WO2022116724A1 - Dispositif radiofréquence l-pa mid, système d'émission-réception radiofréquence et dispositif de communication - Google Patents

Dispositif radiofréquence l-pa mid, système d'émission-réception radiofréquence et dispositif de communication Download PDF

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Publication number
WO2022116724A1
WO2022116724A1 PCT/CN2021/125208 CN2021125208W WO2022116724A1 WO 2022116724 A1 WO2022116724 A1 WO 2022116724A1 CN 2021125208 W CN2021125208 W CN 2021125208W WO 2022116724 A1 WO2022116724 A1 WO 2022116724A1
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WIPO (PCT)
Prior art keywords
radio frequency
power amplifier
antenna
mid device
port
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PCT/CN2021/125208
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English (en)
Chinese (zh)
Inventor
王国龙
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Oppo广东移动通信有限公司
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Publication of WO2022116724A1 publication Critical patent/WO2022116724A1/fr

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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
    • 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
    • H04B1/38—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
    • H04B1/44—Transmit/receive switching

Definitions

  • the present application relates to the field of radio frequency technology, and in particular, to a radio frequency L-PA Mid device, a radio frequency transceiver system, and a communication device.
  • the communication device needs to support more frequency bands, such as the B41 frequency band and the B7 frequency band in the high frequency band.
  • a broadband power amplifier is set in the RF front-end module to realize the transmission and amplification of multiple RF signals in the high frequency band.
  • the working frequency band of the high frequency broadband power amplifier is too wide. Increasing the supply voltage of the broadband power amplifier will result in excessive power consumption of the broadband power amplifier.
  • a radio frequency L-PA Mid device a radio frequency transceiver system, and a communication device are provided.
  • An embodiment of the present application provides a radio frequency L-PA Mid device, the radio frequency L-PA Mid device is configured with a transmitting port and an antenna port, and the radio frequency L-PA Mid device includes:
  • the first transmitting circuit includes a first power amplifier, the input end of the first power amplifier is connected to the transmitting port, and is used for amplifying the first radio frequency signal of the high frequency band;
  • the second transmitting circuit includes a second power amplifier, the input end of the second power amplifier is connected to the transmitting port, and is used for amplifying a plurality of second radio frequency signals in the high frequency band;
  • a multi-channel selection switch the multiple first ends of the multi-channel selection switch are respectively connected with the output ends of the first power amplifier and the second power amplifier, and the output end of the multi-channel selection switch is connected with the antenna port is used to selectively turn on the radio frequency channel between the first power amplifier, the second power amplifier and the antenna port, wherein the formats of the first radio frequency signal and the second radio frequency signal are different.
  • An embodiment of the present application provides a radio frequency transceiver system, including:
  • a radio frequency transceiver connected to the transmitting port of the radio frequency L-PA Mid device
  • the antenna is correspondingly connected to the antenna port of the radio frequency L-PA Mid device.
  • An embodiment of the present application provides a radio frequency transceiver system, including:
  • the above-mentioned radio frequency L-PA Mid device is denoted as the first radio frequency L-PA Mid device;
  • the second radio frequency L-PA Mid device is configured with a radio frequency antenna port for supporting the amplification and filtering of the reception and transmission of multiple fourth radio frequency signals in the low frequency band;
  • an antenna group including a first antenna, a second antenna, a third antenna and a fourth antenna
  • the diversity receiving module is configured with a low frequency antenna port, a medium and high frequency antenna port and a medium and high frequency transceiver port, which is used to support the diversity receiving and amplifying processing of multiple radio frequency signals of the low frequency band, the medium frequency band and the high frequency band;
  • a radio frequency transceiver respectively connected with the first radio frequency L-PA Mid device, the second radio frequency L-PA Mid device, and the diversity receiving module;
  • a switch module respectively connected to the first radio frequency L-PA Mid device, the second radio frequency L-PA Mid device, and the diversity receiving module;
  • a combiner module respectively connected to the switch module, the diversity receiving module, the first antenna, the second antenna, the third antenna, and the fourth antenna;
  • the radio frequency transceiver system is used to support the 1T4R function of channel sounding reference signals of multiple radio frequency signals in the low frequency band and the mid frequency band.
  • An embodiment of the present application provides a communication device, including:
  • Fig. 1 is one of the structural representations of the radio frequency L-PA Mid device of an embodiment
  • Fig. 2 is the second structural schematic diagram of the radio frequency L-PA Mid device of an embodiment
  • FIG. 3 is a schematic diagram of the relationship between input power and output power of a power amplifier according to an embodiment
  • FIG. 4 is a third schematic structural diagram of a radio frequency L-PA Mid device according to an embodiment
  • FIG. 5 is the fourth schematic diagram of the structure of the radio frequency L-PA Mid device of an embodiment
  • Fig. 6 is the fifth structural schematic diagram of the radio frequency L-PA Mid device of an embodiment
  • FIG. 7 is a sixth schematic structural diagram of a radio frequency L-PA Mid device according to an embodiment
  • Fig. 9 is the eighth structural schematic diagram of the radio frequency L-PA Mid device of an embodiment
  • FIG. 10 is a schematic structural diagram of a radio frequency transceiver system according to an embodiment
  • FIG. 11 is a second schematic structural diagram of a radio frequency transceiver system according to an embodiment
  • FIG. 12 is a third schematic structural diagram of a radio frequency transceiver system according to an embodiment
  • FIG. 13 is a fourth schematic structural diagram of a radio frequency transceiver system according to an embodiment
  • FIG. 14 is a fifth schematic structural diagram of a radio frequency transceiver system according to an embodiment
  • FIG. 15 is a sixth schematic structural diagram of a radio frequency transceiver system according to an embodiment.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plural means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.
  • severeal means at least one, such as one, two, etc., unless expressly and specifically defined otherwise.
  • the radio frequency transceiver system involved in the embodiments of the present application can be applied to a communication device with a wireless communication function.
  • UE User Equipment
  • MS Mobile Station
  • Network devices may include base stations, access points, and the like.
  • an embodiment of the present application provides a radio frequency L-PA Mid device.
  • the RF L-PA Mid device can be understood as a power amplifier module (Power Amplifier Modules including Duplexers With LNA, antenna) with a built-in low noise amplifier.
  • the radio frequency L-PA Mid device can support the reception and transmission of a first radio frequency signal and a plurality of second radio frequency signals in a high frequency band, and a plurality of third radio frequency signals in a middle frequency band.
  • the formats of the first radio frequency signal and the second radio frequency signal are different.
  • the first radio frequency signal may be an FDD format, for example, a 4G signal in the B7 frequency band.
  • the second radio frequency signal may be in a TDD format.
  • the plurality of second radio frequency signals may include 4G signals in frequency bands such as B40, B41, and B38.
  • the plurality of third radio frequency signals in the intermediate frequency band may include 4G signals in frequency bands such as B1, B3, B39, and B66. Therefore, the radio frequency L-PA Mid device in the embodiment of the present application can also be referred to as a middle and high frequency power amplifier module with a built-in low noise amplifier (Middle and High Band PA Mid With LNA, MHB L-PA Mid).
  • the RF L-PA Mid device can be understood as a package structure.
  • the RF L-PA Mid device is configured with transmit port 4G HB RFIN (or, 4G HB0 RFIN, 4G HB1 RFIN) and antenna port ANT1.
  • the transmitting port 4G HB RFIN (or, 4G HB0 RFIN, 4G HB1 RFIN) and the antenna port ANT1 configured in the device can be understood as the RF pin terminal of the RF L-PA Mid device, which is used to connect with various external devices.
  • the transmitting port 4G HB RFIN can be used to connect with the radio frequency transceiver, and is used to receive the first radio frequency signal and the second radio frequency signal of the high frequency band sent by the radio frequency transceiver.
  • the antenna port ANT1 is used to connect with the antenna, and is used to transmit the first radio frequency signal and the second radio frequency signal processed by the radio frequency L-PA Mid device to the antenna, or, the first radio frequency signal and the second radio frequency signal of the high frequency band received by the antenna The RF signal is transmitted to the RF L-PA Mid device.
  • the radio frequency L-PA Mid device includes a first transmitting circuit 110 , a second transmitting circuit 120 and a multi-channel selection switch 130 .
  • the first transmitting circuit 110 may specifically include a first power amplifier 111 .
  • the input end of the first power amplifier 111 is connected to the transmitting port 4G HB RFIN (or 4G HB0 RFIN), and the output end of the first power amplifier 111 is connected to the first end of the multi-channel selection switch 130, wherein the first power amplifier 111 uses for amplifying the first radio frequency signal in the high frequency band (for example, the B7 frequency band).
  • the second transmitting circuit 120 may specifically include a second power amplifier 121, the input end of the second power amplifier 121 is connected to the transmit port 4G HB RFIN (or 4G HB1 RFIN), and the output end of the second power amplifier 121 is connected to the multi-channel selection switch 130 is connected to the first end, wherein the second power amplifier 121 is used to amplify a plurality of second radio frequency signals (eg, B40 and B41 frequency bands) in the high frequency band.
  • the output end of the multi-channel selection switch 130 is connected to the antenna port ANT1 for selectively conducting the radio frequency channels between the first power amplifier 111, the second power amplifier 121 and the antenna port ANT1 respectively.
  • the input end of the first power amplifier 111 and the input end of the second power amplifier 121 can both be connected to the same transmit port 4G HB RFIN.
  • the input end of the first power amplifier 111 and the input end of the second power amplifier 121 may also be respectively connected to the two transmit ports 4G HB0 RFIN and 4G HB1 RFIN respectively.
  • Power amplifier efficiency can be defined as the ratio of the difference between the output signal power and the input signal power to the power consumption of the DC power supply, as shown in formula (1):
  • PAE represents the efficiency of the power amplifier
  • Pout represents the output power of the power amplifier
  • Pin represents the input power of the power amplifier
  • Pdc represents the DC power (proportional to the DC supply voltage).
  • the two key indicators of DC power consumption are output power and linearity. Take Figure 3 as an example to illustrate their definitions and relationships.
  • the output power Pout and the input power Pin have an ideal linear relationship; when the input power exceeds Pe, the relationship between Pout and Pin is no longer linear, but a nonlinear relationship.
  • the relationship between the two will change along the trend of curve B, and curve A is an extension of the trend under the ideal linear relationship; when the difference between straight line A and curve B reaches 1dB, the power output point at this time is called. is the 1dB compression point, and the input and output power compression points are marked as Pin1dB and Pout1dB, respectively. Therefore, the output power Pout is closely related to the linearity of the power amplifier device.
  • the high-frequency 4G signal of the high-frequency band covers 2300-2690 MHz, and it has a bandwidth of about 390 MHz.
  • BWrate is the bandwidth ratio
  • BW is the bandwidth
  • CenterFreq is the center frequency band.
  • the bandwidth ratio of the power amplifier is higher than 15%, it is regarded as a broadband power amplifier.
  • ACLR Adjacent Channel Leakage Ratio
  • the first power amplifier 111 and the second power amplifier 121 are respectively correspondingly set for the first radio frequency signal and the second radio frequency signal of different formats of the high frequency band. That is, the first power amplifier 111 only works for the first radio frequency signal in the B7 frequency band of the FDD standard, and the second power amplifier 121 only works for the second radio frequency signal in the B40 and B41 frequency bands of the TDD standard, so that the first power can be shortened.
  • the working bandwidth of the amplifier 111 can ensure that the impedance load of the first power amplifier 111 is adjusted to the optimal position, which greatly improves the working efficiency of the first power amplifier 111.
  • the DC power supply voltage of the first power amplifier 111 can be greatly reduced, thereby achieving the purpose of reducing the total power consumption of the radio frequency L-PA Mid device.
  • the first radio frequency signal is a 4G signal in the B7 frequency band as an example for description.
  • the first power amplifier 111 of the radio frequency L-PA Mid device only works for the radio frequency signal of the B7 frequency band, which can directly reduce the working bandwidth from the wide 390MHz to 70MHz, which can ensure that the impedance load of the internal first power amplifier 111 is adjusted to the maximum.
  • the optimal location can greatly improve the working efficiency of the first power amplifier 111, thereby reducing the total power consumption of the radio frequency L-PA Mid device. It can be seen from the formula (1) that the power amplifier efficiency has nothing to do with the frequency band, especially for the frequency band where both B3 and B7 are lower than 3GHz, the difference is very small.
  • the power consumption data of B3 is analogous to B7, and the specific power consumption data is shown in Table 3.
  • the number of transmit ports is two, which are respectively denoted as the first transmit port 4G HB1 RFIN and the second transmit port 4G HB0 RFIN.
  • the input end of the first power amplifier 111 is connected with the first transmitting port 4G HB1 RFIN
  • the input end of the second power amplifier 121 is connected with the second transmitting port 4G HB0 RFIN. That is, the first transmission port 4G HB1 RFIN can be used to receive the first radio frequency signal, and directly input the received first radio frequency signal into the first power amplifier 111, and the first power amplifier 111 performs power amplification processing on the first radio frequency signal. .
  • the radio frequency L-PA Mid device further includes a first switch unit 140.
  • the first end of the first switch unit 140 is connected to the transmitting port 4G HB RFIN, the second end of the first switch unit 140 is connected to the input end of the first power amplifier 111, and the other second end of the first switch unit 140 is connected to the input end of the first power amplifier 111.
  • the terminal is connected to the input terminal of the second power amplifier 121 .
  • the first switch unit 140 may be a single pole double throw switch (SPDT switch).
  • the single terminal of the SPDT switch is used as the first terminal of the first switch unit 140 , and the two selection terminals of the SPDT switch are used as the two second terminals of the first switch unit 140 .
  • the single terminal of the SPDT switch is connected to the transmit port 4G HB RFIN, a selection terminal of the SPDT switch is connected to the input terminal of the first power amplifier 111, and the other selection terminal of the SPDT switch is connected to the input terminal of the second power amplifier 121. connect.
  • the transmitting port 4G HB RFIN can be used to receive the first radio frequency signal and the second radio frequency signal output by the radio frequency transceiver, and input the first radio frequency signal to the first power amplifier 111 through the first switch unit 140, and pass the first radio frequency signal to the first power amplifier 111.
  • the first switch unit 140 inputs the second radio frequency signal to the second power amplifier 121 .
  • the radio frequency L-PA Mid device shown in FIG. 2 can be used to realize switching between the first power amplifier 111 and the second power amplifier 121 by adding a first switch unit 140 .
  • the first radio frequency signal in the B7 frequency band is amplified by the first power amplifier 111
  • the second radio frequency signal in the B41 frequency band is amplified by the second power amplifier 121 .
  • the SPDT switch is switched from the first power amplification path to the second power amplifier 121 .
  • the TX 3/4G MB connection ports that is, the transmission port 4G HB RFIN
  • the radio frequency L-PA Mid device and the radio frequency transceiver can be reduced from two to one, which can Save RF transceiver interface resources.
  • the first transmitting circuit 110 further includes a first filtering unit 112 .
  • the first filtering unit 112 is respectively connected to the output end of the first power amplifier 111 and the first end of the multi-channel selection switch 130, and is used for filtering the received first radio frequency signal.
  • the first radio frequency signal filtered and processed by the first filtering unit 112 may be a 4G signal in the B7 frequency band without clutter.
  • the first filtering unit 112 may include a filter that only allows signals in the B7 frequency band to pass through, that is, the first filtering unit 112 may implement filtering processing on the B7 frequency band, so as to output the B7 frequency band without clutter. frequency band signal.
  • the second transmitting circuit 120 further includes a second switching unit 122 and a plurality of second filtering units 123 .
  • the second switch unit 122 includes a first end and a plurality of second ends, wherein the first end of the second switch unit 122 is connected to the output end of the second power amplifier 121 , and each second end of the second switch unit 122 is connected to the output end of the second power amplifier 121 . Both terminals are connected to the multi-channel selection switch 130 via a second filter unit 123 .
  • each second filtering unit 123 is used for filtering the received second radio frequency signal, and the frequency band of the second radio frequency signal output by each second filtering unit 123 is different.
  • the corresponding second filtering unit 123 can be determined according to the number of the second radio frequency signals.
  • two second filtering units 123 are arranged to filter the two second radio frequency signals B40 and B41 respectively, so as to output the signals in the B40 and B41 frequency bands without clutter.
  • the radio frequency L-PA Mid device is configured with a third transmit port 4G MB RFIN and two antenna ports ANT1, ANT2.
  • the RF L-PA Mid device includes a third transmitting circuit. Wherein, the input end of the third transmitting circuit is connected to the third transmitting port 4G MB RFIN, and the output end of the third transmitting circuit is connected to the first end of the multi-channel selection switch 130 for supporting multiple third radio frequencies in the middle frequency band Amplification and filtering of the signal.
  • the plurality of third radio frequency signals in the intermediate frequency band include at least 4G signals in frequency bands such as B1, B3, B39, and B34.
  • the two antenna ports ANT1 and ANT2 may be denoted as the first antenna port ANT1 and the second antenna port ANT1, and the multi-channel selection switch 130 includes two second ends, which are respectively connected with the two antenna ports ANT1 and ANT2.
  • One-to-one connection That is, the multiple first ends of the multi-channel selection switch 130 can be respectively connected to the first filter of the first transmitting circuit 110, the plurality of second filters of the second transmitting circuit 120, and the third transmitting circuit.
  • One second end of the switch 130 is connected to the first antenna port ANT1, and the other second end of the multi-channel selection switch 130 is connected to the second antenna port ANT1.
  • the multi-channel selection switch 130 can be used to selectively turn on the transmission paths of any two of the first radio frequency signal, the second radio frequency signal and the third radio frequency signal, so as to output to the first antenna port ANT1 and the second antenna port ANT1 to The corresponding antenna is used to realize the transmission of the dual-band signal by the radio frequency transceiver device.
  • the third transmitting circuit may include a third power amplifier 151 , a third switching unit 152 and a plurality of third filtering units 153 .
  • the input end of the third power amplifier 151 is connected to the third transmitting port 4G MB RFIN for supporting the power amplification of a plurality of received third radio frequency signals
  • the output end of the third power amplifier 151 is connected to the third switch unit 152
  • the first end of the third switch unit 152 is connected to the first end of the multi-channel selection switch 130 through a corresponding third filter unit 153 .
  • the number of the third filtering units 153 can be set according to the number of the third radio frequency signals supported by the radio frequency L-PA Mid device.
  • the third radio frequency signal includes four frequency bands of B1, B3, B34, and B39
  • four third filtering units 153 may be correspondingly set, so as to correspondingly output the frequency bands of B1, B3, B34, and B39 without clutter.
  • the third radio frequency signal may be relatively close, and they may share the same third filtering unit 153 .
  • the transmission link path of the B7 frequency band is as follows:
  • the B7 frequency band signal enters the radio frequency L-PA Mid device through the first transmission port 4G HB1 RFIN ⁇ the first power amplifier 111 ⁇ the first filtering unit 112 ⁇ the multi-channel selection switch 130 ⁇ the antenna port ANTI.
  • the transmission link path of the B7 frequency band is as follows:
  • the B7 frequency band signal enters the radio frequency L-PA Mid device through the first transmission port 4G HB1 RFIN ⁇ the second switch unit 140 ⁇ the first power amplifier 111 ⁇ the first filter unit 112 ⁇ the multi-channel selection switch 130 ⁇ the antenna port ANTI.
  • the transmit chain path of the B7 frequency band of the RF L-PA Mid device shown in Figure 5 is reduced by one switch corresponding to the transmit chain path of the RF L-PA Mid device shown in Figure 4, which can be reduced by 0.5dB
  • the DC power supply voltage of the first power amplifier 111 can be greatly reduced, thereby achieving the purpose of reducing the total power consumption of the RF L-PA Mid device.
  • a first switch unit 140 to the radio frequency L-PA Mid device as shown in FIG.
  • the TX 3/4G MB connection port (that is, the transmitting port) between the radio frequency L-PA Mid device and the radio frequency transceiver can be connected 4G HB RFIN), which is reduced from 2 to 1, which can save RF transceiver interface resources compared to the RF L-PA Mid device shown in Figure 4.
  • the first filtering unit 112 , the second filtering unit 123 , and the third filtering unit 153 may each include a filter, and the filter only allows radio frequency signals in a preset frequency band to pass.
  • the filter may be a band-pass filter, and the band-pass range of the filter may be associated with the frequency range of the filtered radio frequency signal.
  • the specific components of each filter unit are not further limited, and are not limited to the examples in the embodiments of the present application.
  • the RF L-PA Mid device is configured with multiple receiving ports (eg, LNA OUT1, LNA OUT2, LNA OUT3), and the RF L-PA Mid device includes a receiving circuit .
  • the input end of the receiving circuit is correspondingly connected to the multiple first ends of the multi-channel selection switch 130, and the output end of the receiving circuit is correspondingly connected to the multiple receiving ports LNA OUT1, which are used to support the first radio frequency signal, the multiple Amplification and filtering of two radio frequency signals and a plurality of third radio frequency signals.
  • the receiving circuit may include multiple low noise amplifiers 161 , multiple fourth filtering units 162 , multiple fifth filtering units 163 and multiple radio frequency switches 164 .
  • the number of the receiving ports LNA OUT1 is equal to the number of the low noise amplifiers 161 .
  • An output end of a low noise amplifier 161 is correspondingly connected to a receiving port LNA OUT1.
  • the input end of the low noise amplifier 161 can be connected to the multi-channel selection switch 130 via the radio frequency switch 164 and the fourth filtering unit 162 to implement filtering and amplifying processing of the received radio frequency signal of any high frequency band.
  • the output end of a low noise amplifier 161 is connected to the receiving port LNA OUT1, and the input end of the low noise amplifier 161 can be connected to the multi-channel selection switch 130 via the radio frequency switch 164 and the fifth filtering unit 163, so as to realize the reception of any intermediate frequency band.
  • the fourth filtering unit 162 only allows radio frequency signals in frequency bands B7, B40, and B41 to pass
  • the fifth filtering unit 163 only allows radio frequency signals in frequency bands B1, B3, B39, and B34 to pass.
  • the fourth filtering unit 162 which only allows radio frequency signals of frequency bands B40 and B41 to pass, may be shared with the second filtering unit 123 .
  • the radio frequency L-PA Mid device is configured with three receiving ports LNA OUT1, LNA OUT2, LNA OUT3, and the receiving circuit includes three low noise amplifiers 161, three radio frequency switches 164, a fourth filtering unit 162 and A plurality of fifth filtering units 163 .
  • the three low-noise amplifiers 161 may be designated as the first low-noise amplifier, the second low-noise amplifier, and the third low-noise amplifier; the three radio frequency switches 164 may be designated as the first radio frequency switch, the second radio frequency switch, the third radio frequency switch RF switch.
  • the output end of the first low noise amplifier is connected to the first receiving port LNA OUT1
  • the input end of the first low noise amplifier is connected to the first end of the first radio frequency switch
  • the plurality of second radio frequency switches of the first radio frequency switch are connected
  • the terminals are respectively connected to a plurality of fourth filtering units 162 . That is, the first low noise amplifier can be used to amplify the first radio frequency signal and the second radio frequency signal of any high frequency band selected and output by the first radio frequency switch.
  • the output end of the second low noise amplifier is connected to the second receiving port LNA OUT2, the input end of the second low noise amplifier is connected to the first end of the second radio frequency switch, and the second ends of the second radio frequency switch are respectively connected to Part of the fifth filtering unit 163 is connected.
  • the output end of the third low noise amplifier is connected to the third receiving port LNA OUT3, the input end of the third low noise amplifier is connected to the first end of the third radio frequency switch, and the plurality of second ends of the third radio frequency switch are respectively connected to The remaining fifth filtering unit 163 is connected. That is, the second low-noise amplifier and the third low-noise amplifier can be used to amplify the received third radio frequency signals in the intermediate frequency band.
  • the radio frequency L-PA Mid device is further configured with a plurality of auxiliary transmit ports TX, a plurality of auxiliary transmit and receive ports TRX and a plurality of auxiliary transmission ports for connecting with an external switching circuit Receive port RX.
  • the radio frequency L-PA Mid device further includes a fourth switch unit 170, wherein the multiple auxiliary transmit ports TX are respectively connected with the second transmit circuit 120, the second switch unit 122 and the third switch unit 152, and the multiple auxiliary transmit/receive ports TRX are connected through the The fourth switch unit 170 is connected to the multi-channel selection switch 130; the multiple auxiliary receiving ports RX are connected to the receiving circuit.
  • the auxiliary transmit port 4G HB RFINTX is used to transmit signals in the B66, B25 or B30 frequency bands. That is, the transmission and reception paths of signals in the three frequency bands of B66, B25 and B30 include external switching circuits. It should be noted that when the filter units of the three frequency bands B66, B25 and B30 are plugged in, the second transmitting circuit 120, the third transmitting circuit 120 and the respective low noise amplifiers, switching units, and radio frequency switches of the receiving circuit can also be used. Make adaptive adjustments. Illustratively, the transceiver control of the B66 signal is taken as an example for description.
  • the transmission path of the B66 signal transmission port 4G MB RFIN ⁇ third power amplifier 151 ⁇ third switch unit 152 ⁇ auxiliary transmit port B66TX ⁇ switch circuit (not shown in the figure) ⁇ auxiliary transceiver port B66TRX ⁇ fourth switch unit 170 ⁇ Multi-channel selection switch 130 ⁇ Antenna port ANT1.
  • the receiving path of the B66 signal antenna port ANT1 ⁇ multi-channel selection switch 130 ⁇ fourth switch unit 170 ⁇ auxiliary transceiver port B66TRX ⁇ switching circuit ⁇ auxiliary receiving port B66RX ⁇ third RF switch ⁇ third low noise amplifier ⁇ receiving port LNA OUT4 .
  • the radio frequency L-PA Mid device further includes a fifth switch unit 165.
  • the multiple first ends of the fifth switch unit 165 are connected to the multiple receive ports LNA OUT1LNA OUT in a one-to-one correspondence, and the fifth switch unit 165
  • the plurality of second ends of 1 are connected to the output ends of the plurality of low noise amplifiers 161 in a one-to-one correspondence.
  • the receiving circuit includes four low noise amplifiers 161 in total, it can be configured with four receiving ports LNA OUT1, LNA OUT2, LNA OUT3, and LNA OUT4.
  • the fifth switch unit 165 can be a 4P4T switch to simultaneously The four-way signals output by the four low-noise amplifiers 161 are received, thereby improving the output flexibility of the received multiple radio frequency signals.
  • the radio frequency L-PA Mid device in any of the above embodiments further includes a first control unit 171 and a second control unit 172.
  • the first control unit 171 is respectively connected to each switch and the power amplifier, and is used to control the on-off of each switch, and is also used to control the working state of the power amplifier.
  • the second control unit 172 is connected to each of the low-noise amplifiers 161 respectively, and is used for adjusting the gain coefficient of each of the low-noise amplifiers 161 .
  • the low noise amplifier 161 is an amplifier device with adjustable gain. Exemplarily, the low noise amplifier 161 has 8 gain levels.
  • the first control unit 171 and the second control unit 172 may be mobile industry processor interface (Mobile Industry Processor Interface, MIPI) - radio frequency front-end control interface (RF Front End Control Interface, RFFE) control unit, the control method It conforms to the control protocol of the RFFE bus.
  • MIPI Mobile Industry Processor Interface
  • RFFE radio frequency front-end control interface
  • the RF L-PA Mid device is also configured with the clock signal input pin CLK, the unidirectional/bidirectional data signal input or the bidirectional pin SDATAS, reference voltage pin VIO, etc.
  • the radio frequency L-PA Mid device is further configured with a 2G high frequency transmit port 2G HB IN.
  • the 2G high-frequency transmission port 2G HB IN is connected to a first end of the multi-channel selection switch 130 for receiving 2G high-frequency signals, and is switched and selected by the multi-channel selection switch 130 to pass through the corresponding antenna port ANT1 or ANT2 output.
  • the RF L-PA Mid device is further configured with a coupling output port CPLOUT, and the RF L-PA Mid device further includes a coupling circuit 180 disposed in the RF path between the multi-channel selection switch 130 and the antenna port is used for coupling the radio frequency signal in the radio frequency channel, so as to output the coupling signal through the coupling output port CPLOUT.
  • the coupled signal can be used to measure the forward coupled power and the reverse coupled power of any radio frequency signal.
  • the coupling circuit 180 includes an input terminal, an output terminal and a coupling terminal. The input end of the coupling circuit 180 is coupled to the multi-channel selection switch 130, the output end of the coupling circuit 180 is coupled to the round-emitting port, and the coupling end is used to couple the intermediate frequency signal received by the input end and output the coupled signal, wherein, The coupled signal includes a forward coupled signal and a reverse coupled signal.
  • the forward power information of the low frequency signal can be detected; based on the reverse coupling signal output by the coupling end, the reverse power information of the low frequency signal can be detected correspondingly, and the The detection mode is defined as the reverse power detection mode.
  • an embodiment of the present application further provides a radio frequency transceiver system.
  • the radio frequency transceiver system may include the radio frequency L-PA Mid device 10, the radio frequency transceiver 20 and at least one antenna as in any of the above embodiments.
  • each antenna port ANT1 in the radio frequency L-PA Mid device 10 is correspondingly connected to an antenna Ant.
  • the radio frequency transceiver system may include an antenna Ant1 connected to the antenna port ANT1; when the radio frequency L-PA Mid device 10 is configured with an antenna port ANT1 When two antenna ports ANT1 and ANT2 are configured, the radio frequency transceiver system may include two antennas Ant1 and Ant2 respectively connected to the two antenna ports ANT1 and ANT2 in a one-to-one correspondence.
  • the first power amplifier 111 and the second power amplifier 121 are respectively set for the first radio frequency signal and the second radio frequency signal of different formats in the high frequency band. . That is, the first power amplifier 111 only works for the first radio frequency signal in the B7 frequency band of the FDD standard, and the second power amplifier 121 only works for the second radio frequency signal in the B40 and B41 frequency bands of the TDD standard, so that the first power can be shortened.
  • the working bandwidth of the amplifier 111 can ensure that the impedance load of the first power amplifier 111 is adjusted to the optimal position, which greatly improves the working efficiency of the first power amplifier 111.
  • the DC power supply voltage of the first power amplifier 111 can be greatly reduced, thereby achieving the purpose of reducing the total power consumption of the radio frequency L-PA Mid device.
  • an embodiment of the present application further provides a radio frequency transceiver system.
  • the radio frequency transceiver system may include an antenna group 30 , a first radio frequency L-PA Mid device 11 , a second radio frequency L-PA Mid device 12 , a radio frequency transceiver 20 , a diversity receiving module 40 , and a switch module 50 and combiner module 60 .
  • the antenna group 30 includes a first antenna Ant1, a second antenna Ant2, a third antenna Ant3 and a fourth antenna Ant4.
  • the first antenna Ant1, the second antenna Ant2, the third antenna Ant3, and the fourth antenna Ant4 are all antenna Ants capable of supporting the 4G frequency band and the 5G NR frequency band.
  • the first antenna Ant1, the second antenna Ant2, the third antenna Ant3, and the fourth antenna Ant4 may be directional antennas Ant, and may also be non-directional antennas Ant.
  • the first antenna Ant1, the second antenna Ant2, the third antenna Ant3 and the fourth antenna Ant4 may be formed using any suitable type of antenna.
  • the first antenna Ant1, the second antenna Ant2, the third antenna Ant3 and the fourth antenna Ant4 may include antennas with resonant elements formed from the following antenna structures: array antenna structures, loop antenna structures, patch antenna structures, slot antennas At least one of a structure, a helical antenna structure, a strip antenna, a monopole antenna, a dipole antenna, and the like. Different types of antennas can be used for different frequency band combinations of RF signals.
  • the first radio frequency L-PA Mid device 11 is used to support transceiving and processing of multiple radio frequency signals.
  • the first radio frequency L-PA Mid device 11 may be any of the above-mentioned radio frequency L-PA Mid devices capable of supporting the sending and receiving processing of multiple radio frequency signals of medium and high frequency.
  • the second radio frequency L-PA Mid device 12 is configured with a radio frequency antenna port ANT1 for supporting the amplification and filtering of the reception and transmission of a plurality of fourth radio frequency signals in the low frequency band.
  • the second radio frequency L-PA Mid device 12 may also be a radio frequency L-PA Mid device, that is, a power amplifier module with a built-in low noise amplifier 161 .
  • the second radio frequency L-PA Mid device 12 can also be referred to as a low-frequency power amplifier module with a built-in low-noise amplifier 161, that is, an L-PA Mid device.
  • the diversity receiving module 40 is configured with a low frequency antenna port LB ANT, a medium and high frequency antenna port MB ANT, and a medium and high frequency transceiver port, which is used to support diversity receiving and amplifying processing of multiple radio frequency signals in the low frequency band, the medium frequency band and the high frequency band.
  • the diversity receiving module 40 integrates multiple low-noise amplifiers, filters, switches and other components.
  • the multiple radio frequency signals of the low frequency band, the middle frequency band and the high frequency band may at least include B4, B66, B1, B25, B3, B39, B30, B7, B40, B41, B8, B26, B20, B28A, B28B, B12, Signals in frequency bands such as B17.
  • the switch module 50 is connected to the first radio frequency L-PA Mid device 11, the second radio frequency L-PA Mid device 12, and the diversity receiving module 40, respectively.
  • the combiner module 60 is respectively connected to the switch module 50 , the diversity receiving module 40 , the first antenna Ant1 , the second antenna Ant2 , the third antenna Ant3 and the fourth antenna Ant4 .
  • the switch module 50 includes: a sixth switch unit 510 , a seventh switch unit 520 and an eighth switch unit 530 .
  • the combiner module 60 includes a first combiner 610 , a second combiner 620 , a third combiner 630 and a fourth combiner 640 .
  • the first end of the sixth switch unit 510 is connected to the antenna port ANT1LB ANT of the second radio frequency L-PA Mid device 12; the two first ends of the seventh switch unit 520 are respectively connected to the first radio frequency L-PA Mid device 11
  • the first antenna port ANT1 and the second antenna port ANT2 are connected in one-to-one correspondence.
  • a first end of the first combiner 610 is connected to a second end of the sixth switch unit 510, another first end of the first combiner 610 is connected to a second end of the seventh switch unit 520, The second end of a combiner 610 is connected to the first antenna Ant1; a first end of the second combiner 620 is connected to the other second end of the sixth switch unit 510 via the eighth switch unit 530, respectively, and the low frequency antenna port LB ANT is connected, the other first end of the second combiner 620 is connected to the mid-high frequency antenna port MB ANT, the second end of the second combiner 620 is connected to the second antenna Ant2; The first end is connected to another second end of the sixth switch unit 510 , the other first end of the third combiner 630 is connected to the other second end of the seventh switch unit 520 , and the first end of the third combiner 630 is connected to the second end of the seventh switch unit 520 .
  • the two ends are connected to the third antenna Ant3; a first end of the fourth combiner 640 is connected to another second end of the sixth switch unit 510, and the other first end of the fourth combiner 640 is connected to the seventh switch Another second end of the unit 520 is connected, and the second end of the fourth combiner 640 is connected to the fourth antenna Ant4; another second end of the seventh switch unit 520 is connected to the medium and high frequency transceiver port MHB TRX1 of the diversity receiving module 40.
  • the transmit link path and receive link path of the B7 frequency band are as follows:
  • Receive link path first antenna Ant1 ⁇ first combiner 610 ⁇ seventh switch unit 520 ⁇ Path2 ⁇ antenna port ANT2 ⁇ contact 2 of multi-channel selection switch 130 ⁇ contact 8 ⁇ fourth filter unit 162 ⁇ radio frequency Switch 164 ⁇ low noise amplifier 161 ⁇ fifth switch unit 165 ⁇ receiving port LNA OUT2.
  • the transmission link path of the B7 frequency band is as follows:
  • Receive link path first antenna Ant1 ⁇ first combiner 610 ⁇ seventh switch unit 520 ⁇ Path2 ⁇ antenna port ANT2 ⁇ contact 2 of multi-channel selection switch 130 ⁇ contact 8 ⁇ fourth filter unit 162 ⁇ radio frequency Switch 164 ⁇ low noise amplifier 161 ⁇ fifth switch unit 165 ⁇ receiving port LNA OUT2.
  • the first power amplifier 111 and the second power amplifier 121 can be respectively set for the first radio frequency signal and the second radio frequency signal of different formats in the high frequency band, so that the first power amplifier 111 can be shortened.
  • the operating bandwidth of the first power amplifier 111 can ensure that the impedance load of the first power amplifier 111 is adjusted to the optimal position, which greatly improves the working efficiency of the first power amplifier 111.
  • the radio frequency transceiver system can also be used to support the 1T4R function of the Sounding Reference Signal SRS of the low frequency and mid frequency radio frequency signals.
  • the radio frequency transceiver system further includes a first MIMO receiving module 70 and a second MIMO receiving module 80 .
  • the switch module may further include a ninth switch unit 540 and a tenth switch unit 550 .
  • a first end of the ninth switch unit 540 is connected to the other second end of the fifth switch unit 510 , the other first end of the ninth switch unit 540 is connected to the first MIMO receiving module 70 , and the ninth switch unit 540
  • the second end is connected to the other first end of the third combiner 630 ;
  • a first end of the tenth switch unit 550 is connected to another second end of the fifth switch unit 510 , and the other end of the tenth switch unit 550 is connected
  • the first end is connected to the second MIMO receiving module 80
  • the second end of the tenth switch unit 550 is connected to the other first end of the fourth combiner 640 .
  • the first MIMO receiving module 70 is configured to support the main set receiving and amplifying processing of multiple radio frequency signals in the middle and high frequency bands.
  • the second MIMO receiving module 80 is configured to support diversity receiving and amplifying processing of multiple radio frequency signals in the middle and high frequency bands.
  • the multiple radio frequency signals in the middle and high frequency bands may at least include frequency bands such as B1, B3, B25, B34, B66, B39, B30, B7, B40, and B41.
  • An embodiment of the present application further provides a communication device, the communication device is provided with the radio frequency transceiver system in any of the above embodiments, and by setting the radio frequency transceiver system on the communication device, the first radio frequency signals of different formats in the high frequency band are
  • the first power amplifier 111 and the second power amplifier 121 are respectively set corresponding to the second radio frequency signal. That is, the first power amplifier 111 only works for the first radio frequency signal in the B7 frequency band of the FDD standard, and the second power amplifier 121 only works for the second radio frequency signal in the B40 and B41 frequency bands of the TDD standard, so that the first power can be shortened.
  • the working bandwidth of the amplifier 111 can ensure that the impedance load of the first power amplifier 111 is adjusted to the optimal position, which greatly improves the working efficiency of the first power amplifier 111.
  • the DC power supply voltage of the first power amplifier 111 can be greatly reduced, thereby achieving the purpose of reducing the total power consumption of the radio frequency L-PA Mid device.

Abstract

L'invention concerne un dispositif radiofréquence L-PA MID, le dispositif radiofréquence L-PA MID étant pourvu d'un port d'émission et d'un port d'antenne, et le dispositif radiofréquence L-PA MID comprenant : un premier circuit d'émission (110) qui comprend un premier amplificateur de puissance (111), une borne d'entrée du premier amplificateur de puissance (111) étant connectée au port d'émission, et ledit amplificateur étant utilisé pour amplifier un premier signal radiofréquence d'une bande haute fréquence ; un second circuit d'émission (120) qui comprend un second amplificateur de puissance (121), une borne d'entrée du second amplificateur de puissance (121) étant connectée au port d'émission, et ledit amplificateur étant utilisé pour amplifier une pluralité de seconds signaux radiofréquence d'une bande haute fréquence ; un commutateur de sélection multicanal (130), une pluralité de premières bornes du commutateur de sélection multicanal (130) étant respectivement connectées à des bornes de sortie du premier amplificateur de puissance (111) et des seconds amplificateurs de puissance (121), une borne de sortie du commutateur de sélection multicanal (130) étant connectée au port d'antenne, et ledit commutateur étant utilisé pour activer sélectivement un canal radiofréquence respectivement entre le port d'antenne et le premier amplificateur de puissance (111) et le second amplificateur de puissance (121).
PCT/CN2021/125208 2020-12-02 2021-10-21 Dispositif radiofréquence l-pa mid, système d'émission-réception radiofréquence et dispositif de communication WO2022116724A1 (fr)

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