Radio frequency front end and radio frequency transmitting and receiving device and equipment

Abstract

The invention provides a radio frequency front end and a radio frequency transceiving device and equipment. The radio frequency front end comprises a plurality of antennas, a first switch module, a first power amplifier module and a second power amplifier module, wherein the plurality of antennas at least comprise a first antenna, a second antenna, a third antenna and a fourth antenna; the first power amplifier module is used for amplifying a transmitting signal output by the transceiver to obtain a first transmitting signal; the second power amplifier module is used for amplifying the transmitting signal output by the transceiver to obtain a second transmitting signal; and the first switch module is used for transmitting a transmitting signal output by the transceiver to the first power amplifier module or the second power amplifier module, and transmitting the first transmitting signal or the second transmitting signal to any antenna in the antennas connected with the corresponding power amplifier module.

Description

Technical Field

[0001] The present application relates to electronic technology, and is related to but not limited to radio frequency front-ends and radio frequency transceiver devices and equipment. Background Art

[0002] In order to meet users' increasingly high experience requirements for electronic devices, many measures have been added to electronic devices to improve user experience performance. For example, multiple antennas are set in the electronic device, and when the channel quality of the currently used antenna is poor, it can be switched to other antennas. However, even so, there is still the possibility of the antenna being "held to death". That is, the selectable antenna is blocked by hand, resulting in serious deterioration of antenna efficiency and weak radiation energy, which leads to abnormal communication. Summary of the invention

[0003] In view of this, the RF front end and RF transceiver device and equipment provided in the present application can reduce the probability of the antenna being "held to death", thereby improving communication performance.

[0004] According to one aspect of an embodiment of the present application, a radio frequency front end is provided, which includes: multiple antennas, a first switch module, a first power amplifier module and a second power amplifier module; wherein the multiple antennas include at least a first antenna, a second antenna, a third antenna and a fourth antenna; the first power amplifier module is used to amplify the transmission signal output by the transceiver to obtain a first transmission signal; the second power amplifier module is used to amplify the transmission signal output by the transceiver to obtain a second transmission signal; the first switch module is used to transmit the transmission signal output by the transceiver to the first power amplifier module or the second power amplifier module, and transmit the first transmission signal or the second transmission signal to any one of the antennas connected to the corresponding power amplifier module.

[0005] According to one aspect of an embodiment of the present application, a radio frequency transceiver is provided, the device comprising a transceiver and the radio frequency front end described in the embodiment of the present application; wherein the transceiver is electrically connected to the first power amplifier module and the second power amplifier module; the transceiver is used to convert a baseband signal into a corresponding transmission signal, or convert a received signal into a corresponding baseband signal.

[0006] According to one aspect of an embodiment of the present application, an electronic device is provided, wherein the device includes the radio frequency transceiver device described in the embodiment of the present application.

[0007] In an embodiment of the present application, a radio frequency front end is provided, wherein a first switch module enables a transmission signal via a transceiver to be arbitrarily switched among the multiple antennas through a first power amplifier module or a second power amplifier module; that is, the transmission signal can be freely switched among at least four antennas through the first switch module, thereby helping to reduce the possibility of the antenna being "held to death" and thereby improving communication performance.

[0008] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application and are used together with the specification to illustrate the technical solution of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0011] Figure 1 A schematic diagram of a terminal feeding back channel information based on a PMI mode;

[0012] Figure 2 A schematic diagram of a terminal feeding back channel information based on an SRS mode;

[0013] Figure 3 This is a schematic diagram of the SRS antenna transmission;

[0014] Figure 4 A schematic diagram of a structure of a radio frequency transceiver device for 3G / 4G / 5G MHB applications;

[0015] Figure 5 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0016] Figure 6 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0017] Figure 7 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0018] Fig. 8AA schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0019] Figure 8B A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0020] Fig. 9 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0021] Fig.10 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0022] Fig.11A A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0023] Fig. 11B A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0024] Fig.12 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application;

[0025] Fig.13 A schematic structural diagram of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0028] In the following description, reference is made to “some embodiments”, “this embodiment”, “embodiments of the present application” and examples, etc., which describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0029] The descriptions of “first, second, third” etc. that appear in the embodiments of the present application are only used for illustration and distinction of the description objects. There is no distinction of order, nor do they indicate any special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0030] The “electrical connection” that appears in the embodiments of the present application may be a direct connection or an indirect connection, that is, other devices may be connected to the circuit between the two ends of the electrical connection.

[0031] 5G networks support beamforming technology, which can transmit in a directional manner to terminals. In order for a base station to transmit in a directional manner, it must first detect the location of the terminal and the quality of the transmission path, so that the base station's resources can be more accurately allocated to each terminal.

[0032] The channel information fed back by the terminal has two different modes: PMI and SRS. The signal transmission of the PMI mode is as follows: Figure 1 As shown, the signal transmission of SRS mode is as follows Figure 2 As shown. From the standard definition, PMI mode is a function that all 5G terminals must support, while SRS mode is an optional function. In PMI mode, the terminal estimates channel information and resource requirements through a pre-set mechanism, relying on terminal measurements and various quantization algorithms, and reports them to the base station; while SRS mode uses channel reciprocity, and the terminal directly reports channel information to the base station. Obviously, the latter is more accurate.

[0033] The terminal sends SRS information, which is used by the base station to detect the terminal location and channel quality; SRS is the channel sounding reference signal (Sounding Reference Signal). Figure 3 The figure shows the schematic diagram of SRS antenna transmission, and the specific description is as follows:

[0034] 1) 1T1R: Fixed at Ant0 antenna to feed back information to the base station. Only the channel path information corresponding to ANT0 antenna can be detected. No round-robin transmission is performed. The channel path information corresponding to ANT1 antenna to ANT3 antenna is not uploaded to the base station. Therefore, the effect of base station sending data is very poor. Generally refers to NSA mode.

[0035] 2) 1T4R: The terminal only supports uplink single transmission, that is, at the same time, only one ANT antenna can be selected from Ant0 to Ant3 to transmit SRS information in turn; both NSA and SA modes are supported;

[0036] 3) 2T4R: Different from 1T4R, at the same time, two antennas can be selected from ANT0 to ANT3 to transmit SRS in turn; currently only SA mode is supported;

[0037] It can be understood that in SRS mode, the more antennas that can participate in sending reference signals, the more accurate the channel estimation, and the higher the rate that can be obtained; when the number of antennas is the same, SA mode completes channel estimation faster than NSA mode, improving the network experience.

[0038] In addition, there are other SRS modes such as 1T2R and 1T4R. It should be noted that the R mentioned here refers to Round, not Receiver.

[0039] Introduction to TAS and MAS:

[0040] TAS refers to transmitter antenna selection (TAS), while MAS refers to multiple antenna selection (MAS) optimization. For TAS / MAS technology, the modem processor will calculate the received signal strength of each antenna in real time, and then determine whether to switch antennas through the set signal difference threshold between multiple antennas (such as 6db), so as to select the antenna with better channel status to send signals. TAS technology can help the mobile phone determine the user's grip and posture of the phone, and make real-time antenna switching adjustments. For example, if it is found through measurement that the signal of antenna 1 has deteriorated, it will switch to antenna 2, thereby ensuring that the mobile phone can provide services on the antenna with the best signal quality at any time, solving the problem of signal blocking caused by hand holding and blocking the antenna.

[0041] Based on the development trend of 5G and taking into account the actual needs of the market, a new generation of combined power amplifier (PA) / low noise amplifier (LNA) devices suitable for the 5G frequency band have emerged, and RF transceiver devices for 5G frequency band applications based on the Phase7L solution (7th generation RF front-end solution) are constructed. Figure 4 As shown, the entire architecture of the device includes PAMID (including Coupler), DIFEM, 3P3T and DPDT.

[0042] Taking the N41 frequency band as an example, Figure 4 The working principle of the architecture shown is analyzed as follows:

[0043] Example 1, TX link via PAMID#1, signal flow is as described in 1) to 11) below:

[0044] 1) The transmit signal is output from the TX0 MHB port of the transceiver device and enters from the PAIN port of the PAMID#1 device;

[0045] 2) After being amplified by PAMID#1, it is output from the ANT port to the 3P3T switch;

[0046] 3) 3P3T switches to contact 4, and outputs to the ANT1 antenna port via Path01 as the main TX;

[0047] 4) 3P3T switches to contact 5 and outputs to ANT2 antenna port via Path02 as TAS1;

[0048] 5) 3P3T switches to contact 6 and outputs to the ANT3 antenna port via Path03 as TAS2.

[0049] The TX link is via PAMID#2, and the signal flow is as described in 6) to 6):

[0050] 6) The transmit signal is output from the TX1 MHB port of the Transceiver device and enters from the PAIN port of the PAMID#2 device;

[0051] 7) After being amplified by PAMID#2, it is output from the ANT port to DPDT switch contact 2;

[0052] 8) DPDT switches to contact 3, to 3P3T contact 3, 3P3T switches to contact 4, and outputs to ANT1 antenna port via Path01 as main TX;

[0053] 9) DPDT switches to contact 3, to 3P3T contact 3, 3P3T switches to contact 5, and outputs to ANT2 antenna port via Path02 as TAS1 (or SRS1);

[0054] 10) DPDT switches to contact 3, to 3P3T contact 3, 3P3T switches to contact 6, and outputs to ANT3 antenna port via Path03 as TAS2 (or SRS2);

[0055] 11) DPDT switches to contact 4, and the output is TAS3 (or SRS3) via Path04 to the ANT4 antenna port.

[0056] Example 2, PRX / PRX MIMO link, the signal flow is as described in 12) to 14) below:

[0057] 12) The received signal enters from the ANT1 antenna port, passes through the Path01 path, and reaches the 3P3T device contact 4;

[0058] 13) 3P3T switches to contact 1 and enters the PAMID#1ANT port;

[0059] 14) After amplification by the LNA device inside PAMID#1, the signal is output from SDR PRX0 and enters the Transceiver.

[0060] Example 3, DRX link, the signal flow is as follows 15) to 17):

[0061] 15) The received signal enters from the ANT2 antenna port, passes through the Path02 path, and reaches the 3P3T device contact 5;

[0062] 16) 3P3T switches to contact 2 and enters the DIFEM DRX1 port;

[0063] 17) After amplification by the LNA device inside the DIFEM, the signal is output from SDR DRX0 and enters the Transceiver.

[0064] Example 4, PRX MIMO / PRX link, the signal flow is as described in 18) to 21) below:

[0065] 18) The received signal enters from the ANT3 antenna port, passes through the Path03 path, and reaches the 3P3T device contact 6;

[0066] 19) 3P3T switches to contact 3, and enters contact 3 of the DPDT device;

[0067] 20) The DPDT device switches to contact 2 and enters the PAMID#2ANT1 port;

[0068] 21) After amplification by the LNA device inside PAMID#2, the signal is output from SDR PRX1 and enters the Transceiver.

[0069] Example 5, DRX MIMO link, the signal flow is as described in 22) to 24) below:

[0070] 22) The receiving signal enters from the ANT4 antenna port, passes through the Path04 path, and reaches the DPDT device contact 4;

[0071] 23) DPDT switches to contact 1 and enters DIFEM DRX2 port;

[0072] 24) After amplification by the LNA device inside the DIFEM, the signal is output from the SDR DRX1 and enters the Transceiver.

[0073] It can be seen that the whole solution realizes that the frequency band path of MHB PAMID#2 device can realize 1T4R SRS function and 4-antenna switching function through 3P3T and DPDT, while the frequency band path of MHB PAMID#1 device can only realize 1T2R SRS function and 2 / 3 antenna switching function. That is, Figure 4In the architecture shown, in order to achieve the four-antenna SRS function and 4-antenna TAS switching in the frequency band, MHB PAMID#2 needs to be selected, but it will bring the following problems:

[0074] 1) The frequency band of MHB PAMID#1 may be "dead": The frequency band combination of MHB PAMID#1 cannot switch freely between the four antennas. The antenna may be "dead", so the best performance cannot be achieved;

[0075] 2) The difficulty of antenna distribution design increases: Since PAMID#1 can only support 2-antenna switching or 3-antenna switching, in order to take into account the performance of 2-antenna switching or 3-antenna switching, and to reduce the probability of the antenna being "held to death", higher requirements are needed for the design and placement of the antenna.

[0076] based on Figure 4 To solve the problem of the architecture shown in the figure, an embodiment of the present application provides a radio frequency front end. Figure 5 A schematic diagram of the structure of a radio frequency transceiver device including a radio frequency front end provided in an embodiment of the present application, such as Figure 5 As shown, the RF front end 5 includes: multiple antennas, including a first antenna 51, a second antenna 52, a third antenna 53 and a fourth antenna 54; the RF front end 5 also includes a first switch module 55, a first power amplifier module 56 and a second power amplifier module 57; wherein,

[0077] A first power amplifier module 56, used to amplify the transmission signal output by the transceiver to obtain a first transmission signal;

[0078] A second power amplifier module 57, used to amplify the transmission signal output by the transceiver to obtain a second transmission signal;

[0079] A first switch module 55, used to transmit the first transmission signal or the second transmission signal to any one of the multiple antennas, or used to transmit the transmission signal output by the transceiver to the first power amplifier module 56 or the second power amplifier module 57, and transmit the first transmission signal or the second transmission signal to any one of the antennas connected to the corresponding power amplifier module;

[0080] It can be understood that in an embodiment of the present application, a radio frequency front end 5 is provided, wherein the first switch module 55 enables the transmission signal via the first power amplifier module 56 or the second power amplifier module 57 to be arbitrarily switched among the multiple antennas (i.e., at least 4 antennas), or the transmission signal via the transceiver can be arbitrarily switched among the multiple antennas through the first power amplifier module 56 or the second power amplifier module 57; that is, through the first switch module 55, the transmission signal can realize the free switching of at least 4 antennas, which is beneficial to reduce the possibility of the antenna being "held" and thus improve the communication performance.

[0081] Among them, Figure 5 As shown, all switches of the first switch module 55 can be connected between the power amplifier module and the antenna, so as to transmit the first transmission signal or the second transmission signal to any one of the multiple antennas; or part of the switches of the first switch module 55 can be connected between the power amplifier module and the antenna, and another part of the switches of the first switch module 55 can be connected between the power amplifier module and the transceiver, so as to transmit the transmission signal output by the transceiver to the first power amplifier module 56 or the second power amplifier module 57, and transmit the first transmission signal or the second transmission signal to any one of the antennas connected to the corresponding power amplifier module; in this way, in the event of failure of the first power amplifier module, the path between the transceiver and the second power amplifier module can be opened through the first switch module, and the transmission signal can be transmitted through the second power amplifier module, and vice versa, thereby ensuring the normal operation of the RF front end and further ensuring normal communication.

[0082] Specifically, in some embodiments (for the convenience of description, this embodiment is referred to as Embodiment 1), the first switch module 55 is connected between the power amplifier module (including the first power amplifier module 56 and the second power amplifier module 57) and the multiple antennas, and is used to conduct the path between the first power amplifier module 56 or the second power amplifier module 57 and any one of the multiple antennas to transmit the first transmission signal or the second transmission signal to the corresponding antenna.

[0083] Of course, in other embodiments (for the convenience of description, this embodiment is referred to as Embodiment 2), some switches in the first switch module 55 may be connected between the power amplifier module and the plurality of antennas, and another part of the switches may be connected between the transceiver and the power amplifier module. Specifically, Figure 6 As shown, the first switch module 55 includes a first switch sub-module 551, a second switch sub-module 552 and a third switch sub-module 553;

[0084] The first switch sub-module 551 is used to conduct the path between the transceiver and the first power amplifier module 56 to transmit the transmission signal output by the transceiver to the first power amplifier module 56, or to conduct the path between the transceiver and the second power amplifier module 57 to transmit the transmission signal output by the transceiver to the second power amplifier module 57; that is, the first switch sub-module 551 can not only conduct the path between the transceiver and the first functional module 56, but also conduct the path between the transceiver and the second functional module 57.

[0085] The second switch submodule 552 is used to conduct the path between the first power amplifier module 56 and the first antenna 51 or the second antenna 52 to transmit the first transmission signal to the first antenna 51 or the second antenna 52; that is, the second switch submodule 552 can not only conduct the path between the first power amplifier module 56 and the first antenna 51, but also conduct the path between the first power amplifier module 56 and the second antenna 52.

[0086] The third switch submodule 553 is used to conduct the path between the second power amplifier module 57 and the third antenna 53 or the fourth antenna 54, so as to transmit the second transmission signal to the third antenna 53 or the fourth antenna 54. That is, the third switch submodule 553 can not only conduct the path between the second power amplifier module 57 and the third antenna 53, but also conduct the path between the second function module 57 and the fourth antenna 54.

[0087] In this way, when the first power amplifier module fails, the first switch submodule 511 can open the path between the transceiver and the second power amplifier module, and transmit the transmission signal through the second power amplifier module, and vice versa, thereby ensuring the normal operation of the RF front end and further ensuring normal communication.

[0088] For Example 1, specifically, in a possible implementation, as Figure 7 As shown, the first switch module 55 includes a fifth switch 71, a sixth switch 72, a seventh switch 73 and an eighth switch 74; the first side of the fifth switch 71 includes at least a first contact 1, and the second side of the fifth switch 71 includes a second contact 2 and a third contact 3; the first side of the sixth switch 72 includes a first contact 1 and a second contact 2, and the second side of the sixth switch 72 includes a third contact 3 and a fourth contact 4; the first side of the seventh switch 73 includes at least a first contact 1, and the second side of the seventh switch 73 includes a second contact 2 and a third contact 3; the first side of the eighth switch 74 includes a first contact 1 and a second contact 2, and the second side of the eighth switch 74 includes a third contact 3 and a fourth contact 4; wherein,

[0089] The first contact 1 of the fifth switch 71 is electrically connected to the third port 1 (such as the ANT port) of the first power amplifier module 56, and the first transmission signal is output from the third port 1; the second contact 2 of the fifth switch 71 is electrically connected to the first contact 1 of the sixth switch 72, and the third contact 3 of the fifth switch 71 is electrically connected to the first contact 1 of the eighth switch 74;

[0090] The second contact 2 of the sixth switch 72 is electrically connected to the second contact 2 of the seventh switch 73, the third contact 3 of the sixth switch 72 is electrically connected to the first antenna 51, and the fourth contact 4 of the sixth switch 72 is electrically connected to the second antenna 52;

[0091] The first contact 1 of the seventh switch 73 is electrically connected to the fourth port 2 (such as the ANT port) of the second power amplifier module 57, and the second transmission signal is output from the fourth port 2; the third contact 3 of the seventh switch 73 is electrically connected to the second contact 2 of the eighth switch 74;

[0092] The third contact 3 of the eighth switch 74 is electrically connected to the third antenna 53 , and the fourth contact 4 of the eighth switch 74 is electrically connected to the fourth antenna 54 .

[0093] In some embodiments, the RF front end 5 further includes a controller, which can control the conduction of switches 71 to 74. Figure 7 The working principle of the RF front end shown in the figure, for the transmission signal, the signal flow is described as follows: if the transmission signal is output from a certain port of the transceiver, enters from a certain port of the first power amplifier module 56 (such as the input port of the power amplifier), and is amplified by the first power amplifier module 56 to obtain a first transmission signal, the first transmission signal is output from the third port 1 to the contact 1 of the switch 71; at this time,

[0094] (1) The controller can control contact 1 of switch 71 and contact 2 of switch 71 to be connected, and the first transmission signal reaches contact 1 of switch 72; at this time, the controller can control contact 1 and contact 3 of switch 72 to be connected, so that the first transmission signal reaches the port of antenna 51 through Path01; the controller can also control contact 1 and contact 4 of switch 72 to be connected, so that the first transmission signal reaches the port of antenna 52 through Path02.

[0095] (2) The controller can also control contact 1 of switch 71 to be conductive with contact 3 of switch 71, so that the first transmitting signal reaches contact 1 of switch 74 from contact 1 of switch 71; at this time, the controller can control contact 1 of switch 74 to be conductive with contact 3 of switch 74, so that the first transmitting signal reaches the port of antenna 53 via Path03; the controller can also control contact 1 of switch 74 to be conductive with contact 4 of switch 74, so that the first transmitting signal reaches the port of antenna 54 via Path04.

[0096] If the transmission signal is output from a certain port of the transceiver and enters from a certain port of the second power amplifier module 57 (such as the input port of the power amplifier), the second transmission signal is obtained after being amplified by the second power amplifier module 57, and the second transmission signal is output from the fourth port 2 to the contact 1 of the switch 73; at this time,

[0097] (1) The controller can control contact 1 of switch 73 and contact 2 of switch 73 to be conductive, so that the first transmission signal reaches contact 2 of switch 72; at this time, the controller can control contact 2 and contact 3 of switch 72 to be conductive, so that the second transmission signal reaches the port of antenna 51 via Path01; the controller can also control contact 2 and contact 4 of switch 72 to be conductive, so that the second transmission signal reaches the port of antenna 52 via Path02.

[0098] (2) The controller can also control contact 1 of switch 73 and contact 3 of switch 73 to be connected, so that the first transmission signal reaches contact 2 of switch 74 from contact 1 of switch 73; at this time, the controller can control contact 2 of switch 74 and contact 3 of switch 74 to be connected, so that the second transmission signal reaches the port of antenna 53 via Path03; the controller can also control contact 2 of switch 74 and contact 4 of switch 74 to be connected, so that the first transmission signal reaches the port of antenna 54 via Path04.

[0099] For Example 1, in a possible implementation, the first switch module 55 is also used to conduct the path between the receiving antenna for receiving signals and the first power amplifier module 56 or the second power amplifier module 57, so as to transmit the received signal to the first power amplifier module 56 or the second power amplifier module 57; accordingly, the first power amplifier module 56 or the second power amplifier module 57 is also used to amplify the received signal and then output it to the transceiver. Therefore, the first power amplifier module 56 that has the processing capability of both the received signal and the transmitted signal can also be understood as the first transceiver power amplifier module, and the second power amplifier module 57 that has the processing capability of both the received signal and the transmitted signal can also be understood as the second transceiver power amplifier module.

[0100] by Figure 7 Taking the RF front end shown in the figure as an example, for the received signal, the signal flow is described as follows: if the received signal enters from the port of the antenna 51, and reaches the contact 3 of the switch 72 via the Path01 path, at this time, the controller can control the contact 3 of the switch 72 to be connected with the contact 1 of the switch 72, and the received signal reaches the contact 2 of the switch 71. The controller controls the contact 2 of the switch 71 to be connected with the contact 1 of the switch 71, and the received signal enters from the third port 1 of the first power amplifier module 56, and is amplified by the LNA device inside the first power amplifier module 56 and then output to the transceiver;

[0101] If the received signal enters from the port of the antenna 51 and reaches the contact 3 of the switch 72 via the Path01 path, at this time, the controller can also control the contact 3 of the switch 72 to be connected with the contact 2 of the switch 72, and the received signal reaches the contact 2 of the switch 73. The controller controls the contact 2 of the switch 73 to be connected with the contact 1 of the switch 73, and the received signal enters from the fourth port 2 of the second power amplifier module 57, and is amplified by the LNA device inside the second power amplifier module 57 and then output to the transceiver;

[0102] If the received signal enters from the port of the antenna 52 and reaches the contact 4 of the switch 72 via the Path02 path, at this time, the controller can control the contact 4 of the switch 72 to be connected with the contact 1 of the switch 72, and the received signal reaches the contact 2 of the switch 71. The controller controls the contact 2 of the switch 71 to be connected with the contact 1 of the switch 71, and the received signal enters from the third port 1 of the first power amplifier module 56, and is amplified by the LNA device inside the first power amplifier module 56 and then output to the transceiver;

[0103] If the received signal enters from the port of the antenna 52 and reaches the contact 4 of the switch 72 via the Path02 path, at this time, the controller can also control the contact 4 of the switch 72 to be connected with the contact 2 of the switch 72, and the received signal reaches the contact 2 of the switch 73. The controller controls the contact 2 of the switch 73 to be connected with the contact 1 of the switch 73, and the received signal enters from the fourth port 2 of the second power amplifier module 57, and is amplified by the LNA device inside the second power amplifier module 57 and output to the transceiver;

[0104] If the received signal enters from the port of the antenna 53 and reaches the contact 3 of the switch 74 via the Path03 path, at this time, the controller can control the contact 3 of the switch 74 to be connected with the contact 1 of the switch 74, and the received signal reaches the contact 3 of the switch 71. The controller controls the contact 3 of the switch 71 to be connected with the contact 1 of the switch 71, and the received signal enters from the third port 1 of the first power amplifier module 56, and is amplified by the LNA device inside the first power amplifier module 56 and output to the transceiver;

[0105] If the received signal enters from the port of the antenna 53 and reaches the contact 3 of the switch 74 via the Path03 path, at this time, the controller can also control the contact 3 of the switch 74 to be connected with the contact 2 of the switch 74, and the received signal reaches the contact 3 of the switch 73. The controller controls the contact 3 of the switch 73 to be connected with the contact 1 of the switch 73, and the received signal enters from the fourth port 2 of the second power amplifier module 57, and is amplified by the LNA device inside the second power amplifier module 57 and then output to the transceiver;

[0106] If the received signal enters from the port of the antenna 54 and reaches the contact 4 of the switch 74 via the Path04, at this time, the controller can also control the contact 4 of the switch 74 to be connected with the contact 2 of the switch 74, and the received signal reaches the contact 3 of the switch 73. The controller controls the contact 3 of the switch 73 to be connected with the contact 1 of the switch 73, and the received signal enters from the fourth port 2 of the second power amplifier module 57, and is amplified by the LNA device inside the second power amplifier module 57 and then output to the transceiver;

[0107] If the received signal enters from the port of antenna 54 and reaches contact 4 of switch 74 via Path04, at this time, the controller can control contact 4 of switch 74 to be connected with contact 1 of switch 74, and the received signal reaches contact 3 of switch 71. The controller controls contact 3 of switch 71 to be connected with contact 1 of switch 71, and the received signal enters from the third port 1 of the first power amplifier module 56, is amplified by the LNA device inside the first power amplifier module 56, and is output to the transceiver.

[0108] Of course, in the embodiment of the present application, the reception signal received by the main antenna can be amplified by the LNA device inside the power amplifier module and then output to the transceiver, and the reception signal received by the auxiliary antenna can be processed by DiFEM and then output to the transceiver or filtered by an external filter and then amplified by the LNA device inside the power amplifier module and then output to the transceiver.

[0109] Specifically, in some embodiments, Fig. 8A As shown, the first side of the fifth switch 71 further includes a fourth contact 4, and the first side of the seventh switch 73 further includes a fourth contact 4; the RF front end 50 further includes a third filter 81 and a fourth filter 82; wherein,

[0110] The fourth contact 4 of the seventh switch 73 is electrically connected to the first port of the third filter 81, and the second port of the third filter 81 is electrically connected to the sixth port 3 of the second power amplifier module 57; the third filter 81 is used to filter the received signal received by the second antenna 52 and output it to the sixth port 3;

[0111] The fourth contact 4 of the fifth switch 71 is electrically connected to the first port of the fourth filter 82, and the second port of the fourth filter 82 is electrically connected to the fifth port 4 of the first power amplifier module 56; the fourth filter 82 is used to filter the received signal received by the fourth antenna 54 and output it to the fifth port.

[0112] Understandably, Fig. 8A The RF front-end structure shown is in Figure 7 The third filter 81 and the fourth filter 82 are added to the RF front-end structure shown in FIG. Fig. 8A The signal flow of the transmission link of the RF front end shown in FIG. 1 is not described in detail here. Figure 7 Description of the signal flow of the transmit signal of the RF front-end structure shown. Fig. 8AThe RF front-end structure shown in the figure, for the received signal, its signal flow is described as follows (assuming that antenna 51 and antenna 53 are main antennas, and antenna 52 and antenna 54 are auxiliary antennas): if the received signal enters from the port of antenna 51, it reaches contact 3 of switch 72 via Path01, at this time, the controller can control contact 3 of switch 72 to be connected with contact 1 of switch 72, the received signal reaches contact 2 of switch 71, the controller controls contact 2 of switch 71 to be connected with contact 1 of switch 71, the received signal enters from the third port 1 of the first power amplifier module 56, is amplified by the LNA device inside the first power amplifier module 56, and is output to the transceiver;

[0113] If the received signal enters from the port of antenna 52 and reaches contact 4 of switch 72 via Path02, at this time, the controller can control contact 4 of switch 72 to be connected with contact 2 of switch 72, and the received signal reaches contact 2 of switch 73. The controller controls contact 2 of switch 73 to be connected with contact 4 of switch 73, and the received signal passes through the third filter 81 and enters the LNA device inside the second power amplifier module for amplification and then output to the transceiver.

[0114] If the received signal enters from the port of the antenna 53 and reaches the contact 3 of the switch 74 via the Path03 path, at this time, the controller can control the contact 3 of the switch 74 to be connected with the contact 2 of the switch 74, and the received signal reaches the contact 3 of the switch 73. The controller controls the contact 3 of the switch 73 to be connected with the contact 1 of the switch 73, and the received signal enters from the fourth port 2 of the second power amplifier module 57, and is amplified by the LNA device inside the second power amplifier module 57 and then output to the transceiver;

[0115] If the received signal enters from the port of antenna 54 and reaches contact 4 of switch 74 via Path04, at this time, the controller can control contact 4 of switch 74 to be connected with contact 1 of switch 74, and the received signal reaches contact 3 of switch 71. The controller controls contact 3 of switch 71 to be connected with contact 4 of switch 71, and the received signal passes through the fourth filter 82 and enters the LNA device inside the first power amplifier module 56 for amplification and then output to the transceiver.

[0116] Of course, in the embodiment of the present application, the third filter 81 and the fourth filter 82 may also be replaced by DiFEM, which is used to process the received signal received by the auxiliary antenna and then output it to the receiver. Specifically, Figure 8B As shown, here for Figure 8B The working principle of the radio frequency transceiver device shown is not described again. Fig. 8A The difference between the signal flow of the RF front end shown is that the received signal received by the auxiliary antenna is processed by DiFEM and then output to the transceiver.

[0117] Of course, in the embodiments of the present application, it is not limited to Figure 7and Fig. 8A In summary, the structure of the first switch module 55 shown can realize arbitrary switching of the transmission signals output by the first power amplifier module and the second power amplifier module among the multiple antennas.

[0118] For example, for Example 1, in another possible implementation, as Fig. 9 As shown, the RF front end 5 also includes a fifth filter 91 and a sixth filter 92, and the first switch module 55 includes a ninth switch 93; the first side of the ninth switch 93 includes a first contact 1, a second contact 2, a third contact 3 and a fourth contact 4, and the second side of the ninth switch 93 includes a fifth contact 5, a sixth contact 6, a seventh contact 7 and an eighth contact 8; wherein,

[0119] The first contact 1 of the ninth switch 93 is electrically connected to the third port of the first power amplifier module 56;

[0120] The second contact 2 of the ninth switch 93 is electrically connected to the first port of the fifth filter 91, and the second port of the fifth filter 91 is electrically connected to the fifth port 4 of the first power amplifier module 56; the fifth filter 91 is used to filter the received signal received by the fourth antenna 54 and output it to the fifth port 4;

[0121] The third contact 3 of the ninth switch 93 is electrically connected to the first port of the sixth filter 92, and the second port of the sixth filter 92 is electrically connected to the sixth port 3 of the second power amplifier module 57; the sixth filter 92 is used to filter the received signal received by the second antenna 52 and output it to the sixth port 3;

[0122] The fourth contact 4 of the ninth switch 93 is electrically connected to the fourth port of the second power amplifier module 57, and the second transmission signal is output from the fourth port;

[0123] The fifth contact 5 of the ninth switch 93 is electrically connected to the first antenna 51 , the sixth contact 6 of the ninth switch 93 is electrically connected to the second antenna 52 , the seventh contact 7 of the ninth switch 93 is electrically connected to the third antenna 53 , and the eighth contact 8 of the ninth switch 94 is electrically connected to the fourth antenna 54 .

[0124] for Figure 6 Corresponding to Example 2, in a possible implementation, as Fig.10As shown, the first switch submodule 551 includes a first switch 101 and a second switch 102; the second switch submodule 552 includes a third switch 103, and the third switch submodule 553 includes a fourth switch 104; wherein the first side of the first switch 101 includes a first contact 1 and a second contact 2, and the second side of the first switch 101 includes a third contact 3 and a fourth contact 4; the first side of the second switch 102 includes a first contact 1 and a second contact 2, and the second side of the second switch 102 includes a third contact 3 and a fourth contact 4; the first side of the third switch 103 includes at least a first contact 1, and the second side of the third switch 103 includes a second contact 2 and a third contact 3; the first side of the fourth switch 104 includes at least a first contact 1, and the second side of the fourth switch 104 includes a second contact 2 and a third contact 3; wherein,

[0125] The first contact 1 of the first switch 101 is used to be electrically connected to the first port of the transceiver, the second contact 2 of the first switch 101 is electrically connected to the third contact 3 of the second switch 102, the third contact 3 of the first switch 101 is electrically connected to the first port of the first power amplifier module 56, and the fourth contact 4 of the first switch 101 is electrically connected to the first contact 1 of the second switch 102;

[0126] The second contact 2 of the second switch 102 is used to be electrically connected to the second port of the transceiver, and the fourth contact 4 of the second switch 102 is electrically connected to the second port of the second power amplifier module 57;

[0127] The first contact 1 of the third switch 103 is electrically connected to the third port of the first power amplifier module 56, the second contact 2 of the third switch 103 is electrically connected to the first antenna 51, and the third contact 3 of the third switch 103 is electrically connected to the second antenna 52;

[0128] The first contact 1 of the fourth switch 104 is electrically connected to the fourth port of the second power amplifier module 57 , the second contact 2 of the fourth switch 104 is electrically connected to the first antenna 51 , and the third contact 3 of the fourth switch 104 is electrically connected to the fourth antenna 54 .

[0129] In some embodiments, the RF front end 5 further includes a controller, which can control the conduction of the switches 101 to 104. Fig.10The working principle of the RF front end shown in the figure, for the transmission signal, the signal flow is described as follows: if the transmission signal is output from a port of the transceiver and enters the contact 1 of the switch 101, the controller can control the contact 1 of the switch 101 to be connected with the contact 3 of the switch 101, and the transmission signal enters the input port of the power amplifier of the first power amplifier module 56, and is amplified by the first power amplifier module 56 to obtain the first transmission signal, and the first transmission signal is output from the third port 1 to the contact 1 of the switch 103; at this time, the controller can control the contact 1 of the switch 103 to be connected with the contact 2 of the switch 103, and the first transmission signal is transmitted to the port of the antenna 51 via the Path01 path; or, the controller can also control the contact 1 of the switch 103 to be connected with the contact 3 of the switch 103, and the first transmission signal is transmitted to the port of the antenna 52 via the Path02 path.

[0130] If the transmitting signal is output from a port of the transceiver and enters contact 1 of switch 101, the controller can also control contact 1 of switch 101 to be connected with contact 4 of switch 101, and the transmitting signal is sent to contact 1 of switch 102. The controller controls contact 1 of switch 102 to be connected with contact 4 of switch 102, and the transmitting signal enters the input port of the power amplifier of the second power amplifier module 57. After amplification by the second power amplifier module 57, a second transmitting signal is obtained, and the second transmitting signal is output from the fourth port 2 to contact 1 of switch 104; at this time, the controller can control contact 1 of switch 104 to be connected with contact 2 of switch 104, and the second transmitting signal is sent to the port of antenna 53 via Path03; or, the controller can also control contact 1 of switch 104 to be connected with contact 3 of switch 104, and the second transmitting signal is sent to the port of antenna 54 via Path04.

[0131] by Fig.10 Taking the RF front end shown in the figure as an example, for the received signal, the signal flow is described as follows: if the received signal enters from the port of the antenna 51, and reaches the contact 2 of the switch 103 via the Path01 path, at this time, the controller can control the contact 2 of the switch 103 to be connected with the contact 1 of the switch 103, and the received signal enters from the third port 1 of the first power amplifier module 56, and is amplified by the LNA device inside the first power amplifier module 56 and then output to the transceiver;

[0132] If the received signal enters from the port of the antenna 52 and reaches the contact 3 of the switch 103 via the Path02, the controller can control the contact 3 of the switch 103 to be connected with the contact 1 of the switch 103, and the received signal enters from the third port 1 of the first power amplifier module 56, and is amplified by the LNA device inside the first power amplifier module 56 and then output to the transceiver;

[0133] If the received signal enters from the port of the antenna 53 and reaches the contact 2 of the switch 104 via the Path03, the controller can control the contact 2 of the switch 104 to be turned on with the contact 1 of the switch 104, and the received signal enters from the fourth port 2 of the second power amplifier module 57, and is amplified by the LNA device inside the second power amplifier module 57 and then output to the transceiver;

[0134] If the received signal enters from the port of the antenna 54 and reaches the contact 3 of the switch 104 via Path04, at this time, the controller can control the contact 3 of the switch 104 to be connected with the contact 1 of the switch 104, and the received signal enters from the fourth port 2 of the second power amplifier module 57, is amplified by the LNA device inside the second power amplifier module 57, and is output to the transceiver.

[0135] For embodiment 2, in a possible implementation, in some embodiments, the second switch submodule 552 is further used to conduct the path between the receiving antenna for receiving the signal and the first power amplifier module 56 to transmit the received signal to the first power amplifier module 56;

[0136] The third switch sub-module 553 is further used to conduct the path between the receiving antenna for receiving signals and the second power amplifier module 57 , so as to transmit the received signals to the second power amplifier module 57 .

[0137] It can be understood that the first power amplifier module 56 capable of processing both received and transmitted signals can also be understood as a first transceiver power amplifier module, and the second power amplifier module 57 capable of processing both received and transmitted signals can also be understood as a second transceiver power amplifier module.

[0138] In an embodiment of the present application, the reception signal received by the main antenna can be amplified by the LNA device inside the power amplifier module and then output to the transceiver, and the reception signal received by the auxiliary antenna can be processed by DiFEM and then output to the transceiver or filtered by an external filter and then amplified by the LNA device inside the power amplifier module and then output to the transceiver.

[0139] Specifically, in some embodiments, Fig.11A As shown, the RF front end 5 further includes a first filter 111 and a second filter 112, the first side of the third switch 103 further includes a fourth contact 4, and the first side of the fourth switch 104 further includes a fourth contact 4; wherein,

[0140] The fourth contact 4 of the third switch 103 is electrically connected to the first port of the first filter 111, and the second port of the first filter 111 is electrically connected to the fifth port of the first power amplifier module 56; the second filter 112 is used to filter the received signal of the second antenna 52 and output it to the fifth port;

[0141] The fourth contact 4 of the fourth switch 104 is electrically connected to the first port of the second filter 112, and the second port of the second filter 112 is electrically connected to the sixth port of the second power amplifier module 57; the second filter 112 is used to filter the received signal received by the fourth antenna 54 and output it to the sixth port.

[0142] Understandably, Fig.11A The RF front-end structure shown is in Fig.10 The first filter 111 and the second filter 112 are added to the RF front-end structure shown in FIG. Fig.11A The signal flow of the transmission link of the RF front end shown in FIG. 1 is not described in detail here. Fig.10 Description of the signal flow of the transmit signal of the RF front-end structure shown. Fig.11A The RF front-end structure shown in the figure, for the received signal, the signal flow is described as follows (assuming that antenna 51 and antenna 53 are main antennas, and antenna 52 and antenna 54 are auxiliary antennas): If the received signal enters from the port of antenna 51, it goes through Path01 to contact 2 of switch 103. At this time, the controller can control contact 2 of switch 103 to be connected with contact 1 of switch 103, and the received signal enters from the third port 1 of the first power amplifier module 56, is amplified by the LNA device inside the first power amplifier module 56, and is output to the transceiver;

[0143] If the received signal enters from the port of the antenna 52 and reaches the contact 3 of the switch 103 via the Path02, the controller can control the contact 3 of the switch 103 to be turned on with the contact 4 of the switch 103, and the received signal enters the fifth port 4 of the first power amplifier module 56 after being processed by the first filter 111, and is amplified by the LNA device inside the first power amplifier module 56 and then output to the transceiver;

[0144] If the received signal enters from the port of the antenna 53 and reaches the contact 2 of the switch 104 via the Path03, the controller can control the contact 2 of the switch 104 to be turned on with the contact 1 of the switch 104, and the received signal enters from the fourth port 2 of the second power amplifier module 56, and is amplified by the LNA device inside the second power amplifier module 57 and then output to the transceiver;

[0145] If the received signal enters from the port of the antenna 54 and reaches the contact 3 of the switch 104 via the Path04 path, at this time, the controller can control the contact 3 of the switch 104 and the contact 4 of the switch 104 to be turned on, and the received signal enters the sixth port 3 of the second power amplifier module 57 after being processed by the second filter 112, and is amplified by the LNA device inside the second power amplifier module 57 and output to the transceiver.

[0146] Of course, in the embodiment of the present application, the first filter 111 and the second filter 112 can also use a diversity receiving module, such as Fig. 11B As shown, the first input end of the diversity receiving module 113 is electrically connected to the fourth contact 4 of the third switch 103, and the second input end of the diversity receiving module 113 is electrically connected to the fourth contact 4 of the fourth switch 104; the diversity receiving module 113 is used to process (such as filter or filter and amplify) the received signal received by the auxiliary antennas in the first antenna 51 to the fourth antenna 54 and then output it to the transceiver. Exemplarily, the diversity receiving module 113 can be DiFEM, LDiFEM, LFEM or LNA BANK, etc. Here, for Fig. 11B The working principle of the radio frequency transceiver device shown is not described again. Fig.11A The difference between the signal flow of the RF front end shown is that the reception signal received by the auxiliary antenna is processed by the diversity reception module 113 and then output to the transceiver.

[0147] It should be noted that the transceiver can be understood as a radio frequency transceiver module or a radio frequency transceiver, whose function is to convert a baseband signal into a corresponding transmit signal (ie, a radio frequency signal), or to convert a receive signal into a corresponding baseband signal.

[0148] Exemplarily, in some embodiments, the first power amplifier module and the second power amplifier module may both be LNA / PA / filter integrated modules (LNA PA Module integrated with Duplexer, PAMID).

[0149] The following describes an exemplary application of the embodiments of the present application in a practical application scenario.

[0150] based on Figure 4 The defects of the RF transceiver shown in the figure are combined with the requirements of area and cost reduction, such as Fig.12 As shown, an embodiment of the present application provides an optimized 3G / 4G / 5G MHB application solution, namely a radio frequency transceiver.

[0151] like Fig.12As shown, the RF transceiver includes a transceiver, MHB PAMID#1, MHBPAMID#2, DPDT#1, DPDT#2, DPDT#3, DPDT#4, ANT1, ANT2, ANT3, ANT4, a fourth filter 82 and a third filter 81; wherein MHB PAMID#1 is an example of the first power amplifier module 56, MHB PAMID#2 is an example of the second power amplifier module 57, DPDT#1 is an example of the fifth switch 71, contact 2 of DPDT#1 is contact 4 of the fifth switch 71, contact 3 of DPDT#1 is contact 2 of the fifth switch 71, contact 4 of DPDT#1 is contact 3 of the fifth switch 71, DPDT#2 is an example of the sixth switch 72, DPDT#3 is an example of the seventh switch 73, contact 1 of DPDT#3 is contact 4 of the seventh switch 73, contact 2 of DPDT#3 is contact 1 of the seventh switch 73, contact 3 of DPDT#3 is contact 2 of the seventh switch 73, contact 4 of DPDT#3 is contact 3 of the seventh switch 73, DPDT#4 is an example of the eighth switch 74, ANT1 is an example of the first antenna 51, ANT2 is an example of the second antenna 52, ANT3 is an example of the third antenna 53, and ANT4 is an example of the fourth antenna 54.

[0152] like Fig.12 As shown, MHB PAMID#1 is electrically connected to the TX0 MHB port of the Transceiver, the ANT port of MHB PAMID#1 is electrically connected to the contact 1 of DPDT#1, the contact 2 of DPDT#1 is electrically connected to the contact 1 of DPDT#2, the contact 3 of DPDT#1 is electrically connected to the contact 1 of DPDT#4, the contact 4 of DPDT#1 is electrically connected to the first port of the fourth filter 82, and the second port of the fourth filter 82 is electrically connected to the LNA_IN1 port of MHB PAMID#1;

[0153] The contact 2 of DPDT#2 is electrically connected to the contact 2 of DPDT#3, the contact 3 of DPDT#2 is electrically connected to the antenna ANT1, and the contact 4 of DPDT#2 is electrically connected to the antenna ANT2;

[0154] The contact 1 of DPDT#3 is electrically connected to the ANT port of MHB PAMID#2, the contact 3 of DPDT#3 is electrically connected to the contact 2 of DPDT#4, the contact 4 of DPDT#3 is electrically connected to the first port of the third filter 81, and the second port of the third filter 81 is electrically connected to the LNA_IN2 port of MHB PAMID#2;

[0155] The contact 3 of DPDT#4 is electrically connected to the antenna ANT3, and the contact 4 of DPDT#4 is electrically connected to the antenna ANT4;

[0156] In addition, the SDR PRX0 port and the SDR DRX1 port of MHB PAMID#1 are both electrically connected to the Transceiver, and the SDR PRX1 port and the SDR DRX0 port of MHB PAMID#2 are both electrically connected to the Transceiver.

[0157] Take the N41 frequency band as an example for analysis. Fig.12 The working principle of the RF transceiver shown is analyzed as follows:

[0158] Example 6, TX link via PAMID#1, signal flow is as described in 25) to 30) below:

[0159] 25) The transmit signal is output from the TX0 MHB port of the Transceiver device and from the PAIN port of the PAMID#1 device.

[0160] Mouth entry;

[0161] 26) After being amplified by PAMID#1, it is output from the ANT port to DPDT#1 switch contact 1;

[0162] 27) DPDT#1 switches to contact 3, to DPDT#2 contact 1, DPDT#2 switches to contact 3, through Path01

[0163] The output to ANT1 antenna port is the main TX;

[0164] 28) DPDT#1 switches to contact 3, to DPDT#2 contact 1, DPDT#2 switches to contact 4, through Path02

[0165] The output to the ANT2 antenna port is TAS1 (or SRS1);

[0166] 29) DPDT#1 switches to contact 4, to DPDT#4 contact 1, DPDT#4 switches to contact 3, through Path03

[0167] The output to the ANT3 antenna port is TAS2 (or SRS2);

[0168] 30) DPDT#1 switches to contact 4, to DPDT#4 contact 1, DPDT#4 switches to contact 4, and outputs to ANT4 antenna port via Path04 as TAS3 (or SRS3);

[0169] Example 7, TX link via PAMID#2, signal flow is as described in 31) to 36) below:

[0170] 31) The transmit signal is output from the TX1 MHB port of the Transceiver device and from the PAIN port of the PAMID#2 device.

[0171] Mouth entry;

[0172] 32) After being amplified by PAMID#2, it is output from the ANT port to DPDT#3 switch contact 2;

[0173] 33) DPDT#3 switches to contact 3, to DPDT#2 contact 2, DPDT#2 switches to contact 3, through Path01

[0174] The output to ANT1 antenna port is the main TX;

[0175] 34) DPDT#3 switches to contact 3, to DPDT#2 contact 2, DPDT#2 switches to contact 4, through Path02

[0176] The output to the ANT2 antenna port is TAS1 (or SRS1);

[0177] 35) DPDT#3 switches to contact 4, to DPDT#4 contact 2, DPDT#4 switches to contact 3, through Path03

[0178] The output to the ANT3 antenna port is TAS2 (or SRS2);

[0179] 36) DPDT#3 switches to contact 4, to DPDT#4 contact 2, DPDT#4 switches to contact 4, and outputs to ANT4 antenna port via Path04 as TAS3 (or SRS3);

[0180] Example 8, PRX / PRX MIMO link, the signal flow is as described in 37) to 40) below:

[0181] 37) The receiving signal enters from the ANT1 antenna port, passes through the Path01 path, and reaches the DPDT#2 device contact 3;

[0182] 38) DPDT #2 switches to contact 1, to DPDT #1 contact 3;

[0183] 39) DPDT#1 switches to contact 1 and enters PAMID#1 ANT port;

[0184] 40) After amplification by the LNA device inside PAMID#1, the signal is output from SDR PRX0 and enters the Transceiver;

[0185] Example 9, DRX link, the signal flow is as described in 41) to 44) below:

[0186] 41) The receiving signal enters from the ANT2 antenna port, passes through the Path02 path, and reaches the DPDT#2 device contact 4;

[0187] 42) DPDT #2 switches to contact 2, to DPDT #3 contact 3;

[0188] 43) DPDT#3 switches to contact 1, passes through the DRX1 path to the filter, and then enters the PAMID#2 LNA_IN2 port;

[0189] 44) After amplification by the LNA device inside PAMID#2, the signal is output from SDR DRX0 and enters the Transceiver;

[0190] Example 10, PRX MIMO / PRX link, the signal flow is as described in 45) to 48) below:

[0191] 45) The receiving signal enters from the ANT3 antenna port, passes through the Path03 path, and reaches the DPDT#4 device contact 3;

[0192] 46) DPDT #4 switches to contact 2, to DPDT #3 contact 4;

[0193] 47) DPDT#3 switches to contact 2 and enters PAMID#2ANT port;

[0194] 48) After amplification by the LNA device inside PAMID#2, the signal is output from SDR PRX1 and enters the Transceiver;

[0195] Example 11, DRX MIMO link, the signal flow is as described in 49) to 52) below:

[0196] 49) The receiving signal enters from the ANT4 antenna port, passes through the Path04 path, and reaches the DPDT#4 device contact 4;

[0197] 50) DPDT #4 switches to contact 1, to DPDT #1 contact 4;

[0198] 51) DPDT#1 switches to contact 2, passes through the DRX2 path to the filter, and then enters the PAMID#1 LNA_IN1 port;

[0199] 52) After amplification by the LNA device inside PAMID#1, the signal is output from SDR DRX1 and enters the Transceiver;

[0200] In the embodiment of the present application, in combination with the requirements of reducing costs and achieving optimal antenna performance, it is proposed Fig.12 3G / 4G / 5G MHB optimization application solutions shown. Figure 4 Compared with the RF transceiver shown in the figure, the former adopts a 4-DPDT switch design to replace the latter's 3P3T+DPDT design. The former's DRX and DRX MIMO LNA can also reuse the PAMID LNA with an external filter, thereby saving one DiFEM.

[0201] Fig.12 The radio frequency transceiver shown is compared to Figure 4 The main advantages of the RF transceiver shown are:

[0202] 1) The dual PA can switch freely between the four antennas, which is beneficial to the best antenna performance and eliminates the possibility of "holding": Both PAs can realize the four-antenna SRS function and the four-antenna TAS switching, and can achieve four-directional antenna optimization to ensure communication performance.

[0203] 2) Reduce costs and area: Fig.12 The LNA of the DRX and DRX MIMO paths in the RF transceiver shown can also reuse the LNA inside the PAMID with an external filter, thereby saving one DiFEM, which is beneficial to reducing costs and wiring area.

[0204] In the embodiment of the present application, by adopting a 4-DPDT switch design and DRX and DRX MIMO channel external filters to reuse the LNA inside the PAMID, it is achieved that both PAs in the MHB band can realize the four-antenna SRS function and the four-antenna TAS switching, thereby improving the communication performance and achieving the purpose of reducing the occupied area and reducing the solution cost.

[0205] The following is a description of extension solution 1:

[0206] like Fig.12 The two DPDT switches in the RF transceiver shown can also be arranged between the Transceiver and the PAMID; in this way, while reducing the insertion loss of the path, the same dual PA free 4-cut function can be achieved. Therefore, the improved application solution block diagram is as follows Fig.13 As shown, the main improvements are as follows:

[0207] 1) The DPDT switch is located between the Transceiver and PAMID, and the TX can still realize the four-antenna SRS function and the 4-antenna TAS switching;

[0208] 2) The insertion loss of TX and RX paths is reduced (the insertion loss of 1 DPDT device is reduced), which can increase TX power and sensitivity and improve communication performance.

[0209] 3) A solution can be implemented to ensure communication after a single PA fails. For example, when the mobile phone PD detects that the power of PA#1 is abnormal (PA#1 fails), the SDR output can be switched to PA2 for transmission through DPDT#1, and vice versa, to ensure normal communication.

[0210] It should be noted that in Fig.13 , DPDT#1 is an example of the first switch 101, DPDT#2 is an example of the third switch 103, contact 2 of DPDT#2 is contact 4 of the third switch 103, contact 3 of DPDT#2 is contact 2 of the third switch 103, contact 4 of DPDT#2 is contact 3 of the third switch 103, DPDT#3 is an example of the second switch 102, DPDT#4 is an example of the fourth switch 104, contact 1 of DPDT#4 is contact 4 of the fourth switch 104, contact 2 of DPDT#4 is contact 1 of the fourth switch 104, contact 3 of DPDT#4 is contact 2 of the fourth switch 104, and contact 4 of DPDT#4 is contact 3 of the fourth switch 104.

[0211] Taking the N41 frequency band as an example, Fig.13 The working principle of the architecture shown is analyzed as follows:

[0212] Example 12, the primary TX link is via PAMID#1, and the signal flow is as described in 53) to 61) below:

[0213] 53) The transmit signal is output from the TX0 MHB port of the Transceiver device and enters DPDT#1 contact 1;

[0214] 54) DPDT#1 switches to contact 3 and enters the PAIN port of the PAMID#1 device;

[0215] 55) After being amplified by PAMID#1, it is output from the ANT port to DPDT#2 switch contact 1;

[0216] 56) DPDT#2 switches to contact 3, and outputs to the ANT1 antenna port via Path01 as the main TX;

[0217] 57) DPDT#2 switches to contact 4, and the output is TAS1 (or SRS1) via Path02 to the ANT2 antenna port;

[0218] 58) DPDT#1 switches to contact 4, to DPDT#3 contact 1, DPDT#3 switches to contact 4 and enters the PAIN port of PAMID#2 device;

[0219] 59) After being amplified by PAMID#2, it is output from the ANT port to DPDT#4 switch contact 2;

[0220] 60) DPDT#4 switches to contact 3, and outputs to ANT3 antenna port via Path03 as TAS2 (or SRS2);

[0221] 61) DPDT#4 switches to contact 4, and outputs to ANT4 antenna port via Path04 as TAS3 (or SRS3);

[0222] Example 13, primary TX link via PAMID#2, signal flow is as described in 62) to 70) below:

[0223] 62) The transmit signal is output from the TX1 MHB port of the Transceiver device and enters DPDT #3 contact 2;

[0224] 63) DPDT#3 switches to contact 4 and enters the PAIN port of the PAMID#2 device;

[0225] 64) After being amplified by PAMID#2, it is output from the ANT port to DPDT#4 switch contact 2;

[0226] 65) DPDT#4 switches to contact 3, and outputs to ANT3 antenna port via Path03 as main TX;

[0227] 66) DPDT#4 switches to contact 4, and outputs to ANT4 antenna port via Path04 as TAS1 (or SRS1);

[0228] 67) DPDT#3 switches to contact 3, to DPDT#1 contact 2, DPDT#1 switches to contact 3 and enters the PAIN port of PAMID#1 device;

[0229] 68) After being amplified by PAMID#1, it is output from the ANT port to DPDT#2 switch contact 1;

[0230] 69) DPDT#2 switches to contact 3, and outputs to ANT1 antenna port via Path01 as TAS2 (or SRS2);

[0231] 70) DPDT#2 switches to contact 4, and outputs to ANT2 antenna port via Path02 as TAS3 (or SRS3);

[0232] Example 14, PRX / PRX MIMO link, the signal flow is as described in 71) to 73) below:

[0233] 71) The receiving signal enters from the ANT1 antenna port, passes through the Path01 path, and reaches the DPDT#2 device contact 3;

[0234] 72) DPDT#2 switches to contact 1 and enters PAMID#1 ANT port;

[0235] 73) After amplification by the LNA device inside PAMID#1, the signal is output from SDR PRX0 and enters the Transceiver;

[0236] Example 15, DRX link, the signal flow is as follows 74) to 76):

[0237] 74) The receiving signal enters from the ANT4 antenna port, passes through the Path04 path, and reaches the DPDT#4 device contact 4;

[0238] 75) DPDT#4 switches to contact 1, passes through the DRX1 path to the filter, and then enters the PAMID#2 LNA_IN2 port;

[0239] 76) After amplification by the LNA device inside PAMID#2, the signal is output from SDR DRX0 and enters the Transceiver;

[0240] Example 16, PRX MIMO / PRX link, the signal flow is as described in 77) to 79) below:

[0241] 77) The receiving signal enters from the ANT3 antenna port, passes through the Path03 path, and reaches the DPDT#4 device contact 3;

[0242] 78) DPDT#4 switches to contact 2 and enters PAMID#2ANT port;

[0243] 79) After amplification by the LNA device inside PAMID#2, the signal is output from SDR PRX1 and enters the Transceiver;

[0244] Example 17, DRX MIMO link, the signal flow is as follows 80) to 82):

[0245] 80) The receiving signal enters from the ANT2 antenna port, passes through the Path02 path, and reaches the DPDT#2 device contact 4;

[0246] 81) DPDT#4 switches to contact 2, passes through the DRX2 path to the filter, and then enters the PAMID#1 LNA_IN1 port;

[0247] 82) After amplification by the LNA device inside PAMID#1, the signal is output from SDR DRX1 and enters the Transceiver;

[0248] The above analysis shows the transmit and receive link operating modes of the N41 band. The operating modes of other MHB bands are similar to those of N41 and will not be described in detail.

[0249] The embodiment of the present application further provides a radio frequency transceiver, which includes the radio frequency front end 5 and the transceiver described in the embodiment of the present application; wherein the transceiver is electrically connected to the first power amplifier module 56 and the second power amplifier module 57; the transceiver is used to convert the baseband signal into the corresponding transmission signal, or convert the received signal into the corresponding baseband signal.

[0250] An embodiment of the present application provides an electronic device, which includes the radio frequency transceiver described in the embodiment of the present application.

[0251] It can be understood that the electronic device mentioned in the embodiments of the present application can be various types of devices with communication functions, for example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a watch or a bracelet, etc.

[0252] It should be understood that the "one embodiment" or "an embodiment" or "some embodiments" or "in a possible implementation" or "example" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" or "in some embodiments" or "in a possible implementation" or "example" appearing throughout the specification may not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The above-mentioned sequence numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above description of the various embodiments tends to emphasize the differences between the various embodiments, and the same or similar aspects can be referenced to each other. For the sake of brevity, this article will not repeat them.

[0253] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there may be three relationships. For example, object A and / or object B can represent three situations: object A exists alone, object A and object B exist at the same time, and object B exists alone.

[0254] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0255] In the several embodiments provided in this application, it should be understood that the disclosed devices and apparatuses, etc., can be implemented in other ways. The embodiments described above are only exemplary. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0256] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0257] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A radio frequency front end, characterized in that: The RF front end includes: multiple antennas, a first switch module, a first power amplifier module and a second power amplifier module; wherein the multiple antennas include at least a first antenna, a second antenna, a third antenna and a fourth antenna; The first power amplifier module is used to amplify the transmission signal output by the transceiver to obtain a first transmission signal; The second power amplifier module is used to amplify the transmission signal output by the transceiver to obtain a second transmission signal; The first switch module is used to transmit the transmission signal output by the transceiver to the first power amplifier module or the second power amplifier module, and to transmit the first transmission signal or the second transmission signal to any one of the antennas connected to the corresponding power amplifier module.

2. The radio frequency front end according to claim 1, characterized in that: The first switch module includes a first switch sub-module, a second switch sub-module and a third switch sub-module; wherein, The first switch submodule is used to conduct the path between the transceiver and the first power amplifier module to transmit the transmission signal output by the transceiver to the first power amplifier module, or to conduct the path between the transceiver and the second power amplifier module to transmit the transmission signal output by the transceiver to the second power amplifier module; The second switch submodule is used to conduct the path between the first power amplifier module and the first antenna or the second antenna to transmit the first transmit signal to the first antenna or the second antenna; The third switch submodule is used to conduct the path between the second power amplifier module and the third antenna or the fourth antenna to transmit the second transmit signal to the third antenna or the fourth antenna.

3. The radio frequency front end according to claim 2, characterized in that: The second switch sub-module is further used to conduct the path between the receiving antenna for receiving signals and the first power amplifier module, so as to transmit the received signal to the first power amplifier module.

4. The radio frequency front end according to claim 2 or 3, characterized in that: The third switch submodule is further used to conduct the path between the receiving antenna for receiving signals and the second power amplifier module, so as to transmit the received signal to the second power amplifier module.

5. The radio frequency front end according to claim 2 or 3, characterized in that: The first switch submodule includes a first switch and a second switch; the second switch submodule includes a third switch, and the third switch submodule includes a fourth switch; wherein the first side of the first switch includes a first contact and a second contact, and the second side of the first switch includes a third contact and a fourth contact; the first side of the second switch includes a first contact and a second contact, and the second side of the second switch includes a third contact and a fourth contact; the first side of the third switch includes at least a first contact, and the second side of the third switch includes a second contact and a third contact; the first side of the fourth switch includes at least a first contact, and the second side of the fourth switch includes a second contact and a third contact; wherein, The first contact of the first switch is used to be electrically connected to the first port of the transceiver, the second contact of the first switch is electrically connected to the third contact of the second switch, the third contact of the first switch is electrically connected to the first port of the first power amplifier module, and the fourth contact of the first switch is electrically connected to the first contact of the second switch; The second contact of the second switch is used to be electrically connected to the second port of the transceiver, and the fourth contact of the second switch is electrically connected to the second port of the second power amplifier module; The first contact of the third switch is electrically connected to the third port of the first power amplifier module, the second contact of the third switch is electrically connected to the first antenna, and the third contact of the third switch is electrically connected to the second antenna; The first contact of the fourth switch is electrically connected to the fourth port of the second power amplifier module, the second contact of the fourth switch is electrically connected to the first antenna, and the third contact of the fourth switch is electrically connected to the fourth antenna.

6. The radio frequency front end according to claim 5, characterized in that: The RF front end further includes a first filter, and the first side of the third switch further includes a fourth contact; wherein, The fourth contact of the third switch is electrically connected to the first port of the first filter, and the second port of the first filter is electrically connected to the fifth port of the first power amplifier module; the second filter is used to filter the received signal of the second antenna and output it to the fifth port.

7. The radio frequency front end according to claim 5 or 6, characterized in that: The RF front end further includes a second filter, and the first side of the fourth switch further includes a fourth contact; wherein, The fourth contact of the fourth switch is electrically connected to the first port of the second filter, and the second port of the second filter is electrically connected to the sixth port of the second power amplifier module; the second filter is used to filter the received signal received by the fourth antenna and output it to the sixth port.

8. The radio frequency front end according to claim 5, characterized in that: The RF front end further includes a diversity receiving module, wherein a first input end of the diversity receiving module is electrically connected to a fourth contact of the third switch, and a second input end of the diversity receiving module is electrically connected to a fourth contact of the fourth switch; The diversity receiving module is used to process the reception signals received by the auxiliary antennas from the first antenna to the fourth antenna and output the processed reception signals to the transceiver.

9. A radio frequency transceiver, characterized in that: The device comprises a transceiver and a radio frequency front end according to any one of claims 1 to 8; wherein the transceiver is electrically connected to the first power amplifier module and the second power amplifier module; The transceiver is used to convert a baseband signal into a corresponding transmission signal, or to convert a received signal into a corresponding baseband signal.

10. An electronic device, characterized in that: The device comprises the radio frequency transceiver according to claim 9.

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