units. The switch units in the embodiments of the present application can be based on The number of circuits it is connected to is set.

In an exemplary example, the first radio frequency MHB L-PA Mid device is further provided with a coupling output port CPLOUT2, and the radio frequency MHB L-PA Mid device further includes a coupling circuit 183, which is provided between the first intermediate frequency power amplifier 111 and the intermediate frequency auxiliary transmission In the radio frequency path between the ports MB TX OUT, it is used to couple the intermediate frequency signal in the radio frequency path, so as to output the coupled signal through the coupling output port CPLOUT2.

In an exemplary example, the first radio frequency MHB L-PA Mid device is further provided with a coupling output port CPLOUT1 , and the radio frequency MHB L-PA Mid device further includes a first coupling unit 181 , a second coupling unit 182 and a coupling switch 184 . The first coupling unit 181 can be coupled in the radio frequency path between the first switch unit 131 and the first antenna port ANT1, and is used for coupling the radio frequency signal in the radio frequency path, so as to output the first coupling end through the coupling end of the first coupling unit 181. A coupling signal; the second coupling unit 182 can be coupled in the radio frequency path between the first switch unit 131 and the second antenna port ANT2 for coupling the radio frequency signal in the radio frequency path to pass through the coupling port of the second coupling unit 172 Output the second coupling signal; the coupling switch 184 is respectively connected with the coupling end of the first coupling unit 181, the coupling end of the second coupling unit 182 and the coupling output port CPLOUT1, for selectively outputting the first coupling signal or the second coupling signal to Coupling output port CPLOUT1.

In an exemplary example, the first radio frequency MHB L-PA Mid device may further include: a first controller 191 and a second controller 192 . The first controller 191 is respectively connected to each switch unit and each power amplifier in the radio frequency MHB L-PA Mid device, and is used to control the on-off of each switch unit and control the working state of each power amplifier. The second controller 192 may be connected to each of the low-noise amplifiers for adjusting the gain coefficient of each of the low-noise amplifiers.

The first controller 191 and the second controller 192 may be a mobile industry processor interface (MIPI, MobileIndustry Processor Interface)-radio frequency front-end control interface (RFFE, RF Front End Control Interface) control unit or a radio frequency front-end control interface (RFFE, RF Front End Control Interface) control unit, which conforms to the control protocol of the RFFE bus. When the first controller 191 and the second controller 192 are MIPI-RFFE control units or RFFE control units, the radio frequency MHB L-PA Mid device is further provided with an input pin CLK for a clock signal, an input for a uni/bidirectional data signal or Bidirectional pin SDATAS, power supply pin VDD, reference voltage pin VIO, etc., are used to control the power amplifier, each switch unit and low noise amplifier in the RF MHB L-PA Mid device.

Based on the miniaturization development trend of mainboards of terminal equipment, the embodiment of the present application provides a first radio frequency MHB L-PAMid device, the composition of which is shown in FIG. 4 . The whole chip integrates multi-band transmit and receive channels, including B1/N1, B3/N3, B66, B25, B34, B39, B7, B40, B41 and 2G HB GSM, as well as 3 auxiliary transceiver ports TRX and 6 Auxiliary receiving port LNA IN extended in external frequency band.

Based on the first radio frequency MHB L-PA Mid device shown in FIG. 4 , a non-standalone networking mode can be supported. Exemplarily, to implement 4G and 5G dual connections, the first intermediate frequency band may be, for example, the B3 frequency band, and the second intermediate frequency band may be an EN-DC combination of B3+N1 such as the N1 frequency band.

The transmission path of the B3 frequency band is as follows:

The first intermediate frequency transmission port MB RFIN1→the first intermediate frequency power amplifier 111→the intermediate frequency auxiliary transmission port MBTX OUT→the first intermediate frequency duplexer 10→antenna.

The receive path of the B3 band is as follows:

Antenna→first mid-band duplexer 10→auxiliary receiving port LNA IN6→low noise amplifier LNA6→contact 6 of the fourth switch unit 144→receiving port LNA OUT6→radio frequency transceiver.

The transmission path of the N1 frequency band is as follows:

The second intermediate frequency transmitting port MB RFIN2→the second intermediate frequency power amplifier 121→the contact 1 of the second switching unit 122→the contact 4 of the second switching unit 122→the first filtering unit 1131→the contact 4 of the first switching unit 131 →Contact 1 of the first switch unit 131 →First antenna port ANT1.

The receive path of the N1 band is as follows:

The first antenna port ANT1→the contact 1 of the first switch unit 131→the contact 4 of the first switch unit 131→the third filter unit 1133→a third switch unit 142 (eg SP3T#1)→the low noise amplifier LNA1→ Contact 1 of the fourth switch unit 144→receiving port LNA OUT1→radio frequency transceiver.

The first radio frequency MHB L-PA Mid device provided by the embodiment of the present application can support the non-independent networking mode without the need for an external multi-mode and multi-frequency power amplifier device, which reduces the area occupied by the PCB and improves the integration degree of the radio frequency device. The cost is reduced, and after integration, the power supply, transmission control and other wirings are reduced, and the complexity of the single board layout is reduced, thereby improving the performance of the radio frequency transceiver system and communication equipment.

In order to meet the requirements of the 5G MB MIMO function, an embodiment of the present application further provides a radio frequency transceiver system, and the radio frequency transceiver system uses the first radio frequency MHB L-PA Mid device and a low frequency front-end module (LFEM, LFrontend Module) provided by the embodiment of the present application. )accomplish. The LFEM device in the embodiment of the present application includes at least: a mid-high frequency antenna port MHB ANT, two auxiliary receiving ports LNA AUX IN, at least three mid-high frequency receiving ports LNA OUT MHB, and corresponding receiving circuits and switch circuits for at least Diversity reception processing of multiple IF signals is supported. It should be noted that the specific implementation of the LFEM device is not intended to limit the protection scope of the present application.

FIG. 5 is a schematic structural diagram of the first embodiment of the first radio frequency transceiver system in the embodiment of the application. As shown in FIG. 5 , the first radio frequency transceiver system at least includes: a first antenna ANT1, a second antenna ANT2, a third antenna ANT3, The fourth antenna ANT4, the radio frequency transceiver 40, the external circuit 10, the first radio frequency front-end device (such as the first radio frequency MHB L-PA Mid device 50) and the LFEM device 60, the first radio frequency front-end device (such as the first radio frequency MHB L-PA Mid device 50) in any of the foregoing embodiments in FIG. 1 to FIG. The second combiner 82 , the fourth combiner 84 , the first filter 71 , the second filter 72 and the third filter 73 . in,

The radio frequency transceiver 40 is connected to the first antenna ANT1 via the radio frequency MHB L-PA Mid device 50 to form a transmission channel of the intermediate frequency signal including at least the second intermediate frequency signal and the main set of the intermediate frequency signal at least including the second intermediate frequency signal. receive channel;

The radio frequency transceiver 40 is connected to the second antenna ANT2 through the radio frequency MHB L-PA Mid device 50, the external circuit 10, the first filter 71 and the second combiner 82, and constitutes the transmission channel of the first intermediate frequency signal, the first intermediate frequency signal transmission channel, and the first intermediate frequency signal. a main set of receiving channels for frequency band signals, and a main set of MIMO receiving channels for second mid-band signals;

The radio frequency transceiver 40 is connected to the third antenna ANT3 via the LFEM device 60 to form a diversity receiving channel of the mid-band signal including at least the second mid-band signal;

The radio frequency transceiver 40 is connected to the fourth antenna ANT4 via the LFEM device 60, the second filter 72, the third filter 73 and the fourth combiner 84 to form a diversity receiving channel of the first intermediate frequency signal and the second intermediate frequency Signal diversity MIMO receive channel;

Wherein, the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.

In an exemplary example, the first mid-band signal is a 4G mid-band signal, and the second mid-band signal is a 5G NR mid-band signal, forming an EN-DC combination. In an embodiment, the first intermediate frequency band is the B3 frequency band, and the second intermediate frequency band is the N1 frequency band. In an embodiment, the first intermediate frequency band is the B1 frequency band, and the second intermediate frequency band is the N3 frequency band.

In an embodiment, the first antenna ANT1 may be used for the transmission and main set reception of the second intermediate frequency band signal, and the first antenna ANT1 is connected to the first antenna port ANT1 of the radio frequency MHB L-PA Mid device 50 . The second antenna ANT2 can be used for the transmission and main set reception of the first intermediate frequency band signal, and the main set MIMO reception of the second intermediate frequency band signal. The second antenna ANT2 is connected to the second end of the second combiner 82, and the second A first port of the combiner 82 is connected to an auxiliary receiving port LNA IN5 of the radio frequency MHBL-PA Mid device 50 through the first filter 71, and is used for the main set MIMO reception of the second mid-band signal. The second combiner The other first port of 82 is connected to the common port of the external circuit 10, and one output port of the external circuit 10 is connected to the intermediate frequency auxiliary transmission port MB TX OUT of the radio frequency MHB L-PA Mid device 50, which is used for the transmission of the first intermediate frequency signal. For transmission, the other output port of the external circuit 10 is connected to an auxiliary receiving port LNA IN6 of the radio frequency MHB L-PA Mid device 50 for the main set reception of the first mid-band signal. The third antenna ANT3 may be used to implement diversity reception of the second mid-frequency signal, and the third antenna ANT3 is connected to the mid-high frequency antenna port MHB ANT of the LFEM device 60 . The fourth antenna ANT4 can be used to implement diversity reception of the first intermediate frequency band signal and diversity MIMO reception of the second intermediate frequency band signal. The fourth antenna ANT4 is connected to the second end of the fourth combiner 84, and the fourth combiner 84 A first port of the LFEM device 60 is connected to an auxiliary receiving port LNA AUX IN1 of the LFEM device 60 through the second filter 72 for diversity MIMO reception of the second mid-band signal, and another first port of the fourth combiner 84 passes through The third filter 73 is connected to another auxiliary receiving port LNA AUX IN5 of the LFEM device 60 for diversity reception of the first intermediate frequency band signal. It should be noted that the port in the embodiment is only an example, and is not used to limit the protection scope of the present application.

In an exemplary embodiment, the external circuit 10 is a switching circuit, and the switching circuit is respectively connected to the intermediate frequency auxiliary transmit port MB TX OUT, an auxiliary receive port LNA IN6 and the second combiner 82 . In one illustrative example, external circuit 10 is a first mid-band duplexer. In one embodiment, the first mid-band duplexer is a B3 duplexer. In one embodiment, the first IF duplexer is a B1 duplexer.

In the first radio frequency transceiver system provided by the embodiments of the present application, on the one hand, since a multi-mode and multi-frequency power amplifier is integrated in the first radio frequency front-end device, the non-independent networking mode can be supported without an external multi-mode and multi-frequency power amplifier device. , reducing the PCB footprint; on the other hand, due to the improved integration of radio frequency devices, the cost is reduced; moreover, through integration, the wiring of power supply, transmission control, etc. is reduced, and the complexity of the single-board layout is reduced. Thus, the performance of the radio frequency transceiver system is improved.

In an exemplary example, an embodiment of the present application further provides a radio frequency transceiver system. As shown in Figures 5-6, the radio frequency transceiver system may include an antenna group, a radio frequency MHB L-PA Mid device 50, a radio frequency transceiver 40, a LFEM device 60, an external circuit 10, a plurality of filters, a plurality of switch modules, and a plurality of Combiner.

The antenna group includes a first antenna ANT1, a second antenna ANT2, a third antenna ANT3 and a fourth antenna ANT4. The first antenna ANT1, the second antenna ANT2, the third antenna ANT3, and the fourth antenna ANT4 are all antennas capable of supporting the 4G frequency band and the 5G NR frequency band. In one embodiment, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may be directional antennas or non-directional antennas. Exemplarily, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may be formed using any suitable type of antenna. For example, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may include antennas with resonant elements formed by the following antenna structures: array antenna structure, loop antenna structure, patch antenna structure, slot antenna At least one of a structure, a helical antenna structure, a strip antenna, a monopole antenna, a dipole antenna, and the like. Different types of antennas can be used for different frequency band combinations of RF signals.

The radio frequency MHB L-PA Mid device 50 is used for supporting the transceiving and processing of radio frequency signals of multiple intermediate frequency bands and supporting the non-independent networking mode, at least supporting the transceiving processing of the first intermediate frequency band signal and the transceiving processing of the second intermediate frequency band signal . The main set of MIMO receiving and processing of the second intermediate frequency band signal. The radio frequency LB L-PA Mid device 50 may be the first radio frequency MHB L-PA Mid device in any of the foregoing embodiments in FIG. 1 to FIG. 4 . Exemplarily, the frequency bands of the multiple mid-band signals may at least include B1, B3, B25, B34, B66, B39, N1, and N3 frequency bands, wherein the preset first mid-frequency band may include, but not limited to, frequency bands such as B3 or B1, The preset second intermediate frequency band may include, but is not limited to, frequency bands such as N1 or N3.

The LFEM device 60 is configured with at least a medium and high frequency antenna port MHB ANT, two auxiliary receiving ports LNA AUXIN, at least three medium and high frequency receiving ports LNA OUT MHB, and corresponding receiving circuits and switching circuits, at least for supporting the first medium and high frequency receiving ports. Diversity reception processing of frequency band signals, diversity reception processing of second intermediate frequency band signals, and diversity MIMO reception processing of second intermediate frequency band signals. It should be noted that the specific implementation of the LFEM device 60 is not intended to limit the protection scope of the present application.

The first radio frequency transceiver system shown in FIG. 6 further includes a radio frequency front-end device for supporting the transceiver processing of multiple low-frequency radio frequency signals. As shown in FIG. 6 , the radio frequency front-end device may be a radio frequency LB PA Mid device. It should be noted that the specific implementation of the radio frequency LB PA Mid device in the embodiments of the present application is not used to limit the protection scope of the present application.

FIG. 6 is a schematic structural diagram of a second embodiment of the first radio frequency transceiver system in the embodiment of the application. Based on the radio frequency transceiver system shown in FIG. 6 and in combination with FIGS. 4 and 5 , the preset first intermediate frequency band is the B3 frequency band, The working principle of the B3+N1 EN-DC is analyzed by taking the default second intermediate frequency band as the N1 frequency band as an example.

B3 TX link: the transmit signal (B3 TX1) of the first intermediate frequency signal is output from the TX1 MB port of the radio frequency transceiver 40, via the radio frequency line, to the first intermediate frequency transmit port MB RFIN1 port of the radio frequency MHB L-PA Mid device 50 (represented as 4G MB RFIN1 in FIG. 6 ); after amplifying the signal by the first intermediate frequency power amplifier 111 (represented as MB 4G PA1 in FIG. 6 ), the signal is output to the intermediate frequency auxiliary transmit port MB TX OUT port; through the Path11 path, to the external circuit 10 is the B3 duplexer Duplexer1 in FIG. 6; after the B3 duplexer Duplexer1 filters the B3 TX1, it goes to the second combiner 82 through Path05; transmitted from the second antenna ANT2.

B3 PRX link: The received signal (B3 RX1) of the first mid-band signal enters from the second antenna ANT2, passes through Path03, and reaches the second combiner 82; after the second combiner 82 is combined, passes through Path05 to the second combiner 82. The external circuit 10 is the B3 duplexer Duplexer1 in FIG. 6 ; after the B3 RX1 is filtered by the B3 duplexer Duplexer1, it is sent to the auxiliary receiving port LNA IN6 of the MHB PA Mid device 50 (represented as LMHB LNA IN2 in FIG. 6 ); After the low noise amplifier 143 is amplified by LNA6 in Figure 6, it goes to the fourth switch unit 144 as the 6P6T switch in Figure 6; 6P6T switches to contact 6, and outputs from the receiving port LNA OUT6; device 40.

B3 DRX link: The diversity received signal (B3 DRX) of the first mid-band signal enters from the fourth antenna ANT4, goes through Path08, and reaches the fourth combiner 84; after the fourth combiner 84 is combined, passes through Path10, to the third filter 73; after the B3 DRX is filtered by the third filter 73, to an auxiliary receiving port LNA AUX IN of the LFEM device 60 (represented as LNA AUXHB4 in FIG. 6); the SP3T#3 switch inside the LFEM device 60 switches Single port, to the low-noise amplifier LNA3 path inside the LFEM device 60; after being amplified by the low-noise amplifier LNA3, to the 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to contact 1, and the medium and high frequency receiving port LNA OUT MHB1 port output ; B3 DRX enters the RF transceiver 40 through the SDR DRX0 port.

N1 TX link: the transmit signal (N1 TX) of the second intermediate frequency signal is output from the TX0 MB port of the radio frequency transceiver 40, via the radio frequency line, to the second intermediate frequency transmit port MB RFIN2 port of the radio frequency MHB L-PA Mid device 50 (represented as 4G MB RFIN2 in FIG. 6 ); after the signal is amplified by the second intermediate frequency power amplifier 121 (represented as MB 4G PA2 in FIG. 6 ), the second switch unit 122 is the 3P5T switch in FIG. 6 ; the 3P5T switch is switched to Contact 4, after being filtered by N1 TX Filter, goes to the first switch unit 131 (the DP7T switch in FIG. 6 ); the DP7T switch is switched to contact 1, which is output from the first antenna port ANT1; it goes through Path02 to the first switch unit 131. Combiner 81; After the first combiner 81 is combined, N1 TX is transmitted from the first antenna ANT1 via the Path01 path.

N1 PRX link: The received signal (N1 PRX) of the second mid-band signal enters from ANT1 on the first day, passes through Path01, and reaches the first combiner 81; after the first combiner 81 is combined, it passes through Path02. To the first antenna port ANT1 of the MHB PA Mid device 50; the first switch unit 131 (the DP7T switch in FIG. 6) is switched to the contact 4, and after being filtered by N1 RX, to a third switch of the first receiving circuit 140 unit 142 (the SP3T#1 switch shown in FIG. 6 ); the SP3T#1 switch switches the single port to a path of a low noise amplifier 143 (LNA1 in the RF MHB L-PA Mid device 50 in FIG. 6 ); After the low-noise amplifier LNA1 is amplified, it goes to the fourth switch unit 144 (the 6P6T switch in Figure 6); the 6P6T switch is switched to the contact 1, and is output to a receiving port LNA OUT (the LNA OUT1 in Figure 6); N1 PRX Enter the radio frequency transceiver 40 through the SDR PRX0 port.

N1 DRX link: The diversity received signal (N1 DRX) of the second mid-band signal enters from the third antenna ANT3, goes through the Path06 path, to the third combiner 83; after the third combiner 83 is combined, it goes through the Path07 path , to the mid-high frequency antenna port MHB ANT of the LFEM device 60; the SP8T switch inside the LFEM device 60 switches to contact 5, and after filtering by N1 RX, to the SPDT switch inside the LFEM device 60; the SPDT switch inside the LFEM device 60 switches the single Port, to the low-noise amplifier LNA4 path inside the LFEM device 60; after being amplified by the low-noise amplifier LNA4, to the low-noise amplifier 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to contact 2, to the medium and high frequency receiving port LNA OUT MHB2 Port output; N1 DRX enters the radio frequency transceiver device 40 through the SDR DRX2 port.

N1 PRX MIMO link: The main set of MIMO received signals (N1 PRX MIMO) of the second mid-band signal enters from the second antenna ANT2, goes through the Path03 path, and reaches the second combiner 82; after the second combiner 82 is combined , through the Path04 path, to the first filter 71; after the N1 PRX MIMO is filtered by the first filter 71, to an auxiliary receiving port LNA IN5 of the MHB PA Mid device 50 (represented as LMHB LNA IN1 in FIG. 6); After being amplified by a low noise amplifier 143 (LNA5 shown in FIG. 6 ), it goes to the fourth switch unit 144 (6P6T switch shown in FIG. 6 ); LNA OUT5 in 6) output; N1 PRX MIMO enters the radio frequency transceiver 40 through the SDR PRX1 port.

N1 DRX MIMO link: The diversity MIMO received signal (N1 DRX MIMO) of the second mid-band signal enters from the fourth antenna ANT4, passes through the Path08 path, and reaches the fourth combiner 84; after the fourth combiner 84 is combined, After the path of Path09, to the second filter 72; after the N1 DRX MIMO is filtered by the second filter 72, it is sent to an auxiliary receiving port LNA AUXIN of the LFEM device 60 (represented as LNA AUX LMB in FIG. 6); The SP3T#5 switch switches the single port to the low-noise amplifier LNA6 channel inside the LFEM device 60; after being amplified by the low-noise amplifier LNA6, it goes to the 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to the contact 4, the medium and high frequency receiving port LNA OUT MHB4 port output; N1 DRX MIMO enters the RF transceiver 40 through the SDRDRX6 port.

Combined with the analysis of the working principle of B3+N1EN-DC above, the frequency band configuration of each antenna port is shown in Table 1.

Table 1

The first radio frequency transceiver system in the example of this application supports a non-independent networking mode. Taking the combination of B3+N1 EN-DC as an example, B3 has two channels of PRX and DRX receiving, and N1 has four channels of PRX, DRX, and PRX MIMO and DRX MIMO. Moreover, in the embodiment of the present application, by integrating the external multi-mode multi-frequency power amplifier device into the first radio frequency front-end device, the PCB occupied area is reduced; on the other hand, due to the improved integration of the radio frequency device, the In addition, through integration, the wiring of power supply, transmission control, etc. is reduced, the complexity of single-board layout is reduced, and the performance of the radio frequency transceiver system is improved. The first radio frequency transceiver system in the example of this application also implements transmit and receive channels for multiple frequency bands, including B1/N1, B3/N3, B66, B25, B34, B39, B7, B40, B41, and 2G HB GSM, and 3 1 auxiliary transceiver port TRX and 6 auxiliary receiving ports LNA IN for external frequency band expansion, which expand the communication frequency band of the radio frequency transceiver system and improve the communication performance of the radio frequency transceiver system.

An embodiment of the present application further provides a communication device, where the first radio frequency transceiver system in the above embodiments is set on the communication device, and by setting the first radio frequency transceiver system in the communication device, the integration of an external multi-mode and multi-frequency power amplifier is realized. In the RF front-end devices, the non-independent networking mode is supported, the integration is improved, and the PCB footprint is reduced; moreover, due to the improvement of the integration of the RF devices, the cost is reduced; moreover, through the integration, the power supply is reduced. , transmission control, etc., which reduces the complexity of the board layout and improves the performance of the communication equipment.

In order to further reduce the area occupied by the PCB, improve the integration degree of the radio frequency device, and reduce the cost, the embodiment of the present application also provides a second radio frequency front-end device. The second radio frequency front-end device integrates the external multi-mode multi-frequency power amplifier device into the radio frequency front-end device. , and also integrates the preset first-band duplexer as an external circuit into the RF front-end device, so that the RF front-end device does not need an external multi-mode multi-frequency power amplifier device and the preset first-band duplexer can also support Non-independent networking mode, and after integration, the wiring of power supply and transmission control is reduced, the complexity of single board layout is reduced, and the performance of RF transceiver system and communication equipment is improved.

FIG. 7 is a schematic structural diagram of the first embodiment of the second radio frequency front-end device in the embodiment of the application, which is used for the main set of antenna radio frequency links. As shown in FIG. 7 , the second radio frequency front-end device is provided with at least a first intermediate frequency transmission port MB. RFIN1, at least one receiving port LNA OUT, at least one auxiliary receiving port LNA IN, intermediate frequency auxiliary transceiver port MB INOUT, intermediate frequency auxiliary receiving port MB RX; wherein, the intermediate frequency auxiliary receiving port MB RX is connected with an auxiliary receiving port LNA IN through a radio frequency line ; The radio frequency front-end device includes at least:

The first transmitting circuit 110 is connected to the first intermediate frequency transmitting port MB RFIN1 and the switching circuit 150, and is used for amplifying the first intermediate frequency signal from the first intermediate frequency transmitting port MB RFIN1 and passing the intermediate frequency auxiliary transceiver port through the switching circuit 150. MB INOUT output;

The switching circuit 150 is connected to the first transmitting circuit 110, the intermediate frequency auxiliary transceiver port MB INOUT, and the intermediate frequency auxiliary receiving port MB RX, and is used for separating the transceiver paths according to the transceiver signal direction of the first intermediate frequency band signal to realize single-antenna bidirectional communication;

The first receiving circuit 140 is connected to the receiving port LNA OUT and the auxiliary receiving port LNA IN, and is used for receiving the first receiving circuit from the auxiliary receiving port LNA IN connected to the intermediate frequency auxiliary receiving port MB RX through the intermediate frequency auxiliary receiving and transmitting port MB INOUT. The mid-band signal is amplified and output to a receiving port LNA OUT;

Wherein, the first mid-band signal is one of the preset mid-band signals in the non-standalone networking mode.

In an exemplary example, the second radio frequency front-end device is further provided with a second intermediate frequency transmit port MB RFIN2 and a first antenna port ANT1; the second radio frequency front-end device shown in FIG. 7 further includes:

The first switch circuit 130, a plurality of second ports of the first switch circuit 130 are respectively connected to the second transmitting circuit 120 and the first receiving circuit 140, a first port of the first switch circuit 130 is connected to the first antenna port ANT1, for selectively conducting the radio frequency paths between the second transmitting circuit 120 and the first receiving circuit 140 and the first antenna port ANT1;

The second transmitting circuit 120 is connected to the second intermediate frequency transmitting port MB RFIN2, and is used for amplifying at least the second intermediate frequency signal among the plurality of intermediate frequency signals from the second intermediate frequency transmitting port MB RFIN2;

The first receiving circuit 140 is also connected to the second transmitting circuit 120, and is also used for amplifying at least the second intermediate frequency signal in the plurality of intermediate frequency signals from the radio frequency channel and outputting it to a receiving port LNA OUT, for the signal from the radio frequency channel. The main set of MIMO signals of the second mid-band signal of the other auxiliary receiving port is amplified and output to a receiving port;

Wherein, the second mid-band signal is another preset mid-band signal in the non-standalone networking mode.

In an exemplary example, the switching circuit 150 may be a first mid-band duplexer, wherein the preset first mid-band is the frequency band where the first mid-band signal is located. The first mid-band duplexer is a three-port radio frequency device, which is used to separate the send and receive paths according to the direction of the send and receive signals of the first mid-band signal. Antenna two-way communication.

In an exemplary example, the common port of the preset first intermediate frequency duplexer is connected to the intermediate frequency auxiliary transceiver port MBINOUT, for transmitting or receiving the first intermediate frequency band signal through an antenna connected to the intermediate frequency auxiliary transceiver port MBINOUT; It is preset that one of the output ports of the first intermediate frequency duplexer is connected to the output terminal of the first transmitting circuit 110 for outputting the first intermediate frequency signal; the other output port of the first intermediate frequency duplexer is preset to be connected to the intermediate frequency The auxiliary receiving port MB RX is connected to output the first intermediate frequency signal received through the common port of the preset first intermediate frequency duplexer. By presetting the first intermediate frequency band duplexer, filtering and isolation of the preset first intermediate frequency band transmission signal and the preset first intermediate frequency band receiving signal are realized.

The second radio frequency front-end device provided by the embodiment shown in FIG. 7 of the present application supports reception and transmission of intermediate frequency signals of multiple different frequency bands and supports a non-independent networking mode. The plurality of mid-band signals may include mid-band signals of different frequency bands among 4G signals, 5G NR signals, or 6G signals. Exemplarily, the frequency bands of the multiple mid-band signals include at least B1, B25, B34, B66, B39, and N3 frequency bands, as well as a preset first intermediate frequency band and a preset second intermediate frequency band. In an embodiment, the preset first intermediate frequency band may include but is not limited to one of the following: B3, B1 and other frequency bands, and correspondingly, the preset second intermediate frequency band may include but not limited to one of the following: N1, N3, etc. frequency band. In an embodiment, the preset first intermediate frequency band may include, but is not limited to, one of the following: N1, N3 and other frequency bands, and correspondingly, the preset second intermediate frequency band may include but not limited to one of the following: B3, B1, etc. frequency band.

In order to avoid redundant description, only the different parts of the second radio frequency front-end device and the first radio frequency front-end device will be described below, and the same parts will not be repeated.

The second radio frequency front-end device shown in FIG. 7 can be understood as a package structure. As shown in FIG. 7 , the second radio frequency front-end device is provided with a first intermediate frequency transmitting port MB RFIN1 and a second intermediate frequency transmitting port MBRFIN2, which are used to connect the radio frequency transceiver. At least two receiving ports LNA OUT are used for connecting to the first antenna port ANT1 of the antenna, the intermediate frequency auxiliary transceiver port MB INOUT, the intermediate frequency auxiliary receiving port MB RX and the at least one auxiliary receiving port LNA IN. The receiving port LNAOUT, the first intermediate frequency transmitting port MB RFIN1, the second intermediate frequency transmitting port MB RFIN2, the first antenna port ANT1, the intermediate frequency auxiliary transceiver port MB INOUT, the intermediate frequency auxiliary receiving port MB RX and the auxiliary receiving port LNA IN can be understood as The RF pin terminal of the RF front-end device is used to connect with various external devices. In one embodiment, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1 and the second intermediate frequency transmitting port MB RFIN2 can be used to connect with a radio frequency transceiver; the first antenna port ANT1 can be used to connect to an antenna, and can The plurality of mid-band signals including the second mid-band signal processed by the second RF front-end device are output to the antenna, and the plurality of mid-band signals including the second mid-band signal received by the antenna can also be transmitted to the second RF front-end device; the intermediate frequency auxiliary transceiver port MB INOUT can be used to connect with another antenna, used to output the first intermediate frequency signal processed by the second radio frequency front-end device to the antenna, and can also receive and input the first intermediate frequency received by the antenna. The signal is transmitted to the second radio frequency front-end device through the auxiliary receiving port LNA IN connected to the intermediate frequency auxiliary receiving port MB RX, so as to realize the transmission and reception of the first intermediate frequency band signal.

In an exemplary example, as shown in FIG. 7 , the second radio frequency front-end device may include: a first transmitting circuit 110 , a switching circuit 150 , a second transmitting circuit 120 , a first receiving circuit 140 and a first switching circuit 130 .

In an exemplary example, as shown in FIG. 7 , the input end of the first transmitting circuit 110 is connected to the first intermediate frequency transmitting port MB RFIN1 to amplify the first intermediate frequency band signal received by the first intermediate frequency transmitting port MB RFIN1 The output end of the first transmitting circuit 110 is connected with one of the output ports of the switching circuit 150, the common port of the switching circuit 150 is connected with the intermediate frequency auxiliary transceiver port MB INOUT, and the amplified first intermediate frequency signal is passed through the switching circuit 150 IF Auxiliary transceiver port MB INOUT output. The first transmission circuit 110 may be provided with a transmission path to support the transmission of the first intermediate frequency band signal. Exemplarily, the frequency band corresponding to the first intermediate frequency band signal may include, for example, the B3 or B1 frequency band, or may include, for example, the N1 or N3 frequency band. In an embodiment, the first transmission channel may include a transmission channel formed by a first intermediate frequency transmission port MB RFIN1, a first transmission circuit 110, a switching circuit 150, an intermediate frequency auxiliary transceiver port MB INOUT, and an antenna.

In an exemplary example, as shown in FIG. 7 , for the implementation of the second transmitting circuit 120 and the first receiving circuit 140 , reference may be made to the relevant description in FIG. 1 , which will not be repeated here.

The second RF front-end device shown in FIG. 7 of the present application is used for the main antenna RF link, and it no longer needs external multi-mode multi-frequency power amplifier devices and duplexers to support the non-independent networking mode, reducing PCB occupation The area improves the integration of RF devices and reduces costs. After integration, power supply, transmission control and other wiring are reduced, and the complexity of single-board layout is reduced, thereby improving the performance of RF transceiver systems and communication equipment.

FIG. 8 is a schematic structural diagram of a second embodiment of a second radio frequency front-end device according to an embodiment of the present application. For specific implementation, reference may be made to the description in FIG. 2 , which will not be repeated here.

FIG. 9 is a schematic structural diagram of a third embodiment of the second radio frequency front-end device in the embodiment of the application. For the specific implementation, refer to the description in FIG. 3 , which will not be repeated here. Unlike the embodiment shown in FIG. The coupling circuit 183 in the embodiment is arranged in the radio frequency path between the switching circuit 150 and the intermediate frequency auxiliary transceiver port MB INOUT.

The second radio frequency front-end device provided in this embodiment of the present application may also be a radio frequency L-PA Mid device. The RF L-PA Mid device can support the reception and transmission of intermediate frequency signals and high frequency signals of multiple different frequency bands, and realize the control of reception switching, transmission switching control, and switching control between transmission and reception among multiple intermediate frequency signals. , and realize the control of reception switching, transmission switching control, and switching control between transmission and reception among multiple high-frequency signals, and support non-independent networking mode. The plurality of medium and high frequency signals may include medium and high frequency signals in different frequency bands among 4G signals and 5GNR signals. Specifically, the frequency bands of the multiple intermediate frequency signals may include B1, B3, B25, B34, B66, B39, N1 and N3 frequency bands. The frequency bands of the plurality of high frequency signals may include B30, B7, B40, B41, N7 and N41. Therefore, the radio frequency L-PAMid device in the embodiments of the present application may also be referred to as MHB L-PA Mid.

FIG. 10 is a schematic structural diagram of an embodiment of a second radio frequency MHB L-PA Mid device in an embodiment of the application. As shown in FIG. 10 , the second radio frequency MHB L-PA Mid device is provided with a first intermediate frequency transmitter for connecting to a radio frequency transceiver Port MBRFIN1, a second IF transmit port MB RFIN2, at least two receive ports LNA OUT, a first antenna port ANT1 for connecting an antenna, an IF auxiliary transceiver port MB INOUT, an IF auxiliary receive port MB RX and at least one auxiliary receive port LNA IN. The receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, the second intermediate frequency transmitting port MBRFIN2, the intermediate frequency auxiliary transceiver port MB INOUT, the intermediate frequency auxiliary receiving port MB RX, the first antenna port ANT1, and the auxiliary receiving port LNA IN can be understood as The RF pin terminal of the second RF LB L-PA Mid device is used for connecting with external devices. In an embodiment, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, and the second intermediate frequency transmitting port MB RFIN2 can be used to connect to the radio frequency transceiver; the first antenna port ANT1 can be used to connect to the antenna, and The second RF MHB L-PA Mid device outputs a plurality of mid-band signals including the second mid-band signal to the antenna, and can also transmit the plurality of mid-band signals including the second mid-band signal received by the antenna to the antenna. Two radio frequency MHB L-PA Mid devices; the intermediate frequency auxiliary transceiver port MB INOUT can be used to connect with another antenna to output the first intermediate frequency band signal processed by the second radio frequency MHBL-PA Mid device to the antenna, and can also The first mid-band signal received by the antenna is transmitted to the second radio frequency MHB L-PAMid device through the auxiliary receiving port LNA IN connected to the intermediate-frequency auxiliary receiving port MB RX, so as to realize the separation and receiving and sending of the first mid-band signal.

In an exemplary example, as shown in FIG. 10 , the first transmitting circuit 110 may include: a first intermediate frequency power amplifier 111 , the input end of the first intermediate frequency power amplifier 111 is connected to the first intermediate frequency transmitting port MB RFIN1 , and the first intermediate frequency power amplifier 111 is connected to the first intermediate frequency transmitting port MB RFIN1 . The output end of the intermediate frequency power amplifier 111 is connected to the switching circuit 150 for performing power amplification processing on the first intermediate frequency band signal received through the first intermediate frequency transmitting port MB RFIN1. In one embodiment, the first intermediate frequency band signal may include a B3 or B1 frequency band signal. In an exemplary example, as shown in FIG. 10 , the switching circuit 150 may include at least a first IF duplexer 151 , and the common port of the first IF duplexer 151 is connected to the IF auxiliary transceiver port MB INOUT, The amplified first mid-band signal is passed through the first mid-band duplexer 151 through the intermediate frequency auxiliary transceiver port MB INOUT. In an embodiment, the first transmission path may include: a first intermediate frequency transmission port MB RFIN1, a first intermediate frequency power amplifier 111, a first intermediate frequency duplexer 151, an intermediate frequency auxiliary transceiver port MB INOUT, and a transmission composed of an antenna. path.

In an exemplary example, as shown in FIG. 10 , the second radio frequency MHB L-PA Mid device is further provided with a second antenna port ANT2 , which is connected to a first port of the first switch circuit 130 . For the implementation of the second transmitting circuit 120 and the first receiving circuit 140 , reference may be made to the relevant description in FIG. 4 , which will not be repeated here. The difference from the embodiment shown in FIG. 4 is that the input end of a low noise amplifier 143 (the low noise amplifier LNA6 in the embodiment shown in FIG. 10 ) is connected to the auxiliary receiving port LNA IN ( The auxiliary receiving port LNA IN6) in the embodiment shown in FIG. 4 is connected. In one embodiment, the receiving path may include: a first antenna port ANT1 or a second antenna port ANT1, a first switch circuit 130, a third switch unit 142 or a fifth switch unit 141, a low noise amplifier 143, a fourth switch The unit 144, a receiving path formed by any receiving port LNA OUT, and the intermediate frequency auxiliary receiving port MB RX, the auxiliary receiving port LNAIN, a low noise amplifier 143, the fourth switching unit 144, and any receiving port LNA OUT are common Another receiving path formed by other external circuits (not shown in the figure), the third switching unit 142, the low noise amplifier 143, the fourth switching unit 144, and any receiving port LNA OUT. receive path.

In an exemplary example, as shown in FIG. 10 , for the implementation of the first switch circuit 130 , the third transmission circuit 160 and the second switch circuit 170 , reference may be made to the relevant descriptions in FIG. 4 , which will not be repeated here.

It should be noted that, in the embodiments of the present application, the switch units in the figures are only some examples, and are not used to limit the number and types of switches included in the switch units. The switch units in the embodiments of the present application can be based on The number of circuits it is connected to is set.

In an exemplary example, the second radio frequency MHB L-PA Mid device is further provided with a second coupling output port CPLOUT2, and the radio frequency MHB L-PA Mid device further includes a coupling circuit 183, which is provided between the first intermediate frequency power amplifier 111 and the intermediate frequency The radio frequency path between the auxiliary transceiver ports MB INOUT is used for coupling the mid-frequency signal in the radio frequency path, so as to output the coupled signal through the coupling output port CPLOUT2. In an exemplary example, the radio frequency MHB L-PA Mid device is further provided with a coupling output port CPLOUT1 , and the radio frequency MHB L-PA Mid device further includes a first coupling unit 181 , a second coupling unit 182 and a coupling switch 184 . For specific implementation, reference may be made to the related description of the first radio frequency MHB L-PA Mid device, which will not be repeated here.

In an exemplary example, the second radio frequency MHB L-PA Mid device may further include: a first controller 191 and a second controller 192 . The first controller 191 is respectively connected to each switch unit and each power amplifier in the radio frequency MHB L-PA Mid device, and is used to control the on-off of each switch unit and control the working state of each power amplifier. The second controller 192 may be connected to each of the low-noise amplifiers for adjusting the gain coefficient of each of the low-noise amplifiers. For specific implementation, reference may be made to the related description of the first radio frequency MHB L-PA Mid device, which will not be repeated here.

Based on the miniaturization development trend of the mainboard of the terminal equipment, the embodiment of the present application provides a second radio frequency MHB L-PAMid device, the composition of which is shown in FIG. 10 . The whole chip integrates multi-band transmit and receive channels, including B1/N1, B3/N3, B66, B25, B34, B39, B7, B40, B41 and 2G HB GSM, as well as 3 auxiliary transceiver ports TRX and 6 Auxiliary receiving port LNA IN extended in external frequency band.

Based on the second radio frequency MHB L-PA Mid device as shown in Figure 10, a non-standalone networking mode can be supported. Exemplarily, to implement 4G and 5G dual connections, the first intermediate frequency band may be, for example, the B3 frequency band, and the second intermediate frequency band may be an EN-DC combination of B3+N1 such as the N1 frequency band.

The transmission path of the B3 frequency band is as follows:

The first intermediate frequency transmission port MB RFIN1→the first intermediate frequency power amplifier 111→the first intermediate frequency duplexer 151→the intermediate frequency auxiliary transceiver port MB INOUT→antenna.

The receive path of the B3 band is as follows:

Antenna → intermediate frequency auxiliary transceiver port MB INOUT → first intermediate frequency band duplexer 151 → intermediate frequency auxiliary receiving port MB RX → auxiliary receiving port LNA IN6 → low noise amplifier LNA6 → contact 6 of the fourth switch unit 144 → receiving port LNA OUT6 → RF transceiver.

The transmission path of the N1 frequency band is as follows:

The second intermediate frequency transmitting port MB RFIN2→the second intermediate frequency power amplifier 121→the contact 1 of the second switching unit 122→the contact 4 of the second switching unit 122→the first filtering unit 1131→the contact 4 of the first switching unit 131 →Contact 1 of the first switch unit 131 →First antenna port ANT1.

The receive path of the N1 band is as follows:

The first antenna port ANT1→the contact 1 of the first switch unit 131→the contact 4 of the first switch unit 131→the third filter unit 1133→a third switch unit 142 (eg SP3T#1)→the low noise amplifier LNA1→ Contact 1 of the fourth switch unit 144→receiving port LNA OUT1→radio frequency transceiver.

The second radio frequency MHB L-PA Mid device provided by the embodiment of the present application can support the non-independent networking mode without external multi-mode and multi-frequency power amplifier devices and duplexers, which reduces the area occupied by the PCB and improves the performance of the radio frequency device. The integration level is high, and the cost is reduced, and after integration, the power supply, transmission control and other wirings are reduced, the complexity of the board layout is reduced, and the performance of the radio frequency transceiver system and communication equipment is improved.

In order to meet the requirements of the 5G MB MIMO function, the embodiment of the present application further provides a radio frequency transceiver system, and the radio frequency transceiver system is implemented by the second radio frequency MHB L-PA Mid device and the low frequency front-end module (LFEM) device provided by the embodiment of the present application. . The LFEM device in the embodiment of the present application includes at least: a mid-high frequency antenna port MHB ANT, two auxiliary receiving ports LNA AUX IN, at least three mid-high frequency receiving ports LNA OUT MHB, and corresponding receiving circuits and switch circuits for at least Diversity reception processing of multiple IF signals is supported. It should be noted that the specific implementation of the LFEM device 60 is not intended to limit the protection scope of the present application.

FIG. 11 is a schematic structural diagram of the first embodiment of the second radio frequency transceiver system in the embodiment of the application. As shown in FIG. 5 , the second radio frequency transceiver system at least includes: a first antenna ANT1, a second antenna ANT2, a third antenna ANT1, The fourth antenna ANT4, the radio frequency transceiver 40, the second radio frequency front-end device (such as the second radio frequency MHB L-PAMid device 50), the LFEM device 60, and the second combiner 82 in any of the foregoing embodiments in FIG. 7 to FIG. 10 . , a fourth combiner 84 , a first filter 71 , a second filter 72 and a third filter 73 . in,

The radio frequency transceiver 40 is connected to the first antenna ANT1 via the radio frequency MHB L-PA Mid device 50 to form a transmission channel of the intermediate frequency signal including at least the second intermediate frequency signal and the main set of the intermediate frequency signal at least including the second intermediate frequency signal. receive channel;

The radio frequency transceiver 40 is connected to the second antenna ANT2 through the radio frequency MHB L-PA Mid device 50, the first filter 71 and the second combiner 82, and constitutes the transmission channel of the first intermediate frequency signal and the main transmission channel of the first intermediate frequency signal. set receive channels, and the main set of MIMO receive channels for the second mid-band signal;

The radio frequency transceiver 40 is connected to the third antenna ANT3 via the LFEM device 60 to form a diversity receiving channel of the mid-band signal including at least the second mid-band signal;

The radio frequency transceiver 40 is connected to the fourth antenna ANT4 via the LFEM device 60, the second filter 72, the third filter 73 and the fourth combiner 84 to form a diversity receiving channel of the first intermediate frequency signal and the second intermediate frequency Signal diversity MIMO receive channel;

Wherein, the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.

In an exemplary example, the first mid-band signal is a 4G mid-band signal, and the second mid-band signal is a 5G NR mid-band signal, forming an EN-DC combination. In an embodiment, the first intermediate frequency band is the B3 frequency band, and the second intermediate frequency band is the N1 frequency band. In an embodiment, the first intermediate frequency band is the B1 frequency band, and the second intermediate frequency band is the N3 frequency band.

In an embodiment, the first antenna ANT1 may be used for the transmission and main set reception of the second intermediate frequency band signal, and the first antenna ANT1 is connected to the first antenna port ANT1 of the radio frequency MHB L-PA Mid device 50 . The second antenna ANT2 can be used for the transmission and main set reception of the first intermediate frequency band signal, and the main set MIMO reception of the second intermediate frequency band signal. The second antenna ANT2 is connected to the second end of the second combiner 82, and the second A first port of the combiner 82 is connected to an auxiliary receiving port LNA IN5 of the radio frequency MHBL-PA Mid device 50 through the first filter 71, and is used for the main set MIMO reception of the second mid-band signal. The second combiner The other first port of 82 is connected to the intermediate frequency auxiliary transceiver port MB INOUT of the radio frequency MHB L-PA Mid device 50 for transmitting and receiving the first intermediate frequency band signal, and the intermediate frequency auxiliary receiving port of the radio frequency MHB L-PA Mid device 50. The MBRX is connected to an auxiliary receiving port LNA IN6 for receiving the main set of the first mid-band signal. The third antenna ANT3 may be used to implement diversity reception of the second mid-band signal, and the third antenna ANT3 is connected to the mid-high frequency antenna port MHBANT of the LFEM device 60 . The fourth antenna ANT4 can be used to implement diversity reception of the first intermediate frequency band signal and diversity MIMO reception of the second intermediate frequency band signal. The fourth antenna ANT4 is connected to the second end of the fourth combiner 84, and the fourth combiner 84 A first port of the LFEM device 60 is connected to an auxiliary receiving port LNA AUX IN1 of the LFEM device 60 through the second filter 72 for diversity MIMO reception of the second mid-band signal, and another first port of the fourth combiner 84 passes through The third filter 73 is connected to another auxiliary receiving port LNA AUX IN5 of the LFEM device 60 for diversity reception of the first intermediate frequency band signal. It should be noted that the port in the embodiment is only an example, and is not used to limit the protection scope of the present application.

In the second radio frequency transceiver system provided by the embodiments of the present application, on the one hand, since the second radio frequency front-end device integrates a multi-mode and multi-frequency power amplifier and a first intermediate-band duplexer, an external multi-mode and multi-frequency power amplifier device is no longer required. It can support the non-independent networking mode with the preset frequency band duplexer, which reduces the PCB footprint; on the other hand, due to the improved integration of the radio frequency device, the cost is reduced; Transmission control and other traces reduce the complexity of the board layout, thereby improving the performance of the RF transceiver system.

In an exemplary example, an embodiment of the present application further provides a radio frequency transceiver system. As shown in Figures 11-12, the radio frequency transceiver system may include an antenna group, a radio frequency MHB L-PA Mid device 50, a radio frequency transceiver 40, a LFEM device 60, multiple filters, multiple switch modules and multiple combiners.

The antenna group includes a first antenna ANT1, a second antenna ANT2, a third antenna ANT3 and a fourth antenna ANT4. The first antenna ANT1, the second antenna ANT2, the third antenna ANT3, and the fourth antenna ANT4 are all antennas capable of supporting the 4G frequency band and the 5G NR frequency band. In one embodiment, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may be directional antennas or non-directional antennas. Exemplarily, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may be formed using any suitable type of antenna. For example, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may include antennas with resonant elements formed by the following antenna structures: array antenna structure, loop antenna structure, patch antenna structure, slot antenna At least one of a structure, a helical antenna structure, a strip antenna, a monopole antenna, a dipole antenna, and the like. Different types of antennas can be used for different frequency band combinations of RF signals.

The radio frequency MHB L-PA Mid device 50 is used for supporting the transceiving and processing of radio frequency signals of multiple intermediate frequency bands and supporting the non-independent networking mode, at least supporting the transceiving processing of the first intermediate frequency band signal and the transceiving processing of the second intermediate frequency band signal . The main set of MIMO receiving and processing of the second intermediate frequency band signal. Wherein, the radio frequency LB L-PA Mid device 50 may be the second radio frequency MHB L-PA Mid device in any of the foregoing embodiments in FIG. 7 to FIG. 10 . Exemplarily, the frequency bands of the multiple mid-band signals may at least include B1, B3, B25, B34, B66, B39, N1, and N3 frequency bands, wherein the preset first mid-frequency band may include, but not limited to, frequency bands such as B3 or B1, The preset second intermediate frequency band may include, but is not limited to, frequency bands such as N1 or N3.

The LFEM device 60 is configured with at least a medium and high frequency antenna port MHB ANT, two auxiliary receiving ports LNA AUXIN, at least three medium and high frequency receiving ports LNA OUT MHB, and corresponding receiving circuits and switching circuits, at least for supporting the first medium and high frequency receiving ports. Diversity reception processing of frequency band signals, diversity reception processing of second intermediate frequency band signals, and diversity MIMO reception processing of second intermediate frequency band signals. It should be noted that the specific implementation of the LFEM device 60 is not intended to limit the protection scope of the present application.

The second radio frequency transceiver system shown in FIG. 12 further includes a radio frequency front-end device for supporting the transceiver processing of multiple low-frequency radio frequency signals. As shown in FIG. 12 , the second radio frequency front-end device may be a RF LB PA Mid device. It should be noted that the specific implementation of the radio frequency LB PA Mid device in the embodiments of the present application is not used to limit the protection scope of the present application.

FIG. 12 is a schematic structural diagram of the second embodiment of the second radio frequency transceiver system in the embodiment of the application. Based on the radio frequency transceiver system shown in FIG. 12 and in combination with FIGS. 10 and 11 , the preset first intermediate frequency band is the B3 frequency band, The working principle of the B3+N1 EN-DC is analyzed by taking the default second intermediate frequency band as the N1 frequency band as an example.

B3 TX link: the transmit signal (B3 TX1) of the first intermediate frequency signal is output from the TX1 MB port of the radio frequency transceiver 40, via the radio frequency line, to the first intermediate frequency transmit port MB RFIN1 port of the radio frequency MHB L-PA Mid device 50 (represented as 4G MB RFIN1 in FIG. 12 ); after the signal is amplified by the first intermediate frequency power amplifier 111 (represented as MB 4GPA1 in FIG. 12 ), the signal is sent to the B3 duplexer Duplexer1 after being filtered by the B3 TX Filter, and then sent to the intermediate frequency auxiliary transceiver port MB INOUT output; via the Path05 path, to the second combiner 82; after the second combiner 82 is combined, via the Path03 path, B3 TX1 is transmitted from the second antenna ANT2.

B3 PRX link: The received signal (B3 RX1) of the first mid-band signal enters from the second antenna ANT2, passes through Path03, and reaches the second combiner 82; after the second combiner 82 is combined, passes through Path05 to the second combiner 82. The IF auxiliary transceiver port MB INOUT of the RF MHB L-PA Mid device 50, B3 RX1 is filtered by the B3 duplexer Duplexer1, from the IF auxiliary receiving port MB RX of the RF MHB L-PAMid device 50 to the MHB PA Mid device 50 via Path11 The auxiliary receiving port LNAIN6 (represented as LMHB LNA IN2 in FIG. 12 ); after being amplified by a low-noise amplifier 143 LNA6 in FIG. 12 , the fourth switch unit 144 is a 6P6T switch in FIG. 12 ; 6P6T switches to the contact 6. Output from the receiving port LNA OUT6; B3 RX1 enters the radio frequency transceiver 40 through the SDR PRX3 port.

B3 DRX link: The diversity received signal (B3 DRX) of the first mid-band signal enters from the fourth antenna ANT4, goes through Path08, and reaches the fourth combiner 84; after the fourth combiner 84 is combined, passes through Path10, to the third filter 73; after B3 DRX is filtered by the third filter 73, to an auxiliary receiving port LNA AUX IN of the LFEM device 60 (represented as LNA AUXHB4 in FIG. 12); the SP3T#3 switch inside the LFEM device 60 switches Single port, to the low-noise amplifier LNA3 path inside the LFEM device 60; after being amplified by the low-noise amplifier LNA3, to the 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to contact 1, and the medium and high frequency receiving port LNA OUT MHB1 port output ; B3 DRX enters the RF transceiver 40 through the SDR DRX0 port.

N1 TX link: the transmit signal (N1 TX) of the second intermediate frequency signal is output from the TX0 MB port of the radio frequency transceiver 40, via the radio frequency line, to the second intermediate frequency transmit port MB RFIN2 port of the radio frequency MHB L-PA Mid device 50 (represented as 4G MB RFIN2 in FIG. 12 ); after the signal is amplified by the second intermediate frequency power amplifier 121 (represented as MB 4G PA2 in FIG. 12 ), the second switch unit 122 is the 3P5T switch in FIG. 12 ; the 3P5T switch is switched to Contact 4, after being filtered by N1 TX Filter, goes to the first switch unit 131 (such as the DP7T switch in Figure 12); the DP7T switch is switched to contact 1, which is output from the first antenna port ANT1; through Path02, to the first switch Combiner 81; After the first combiner 81 is combined, N1 TX is transmitted from the first antenna ANT1 via the Path01 path.

N1 PRX link: The received signal (N1 PRX) of the second mid-band signal enters from ANT1 on the first day, passes through Path01, and reaches the first combiner 81; after the first combiner 81 is combined, it passes through Path02. To the first antenna port ANT1 of the MHB PA Mid device 50; the first switch unit 131 (such as the DP7T switch in FIG. 12) is switched to the contact 4, after being filtered by N1 RX, to a third switch of the first receiving circuit 140 unit 142 (the SP3T#1 switch shown in FIG. 12 ); the SP3T#1 switch switches the single port to a low noise amplifier 143 (LNA1 in the RF MHB L-PA Mid device 50 in FIG. 12 ) path; After the low-noise amplifier LNA1 is amplified, it goes to the fourth switch unit 144 (the 6P6T switch in Figure 12); the 6P6T switch is switched to the contact 1, and outputs to a receiving port LNA OUT (the LNA OUT1 in Figure 12); N1 PRX Enter the radio frequency transceiver 40 through the SDR PRX0 port.

N1 DRX link: The diversity received signal (N1 DRX) of the second mid-band signal enters from the third antenna ANT3, goes through the Path06 path, to the third combiner 83; after the third combiner 83 is combined, it goes through the Path07 path , to the mid-high frequency antenna port MHB ANT of the LFEM device 60; the SP8T switch inside the LFEM device 60 switches to contact 5, and after filtering by N1 RX, to the SPDT switch inside the LFEM device 60; the SPDT switch inside the LFEM device 60 switches the single Port, to the low-noise amplifier LNA4 path inside the LFEM device 60; after being amplified by the low-noise amplifier LNA4, to the low-noise amplifier 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to contact 2, to the medium and high frequency receiving port LNA OUT MHB2 Port output; N1 DRX enters the radio frequency transceiver device 40 through the SDR DRX2 port.

N1 PRX MIMO link: The main set of MIMO received signals (N1 PRX MIMO) of the second mid-band signal enters from the second antenna ANT2, goes through the Path03 path, and reaches the second combiner 82; after the second combiner 82 is combined , through the Path04 path, to the first filter 71; after the N1 PRX MIMO is filtered by the first filter 71, to an auxiliary receiving port LNA IN5 of the MHB PA Mid device 50 (represented as LMHB LNA IN1 in FIG. 6); A low-noise amplifier 143 (LNA5 as shown in FIG. 12 ) amplifies, goes to the fourth switch unit 144 (6P6T switch as shown in FIG. 12 ); the 6P6T switch switches to contact 5, from a receiving port LNAOUT (as shown in 12 LNA OUT5) output; N1PRX MIMO enters the radio frequency transceiver 40 through the SDR PRX1 port.

N1 DRX MIMO link: The diversity MIMO received signal (N1 DRX MIMO) of the second mid-band signal enters from the fourth antenna ANT4, passes through the Path08 path, and reaches the fourth combiner 84; after the fourth combiner 84 is combined, After the path of Path09, to the second filter 72; after the N1 DRX MIMO is filtered by the second filter 72, it is sent to an auxiliary receiving port LNA AUXIN of the LFEM device 60 (represented as LNA AUX LMB in FIG. 6); The SP3T#5 switch switches the single port to the low-noise amplifier LNA6 channel inside the LFEM device 60; after being amplified by the low-noise amplifier LNA6, it goes to the 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to the contact 4, the medium and high frequency receiving port LNA OUT MHB4 port output; N1 DRX MIMO enters the RF transceiver 40 through the SDRDRX6 port.

Based on the analysis of the above-mentioned B3+N1 EN-DC working principle, the frequency band configuration of each antenna port is shown in Table 1.

The second radio frequency transceiver system in the example of this application supports the non-independent networking mode. Taking the B3+N1 EN-DC combination as an example, B3 has two channels of PRX and DRX receiving, and N1 has four channels of PRX, DRX, and PRX MIMO and DRX MIMO. Moreover, in the embodiment of the present application, by integrating the external multi-mode multi-frequency power amplifier device and the preset frequency band duplexer into the second radio frequency front-end device, the PCB occupied area is reduced; on the other hand, due to the improved radio frequency The integration of the device reduces the cost; in addition, through integration, the wiring of power supply and transmission control is reduced, and the complexity of the board layout is reduced, thereby improving the performance of the radio frequency transceiver system. The second radio frequency transceiver system in the example of this application also implements transmit and receive channels for multiple frequency bands, including B1/N1, B3/N3, B66, B25, B34, B39, B7, B40, B41 and 2G HB GSM, and 3 1 auxiliary transceiver port TRX and 6 auxiliary receiving ports LNA IN for external frequency band expansion, which expand the communication frequency band of the radio frequency transceiver system and improve the communication performance of the radio frequency transceiver system.

An embodiment of the present application further provides a communication device, the communication device is provided with the second radio frequency transceiver system in the above embodiment, and by setting the second radio frequency transceiver system in the communication device, the external multi-mode multi-frequency power amplifier and the The preset frequency band duplexer is integrated in the RF front-end device, which supports the non-independent networking mode, improves the integration, and reduces the PCB occupied area; moreover, due to the improvement of the integration of the RF device, the cost is reduced; moreover, Through integration, wiring such as power supply and transmission control is reduced, the complexity of single-board layout is reduced, and the performance of communication equipment is improved.

In order to further reduce the complexity of the external layout and wiring of the RF front-end device, the embodiment of the present application further provides a third RF front-end device, which integrates an external multi-mode multi-frequency power amplifier device and a preset first frequency band duplexer In the RF front-end device, in this way, the RF front-end device does not need external multi-mode multi-frequency power amplifier devices and preset first-band duplexers to support non-independent networking mode, and after integration, power supply and transmission control are reduced. Equal wiring reduces the complexity of the board layout, thereby improving the performance of the RF transceiver system and communication equipment. Compared with the second RF front-end device, an input port of the switching circuit is directly connected to the LNA of the receiving circuit in the RF front-end device through the internal wiring of the device, and no additional auxiliary receiving port is required, which further reduces the external layout and wiring of the RF front-end device. complexity.

FIG. 13 is a schematic structural diagram of the first embodiment of the third radio frequency front-end device in the embodiment of the application, which is used for the main set of antenna radio frequency links. As shown in FIG. 13 , the third radio frequency front-end device is provided with at least a first intermediate frequency transmission port MB RFIN1, at least one receiving port LNA OUT, and intermediate frequency auxiliary transceiver port MB INOUT; the radio frequency front-end device at least includes:

The first transmitting circuit 110 is connected to the first intermediate frequency transmitting port MB RFIN1 and the switching circuit 150, and is used for amplifying the first intermediate frequency signal from the first intermediate frequency transmitting port MB RFIN1 and passing the intermediate frequency auxiliary transceiver port through the switching circuit 150. MB INOUT output;

The switching circuit 150 is connected to the first transmitting circuit 110, the intermediate frequency auxiliary transmitting and receiving port MB INOUT, and the first receiving circuit 140, and is used for separating the transmitting and receiving paths according to the direction of the transmitting and receiving signals of the first intermediate frequency signal to realize single-antenna bidirectional communication;

The first receiving circuit 140 is connected to the receiving port LNA OUT and the switching circuit 150, and is used to amplify the first intermediate frequency band signal received through the intermediate frequency auxiliary transceiver port MB INOUT of the switching circuit 150 and output it to a receiving port LNA OUT ;

Wherein, the first mid-band signal is one of the preset mid-band signals in the non-standalone networking mode.

In an exemplary example, the third radio frequency front-end device is further provided with a second intermediate frequency transmitting port MB RFIN2, a first antenna port ANT1, and at least one auxiliary receiving port LAN IN; the third radio frequency front-end device shown in FIG. 13 further includes:

The first switch circuit 130, a plurality of second ports of the first switch circuit 130 are respectively connected to the second transmitting circuit 120 and the first receiving circuit 140, a first port of the first switch circuit 130 is connected to the first antenna port ANT1, for selectively conducting the radio frequency paths between the second transmitting circuit 120 and the first receiving circuit 140 and the first antenna port ANT1;

The second transmitting circuit 120 is connected to the second intermediate frequency transmitting port MB RFIN2, and is used for amplifying at least the second intermediate frequency signal among the plurality of intermediate frequency signals from the second intermediate frequency transmitting port MB RFIN2;

The first receiving circuit 140 is also connected to the second transmitting circuit 120, and is also used for amplifying at least the second intermediate frequency signal in the plurality of intermediate frequency signals from the radio frequency channel and outputting it to another receiving port LNA OUT, Amplify the main MIMO signal of the second mid-band signal from an auxiliary receiving port LNA IN and output it to a receiving port LNA OUT;

Wherein, the second mid-band signal is another preset mid-band signal in the non-standalone networking mode.

In an exemplary example, the switching circuit 150 may be a first mid-band duplexer, and the first mid-band duplexer is a three-port radio frequency device, configured to separate the transceiving signal according to the transceiving signal direction of the first mid-band signal. The path is to divide the transmit and receive signals of the antenna into two different signal paths according to their directions, so as to realize single-antenna bidirectional communication.

In an exemplary example, the common port of the preset first intermediate frequency duplexer is connected to the intermediate frequency auxiliary transceiver port MBINOUT, for transmitting or receiving the first intermediate frequency band signal through an antenna connected to the intermediate frequency auxiliary transceiver port MBINOUT; One of the output ports of the preset first intermediate frequency duplexer is connected to the output terminal of the first transmitting circuit 110 for outputting the first intermediate frequency signal; the other output port of the preset first intermediate frequency duplexer is connected to the first intermediate frequency duplexer. An input port of a receiving circuit 140 is connected to output the first IF signal received through the common port of the preset first IF duplexer. By presetting the first intermediate frequency band duplexer, filtering and isolation of the preset first intermediate frequency band transmission signal and the preset first intermediate frequency band receiving signal are realized.

The third radio frequency front-end device provided by the embodiment shown in FIG. 13 of the present application is used for the main antenna radio frequency link, supports reception and transmission of mid-band signals of multiple different frequency bands, and supports a non-independent networking mode. The plurality of mid-band signals may include mid-band signals of different frequency bands among 4G signals, 5G NR signals, or 6G signals. Exemplarily, the frequency bands of the multiple mid-band signals include at least B1, B25, B34, B66, B39, and N3 frequency bands, as well as a preset first intermediate frequency band and a preset second intermediate frequency band. In an embodiment, the preset first intermediate frequency band may include but is not limited to one of the following: B3, B1 and other frequency bands, and correspondingly, the preset second intermediate frequency band may include but not limited to one of the following: N1, N3, etc. frequency band. In an embodiment, the preset first intermediate frequency band may include, but is not limited to, one of the following: N1, N3 and other frequency bands, and correspondingly, the preset second intermediate frequency band may include but not limited to one of the following: B3, B1, etc. frequency band. In one embodiment, the preset first intermediate frequency band may be the B3 frequency band, and correspondingly, the preset second intermediate frequency band may be the N41 frequency band.

In order to avoid redundant description, only the different parts of the third radio frequency front-end device and the first radio frequency front-end device will be described below, and the same parts will not be repeated.

The third radio frequency front-end device shown in FIG. 13 can be understood as a package structure. As shown in FIG. 13 , the radio frequency front-end device is at least provided with a first intermediate frequency transmitting port MB RFIN1 and a second intermediate frequency transmitting port MBRFIN2, which are used to connect the radio frequency transceiver. At least two receiving ports LNA OUT, a first antenna port ANT1 for connecting an antenna, and an intermediate frequency auxiliary transceiving port MB INOUT. Among them, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, the second intermediate frequency transmitting port MBRFIN2, the first antenna port ANT1, and the intermediate frequency auxiliary transceiver port MB INOUT can be understood as the radio frequency pin terminals of the radio frequency front-end device, which are used to communicate with each other. connection to external devices. In one embodiment, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1 and the second intermediate frequency transmitting port MB RFIN2 can be used to connect with a radio frequency transceiver; the first antenna port ANT1 can be used to connect to an antenna, and can The multiple mid-band signals including the second mid-band signal processed by the RF front-end device are output to the antenna, and each mid-band signal including the second mid-band signal received by the antenna can also be transmitted to the RF front-end device; IF auxiliary transceiver The port MB INOUT can be used to connect with another antenna to output the first mid-band signal processed by the RF front-end device to the antenna, and can also input the first mid-band signal received by the antenna to the RF front-end device to achieve The transmission and reception of the first intermediate frequency band signal.

In an exemplary example, as shown in FIG. 13 , the third radio frequency front-end device may include: a first transmitting circuit 110 , a switching circuit 150 , a second transmitting circuit 120 , a first receiving circuit 140 and a first switching circuit 130 .

In an exemplary example, as shown in FIG. 13 , the input end of the first transmitting circuit 110 is connected to the first intermediate frequency transmitting port MB RFIN1, and amplifies the first intermediate frequency band signal received by the first intermediate frequency transmitting port MB RFIN1 The output end of the first transmitting circuit 110 is connected with an output port of the switching circuit 150, the public port of the switching circuit 150 is connected with the intermediate frequency auxiliary transceiver port MB INOUT, and the amplified first intermediate frequency band signal is assisted by the intermediate frequency through the switching circuit 150 Transceiver port MB INOUT output. The first transmission circuit 110 may be provided with a transmission path to support the transmission of the first intermediate frequency band signal. Exemplarily, the frequency band corresponding to the first intermediate frequency band signal may include, for example, the B3 or B1 frequency band. In an embodiment, the first transmission channel may include a transmission channel formed by a first intermediate frequency transmission port MB RFIN1, a first transmission circuit 110, a switching circuit 150, an intermediate frequency auxiliary transceiver port MB INOUT, and an antenna.

In an exemplary example, as shown in FIG. 13 , for the implementation of the second transmitting circuit 120, reference may be made to the relevant description in FIG. 1 , which will not be repeated here.

In an exemplary example, as shown in FIG. 13 , the first receiving circuit 140 is respectively connected with the first switching circuit 130 , the second transmitting circuit 120 , the switching circuit 150 and the receiving port LNA OUT. The output end of the first receiving circuit 140 is connected to the receiving port LNA OUT. The input end of the first receiving circuit 140 includes: a plurality of input ports connected to the plurality of second ports of the first switch circuit 130 in a one-to-one correspondence, an input port connected to another output port of the switch circuit 150, and a first port connected to the second port of the first switch circuit 130. Two output ports of the transmitting circuit 120 are connected to a plurality of input ports in a one-to-one correspondence. The first receiving circuit 140 amplifies the radio frequency signals including the second intermediate frequency band signal from the plurality of input ports and the first intermediate frequency band signal from the switching circuit 150 and outputs them to the receiving port LNA OUT.

The first receiving circuit 140 in this embodiment supports receiving control of any of the aforementioned mid-band signals. In one embodiment, the first receiving circuit 140 may be provided with multiple receiving paths to support the receiving of multiple intermediate frequency band signals. In an embodiment, the receiving path may include: a first antenna port ANT1, a first switching circuit 130, a first receiving circuit 140, a receiving path formed by any receiving port LNA OUT, and a first antenna port ANT1, a first receiving circuit 140, and a receiving path formed by any receiving port LNA OUT A receiving path formed by a switch circuit 130, a second transmitting circuit 120, a first receiving circuit 140, and any receiving port LNA OUT, as well as an intermediate frequency auxiliary transceiver port MB INOUT, a switching circuit 150, a first receiving circuit 120, and any receiving The receiving channel formed by the ports LNA OUT together. That is, a receiving channel can be set for the mid-band signals of each frequency band to support the receiving and processing of multiple mid-band signals.

The third RF front-end device shown in FIG. 13 of this application is used for the main antenna RF link, and no need for external multi-mode multi-frequency power amplifier devices and duplexers to support the non-independent networking mode, reducing PCB occupation The area improves the integration of RF devices and reduces costs. After integration, power supply, transmission control and other wiring are reduced, and the complexity of single-board wiring layout is reduced, thereby improving the performance of RF transceiver systems and communication equipment.

FIG. 14 is a schematic structural diagram of a second embodiment of a third radio frequency front-end device in an embodiment of the present application. For specific implementation, reference may be made to the description in FIG. 2 , which will not be repeated here.

FIG. 15 is a schematic structural diagram of the third embodiment of the third radio frequency front-end device in the embodiment of the application. For the specific implementation, refer to the description in FIG. 3 , which will not be repeated here. The difference from the embodiment shown in FIG. 3 is that the coupling circuit 183, It is arranged in the radio frequency path between the switching circuit 150 and the intermediate frequency auxiliary transceiver port MB INOUT.

The third radio frequency front-end device provided in the embodiment of the present application may also be a radio frequency L-PA Mid device. The RF L-PA Mid device can support the reception and transmission of intermediate frequency signals and high frequency signals of multiple different frequency bands, and realize the control of reception switching, transmission switching control, and switching control between transmission and reception among multiple intermediate frequency signals. , and realize the control of reception switching, transmission switching control, and switching control between transmission and reception among multiple high-frequency signals, and support non-independent networking mode. The plurality of medium and high frequency signals may include medium and high frequency signals in different frequency bands among 4G signals and 5GNR signals. Specifically, the frequency bands of the multiple intermediate frequency signals may include B1, B3, B25, B34, B66, B39, N1 and N3 frequency bands. The frequency bands of the plurality of high frequency signals may include B30, B7, B40, B41, N7 and N41. Therefore, the radio frequency L-PAMid device in the embodiments of the present application may also be referred to as MHB L-PA Mid.

FIG. 16 is a schematic structural diagram of an embodiment of a third radio frequency MHB L-PA Mid device in an embodiment of the application. As shown in FIG. 16 , the third radio frequency MHB L-PA Mid device is provided with a first intermediate frequency for connecting with a radio frequency transceiver A transmit port MBRFIN1, a second intermediate frequency transmit port MB RFIN2, at least two receive ports LNA OUT, a first antenna port ANT1 for connecting to an antenna, and an intermediate frequency auxiliary transceiver port MB INOUT. The receiving port LNA OUT, the first intermediate frequency transmitting port MBRFIN1, the second intermediate frequency transmitting port MB RFIN2, the intermediate frequency auxiliary transceiver port MB INOUT, and the first antenna port ANT1 can be understood as the radio frequency pin terminals of the radio frequency LB L-PA Mid device, Used to connect with various external devices. In an embodiment, the receiving port LNA OUT, the first intermediate frequency transmitting port MB RFIN1, and the second intermediate frequency transmitting port MB RFIN2 can be used to connect to the radio frequency transceiver; the first antenna port ANT1 can be used to connect to the antenna, and The multiple mid-band signals including the second mid-band signal processed by the RF MHB L-PA Mid device are output to the antenna, and each mid-band signal including the second mid-band signal received by the antenna can also be transmitted to the RF MHB L -PA Mid device; the intermediate frequency auxiliary transceiver port MBINOUT can be used to connect with another antenna, used to output the first intermediate frequency signal processed by the RF LB L-PA Mid device to the antenna, and can also input the first intermediate frequency signal received by the antenna. An intermediate frequency band signal is sent to the radio frequency LB L-PA Mid device to realize the transmission and reception of the first intermediate frequency band signal.

In an exemplary example, as shown in FIG. 16 , the first transmitting circuit 110 may at least include: a first intermediate frequency power amplifier 111, the input end of the first intermediate frequency power amplifier 111 is connected to the first intermediate frequency transmitting port MB RFIN1, and the first intermediate frequency power amplifier 111 is connected to the first intermediate frequency transmitting port MB RFIN1. The output end of an intermediate frequency power amplifier 111 is connected to an input port of the first intermediate frequency band duplexer 151, and is used for power amplifying the first intermediate frequency band signal received through the first intermediate frequency transmitting port MB RFIN1. In an embodiment, the first intermediate frequency band signal includes a B3 or B1 frequency band signal. In an exemplary example, as shown in FIG. 16 , the switching circuit 150 may at least include: a first intermediate frequency duplexer 151 , and the common port of the first intermediate frequency duplexer 151 is connected to the intermediate frequency auxiliary transceiver port MBINOUT, The amplified first mid-band signal is output via the first mid-band duplexer 151 through the intermediate frequency auxiliary transceiver port MB INOUT. In an embodiment, the first transmission path may include: a first intermediate frequency transmission port MB RFIN1, a first intermediate frequency power amplifier 111, a first intermediate frequency duplexer 151, an intermediate frequency auxiliary transceiver port MB INOUT, and a transmission composed of an antenna. path.

In an exemplary example, as shown in FIG. 16 , the third radio frequency MHB L-PA Mid device is further provided with a second antenna port ANT2 , which is connected to a first port of the first switch circuit 130 . For the implementation of the second transmitting circuit 120 and the first receiving circuit 140 , reference may be made to the relevant description in FIG. 4 , which will not be repeated here. Different from the embodiment shown in FIG. 4 , the input end of a low noise amplifier 143 (the low noise amplifier LNA6 in the embodiment shown in FIG. 16 ) is connected to another input port of the first intermediate frequency duplexer 151 .

In one embodiment, the receiving path may include: a first antenna port ANT1 or a second antenna port ANT1, a first switch circuit 130, a third switch unit 142 or a fifth switch unit 141, a low noise amplifier 143, a fourth switch The unit 144, a receiving channel formed by any receiving port LNA OUT, and the intermediate frequency auxiliary receiving port MB RX, the switching circuit 151 (such as the first intermediate frequency duplexer 151 of the preset first intermediate frequency), a low Another receiving path formed by the noise amplifier 143, the fourth switch unit 144, and any receiving port LNA OUT, and other external circuits (not shown in the figure), the third switch unit 142, the low noise amplifier 143, the first Another receiving path is formed by the four switch units 144 and any receiving port LNA OUT.

In an exemplary example, as shown in FIG. 16 , for the implementation of the first switch circuit 130 , the third transmission circuit 160 and the second switch circuit 170 , reference may be made to the relevant description in FIG. 4 , which will not be repeated here.

It should be noted that, in the embodiments of the present application, the switch units in the figures are only some examples, and are not used to limit the number and types of switches included in the switch units. The switch units in the embodiments of the present application can be based on The number of circuits it is connected to is set.

In an exemplary example, the third radio frequency MHB L-PA Mid device is further provided with a coupling output port CPLOUT2, and the third radio frequency MHB L-PA Mid device further includes a coupling circuit 183, which is provided between the first intermediate frequency power amplifier 111 and the intermediate frequency The radio frequency path between the auxiliary transceiver ports MB INOUT is used for coupling the mid-frequency signal in the radio frequency path, so as to output the coupled signal through the coupling output port CPLOUT2. In an exemplary example, the third radio frequency MHB L-PA Mid device is further provided with a coupling output port CPLOUT1 , and the radio frequency MHB L-PA Mid device further includes a first coupling unit 181 , a second coupling unit 182 and a coupling switch 184 . For specific implementation, reference may be made to the related description of the first radio frequency MHB L-PA Mid device, which will not be repeated here. .

In an exemplary example, the third radio frequency MHB L-PA Mid device may further include: a first controller 191 and a second controller 192 . The first controller 191 is respectively connected to each switch unit and each power amplifier in the radio frequency MHB L-PA Mid device, and is used to control the on-off of each switch unit and control the working state of each power amplifier. The second controller 192 may be connected to each of the low-noise amplifiers for adjusting the gain coefficient of each of the low-noise amplifiers. For specific implementation, reference may be made to the related description of the first radio frequency MHB L-PA Mid device, which will not be repeated here.

Based on the miniaturization development trend of the mainboard of the terminal equipment, the embodiment of the present application provides a third radio frequency MHB L-PAMid device, the composition of which is shown in FIG. 16 . The whole chip integrates multi-band transmit and receive channels, including B1/N1, B3/N3, B66, B25, B34, B39, B7, B40, B41 and 2G HB GSM, as well as 3 auxiliary transceiver ports TRX and 6 Auxiliary receiving port LNA IN extended in external frequency band.

Based on the third radio frequency MHB L-PA Mid device as shown in Figure 16, a non-standalone networking mode can be supported. Exemplarily, to implement 4G and 5G dual connections, the first intermediate frequency band may be, for example, the B3 frequency band, and the second intermediate frequency band may be an EN-DC combination of B3+N1 such as the N1 frequency band.

The transmission path of the B3 frequency band is as follows:

The first intermediate frequency transmission port MB RFIN1→the first intermediate frequency power amplifier 111→the first intermediate frequency duplexer 151→the intermediate frequency auxiliary transceiver port MB INOUT→antenna.

The receive path of the B3 band is as follows:

Antenna → intermediate frequency auxiliary transceiver port MB INOUT → first intermediate frequency band duplexer 151 → low noise amplifier LNA6 → contact 6 of the fourth switch unit 144 → receiving port LNA OUT6 → radio frequency transceiver.

The transmission path of the N1 frequency band is as follows:

The second intermediate frequency transmitting port MB RFIN2→the second intermediate frequency power amplifier 121→the contact 1 of the second switching unit 122→the contact 4 of the second switching unit 122→the first filtering unit 1131→the contact 4 of the first switching unit 131 →Contact 1 of the first switch unit 131 →First antenna port ANT1.

The receive path of the N1 band is as follows:

The first antenna port ANT1→the contact 1 of the first switch unit 131→the contact 4 of the first switch unit 131→the third filter unit 1133→a third switch unit 142 (eg SP3T#1)→the low noise amplifier LNA1→ Contact 1 of the fourth switch unit 144→receiving port LNA OUT1→radio frequency transceiver.

The third radio frequency MHB L-PA Mid device provided by the embodiment of the present application can support the non-independent networking mode without the need for an external multi-mode multi-frequency power amplifier device and a preset frequency band duplexer, which reduces the occupied area of the PCB and improves the The integration level of the radio frequency device is improved, the cost is reduced, and after integration, the power supply, transmission control and other wirings are reduced, and the complexity of the single-board wiring layout is reduced, thereby improving the performance of the radio frequency transceiver system and communication equipment.

In order to meet the requirements of the 5G MB MIMO function, the embodiment of the present application further provides a radio frequency transceiver system, and the radio frequency transceiver system is implemented by the third radio frequency MHB L-PA Mid device and the LFEM provided by the embodiment of the present application. The LFEM device in the embodiment of the present application includes at least: a mid-high frequency antenna port MHB ANT, two auxiliary receiving ports LNA AUX IN, at least three mid-high frequency receiving ports LNA OUT MHB, and corresponding receiving circuits and switch circuits for at least Diversity reception processing of multiple IF signals is supported. It should be noted that the specific implementation of the LFEM device 60 is not intended to limit the protection scope of the present application.

FIG. 17 is a schematic structural diagram of the first embodiment of the third radio frequency transceiver system in the embodiment of the application. As shown in FIG. 17 , the third radio frequency transceiver system at least includes: a first antenna ANT1, a second antenna ANT2, a third antenna ANT1, The fourth antenna ANT4, the radio frequency transceiver 40, the third radio frequency front-end device (such as the third radio frequency MHBL-PA Mid device 50), the LFEM device 60, and the second combiner 82 in any of the foregoing embodiments in FIG. 13 to FIG. 16 , a fourth combiner 84 , a first filter 71 , a second filter 72 and a third filter 73 . in,

The radio frequency transceiver 40 is connected to the first antenna ANT1 via the radio frequency MHB L-PA Mid device 50 to form a transmission channel of the intermediate frequency signal including at least the second intermediate frequency signal and the main set of the intermediate frequency signal at least including the second intermediate frequency signal. receive channel;

The radio frequency transceiver 40 is connected to the second antenna ANT2 through the radio frequency MHB L-PA Mid device 50, the first filter 71 and the second combiner 82, and constitutes the transmission channel of the first intermediate frequency signal and the main transmission channel of the first intermediate frequency signal. set receive channels, and the main set of MIMO receive channels for the second mid-band signal;

The radio frequency transceiver 40 is connected to the third antenna ANT3 via the LFEM device 60 to form a diversity receiving channel of the mid-band signal including at least the second mid-band signal;

The radio frequency transceiver 40 is connected to the fourth antenna ANT4 via the LFEM device 60, the second filter 72, the third filter 73 and the fourth combiner 84 to form a diversity receiving channel of the first intermediate frequency signal and the second intermediate frequency Signal diversity MIMO receive channel;

Wherein, the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.

In an exemplary example, the first mid-band signal is a 4G mid-band signal, and the second mid-band signal is a 5G NR mid-band signal, forming an EN-DC combination. In an embodiment, the first intermediate frequency band is the B3 frequency band, and the second intermediate frequency band is the N1 frequency band. In an embodiment, the first intermediate frequency band is the B1 frequency band, and the second intermediate frequency band is the N3 frequency band.

In an embodiment, the first antenna ANT1 may be used for the transmission and main set reception of the second intermediate frequency band signal, and the first antenna ANT1 is connected to the first antenna port ANT1 of the radio frequency MHB L-PA Mid device 50 . The second antenna ANT2 can be used for the transmission and main set reception of the first intermediate frequency band signal, and the main set MIMO reception of the second intermediate frequency band signal. The second antenna ANT2 is connected to the second end of the second combiner 82, and the second A first port of the combiner 82 is connected to an auxiliary receiving port LNA IN5 of the radio frequency MHBL-PA Mid device 50 through the first filter 71, and is used for the main set MIMO reception of the second mid-band signal. The second combiner The other first port of 82 is connected to the intermediate frequency auxiliary transceiver port MB INOUT of the radio frequency MHB L-PA Mid device 50, and is used for transmitting and receiving the main set of signals in the first intermediate frequency band. The third antenna ANT3 may be used to implement diversity reception of the second mid-frequency signal, and the third antenna ANT3 is connected to the mid-high frequency antenna port MHB ANT of the LFEM device 60 . The fourth antenna ANT4 can be used to implement diversity reception of the first intermediate frequency band signal and diversity MIMO reception of the second intermediate frequency band signal. The fourth antenna ANT4 is connected to the second end of the fourth combiner 84, and the fourth combiner 84 A first port of the LFEM device 60 is connected to an auxiliary receiving port LNA AUX IN1 of the LFEM device 60 through the second filter 72 for diversity MIMO reception of the second mid-band signal, and another first port of the fourth combiner 84 passes through The third filter 73 is connected to another auxiliary receiving port LNA AUX IN5 of the LFEM device 60 for diversity reception of the first intermediate frequency band signal. It should be noted that the port in the embodiment is only an example, and is not used to limit the protection scope of the present application.

In the third radio frequency transceiver system provided by the embodiments of the present application, on the one hand, since the multi-mode multi-frequency power amplifier and the first mid-band duplexer are integrated in the radio frequency front-end device, external multi-mode and multi-frequency power amplifier devices and pre-installation devices are no longer required. The non-independent networking mode can be supported by setting the frequency duplexer, which reduces the PCB footprint; on the other hand, the cost is reduced due to the improved integration of the radio frequency devices; furthermore, the power supply and transmission control are reduced through integration. Equal wiring reduces the complexity of single-board wiring layout, thereby improving the performance of the RF transceiver system.

In an illustrative example, as shown in FIGS. 17-18, the third radio frequency transceiver system may include an antenna group, a radio frequency MHB L-PA Mid device 50, a radio frequency transceiver 40, an LFEM device 60, a plurality of filters, a plurality of switch modules and multiple combiners.

The antenna group includes a first antenna ANT1, a second antenna ANT2, a third antenna ANT3 and a fourth antenna ANT4. The first antenna ANT1, the second antenna ANT2, the third antenna ANT3, and the fourth antenna ANT4 are all antennas capable of supporting the 4G frequency band and the 5G NR frequency band. In one embodiment, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may be directional antennas or non-directional antennas. Exemplarily, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may be formed using any suitable type of antenna. For example, the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT4 may include antennas with resonant elements formed by the following antenna structures: array antenna structure, loop antenna structure, patch antenna structure, slot antenna At least one of a structure, a helical antenna structure, a strip antenna, a monopole antenna, a dipole antenna, and the like. Different types of antennas can be used for different frequency band combinations of RF signals.

The radio frequency MHB L-PA Mid device 50 is used for supporting the transceiving and processing of radio frequency signals of multiple intermediate frequency bands and supporting the non-independent networking mode, at least supporting the transceiving processing of the first intermediate frequency band signal and the transceiving processing of the second intermediate frequency band signal . The main set of MIMO receiving and processing of the second intermediate frequency band signal. The radio frequency LB L-PA Mid device 50 may be the third radio frequency MHB L-PA Mid device in any of the foregoing embodiments in FIGS. 13 to 16 . Exemplarily, the frequency bands of the multiple mid-band signals may at least include B1, B3, B25, B34, B66, B39, N1, and N3 frequency bands, wherein the preset first mid-frequency band may include, but not limited to, frequency bands such as B3 or B1, The preset second intermediate frequency band may include, but is not limited to, frequency bands such as N1 or N3.

The LFEM device 60 is configured with at least a medium and high frequency antenna port MHB ANT, two auxiliary receiving ports LNA AUXIN, at least three medium and high frequency receiving ports LNA OUT MHB, and corresponding receiving circuits and switching circuits, at least for supporting the first medium and high frequency receiving ports. Diversity reception processing of frequency band signals, diversity reception processing of second intermediate frequency band signals, and diversity MIMO reception processing of second intermediate frequency band signals. It should be noted that the specific implementation of the LFEM device 60 is not intended to limit the protection scope of the present application.

The third radio frequency transceiver system shown in FIG. 18 further includes a radio frequency front-end device for supporting the transceiver processing of multiple low-frequency radio frequency signals. As shown in FIG. 18 , the radio frequency front-end device may be a radio frequency LB PA Mid device. It should be noted that the specific implementation of the radio frequency LB PA Mid device in the embodiments of the present application is not used to limit the protection scope of the present application.

FIG. 18 is a schematic structural diagram of the second embodiment of the third radio frequency transceiver system in the embodiment of the application. Based on the radio frequency transceiver system shown in FIG. 18 and in combination with FIGS. 16 and 17 , the preset first intermediate frequency band is the B3 frequency band, The working principle of the B3+N1 EN-DC is analyzed by taking the default second intermediate frequency band as the N1 frequency band as an example.

B3 TX link: the transmit signal (B3 TX1) of the first intermediate frequency signal is output from the TX1 MB port of the radio frequency transceiver 40, via the radio frequency line, to the first intermediate frequency transmit port MB RFIN1 port of the radio frequency MHB L-PA Mid device 50 (represented as 4G MB RFIN1 in FIG. 18 ); after amplifying the signal by the first intermediate frequency power amplifier 111 (represented as MB 4GPA1 in FIG. 18 ), the signal is sent to the B3 duplexer Duplexer1 after being filtered by the B3 TX Filter, and then sent to the intermediate frequency auxiliary transceiver port MB INOUT output; via the Path05 path, to the second combiner 82; after the second combiner 82 is combined, via the Path03 path, B3 TX1 is transmitted from the second antenna ANT2.

B3 PRX link: The received signal (B3 RX1) of the first mid-band signal enters from the second antenna ANT2, passes through Path03, and reaches the second combiner 82; after the second combiner 82 is combined, passes through Path05 to the second combiner 82. The intermediate frequency auxiliary transceiver port MB INOUT of the radio frequency MHB L-PA Mid device 50, B3 duplexer Duplexer1 filters B3 RX1, and after being amplified by a low noise amplifier 143 as shown in LNA6 in Figure 18, the fourth switch unit 144 is shown in Figure 18. 6P6T switch in 18; 6P6T switches to contact 6, output from the receiving port LNA OUT6; B3 RX1 enters the RF transceiver 40 through the SDR PRX3 port.

B3 DRX link: The diversity received signal (B3 DRX) of the first mid-band signal enters from the fourth antenna ANT4, goes through Path08, and reaches the fourth combiner 84; after the fourth combiner 84 is combined, passes through Path10, to the third filter 73; after B3 DRX is filtered by the third filter 73, to an auxiliary receiving port LNA AUX IN of the LFEM device 60 (represented as LNA AUXHB4 in FIG. 18); the SP3T#3 switch inside the LFEM device 60 switches Single port, to the low-noise amplifier LNA3 path inside the LFEM device 60; after being amplified by the low-noise amplifier LNA3, to the 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to contact 1, and the medium and high frequency receiving port LNA OUT MHB1 port output ; B3 DRX enters the RF transceiver 40 through the SDR DRX0 port.

N1 TX link: the transmit signal (N1 TX) of the second intermediate frequency signal is output from the TX0 MB port of the radio frequency transceiver 40, via the radio frequency line, to the second intermediate frequency transmit port MB RFIN2 port of the radio frequency MHB L-PA Mid device 50 (represented as 4G MB RFIN2 in FIG. 18 ); after the signal is amplified by the second intermediate frequency power amplifier 121 (represented as MB 4G PA2 in FIG. 18 ), the second switch unit 122 is the 3P5T switch in FIG. 18 ; the 3P5T switch is switched to Contact 4, after being filtered by N1 TX Filter, goes to the first switch unit 131 (as shown in the DP7T switch in Figure 18); the DP7T switch is switched to contact 1, which is output from the first antenna port ANT1; through Path02, to the first switch Combiner 81; After the first combiner 81 is combined, N1 TX is transmitted from the first antenna ANT1 via the Path01 path.

N1 PRX link: The received signal (N1 PRX) of the second mid-band signal enters from ANT1 on the first day, passes through Path01, and reaches the first combiner 81; after the first combiner 81 is combined, it passes through Path02. To the first antenna port ANT1 of the MHB PA Mid device 50; the first switch unit 131 (such as the DP7T switch in FIG. 18) is switched to the contact 4, after being filtered by N1 RX, to a third switch of the first receiving circuit 140 unit 142 (the SP3T#1 switch shown in FIG. 18); the SP3T#1 switch switches a single port to a low noise amplifier 143 (LNA1 in the RF MHB L-PA Mid device 50 in FIG. 18) path; After the low-noise amplifier LNA1 is amplified, it goes to the fourth switch unit 144 (the 6P6T switch in Figure 18); the 6P6T switch is switched to the contact 1, and outputs to a receiving port LNA OUT (the LNA OUT1 in Figure 18); N1 PRX Enter the radio frequency transceiver 40 through the SDR PRX0 port.

N1 DRX link: The diversity received signal (N1 DRX) of the second mid-band signal enters from the third antenna ANT3, goes through the Path06 path, to the third combiner 83; after the third combiner 83 is combined, it goes through the Path07 path , to the mid-high frequency antenna port MHB ANT of the LFEM device 60; the SP8T switch inside the LFEM device 60 switches to contact 5, and after filtering by N1 RX, to the SPDT switch inside the LFEM device 60; the SPDT switch inside the LFEM device 60 switches the single Port, to the low-noise amplifier LNA4 path inside the LFEM device 60; after being amplified by the low-noise amplifier LNA4, to the low-noise amplifier 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to contact 2, to the medium and high frequency receiving port LNA OUT MHB2 Port output; N1 DRX enters the radio frequency transceiver device 40 through the SDR DRX2 port.

N1 PRX MIMO link: The main set of MIMO received signals (N1 PRX MIMO) of the second mid-band signal enters from the second antenna ANT2, goes through the Path03 path, and reaches the second combiner 82; after the second combiner 82 is combined , through the Path04 path, to the first filter 71; after the N1 PRX MIMO is filtered by the first filter 71, to an auxiliary receiving port LNA IN5 of the MHB PA Mid device 50 (represented as LMHB LNA IN1 in FIG. 18 ); A low-noise amplifier 143 (LNA5 as shown in FIG. 6 ) amplifies it to the fourth switch unit 144 (6P6T switch as shown in FIG. 18 ); the 6P6T switch is switched to contact 5, from a receiving port LNAOUT (as shown in 18 LNA OUT5) output; N1PRX MIMO enters the radio frequency transceiver 40 through the SDR PRX1 port.

N1 DRX MIMO link: The diversity MIMO received signal (N1 DRX MIMO) of the second mid-band signal enters from the fourth antenna ANT4, passes through the Path08 path, and reaches the fourth combiner 84; after the fourth combiner 84 is combined, After the path of Path09, to the second filter 72; after the N1 DRX MIMO is filtered by the second filter 72, it is sent to an auxiliary receiving port LNA AUXIN of the LFEM device 60 (represented as LNA AUX LMB in FIG. 6); The SP3T#5 switch switches the single port to the low-noise amplifier LNA6 channel inside the LFEM device 60; after being amplified by the low-noise amplifier LNA6, it goes to the 6P6T switch inside the LFEM device 60; the 6P6T switch is switched to the contact 4, the medium and high frequency receiving port LNA OUT MHB4 port output; N1 DRX MIMO enters the RF transceiver 40 through the SDRDRX6 port.

Combined with the analysis of the working principle of B3+N1EN-DC above, the frequency band configuration of each antenna port is shown in Table 1.

The third radio frequency transceiver system in the example of this application supports the non-independent networking mode. Taking the B3+N1 EN-DC combination as an example, B3 has two channels of PRX and DRX receiving, and N1 has four channels of PRX, DRX, and PRX MIMO and DRX MIMO. Moreover, in the embodiment of the present application, by integrating the external multi-mode multi-frequency power amplifier device and the preset frequency band duplexer into the second radio frequency front-end device, the PCB occupied area is reduced; on the other hand, due to the improved radio frequency The integration of the device reduces the cost; moreover, the intermediate frequency auxiliary receiving port MB RX is directly connected with the LNA of the receiving circuit in the RF front-end device through the internal wiring of the device, no additional auxiliary receiving port is required, and the complexity of single-board wiring layout is reduced. In addition, through integration, the wiring of power supply, transmission control, etc. is reduced, the complexity of single-board layout is reduced, and the performance of the radio frequency transceiver system is improved. The third radio frequency transceiver system in the example of this application also implements transmit and receive channels for multiple frequency bands, including B1/N1, B3/N3, B66, B25, B34, B39, B7, B40, B41 and 2G HB GSM, and 3 1 auxiliary transceiver port TRX and 6 auxiliary receiving ports LNA IN for external frequency band expansion, which expand the communication frequency band of the radio frequency transceiver system and improve the communication performance of the radio frequency transceiver system.

An embodiment of the present application further provides a communication device, the communication device is provided with the third radio frequency transceiver system in the above embodiment, and by setting the third radio frequency transceiver system in the communication device, the external multi-mode multi-frequency power amplifier and the external multi-frequency power amplifier are realized. The preset frequency band duplexer is integrated in the RF front-end device, which supports the non-independent networking mode, improves the integration, and reduces the PCB occupied area; moreover, due to the improvement of the integration of the RF device, the cost is reduced; moreover, Through integration, power supply, transmission control and other wiring are reduced, the complexity of single-board wiring layout is reduced, and the performance of communication equipment is improved.

Although the embodiments disclosed in the present application are as above, the described contents are only the embodiments adopted to facilitate the understanding of the present application, and are not intended to limit the present application. Any person skilled in the art to which this application belongs, without departing from the spirit and scope disclosed in this application, can make any modifications and changes in the form and details of the implementation, but the scope of the patent protection of this application still needs to be The scope defined by the appended claims shall prevail.

Claims (30)

1. A radio frequency front-end device is characterized in that the device is used for a main set antenna radio frequency link and is provided with a first intermediate frequency transmitting port and an intermediate frequency auxiliary transmitting port; the radio frequency front end device comprises:

the first transmitting circuit is connected with the first intermediate frequency transmitting port and the intermediate frequency auxiliary transmitting port and is used for performing power amplification processing on a first intermediate frequency signal from the first intermediate frequency transmitting port and outputting the first intermediate frequency signal through the intermediate frequency auxiliary transmitting port;

the first intermediate frequency band signal is a signal of one preset intermediate frequency band in a non-independent networking mode;

the radio frequency front-end device is also provided with a second intermediate frequency transmitting port, at least two receiving ports, a first antenna port and at least two auxiliary receiving ports; the intermediate frequency auxiliary transmitting port and the auxiliary receiving port are both connected with an external circuit; a second antenna port is also arranged; the radio frequency front end device further comprises:

a plurality of second ports of the first switch circuit are respectively connected with the second transmitting circuit and the first receiving circuit, and a first port of the first switch circuit is connected with the first antenna port and used for selectively conducting radio frequency paths between the second transmitting circuit and the first receiving circuit and the first antenna port; a first port of the first switch circuit is connected with the second antenna port;

the second transmitting circuit is connected with the second intermediate frequency transmitting port and is used for amplifying a second intermediate frequency signal in the plurality of intermediate frequency signals from the second intermediate frequency transmitting port and outputting the second intermediate frequency signal to the first antenna port, and amplifying a plurality of intermediate frequency signals except the second intermediate frequency signal from the second intermediate frequency transmitting port and outputting the plurality of intermediate frequency signals to the first antenna port or the second antenna port;

a first receiving circuit, connected to the receiving port, the auxiliary receiving port and the second transmitting circuit, for: amplifying the received first intermediate frequency band signal from an auxiliary receiving port connected with an external circuit and outputting the amplified first intermediate frequency band signal to a receiving port, amplifying a main set MIMO signal of a second intermediate frequency band signal from the auxiliary receiving port and outputting the amplified main set MIMO signal to the receiving port, and amplifying at least a second intermediate frequency band signal in a plurality of intermediate frequency band signals from a radio frequency channel and outputting the amplified second intermediate frequency band signal to the receiving port;

the second intermediate frequency band signal is a signal of another preset intermediate frequency band in the non-independent networking mode;

the radio frequency front-end device is a radio frequency MHB L-PA Mid device.

2. The radio frequency front end device of claim 1, wherein the first transmit circuit comprises: a first intermediate frequency power amplifier; the input end of the first intermediate frequency power amplifier is connected with the first intermediate frequency transmitting port, and the output end of the first intermediate frequency power amplifier is connected with the intermediate frequency auxiliary transmitting port.

3. The radio frequency front end device of claim 2, further provided with a second coupled output port;

the radio frequency front-end device further comprises a coupling circuit, which is arranged in a radio frequency path between the first intermediate frequency power amplifier and the intermediate frequency auxiliary transmitting port and is used for coupling the first intermediate frequency band signal in the radio frequency path so as to output a coupling signal through the second coupling output port.

4. The radio frequency front end device of claim 1, the second transmit circuit comprising: the second intermediate frequency power amplifier and the second switch unit; wherein,

the input end of the second intermediate frequency power amplifier is connected with the second intermediate frequency transmitting port, and the output end of the second intermediate frequency power amplifier is connected with a first port of the second switch unit, so as to perform power amplification processing on a plurality of intermediate frequency signals including the second intermediate frequency signal received by the second intermediate frequency transmitting port;

a plurality of second ports of the second switch unit are connected to the first switch circuit, and are configured to output the amplified second intermediate frequency signal to the first antenna port, and output a plurality of amplified intermediate frequency signals other than the second intermediate frequency signal to the first antenna port or the second antenna port; a plurality of first ports of the second switch unit are correspondingly connected with the first receiving circuit and used for outputting a plurality of intermediate frequency signals from the first switch circuit to the first receiving circuit.

5. The radio frequency front end device of claim 1, wherein the first receive circuit comprises: at least three low noise amplifiers, at least one third switch unit and a fourth switch unit; wherein,

the input end of a low-noise amplifier is connected with the first port of a third switching unit, a second port of the third switching unit is connected with the first switching circuit, and the output end of the low-noise amplifier is connected with the second port of a fourth switching unit and used for amplifying the second middle-frequency-band signal and outputting the amplified second middle-frequency-band signal to a receiving port through the fourth switching unit;

the input end of a low-noise amplifier is connected with an auxiliary receiving port connected with the external circuit, and the output end of the low-noise amplifier is connected with a second port of the fourth switching unit and used for amplifying the first intermediate frequency band signal and outputting the amplified first intermediate frequency band signal to a receiving port through the fourth switching unit;

the input end of a low-noise amplifier is connected with one auxiliary receiving port, and the output end of the low-noise amplifier is connected with a second port of the fourth switching unit, and is used for amplifying the main set MIMO signal of the second intermediate frequency band signal and outputting the amplified main set MIMO signal to one receiving port through the fourth switching unit.

6. The rf front-end device of claim 1, wherein the external circuit is a preset first intermediate band duplexer, wherein the preset first intermediate band is a band in which the first intermediate band signal is located;

the intermediate frequency auxiliary transmitting port is connected with one output port of a preset first intermediate frequency band duplexer and used for outputting the first intermediate frequency band signal;

the auxiliary receiving port is connected with the other output port of the preset first intermediate frequency band duplexer and used for receiving the first intermediate frequency band signal;

the common port of the first intermediate band duplexer is preset for receiving or transmitting the first intermediate band signal.

7. The radio frequency front end device of claim 6, wherein the preset first mid-band comprises one of: b3, B1 frequency band;

the preset first middle band duplexer comprises one of the following components: a B3 duplexer and a B1 duplexer;

the preset second intermediate frequency band comprises one of the following: n1 and N3 frequency bands.

8. A radio frequency transceiver system, comprising: a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, an external circuit, a second combiner, a fourth combiner, a first filter, a second filter, and a third filter, a LFEM device, and the radio frequency front end device of any one of claims 1-7 as a first radio frequency front end device; wherein,

the radio frequency transceiver is connected with the first antenna through a first radio frequency front-end device to form a transmitting channel of the intermediate frequency band signal at least comprising a second intermediate frequency band signal and a main set receiving channel of the intermediate frequency band signal at least comprising the second intermediate frequency band signal;

the radio frequency transceiver is connected with a second antenna through a first radio frequency front-end device, an external circuit, a first filter and a second combiner to form a transmitting channel of a first intermediate frequency band signal, a main set receiving channel of the first intermediate frequency band signal and a main set MIMO receiving channel of a second intermediate frequency band signal;

the radio frequency transceiver is connected with a third antenna through an LFEM device to form a diversity receiving channel of the intermediate frequency band signal at least comprising a second intermediate frequency band signal;

the radio frequency transceiver is connected with a fourth antenna through the LFEM device, the second filter, the third filter and the fourth combiner to form a diversity receiving channel of a first intermediate frequency band signal and a diversity MIMO receiving channel of a second intermediate frequency band signal;

the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in a non-independent networking mode.

9. The radio frequency transceiver system of claim 8, wherein the first antenna is connected to a first antenna port of the first radio frequency front end device;

the second antenna is connected with the second end of the second combiner, and a first port of the second combiner is connected with an auxiliary receiving port of the first radio frequency front-end device through the first filter; the other first port of the second combiner is connected with a common port of the external circuit, and one output port of the external circuit is connected with an intermediate frequency auxiliary transmitting port of the first radio frequency front-end device; the other output port of the external circuit is connected with an auxiliary receiving port of the first radio frequency front-end device;

the third antenna is connected with a medium-high frequency antenna port of the LFEM device;

the fourth antenna is connected with the second end of the fourth combiner, a first port of the fourth combiner is connected with an auxiliary medium-high frequency receiving port of the LFEM device through the second filter, and another first port of the fourth combiner is connected with another auxiliary medium-high frequency receiving port of the LFEM device through the third filter.

10. A communication device comprising a radio frequency transceiving system according to any one of claims 8 to 9.

11. A radio frequency front-end device is characterized in that the device is used for a main set antenna radio frequency link and is provided with a first intermediate frequency transmitting port, at least one receiving port, at least one auxiliary receiving port, an intermediate frequency auxiliary receiving and transmitting port and an intermediate frequency auxiliary receiving port; the intermediate frequency auxiliary receiving port is connected with an auxiliary receiving port through a radio frequency line; the radio frequency front end device comprises:

the first transmitting circuit is connected with the first intermediate frequency transmitting port and the switching circuit and is used for amplifying the first intermediate frequency band signal from the first intermediate frequency transmitting port and outputting the first intermediate frequency band signal from the intermediate frequency auxiliary receiving and transmitting port through the switching circuit;

the switching circuit is connected with the first transmitting circuit, the intermediate frequency auxiliary receiving and transmitting port and the intermediate frequency auxiliary receiving port and is used for separating a receiving and transmitting path according to the receiving and transmitting signal direction of the first intermediate frequency band signal so as to realize single-antenna bidirectional communication;

the first receiving circuit is connected with the receiving port and the auxiliary receiving port and used for amplifying a first middle-frequency-band signal which is received by the intermediate-frequency auxiliary receiving port and comes from the auxiliary receiving port connected with the intermediate-frequency auxiliary receiving port and outputting the first middle-frequency-band signal to the receiving port;

the first intermediate frequency band signal is a signal of one preset intermediate frequency band in a non-independent networking mode;

the radio frequency front-end device, wherein the auxiliary receiving ports include at least two; the radio frequency front-end device is also provided with a second intermediate frequency transmitting port and a first antenna port; a second antenna port is also arranged; the radio frequency front end device further comprises:

a plurality of second ports of the first switch circuit are respectively connected with the second transmitting circuit and the first receiving circuit, and a first port of the first switch circuit is connected with the first antenna port and used for selectively conducting radio frequency paths between the second transmitting circuit and the first receiving circuit and the first antenna port; a first port of the first switch circuit is connected with the second antenna port;

the second transmitting circuit is connected with the second intermediate frequency transmitting port and is used for amplifying a second intermediate frequency signal in the plurality of intermediate frequency signals from the second intermediate frequency transmitting port and outputting the second intermediate frequency signal to the first antenna port, and amplifying a plurality of intermediate frequency signals except the second intermediate frequency signal from the second intermediate frequency transmitting port and outputting the plurality of intermediate frequency signals to the first antenna port or the second antenna port;

the first receiving circuit is further connected to the second transmitting circuit, and is further configured to amplify at least a second intermediate frequency band signal of the multiple intermediate frequency band signals from the radio frequency path and output the amplified second intermediate frequency band signal to a receiving port, and amplify a main set MIMO signal of the second intermediate frequency band signal from an auxiliary receiving port and output the amplified main set MIMO signal to the receiving port;

the second intermediate frequency band signal is a signal of another preset intermediate frequency band in the non-independent networking mode;

the radio frequency front-end device is a radio frequency MHB L-PA Mid device.

12. The radio frequency front end device of claim 11, wherein the first transmit circuit comprises: a first intermediate frequency power amplifier; the input end of the first intermediate frequency power amplifier is connected with the first intermediate frequency transmitting port, and the output end of the first intermediate frequency power amplifier is connected with the switching circuit.

13. The rf front-end device of claim 11, wherein the switching circuit is a preset first intermediate band duplexer, wherein the preset first intermediate band is a band in which the first intermediate band signal is located;

a common port of the first intermediate-frequency duplexer is connected with the intermediate-frequency auxiliary transceiving port and is used for transmitting or receiving the first intermediate-frequency signal through an antenna connected with the intermediate-frequency auxiliary transceiving port;

one output port of the first intermediate-frequency band duplexer is connected with the output end of the first transmitting circuit and used for outputting the first intermediate-frequency band signal;

and the other output port of the first intermediate-frequency duplexer is connected with the intermediate-frequency auxiliary receiving port and used for outputting the first intermediate-frequency signal received by the public port of the first intermediate-frequency duplexer.

14. The radio frequency front end device of claim 13, wherein the preset first mid-band comprises one of: b3, B1 frequency band;

the preset first middle band duplexer comprises one of the following components: a B3 duplexer and a B1 duplexer;

the preset second intermediate frequency band comprises one of the following: n1 and N3 frequency bands.

15. The radio frequency front end device of claim 11, further provided with a second coupled output port;

the radio frequency front-end device further comprises a coupling circuit, which is arranged in a radio frequency path between the switching circuit and the intermediate frequency auxiliary transceiving port and is used for coupling the first intermediate frequency band signal in the radio frequency path so as to output a coupling signal through the second coupling output port.

16. The radio frequency front end device of claim 11, the second transmit circuit comprising: the second intermediate frequency power amplifier and the second switch unit; wherein,

the input end of the second intermediate frequency power amplifier is connected with the second intermediate frequency transmitting port, and the output end of the second intermediate frequency power amplifier is connected with a first port of the second switch unit and used for performing power amplification processing on a plurality of intermediate frequency signals including the second intermediate frequency signals received by the second intermediate frequency transmitting port;

and a plurality of second ports of the second switch unit are connected with the first switch circuit and used for outputting the amplified second intermediate frequency band signals to the first antenna port and outputting a plurality of intermediate frequency band signals except the second intermediate frequency band signals to the first antenna port or the second antenna port.

17. The radio frequency front end device of claim 11, wherein the first receive circuit comprises: at least three low noise amplifiers, at least one third switch unit and a fourth switch unit; wherein,

the input end of a low-noise amplifier is connected with a first port of a third switching unit, a second port of the third switching unit is connected with the first switching circuit, and the output end of the low-noise amplifier is connected with a second port of a fourth switching unit and used for amplifying the second middle-frequency-band signal and outputting the amplified second middle-frequency-band signal to a receiving port through the fourth switching unit;

the input end of a low-noise amplifier is connected with an auxiliary receiving port connected with the intermediate-frequency auxiliary receiving port, and the output end of the low-noise amplifier is connected with the other second port of the fourth switching unit and used for amplifying the first intermediate-frequency signal and outputting the amplified first intermediate-frequency signal to a receiving port through the fourth switching unit;

the input end of a low-noise amplifier is connected with one auxiliary receiving port, and the output end of the low-noise amplifier is connected with the second port of the fourth switching unit, and is used for amplifying the main set MIMO signal of the second intermediate frequency band signal and outputting the amplified main set MIMO signal to one receiving port through the fourth switching unit.

18. A radio frequency transceiver system, comprising: a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, a second combiner, a fourth combiner, a first filter, a second filter, and a third filter, a LFEM device, and the radio frequency front end device of any one of claims 11-17 as a second radio frequency front end device; wherein,

the radio frequency transceiver is connected with the first antenna through a second radio frequency front-end device to form a transmitting channel of the intermediate frequency band signal at least comprising a second intermediate frequency band signal and a main set receiving channel of the intermediate frequency band signal at least comprising the second intermediate frequency band signal;

the radio frequency transceiver is connected with a second antenna through a second radio frequency front-end device, a first filter and a second combiner to form a transmitting channel of a first intermediate frequency band signal, a main set receiving channel of the first intermediate frequency band signal and at least a main set MIMO receiving channel of a second intermediate frequency band signal;

the radio frequency transceiver is connected with a third antenna through an LFEM device to form a diversity receiving channel of the intermediate frequency band signal at least comprising a second intermediate frequency band signal;

the radio frequency transceiver is connected with a fourth antenna through the LFEM device, the second filter, the third filter and the fourth combiner to form a diversity receiving channel of a first intermediate frequency band signal and a diversity MIMO receiving channel of a second intermediate frequency band signal;

the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in a non-independent networking mode.

19. The radio frequency transceiver system of claim 18, wherein the first antenna is connected to a first antenna port of the second radio frequency front end device;

the second antenna is connected with the second end of the second combiner, and a first port of the second combiner is connected with an auxiliary receiving port of the second radio frequency front-end device through the first filter; the other first port of the second combiner is connected with the intermediate frequency auxiliary transceiving port of the second radio frequency front-end device; the intermediate frequency auxiliary receiving port of the second radio frequency front-end device is connected with an auxiliary receiving port of the second radio frequency front-end device;

the third antenna is connected with a medium-high frequency antenna port of the LFEM device;

the fourth antenna is connected with the second end of the fourth combiner, a first port of the fourth combiner is connected with an auxiliary medium-high frequency receiving port of the LFEM device through the second filter, and another first port of the fourth combiner is connected with another auxiliary medium-high frequency receiving port of the LFEM device through the third filter.

20. A communication device comprising the radio frequency transceiving system of claim 18 or 19.

21. A radio frequency front-end device is characterized in that the device is used for a main set antenna radio frequency link and is provided with a first intermediate frequency transmitting port, at least one receiving port and an intermediate frequency auxiliary receiving and transmitting port; the radio frequency front end device comprises:

the first transmitting circuit is connected with the first intermediate frequency transmitting port and the switching circuit and is used for amplifying the first intermediate frequency band signal from the first intermediate frequency transmitting port and outputting the first intermediate frequency band signal from the intermediate frequency auxiliary receiving and transmitting port through the switching circuit;

the switching circuit is connected with the first transmitting circuit, the intermediate frequency auxiliary receiving and transmitting port and the first receiving circuit and is used for separating a receiving and transmitting path according to the receiving and transmitting signal direction of the first intermediate frequency band signal so as to realize single-antenna two-way communication;

the first receiving circuit is connected with the receiving port and the switching circuit and used for amplifying a first intermediate frequency band signal received by the intermediate frequency auxiliary receiving and transmitting port of the switching circuit and outputting the first intermediate frequency band signal to a receiving port;

the first intermediate frequency band signal is a signal of one preset intermediate frequency band in a non-independent networking mode;

the radio frequency front-end device is also provided with a second intermediate frequency transmitting port, a first antenna port and at least one auxiliary receiving port; a second antenna port is also arranged; the radio frequency front end device further comprises:

a plurality of second ports of the first switch circuit are respectively connected with the second transmitting circuit and the first receiving circuit, and a first port of the first switch circuit is connected with the first antenna port and used for selectively conducting radio frequency paths between the second transmitting circuit and the first receiving circuit and the first antenna port respectively; a first port of the first switch circuit is connected with the second antenna port;

the second transmitting circuit is connected with the second intermediate frequency transmitting port and is used for amplifying a second intermediate frequency signal in the plurality of intermediate frequency signals from the second intermediate frequency transmitting port and outputting the second intermediate frequency signal to the first antenna port, and amplifying a plurality of intermediate frequency signals except the second intermediate frequency signal from the second intermediate frequency transmitting port and outputting the plurality of intermediate frequency signals to the first antenna port or the second antenna port;

the first receiving circuit is further connected to the second transmitting circuit, and is further configured to amplify at least a second intermediate frequency signal of the multiple intermediate frequency signals from the radio frequency path and output the amplified second intermediate frequency signal to another receiving port, and amplify a main set MIMO signal of the second intermediate frequency signal from an auxiliary receiving port and output the amplified main set MIMO signal to one receiving port;

the second intermediate frequency band signal is a signal of another preset intermediate frequency band in the non-independent networking mode;

the radio frequency front-end device is a radio frequency MHB L-PA Mid device.

22. The radio frequency front end device of claim 21, wherein the first transmit circuit comprises: a first intermediate frequency power amplifier; the input end of the first intermediate frequency power amplifier is connected with the first intermediate frequency transmitting port, and the output end of the first intermediate frequency power amplifier is connected with one input port of the switching circuit.

23. The rf front-end device of claim 22, wherein the switching circuit is a preset first if duplexer, wherein the preset first if is a frequency band in which the first if signal is located;

a common port of the first intermediate-frequency duplexer is connected with the intermediate-frequency auxiliary transceiving port and is used for transmitting or receiving the first intermediate-frequency signal through an antenna connected with the intermediate-frequency auxiliary transceiving port;

one output port of the first intermediate-frequency band duplexer is connected with the output end of the first transmitting circuit and used for outputting the first intermediate-frequency band signal;

the other output port of the first intermediate band duplexer is connected with an input port of the first receiving circuit, and is used for outputting the first intermediate band signal received through the common port of the first intermediate band duplexer.

24. The radio frequency front end device of claim 23, wherein the preset first mid-band comprises one of: b3, B1 frequency band;

the preset first middle band duplexer comprises one of the following components: a B3 duplexer and a B1 duplexer;

the preset second intermediate frequency band comprises one of the following: n1 and N3 frequency bands.

25. The rf front-end device of claim 21, further provided with a second coupled output port;

the radio frequency front-end device further comprises a coupling circuit, which is arranged in a radio frequency path between the switching circuit and the intermediate frequency auxiliary transceiving port and is used for coupling the first intermediate frequency band signal in the radio frequency path so as to output a coupling signal through the second coupling output port.

26. The radio frequency front end device of claim 21, wherein the second transmit circuit comprises: the second intermediate frequency power amplifier and the second switch unit; wherein,

the input end of the second intermediate frequency power amplifier is connected with the second intermediate frequency transmitting port, and the output end of the second intermediate frequency power amplifier is connected with a first port of the second switch unit and used for performing power amplification processing on a plurality of intermediate frequency signals including the second intermediate frequency signals received by the second intermediate frequency transmitting port;

and a plurality of second ports of the second switch unit are connected with the first switch circuit and used for outputting the amplified second intermediate frequency band signals to the first antenna port and outputting a plurality of intermediate frequency band signals except the second intermediate frequency band signals to the first antenna port or the second antenna port.

27. The radio frequency front end device of claim 21, wherein the first receive circuit comprises: at least three low noise amplifiers, at least one third switch unit and a fourth switch unit; wherein,

the input end of a low noise amplifier is connected with a first port of a third switching unit, a second port of the third switching unit is connected with the first switching circuit, and the output end of the low noise amplifier is connected with a second port of a fourth switching unit and used for amplifying the second middle frequency band signal and outputting the amplified second middle frequency band signal to a receiving port through the fourth switching unit;

the input end of a low-noise amplifier is connected with the other input port of the switching circuit, and the output end of the low-noise amplifier is connected with a second port of the fourth switching unit and used for amplifying the first intermediate frequency band signal and outputting the amplified first intermediate frequency band signal to a receiving port through the fourth switching unit;

the input end of a low-noise amplifier is connected with one auxiliary receiving port, and the output end of the low-noise amplifier is connected with a second port of the fourth switching unit, and is used for amplifying the main set MIMO signal of the second intermediate frequency band signal and outputting the amplified main set MIMO signal to one receiving port through the fourth switching unit.

28. A radio frequency transceiver system, comprising: a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, a second combiner, a fourth combiner, a first filter, a second filter, and a third filter, a LFEM device, and the radio frequency front end device of any one of claims 21-27 as a third radio frequency front end device; wherein,

the radio frequency transceiver is connected with the first antenna through a third radio frequency front-end device to form a transmitting channel of the intermediate frequency signals at least comprising second intermediate frequency signals and a main set receiving channel of the intermediate frequency signals at least comprising the second intermediate frequency signals;

the radio frequency transceiver is connected with a second antenna through a third radio frequency front-end device, a first filter and a second combiner to form a transmitting channel of a first intermediate frequency band signal, a main set receiving channel of the first intermediate frequency band signal and a main set MIMO receiving channel of a second intermediate frequency band signal;

the radio frequency transceiver is connected with a third antenna through an LFEM device to form a diversity receiving channel of the intermediate frequency band signal at least comprising a second intermediate frequency band signal;

the radio frequency transceiver is connected with a fourth antenna through the LFEM device, the second filter, the third filter and the fourth combiner to form a diversity receiving channel of a first intermediate frequency band signal and a diversity MIMO receiving channel of a second intermediate frequency band signal;

the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in a non-independent networking mode.

29. The radio frequency transceiver system of claim 28, wherein the first antenna is connected to a first antenna port of the third radio frequency front end device;

the second antenna is connected with the second end of the second combiner, and a first port of the second combiner is connected with an auxiliary receiving port of the third radio frequency front-end device through the first filter; the other first port of the second combiner is connected with the intermediate frequency auxiliary transceiving port of the third radio frequency front-end device;

the third antenna is connected with a medium-high frequency antenna port of the LFEM device;

the fourth antenna is connected with the second end of the fourth combiner, a first port of the fourth combiner is connected with an auxiliary medium-high frequency receiving port of the LFEM device through the second filter, and another first port of the fourth combiner is connected with another auxiliary medium-high frequency receiving port of the LFEM device through the third filter.

30. A communication device comprising the radio frequency transceiver system of claim 28 or 29.

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