WO2018205564A1 - 一种射频前端模块及射频信号处理方法 - Google Patents

一种射频前端模块及射频信号处理方法 Download PDF

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Publication number
WO2018205564A1
WO2018205564A1 PCT/CN2017/113832 CN2017113832W WO2018205564A1 WO 2018205564 A1 WO2018205564 A1 WO 2018205564A1 CN 2017113832 W CN2017113832 W CN 2017113832W WO 2018205564 A1 WO2018205564 A1 WO 2018205564A1
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WIPO (PCT)
Prior art keywords
radio frequency
transmitted
signal
switch
filter
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Application number
PCT/CN2017/113832
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English (en)
French (fr)
Inventor
徐柏鸣
苏强
奕江涛
李平
Original Assignee
广州慧智微电子有限公司
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Application filed by 广州慧智微电子有限公司 filed Critical 广州慧智微电子有限公司
Publication of WO2018205564A1 publication Critical patent/WO2018205564A1/zh
Priority to US16/673,963 priority Critical patent/US20200067542A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers

Definitions

  • the invention relates to a wireless communication technology, in particular to a radio frequency front end module and a radio frequency signal processing method.
  • a front end module is a chip composed of a power amplifier and a multiplexer. If the received multi-frequency mobile signal is a radio frequency signal that needs to be filtered, it is also required to externally connect a power amplifier and a filter of the corresponding frequency band on the transmitting/receiving switch of the FEM. The volume of the entire FEM module is increased, the number of chips used is increased, and the cost is high.
  • the embodiments of the present invention are directed to a radio frequency front end module and a radio frequency signal processing method.
  • the embodiment of the present invention can ensure normal reception or transmission of a mobile signal, reduce the area and volume of the FEM, and reduce manufacturing costs.
  • the embodiment of the invention provides a radio frequency front end module, including:
  • the switch is configured to connect the amplifier and the antenna, and connect the amplifier and the filter when a radio frequency signal needs to be transmitted, and the radio frequency front end module needs to filter the transmitted radio frequency signal from the baseband chip Forming a first signal path in the RF front end module,
  • the first signal path is configured to perform amplification processing and filtering processing on the radio frequency signal transmitted in the first signal path;
  • the switch is further configured to connect the amplifier and the antenna to form a second signal path in the RF front-end module when the RF front-end module is not required to perform filtering processing on the transmitted RF signal.
  • the second signal path is used for amplifying the radio frequency signal transmitted in the second signal path.
  • the embodiment of the invention further provides a radio frequency signal processing method, including:
  • the amplifier and the antenna are connected through a switch, and the amplifier and the filter are connected through the switch to form a first signal path in the RF front-end module, based on the first signal.
  • the path is used for amplifying processing and filtering processing on the transmitted radio frequency signal to be transmitted;
  • the amplifier and the antenna are connected through a switch to form a second signal path in the RF front-end module, and the second signal path is used for transmitting the to-be-transmitted
  • the RF signal is amplified.
  • the embodiment of the invention can directly implement the radio frequency signal received or transmitted by the radio frequency front end module, and does not need to define a use environment compared with the related technology, and is simple and convenient to implement, has a wider application range, and can effectively save the number of amplifiers. Reduce the area and volume of the RF front-end module; while reducing manufacturing costs.
  • FIG. 1 is a schematic structural diagram of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of an implementation process of a radio frequency signal processing method according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a structure of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a structure of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a structure of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a structure of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a structure of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a structure of a radio frequency front end module according to an embodiment of the present invention.
  • connection should be understood broadly. For example, it may be an electrical connection or a communication between two components, which may be directly connected. It can also be indirectly connected through an intermediate medium, and the specific meaning of the above terms can be understood by a person of ordinary skill in the art according to the specific situation.
  • first ⁇ second ⁇ third according to the embodiment of the present invention is merely a similar object, and does not represent a specific ordering for an object. It can be understood that “first ⁇ second ⁇ ” The third "can be interchanged in a specific order or order, where permitted.” It is to be understood that the "first ⁇ second ⁇ third” distinguished objects may be interchanged as appropriate to enable the embodiments of the invention described herein to be carried out in a sequence other than those illustrated or described herein.
  • the duplexer which separates the two signals, that is, the transmitted and received signals, to ensure that both the receiving and transmitting devices can work normally at the same time. It is composed of two sets of band-stop filters of different frequencies to avoid transmission of the signal transmitted by the local machine. To the receiver.
  • the duplexer consists of two (transceiver) filters combined to share a common node (antenna), allowing the device to transmit (Tx) and receive (Rx) simultaneously.
  • Duplexers are commonly used in frequency division duplex (FDD) radio applications where one filter is a transmit filter and the other is a receive filter. The duplexer is designed to ensure that the passband of each filter does not load another filter.
  • FDD frequency division duplex
  • a multiplexer with a single input port and multiple output ports is a set of non-superimposed filters that are combined to ensure that they do not load each other and that the outputs are highly isolated.
  • Multiplex The device is composed of multiple (transceiver) filters combined to share a common node (antenna), allowing the device to transmit (Tx) and receive (Rx) simultaneously.
  • FIG. 1 is a schematic structural diagram of a radio frequency front end module according to an embodiment of the present invention.
  • the composition of the radio frequency front end module of the embodiment of the present invention as shown in FIG. 1 includes: an amplifier 101, a switch 102, and a filter 103.
  • FIG. 1 The connection of the radio frequency module to the antenna 104 is provided.
  • the switch 102 is configured to connect the amplifier 101 and the antenna 104 when the radio frequency front end module is required to perform filtering processing on the transmitted radio frequency signal, and connect the amplifier 101 and the filter 103 to form a first signal path in the radio frequency front end module, where the first signal path is used for performing amplification processing and filtering processing on the transmitted radio frequency signal;
  • the switch 102 is further configured to connect the amplifier 101 and the antenna 104 to form a second one of the RF front-end modules when the RF front-end module is not required to perform filtering processing on the transmitted RF signal. a signal path, wherein the second signal path is used to amplify the transmitted radio frequency signal.
  • the amplifier 101 of the first signal path is specifically used to: The radio frequency signal is amplified, and the amplified radio frequency signal to be transmitted is sent to the filter 103 of the first signal path;
  • the filter 103 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; and send the filtered radio frequency signal to be transmitted to the antenna 104;
  • the antenna 104 transmits the radio frequency signal to be transmitted;
  • the first end of the amplifier 101 is connected to a first access port of the switch 102;
  • the second access port of the switch 102 is connected to the third access port of the switch 102;
  • the fourth access port of the switch 102 is connected to the first end of the antenna 104;
  • a first end of the filter 103 is connected to a fifth access port of the switch 102, and a second end of the filter 103 is connected to a sixth access port of the switch 102, between the ports Connecting or disconnecting through the switch;
  • the switch may be controlled by a high level signal or may be controlled to be disconnected by a low level signal;
  • the second end of the amplifier 101 receives a radio frequency signal
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals;
  • the amplifier 101 of the second signal path is specifically configured to: perform amplification processing on the radio frequency signal to be transmitted; and send the amplified radio frequency signal to be transmitted to the antenna 104;
  • the antenna 104 transmits the radio frequency signal to be transmitted.
  • the amplifier 101 in the second signal path is specifically used to: the radio frequency to be transmitted The signal is subjected to amplification processing; and the amplified radio frequency signal to be transmitted is transmitted to the antenna 104; and the radio frequency signal to be transmitted is transmitted via the antenna 104;
  • the first end of the amplifier 101 is connected to the first access port of the switch 102 (the first access port and the access ports referred to hereinafter are not identified in the drawings, but according to the following The connection relationship of related modules can be understood as corresponding locations in the drawings);
  • the second access port of the switch 102 is connected to the third access port of the switch 102;
  • the fourth access port of the switch 102 is connected to the first end of the antenna 104;
  • the second end of the amplifier 101 receives a radio frequency signal
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals.
  • the switches of the working states are respectively corresponding to each other by the switching of the switches.
  • the frequency band filters the radio frequency signal to be transmitted in the corresponding frequency band;
  • the switch 102 is further configured to connect the amplifier 101 and the antenna 104 when the RF front-end module is required to perform filtering processing on the transmitted radio frequency signal to be transmitted, and connect the corresponding frequency band according to the target communication frequency band.
  • the filter and the amplifier 101 are configured to form the first signal path in the radio frequency front end module for the target communication frequency band, and are used for amplifying the radio frequency signal to be transmitted in the target communication frequency band to be transmitted. And filtering processing;
  • the switch 102 is further configured to connect the amplifier 101 and the antenna 104 to form the radio frequency front end module for the radio frequency front end module when the radio frequency front end module is not required to perform filtering processing on the transmitted radio frequency signal.
  • the second signal path of the target communication frequency band is used for amplifying the radio frequency signal of the target communication frequency band that is transmitted.
  • the switch 102 includes a first sub-switch and a second sub-switch (the sub-switch is not identified in FIG. 1 and subsequent drawings, but according to the description of the connection relationship between the sub-switch and other modules, Easy to understand the drawings);
  • the first end of the first sub-switch is connected to the first end of the amplifier 101, and the first end of the second sub-switch is connected to the first end of the antenna 104;
  • the first sub-switch is configured to connect the second end of the first sub-switch to the filter corresponding to the target communication frequency band when the radio frequency front-end module is required to perform filtering processing on the transmitted radio frequency signal First end
  • the second sub-switch is configured to connect the second end of the second sub-switch to the filter corresponding to the target communication frequency band when the radio frequency front-end module is required to perform filtering processing on the transmitted radio frequency signal a second end, to form the first signal path corresponding to the target communication frequency band in the radio frequency front end module;
  • the first sub-switch is configured to connect the second end of the first sub-switch and the second end of the second sub-switch when the radio frequency front-end module does not need to perform filtering processing on the transmitted radio frequency signal, Forming a second signal path in the RF front end module that is directly connected to the amplifier 101 and the antenna 104.
  • connection relationship change of the first sub-switch and the second sub-switch may be implemented by a controller issuing a control command to the switch 104, including but not limited to a high level signal and a low power
  • the controller may be located inside the radio front end module or may be implemented by a baseband chip in a base station or a terminal.
  • FIG. 2 is a schematic flowchart of an implementation of a radio frequency signal processing method according to an embodiment of the present invention. As shown in FIG. 2, an implementation process of a radio frequency signal processing method according to an embodiment of the present invention includes the following steps:
  • Step 201 Determine whether it is necessary to perform filtering processing on the radio frequency signal to be transmitted, if yes, go to step 202, otherwise, go to step 203;
  • Step 202 connecting the amplifier and the antenna through a switch, and connecting the amplifier and the filter through the switch to form a first signal path in the radio frequency front end module;
  • Step 203 Connect the amplifier and the antenna through the switch to form a second signal path in the radio frequency front end module.
  • the first signal path is used to perform amplification processing and filtering processing on the transmitted radio frequency signal, including:
  • the amplifier in the first signal path When processing the signal to be transmitted, the amplifier in the first signal path performs amplification processing on the radio frequency signal to be transmitted; and transmits the amplified radio frequency signal to be transmitted to the first signal path Filter
  • the filter in the first signal path performs filtering processing on the amplified radio frequency signal to be transmitted; and sends the filtered radio frequency signal to be transmitted to the antenna; via the antenna Transmitting the radio frequency signal to be transmitted.
  • the second signal path may also be used to perform only amplification processing on the transmitted radio frequency signal, including:
  • FIG. 3 is a schematic structural diagram of a radio frequency front-end module according to an embodiment of the present invention, and by using the structure shown in FIG. 3, processing of any one of a 2G signal, a 3G signal, a 4G signal, and a 5G signal to be transmitted may be implemented, such as As shown in FIG. 3, the component structure of the radio frequency front end module in the embodiment of the present invention includes:
  • Amplifier 301 switch 302 and filter 303; in Figure 3, the connection of the radio frequency module to antenna 304 is also shown.
  • the switch 302 is configured to connect the amplifier 301 and the antenna 304, and connect the amplifier 301 and the filter 303 to form the radio frequency front end module when filtering the transmitted radio frequency signal.
  • a first signal path wherein the first signal path is used for performing amplification processing and filtering processing on the radio frequency signal to be transmitted;
  • the switch 302 is further configured to: when it is not required to perform filtering processing on the transmitted radio frequency signal,
  • the amplifier 301 and the antenna 304 are connected to form a second signal path in the radio frequency front end module, and the second signal path is used for amplifying processing the radio frequency signal to be transmitted.
  • the amplifier 301 of the first signal path is specifically used for: the radio frequency to be transmitted.
  • the signal is amplified; and the amplified radio frequency signal to be transmitted is sent to the filter 303 of the first signal path;
  • the filter 303 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; and send the filtered radio frequency signal to be transmitted to the antenna 304;
  • the antenna 304 transmits the radio frequency signal to be transmitted;
  • the first end of the amplifier 301 is coupled to the first access port of the switch 302;
  • the second access port of the switch 302 is connected to the third access port of the switch 302;
  • the fourth access port of the switch 302 is connected to the first end of the antenna 304;
  • the first end of the filter 303 is connected to the fifth access port of the switch 302, and the second end of the filter 303 is connected to the sixth access port of the switch 302, between the ports Connecting or disconnecting through the switch;
  • the switch may be connected by receiving a high level control signal, or may be disconnected by receiving a low level control signal;
  • the second end of the amplifier 301 receives a radio frequency signal
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals;
  • the amplifier 301 of the second signal path is specifically configured to: perform amplification processing on the radio frequency signal to be transmitted; and send the amplified radio frequency signal to be transmitted to the antenna 304;
  • the antenna 304 transmits the radio frequency signal to be transmitted.
  • the amplifier 301 in the second signal path is specifically used to: the radio frequency to be transmitted Transmitting the signal to the antenna 304; transmitting the radio frequency signal to be transmitted via the antenna 304;
  • the first end of the amplifier 301 is coupled to the first access port of the switch 302;
  • the second access port of the switch 302 is connected to the third access port of the switch 302;
  • the fourth access port of the switch 302 is connected to the first end of the antenna 304;
  • the second end of the amplifier 301 receives a radio frequency signal
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G radio frequency signals.
  • the switches corresponding to the different frequency bands are to be transmitted in the corresponding frequency bands by the switching of the switches.
  • the RF signal is filtered;
  • the switch 302 is further configured to connect the amplifier 301 and the antenna 304 when the radio frequency front end module is required to perform filtering processing on the transmitted radio frequency signal, and connect the filter corresponding to the frequency band according to the target communication frequency band.
  • the amplifier 301 is configured to form the first signal path of the radio frequency front end module for the target communication frequency band, and perform amplification processing and filtering processing on the radio frequency signal of the target communication frequency band that is transmitted;
  • the switch 302 is further configured to connect the amplifier 301 and the antenna 304 to form the radio frequency front end module for the radio frequency front end module when the radio frequency front end module is not required to perform filtering processing on the transmitted radio frequency signal.
  • the second signal path of the target communication frequency band is used for amplifying the radio frequency signal of the target communication frequency band that is transmitted.
  • the switch 302 includes a first sub-switch and a second sub-switch;
  • the first sub-switch and the second sub-switch may be implemented by the first and second;
  • the first end of the first sub-switch is connected to the first end of the amplifier 301, and the first end of the second sub-switch is connected to the first end of the antenna 304;
  • the first sub-switch is configured to connect the second end of the first sub-switch to the filter corresponding to the target communication frequency band when the radio frequency front-end module is required to perform filtering processing on the transmitted radio frequency signal First end
  • the second sub-switch is configured to enter the radio frequency signal of the radio frequency front end module In the row filtering process, connecting the second end of the second sub-switch to the second end of the filter corresponding to the target communication band to form the corresponding to the target communication band in the radio front-end module First signal path;
  • the first sub-switch is configured to connect the second end of the first sub-switch and the second end of the second sub-switch to form the radio frequency when the radio frequency signal of the transmission is not required to be filtered.
  • a second signal path of the amplifier 301 and the antenna 304 is directly connected to the front end module.
  • connection relationship change between the first sub-switch and the second sub-switch may be implemented by a controller issuing a control command to the switch 304, where the control command includes but is not limited to a high level signal and a low level signal.
  • the controller may be located inside the radio front end module or may be implemented by a baseband chip in a base station or a terminal.
  • FIG. 4 is a schematic structural diagram of a radio frequency front-end module according to an embodiment of the present invention.
  • processing of any one of a 2G signal, a 3G signal, a 4G signal, and a 5G signal may be implemented, as shown in FIG.
  • the composition of the RF front-end module in the embodiment of the present invention includes:
  • Amplifier 401 first switch 402, second switch 405, and filter 403; in FIG. 4, the connection of the radio frequency module to antenna 404 is also shown.
  • the only difference between the first switch 402 and the second switch 405 in this embodiment is that the first switch 402 and the second switch 405 are respectively implemented by two single-pole multi-throw switches, and the RF front-end module in the embodiment.
  • the switch 302 is composed of a double-pole multi-throw switch, so the action and processing of each component in the embodiment will not be described again.
  • composition of the RF front-end module in the embodiment of the present invention is as shown in FIG. 5, and the structure can support the communication modes of 2G, 3G, 4G, and 5G at the same time.
  • the composition of the RF front-end module in the embodiment of the present invention includes:
  • Amplifier 501 switch 502, first filter 503 and second filter 505; in Figure 5, the connection of the radio frequency module to antenna 504 is also shown.
  • the first filter 503 and the second filter 505 are respectively configured to filter the radio frequency signals to be transmitted that need to be filtered in respective frequency bands;
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals;
  • the first filter 503 and the second filter 505 may perform different combinations of modes according to different frequencies of the signals to be processed;
  • the switch 502 is configured to connect the amplifier 501 and the antenna 504, and connect the amplifier 501 and the first filter 503 when the filtering of the transmitted radio frequency signal is required, or connect the
  • the amplifier 501 and the second filter 505 are configured to form a first signal path in the radio frequency front end module, where the first signal path is used for performing amplification processing and filtering processing on the transmitted radio frequency signal;
  • the switch 502 is further configured to connect the amplifier 501 and the antenna 504 to form a second signal path in the radio frequency front end module when the radio frequency signal of the transmission is not required to be filtered.
  • the second signal path is used to amplify the transmitted radio frequency signal.
  • the amplifier 501 of the first signal path is specifically used for: 2G to be transmitted. Or the 3G signal is subjected to amplification processing; and the amplified radio frequency signal to be transmitted is transmitted to the first filter 503 of the first signal path, or is sent to the first signal path a second filter 505;
  • the first filter 503 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; and send the filtered radio frequency signal to be transmitted to the antenna 504. Transmitting, by the antenna 504, the radio frequency signal to be transmitted;
  • the second filter 505 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; and send the filtered radio frequency signal to be transmitted to the antenna 504. Transmitting, by the antenna 504, the radio frequency signal to be transmitted;
  • the first end of the amplifier 501 is connected to a first access port of the switch 502;
  • the second access port of the switch 502 is connected to the third access port of the switch 502;
  • the fourth access port of the switch 502 is connected to the first end of the antenna 504;
  • the first end of the first filter 503 is connected to the fifth access port of the switch 502, and the second end of the first filter 503 is connected to the sixth access port of the switch 502;
  • the first end of the second filter 505 is connected to the seventh access port of the switch 502, and the second end of the second filter 505 is connected to the eighth access port of the switch 502;
  • the amplifier 501 of the second signal path is specifically configured to: perform amplification processing on the radio frequency signal to be transmitted; and send the amplified radio frequency signal to be transmitted to the antenna 504;
  • the antenna 504 transmits the radio frequency signal to be transmitted.
  • the amplifier 501 in the second signal path is specifically used to: the radio frequency to be transmitted
  • the signal is amplified, and the amplified radio frequency signal to be transmitted is sent to the antenna 504; the radio frequency signal to be transmitted is transmitted via the antenna 504;
  • the first end of the amplifier 501 is connected to a first access port of the switch 502;
  • the second access port of the switch 502 is connected to the third access port of the switch 502;
  • the fourth access port of the switch 502 is connected to the first end of the antenna 504;
  • the switch 502 includes a first sub-switch and a second sub-switch;
  • the first end of the first sub-switch is connected to the first end of the amplifier 501, and the first end of the second sub-switch is connected to the first end of the antenna 504;
  • the first sub-switch is configured to connect the second end of the first sub-switch to the filter corresponding to the target communication frequency band when the radio frequency front-end module is required to perform filtering processing on the transmitted radio frequency signal First end
  • the second sub-switch is configured to connect the second end of the second sub-switch to the filter corresponding to the target communication frequency band when the radio frequency front-end module is required to perform filtering processing on the transmitted radio frequency signal a second end, to form the first signal path corresponding to the target communication frequency band in the radio frequency front end module;
  • the first sub-switch is configured to connect the second end of the first sub-switch and the second end of the second sub-switch when the radio frequency front-end module does not need to perform filtering processing on the transmitted radio frequency signal, Shape A second signal path directly connected to the amplifier 501 and the antenna 504 in the RF front end module.
  • the change of the connection relationship between the first sub-switch and the second sub-switch may be implemented by a controller issuing a control command to the switch 504, where the control command includes but is not limited to a high level signal and a low level signal.
  • the controller may be located inside the radio front end module or may be implemented by a baseband chip in a base station or a terminal.
  • the composition of the RF front-end module in the embodiment of the present invention is as shown in FIG. 6, and the structure can support the communication modes of 2G, 3G, 4G, and 5G at the same time.
  • the components of the RF front-end module in the embodiment of the present invention include: an amplifier 601, a switch 602, a first filter 603, a second filter 605, and a third filter 606.
  • the RF module and the antenna are also shown. 604 connection.
  • the first filter 603, the second filter 605, and the third filter 606 are respectively configured to perform filtering processing on radio frequency signals that need to be filtered in respective frequency bands;
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals;
  • the first filter 603, the second filter 605, and the third filter 606 may perform different combinations of different systems according to different frequencies of the signals to be processed;
  • the switch 602 is configured to connect the amplifier 601 and the antenna 604, and connect the amplifier 601 and the first filter 603 when the filtering of the transmitted radio frequency signal is required, or connect the An amplifier 601 and the second filter 605, or the amplifier 601 and the third filter 606 are connected to form a first signal path in the radio frequency front end module, the first signal path is used for
  • the transmitted 2G, 3G, and 4G signals are subjected to amplification processing and filtering processing;
  • the switch 602 is further configured to connect the amplifier 601 and the antenna 604 to form a second signal in the radio frequency front end module when filtering the transmitted 2G, 3G or 4G signals is not required.
  • the path, the second signal path is used for amplifying the transmitted radio frequency signal.
  • the amplifier 601 of the first signal path Specifically, the 2G, 3G, or 4G signals to be transmitted are subjected to amplification processing; and the amplified 2G signals to be transmitted are sent to the first filter 603 of the first signal path, or The amplified 3G signal to be transmitted is sent to the first The second filter 605 of the signal path, or the amplified 4G signal to be transmitted is sent to the third filter 606 of the first signal path;
  • the first filter 603 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; the radio frequency signal includes but is not limited to a 2G signal of different frequencies; Transmitting the filtered radio frequency signal to be transmitted to the antenna 604; transmitting the radio frequency signal to be transmitted via the antenna 604;
  • the second filter 605 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; the radio frequency signal includes but is not limited to a 3G signal of different frequencies; Transmitting the filtered radio frequency signal to be transmitted to the antenna 604; transmitting the radio frequency signal to be transmitted via the antenna 604;
  • the third filter 606 of the first signal path is specifically configured to: perform filtering processing on the amplified radio frequency signal to be transmitted; the radio frequency signal includes but is not limited to a 4G signal of different frequencies; Transmitting the filtered radio frequency signal to be transmitted to the antenna 604; transmitting the radio frequency signal to be transmitted via the antenna 604;
  • the first end of the amplifier 601 is coupled to the first access port of the switch 602;
  • the second access port of the switch 602 is connected to the third access port of the switch 602;
  • the fourth access port of the switch 602 is connected to the first end of the antenna 604;
  • the first end of the first filter 603 is connected to the fifth access port of the switch 602, and the second end of the first filter 603 is connected to the sixth access port of the switch 602;
  • the first end of the second filter 605 is connected to the seventh access port of the switch 602, and the second end of the second filter 605 is connected to the eighth access port of the switch 602;
  • the first end of the third filter 606 is connected to the ninth access port of the switch 602, and the second end of the third filter 606 is connected to the tenth access port of the switch 602;
  • the amplifier 601 of the second signal path is specifically configured to: perform amplification processing on the 2G, 3G, and 4G signals to be transmitted; and send the amplified radio frequency signal to be transmitted. To the antenna 604; transmitting the 2G, 3G or 4G signal to be transmitted via the antenna 604.
  • the amplifier 601 in the second signal path is specifically used. And: performing amplification processing on the 2G, 3G or 4G signal to be transmitted; and transmitting the amplified 2G, 3G or 4G signal to be transmitted to the antenna 604; transmitting the to-be-processed via the antenna 604 2G, 3G or 4G signals transmitted;
  • the first end of the amplifier 601 is coupled to the first access port of the switch 602;
  • the second access port of the switch 602 is connected to the third access port of the switch 602;
  • the fourth access port of the switch 602 is connected to the first end of the antenna 604;
  • the switch 602 includes a first sub-switch and a second sub-switch;
  • the first end of the first sub-switch is connected to the first end of the amplifier 601, and the first end of the second sub-switch is connected to the first end of the antenna 604;
  • the first sub-switch is configured to connect the second end of the first sub-switch to a target communication frequency band when the RF front-end module is required to perform filtering processing on the transmitted 2G, 3G or 4G signal The first end of the filter;
  • the second sub-switch is configured to connect the second end of the second sub-switch to the filter corresponding to the target communication frequency band when the radio frequency front-end module is required to perform filtering processing on the transmitted radio frequency signal a second end, to form a first signal path corresponding to the target communication frequency band in the radio frequency front end module;
  • the first sub-switch is configured to connect the second end of the first sub-switch and the second sub-switch when the RF front-end module does not need to perform filtering processing on the transmitted 2G, 3G or 4G signal a second end to form a second signal path in the RF front end module that is directly connected to the amplifier 601 and the antenna 604.
  • the change of the connection relationship between the first sub-switch and the second sub-switch may be implemented by a controller issuing a control command to the switch 604, where the control command includes but is not limited to a high level signal and The low level signal, the controller may be located inside the radio front end module, or may be implemented by a baseband chip in a base station or a terminal.
  • composition of the RF front-end module in the embodiment of the present invention is as shown in FIG. 7, and the structure can support the communication modes of 2G, 3G, 4G, and 5G at the same time.
  • the composition of the RF front-end module in the embodiment of the present invention includes:
  • the first filter 703, the second filter 705, and the third filter 706 are respectively configured to perform filtering processing on radio frequency signals that need to be filtered in respective frequency bands;
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals of different frequencies;
  • the first filter 703, the second filter 705, and the third filter 706 may perform different combinations of different modes according to different frequencies of the signals to be processed;
  • the switch 702 is configured to connect the first filter 703 and the baseband chip, or the second filter 705 and the baseband chip, or, when the RF signal received by the antenna 704 needs to be filtered. a third filter 706 and a baseband chip to form a third signal path in the RF front end module, the third signal path for filtering the 2G, 3G or 4G signal received by the antenna 704, and The filtered RF signal is sent to the baseband chip;
  • the switch 702 is further configured to connect the baseband chip and the antenna 704 to form a fourth signal in the radio frequency front end module when the 2G, 3G or 4G signal received by the antenna 704 is not required to be filtered. And a fourth signal path for transmitting the radio frequency signal received by the antenna 704 to the baseband chip.
  • the first filter 703 of the third signal path is specifically configured to: perform filtering processing on the radio frequency signal received by the antenna 704 that needs to be filtered; the radio frequency signal includes but is not limited to a 2G signal of different frequencies; Transmitting the filtered RF signal to a baseband chip;
  • the second filter 705 of the third signal path is specifically configured to: perform filtering processing on the radio frequency signal received by the antenna 704 that needs to be filtered; the radio frequency signal includes but is not limited to a 3G signal of different frequencies; Transmitting the filtered RF signal to a baseband chip;
  • the third filter 706 of the third signal path is specifically configured to: perform filtering processing on the radio frequency signal received by the antenna 704 that needs to be filtered; the radio frequency signal includes but is not limited to a 4G signal of different frequencies; Transmitting the filtered RF signal to a baseband chip;
  • the baseband chip is coupled to a first access port of the switch 702;
  • the second access port of the switch 702 is connected to the third access port of the switch 702;
  • the fourth access port of the switch 702 is connected to the first end of the antenna 704;
  • the first end of the first filter 703 is connected to the tenth access port of the switch 702, and the second end of the first filter 703 is connected to the fifth access port of the switch 702;
  • the first end of the second filter 705 is connected to the ninth access port of the switch 702, and the second end of the second filter 705 is connected to the sixth access port of the switch 702;
  • the first end of the third filter 706 is connected to the eighth access port of the switch 702, and the second end of the third filter 706 is connected to the seventh access port of the switch 702;
  • the switch 702 includes a first sub-switch and a second sub-switch;
  • the first sub-switch further includes an eleventh access port, a twelfth access port, a thirteenth access port, a fourteenth access port, a fifteenth access port, and a sixteenth access. Port, seventeenth access port;
  • the baseband chip is connected to the eleventh access port, the eleventh access port is connected to the tenth access port, and the first filter 703 passes the filtered RF signal through the The tenth access port and the eleventh access port are transmitted to the baseband chip;
  • the baseband chip is connected to the thirteenth access port, the thirteenth access port is connected to the ninth access port, and the second filter 705 passes the filtered RF signal through the The ninth access port and the thirteenth access port are transmitted to the baseband chip;
  • the baseband chip is connected to the fifteenth access port, the fifteenth access port is connected to the eighth access port, and the first filter 703 passes the filtered RF signal through the The eighth access port and the fifteenth access port are transmitted to the baseband chip;
  • the baseband chip When the fourth signal path is formed, the baseband chip is connected to the first access port, and the first access port Connecting the second access port, the second access port is connected to the third access port, and the third access port is connected to the fourth access port, and the radio frequency signal received by the antenna 704 that does not need to be filtered is passed through the fourth signal path. Transfer to the baseband chip;
  • the structure described in FIG. 7 can also transmit the radio frequency signal to be transmitted that needs to be filtered to the antenna 704, and is transmitted by the antenna 704;
  • the amplifier 701 is connected to the first access port of the switch 702, the first access port is connected to the seventeenth access port, and the seventeenth access port is connected to the twelfth access port.
  • the sixteenth access port is connected to the eighth access port, and the radio frequency signal to be transmitted may be transmitted to the twelfth access port and the tenth access port according to different types of radio frequency signals to be transmitted.
  • the ingress port is transmitted to the third filter 706, and after being processed by each filter, the filtered RF signal is transmitted by the antenna 704.
  • FIG. 8 is a schematic structural diagram of a radio frequency front end module according to an embodiment of the present invention.
  • FIG. 8 further illustrates a connection between the radio frequency module and the antenna 704.
  • the first duplexer 803 is used instead of the first filter 703
  • the second duplexer 805 is used instead of the second filter 705, the third duplexer.
  • the radio frequency signals include, but are not limited to, 2G, 3G, 4G, and 5G signals;
  • the actual use page can use at least one duplexer or multiplexer to replace one of the filters in the embodiment to avoid signal interference, and therefore the functions and processes of the various components in the embodiment are not described again.
  • the embodiment of the present invention implements the processing of the radio frequency signal transmitted in the radio frequency front end module through the connection control of the switch, and overcomes the defects in the related art that the amplifier needs to be added to the type of the radio frequency signal, thereby effectively reducing the area of the radio frequency front end module.
  • the connection relationship between the components in the RF front-end module is simplified, and the embodiment of the present invention does not need to limit the use environment, and is simple and convenient to implement, and has a wider application range.
  • the radio frequency front-end module includes: an amplifier, a switch and a filter; and a switch for connecting when the radio frequency signal needs to be transmitted and the RF front-end module needs to filter the transmitted radio frequency signal from the baseband chip.
  • the filter is further configured to connect the amplifier and the antenna to form a second signal in the RF front-end module when the RF front-end module is not required to perform filtering processing on the transmitted RF signal.
  • the path is used for amplifying the radio frequency signal transmitted in the second signal path.
  • the invention also provides a radio frequency signal processing method.

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Abstract

本发明提供了一种射频前端模块，包括：放大器、开关和滤波器；开关，用于在需要发射射频信号、且需要射频前端模块对来自基带芯片的所传输的射频信号进行滤波处理时，连接放大器和天线，并连接所述放大器和所述滤波器，以形成所述射频前端模块中的第一信号通路，用于对在所述第一信号通路中传输的所述射频信号进行放大处理和滤波处理；所述开关，还用于在不需要所述射频前端模块对所传输的射频信号进行滤波处理时，连接所述放大器和所述天线，以形成所述射频前端模块中的第二信号通路，用于对第二信号通路中传输的射频信号进行放大处理。本发明还提供了一种射频信号处理方法。

Description

一种射频前端模块及射频信号处理方法
相关申请的交叉引用
本申请基于申请号为201710327263.7、申请日为2017年5月10日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的内容在此引入本申请作为参考。
技术领域
本发明涉及无线通信技术，尤其是一种射频前端模块及射频信号处理方法。
背景技术
相关技术中，射频前端模块(FEM，Front-end module)是由功率放大器以及多路开关组成的芯片。若接收的多频移动信号是需要经过滤波处理的射频信号，还需要在FEM的发射/接收开关上外接相应频段的功率放大器和滤波器来实现。造成整个FEM模块面积体积增大，使用芯片数量增多，成本较高。
发明内容
有鉴于此，本发明实施例期望提供一种射频前端模块及射频信号处理方法，通过本发明实施例能够保证移动信号的正常接收或发射，并减小FEM的面积与体积，降低制造成本。
为达到上述目的，本发明实施例的技术方案是这样实现的：
本发明实施例提供了一种射频前端模块，包括：
放大器、开关和滤波器；
所述开关，用于在需要发射射频信号、且需要所述射频前端模块对来自基带芯片的所传输的射频信号进行滤波处理时，连接所述放大器和天线，并连接所述放大器和所述滤波器，以形成所述射频前端模块中的第一信号通路，所述 第一信号通路用于对在所述第一信号通路中传输的所述射频信号进行放大处理和滤波处理；
所述开关，还用于在不需要所述射频前端模块对所传输的射频信号进行滤波处理时，连接所述放大器和所述天线，以形成所述射频前端模块中的第二信号通路，所述第二信号通路用于对所述第二信号通路中传输的射频信号进行放大处理。
本发明实施例还提供了一种射频信号处理方法，包括：
在需要射频前端模块对传输的待发射的射频信号进行滤波处理时，通过开关连接放大器和天线，并通过开关连接放大器和滤波器，以形成射频前端模块中的第一信号通路，基于第一信号通路用于对传输的待发射的射频信号进行放大处理和滤波处理；
在不需要射频前端模块对传输的射频信号进行滤波处理时，通过开关连接所述放大器和天线，以形成射频前端模块中的第二信号通路，基于第二信号通路用于对传输的待发射的射频信号进行放大处理。
本发明实施例能够直接实现由射频前端模块处理接收或发射的射频信号，相较于相关技术，不需要限定使用环境，实现简单方便，适用范围更广，由于节省了放大器的数量，从而能够有效减小射频前端模块的面积与体积；同时减少了制造成本。
附图说明
图1为本发明实施例射频前端模块的组成结构示意图；
图2为本发明实施例射频信号处理方法的实现流程示意图；
图3为本发明实施例中射频前端模块的组成结构示意图；
图4为本发明实施例中射频前端模块的组成结构示意图；
图5为本发明实施例中射频前端模块的组成结构示意图；
图6为本发明实施例中射频前端模块的组成结构示意图；
图7为本发明实施例中射频前端模块的组成结构示意图；
图8为本发明实施例中射频前端模块的组成结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明。
在本发明实施例记载中，需要说明的是，除非另有说明和限定，术语“连接”应做广义理解，例如，可以是电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。
需要说明的是，本发明实施例所涉及的术语“第一\第二\第三”仅仅是是区别类似的对象，不代表针对对象的特定排序，可以理解地，“第一\第二\第三”在允许的情况下可以互换特定的顺序或先后次序。应该理解“第一\第二\第三”区分的对象在适当情况下可以互换，以使这里描述的本发明的实施例能够以除了在这里图示或描述的那些以外的顺序实施。
对本发明进行进一步详细说明之前，对本发明实施例中涉及的名词和术语进行说明，本发明实施例中涉及的名词和术语适用于如下的解释。
1)滤波器，用于对所述射频前端中传输的射频信号进行滤波处理。
2)放大器，用于对所述射频前端中传输的所述射频信号进行放大处理。
3)双工器，将两路信号即发射和接收信号相隔离，保证接收和发射都能同时正常工作的器件，它是由两组不同频率的带阻滤波器组成，避免本机发射信号传输到接收机。双工器由两个(收发)滤波器合并组成，共用一个公共节点(天线)，允许设备同时发射(Tx)和接收(Rx)。双工器通常用于频分双工(FDD)无线电应用，其中一个滤波器是发射滤波器，另一个是接收滤波器。双工器的设计能够确保每个滤波器的通带不会加载另一个滤波器。
4)多工器，有单一输入端口和多个输出端口，多工器是一组非叠加的滤波器，这些滤波器在组合方式上确保不相互加载，并且输出之间高度隔离。多工 器由多个(收发)滤波器合并组成，共用一个公共节点(天线)，允许设备同时发射(Tx)和接收(Rx)。
图1为本发明实施例射频前端模块的组成结构示意图，如图1所示的本发明实施例射频前端模块的组成结构包括：放大器101、开关102和滤波器103；在图1中，示出了射频模块与天线104的连接。
所述开关102，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述放大器101和天线104，并连接所述放大器101和所述滤波器103，以形成所述射频前端模块中的第一信号通路，所述第一信号通路用于对传输的所述射频信号进行放大处理和滤波处理；
所述开关102，还用于在不需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述放大器101和所述天线104，以形成所述射频前端模块中的第二信号通路，所述第二信号通路用于对传输的射频信号进行放大处理。
在一些实施例中，在对待发射的射频信号进行放大处理的过程中，当所述待发射的射频信号需要进行滤波处理时，所述第一信号通路的所述放大器101具体用于：对待发射的射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述第一信号通路的所述滤波器103；
所述第一信号通路的所述滤波器103具体用于：对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至天线104；经由所述天线104发射所述待发射的射频信号；
在一些实施例中，所述放大器101第一端连接至所述开关102的第一接入端口；
所述开关102的第二接入端口连接至所述开关102的第三接入端口；
所述开关102的第四接入端口连接至所述天线104的第一端；
所述滤波器103的第一端连接至所述开关102的第五接入端口，所述滤波器103的第二端连接至所述开关102的第六接入端口，各所述端口之间通过所述开关实现连接或断开；
在一些实施例中，所述开关可以由高电平信号控制连接，也可以由低电平信号控制断开；
所述放大器101的第二端接收射频信号；
所述射频信号包括但不限于：2G、3G、4G和5G信号；
所述第二信号通路的所述放大器101具体用于：对通过待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线104；经由所述天线104发射所述待发射的射频信号。
在对待发射的射频信号进行放大处理的过程中，当所述待发射的射频信号不需要进行滤波处理时，所述第二信号通路中的所述放大器101具体用于：对待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线104；经由所述天线104发射所述待发射的射频信号；
需要指出，所述放大器101第一端连接至所述开关102的第一接入端口(第一接入端口以及下文中所涉及的接入端口在附图中均未标识，但是根据下文中与相关模块的连接关系可以理解其在附图中对应的具***置)；
所述开关102的第二接入端口连接至所述开关102的第三接入端口；
所述开关102的第四接入端口连接至所述天线104的第一端；
各所述端口之间通过所述开关实现连接或断开；
所述放大器101的第二端接收射频信号；
所述射频信号包括但不限于：2G、3G、4G和5G信号。
在一些实施例中，所述滤波器数量为多个并对应不同频段且至少有一个所述滤波器处于工作状态时，通过所述开关的切换，各处于工作状态的滤波器在各自所对应的频段对相应频段的待发射的射频信号进行滤波处理；
所述开关102，还用于在需要所述射频前端模块对所传输的待发射的射频信号进行滤波处理时，连接所述放大器101和所述天线104，并根据目标通信频段连接相应频段的所述滤波器和所述放大器101，以形成所述射频前端模块中针对所述目标通信频段的所述第一信号通路，用于对传输的所述目标通信频段的待发射的射频信号进行放大处理和滤波处理；
所述开关102，还用于在不需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述放大器101和所述天线104，以形成所述射频前端模块中针对所述目标通信频段的第二信号通路，用于对传输的所述目标通信频段的射频信号进行放大处理。
在一些实施例中，所述开关102，包括第一子开关和第二子开关(子开关子图1以及后续附图中均未标识，但是根据子开关与其他模块的连接关系的记载，可以轻易理解附图)；
所述第一子开关的第一端连接至所述放大器101的第一端，所述第二子开关的第一端连接至所述天线104的第一端；
所述第一子开关，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述第一子开关的第二端与目标通信频段相应的所述滤波器的第一端；
所述第二子开关，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述第二子开关的第二端与目标通信频段相应的所述滤波器的第二端，以形成所述射频前端模块中的与所述目标通信频段对应的所述第一信号通路；
所述第一子开关，用于在不需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接第一子开关的第二端与所述第二子开关的第二端，以形成所述射频前端模块中的直连所述放大器101和所述天线104的第二信号通路。
在一些实施例中，所述第一子开关和第二子开关的连接关系改变可以由控制器向所述开关104发出控制命令实现，所述控制命令包括但不限于高电平信号和低电平信号，所述控制器既可以位于所述射频前端模块内部，也可以由基站或终端中的基带芯片实现。
图2为本发明实施例射频信号处理方法的实现流程示意图，如图2所示，本发明实施例射频信号处理方法的实现流程包括以下步骤：
步骤201：判断是否需要对待发射的射频信号进行滤波处理，如果是，执行步骤202，否则，执行步骤203；
步骤202：通过开关连接所述放大器和天线，并通过所述开关连接所述放大器和所述滤波器，以形成所述射频前端模块中的第一信号通路；
步骤203：通过所述开关连接所述放大器和所述天线，以形成所述射频前端模块中的第二信号通路。
在一些实施例中，利用图1中所示出的结构，基于所述第一信号通路用于对传输的射频信号进行放大处理和滤波处理，包括：
当处理待发射信号时，所述第一信号通路中的所述放大器对待发射的射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述第一信号通路的所述滤波器；
所述第一信号通路中的所述滤波器对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至所述天线；经由所述天线发射所述待发射的射频信号。
在一些实施例中，还可以基于第二信号通路用于对传输的射频信号仅进行放大处理，包括：
利用所述第二信号通路中的所述放大器对待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线；经由所述天线发射所述待发射的射频信号。
图3为本发明实施例中射频前端模块的组成结构示意图，通过图3所示的结构，可以实现对2G信号、3G信号、4G信号和5G信号中任意一种待发射的信号的处理，如图3所示，本发明实施例中射频前端模块的组成结构包括：
放大器301、开关302和滤波器303；在图3中，还示出了射频模块与天线304的连接。
所述开关302，用于在需要对所述传输的射频信号进行滤波处理时，连接所述放大器301和天线304，并连接所述放大器301和所述滤波器303，以形成所述射频前端模块中的第一信号通路，所述第一信号通路用于对待发射的所述射频信号进行放大处理和滤波处理；
所述开关302，还用于在不需要对所述传输的射频信号进行滤波处理时， 连接所述放大器301和所述天线304，以形成所述射频前端模块中的第二信号通路，所述第二信号通路用于对待发射的射频信号进行放大处理。
实际应用中，在对待发射的射频信号进行放大处理的过程中，当所述待发射的射频信号需要进行滤波处理时，所述第一信号通路的所述放大器301具体用于：对待发射的射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述第一信号通路的所述滤波器303；
所述第一信号通路的所述滤波器303具体用于：对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至天线304；经由所述天线304发射所述待发射的射频信号；
在一些实施例中，所述放大器301第一端连接至所述开关302的第一接入端口；
所述开关302的第二接入端口连接至所述开关302的第三接入端口；
所述开关302的第四接入端口连接至所述天线304的第一端；
所述滤波器303的第一端连接至所述开关302的第五接入端口，所述滤波器303的第二端连接至所述开关302的第六接入端口，各所述端口之间通过所述开关实现连接或断开；
在一些实施例中，所述开关可以通过接收高电平控制信号实现连接，也可是通过接收低电平控制信号实现断开；
所述放大器301的第二端接收射频信号；
所述射频信号包括但不限于：2G、3G、4G和5G信号；
所述第二信号通路的所述放大器301具体用于：对通过待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线304；经由所述天线304发射所述待发射的射频信号。
在对待发射的射频信号进行放大处理的过程中，当所述待发射的射频信号不需要进行滤波处理时，所述第二信号通路中的所述放大器301具体用于：对待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线304；经由所述天线304发射所述待发射的射频信号；
在一些实施例中，所述放大器301第一端连接至所述开关302的第一接入端口；
所述开关302的第二接入端口连接至所述开关302的第三接入端口；
所述开关302的第四接入端口连接至所述天线304的第一端；
各所述端口之间通过所述开关的实现连接或断开；
所述放大器301的第二端接收射频信号；
所述射频信号包括但不限于：2G、3G、4G和5G射频信号。
实际应用中，所述滤波器的数量为多个并对应不同频段且至少有一个所述滤波器处于工作状态时，通过所述开关的切换，在各自所对应的频段对相应频段的待发射的射频信号进行滤波处理；
所述开关302，还用于在需要所述射频前端模块对所传输的射频信号进行滤波处理时，连接所述放大器301和所述天线304，并根据目标通信频段连接相应频段的所述滤波器和所述放大器301，以形成所述射频前端模块中针对所述目标通信频段的所述第一信号通路，用于对传输的所述目标通信频段的射频信号进行放大处理和滤波处理；
所述开关302，还用于在不需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述放大器301和所述天线304，以形成所述射频前端模块中针对所述目标通信频段的第二信号通路，用于对传输的所述目标通信频段的射频信号进行放大处理。
实际应用中，所述开关302，包括第一子开关和第二子开关；
所述第一子开关和第二子开关可以由第一和第二实现；
所述第一子开关的第一端连接至所述放大器301的第一端，所述第二子开关的第一端连接至所述天线304的第一端；
所述第一子开关，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述第一子开关的第二端与目标通信频段相应的所述滤波器的第一端；
所述第二子开关，用于在需要所述射频前端模块对所述传输的射频信号进 行滤波处理时，连接所述第二子开关的第二端与目标通信频段相应的所述滤波器的第二端，以形成所述射频前端模块中的与所述目标通信频段对应的所述第一信号通路；
所述第一子开关，用于在不需要对所述传输的射频信号进行滤波处理时，连接第一子开关的第二端与所述第二子开关的第二端，以形成所述射频前端模块中的直连所述放大器301和所述天线304的第二信号通路。
实际应用中，所述第一子开关和第二子开关的连接关系改变可以由控制器向所述开关304发出控制命令实现，所述控制命令包括但不限于高电平信号和低电平信号，所述控制器既可以位于所述射频前端模块内部，也可以由基站或终端中的基带芯片实现。
图4为本发明实施例中射频前端模块的组成结构示意图，通过图4所示的结构，可以实现对2G信号、3G信号、4G信号和5G信号中任意一种待发射信号的处理，如图4所示，本发明实施例中射频前端模块的组成结构包括：
放大器401、第一开关402、第二开关405和滤波器403；在图4中，还示出了射频模块与天线404的连接。
与前一个实施例中所示的射频前端模块仅有的区别是，本实施例中的第一开关402和第二开关405分别由两个单刀多掷开关实现，而实施例中的射频前端模块的开关302由一个双刀多掷开关组成，因此对实施例中的各部件作用和处理过程不再赘述。
本发明实施例中射频前端模块的组成结构如图5所示，采用该结构可以同时实现对2G、3G、4G和5G等通信模式的支持。本发明实施例中射频前端模块的组成结构包括：
放大器501、开关502、第一滤波器503和第二滤波器505；在图5中，还示出了射频模块与天线504的连接。
所述第一滤波器503和所述第二滤波器505分别用于在各自对应的频段对需要进行滤波处理的待发射的射频信号进行滤波处理；
所述射频信号包括但不限于2G、3G、4G和5G信号；
所述第一滤波器503和所述第二滤波器505可以根据需要处理信号的频率不同，进行不同制式的组合；
所述开关502，用于在需要对所述传输的射频信号进行滤波处理时，连接所述放大器501和天线504，并连接所述放大器501和所述第一滤波器503，或者，连接所述放大器501和所述第二滤波器505，以形成所述射频前端模块中的第一信号通路，所述第一信号通路用于对传输的所述射频信号进行放大处理和滤波处理；
所述开关502，还用于在不需要对所述传输的射频信号进行滤波处理时，连接所述放大器501和所述天线504，以形成所述射频前端模块中的第二信号通路，所述第二信号通路用于对传输的射频信号进行放大处理。
实际应用中，在对待发射的射频信号进行放大处理的过程中，当所述待发射的射频信号需要进行滤波处理时，所述第一信号通路的所述放大器501具体用于：对待发射的2G或3G信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述第一信号通路的所述第一滤波器503，或者，发送至所述第一信号通路的所述第二滤波器505；
所述第一信号通路的所述第一滤波器503具体用于：对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至天线504；经由所述天线504发射所述待发射的射频信号；
所述第一信号通路的所述第二滤波器505具体用于：对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至天线504；经由所述天线504发射所述待发射的射频信号；
在一些实施例中，所述放大器501第一端连接至所述开关502的第一接入端口；
所述开关502的第二接入端口连接至所述开关502的第三接入端口；
所述开关502的第四接入端口连接至所述天线504的第一端；
所述第一滤波器503的第一端连接至所述开关502的第五接入端口，所述第一滤波器503的第二端连接至所述开关502的第六接入端口；
所述第二滤波器505的第一端连接至所述开关502的第七接入端口，所述第二滤波器505的第二端连接至所述开关502的第八接入端口；
各所述端口之间通过所述开关实现连接或断开；
所述第二信号通路的所述放大器501具体用于：对通过待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线504；经由所述天线504发射所述待发射的射频信号。
在对待发射的射频信号进行放大处理的过程中，当所述待发射的射频信号不需要进行滤波处理时，所述第二信号通路中的所述放大器501具体用于：对待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线504；经由所述天线504发射所述待发射的射频信号；
在一些实施例中，所述放大器501第一端连接至所述开关502的第一接入端口；
所述开关502的第二接入端口连接至所述开关502的第三接入端口；
所述开关502的第四接入端口连接至所述天线504的第一端；
各所述端口之间通过所述开关实现连接或断开；
实际应用中，所述开关502，包括第一子开关和第二子开关；
所述第一子开关的第一端连接至所述放大器501的第一端，所述第二子开关的第一端连接至所述天线504的第一端；
所述第一子开关，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述第一子开关的第二端与目标通信频段相应的所述滤波器的第一端；
所述第二子开关，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述第二子开关的第二端与目标通信频段相应的所述滤波器的第二端，以形成所述射频前端模块中的与所述目标通信频段对应的所述第一信号通路；
所述第一子开关，用于在不需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接第一子开关的第二端与所述第二子开关的第二端，以形 成所述射频前端模块中的直连所述放大器501和所述天线504的第二信号通路。
实际应用中，所述第一子开关和第二子开关的连接关系改变可以由控制器向所述开关504发出控制命令实现，所述控制命令包括但不限于高电平信号和低电平信号，所述控制器既可以位于所述射频前端模块内部，也可以由基站或终端中的基带芯片实现。
本发明实施例中射频前端模块的组成结构如图6所示，采用该结构可以同时实现对2G、3G、4G、5G等通信模式的支持。本发明实施例中射频前端模块的组成结构包括：放大器601、开关602、第一滤波器603、第二滤波器605和第三滤波器606；在图6中，还示出了射频模块与天线604的连接。
所述第一滤波器603、所述第二滤波器605和所述第三滤波器606分别用于在各自对应的频段对需要进行滤波处理的射频信号进行滤波处理；
所述射频信号包括但不限于2G、3G、4G和5G信号；
所述第一滤波器603、所述第二滤波器605和所述第三滤波器606可以根据需要处理信号的频率不同，进行不同制式的组合；
所述开关602，用于在需要对所述传输的射频信号进行滤波处理时，连接所述放大器601和天线604，并连接所述放大器601和所述第一滤波器603，或者，连接所述放大器601和所述第二滤波器605，或者，连接所述放大器601和所述第三滤波器606，以形成所述射频前端模块中的第一信号通路，所述第一信号通路用于对传输的所述2G、3G、4G信号进行放大处理和滤波处理；
所述开关602，还用于在不需要对所述传输的2G、3G或4G信号进行滤波处理时，连接所述放大器601和所述天线604，以形成所述射频前端模块中的第二信号通路，所述第二信号通路用于对传输的射频信号进行放大处理。
实际应用中，在对待发射的2G、3G或4G信号进行放大处理的过程中，当所述待发射的2G、3G或4G信号需要进行滤波处理时，所述第一信号通路的所述放大器601具体用于：对待发射的2G、3G或4G信号进行放大处理；并将经过放大处理的所述待发射的2G信号发送至所述第一信号通路的所述第一滤波器603，或者，将经过放大处理的所述待发射的3G信号发送至所述第一 信号通路的所述第二滤波器605，或者，将经过放大处理的所述待发射的4G信号发送至所述第一信号通路的所述第三滤波器606；
所述第一信号通路的所述第一滤波器603具体用于：对放大后的所述待发射的射频信号进行滤波处理；所述射频信号包括但不限于不同频率的2G信号；并将所述经过滤波处理的待发射的射频信号发送至天线604；经由所述天线604发射所述待发射的射频信号；
所述第一信号通路的所述第二滤波器605具体用于：对放大后的所述待发射的射频信号进行滤波处理；所述射频信号包括但不限于不同频率的3G信号；并将所述经过滤波处理的待发射的射频信号发送至天线604；经由所述天线604发射所述待发射的射频信号；
所述第一信号通路的所述第三滤波器606具体用于：对放大后的所述待发射的射频信号进行滤波处理；所述射频信号包括但不限于不同频率的4G信号；并将所述经过滤波处理的待发射的射频信号发送至天线604；经由所述天线604发射所述待发射的射频信号；
在一些实施例中，所述放大器601第一端连接至所述开关602的第一接入端口；
所述开关602的第二接入端口连接至所述开关602的第三接入端口；
所述开关602的第四接入端口连接至所述天线604的第一端；
所述第一滤波器603的第一端连接至所述开关602的第五接入端口，所述第一滤波器603的第二端连接至所述开关602的第六接入端口；
所述第二滤波器605的第一端连接至所述开关602的第七接入端口，所述第二滤波器605的第二端连接至所述开关602的第八接入端口；
所述第三滤波器606的第一端连接至所述开关602的第九接入端口，所述第三滤波器606的第二端连接至所述开关602的第十接入端口；
各所述端口之间通过所述开关的实现连接或断开；
所述第二信号通路的所述放大器601具体用于：对通过待发射的所述2G、3G、4G信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送 至所述天线604；经由所述天线604发射所述待发射的2G、3G或4G信号。
在对待发射的2G、3G或4G信号进行放大处理的过程中，当所述待发射的2G、3G、4G信号不需要进行滤波处理时，所述第二信号通路中的所述放大器601具体用于：对待发射的所述2G、3G或4G信号进行放大处理；并将经过放大处理的所述待发射的2G、3G或4G信号发送至所述天线604；经由所述天线604发射所述待发射的2G、3G或4G信号；
在一些实施例中，所述放大器601第一端连接至所述开关602的第一接入端口；
所述开关602的第二接入端口连接至所述开关602的第三接入端口；
所述开关602的第四接入端口连接至所述天线604的第一端；
各所述端口之间通过所述开关的实现连接或断开；
实际应用中，所述开关602，包括第一子开关和第二子开关；
所述第一子开关的第一端连接至所述放大器601的第一端，所述第二子开关的第一端连接至所述天线604的第一端；
所述第一子开关，用于在需要所述射频前端模块对所述传输的2G、3G或4G信号进行滤波处理时，连接所述第一子开关的第二端与目标通信频段相应的所述滤波器的第一端；
所述第二子开关，用于在需要所述射频前端模块对所述传输的射频信号进行滤波处理时，连接所述第二子开关的第二端与目标通信频段相应的所述滤波器的第二端，以形成所述射频前端模块中的与所述目标通信频段对应的第一信号通路；
所述第一子开关，用于在不需要所述射频前端模块对所述传输的2G、3G或4G信号进行滤波处理时，连接第一子开关的第二端与所述第二子开关的第二端，以形成所述射频前端模块中的直连所述放大器601和所述天线604的第二信号通路。
实际应用中，所述第一子开关和第二子开关的连接关系改变可以由控制器向所述开关604发出控制命令实现，所述控制命令包括但不限于高电平信号和 低电平信号，所述控制器既可以位于所述射频前端模块内部，也可以由基站或终端中的基带芯片实现。
本发明实施例中射频前端模块的组成结构如图7所示，采用该结构可以同时实现对2G、3G、4G和5G等通信模式的支持。本发明实施例中射频前端模块的组成结构包括：
放大器701、开关702、第一滤波器703、第二滤波器705和第三滤波器706；在图7中，还示出了射频模块与天线704的连接。
所述第一滤波器703、所述第二滤波器705和所述第三滤波器706分别用于在各自对应的频段对需要进行滤波处理的射频信号进行滤波处理；
所述射频信号包括但不限于不同频率的2G、3G、4G和5G信号；
所述第一滤波器703、所述第二滤波器705和所述第三滤波器706可以根据需要处理信号的频率不同，进行不同制式的组合；
所述开关702，用于在需要对天线704接收的射频信号进行滤波处理时，连接所述第一滤波器703和基带芯片，或者，所述第二滤波器705和基带芯片，或者，所述第三滤波器706和基带芯片，以形成所述射频前端模块中的第三信号通路，所述第三信号通路用于对天线704接收的所述2G、3G或4G信号进行滤波处理，并将经过滤波处理的射频信号发送至基带芯片；
所述开关702，还用于在不需要对所述天线704接收的2G、3G或4G信号进行滤波处理时，连接基带芯片和所述天线704，以形成所述射频前端模块中的第四信号通路，所述第四信号通路用于将所述天线704接收的射频信号传输至所述基带芯片。
所述第三信号通路的所述第一滤波器703具体用于：对天线704接收的需要进行滤波处理的射频信号进行滤波处理；所述射频信号包括但不限于不同频率的2G信号；并将所述经过滤波处理的射频信号发送至基带芯片；
所述第三信号通路的所述第二滤波器705具体用于：对天线704接收的需要进行滤波处理的射频信号进行滤波处理；所述射频信号包括但不限于不同频率的3G信号；并将所述经过滤波处理的射频信号发送至基带芯片；
所述第三信号通路的所述第三滤波器706具体用于：对天线704接收的需要进行滤波处理的射频信号进行滤波处理；所述射频信号包括但不限于不同频率的4G信号；并将所述经过滤波处理的射频信号发送至基带芯片；
在一些实施例中，所述基带芯片连接至所述开关702的第一接入端口；
所述开关702的第二接入端口连接至所述开关702的第三接入端口；
所述开关702的第四接入端口连接至所述天线704的第一端；
所述第一滤波器703的第一端连接至所述开关702的第十接入端口，所述第一滤波器703的第二端连接至所述开关702的第五接入端口；
所述第二滤波器705的第一端连接至所述开关702的第九接入端口，所述第二滤波器705的第二端连接至所述开关702的第六接入端口；
所述第三滤波器706的第一端连接至所述开关702的第八接入端口，所述第三滤波器706的第二端连接至所述开关702的第七接入端口；
各所述端口之间通过所述开关的实现连接或断开；
实际应用中，所述开关702，包括第一子开关和第二子开关；
其中，所述第一子开关还包括第十一接入端口、第十二接入端口、第十三接入端口、第十四接入端口、第十五接入端口、第十六接入端口、第十七接入端口；
在形成第三信号通路时，所述基带芯片连接第十一接入端口，第十一接入端口连接第十接入端口，所述第一滤波器703将经过滤波处理的射频信号经过所述第十接入端口和第十一接入端口传输至基带芯片；
在形成第三信号通路时，所述基带芯片连接第十三接入端口，第十三接入端口连接第九接入端口，所述第二滤波器705将经过滤波处理的射频信号经过所述第九接入端口和第十三接入端口传输至基带芯片；
在形成第三信号通路时，所述基带芯片连接第十五接入端口，第十五接入端口连接第八接入端口，所述第一滤波器703将经过滤波处理的射频信号经过所述第八接入端口和第十五接入端口传输至基带芯片；
在形成第四信号通路时，所述基带芯片连接第一接入端口，第一接入端口 连接第二接入端口，第二接入端口连接第三接入端口，第三接入端口连接第四接入端口，天线704接收的不需要进行滤波处理的射频信号通过所述第四信号通路传输至基带芯片；
在实际使用中，使用图7所述的结构还能够将需要经过滤波处理的待发射的射频信号传输至天线704，由所述天线704发射；
在一些实施例中，所述放大器701连接所述开关702的第一接入端口，所述第一接入端口连接所述第十七接入端口，第十七接入端口分别连接第十二接入端口、第十四接入端口、第十六接入端口，所述第十二接入端口连接第十接入端口，所述第十四接入端口连接第九接入端口，所述第十六接入端口连接第八接入端口，根据待发射的射频信号的不同种类，所述待发射的射频信号可以通过所述第十二接入端口和所述第十接入端口传输至第一滤波器703，或者，通过所述第十四接入端口和所述第九接入端口传输至第二滤波器705，或者，通过所述第十六接入端口和所述第八接入端口传输至第三滤波器706，经过各滤波器的处理后，由所述天线704将所述经过滤波处理的射频信号发射。
图8为本发明实施例中射频前端模块的组成结构示意图；在图8中，还示出了射频模块与天线704的连接。如图8所示的实施例中的射频前端模块的组成结构中，使用第一双工器803代替第一滤波器703，第二双工器805代替第二滤波器705，第三双工器806代替第三滤波器706，如图8所示，使用双工器代替滤波器时，所述双工器上端的接收滤波器接收所述天线发送的需要进行滤波处理的射频信号；
所述射频信号包括但不限于2G、3G、4G和5G信号；
实际使用中页可以使用至少一个双工器或多工器替代实施例中的一个滤波器，以避免信号干扰，因此对实施例中的各部件作用和处理过程不再赘述。
由于本发明实施例实现了通过切换开关的连接控制对射频前端模块中传输的射频信号的处理，克服了相关技术中需要针对射频信号的种类添加放大器的缺陷，有效减少了射频前端模块的面积，简化了射频前端模块中各部件的连接关系，同时本发明实施例不需要限定使用环境，实现简单方便，适用范围更广。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例提供的射频前端模块，包括：放大器、开关和滤波器；开关，用于在需要发射射频信号、且需要射频前端模块对来自基带芯片的所传输的射频信号进行滤波处理时，连接放大器和天线，并连接所述放大器和所述滤波器，以形成所述射频前端模块中的第一信号通路，用于对在所述第一信号通路中传输的所述射频信号进行放大处理和滤波处理；所述开关，还用于在不需要所述射频前端模块对所传输的射频信号进行滤波处理时，连接所述放大器和所述天线，以形成所述射频前端模块中的第二信号通路，用于对第二信号通路中传输的射频信号进行放大处理。本发明还提供了一种射频信号处理方法。

Claims (10)

  1. 一种射频前端模块，包括：
    放大器、开关和滤波器；
    所述开关，用于在需要发射射频信号、且需要所述射频前端模块对来自基带芯片的所传输的射频信号进行滤波处理时，连接所述放大器和天线，并连接所述放大器和所述滤波器，以形成所述射频前端模块中的第一信号通路，所述第一信号通路用于对在所述第一信号通路中传输的所述射频信号进行放大处理和滤波处理；
    所述开关，还用于在不需要所述射频前端模块对所传输的射频信号进行滤波处理时，连接所述放大器和所述天线，以形成所述射频前端模块中的第二信号通路，所述第二信号通路用于对所述第二信号通路中传输的射频信号进行放大处理。
  2. 根据权利要求1所述的射频前端模块，其中，
    所述第一信号通路中的所述放大器具体用于：在需要发射射频信号时，对所述射频信号进行放大处理；并将经过放大处理的待发射的射频信号发送至所述第一信号通路的所述滤波器；
    所述第一信号通路中的所述滤波器具体用于：对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至所述天线；经由所述天线发射所述待发射的射频信号；
    所述第二信号通路中的所述放大器具体用于：在需要发射射频信号时，对所述射频信号进行放大处理；并将经过放大处理的待发射的射频信号发送至所述第二信号通路的所述天线。
  3. 根据权利要求2所述的射频前端模块，其中，
    所述滤波器的数量至少为两个；
    所述开关，还用于切换连接状态，以使至少两个所述滤波器中的至少一个滤波器连接所述放大器，并连接所述放大器和所述天线，以形成所述至少一个 滤波器对应的所述第一信号通路；
    所述滤波器，还用于在所对应的所述第一信号通路中，对相应频段的待发射的射频信号进行滤波处理。
  4. 根据权利要求1所述的射频前端模块，其中，
    所述开关，还用于在需要接收来自天线感应到的射频信号时，连接所述天线与所述滤波器，并连接基带芯片，以形成所述射频前端模块中的第三信号通路，用于对在所述第三信号通路中传输的所述接收的射频信号进行滤波处理；
    所述开关，还用于在需要接收来自天线感应到的射频信号时，连接所述天线与所述基带芯片，以形成所述射频前端模块中的第四信号通路，用于在所述第四信号通路中传输所述接收的射频信号。
  5. 根据权利要求4所述的射频前端模块，其中，
    所述滤波器的数量至少为两个；
    所述开关，还用于切换连接状态，以使至少两个所述滤波器中的至少一个滤波器连接所述天线，以形成所述至少一个滤波器对应的所述第三信号通路；
    所述滤波器，还用于在所对应的所述第三信号通路中，对相应频段的已经接收的射频信号进行滤波处理。
  6. 一种射频信号处理方法，包括：
    在需要射频前端模块对传输的待发射的射频信号进行滤波处理时，通过开关连接放大器和天线，并通过所述开关连接所述放大器和滤波器，以形成所述射频前端模块中的第一信号通路，基于所述第一信号通路用于对传输的待发射的射频信号进行放大处理和滤波处理；
    在不需要所述射频前端模块对所述传输的射频信号进行滤波处理时，通过所述开关连接所述放大器和所述天线，以形成所述射频前端模块中的第二信号通路，基于所述第二信号通路用于对传输的待发射的射频信号进行放大处理。
  7. 根据权利要求6所述的方法，其中，
    所述基于所述第一信号通路用于对传输的射频信号进行放大处理和滤波处理，包括：
    通过所述第一信号通路中的所述放大器对待发射的射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述第一信号通路的所述滤波器；
    通过所述第一信号通路中的所述滤波器对放大后的所述待发射的射频信号进行滤波处理；并将所述经过滤波处理的待发射的射频信号发送至所述天线；经由所述天线发射所述待发射的射频信号；
    所述基于所述第二信号通路用于对传输的射频信号进行放大处理，包括：
    通过所述第二信号通路中的所述放大器对待发射的所述射频信号进行放大处理；并将经过放大处理的所述待发射的射频信号发送至所述天线；经由所述天线发射所述待发射的射频信号。
  8. 根据权利要求6所述的方法，其中，还包括：
    所述滤波器的数量至少为两个时，通过切换所述开关的连接状态，以使至少两个所述滤波器中的至少一个滤波器连接所述放大器，并连接所述放大器和所述天线，以形成所述至少一个滤波器对应的所述第一信号通路；
    通过所述滤波器对应的所述第一信号通路，对相应频段的待发射的射频信号进行滤波处理。
  9. 根据权利要求6所述的方法，其中，还包括：
    在需要对接收来自天线感应到的射频信号进行滤波处理时，通过所述开关连接所述天线与所述滤波器，并通过所述开关连接基带芯片，以形成所述射频前端模块中的第三信号通路，基于所述第三信号通路对在所述第三信号通路中传输的所述接收的射频信号进行滤波处理；
    在不需要对接收来自天线感应到的射频信号进行滤波处理时，通过所述开关连接所述天线与所述基带芯片，以形成所述射频前端模块中的第四信号通路，基于所述第四信号通路传输所述接收的射频信号。
  10. 根据权利要求9所述的方法，其中，还包括：
    所述滤波器的数量至少为两个时，通过切换所述开关的连接状态，以使至少两个所述滤波器中的至少一个滤波器连接所述天线，以形成所述至少一个滤 波器对应的所述第三信号通路；
    通过所述滤波器对应的所述第三信号通路，对相应频段的已经接收的射频信号进行滤波处理。
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