CN113676193B

CN113676193B - Transmitting module, radio frequency system and communication equipment

Info

Publication number: CN113676193B
Application number: CN202110927510.3A
Authority: CN
Inventors: 陈锋; 仝林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-11-11
Anticipated expiration: 2041-08-12
Also published as: CN113676193A; WO2023016171A1

Abstract

The application provides a transmission module, radio frequency system and communications facilities, the processing of GSM low frequency signal and GSM high frequency signal, target intermediate frequency signal is supported to the transmission module, and can support the sending of two way signals simultaneously, for example, the simultaneous transmission of GSM low frequency signal and GSM high frequency signal/target intermediate frequency signal, or, the simultaneous transmission of target low frequency signal and target medium high frequency signal, or, the simultaneous transmission of GSM low frequency signal and target medium high frequency signal, or, the simultaneous transmission of target low frequency signal and GSM high frequency signal/target intermediate frequency signal. The transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost is reduced.

Description

Transmitting module, radio frequency system and communication equipment

Technical Field

The present application relates to the field of antenna technologies, and in particular, to a transmitting module, a radio frequency system, and a communication device.

Background

The currently commonly used transmitting module includes a low frequency amplifying circuit, a high frequency amplifying circuit and a selector switch, wherein the low frequency amplifying circuit is used for power amplification of a Global System for Mobile Communications (GSM) low frequency signal, the high frequency amplifying circuit is used for power amplification of a GSM high frequency signal, and the selector switch at the front end is used for signal access of a third generation Mobile communication technology (3 rd-generation, 3G), a fourth generation Mobile communication technology (4 rd-generation, 4G) and a fifth generation Mobile communication technology (5 rd-generation, 5G) except a GSM network. The current transmitting module only supports the connection combination of GSM signal power amplification and 3G/4G/5G signals, and has single function.

Disclosure of Invention

The embodiment of the application provides a transmitting module, a radio frequency system and communication equipment, which can improve the integration level of devices and reduce the cost.

In a first aspect, the present application provides a transmission module, including:

the medium-high frequency amplification circuit is configured to receive a global system for mobile communications (GSM) high-frequency transmission signal of a radio frequency transceiver through the first selector switch, amplify, filter and reduce noise of the GSM high-frequency transmission signal, and output the GSM high-frequency transmission signal to a medium-high frequency antenna port through the second selector switch, the third selector switch and the first coupler; or, the first selection switch is configured to receive a target intermediate frequency transmission signal of the radio frequency transceiver, amplify, filter and denoise the target intermediate frequency transmission signal, and output the target intermediate frequency transmission signal to a target intermediate frequency transmission port through the second selection switch, where the target intermediate frequency transmission signal is a target intermediate frequency signal, and the target intermediate frequency signal includes an intermediate frequency signal of any one of a third-generation 3G network, a fourth-generation 4G network and a fifth-generation 5G network;

and the GSM low-frequency amplification circuit is configured to receive a GSM low-frequency transmission signal of the radio frequency transceiver, amplify and filter the GSM low-frequency transmission signal, and output the GSM low-frequency transmission signal to a low-frequency antenna port through a fourth selection switch and the second coupler.

It can be seen that, in the embodiment of the present application, the transmitting module supports processing of a GSM low-frequency signal, a GSM high-frequency signal, and a target intermediate-frequency signal, and can simultaneously support sending of two paths of signals, for example, sending of a GSM low-frequency signal and a GSM high-frequency signal/a target intermediate-frequency signal simultaneously, or sending of a target low-frequency signal and a GSM high-frequency signal/a target intermediate-frequency signal simultaneously. The transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost is reduced.

In a second aspect, the present application provides a transmitter module comprising:

the selective amplification sub-module is used for selectively receiving the GSM high-frequency transmitting signal from the radio frequency transceiver, amplifying the GSM high-frequency transmitting signal and outputting the GSM high-frequency transmitting signal to a medium-high frequency antenna port; or, the target intermediate frequency transmitter is configured to selectively receive a target intermediate frequency transmission signal from the radio frequency transceiver, amplify the target intermediate frequency transmission signal, and output the target intermediate frequency transmission signal to a target intermediate frequency transmission port, where the target intermediate frequency transmission signal is a target intermediate frequency signal, and the target intermediate frequency signal includes an intermediate frequency signal of any one of a 3G network, a 4G network, and a 5G network;

and the GSM low-frequency amplification unit is used for receiving the GSM low-frequency transmission signal from the radio frequency transceiver, amplifying the GSM low-frequency transmission signal and outputting the amplified GSM low-frequency transmission signal to a low-frequency antenna port.

In a third aspect, the present application provides a transmitting module configured with a GSM high-frequency receiving port for receiving a GSM high-frequency transmitting signal of a radio frequency transceiver, a target intermediate-frequency receiving port for receiving a target intermediate-frequency transmitting signal of the radio frequency transceiver, a GSM low-frequency receiving port for receiving a GSM low-frequency transmitting signal of the radio frequency transceiver, a medium-high-frequency antenna port for transmitting a medium-high-frequency transmitting signal, a low-frequency antenna port for transmitting a GSM low-frequency transmitting signal, and a target intermediate-frequency transmitting port for transmitting the target intermediate-frequency transmitting signal, a medium-high-frequency transmitting/receiving port for receiving or transmitting a target medium-high-frequency signal, the target intermediate-frequency signal including an intermediate-frequency signal of any one of a 3G network, a 4G network, and a 5G network, the target low-frequency signal including a low-frequency signal of any one of the 3G network, the 4G network, and the 5G network, and the target medium-high-frequency signal including a high-frequency signal of any one of the 3G network, the 4G network, and the 5G network; the transmission module includes:

the first selection switch is an SPDT switch, one T port of the SPDT switch is connected with the GSM high-frequency receiving port, and the other T port of the SPDT switch is connected with the target intermediate-frequency receiving port and used for selectively receiving the GSM high-frequency transmitting signal or the target intermediate-frequency transmitting signal;

the medium-high frequency amplifying circuit is connected with the P port of the first selection switch and is used for amplifying, filtering and denoising the received GSM high-frequency transmitting signal or the target medium-frequency transmitting signal;

the second selection switch is an SPXT switch, X is an integer greater than 1, a P port of the SPXT switch is connected with the output end of the medium-high frequency amplification circuit, a first T port is sequentially connected with a third selection switch, a first coupler and the medium-high frequency antenna port and is used for outputting the GSM high-frequency transmitting signal to the medium-high frequency antenna port, and second to Xth T ports are correspondingly connected with the target intermediate frequency transmitting ports 830 one by one and are used for outputting the target intermediate frequency transmitting signal to any target intermediate frequency transmitting port;

the third selective switch is a SPYT switch, Y is an integer greater than 1, a P port of the SPYT switch is connected to the first end of the first coupler, a first T port is connected to a first T port of the second selective switch, and second to Y T ports are connected to the medium-high frequency transceiving ports of the transmitting module in a one-to-one correspondence;

a second end of the first coupler is connected with the medium-high frequency antenna port, a third end of the first coupler is connected with a first coupling port of the transmitting module, and the first coupler is used for detecting power information of at least one signal of the GSM high-frequency transmitting signal and the target medium-high frequency signal and outputting the power information through the first coupling port;

the GSM low-frequency amplifying circuit is connected with the GSM low-frequency receiving port and is used for amplifying and filtering the received GSM low-frequency transmitting signal;

the fourth selection switch is an SPZT switch, Z is an integer larger than 1, a first T port of the SPZT switch is connected with the output end of the GSM low-frequency amplification circuit, second to Z-th T ports are connected with the target low-frequency transceiving ports in a one-to-one correspondence mode, and a P port is connected with the first end of the second coupler;

and a second end of the second coupler is connected with the target low-frequency antenna port, and a third end of the second coupler is connected with the second coupling port of the transmitting module, and is used for detecting power information of at least one of the GSM low-frequency transmitting signal and the target low-frequency signal and outputting the power information through the second coupling port.

In a fourth aspect, the present application provides a radio frequency system comprising:

the transmitter module of any of the first to third aspects;

the antenna module group at least includes:

the first antenna unit is connected with the medium-high frequency antenna port of the transmitting module;

the second antenna unit is connected with the low-frequency antenna port of the transmitting module;

and the third antenna unit is connected with a target intermediate frequency transmitting port of the transmitting module.

In a fifth aspect, the present application provides a radio frequency system, comprising: the transmit module and the multi-mode multi-band power amplifier (MMPA) module of any one of the first to third aspects;

the MMPA supports a target signal, the target signal comprising any one of: the target low-frequency signal is a low-frequency signal of any one of a 3G network, a 4G network and a 5G network, the target intermediate-frequency signal is an intermediate-frequency signal of any one of the 3G network, the 4G network and the 5G network, the target high-frequency signal is a high-frequency signal of any one of the 3G network, the 4G network and the 5G network, and the target ultrahigh-frequency signal is an ultrahigh-frequency signal of the 5G network;

the transmission module and the MMPA module are configured to support dual-connection ENDC of a 4G network and a 5G network between a first frequency band and a second frequency band, wherein the first frequency band is a frequency band to which a target intermediate frequency signal supported by the transmission module belongs, and the second frequency band is a frequency band to which the target signal supported by the MMPA module belongs.

In a sixth aspect, the present application provides a communication device comprising:

the radio frequency system of the fourth or fifth aspect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1A is a schematic structural diagram of a radio frequency system 1 according to an embodiment of the present application;

fig. 1B is a schematic diagram of a conventional transmitting module according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a frame of a transmitting module 10 according to an embodiment of the present disclosure;

fig. 3 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 4 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 5 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 6 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 7 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 8 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 9 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 10 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 11 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 12 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 13 is a schematic frame diagram of another transmitting module 10 according to an embodiment of the present disclosure;

fig. 14 is a schematic diagram of a framework of a radio frequency system 1 according to an embodiment of the present application;

fig. 15 is a schematic block diagram of another rf system 1 according to an embodiment of the present application;

fig. 16 is a schematic block diagram of another radio frequency system 1 according to an embodiment of the present application;

FIG. 17 is a schematic diagram of a MMPA module according to an embodiment of the present disclosure;

fig. 18 is a schematic frame diagram of a communication device a according to an embodiment of the present application;

fig. 19 is a schematic frame diagram of a mobile phone according to an embodiment of the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and in the accompanying drawings, preferred embodiments of the present application are set forth. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.

The radio frequency system according to the embodiment of the present application may be applied to a communication device having a wireless communication function, where the communication device may be a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing devices connected to a wireless modem, and various forms of User Equipment (UE) (e.g., a mobile phone), a Mobile Station (MS), and so on. For convenience of description, the above-mentioned devices are collectively referred to as a communication device. The network devices may include base stations, access points, and the like.

As shown in fig. 1A, a commonly used rf system 1 for electronic devices such as mobile phones comprises a transmitting module 10 (also called TXM module), a multi-mode multi-band power amplifier MMPA module 40, an rf transceiver 30 and an antenna module 20, wherein the rf transceiver 30 is connected to the MMPA module 40 and the transmitting module 10, and the MMPA module 40 and the transmitting module 10 are connected to the antenna module 20. The rf transceiver 30 is configured to send or receive rf signals through the signal paths of the MMPA module 40 and the antenna module 20, or send or receive rf signals through the transmitting module 10 and the antenna module 20, and in addition, the MMPA module 40 may also be connected to the transmitting module 10 to form a signal processing path so as to send or receive rf signals through a corresponding antenna.

The transmitting module 10 comprises a low-frequency amplifying circuit 11, a high-frequency amplifying circuit 12 and a selection switch 13, wherein the low-frequency amplifying circuit 11 is used for power amplification of a GSM low-frequency signal, the high-frequency amplifying circuit 12 is used for power amplification of a GSM high-frequency signal, and the selection switch 13 at the front end is used for access of 3G/4G/5G signals except a GSM network. The current transmitting module 10 only supports the power amplification of the GSM signal and the transmission of the single signal of the GSM signal or the 3G/4G/5G signal, and has a single function. To realize a complex function such as endec, it is necessary to combine a plurality of MMPA modules, which results in a high system cost.

As shown in fig. 1B, a conventional transmit module (TXM) architecture is that a low-frequency power amplifier and a high-frequency power amplifier are connected to a switch, and a high-frequency signal or a low-frequency signal is output to an antenna port through a coupler by selection of the switch. The internal low-frequency power amplifier is used for amplifying the power of GSM850/900 signals, the high-frequency power amplifier is used for amplifying the power of GSM 1800/1900 signals, and the switch at the front end is also used for accessing other 3G/4G/5G signals. The transmit module includes a high frequency input port (illustrated as HB IN), a low frequency input port (illustrated as LB IN), and 7 high frequency transceiver ports (illustrated as TRX1-TRX 7), 7 low frequency transceiver ports (illustrated as TRX 8-14), and an antenna port (illustrated as ANT). It can be seen that the current device has a single function, only supports the connection and combination of GSM signal power amplification and 3G/4G/5G signal, and does not support CA between LB and MHB frequency bands.

As shown in fig. 2, an embodiment of the present application provides a transmitting module 10, including:

the medium-high frequency amplifying circuit 200 is configured to receive a GSM high frequency transmitting signal of the global system for mobile communications (GSM) of the radio frequency transceiver 30 via the first selection switch 110, amplify, filter and denoise the GSM high frequency transmitting signal, and output the GSM high frequency transmitting signal to the medium-high frequency antenna port 810 via the second selection switch 120, the third selection switch 130 and the first coupler 410; or, the first selection switch 110 is configured to receive a target intermediate frequency transmission signal of the radio frequency transceiver 30, amplify, filter and denoise the target intermediate frequency transmission signal, and output the target intermediate frequency transmission signal to the target intermediate frequency transmission port 830 via the second selection switch 120, where the target intermediate frequency transmission signal is a target intermediate frequency signal, and the target intermediate frequency signal includes an intermediate frequency signal of any one of a third generation 3G network, a fourth generation 4G network and a fifth generation 5G network;

the GSM low frequency amplifying circuit 300 is configured to receive the GSM low frequency transmitting signal of the radio frequency transceiver 30, amplify and filter the GSM low frequency transmitting signal, and output the amplified and filtered GSM low frequency transmitting signal to the low frequency antenna port 820 through the fourth selection switch 140 and the second coupler 420.

By way of example, the symbol "/" indicates an or. The GSM low-frequency transmitting signal can be frequency band signals of GSM850, GSM900 and the like, and the GSM high-frequency transmitting signal can be frequency band signals of GSM1800, GSM1900 and the like.

It can be seen that, in the embodiment of the present application, the transmitting module supports processing of a GSM low-frequency signal, a GSM high-frequency signal, and a target intermediate-frequency signal, and can simultaneously support sending of two paths of signals, for example, sending of a GSM low-frequency signal and a GSM high-frequency signal/target intermediate-frequency signal simultaneously, or sending of a target low-frequency signal and a target medium-high frequency signal simultaneously, or sending of a target low-frequency signal and a GSM high-frequency signal/target intermediate-frequency signal simultaneously. The transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost is reduced.

In some embodiments, as shown in fig. 3, the first selection switch 110 is an SPDT switch, a P port of the SPDT switch is connected to an input end of the middle-high frequency amplifying circuit 200, and two T ports are respectively connected to two ports for receiving the GSM high-frequency transmitting signal and the target middle-frequency transmitting signal;

the second selection switch 120 is an SPXT switch, X is an integer greater than 1, a P port of the SPXT switch is connected to an output end of the medium-high frequency amplification circuit 200, a first T port is connected to the third selection switch 130, and second to xth T ports are connected to the target intermediate frequency transmission port 830;

the third selection switch 130 is a SPYT switch, Y is an integer greater than 1, a P port of the SPYT switch is connected to the first coupler 410, a first T port is connected to a first T port of the second selection switch 120, and second to Y T ports are connected to the middle-high frequency transceiving port 840 of the transmitting module in a one-to-one correspondence;

the fourth selection switch 140 is a SPZT switch, Z is an integer greater than 1, a P port of the SPZT switch is connected to the second coupler 420, and a first T port is connected to the output of the GSM low-frequency amplification circuit 300.

The P Port is a Port (polarization) Port in this application, the Port for connecting an antenna in the multi-way switch in this application is called, the T Port is a shoot, and the Port for connecting a radio frequency module in the multi-way switch in this application is called, for example, a 4P4T switch.

In a specific implementation, the second selector switch 120 is an SPXT switch, which has X T ports in total, wherein the first T port is connected to the third selector switch 130, the other T ports are connected to the target intermediate frequency transmission port 830, the third selector switch 130 is an SPYT switch, which has Y T ports in total, wherein the first T port is connected to the second selector switch 120, the other T ports are connected to the medium-high frequency transceiving port 840, the fourth selector switch 140 is an SPYZ switch, which has Z T ports in total, wherein the first T port is connected to the low frequency amplification circuit 300, and the other T ports are connected to the target low frequency transceiving port 850.

As shown in fig. 4, the second selection switch is an SP3T switch, a first T port of the SP3T switch is connected to the third selection switch, and the other two T ports of the SP3T switch are respectively connected to the target intermediate frequency transmission port 1 and the target intermediate frequency transmission port 2. The third selector switch is the SP8T switch, the first T port of SP8T switch is connected with the second selector switch, the other 7T ports of SP8T switch connect well high frequency receiving and dispatching port 1, well high frequency receiving and dispatching port 2, well high frequency receiving and dispatching port 3, well high frequency receiving and dispatching port 4, well high frequency receiving and dispatching port 5, well high frequency receiving and dispatching port 6, well high frequency receiving and dispatching port 7 respectively. The third selector switch is an SP7T switch, one T port of the SP7T switch is connected with the GSM low-frequency amplification circuit, and the other 6T ports of the SP7T switch are respectively connected with a target low-frequency transceiving port 1, a target low-frequency transceiving port 2, a target low-frequency transceiving port 3, a target low-frequency transceiving port 4, a target low-frequency transceiving port 5, and a target low-frequency transceiving port 6.

It can be seen that, in the embodiment of the present application, the transmitting module supports processing of a GSM low-frequency signal, a GSM high-frequency signal, and a target intermediate-frequency signal, and can simultaneously support sending of two paths of signals, for example, sending of a GSM low-frequency signal and a GSM high-frequency signal/target intermediate-frequency signal simultaneously, or sending of a target low-frequency signal and a target medium-high frequency signal simultaneously, or sending of a target low-frequency signal and a GSM high-frequency signal/target intermediate-frequency signal simultaneously. The transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost is reduced. And the medium-high frequency amplifying circuit and the low-frequency amplifying circuit respectively adopt independent couplers, and can also meet the requirement of separately sampling LTE and NR frequency bands in the ENDC combination under certain conditions.

In some possible examples, the medium-high frequency transceiving port 840 is configured to receive or transmit a target medium-high frequency signal, where the target medium-high frequency signal includes the target intermediate frequency signal or a target high frequency signal, the target high frequency signal includes a high frequency signal of any one of the 3G network, the 4G network, and the 5G network, and the target low frequency transceiving port 850 is configured to receive or transmit a target low frequency signal, and the target low frequency signal includes a low frequency signal of any one of the 3G network, the 4G network, and the 5G network.

The third selector switch is used for selecting and transmitting the target medium-high frequency signal, and the fourth selector switch is used for selecting and transmitting the target low frequency signal, so that the carrier aggregation CA function of the transmitting module is realized. The front-end low-frequency signal and middle-high frequency signal switches are separated to meet the application requirements of low-frequency and middle-high frequency CA and ENDC.

Specifically, the frequency band division of signals of the 2G network, the 3G network, the 4G network, and the 5G network is shown in table 1.

GSM low frequency transmit signal: GSM850, GSM900, etc. band signals.

GSM high frequency transmit signal: GSM1800 frequency band signal, GSM1900 frequency band signal, etc.

Target high-frequency signal: the high-frequency signal comprises any one of a 3G network, a 4G network and a 5G network;

target intermediate frequency signal: the intermediate frequency signal of any network of a 3G network, a 4G network and a 5G network is included;

target low-frequency signal: the low-frequency signal comprises a low-frequency signal of any one of a 3G network, a 4G network and a 5G network;

target medium-high frequency signal: including a target intermediate frequency signal or a target high frequency signal.

It should be noted that, in the 5G network, the frequency band used by 4G is used, and only the identifier before the serial number is changed. In addition, some ultrahigh frequency bands which are not available in the 4G network, such as N77, N78, N79 and the like, are added to the 5G network.

For example, the low frequency signals may include low frequency 4G LTE signals and low frequency 5G NR signals. The intermediate frequency signals may include 4G LTE signals at an intermediate frequency and 5G NR signals at an intermediate frequency. The high frequency signals may include high frequency 4G LTE signals and high frequency 5G NR signals. The uhf signal may comprise a uhf 5G NR signal.

It can be seen that the transmitting module in this example supports multi-path flexible processing of transmitting GSM low-frequency signals, GSM high-frequency signals, target intermediate-frequency signals, medium-high frequency signals, and target low-frequency signals.

In some possible examples, as shown in fig. 5, the middle-high frequency amplifying circuit 200 includes a first middle-high frequency power amplifier 210, a first middle-high frequency matching circuit 220, a second middle-high frequency power amplifier 230, a second middle-high frequency matching circuit 240, a third middle-high frequency power amplifier 250, a first filter 260 and a noise reduction unit 270, an input end of the first middle-high frequency power amplifier 210 is connected to a P port of the first selection switch 110, an output end of the first middle-high frequency power amplifier 210 is connected to an input end of the first middle-high frequency matching circuit 220, an output end of the first middle-high frequency matching circuit 220 is connected to an input end of the second middle-high frequency power amplifier 230, an output end of the second middle-high frequency power amplifier 230 is connected to an input end of the second middle-high frequency matching circuit 240, an output end of the second middle-high frequency matching circuit 240 is connected to an input end of the third middle-high frequency power amplifier 250, an output end of the third middle-high frequency power amplifier 250 is connected to an input end of the first filter 260, an output end of the first filter 260 is connected to an input end of the noise reduction unit 270, and an output end of the second selection switch 120 is connected to the noise reduction unit 20.

In specific implementation, the GSM HB three-stage PA in the transmitting module is simultaneously used for amplifying 3G/4G/5G MB signals, the GSM and the 3G/4G/5G MB use the same load line, so that the size of the whole device is favorably reduced, and meanwhile, an ISM notch filter for solving the problem of coexistence with an ISM frequency band is designed between the SP3T and the PA.

Therefore, in the example, the medium-high frequency amplifying circuit amplifies, filters and reduces noise of the GSM high-frequency signal or the target intermediate-frequency signal, so that the transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost can be reduced.

In some possible examples, as shown in fig. 6, the GSM low frequency amplifying circuit 300 includes a first GSM low frequency power amplifier 310, a first GSM low frequency matching circuit 320, a second GSM low frequency power amplifier 330, a second GSM low frequency matching circuit 340, a third GSM low frequency matching circuit 350, and a second filter 360, an input of the first GSM low frequency power amplifier 310 is connected to the GSM low frequency receiving port of the transmitting module, an output of the first GSM low frequency power amplifier 310 is connected to an input of the first GSM low frequency matching circuit 320, an output of the first GSM low frequency matching circuit 320 is connected to an input of the second GSM low frequency power amplifier 330, an output of the second GSM low frequency power amplifier 330 is connected to an input of the second GSM low frequency matching circuit 340, an output of the second GSM low frequency matching circuit 340 is connected to an input of the third GSM low frequency power amplifier 350, an output of the third GSM low frequency power amplifier 350 is connected to an input of the second filter 360, and an output of the second filter 360 is connected to a first T port of the fourth selection switch 140.

Therefore, in the example, the transmitting module can also amplify and filter the low-frequency GSM transmitting signal, so that the transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost can be reduced.

In some possible examples, as shown in fig. 7, the transmit module is also configured with a VCC supply port 860; the VCC power supply port 860 is connected to a combined port 870, and the combined port 870 is an internal port of the middle-high frequency amplifier circuit 200, where power ports of the first middle-high frequency power amplifier 210, the second middle-high frequency power amplifier 230, the third middle-high frequency power amplifier 250, and the first GSM low-frequency power amplifier 310, the second GSM low-frequency power amplifier 330, and the third GSM low-frequency power amplifier 350 in the GSM low-frequency amplifier circuit 300 are combined.

For example, the supply voltage of the VCC supply port may be less than or equal to 3.6V.

Therefore, in this example, the medium-high frequency amplification circuit and the GSM low frequency amplification circuit share one VCC power supply port through the combiner port, which can improve the device integration level and reduce the cost.

In some possible examples, as shown in fig. 8, the transmit module is further configured with an SDATA port 881, an SCLK port 882, a VIO port 883, a VBAT port 884, a Vramp port 885; the transmission module further comprises: a controller 500 connected to the SDATA port 881, SCLK port 882, the VIO port 883, the VBAT port 884, and the Vramp port 885, for receiving the MIPI BUS control signal of the SDATA port 881 and the SCLK port 882, receiving the MIPI power supply signal of the VIO port 883, receiving the bias voltage signal of the VBAT port 884, and receiving the Vramp signal of the Vramp port 885.

Therefore, in the example, the controller is used for processing various signals, so that the signal processing capability of the transmitting module can be expanded, the device integration level can be improved, and the cost can be reduced.

For example, as shown IN fig. 9, an exemplary structure of a transmitting module 10 provided IN the embodiment of the present application includes a target intermediate frequency receiving Port (shown as MB _ IN) configured to receive an intermediate frequency signal of a radio frequency transceiver, a GSM high frequency receiving Port (shown as GSM HB _ IN) configured to receive a GSM high frequency signal of the radio frequency transceiver, a GSM low frequency receiving Port (shown as GSM LB _ IN) configured to receive a GSM low frequency signal of the radio frequency transceiver, a first intermediate frequency transmitting Port (shown as MB TX 1) and a second intermediate frequency transmitting Port (shown as MB TX 2) configured to transmit an intermediate frequency signal, 7 medium and high frequency transmitting and receiving ports (shown as MHB TRX1 and MHB TRX 7), a medium and high frequency antenna Port (shown as MHB Ant Port), a medium and high frequency coupling Port (CPL _ MH), a low frequency coupling Port (CPL _ L), 6 GSM transmitting and receiving ports (shown as MHB TRX1 and TRX vrx 7), a medium and high frequency antenna Port (shown as MHB Ant Port), a medium and high frequency coupling Port (CPL _ MH), a control Port (shown as mipa control Port, vslb), and a vslb.

The middle-high frequency amplifying circuit (shown as 2G MB and 4G MB PA) is used for acquiring a middle-frequency signal or a GSM high-frequency signal of a radio frequency transceiver through an SP3T switch, the middle-high frequency amplifying circuit comprises three power amplifiers, three middle-high frequency Matching circuits (shown as Matching Network), a filtering unit (shown as Match Filter) and a noise reduction unit (shown as ISM node), the middle-high frequency amplifying circuit amplifies, filters and reduces the middle-frequency signal and then outputs the amplified, filtered and reduced noise to a middle-frequency transmitting port through an SP4T switch, or amplifies, filters and reduces the GSM high-frequency signal and then outputs the amplified, filtered and reduced noise to a T port of an SP8T switch through the SP4T switch, the other 7T ports of the SP8T switch are connected with the middle-high frequency transmitting and receiving ports, and the P port of the SP8T switch is connected with a first coupler and outputs the GSM high-frequency signal to a middle-high frequency antenna port.

The low-frequency amplification circuit (shown as 2G LB PA) is configured to obtain a GSM low-frequency signal from the radio frequency transceiver, and includes three power amplifiers, three low-frequency Matching circuits (shown as Matching Network), and a filtering unit (shown as Match Filter), where the GSM low-frequency signal is amplified and filtered and then output to a T port of an SP7T switch, another 6T ports of the SP7T switch are connected to a low-frequency signal transceiving port, and the P port is connected to the second coupler and is configured to output the GSM low-frequency signal to a low-frequency antenna port.

As shown in fig. 10, the present embodiment provides another transmitting module 10, including:

the selective amplification sub-module 80 is configured to selectively receive the GSM high-frequency transmission signal from the radio frequency transceiver 30, perform amplification, filtering and noise reduction on the GSM high-frequency transmission signal, and output the signal to the medium-high frequency antenna port 810; or, the target intermediate frequency transmitter is configured to selectively receive a target intermediate frequency transmitting signal from the radio frequency transceiver 30, perform amplification, filtering, and noise reduction on the target intermediate frequency transmitting signal, and output the target intermediate frequency transmitting signal to the target intermediate frequency transmitting port 830, where the target intermediate frequency transmitting signal is a target intermediate frequency signal, and the target intermediate frequency signal includes an intermediate frequency signal of any one of a 3G network, a 4G network, and a 5G network;

the GSM low frequency amplification unit 301 is configured to receive a GSM low frequency transmission signal from the radio frequency transceiver 30, amplify and filter the GSM low frequency transmission signal, and output the amplified and filtered GSM low frequency transmission signal to the low frequency antenna port 820.

Therefore, in the embodiment of the present application, the transmitting module supports processing of the GSM low-frequency signal, the GSM high-frequency signal, and the target intermediate-frequency signal, and can simultaneously support sending of two paths of signals, for example, sending the GSM low-frequency signal and the GSM high-frequency signal/the target intermediate-frequency signal simultaneously, or sending the target low-frequency signal and the target medium-high frequency signal simultaneously, or sending the target low-frequency signal and the GSM high-frequency signal/the target intermediate-frequency signal simultaneously. The transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost is reduced.

In some embodiments, as shown in fig. 11, the selective amplification sub-module 80 includes a first selection switch 110 for selecting to receive the GSM high-frequency transmission signal from the radio frequency transceiver 30 or the target intermediate-frequency transmission signal;

a middle-high frequency amplifying unit 801, connected to the first selection switch 110, configured to amplify, filter, and denoise the target middle-frequency transmitting signal, and output the signal to the target middle-frequency transmitting port 830 through the second selection switch 120; or, the second selection switch 120, the third selection switch 130, and the first coupler 410 are used to amplify, filter, and reduce noise of the GSM high-frequency transmission signal, and output the GSM high-frequency transmission signal to the medium-high frequency antenna port 810.

Therefore, in the example, the transmitting module supports the processing of the GSM high-frequency signal and the target intermediate-frequency signal, so that the transmitting capability of the transmitting module can be expanded, the device integration level can be improved, and the cost can be reduced.

In some embodiments, as shown in fig. 12, the GSM low frequency amplification unit 300 is configured to output the amplified and filtered GSM low frequency transmission signal to a low frequency antenna port 820 through the fourth selection switch 140 and the second coupler 420.

For example, the medium-high frequency amplifying unit and the GSM low frequency amplifying unit may further include a plurality of power amplifiers and a power combining unit, respectively, and implement power amplification processing on the radio frequency signal in a power combining manner or the like.

For example, the middle-high frequency amplifying unit may include a first middle-high frequency power amplifier, a first middle-high frequency matching circuit, a second middle-high frequency power amplifier, a second middle-high frequency matching circuit, and a third middle-high frequency power amplifier to amplify the GSM high frequency transmission signal, and may further include a filter to filter the signal, and a noise reduction unit to perform noise reduction on the signal.

The GSM low frequency amplifying unit may include a first GSM low frequency power amplifier, a first GSM low frequency matching circuit, a second GSM low frequency power amplifier, a second GSM low frequency matching circuit, and a third GSM low frequency matching circuit, and may further include a second filter for performing filtering processing on the signal.

As shown in fig. 13, the present embodiment provides another transmitting module 10, including:

a GSM high-frequency receiving port 902 configured to receive a GSM high-frequency transmitting signal of the radio-frequency transceiver 30, a target intermediate-frequency receiving port 903 to receive a target intermediate-frequency transmitting signal of the radio-frequency transceiver 30, a GSM low-frequency receiving port 901 to receive a GSM low-frequency transmitting signal of the radio-frequency transceiver 30, a medium-high-frequency antenna port 810 to transmit a medium-high-frequency transmitting signal, a low-frequency antenna port 820 to transmit a GSM low-frequency transmitting signal, and a target intermediate-frequency transmitting port 830 to transmit the target intermediate-frequency transmitting signal, a medium-high-frequency transmitting/receiving port 840 to receive or transmit a target medium-high-frequency signal, a target low-frequency transmitting/receiving port 850 to receive or transmit a target low-frequency signal, the target intermediate-frequency signal including an intermediate-frequency signal of any one of a 3G network, a 4G network, and a 5G network, the target low-frequency signal including a low-frequency signal of any one of the 3G network, the 4G network, and the 5G network; the transmission module 10 includes:

the first selection switch 110 is an SPDT switch, one T port of the SPDT switch is connected to the GSM high-frequency receiving port 902, and the other T port is connected to the target intermediate-frequency receiving port 903, and is configured to select to receive the GSM high-frequency transmitting signal or the target intermediate-frequency transmitting signal;

a middle-high frequency amplifying circuit 200, connected to the P port of the first selection switch 110, for amplifying, filtering and denoising the received GSM high frequency transmitting signal or the target middle frequency transmitting signal;

a second selector switch 120 which is an SPXT switch, X is an integer greater than 1, a P port of the SPXT switch is connected to an output end of the medium-high frequency amplification circuit 200, a first T port is sequentially connected to a third selector switch 130, a first coupler 410 and the medium-high frequency antenna port 810, and is configured to output the GSM high-frequency transmit signal to the medium-high frequency antenna port 810, and second to xth T ports are connected to the target intermediate frequency transmission ports 830 in a one-to-one correspondence manner, and are configured to output the target intermediate frequency transmit signal to any target intermediate frequency transmission port 830;

the third selective switch 130 is a SPYT switch, Y is an integer greater than 1, a P port of the SPYT switch is connected to the first end of the first coupler 410, a first T port is connected to a first T port of the second selective switch 120, and second to Y T ports are connected to the middle-high frequency transceiving ports 840 of the transmitting module in a one-to-one correspondence;

the first coupler 410, a second end of the first coupler 410 is connected to the medium-high frequency antenna port 810, a third end is connected to the first coupling port 891 of the transmitting module 10, and is configured to detect power information of at least one of the GSM high-frequency transmitting signal and the target medium-high frequency signal, and output 891 the power information through the first coupling port;

the GSM low-frequency amplification circuit 300 is connected to the GSM low-frequency receiving port 901, and is configured to amplify and filter the received GSM low-frequency transmission signal;

the fourth selection switch 140 is an SPZT switch, Z is an integer greater than 1, a first T port of the SPZT switch is connected to the output end of the GSM low-frequency amplification circuit 300, second to Z-th T ports are connected to the target low-frequency transceiving ports 850 in a one-to-one correspondence, and a p port is connected to the first end of the second coupler 420;

in the second coupler 420, a second end of the second coupler 420 is connected to the target low-frequency antenna port 820, and a third end is connected to the second coupling port 892 of the transmitting module 10, and is configured to detect power information of at least one of the GSM low-frequency transmitting signal and the target low-frequency signal, and output the power information through the second coupling port 892.

For example, the medium-high frequency amplifying circuit may include a first medium-high frequency power amplifier, a first medium-high frequency matching circuit, a second medium-high frequency power amplifier, a second medium-high frequency matching circuit, and a third medium-high frequency power amplifier to amplify the GSM high-frequency transmission signal, and may further include a filter to filter the signal, and a noise reduction unit to perform noise reduction on the signal.

The GSM low frequency amplifying circuit may include a first GSM low frequency power amplifier, a first GSM low frequency matching circuit, a second GSM low frequency power amplifier, a second GSM low frequency matching circuit, and a third GSM low frequency matching circuit, and may further include a second filter for performing filtering processing on the signal after the GSM low frequency transmitting signal is amplified.

As shown in fig. 14, an embodiment of the present application provides a radio frequency system 1, including:

the transmitter module 10 according to any of the embodiments of fig. 1 to 13;

the antenna module 20 at least includes:

a first antenna unit 610 connected to the middle-high frequency antenna port 810 of the transmitting module 10;

a second antenna unit 620 connected to the low frequency antenna port 820 of the transmitting module 10;

the third antenna unit 630 is connected to the target if transmitting port 830 of the transmitting module 10.

In some embodiments, as shown in fig. 15, the transmitting module 10 further includes:

the medium-high frequency filtering and isolating unit 701 is connected with the medium-high frequency transceiving port 840 and is used for filtering and isolating medium-high frequency signals of a target;

a target medium-high frequency amplifying circuit 801 connected to the medium-high frequency filtering and isolating unit 701, and configured to amplify the target medium-high frequency signal;

a target low-frequency filtering and isolating unit 702 connected to the target low-frequency transceiving port 850 for filtering and isolating a target low-frequency signal;

and a target low-frequency amplifying circuit 802, connected to the target low-frequency filtering and isolating unit 702, for amplifying the target low-frequency signal.

For example, the medium-high frequency filtering and isolating unit and the target low frequency filtering and isolating unit may specifically include a filter and a duplexer, where the filter is used to filter a signal, and the duplexer is used to isolate a transmit signal and a receive signal.

Illustratively, the medium-high frequency amplifying circuit may include, for example, a target intermediate frequency amplifying circuit including, for example, a target intermediate frequency transmitting circuit and a target high frequency receiving circuit including, for example, a target high frequency transmitting circuit and a target high frequency receiving circuit including, for example, a power amplifier, and a target intermediate frequency receiving circuit and a target high frequency receiving circuit including, for example, a low noise filter.

For example, the middle-high frequency transceiving ports may include a plurality of middle-high frequency filtering and isolating units, and the middle-high frequency filtering and isolating unit shown in fig. 15 is connected to one middle-high frequency transceiving port, which is only one of the connection manners. The medium-high frequency filtering and isolating unit can be further connected with one of the medium-high frequency transceiving ports through a fifth selector switch.

The low frequency transceiving ports may include a plurality of low frequency filtering and isolating units, the low frequency filtering and isolating unit may be connected to any one of the plurality of low frequency transceiving ports, and the low frequency filtering shown in fig. 15 is connected to each type of unit and one low frequency transceiving port, which is only one of the connection manners. The low-frequency filtering and isolating unit can be connected with one of the medium-high frequency transceiving ports through a sixth selection switch.

In this example, it can be seen that the transmitting module, the medium-high frequency filtering and isolating unit, and the medium-high frequency amplifying circuit can implement dual transmission of the target medium-frequency transmitting signal and the medium-high frequency signal, the transmitting module, the target low-frequency filtering and isolating unit, and the target low-frequency amplifying circuit can implement dual transmission of the target medium-frequency transmitting signal and the target low-frequency signal, and the target medium-frequency transmitting signal, the medium-high frequency signal, the target medium-frequency transmitting signal, and the target low-frequency signal can implement dual transmission of the 4G signal +5G signal by configuration, that is, implement the endec.

In some embodiments, the third selection switch is configured to select to transmit the target medium-high frequency signal, and the fourth selection switch is configured to select to transmit the target low frequency signal, so as to implement a carrier aggregation CA function of the transmitting module.

It can be seen that in this example, the low and medium high frequency signals of the front end are switched separately to meet the application requirements of the low and medium high frequency CA and endec.

As shown in fig. 16, an embodiment of the present application provides a radio frequency system 1, including:

the transmit module 10, and the multi-mode multi-band power amplifier MMPA module 40 according to any of the embodiments of fig. 1-13;

the transmitting module 10 and the MMPA module 40 are configured to support dual-connection endec of a 4G network and a 5G network between a first frequency band and a second frequency band, where the first frequency band is a frequency band to which a target intermediate frequency signal supported by the transmitting module belongs, and the second frequency band is a frequency band to which the target signal supported by the MMPA module belongs.

It can be seen that, in this example, the radio frequency system includes the transmitting module and the MMPA module, so that the radio frequency system supports processing of any one of the GSM low-frequency signal, the GSM high-frequency signal, and the target intermediate-frequency signal, and the transmitting module supports the 4G/5G intermediate-frequency signal and can be used in cooperation with another MMPA supporting low-frequency/intermediate-frequency/high-frequency/ultra-high-frequency, so as to implement an endec combination between the intermediate-frequency signal and other frequency bands, and reduce one MMPA for implementing endec. The front-end low-frequency signal and middle-high frequency signal switches are separated to meet the application requirements of low-frequency and middle-high frequency CA and ENDC.

In some embodiments, as shown in fig. 17, the MMPA module 40 includes:

a target low-frequency transmitting circuit 401, configured to receive, under the action of the first power supply voltage, a signal in the third frequency band from the radio frequency transceiver 30, amplify the signal in the third frequency band, and output the amplified signal through a target low-frequency output port 405 of the local terminal, where the third frequency band is a frequency band to which the target low-frequency signal supported by the MMPA module belongs;

a target if transmitting circuit 402, configured to receive the target if signal from the rf transceiver 30 under the action of a second power supply voltage, amplify the target if signal, and output the amplified target if signal through a target if output port 406 at the local end;

a target high-frequency transmitting circuit 403, configured to receive the target high-frequency signal from the radio frequency transceiver under the action of the second power supply voltage, amplify the target high-frequency signal, and output the amplified target high-frequency signal through a target high-frequency output port 407 at the local end;

a target ultrahigh frequency transmitting circuit 404, configured to receive the target ultrahigh frequency signal from the radio frequency transceiver under the action of the second power supply voltage, amplify the target ultrahigh frequency signal, and output the amplified target ultrahigh frequency signal through a target ultrahigh frequency output port 408 at the local end;

wherein the supply circuits of the first supply voltage and the second supply voltage are independent of each other.

It can be seen that, in this example, the radio frequency system includes the transmitting module and the MMPA module, so that the radio frequency system supports processing of any one of the GSM low-frequency signal, the GSM high-frequency signal, and the target intermediate-frequency signal, and the transmitting module supports the 4G/5G intermediate-frequency signal and can be used in cooperation with another MMPA supporting low-frequency/intermediate-frequency/high-frequency/ultra-high-frequency, so as to implement an endec combination between the intermediate-frequency signal and other frequency bands, and reduce one MMPA for implementing endec.

In some embodiments, the MMPA module is configured to support the endec between the third frequency band and a fourth frequency band to which any one of the target intermediate frequency signal, the target high frequency signal, and the target ultra high frequency signal supported by the MMPA module belongs.

As shown in fig. 18, an embodiment of the present application provides a communication device a, including:

the radio frequency system 1 according to any of the embodiments of fig. 14 to 17.

Specifically, the GSM low-frequency signal transmitting port and the GSM low-frequency signal receiving port of the radio frequency transceiver 30 may be connected to a GSM low-frequency amplifying circuit, the medium-high frequency signal transmitting port and the medium-high frequency signal receiving port of the radio frequency transceiver 30 may be connected to a medium-high frequency amplifying circuit, and the like, and the target medium-frequency signal transmitting port and the target medium-frequency signal receiving port of the radio frequency transceiver 30 may be connected to a medium-high frequency amplifying circuit, and the like. And are not intended to be limiting.

As shown in fig. 19, the communication device is taken as a mobile phone 1900 for illustration, and specifically, as shown in fig. 19, the mobile phone 1900 includes a processor 1910, a memory 1920, a communication interface 1930, a radio frequency system 1940, and one or more programs 1921, where the one or more programs 1921 are stored in the memory 1920 and configured to be executed by the processor 1910, and the one or more programs 1921 include instructions for executing any step in the following method embodiments.

Communication interface 1930 includes internal interface and external interface, internal interface includes radio frequency interface, camera interface, display screen interface and microphone interface etc. external interface CAN include CAN interface, RS232 interface, RS485 interface and I2C interface etc.. The processor 1910 is connected with the radio frequency system 1940 through the internal interface, and the mobile phone is used for communicating with other electronic devices through the external interface.

Processor 1910 may be an Application Processor or a controller, such as a Central Processing Unit (CPU), a general purpose Processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, units, and circuits described in connection with the disclosure. The processor 1910 may also be a combination of computing functions, e.g., comprising one or more microprocessors, a combination of a DSP and a microprocessor, or the like.

The memory 1920 is used for storing program codes and data of the handset. The memory 1920 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and direct bus RAM (DR RAM).

The rf system 1940 may be the rf system of any of the embodiments described above, wherein the rf system 1940 is further configured to process rf signals of a plurality of different frequency bands. Such as satellite positioning radio frequency circuitry for receiving satellite positioning signals at 1575MHz, wiFi and bluetooth transceiver radio frequency circuitry for handling the 2.4GHz and 5GHz bands of IEEE802.11 communications, and cellular telephone transceiver radio frequency circuitry for handling wireless communications in cellular telephone bands, such as the 850MHz, 900MHz, 1800MHz, 1900MHz, 2100MHz bands, and Sub-6G bands. The Sub-6G frequency band may specifically include a 2.496GHz-6GHz frequency band and a 3.3GHz-6GHz frequency band.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A transmitter module, comprising:

the medium-high frequency amplification circuit is configured to receive a global system for mobile communications (GSM) high-frequency transmission signal of a radio frequency transceiver through the first selection switch, amplify, filter and denoise the GSM high-frequency transmission signal, and output the GSM high-frequency transmission signal to a medium-high frequency antenna port through the second selection switch, the third selection switch and the first coupler; or, the first selection switch is configured to receive a target intermediate frequency transmission signal of the radio frequency transceiver, amplify, filter and denoise the target intermediate frequency transmission signal, and output the target intermediate frequency transmission signal to a target intermediate frequency transmission port through the second selection switch, where the target intermediate frequency transmission signal is a target intermediate frequency signal, and the target intermediate frequency signal includes an intermediate frequency signal of any one of a third-generation 3G network, a fourth-generation 4G network and a fifth-generation 5G network;

the GSM low-frequency amplification circuit is configured to receive a GSM low-frequency transmitting signal of the radio frequency transceiver, amplify and filter the GSM low-frequency transmitting signal, and output the GSM low-frequency transmitting signal to a low-frequency antenna port through a fourth selection switch and the second coupler;

the transmitting module comprises a medium-high frequency transceiving port, the medium-high frequency transceiving port is used for receiving or transmitting a target medium-high frequency signal, the target medium-high frequency signal comprises a target intermediate frequency signal or a target high frequency signal, the target high frequency signal comprises a high frequency signal of any one of the 3G network, the 4G network and the 5G network, the target low frequency transceiving port is used for receiving or transmitting a target low frequency signal, and the target low frequency signal comprises a low frequency signal of any one of the 3G network, the 4G network and the 5G network;

the first selection switch is an SPDT switch, and two T ports of the SPDT switch are respectively connected with two ports for receiving the GSM high-frequency transmitting signal and the target intermediate-frequency transmitting signal; the second selection switch is an SPXT switch, X is an integer greater than 1, a first T port of the SPXT switch is connected with the third selection switch, and second to Xth T ports are connected with the target intermediate frequency transmission port;

the middle-high frequency amplifying circuit comprises a first middle-high frequency power amplifier, a first middle-high frequency matching circuit, a second middle-high frequency power amplifier, a second middle-high frequency matching circuit, a third middle-high frequency power amplifier, a first filter and a noise reduction unit, wherein the input end of the first middle-high frequency power amplifier is connected with the P port of a first selector switch, the output end of the first middle-high frequency power amplifier is connected with the input end of the first middle-high frequency matching circuit, the output end of the first middle-high frequency matching circuit is connected with the input end of the second middle-high frequency power amplifier, the output end of the second middle-high frequency power amplifier is connected with the input end of the third middle-high frequency matching circuit, the output end of the first filter is connected with the input end of the noise reduction unit, and the output end of the noise reduction unit is connected with the P port of the second selector switch.

2. The transmitter module of claim 1,

the third selection switch is a SPYT switch, Y is an integer greater than 1, a P port of the SPYT switch is connected with the first coupler, a first T port is connected with a first T port of the second selection switch, and second to Yth T ports are correspondingly connected with medium-high frequency transceiving ports of the transmitting module one by one;

the fourth selector switch is an SPZT switch, Z is an integer greater than 1, a P port of the SPZT switch is connected with the second coupler, a first T port is connected with the output end of the GSM low-frequency amplifying circuit, and a second T port to a Z-th T port are connected with the target low-frequency transceiving port of the transmitting module in a one-to-one correspondence mode.

3. The transmitter module of claim 1, wherein the low-frequency GSM amplifier circuit comprises a first low-frequency GSM power amplifier, a first low-frequency GSM matching circuit, a second low-frequency GSM power amplifier, a second low-frequency GSM matching circuit, a third low-frequency GSM matching circuit, and a second filter, an input terminal of the first low-frequency GSM power amplifier is connected to the low-frequency GSM receiving port of the transmitter module, an output terminal of the first low-frequency GSM power amplifier is connected to an input terminal of the first low-frequency GSM matching circuit, an output terminal of the first low-frequency GSM matching circuit is connected to an input terminal of the second low-frequency GSM power amplifier, an output terminal of the second low-frequency GSM matching circuit is connected to an input terminal of the second low-frequency GSM matching circuit, an output terminal of the second low-frequency GSM matching circuit is connected to an input terminal of the third low-frequency GSM power amplifier, an output terminal of the third low-frequency GSM power amplifier is connected to an input terminal of the second filter, and an output terminal of the second filter is connected to a first T port of the fourth selector switch.

4. The transmitter module of claim 3, wherein the transmitter module is further configured with a VCC power supply port; the VCC power supply port is connected with a combining port, and the combining port is an internal port of the medium-high frequency amplifying circuit after power ports of the first medium-high frequency power amplifier, the second medium-high frequency power amplifier, the third medium-high frequency power amplifier, the first GSM low-frequency power amplifier, the second GSM low-frequency power amplifier and the third GSM low-frequency power amplifier are combined.

5. The transmit module of claim 4, wherein the transmit module is further configured with an SDATA port, an SCLK port, a VIO port, a VBAT port, a sawtooth voltage Vramp port; the transmission module further comprises:

the controller is connected with the SDATA port, the SCLK port, the VIO port, the VBAT port and the Vramp port, and is used for receiving MIPI BUS control signals of a mobile processor industrial interface BUS of the SDATA port and the SCLK port, receiving MIPI power supply signals of the VIO port, receiving bias voltage signals of the VBAT port and receiving Vramp signals of the Vramp port.

6. A transmitter module, comprising:

the selective amplification sub-module is used for selectively receiving the GSM high-frequency transmitting signal from the radio frequency transceiver, amplifying, filtering and denoising the GSM high-frequency transmitting signal, and outputting the signal to a medium-high frequency antenna port; or, the target intermediate frequency transmitter is configured to selectively receive a target intermediate frequency transmission signal from the radio frequency transceiver, perform amplification, filtering, and noise reduction on the target intermediate frequency transmission signal, and output the target intermediate frequency transmission signal to a target intermediate frequency transmission port, where the target intermediate frequency transmission signal is a target intermediate frequency signal, and the target intermediate frequency signal includes an intermediate frequency signal of any one of a 3G network, a 4G network, and a 5G network;

the GSM low-frequency amplification unit is used for receiving the GSM low-frequency transmitting signal from the radio frequency transceiver, amplifying and filtering the GSM low-frequency transmitting signal and outputting the signal to a low-frequency antenna port;

the selective amplification sub-module comprises: the first selection switch is used for selecting to receive the GSM high-frequency transmission signal or the target intermediate-frequency transmission signal from the radio frequency transceiver; the medium-high frequency amplifying unit is connected with the first selection switch, is used for amplifying, filtering and denoising the target medium-frequency transmitting signal, and outputs the target medium-frequency transmitting signal to the target medium-frequency transmitting port through the second selection switch; or, the second selection switch, the third selection switch and the first coupler are used for amplifying, filtering and denoising the GSM high-frequency transmitting signal, and outputting the signal to a medium-high frequency antenna port through the second selection switch, the third selection switch and the first coupler in sequence;

the GSM low-frequency amplification unit is used for outputting the amplified and filtered GSM low-frequency transmitting signal to a low-frequency antenna port through a fourth selection switch and a second coupler;

the middle-high frequency amplifying unit comprises a first middle-high frequency power amplifier, a first middle-high frequency matching circuit, a second middle-high frequency power amplifier, a second middle-high frequency matching circuit, a third middle-high frequency power amplifier, a first filter and a noise reduction unit, wherein the input end of the first middle-high frequency power amplifier is connected with the P port of the first selector switch, the output end of the first middle-high frequency power amplifier is connected with the input end of the first middle-high frequency matching circuit, the output end of the first middle-high frequency matching circuit is connected with the input end of the second middle-high frequency power amplifier, the output end of the second middle-high frequency power amplifier is connected with the input end of the third middle-high frequency matching circuit, the output end of the first filter is connected with the input end of the noise reduction unit, and the output end of the noise reduction unit is connected with the P port of the second selector switch.

7. A transmitting module configured with a GSM high frequency receiving port for receiving a GSM high frequency transmitting signal of a radio frequency transceiver, a target intermediate frequency receiving port for receiving a target intermediate frequency transmitting signal of the radio frequency transceiver, a GSM low frequency receiving port for receiving a GSM low frequency transmitting signal of the radio frequency transceiver, a medium-high frequency antenna port for transmitting a medium-high frequency transmitting signal, a low frequency antenna port for transmitting a GSM low frequency transmitting signal, and a target intermediate frequency transmitting port for transmitting the target intermediate frequency transmitting signal, a medium-high frequency transceiving port for receiving or transmitting a target medium-high frequency signal, a target low frequency transceiving port for receiving or transmitting a target low frequency signal, the target intermediate frequency signal including an intermediate frequency signal of any one of a 3G network, a 4G network, and a 5G network, the target low frequency signal including a low frequency signal of any one of the 3G network, the 4G network, and the 5G network, the target medium-high frequency signal including a target intermediate frequency signal or a target high frequency signal, the target high frequency signal including a high frequency signal of any one of the 3G network, the 4G network, and the 5G network; the transmission module includes:

the medium-high frequency amplifying circuit is connected with a P port of the first selector switch and is used for amplifying, filtering and denoising the received GSM high-frequency transmitting signal or the target medium-frequency transmitting signal;

the second selection switch is an SPXT switch, X is an integer greater than 1, a P port of the SPXT switch is connected with the output end of the medium-high frequency amplification circuit, a first T port is sequentially connected with a third selection switch, a first coupler and the medium-high frequency antenna port and used for outputting the GSM high-frequency transmitting signal to the medium-high frequency antenna port, and second to Xth T ports are correspondingly connected with the target intermediate frequency transmitting ports one by one and used for outputting the target intermediate frequency transmitting signal to any target intermediate frequency transmitting port;

and a second end of the second coupler is connected with the target low-frequency antenna port, and a third end of the second coupler is connected with the second coupling port of the transmitting module, and the second coupler is used for detecting power information of at least one of the GSM low-frequency transmitting signal and the target low-frequency signal and outputting the power information through the second coupling port.

8. A radio frequency system, comprising:

the launch module of any of claims 1-7;

the antenna module group at least includes:

the first antenna unit is connected with a medium-high frequency antenna port of the transmitting module;

9. The radio frequency system of claim 8, wherein the transmit module further comprises:

the medium-high frequency filtering and isolating unit is connected with the medium-high frequency transceiving port and is used for filtering and isolating the medium-high frequency signal of the target;

the target medium-high frequency amplifying circuit is connected with the medium-high frequency filtering and isolating unit and is used for amplifying the target medium-high frequency signal;

the target low-frequency filtering and isolating unit is connected with the target low-frequency transceiving port and is used for filtering and isolating a target low-frequency signal;

and the target low-frequency amplifying circuit is connected with the target low-frequency filtering and isolating unit and is used for amplifying the target low-frequency signal.

10. The rf system according to claim 9, wherein the third selection switch is configured to select transmission of the target medium-high frequency signal, and the fourth selection switch is configured to select transmission of the target low frequency signal, so as to implement a carrier aggregation CA function of the transmitting module.

11. A radio frequency system, comprising: the transmit module and the Multimode Multiband Power Amplifier (MMPA) module of any one of claims 1-7;

the transmission module and the MMPA module are configured to support evolved universal terrestrial radio access of a 4G network and a 5G network between a first frequency band and a second frequency band and dual-connection ENDC of a new air interface, the first frequency band is a frequency band to which a target intermediate frequency signal supported by the transmission module belongs, and the second frequency band is a frequency band to which the target signal supported by the MMPA module belongs.

12. The rf system of claim 11, wherein the MMPA module comprises:

the target low-frequency transmitting circuit is used for receiving a signal of a third frequency band from the radio frequency transceiver under the action of a first power supply voltage, amplifying the signal of the third frequency band, and outputting the signal through a target low-frequency output port of a local terminal, wherein the third frequency band is a frequency band to which the target low-frequency signal supported by the MMPA module belongs;

the target intermediate frequency transmitting circuit is used for receiving the target intermediate frequency signal from the radio frequency transceiver under the action of a second power supply voltage, amplifying the target intermediate frequency signal and outputting the amplified signal through a target intermediate frequency output port at the local end;

the target high-frequency transmitting circuit is used for receiving the target high-frequency signal from the radio frequency transceiver under the action of the second power supply voltage, amplifying the target high-frequency signal and outputting the amplified target high-frequency signal through a target high-frequency output port at the local end;

the target ultrahigh frequency transmitting circuit is used for receiving the target ultrahigh frequency signal from the radio frequency transceiver under the action of the second power supply voltage, amplifying the target ultrahigh frequency signal and outputting the amplified signal through a target ultrahigh frequency output port at the local end;

13. The rf system of claim 12, wherein the MMPA module is configured to support the endec between the third frequency band and a fourth frequency band, the fourth frequency band being a frequency band to which any one of the target if signal, the target hf signal, and the target uhf signal supported by the MMPA module belongs.

14. A communication device, comprising:

the radio frequency system of any one of claims 8-13.