WO2019233253A1 - 射频电路、终端及信号发射控制方法 - Google Patents

射频电路、终端及信号发射控制方法 Download PDF

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Publication number
WO2019233253A1
WO2019233253A1 PCT/CN2019/086983 CN2019086983W WO2019233253A1 WO 2019233253 A1 WO2019233253 A1 WO 2019233253A1 CN 2019086983 W CN2019086983 W CN 2019086983W WO 2019233253 A1 WO2019233253 A1 WO 2019233253A1
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WIPO (PCT)
Prior art keywords
terminal
frequency band
transceiver
network
channel
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PCT/CN2019/086983
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English (en)
French (fr)
Inventor
王柏钢
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维沃移动通信有限公司
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Publication of WO2019233253A1 publication Critical patent/WO2019233253A1/zh

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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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • 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
    • H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0053—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • 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
    • H04B1/401—Circuits for selecting or indicating operating mode
    • 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
    • H04B1/50—Circuits using different frequencies for the two directions of communication

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a radio frequency circuit, a terminal, and a signal transmission control method.
  • terminals such as mobile phones and tablet computers are becoming more and more popular and have become an integral part of people's daily lives.
  • the requirements on the performance and functions of the terminal have become higher and higher, especially the high-rate data transmission capability of the terminal.
  • the network in its working frequency band cannot simultaneously take into account the requirements of high data rate and wide area coverage, especially when the network's wide area coverage capability of the working frequency band of the terminal is poor, it will affect The uplink signal is transmitted to the terminal, thereby reducing the uplink data transmission performance of the terminal.
  • the terminal in the related technology has a problem that the uplink data transmission performance is low because the network in which the terminal is located cannot meet the requirements of high data rate and wide area coverage.
  • Embodiments of the present disclosure provide a radio frequency circuit, a terminal, and a method for controlling signal transmission, so as to solve the problem that the terminal in the related technology has low uplink data transmission performance due to the inability of the network in which the high data rate and wide area coverage can be considered. .
  • an embodiment of the present disclosure provides a radio frequency circuit, which is applied to a terminal.
  • the radio frequency circuit includes:
  • the switching unit is connected to the first antenna and constitutes a first transmitting and receiving channel for transmitting signals in the first frequency band and the second frequency band; and is connected to the second antenna and constitutes for transmitting and receiving signals in the first frequency band and the first frequency band.
  • the switching unit is configured to work in a first state when the current network of the terminal is the first network, and connect the first transceiver unit and the second transceiver unit with the first transceiver channel and
  • the second transceiver channels are connected in a one-to-one correspondence; and when the current network of the terminal is the second network, the second transceiver channels work in a second state, and the first transceiver unit or the second transceiver unit is connected to the second transceiver unit.
  • the first transceiver channel is in communication with the second transceiver channel.
  • an embodiment of the present disclosure further provides a terminal, which includes the radio frequency circuit as described above.
  • an embodiment of the present disclosure further provides a signal transmission control method, which is applied to the terminal as described above, and includes:
  • a signal is transmitted on the first frequency band or the second frequency band through the first transceiver channel and the second transceiver channel.
  • the radio frequency circuit of the terminal can simultaneously transmit uplink signals through the first transceiver channel and the second transceiver channel, which enhances the terminal's ability to transmit uplink signals, and improves the uplink data transmission performance of the terminal.
  • the terminal may also transmit signals through the same frequency band or different frequency bands when the first receiving and transmitting channels and the second receiving and transmitting channels send uplink signals simultaneously according to the current network in which the terminal is located.
  • the second transceiver channel transmit uplink signals on the first frequency band and the second frequency band respectively; while in the second network, the uplink signals are transmitted on the first frequency band or the second frequency band through the first transceiver channel and the second transceiver channel, so that The terminal can flexibly select the uplink signal transmission mode, which further enhances its ability to transmit uplink signals and uplink data transmission performance.
  • FIG. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure
  • FIG. 2a is one of the structural schematic diagrams of a switching unit in a first state according to an embodiment of the present disclosure
  • FIG. 2b is a second schematic structural diagram of a switching unit in a first state according to an embodiment of the present disclosure
  • FIG. 2c is one of the structural schematic diagrams of a switching unit in a second state according to an embodiment of the present disclosure
  • 2d is a second schematic structural diagram of a switching unit in a second state according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of another radio frequency circuit according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of a signal transmission control method according to an embodiment of the present disclosure.
  • the radio frequency circuit according to the embodiment of the present disclosure is applied to a terminal.
  • the radio frequency circuit includes:
  • the switching unit is connected to the first antenna and constitutes a first transmitting and receiving channel for transmitting signals in the first frequency band and the second frequency band; and is connected to the second antenna and constitutes for transmitting and receiving signals in the first frequency band and the first frequency band.
  • the switching unit is configured to work in a first state when the current network of the terminal is the first network, and connect the first transceiver unit and the second transceiver unit with the first transceiver channel and
  • the second transceiver channels are connected in a one-to-one correspondence; and when the current network of the terminal is the second network, the second transceiver channels work in a second state, and connect the first transceiver unit or the second transceiver unit with all
  • the first transceiver channel is in communication with the second transceiver channel.
  • the radio frequency circuit described in the embodiment of the present disclosure can transmit uplink signals through the first and second receiving and transmitting channels at the same time, enhancing the terminal's ability to transmit uplink signals, and improving the uplink data transmission performance of the terminal.
  • the terminal may also transmit signals through the same frequency band or different frequency bands when the first receiving and transmitting channels and the second receiving and transmitting channels send uplink signals simultaneously according to the current network in which the terminal is located.
  • the second transceiver channel transmit uplink signals on the first frequency band and the second frequency band respectively; while in the second network, the uplink signals are transmitted on the first frequency band or the second frequency band through the first transceiver channel and the second transceiver channel, so that The terminal can flexibly select the uplink signal transmission mode, which further enhances its ability to transmit uplink signals and uplink data transmission performance.
  • FIG. 1 is a schematic structural diagram of a radio frequency circuit provided by an embodiment of the present disclosure and applied to a terminal.
  • the radio frequency circuit 10 includes:
  • the first antenna 11 and the second antenna 12 are connected to each other.
  • the switching unit 15 is connected to the first antenna 11 and constitutes a first transmitting / receiving channel for transmitting signals on the first frequency band and the second frequency band; and is connected to the second antenna 12 and constitutes for transmitting the first antenna A second transmitting and receiving channel for transmitting signals on the frequency band and the second frequency band;
  • the switching unit 15 is configured to work in a first state when the current network of the terminal is the first network, and respectively connect the first transceiver unit 13 and the second transceiver unit 14 to the first transceiver.
  • the channel and the second transceiver channel are connected in a one-to-one correspondence; and, when the current network of the terminal is the second network, the channel works in the second state, and the first transceiver unit 13 or the second transceiver unit 14 is operated. Is in communication with the first transceiver channel and the second transceiver channel.
  • the switching unit 15 One-to-one communication between the first transceiver unit 13 and the second transceiver unit 14 and the first transceiver channel and the second transceiver channel, respectively, so that the terminal can achieve the first frequency band through the first transceiver channel and the second transceiver channel, respectively.
  • an uplink signal is transmitted on the second frequency band; and when the current network of the terminal is the second network, the switching unit 15 connects the first transceiver unit 13 or the second transceiver unit 14 with the first transceiver channel and the second transceiver channel, so that The terminal may transmit an uplink signal on the first frequency band or the second frequency band through the first transceiver channel and the second transceiver channel.
  • the terminal can respond to the downlink signal and send the uplink signal to the network-side device through its radio frequency circuit 10 on the first frequency band and the second frequency band simultaneously, that is, the first A frequency band and a second frequency band are frequency bands in which the radio frequency circuit 10 can simultaneously transmit uplink signals.
  • the first frequency band and the second frequency band are a Global System for Mobile Communication (GSM) network and a long-term evolution (Long). Term (Evolution, LTE) networks, etc.
  • GSM Global System for Mobile Communication
  • Long long-term evolution
  • LTE Long-term evolution
  • the radio frequency circuit 10 can transmit uplink signals on the first frequency band and the second frequency band through the first transceiver channel and the second transceiver channel, respectively.
  • the network frequency band covered by the domain and the second frequency band are high-data-transmission network frequency bands.
  • the first frequency band is a third-generation mobile communication technology (3rd-Generation, 3G) frequency band
  • the second frequency band is an LTE frequency band.
  • the radio frequency circuit 10 can pass the first transceiver channel and the second transceiver channel, Achieve the transmission of uplink signals on the first or second frequency band, respectively, that is, transmit the uplink signals on the first frequency band through the first antenna and the second antenna at the same time, enhance the signal transmission capability of the terminal, and also improve the data transmission performance of the terminal.
  • first network and the second network may be networks with different parameters such as a network architecture, and the terminal transmits uplink signals on two different frequency bands through the first transceiver channel and the second transceiver channel under the first network.
  • the terminal transmits uplink signals on the same frequency band through the first transceiver channel and the second transceiver channel, which can enhance the ability to transmit uplink signals, which is not limited here. .
  • the first transceiver unit 13 and the second transceiver unit 14 may receive downlink signals and transmit uplink signals on the first frequency band and the second frequency band, respectively.
  • the first transceiver unit 13 includes A first radio frequency transceiver 131 and a first modem 132 operating in a first frequency band, and the first radio frequency transceiver 131 is connected to the first modem 132 and the switching unit 15;
  • the second transceiver unit 14 includes a second radio frequency transceiver 141 and a second modem 142 operating in a second frequency band.
  • the second radio frequency transceiver 141 is connected to the second modem 142 and the switching unit 15.
  • the first modem 132 may modulate and demodulate the uplink signal in the first frequency band to provide the waveform and data required by the uplink signal in the first frequency band, and the first radio frequency transceiver 131 may perform the uplink signal in the first frequency band. Up-down conversion and driving methods, so that the first transceiver unit 13 transmits uplink signals in the first frequency band; similarly, the second modem 142 can modulate and demodulate uplink signals in the second frequency band to provide uplink in the second frequency band.
  • the waveform and data required by the signal, and the second radio frequency transceiver 141 may perform an up-down conversion and driving method on the uplink signal of the second frequency band, so as to implement the first transceiver unit 13 to transmit the uplink signal on the second frequency band.
  • the switching unit may be any one-to-one corresponding communication between the first transceiver unit 13 and the second transceiver unit 14 and the first transceiver channel and the second transceiver channel in the first state; and, In the second state, a component that communicates the first transceiver unit 13 or the second transceiver unit 14 with the first transceiver channel and the second transceiver channel.
  • the switching unit 15 includes a first terminal 151, a second terminal 152, a third terminal 153, a fourth terminal 154, a first connection arm 155, and a second connection arm 156.
  • the first terminal 151 is connected to the first antenna 11;
  • the second terminal 152 is connected to the second antenna 12;
  • the third terminal 153 is connected to the first transceiver unit 13;
  • the fourth The terminal 154 is connected to the second transceiver unit 14;
  • the switching unit 15 operates in a first state; and when the first connection arm 155 communicates with the first terminal 51 and the third terminal 153, and the second connection arm 156 communicates with the first The second terminal 152 is connected to the third terminal 153, as shown in FIG.
  • the switching unit 15 works in a second state.
  • the switching unit 15 can switch between the first state and the second state through the action of the two connecting arms at the four terminals.
  • the implementation principle is similar to the double-pole double-throw switch.
  • the unit 15 can be regarded as an improved double-pole double-throw switch, so that the structure is simple and the reliability is high.
  • a control circuit for controlling the switching unit 15 may be separately provided in the radio frequency circuit 10.
  • the radio frequency circuit may further include:
  • a baseband processor 16 configured to control the switching unit to work in a first state when the current network of the terminal is the first network; and when the current network of the terminal is the second network , Controlling the switching unit to work in a second state.
  • the switching state of the control switching unit 15 is changed by the baseband processor in the radio frequency circuit, so that the structure of the radio frequency circuit is simple and the circuit reliability is higher.
  • the first transmitting and receiving channels and the second transmitting and receiving channels can respectively process the uplink signals sent by the radio frequency circuit in the first frequency band and the second frequency band, thereby improving the quality of the uplink signals, thereby further Improve the uplink data transmission performance of the terminal.
  • the above-mentioned baseband processor 16 is also connected to the first transceiver unit 13 and the second transceiver unit 14, and the baseband processor 16 controls the first transceiver unit 13 and the second transceiver unit 14 to transmit and receive on the first frequency band and the second frequency band, respectively. signal.
  • the radio frequency circuit further includes a first front-end network 17 provided on the first transceiving channel, and a second front-end network 18 provided on the second transceiving channel:
  • the first front-end network 17 is configured to process signals of the first transceiver channel on the first frequency band and the second frequency band;
  • the second front-end network 18 is configured to process signals of the second transceiver channel on the first frequency band and the second frequency band.
  • the first front-end network 17 and the second front-end network 18 process the signals of the first transmitting and receiving channels and the second transmitting and receiving channels, respectively.
  • the signals may be processed by amplification, frequency division and combination, and impedance matching. Here, It is not limited.
  • the first front-end network 17 and the second front-end network 18 respectively include a radio frequency power amplifier 171 and a radio frequency filter 172 connected to each other, and the radio frequency power amplifier 171 is configured to use the first Signals on one frequency band and the second frequency band are amplified by power; the radio frequency filter 172 is configured to filter signals on the first frequency band and the second frequency band.
  • the radio frequency power amplifier 171 and the radio frequency filter 172 can perform power amplification and filtering on the uplink signals in the first frequency band and the second frequency band, respectively, so that the performance indicators of the uplink signals meet the requirements of the radio frequency indicators.
  • the terminal transmits the uplink signal through the first transmitting and receiving channels and the second transmitting and receiving channels on the first and second frequency bands through the first antenna 11 and the second antenna 12, and the first antenna 11 and the second
  • the antenna 12 has the capability of transmitting and receiving signals, and therefore, the terminal can also receive downlink signals on the first frequency band and the second frequency band through the first transceiver channel and the second transceiver channel.
  • the radio frequency circuit 10 may further include a first transmit-receive switch 19 provided on the first transmit-receive channel, and a second transmit-receive switch 110 provided on the second transmit-receive channel;
  • the first transmit-receive switch 19 is used to control the first transmit-receive channel in a working mode of transmitting signals on the first frequency band and the second frequency band;
  • the second transceiver switch 110 is configured to control the second transceiver channel in a working mode of transmitting signals on the first frequency band and the second frequency band.
  • the first transmit-receive switch 19 and the second transmit-receive switch 110 can control the first transmit-receive channel and the second transmit-receive channel to be in the first frequency band and the second frequency band, respectively.
  • the first transmitting and receiving switching switch 19 and the second transmitting and receiving switching switch 110 can control the first transmitting and receiving channels and the second transmitting and receiving channels in the first frequency band and The working mode of the transmitted signal on the second frequency band, so as to realize the timely switching of the working modes of the first transceiver channel and the second transceiver channel, so that the terminal receives and receives signals to share the first antenna and the second antenna.
  • a control unit may be provided in the above-mentioned radio frequency circuit 10 to control the switching of the working modes of the first transceiver switch 19 and the second transceiver switch 110.
  • the control end of the first transmission / reception switch 19 and the control end of the second transmission / reception switch 110 may be connected to the baseband processor 16 respectively, and the first transmission / reception switch 19 and the second transmission / reception are controlled by the baseband processor 16. The operation mode of the switch 110 is switched.
  • the network architecture uses a non-standalone (NSA) architecture, that is, through the LTE and 5G dual connection mechanism, the data plane uses the LTE path and the 5G path to meet the high-speed demand, and the control plane of the 5G network uses LTE Channel to ensure uplink coverage performance;
  • NSA non-standalone
  • the network architecture uses an independent (StandAlone, SA) architecture, that is, the control plane and data plane of the 5G network are all routed from the 5G channel.
  • SA independent
  • MIMO multiple input multiple output
  • the above-mentioned radio frequency circuit can be used to enable the terminal to support both types of architectures at the same time, that is, the first frequency band can be an LTE frequency band; the second frequency band can be 5G frequency bands, such as B1 frequency band and n1 frequency band, B3 and n3 frequency band or B41 and n41 frequency band, and so on. details as follows:
  • the RF circuit may include a baseband processor 301, an LTE modem 302, an LTE radio transceiver 303, a 5G modem 304, a 5G radio transceiver 305, a switch 306, and two LTE / 5G power amplifiers 307 (Power Amplifier , PA), two LTE / 5G RF filters 308, two LTE / 5G transceiver switches 309, a first antenna 310 and a second antenna 311, of which:
  • the LTE modem 302 and the LTE radio frequency transceiver 303 are connected in series between the baseband processor 301 and the switch 306.
  • the LTE modem 302 is used to modulate and demodulate signals in the LTE frequency band
  • the LTE radio frequency transceiver 303 is used to modulate the LTE frequency band. Signal up-conversion and drive amplification;
  • the 5G modem 304 and the 5G radio frequency transceiver 305 are connected in series between the baseband processor 301 and the switch 306.
  • the 5G modem 304 is used to modulate and demodulate signals in the 5G frequency band
  • the 5G radio frequency transceiver 305 is used to modulate the 5G frequency band. Signal up-conversion and drive amplification;
  • an LTE / 5G power amplifier 307 an LTE / 5G radio frequency filter 308, and an LTE / 5G transceiver switch 309 are connected in series, so that the switch 306 and the first antenna 310 are connected in series. Forming a first transmitting and receiving channel between them;
  • an LTE / 5G power amplifier 307 an LTE / 5G radio frequency filter 308, and an LTE / 5G transceiver switch 309 are connected in series, so that the switch 306 and the second antenna 311 are connected in series. Forming a second sending and receiving channel between them;
  • the LTE / 5G power amplifier 307 is used to power amplify signals on the LTE band and the 5G frequency band. Among them, the signal index of the LTE / 5G power amplifier 307 after power amplification should be able to meet the 5G radio frequency requirements. Higher, while meeting the 5G radio frequency index requirements, it can be guaranteed to meet the LTE radio frequency index requirements;
  • LTE / 5G RF filter 308 for filtering signals outside the LTE band and 5G band;
  • the LTE / 5G transmission and reception switch 309 is used to switch between the working mode of receiving and receiving downlink signals and the working mode of transmitting uplink signals at the receiving and transmitting channels where the LTE / 5G is located;
  • the above-mentioned baseband processor 301 is also connected to the control end of the switch 306, and to the control ends of the two LTE / 5G transceiver switches 309, respectively.
  • the baseband processor 301 pairs the switch 306 and the two LTE / 5G transceiver switches. 309 control;
  • the above-mentioned changeover switch 306 may adopt the improved double-pole double-throw switch, that is, the changeover switch 306 includes a signal terminal A1, a signal terminal A2, a signal terminal A3, a signal terminal A4, and two connecting arms;
  • the LTE modem 302 is connected to the LTE / 5G transceiver switch 309 in the first transceiver channel, and constitutes an NSA receiving path for receiving and processing network control signals in the NSA network architecture; and, the 5G modem and the LTE / The 5G transceiver switch 309 is connected to form an SA receiving path for receiving and processing network control signals under the SA network architecture.
  • the terminal When the terminal is in a standby state (that is, a state where no signal is being transmitted or received), the terminal monitors the signaling issued by the network-side device;
  • the baseband processor 301 demodulates the received signal to determine whether the current network is an NSA-based network or an SA-based network;
  • control the first transceiver channel and the second transceiver channel to transmit uplink signals in the LTE frequency band and the 5G frequency band, respectively;
  • the baseband processor 301 can control other components in the radio frequency circuit to perform the following operations:
  • the connecting arm in the control switching unit 306 connects the signal terminal A1 and the signal terminal A3, and the signal terminal A2 and the signal terminal A4, so that the uplink signal of the LTE frequency band is transmitted through the first receiving and transmitting channel, and the uplink signal of the 5G frequency band is transmitted through the second Transmit and receive channels; or connect signal terminal A1 and signal terminal A4, and signal terminal A2 and signal terminal A3, so that uplink signals in the LTE frequency band are transmitted through the second transceiver channel, and uplink signals in the 5G frequency band are transmitted through the first transceiver channel emission;
  • Control the LTE / 5G power amplifier 307 to work in the LTE / 5G mode, and perform power amplification on the uplink signals of the transmitting and receiving channels where the LTE / 5G power amplifier 307 is located;
  • the first transceiver channel and the second transceiver channel are controlled to transmit uplink signals in the LTE frequency band or the 5G frequency band.
  • the baseband processor 301 can control other components in the radio frequency circuit to perform the following operations:
  • the connecting arm in the control switching unit 306 connects the signal terminal A2 and the signal terminal A3, and connects the signal terminal A2 and the signal terminal A4, so that the uplink signal of the 5G band is transmitted through the first transceiver channel and the second transceiver channel;
  • Control the LTE / 5G power amplifier 307 to work in the LTE / 5G mode, and perform power amplification on the uplink signals of the transmitting and receiving channels where the LTE / 5G power amplifier 307 is located;
  • the terminal can implement the function of transmitting uplink signals through two transmit and receive channels simultaneously under the dual connection of the LTE frequency band and the 5G frequency band.
  • the terminal In the 5G frequency band, the function of transmitting uplink signals through two transceiver channels at the same time can be realized, thereby improving the data transmission performance of the terminal.
  • the baseband processor 301 controls the connecting arm in the switching unit 306 to connect the signal terminals A2 and The signal terminal A3 is connected, and the signal terminal A2 and the signal terminal A4 are connected, that is, when the terminal's current network is a SA architecture network, the radio frequency circuit is in the 5G frequency band through the first transceiver channel and the The second transceiver channel transmits a signal.
  • the radio frequency circuit in the embodiment of the present disclosure can transmit uplink signals through the first transceiver channel and the second transceiver channel at the same time, enhancing the terminal's ability to transmit uplink signals, and improving the uplink data transmission performance of the terminal.
  • the terminal may also transmit signals through the same frequency band or different frequency bands when the first receiving and transmitting channels and the second receiving and transmitting channels send uplink signals simultaneously according to the current network in which the terminal is located.
  • the second transceiver channel transmit uplink signals on the first frequency band and the second frequency band respectively; while in the second network, the uplink signals are transmitted on the first frequency band or the second frequency band through the first transceiver channel and the second transceiver channel, so that The terminal can flexibly select the uplink signal transmission mode, which further enhances its ability to transmit uplink signals and uplink data transmission performance.
  • an embodiment of the present disclosure further provides a terminal including the above-mentioned radio frequency circuit.
  • the terminal may include: a mobile phone, a tablet computer, a laptop computer, a personal digital assistant (PDA), and a mobile Internet device (Mobile Internet Device, MID) or Wearable Device.
  • PDA personal digital assistant
  • a mobile Internet device Mobile Internet Device, MID
  • FIG. 4 is a signal transmission control method provided by an embodiment of the present disclosure, which is applied to the terminal. As shown in FIG. 4, the method includes the following steps:
  • Step 401 Obtain the current network of the terminal.
  • Step 402 When the current network of the terminal is the first network, transmit signals on the first frequency band and the second frequency band through the first transceiver channel and the second transceiver channel, respectively;
  • Step 403 When the current network of the terminal is a second network, transmit signals on the first frequency band or the second frequency band through the first transceiver channel and the second transceiver channel, respectively.
  • this embodiment is an implementation manner corresponding to the radio frequency circuit in the foregoing embodiment.
  • For a specific implementation manner refer to the related description of the foregoing embodiment. In order to avoid repetitive description, this embodiment is not repeated here, and may also be described in detail. To achieve the same beneficial effect.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开提供一种射频电路、终端及信号发射控制方法，包括：第一天线和第二天线；在第一频段上发射信号的第一收发单元，和在第二频段上发射信号的第二收发单元；切换单元，与第一天线连接构成在第一频段和第二频段上传输信号的第一收发通道；与第二天线连接构成用于在第一频段和第二频段上传输信号的第二收发通道；切换单元在终端的当前网络为第一网络时在第一状态下工作，将第一收发单元和第二收发单元分别与第一收发通道和第二收发通道一一对应连通；在终端的当前网络为第二网络时在第二状态下工作，将第一收发单元或者第二收发单元与第一收发通道和第二收发通道连通。

Description

射频电路、终端及信号发射控制方法
相关申请的交叉引用
本申请主张在2018年6月6日在中国提交的中国专利申请No.201810575674.2的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信领域，尤其涉及一种射频电路、终端及信号发射控制方法。
背景技术
随着移动通信技术的飞速发展，手机以及平板电脑等终端越来越普及，并已成为人们日常生活中不可或缺的一部分。人们在使用终端的过程中，对于终端的性能以及功能等要求也变得越来越高，尤其是终端的高速率数据传输能力。但是，相关技术中的终端在工作过程中，由于其工作频段内的网络无法同时兼顾高数据速率以及广域覆盖的要求，尤其是终端的工作频段的网络广域覆盖能力较差时，会影响到终端发射上行信号，从而降低终端的上行数据传输性能。
可见，相关技术中的终端存在因所处网络无法兼顾高数据速率和广域覆盖的要求，而导致上行数据传输性能低的问题。
发明内容
本公开实施例提供一种射频电路、终端及信号发射控制方法，以解决相关技术中的终端存在因所处网络无法兼顾高数据速率和广域覆盖的要求，而导致上行数据传输性能低的问题。
为解决上述技术问题，本公开是这样实现的：
第一方面，本公开实施例提供了一种射频电路，应用于终端，所述射频电路包括：
第一天线以及第二天线；
用于在第一频段上发射信号的第一收发单元，以及用于在第二频段上发射信号的第二收发单元；
切换单元，与所述第一天线连接，构成用于在第一频段和第二频段上传输信号的第一收发通道；以及，与所述第二天线连接，构成用于在第一频段和第二频段上传输信号的第二收发通道；
所述切换单元用于在所述终端的当前网络为第一网络时工作在第一状态下工作，将所述第一收发单元和所述第二收发单元，分别与所述第一收发通道和所述第二收发通道一一对应连通；以及，在所述终端的当前网络为第二网络时在第二状态下工作，将所述第一收发单元或者所述第二收发单元，与所述第一收发通道和所述第二收发通道连通。
第二方面，本公开实施例还提供一种终端，包括如上所述的射频电路。
第三方面，本公开实施例还提供一种信号发射控制方法，应用于如上所述的终端，包括：
获取所述终端的当前网络；
在所述终端的当前网络为第一网络的情况下，通过第一收发通道和第二收发通道，分别在第一频段和第二频段上发射信号；
在所述终端的当前网络为第二网络的情况下，通过第一收发通道和第二收发通道，在第一频段或者第二频段上发射信号。
本公开实施例中，终端的射频电路可以通过第一收发通道和第二收发通道同时发射上行信号，增强终端发射上行信号的能力，提升终端的上行数据传输性能。另外，终端还可以根据其所处的当前网络，在第一收发通道和第二收发通道同时发送上行信号时，通过相同频段或者不同频段发射信号，即在第一网络时，通过第一收发通道和第二收发通道分别在第一频段和第二频段上发射上行信号；而在第二网络时，通过第一收发通道和第二收发通道在第一频段或者第二频段上发射上行信号，使终端可以灵活选择上行信号发射方式，进一步增强其发射上行信号的能力以及上行数据传输性能。
附图说明
图1是本公开实施例提供的一种射频电路的结构示意图；
图2a是本公开实施例提供的一种切换单元在第一状态下的结构示意图之一；
图2b是本公开实施例提供的一种切换单元在第一状态下的结构示意图之二；
图2c是本公开实施例提供的一种切换单元在第二状态下的结构示意图之一；
图2d是本公开实施例提供的一种切换单元在第二状态下的结构示意图之二；
图3是本公开实施例提供的另一种射频电路的结构示意图；
图4是本公开实施例提供的一种信号发射控制方法的流程示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开实施例所述的射频电路，应用于终端，所述射频电路包括：
第一天线以及第二天线；
用于在第一频段上发射信号的第一收发单元，以及用于在第二频段上发射信号的第二收发单元；
切换单元，与所述第一天线连接，构成用于在第一频段和第二频段上传输信号的第一收发通道；以及，与所述第二天线连接，构成用于在第一频段和第二频段上传输信号的第二收发通道；
所述切换单元用于在所述终端的当前网络为第一网络时，在第一状态下工作，将所述第一收发单元和所述第二收发单元，分别与所述第一收发通道和所述第二收发通道一一对应连通；以及，在所述终端的当前网络为第二网络时，在第二状态下工作，将所述第一收发单元或者所述第二收发单元，与所述第一收发通道和所述第二收发通道连通。
本公开实施例所述的射频电路，可以通过第一收发通道和第二收发通道 同时发射上行信号，增强终端发射上行信号的能力，提升终端的上行数据传输性能。另外，终端还可以根据其所处的当前网络，在第一收发通道和第二收发通道同时发送上行信号时，通过相同频段或者不同频段发射信号，即在第一网络时，通过第一收发通道和第二收发通道分别在第一频段和第二频段上发射上行信号；而在第二网络时，通过第一收发通道和第二收发通道在第一频段或者第二频段上发射上行信号，使终端可以灵活选择上行信号发射方式，进一步增强其发射上行信号的能力以及上行数据传输性能。
请参见图1，图1是本公开实施例提供的一种射频电路的结构示意图，应用于终端，射频电路10包括：
第一天线11以及第二天线12；
用于在第一频段上发射信号的第一收发单元13，以及用于在第二频段上发射信号的第二收发单元14；
切换单元15，与所述第一天线11连接，构成用于在第一频段和第二频段上传输信号的第一收发通道；以及，与所述第二天线12连接，构成用于在第一频段和第二频段上传输信号的第二收发通道；
所述切换单元15用于在所述终端的当前网络为第一网络时在第一状态下工作，将所述第一收发单元13和所述第二收发单元14，分别与所述第一收发通道和所述第二收发通道一一对应连通；以及，在所述终端的当前网络为第二网络时在第二状态下工作，将所述第一收发单元13或者所述第二收发单元14，与所述第一收发通道和所述第二收发通道连通。
本公开实施例中，由于第一收发单元13可以在第一频段上发射信号，以及第二收发单元14可以在第二频段上发射信号，而当终端的当前网络为第一网络时，切换单元15将第一收发单元13和第二收发单元14分别与第一收发通道和第二收发通道一一对应连通，从而使终端可以通过第一收发通道和第二收发通道，实现分别在第一频段和第二频段上发射上行信号；而当终端的当前网络为第二网络时，切换单元15将第一收发单元13或者第二收发单元14与第一收发通道和第二收发通道连通，从而使终端可以通过第一收发通道和第二收发通道，实现在第一频段或者第二频段上发射上行信号。
应当说明的是，终端在接收到网络侧设备发送的下行信号之后，终端可 以响应该下行信号，通过其射频电路10同时在第一频段和第二频段上向网络侧设备发送上行信号，即第一频段和第二频段为可实现该射频电路10同时传输上行信号的频段，例如：第一频段和第二频段分别为全球移动通信系统(Global System for Mobile Communication，GSM)网络和长期演进(Long Term Evolution，LTE)网络中的重用(Refarming)频段等。
其中，当上述终端当前网络为第一网络时，射频电路10可以通过第一收发通道和第二收发通道，实现分别在第一频段和第二频段上发射上行信号，则当第一频段为广域覆盖的网络频段，以及第二频段为高数据传输的网络频段，如：第一频段为第三代移动通信技术(3rd-Generation，3G)频段，以及第二频段为LTE频段等，从而可以满足终端发射上行信号时的广域覆盖和高数据传输需求，提升终端的数据传输性能；而当上述终端当前网络为第二网络时，射频电路10可以通过第一收发通道和第二收发通道，实现分别在第一频段或者第二频段上发射上行信号，即通过第一天线和第二天线在第一频段上同时发射上行信号，增强终端的信号发射能力，也可以实现提升终端的数据传输性能。
另外，上述第一网络和上述第二网络可以是网络架构等参数不同的网络，且终端在第一网络下，通过第一收发通道和第二收发通道在两个不同频段上发射上行信号，可以实现增强终端发射上行信号的能力；而终端在第二网络下，通过第一收发通道和第二收发通道在同一频段上发射上行信号，可以实现增强发射上行信号的能力，在此并不进行限定。
本公开实施例中，上述第一收发单元13和第二收发单元14，可以分别在第一频段和第二频段上接收下行信号以及发射上行信号，具体地，所述第一收发单元13包括在第一频段上工作的第一射频收发机131以及第一调制解调器132，所述第一射频收发机131与所述第一调制解调器132和所述切换单元15连接；
所述第二收发单元14包括在第二频段上工作的第二射频收发机141第二调制解调器142，所述第二射频收发机141与所述第二调制解调器142和所述切换单元15连接。
这里，第一调制解调器132可以对第一频段的上行信号进行调制和解调， 以提供第一频段的上行信号需要的波形和数据，而第一射频收发机131可以对第一频段的上行信号进行上下变频和驱动方法，从而实现第一收发单元13在第一频段上发射上行信号；同理，第二调制解调器142可以对第二频段的上行信号进行调制和解调，以提供第二频段的上行信号需要的波形和数据，而第二射频收发机141可以对第二频段的上行信号进行上下变频和驱动方法，从而实现第一收发单元13在第二频段上发射上行信号。
本公开实施例中，上述切换单元可以是任何在第一状态下，将第一收发单元13和第二收发单元14，分别与第一收发通道和第二收发通道一一对应连通；以及，在第二状态下，将第一收发单元13或者第二收发单元14，与第一收发通道和第二收发通道连通的组件。
具体地，如图2a至图2d所示，所述切换单元15包括第一端子151、第二端子152、第三端子153、第四端子154、第一连接臂155以及第二连接臂156，所述第一端子151与所述第一天线11连接；所述第二端子152与所述第二天线12连接；所述第三端子153与所述第一收发单元13连接；所述第四端子154与所述第二收发单元14连接；
当所述第一连接臂155连通所述第一端子151与所述第三端子153，和所述第二连接臂156连通所述第二端子152与所述第四端子154，如图2a所示；或者，第一连接臂155连通所述第二端子152与所述第四端子154，和所述第二连接臂156连通所述第一端子151与所述第三端子153，如图2b所示时，所述切换单元15工作在第一状态；以及，当所述第一连接臂155连通所述第一端子51与所述第三端子153，和第二连接臂156连通所述第二端子152与所述第三端子153，如图2c所示；或者，所述第一连接臂155连通所述第一端子151与所述第四端子154，和所述第二连接臂156连通所述第二端子152与所述第四端子154，如图2d所示时，所述切换单元15工作在第二状态。
这里，上述切换单元15通过两个连接臂在四个端子的动作，可以实现切换单元15在第一状态和第二状态之间的切换，其实现原理与双刀双掷开关类似，则上述切换单元15可以视为改进型的双刀双掷开关，从而结构简单且可靠性高。
应当说明的是，为了能够实现上述切换单元15及时在第一状态和第二状态之间切换，上述射频电路10中可以单独设置控制切换单元15的控制电路。而本公开具体实施例中，上述射频电路还可以包括：
基带处理器16，用于在所述终端的当前网络为所述第一网络时，控制所述切换单元在第一状态下工作；以及，在所述终端的当前网络为所述第二网络时，控制所述切换单元在第二状态下工作。
这里，通过射频电路中的基带处理器实现控制切换单元15的切换状态改变，从而使射频电路的结构简单，且电路可靠性更高。
本公开实施例中，上述第一收发通道和上述第二收发通道，分别是可以在第一频段和第二频段上分别实现对射频电路发送的上行信号进行处理，提高上行信号的质量，从而进一步提升终端上行数据传输性能。
另外，上述基带处理器16还与第一收发单元13和第二收发单元14连接，基带处理器16控制第一收发单元13和第二收发单元14，分别在第一频段和第二频段上收发信号。
具体地，所述射频电路还包括设置于所述第一收发通道的第一前端网络17，以及设置于所述第二收发通道的第二前端网络18：
所述第一前端网络17用于对所述第一收发通道在所述第一频段和所述第二频段上的信号进行处理；
所述第二前端网络18用于对所述第二收发通道在所述第一频段和所述第二频段上的信号进行处理。
其中，上述第一前端网络17和第二前端网络18，分别对第一收发通道和第二收发通道的信号进行处理，可以是对信号进行放大、频率分割和组合以及阻抗匹配等处理，在此并不进行限定。
本公开具体实施例中，所述第一前端网络17和所述第二前端网络18分别包括相互连接的射频功率放大器171以及射频滤波器172，且所述射频功率放大器171用于将所述第一频段和所述第二频段上的信号进行功率放大；所述射频滤波器172用于将所述第一频段和所述第二频段上的信号进行滤波。这样，通过射频功率放大器171和射频滤波器172，可以分别对第一频段和第二频段上的上行信号进行功率放大以及滤波，使上行信号的性能指标 满足射频指标要求。
本公开实施例中，上述终端通过第一收发通道和第二收发通道，在第一频段和第二频段上通过第一天线11和第二天线12发射上行信号，而第一天线11和第二天线12具备收发信号的能力，因此，也可以实现终端通过第一收发通道和第二收发通道，在第一频段和第二频段上接收下行信号。
本公开具体实施例中，所述射频电路10还可以包括设置于所述第一收发通道的第一收发切换开关19，以及设置于所述第二收发通道的第二收发切换开关110；
所述第一收发切换开关19用于控制所述第一收发通道处于在所述第一频段和所述第二频段上发射信号的工作模式；
所述第二收发切换开关110用于控制所述第二收发通道处于在所述第一频段和所述第二频段上发射信号的工作模式。
这样，当终端接收网络侧设备发射的下行信号时，第一收发切换开关19和第二收发切换开关110，可以分别控制第一收发通道和第二收发通道处于在第一频段和第二频段上接收信号的工作模式；而当终端向网络侧设备发射上行信号时，第一收发切换开关19和第二收发切换开关110，可以分别控制第一收发通道和第二收发通道处于在第一频段和第二频段上发射信号的工作模式，从而实现第一收发通道和第二收发通道的工作模式的及时切换，使终端收发信号实现第一天线和第二天线的共享。
应当说明的是，上述射频电路10中可以设置控制单元，以控制第一收发切换开关19和第二收发切换开关110的工作模式的切换。当然，上述第一收发切换开关19的控制端和第二收发切换开关110的控制端也可以分别与上述基带处理器16连接，通过基带处理器16实现控制第一收发切换开关19和第二收发切换开关110的工作模式的切换。
而在5G技术中，为解决上行广域覆盖以及高数据传输的问题，提出了两个解决方案：
方案一中，网络架构采用非独立(Non-StandAlone，NSA)架构，即通过LTE和5G双连接的机制，数据面走LTE通路和5G通路以满足高速率需求，而5G网络的控制面走LTE通路，以保证上行的覆盖性能；
方案二中，网络架构采用独立(StandAlone，SA)架构，即5G网络的控制面和数据面都从5G通路走，另外引入了上行2×2多入多出(Multi In Multi Out，MIMO)机制，或者称为闭环空分多址(closed-loop spatial multiplexing scheme)机制。
在此，为了进一步提升终端上行广域覆盖以及高数据传输的能力，可以通过上述射频电路，实现终端同时支持上述两种架构，即所述第一频段可以为LTE频段；所述第二频段可以为5G频段，如B1频段和n1频段、B3和n3频段或者B41和n41频段，等等。具体如下：
如图3所示，射频电路可以包括基带处理器301、LTE调制解调器302、LTE射频收发机303、5G调制解调器304、5G射频收发机305、切换开关306、两个LTE/5G功率放大器307(Power Amplifier，PA)、两个LTE/5G射频滤波器308、两个LTE/5G收发切换开关309、第一天线310以及第二天线311，其中：
LTE调制解调器302和LTE射频收发机303串联连接于基带处理器301和切换开关306之间，LTE调制解调器302用于对LTE频段的信号进行调制和解调，以及LTE射频收发机303用于对LTE频段的信号上下变频和驱动放大；
5G调制解调器304和5G射频收发机305串联连接于基带处理器301和切换开关306之间，5G调制解调器304用于对5G频段的信号进行调制和解调，以及5G射频收发机305用于对5G频段的信号上下变频和驱动放大；
切换开关306与第一天线310之间，串联接入一LTE/5G功率放大器307、一LTE/5G射频滤波器308以及一LTE/5G收发切换开关309，使切换开关306与第一天线310之间构成第一收发通道；
切换开关306与第二天线311之间，串联接入一LTE/5G功率放大器307、一LTE/5G射频滤波器308以及一LTE/5G收发切换开关309，使切换开关306与第二天线311之间构成第二收发通道；
LTE/5G功率放大器307用于对LTE频段和5G频段上的信号进行功率放大，其中，LTE/5G功率放大器307功率放大后的信号指标应当能满足5G的射频指标要求，因5G的射频指标要求更高，满足5G的射频指标要求的同时， 可以保证满足LTE的射频指标要求；
LTE/5G射频滤波器308，用于对LTE频段和5G频段外信号进行滤波；
LTE/5G收发切换开关309，用于实现其所在收发通道接收下行信号的工作模式和发射上行信号的工作模式的切换；
上述基带处理器301还与切换开关306的控制端连接，以及分别与两个LTE/5G收发切换开关309的控制端连接，通过基带处理器301对切换开关306以及两个LTE/5G收发切换开关309的控制；
上述切换开关306可以采用上述改进的双刀双掷开关，即切换开关306包括信号端子A1、信号端子A2、信号端子A3、信号端子A4以及两个连接臂；
另外，LTE调制解调器302与第一收发通道中的LTE/5G收发切换开关309连接，构成接收和处理NSA网络架构下网络控制信号的NSA接收通路；以及，5G调制解调器与第二收发通道中的LTE/5G收发切换开关309连接，构成接收和处理SA网络架构下网络控制信号的SA接收通路。
其中，上述射频电路的工作过程如下：
终端在待机状态(即未进行信号收发的状态)下，监听网络侧设备下发的信令；
若监听到网络侧设备下发的信令，基带处理器301解调接收的信号，判断当前网络为NSA架构网络或者SA架构网络；
在当前网络为NSA架构网络的情况下，控制第一收发通道和第二收发通道分别在LTE频段和5G频段发射上行信号；
这里，在当前网络为NSA架构网络的情况下，基带处理器301可以控制射频电路中的其他部件进行如下操作：
控制LTE调制解调器302和5G调制解调器304开启，以分别生成LTE频段的调制信号和5G频段的调制信号；
控制LTE射频收发机303和5G射频收发机305开启，以分别对LTE频段的调制信号和5G频段的调制信号进行上变频处理，分别构成LTE频段的上行信号和5G频段的上行信号；
控制切换单元306中的连接臂将信号端子A1和信号端子A3连接，以及 信号端子A2和信号端子A4连接，使得LTE频段的上行信号经过第一收发通道发射，和5G频段的上行信号经过第二收发通道发射；或者，将信号端子A1和信号端子A4连接，以及信号端子A2和信号端子A3连接，使得LTE频段的上行信号经过第二收发通道发射，和5G频段的上行信号经过第一收发通道发射；
控制LTE/5G功率放大器307工作于LTE/5G模式，对LTE/5G功率放大器307所在收发通道的上行信号进行功率放大；
控制LTE/5G收发切换开关309工作在上行信号发射模式，使LTE/5G收发切换开关309从其所在收发通道的天线发射出去。
而在当前网络为SA架构网络的情况下，控制第一收发通道和第二收发通道在LTE频段或者5G频段发射上行信号。
这里，在当前网络为SA架构网络的情况下，基带处理器301可以控制射频电路中的其他部件进行如下操作：
控制5G调制解调器304开启，以生成5G频段的调制信号，同时控制LTE调制解调器302关闭，以节省终端的电能；
控制控制LTE调制解调器302，以对5G频段的调制信号进行上变频处理，构成5G频段的上行信号，同时控制LTE射频收发机303关闭，以节省终端的电能；
控制切换单元306中的连接臂将信号端子A2和信号端子A3连接，以及信号端子A2和信号端子A4连接，使得5G频段的上行信号经过第一收发通道和第二收发通道发射；
控制LTE/5G功率放大器307工作于LTE/5G模式，对LTE/5G功率放大器307所在收发通道的上行信号进行功率放大；
控制LTE/5G收发切换开关309工作在上行信号发射模式，使LTE/5G收发切换开关309从其所在收发通道的天线发射出去。
这样，在当前网络为NSA架构网络的情况下，终端可以实现LTE频段和5G频段双连接下，通过两路收发通道同时发射上行信号的功能；而在当前网络为SA架构网络的情况下，终端可以实现5G频段下，通过两路收发通道同时发射上行信号的功能，提升终端的数据传输性能。
应当说明的是，上述在当前网络为NSA架构网络的情况下，由于5G网络的控制面和数据面都从5G通路走，因而基带处理器301控制切换单元306中的连接臂将信号端子A2和信号端子A3连接，以及信号端子A2和信号端子A4连接，即当所述终端的当前网络为SA架构的网络时，所述射频电路在5G频段上，分别通过所述第一收发通道和所述第二收发通道发射信号。
本公开实施例的射频电路，可以通过第一收发通道和第二收发通道同时发射上行信号，增强终端发射上行信号的能力，提升终端的上行数据传输性能。另外，终端还可以根据其所处的当前网络，在第一收发通道和第二收发通道同时发送上行信号时，通过相同频段或者不同频段发射信号，即在第一网络时，通过第一收发通道和第二收发通道分别在第一频段和第二频段上发射上行信号；而在第二网络时，通过第一收发通道和第二收发通道在第一频段或者第二频段上发射上行信号，使终端可以灵活选择上行信号发射方式，进一步增强其发射上行信号的能力以及上行数据传输性能。
基于上述射频电路，本公开实施例还提供一种终端，包括上述射频电路。
由于终端本身的结构为本领域技术人员所熟知，而射频电路的具体结构在上述实施例中已进行描述，在此不再对终端的具体结构进行赘述。
本公开实施例中，上述终端可以包括：手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digital assistant，简称PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等。
请参见图4，图4是本公开实施例提供的一种信号发射控制方法，应用于上述终端，如图4所示，上述方法包括如下步骤：
步骤401、获取所述终端的当前网络；
步骤402、在所述终端的当前网络为第一网络的情况下，通过第一收发通道和第二收发通道，分别在第一频段和第二频段上发射信号；
步骤403、在所述终端的当前网络为第二网络的情况下，通过第一收发通道和第二收发通道，分别在第一频段或者第二频段上发射信号。
需要说明的是，本实施例作为与上述实施例中射频电路对应的实施方式，其具体的实施方式可以参见上述实施例的相关说明，为了避免重复说明，本 实施例不再赘述，且还可以达到相同有益效果。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以权利要求的保护范围为准。

Claims (11)

  1. 一种射频电路，应用于终端，所述射频电路包括：
    第一天线以及第二天线；
    用于在第一频段上发射信号的第一收发单元，以及用于在第二频段上发射信号的第二收发单元；
    切换单元，与所述第一天线连接，构成用于在第一频段和第二频段上传输信号的第一收发通道；以及，与所述第二天线连接，构成用于在第一频段和第二频段上传输信号的第二收发通道；
    所述切换单元用于在所述终端的当前网络为第一网络时在第一状态下工作，将所述第一收发单元和所述第二收发单元，分别与所述第一收发通道和所述第二收发通道一一对应连通；以及，在所述终端的当前网络为第二网络时在第二状态下工作，将所述第一收发单元或者所述第二收发单元，与所述第一收发通道和所述第二收发通道连通。
  2. 根据权利要求1所述的射频电路，还包括：
    基带处理器，用于在所述终端的当前网络为所述第一网络时，控制所述切换单元在第一状态下工作；以及，在所述终端的当前网络为所述第二网络时，控制所述切换单元在第二状态下工作。
  3. 根据权利要求1所述的射频电路，其中，所述切换单元包括第一端子、第二端子、第三端子、第四端子、第一连接臂以及第二连接臂，所述第一端子与所述第一天线连接；所述第二端子与所述第二天线连接；所述第三端子与所述第一收发单元连接；所述第四端子与所述第二收发单元连接；
    当所述第一连接臂连通所述第一端子与所述第三端子，和所述第二连接臂连通所述第二端子与所述第四端子；或者，第一连接臂连通所述第二端子与所述第四端子，和所述第二连接臂连通所述第一端子与所述第三端子时，所述切换单元工作在第一状态；以及，当所述第一连接臂连通所述第一端子与所述第三端子，和所述第二连接臂连通所述第二端子与所述第三端子；或者，所述第一连接臂连通所述第一端子与所述第四端子，和所述第二连接臂连通所述第二端子与所述第四端子时，所述切换单元工作在第二状态。
  4. 根据权利要求1所述的射频电路，还包括设置于所述第一收发通道的第一前端网络，以及设置于所述第二收发通道的第二前端网络：
    所述第一前端网络用于对所述第一收发通道在所述第一频段和所述第二频段上的信号进行处理；
    所述第二前端网络用于对所述第二收发通道在所述第一频段和所述第二频段上的信号进行处理。
  5. 根据权利要求4所述的射频电路，其中，所述第一前端网络和所述第二前端网络分别包括相互连接的射频功率放大器以及射频滤波器，且所述射频功率放大器用于将所述第一频段和所述第二频段上的信号进行功率放大；所述射频滤波器用于将所述第一频段和所述第二频段上的信号进行滤波。
  6. 根据权利要求1所述的射频电路，还包括设置于所述第一收发通道的第一收发切换开关，以及设置于所述第二收发通道的第二收发切换开关；
    所述第一收发切换开关用于控制所述第一收发通道处于在所述第一频段和所述第二频段上发射信号的工作模式；
    所述第二收发切换开关用于控制所述第二收发通道处于在所述第一频段和所述第二频段上发射信号的工作模式。
  7. 根据权利要求1所述的射频电路，其中，所述第一收发单元包括在第一频段上工作的第一调制解调器以及第一射频收发机，所述第一射频收发机与所述第一调制解调器和所述切换单元连接；
    所述第二收发单元包括在第二频段上工作的第二调制解调器以及第二射频收发机，所述第二射频收发机与所述第二调制解调器和所述切换单元连接。
  8. 根据权利要求1所述的射频电路，其中，所述第一频段为长期演进LTE频段；所述第二频段为第五代移动通信技术5G频段。
  9. 根据权利要求8所述的射频电路，其中，所述第一网络为非独立NSA架构的网络；所述第二网络为独立SA架构的网络，且当所述终端的当前网络为SA架构的网络时，所述射频电路在5G频段上，分别通过所述第一收发通道和所述第二收发通道发射信号。
  10. 一种终端，包括权利要求1至9中任一项所述的射频电路。
  11. 一种信号发射控制方法，应用于如权利要求10所述的终端，所述信 号发射控制方法包括：
    获取所述终端的当前网络；
    在所述终端的当前网络为第一网络的情况下，通过第一收发通道和第二收发通道，分别在第一频段和第二频段上发射信号；
    在所述终端的当前网络为第二网络的情况下，通过所述第一收发通道和所述第二收发通道，分别在所述第一频段或者所述第二频段上发射信号。
PCT/CN2019/086983 2018-06-06 2019-05-15 射频电路、终端及信号发射控制方法 WO2019233253A1 (zh)

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