WO2023098201A1 - Système radiofréquence et dispositif de communication - Google Patents

Système radiofréquence et dispositif de communication Download PDF

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Publication number
WO2023098201A1
WO2023098201A1 PCT/CN2022/117226 CN2022117226W WO2023098201A1 WO 2023098201 A1 WO2023098201 A1 WO 2023098201A1 CN 2022117226 W CN2022117226 W CN 2022117226W WO 2023098201 A1 WO2023098201 A1 WO 2023098201A1
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WIPO (PCT)
Prior art keywords
radio frequency
output
unit
antenna
low
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PCT/CN2022/117226
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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 WO2023098201A1 publication Critical patent/WO2023098201A1/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
    • 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
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0257—Traffic management, e.g. flow control or congestion control per individual bearer or channel the individual bearer or channel having a maximum bit rate or a bit rate guarantee
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H04W8/205—Transfer to or from user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of radio frequency technology, in particular to a radio frequency system and communication equipment.
  • 5G mobile communication technology has gradually begun to be applied to electronic devices.
  • 5G low-frequency signals have low wireless frequencies, relatively long wavelengths, stronger diffraction capabilities, and greater coverage capabilities. Therefore, 5G low-frequency networks are currently widely used, but 5G low-frequency The data transfer rate of the signal is lower.
  • a radio frequency system and a communication device are provided.
  • a radio frequency system comprising:
  • the transceiver module is connected to the radio frequency transceiver and the first antenna respectively, and is used to support the transmission and main set reception of low frequency band radio frequency signals;
  • the diversity receiving module is connected to the radio frequency transceiver and the second antenna respectively, and is used to support the diversity reception of the low frequency band radio frequency signal;
  • the first MIMO receiving module is respectively connected to the radio frequency transceiver and the third antenna, and is used to support the main set MIMO reception of the low frequency band radio frequency signal;
  • the second MIMO receiving module is respectively connected to the radio frequency transceiver and the fourth antenna, and is used to support diversity MIMO reception of the low frequency band radio frequency signal.
  • a communication device includes the above-mentioned radio frequency system.
  • the above radio frequency system and communication equipment realize the transmission and main set reception of low frequency band radio frequency signals through the transceiver module, the diversity receiving module performs diversity reception on low frequency band radio frequency signals, and the first MIMO receiving module performs main set MIMO reception on low frequency band radio frequency signals, And the second MIMO receiving module performs diversity MIMO reception on the low-frequency radio frequency signal, so that the radio frequency system can support 4*4 MIMO reception of the low-frequency radio frequency signal, so as to improve the throughput of the radio frequency system to the low-frequency radio frequency signal, thereby improving communication equipment in low-frequency The data transfer rate under the network.
  • FIG. 1 is one of the schematic structural diagrams of a radio frequency system according to one or more embodiments
  • Fig. 2 is a second schematic structural diagram of a radio frequency system according to one or more embodiments
  • Fig. 3 is a third structural schematic diagram of a radio frequency system according to one or more embodiments.
  • Fig. 4 is a fourth structural schematic diagram of a radio frequency system according to one or more embodiments.
  • Fig. 5 is a fifth schematic structural diagram of a radio frequency system according to one or more embodiments.
  • Fig. 6 is a sixth schematic structural diagram of a radio frequency system according to one or more embodiments.
  • Fig. 7 is a seventh schematic structural diagram of a radio frequency system according to one or more embodiments.
  • Fig. 8 is an eighth schematic structural diagram of a radio frequency system according to one or more embodiments.
  • Fig. 9 is a ninth structural schematic diagram of a radio frequency system according to one or more embodiments.
  • Fig. 10 is a tenth structural schematic diagram of a radio frequency system according to one or more embodiments.
  • Fig. 11 is an eleventh structural schematic diagram of a radio frequency system according to one or more embodiments.
  • Fig. 12 is a twelveth structural schematic diagram of a radio frequency system according to one or more embodiments.
  • Figure 13 is a schematic diagram of a communication device in accordance with one or more embodiments.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the radio frequency system involved in the embodiments of the present application can be applied to communication devices with wireless communication functions, and the communication devices can be handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, and various forms of A user equipment (UserEquipment, UE) (for example, a mobile phone), a mobile station (Mobile Station, MS) and so on.
  • UE user equipment
  • MS Mobile Station
  • the radio frequency system includes a radio frequency transceiver 10, a transceiver module 20, a diversity receiving module 30, a first MIMO receiving module 40, and a second MIMO receiving module 50 .
  • the radio frequency system further includes an antenna group, and the antenna group includes at least 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 antennas capable of supporting 5G NR signals.
  • each antenna in the antenna group may be a directional antenna or a non-directional antenna.
  • each antenna in the antenna group may be formed using any suitable type of antenna.
  • individual antennas within the antenna group may include antennas with resonating elements formed from the following antenna structures: array antenna structures, loop antenna structures, patch antenna structures, slot antenna structures, helical antenna structures, strip antennas, monopole antenna structures, At least one of an antenna, a dipole antenna, and the like.
  • Different types of antennas can be used for frequency band combinations of different RF signals.
  • the radio frequency transceiver 10 may include a transmitter and a receiver. Wherein, the radio frequency transceiver 10 can be used to implement frequency conversion processing between radio frequency signals and baseband signals, or/and, to implement frequency conversion processing of signals in different frequency bands, and the like.
  • the transceiver module 20 can realize the transmission and main set reception of low-frequency radio frequency signals by cooperating with the first antenna ANT1; the diversity receiving module 30 can realize the low-frequency radio frequency signal transmission Diversity reception; the first MIMO receiving module 40 can realize the main set MIMO reception of the low frequency band radio frequency signal by cooperating with the third antenna ANT3; the second MIMO receiving module 50 can realize the low frequency band Diversity MIMO reception of radio frequency signals, which in turn supports 4*4 MIMO reception of low frequency band radio frequency signals.
  • MIMO Multiple Input Multiple Output
  • transmitting power the channel capacity of the system can be doubled.
  • the throughput of the low frequency radio frequency signal can be doubled.
  • the low-band radio frequency signal in this embodiment of the present application may include a 5G low-band radio frequency signal and/or a 4G low-band radio frequency signal.
  • the low-frequency radio frequency signal may include at least one frequency band among N5, N8, N20, and N28A.
  • the transceiver module 20 is used to support the transmission and main set reception of multiple low-band radio frequency signals. In one of the embodiments, the transceiver module 20 can select one of the multiple radio frequency signals to transmit, and can also perform main set reception on the radio frequency signals of at least one frequency band. In another embodiment, the transceiver module 20 can simultaneously transmit radio frequency signals of more than two frequency bands, and can also perform main set reception of radio frequency signals of more than two frequency bands.
  • the diversity receiving module 30 is configured to support diversity reception of radio frequency signals of multiple low frequency bands. In one of the embodiments, the diversity receiving module 30 may select one of multiple low-frequency radio frequency signals to perform diversity reception. In another embodiment, the diversity receiving module 30 can simultaneously perform diversity reception on more than two low-frequency radio frequency signals.
  • the first MIMO receiving module 40 is configured to support main set MIMO reception of radio frequency signals of multiple low frequency bands. In one of the embodiments, the first MIMO receiving module 40 may select one of multiple low-frequency radio frequency signals to perform main-set MIMO reception. In another embodiment, the first MIMO receiving module 40 may perform main-set MIMO reception on more than two low-frequency radio frequency signals at the same time.
  • the second MIMO receiving module 50 is configured to support diversity MIMO reception of radio frequency signals of multiple low frequency bands. In one of the embodiments, the second MIMO receiving module 50 may select one of multiple low-frequency radio frequency signals to perform diversity MIMO reception. In another embodiment, the second MIMO receiving module 50 can perform diversity MIMO reception on more than two low-frequency radio frequency signals at the same time.
  • the first MIMO receiving module 40 includes a first filtering selection unit 420 and a first amplification unit 410 .
  • the first filter selection unit 420 includes at least one input terminal and multiple output terminals
  • the first amplifying unit 410 includes multiple input terminals and at least one output terminal.
  • An input terminal of the first filter selection unit 420 is connected to the third antenna ANT3, and multiple output terminals of the first filter selection unit 420 are connected to multiple input terminals of the first amplification unit 410 in one-to-one correspondence, and the first amplification unit 410
  • the output terminal of is connected with radio frequency transceiver 10.
  • the first filtering selection unit 420 performs filtering processing on the radio frequency signal received by the third antenna ANT3 and selects and outputs at least one 5G radio frequency signal of a frequency band to the first amplifying unit 410, and the first amplifying unit 410 low-frequency radio frequency signal received by the low frequency band The noise is amplified and output to the radio frequency transceiver 10 .
  • the first filter selection unit 420 filters the radio frequency signal received by the third antenna ANT3, and selects a filter channel capable of outputting the N28A frequency band to process the radio frequency signal to output the radio frequency signal of the N28A frequency band to the first amplification unit 410 for low-noise amplification processing.
  • the first amplifying unit 410 includes a plurality of first low noise amplifiers 411 and a first selection switch 412 .
  • the first selection switch 412 includes at least one first terminal and multiple second terminals, the first terminal of the first selection switch 412 serves as the output terminal of the first amplification unit 410, and the multiple second terminals of the first selection switch 412
  • the output terminals of the multiple first low noise amplifiers 411 are respectively connected in one-to-one correspondence; the input terminals of the multiple first low noise amplifiers 411 are respectively used for one-to-one connection with the multiple output terminals of the first filter selection unit 420 .
  • the first filter selection unit 420 includes a plurality of first filters 421 and a second selection switch 422 .
  • one end of a plurality of first filters 421 is respectively used as a plurality of output ends of the first filter selection unit 420, and is respectively connected to a plurality of input ends of the first amplifying unit 410 in one-to-one correspondence
  • the second selection switch 422 includes a plurality of The first terminal and at least one second terminal, the multiple first terminals of the second selection switch 422 are respectively connected to the other terminals of the multiple first filters 421 in one-to-one correspondence, and the second terminal of the second selection switch 422 serves as the first
  • the input end of the filter selection unit 420 is used for connecting with the third antenna ANT3.
  • a plurality of first filters 421 can filter the received radio frequency signal, wherein each first filter 421 only allows a low-frequency signal of a preset frequency band to pass through.
  • the frequency bands of the low-frequency radio frequency signals can be four different frequency bands of N5, N8, N20, and N28A
  • four first filters 421 can be set correspondingly to realize the filtering processing of the four low-frequency signals.
  • radio frequency signals in four frequency bands N5 , N8 , N20 , and N28A can be correspondingly output to the first amplifying unit 410 .
  • the first MIMO receiving module 40 can be a package structure, and the first MIMO receiving module 40 is configured with an antenna port Ant for connecting the third antenna ANT3 and at least one output for connecting the radio frequency transceiver 10 Port LNA OUT.
  • the antenna port Ant and the output port LNA OUT configured in the module can be understood as radio frequency pin terminals of the first MIMO receiving module 40, and are used for connecting with various external devices.
  • the antenna port Ant of the first MIMO receiving module 40 can be used for connecting with the antenna; the output port LNA OUT of the first MIMO receiving module 40 can be used for connecting with the radio frequency transceiver 10.
  • the antenna port Ant is used to receive the radio frequency signal output by the third antenna ANT3, and the first MIMO receiving module 40 can filter and amplify the input radio frequency signal, so as to output it to the radio frequency transceiver 10 through the output port LNA OUT, so as to Realize the reception control of low-frequency radio frequency signals.
  • the first MIMO receiving module 40 is integrated into one device, which can reduce the board area occupied by the radio frequency system.
  • the integrated first MIMO receiving module 40 can realize the matching between various parts inside the device, reducing the number of ports Mismatch improves device performance, and the integrated first MIMO receiving module 40 only needs to set a set of power supply terminals and MIPI control terminals, which improves the integration of devices, reduces the complexity of system layout, and can also reduce costs.
  • the second MIMO receiving module 50 includes a third filtering selection unit 520 and a third amplification unit 510 .
  • the third filter selection unit 520 includes at least one input terminal and multiple output terminals
  • the third amplifying unit 510 includes multiple input terminals and at least one output terminal.
  • An input terminal of the third filter selection unit 520 is connected to the fourth antenna ANT4, and multiple output terminals of the third filter selection unit 520 are respectively connected to multiple input terminals of the third amplifying unit 510 in one-to-one correspondence, and the third amplifying unit 510
  • the output terminal of is connected with radio frequency transceiver 10.
  • the third filtering selection unit 520 performs filtering processing on the radio frequency signal received by the fourth antenna ANT4 and selects and outputs at least one 5G radio frequency signal of a frequency band to the third amplifying unit 510, and the third amplifying unit 510 performs low-noise processing on the received 5G radio frequency signal After amplified processing, it is output to the radio frequency transceiver 10 .
  • the third filter selection unit 520 filters the radio frequency signal received by the fourth antenna ANT4, and selects a filter path capable of outputting the N28A frequency band to process the radio frequency signal to output the radio frequency signal of the N28A frequency band Go to the third amplifying unit 510 to perform noise reduction processing.
  • the third amplifying unit includes a plurality of second low noise amplifiers 511 and a third selection switch 512 .
  • the third selection switch 512 includes at least one first terminal and multiple second terminals, the first terminal of the third selection switch 512 serves as the output terminal of the third amplification unit, and the multiple second terminals of the third selection switch 512 are respectively
  • the output ends of the plurality of second low noise amplifiers 511 are connected in one-to-one correspondence; the input ends of the plurality of second low noise amplifiers 511 are respectively used for one-to-one connection with the plurality of output ends of the third filter selection unit.
  • the third filter selection unit includes a plurality of second filters 521 and a fourth selection switch 522 .
  • one end of the plurality of second filters 521 is respectively used as a plurality of output ends of the third filter selection unit 520, and is respectively connected to a plurality of input ends of the third amplifying unit in one-to-one correspondence
  • the fourth selection switch 522 includes a plurality of first One end and at least one second end, a plurality of first ends of the fourth selection switch 522 are respectively connected to the other ends of the plurality of second filters 521 in one-to-one correspondence, and the second end of the fourth selection switch 522 is used as the third filter
  • the input terminal of the selection unit is used for connecting with the fourth antenna ANT4.
  • a plurality of second filters 521 can filter the received radio frequency signal, wherein each second filter 521 only allows a low-frequency signal of a preset frequency band to pass through.
  • the frequency bands of the low-frequency radio frequency signals can be four different frequency bands of N5, N8, N20, and N28A
  • four second filters 521 can be set correspondingly to realize the filtering processing of the four low-frequency signals.
  • the 5G radio frequency signals in the four frequency bands N5, N8, N20, and N28A can be correspondingly output to the third amplifying unit 510 .
  • the second MIMO receiving module 50 can be a package structure, and the second MIMO receiving module 50 is configured with an antenna port Ant for connecting the fourth antenna ANT4 and at least one output for connecting the radio frequency transceiver 10 Port LNA OUT.
  • the antenna port Ant and the output port LNA OUT configured in this module can be understood as the radio frequency pin terminals of the second MIMO receiving module 50, and are used for connecting with various external devices.
  • the antenna port Ant of the second MIMO receiving module 50 can be used for connecting with the antenna; the output port LNA OUT of the second MIMO receiving module 50 can be used for connecting with the radio frequency transceiver 10.
  • the antenna port Ant is used to receive the radio frequency signal output by the fourth antenna ANT4, and the second MIMO receiving module 50 can filter and amplify the input radio frequency signal, so as to output it to the radio frequency transceiver 10 through the output port LNA OUT, so as to Realize the reception control of low-frequency radio frequency signals.
  • the second MIMO receiving module 50 is integrated into one device, which can reduce the board area occupied by the radio frequency system.
  • the integrated second MIMO receiving module 50 can realize the matching between various parts inside the device, reducing the number of ports. Mismatch improves device performance, and the integrated second MIMO receiving module 50 only needs to set a set of power supply terminals and MIPI control terminals, which improves the integration of devices, reduces the complexity of system layout, and can also reduce costs.
  • FIG. 6 shows a radio frequency system in an embodiment.
  • the transceiver module 20 may include a radio frequency PA Mid device, and the radio frequency PA Mid device may be understood as a power amplifier module (Power Amplifier Modules including Duplexers, PA Mid).
  • the RF PA Mid device can support the reception and transmission of low-frequency signals in multiple frequency bands, and realize the switching control of receiving and switching between multiple low-frequency signals, the switching control of transmitting, and the switching control between transmitting and receiving.
  • the plurality of low-frequency signals may include low-frequency signals of different frequency bands among 2G signals, 3G signals, 4G signals, and 5G signals.
  • the frequency bands of the plurality of low-frequency signals may include any one of the frequency bands among B5, B8, B12, B20, B26, B28A, B28B, B13, and B19.
  • the N5, N8, N20, and N28A in the 5G signal are the same as the B5, B8, B20, and B28A in the 4G signal, and can share the same receiving path and transmitting path.
  • the first antenna port LB ANT of the radio frequency PA Mid device is connected with the first antenna ANT1, an input port 4G LB RFIN of the radio frequency PA Mid device is connected with the radio frequency transceiver 10, and at least one output port LNA OUT1 of the radio frequency PA Mid device is connected with the radio frequency transceiver
  • the radio frequency PA Mid device is used to filter and amplify the low-frequency radio frequency signal sent by the radio frequency transceiver 10, output it to the antenna port LB ANT1, and transmit it through the first antenna ANT1 to realize the radio frequency of multiple low-frequency bands. Signal emission control.
  • the first antenna port LB ANT of the RF PA Mid device is also used to receive the low-frequency radio frequency signal received by the first antenna ANT1. After filtering and amplifying the low-frequency radio frequency signal, it passes through the output port LNA OUT1 or the output port LNA OUT2 output to the radio frequency transceiver 10 to realize the reception control of multiple low frequency signals.
  • the diversity receiving module 30 may include a radio frequency LFEM device (the radio frequency LFEM device supporting low, middle and high frequency bands used in FIG. 6 , and a radio frequency LFEM device supporting only low frequency bands may also be used in some embodiments).
  • RF LFEM devices are understood as low noise amplifier front-end modules (Low Noise AmPlifier–Front-End Modules).
  • the radio frequency LFEM device can support the reception of low-frequency signals in multiple frequency bands, and realize the switching control of reception among multiple low-frequency signals.
  • the multiple low-frequency signals may include low-frequency signals of different frequency bands in the 4G signal and the 5G signal.
  • the frequency bands of the plurality of low-frequency signals may include any one of the frequency bands among B5, B8, B12, B20, B26, B28A, B28B, B13, and B19.
  • the N5, N8, N20, and N28A in the 5G signal are the same as the B5, B8, B20, and B28A in the 4G signal, and can share the same receiving channel.
  • the third antenna port LB3 ANT of the radio frequency LFEM device is connected with the second antenna ANT2, and the transmitting port (including LNA OUT LB1, LNA OUT LB2) of the radio frequency LFEM device is connected with the radio frequency transceiver 10.
  • the radio frequency LFEM device is used to receive the low frequency radio frequency signal received by the second antenna ANT2, filter and amplify the low frequency radio frequency signal, and output it to the radio frequency transceiver 10 through the transmission port, so as to realize the reception control of multiple low frequency signals.
  • a radio frequency system supporting 4*4 MIMO reception of low-band radio frequency signals is constructed to improve the throughput of low-band radio frequency signals.
  • the radio frequency system based on the foregoing embodiments can support the 4*4 MIMO function of four antennas.
  • Figure 6 as an example to analyze the working principle of the 4*4MIMO function in the N28A frequency band:
  • the transmission signal is output from the TX0 LB1 port of the radio frequency transceiver 10, through the radio frequency line, to the 4G LB RFIN port of the radio frequency PA Mid device, and after the signal is amplified by the 4G LB PA, it is sent to the single port of the radio frequency switch SP9T; the radio frequency switch SP9T is switched to touch Point 9, to the B28A TX channel; through the internal radio frequency line, to the contact 2 of the radio frequency switch SPDT; the radio frequency switch SPDT switches the single port, and passes through the duplexer to the radio frequency switch SP10T; the radio frequency switch SP10T switches the single port to the LB1 ANT port; The LB1 ANT port outputs to the first antenna ANT1 for transmission.
  • the received radio frequency signal enters from the first antenna ANT1 to the LB1 ANT port of the radio frequency PA Mid device; the radio frequency switch SP10T is switched to the contact 9, and passes through the duplexer to the B28A RX channel; to the radio frequency switch SP6T, the radio frequency switch SP6T switches the single Port to LNA2 channel; after being amplified by LNA2, the RF switch DPDT is switched to contact 1, and output to the LNA OUT1 port of the RF PA Mid device; the received RF signal enters the RF transceiver 10 through the SDR PRXE port.
  • the received RF signal enters from the second antenna ANT2 to the LB3 ANT port of the RF LFEM device; the RF switch SP6T is switched to contact 4, and after filtering by the filter, it goes to the RF switch SP3T#1; the RF switch SP3T#1 switches the single port , after being amplified by LNA1, to the radio frequency switch DPDT; the radio frequency switch DPDT is switched to contact 1, and output to the LNA OUT LB1 port of the radio frequency LFEM device; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR DRXE port.
  • the received radio frequency signal enters from the third antenna ANT3, the antenna port Ant of the first MIMO receiving module 40; the second selection switch 422 switches to the contact 4, after filtering by the first filter 421 and amplifying by the first low noise amplifier 411, To the first selection switch 412; the first selection switch 412 is switched to the contact 2, and output to the LNA OUT port of the first MIMO receiving module 40; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR PRX3 port.
  • the received radio frequency signal enters from the fourth antenna ANT4, the antenna port Ant of the second MIMO receiving module 50; the fourth selector switch 522 is switched to the contact 4, after being filtered by the second filter 521 and amplified by the second low noise amplifier 511, To the third selection switch 512; the third selection switch 512 is switched to contact 2, and output to the LNA OUT port of the second MIMO receiving module 50; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR DRX3 port.
  • the first amplifying unit 410 in the first MIMO receiving module 40 is integrated in the transceiver module 20 .
  • the transceiver module 20 can be understood as a package structure, configured with at least one first input port LB RFIN and a plurality of output ports LNA OUT for connecting with the radio frequency transceiver 10, and a first antenna port LB1 for connecting with the first antenna ANT1 ANT and multiple second input ports PRX for one-to-one connection with multiple output terminals of the first filter selection unit 420 .
  • the transceiver module 20 includes a transmitting unit 210 , a second filter selection unit 220 , a second amplification unit 230 and a first switch unit 240 .
  • a plurality of input ends of the first amplifying unit 410 are respectively connected with a plurality of second input ports PRX of the transceiver module 20 in one-to-one correspondence, and the transmitting unit 210 is connected with the first input port LB RFIN and the second filter selection of the transceiver module 20 respectively.
  • the transmitting path TX of the unit is connected, the receiving path RX of the second filter selection unit is connected with the input end of the second amplifying unit 230, and the second filter selection unit 220 is also connected with the first antenna port LB1 ANT of the transceiver module 20.
  • the first switch unit 240 includes a plurality of first ends and a plurality of second ends, and a plurality of first ends of the first switch unit 240 are respectively connected to a plurality of output ports LNA OUT of the transceiver module 20 in one-to-one correspondence, and the first switch unit The multiple second ends of 240 are respectively connected to the output end of the first amplifying unit 410 and the output end of the second amplifying unit 230 .
  • the transmitting unit 210 is configured to receive the low-band radio frequency signal output by the radio frequency transceiver 10, and amplify the received low-band radio frequency signal.
  • the second filter selection unit 220 is used to filter the radio frequency signal received by the first antenna ANT1 and select and output at least one frequency band of 5G radio frequency signal or 4G low frequency signal, and is also used to perform low frequency band radio frequency signal output by the transmitting unit 210
  • the 5G radio frequency signal or the 4G low frequency signal of at least one frequency band is filtered and selected to be output and radiated through the first antenna ANT1.
  • the second amplifying unit 230 is configured to amplify the 5G radio frequency signal or the 4G low frequency signal filtered by the second filtering selection unit 220 .
  • the first switch unit is used to selectively conduct the path between the first amplifying unit 410, the second amplifying unit 230 and the output port LNA OUT of the transceiver module 20.
  • the radio frequency transceiver 10 inputs a low frequency 5G radio frequency signal or a 4G radio frequency signal to the first input port LB RFIN of the transceiver module 20, and after being amplified by the transmitting unit 210, it is output to the second filter selection unit 220 for filtering processing, and selects
  • the 5G radio frequency signal or 4G radio frequency signal of at least one frequency band is output to the first antenna port LB ANT of the transceiver module 20, and is transmitted through the first antenna ANT1 to realize the transmission of the 5G radio frequency signal or 4G radio frequency signal of the low frequency band.
  • the first antenna ANT1 outputs the received low-frequency radio frequency signal to the first antenna port LB ANT of the transceiver module 20, and after being filtered by the second filter selection unit 220, it is output to the second amplification unit 230 for low-noise amplification processing, and then Output to the output port LNA OUT of the transceiver module 20 through the first switch unit 240, and output to the radio frequency transceiver 10, so as to realize the main set reception of the radio frequency signal of the low frequency band.
  • the third antenna ANT3 outputs the received low-frequency radio frequency signal to the first filter selection unit 420 for filtering and processing, then outputs it to the second input port PRX of the transceiver module 20, and inputs it to the first amplification unit 410 for low-noise amplification processing, and then Output to the output port LNA OUT of the transceiver module 20 through the first switch unit 240, and output to the radio frequency transceiver 10, so as to realize the main set MIMO reception of the 5G radio frequency signal or the 4G radio frequency signal of the low frequency band.
  • the first amplifying unit 410 of the first MIMO receiving module 40 is integrated into the transceiver module 20 to further improve the integration of the device, reduce the board area occupied by the radio frequency system, and reduce the complexity of the system layout.
  • the third amplification unit 510 in the second MIMO receiving module 50 is integrated into the diversity receiving module 30 .
  • the diversity receiving module 30 can be understood as a package structure, and is configured with a transmitting port LNA OUT LB for connecting with the radio frequency transceiver 10, a third antenna port LB3 ANT for connecting with the second antenna ANT2, and a plurality of antenna ports for connecting with the third antenna ANT2.
  • Multiple output terminals of the filter selection unit 520 are connected to the receiving ports DRX in one-to-one correspondence.
  • the diversity receiving module 30 includes a fourth filter selection unit 310 , a fourth amplification unit 320 and a second switch unit 330 .
  • multiple input ends of the third amplifying unit 510 are respectively connected to multiple receiving ports DRX of the diversity receiving module 30 in a one-to-one correspondence.
  • the fourth filter selection unit 310 is respectively connected to the third antenna port LB3 ANT of the diversity receiving module 30 and the input end of the fourth amplification unit 320.
  • the second switch unit 330 includes a plurality of first ends and a plurality of second ends, and a plurality of first ends of the second switch unit 330 are respectively connected to a plurality of transmitting ports LNA OUT LB of the diversity receiving module 30 in one-to-one correspondence, and the second Multiple second terminals of the switch unit 330 are respectively connected to the output terminal of the third amplification unit 510 and the output terminal of the fourth amplification unit 320 .
  • the fourth filtering selection unit 310 is configured to filter the low-band radio frequency signal received by the second antenna ANT2 and select and output at least one low-band 5G radio frequency signal or 4G radio frequency signal.
  • the fourth amplifying unit 320 is configured to perform low-noise amplification processing on the low-frequency 5G radio frequency signal or the 4G radio frequency signal filtered by the fourth filtering selection unit 310 .
  • the second switch unit 330 is used for selectively conducting the path between the third amplifying unit 510, the fourth amplifying unit 320 and the transmitting port LNA OUT LB of the diversity receiving module 30.
  • the second antenna ANT2 outputs the received low-frequency radio frequency signal to the third antenna port LB3 ANT of the diversity receiving module 30, and after filtering by the fourth filter selection unit 310, it is output to the fourth amplifying unit 320 for low-noise amplification processed, and then output to the transmitting port LNA OUT LB of the diversity receiving module 30 through the second switch unit 330, and output to the radio frequency transceiver 10, so as to realize the diversity reception of 5G radio frequency signals or 4G radio frequency signals in the low frequency band.
  • the fourth antenna ANT4 outputs the received low-frequency radio frequency signal to the third filter selection unit 520 for filter processing, then outputs it to the receiving port DRX of the diversity receiving module 30, and inputs it to the third amplification unit 510 for amplification processing, and then passes through the second
  • the switch unit 330 outputs to the transmit port LNA OUT LB of the diversity receiving module 30, and outputs to the radio frequency transceiver 10, so as to realize diversity MIMO reception of 5G radio frequency signals or 4G radio frequency signals in the low frequency band.
  • the third amplifying unit 510 in the second MIMO receiving module 50 is integrated into the diversity receiving module 30 to further improve the integration of devices, reduce the board area occupied by the radio frequency system, and reduce the complexity of system layout.
  • the first amplifying unit includes a first low noise amplifier 411 and a first selection switch 412 .
  • the first selection switch 412 includes a first terminal and a plurality of second terminals, the first terminal of the first selection switch 412 is connected to the input terminal of the first low noise amplifier 411; the multiple second terminals of the first selection switch 412 Terminals serve as multiple input terminals of the first amplifying unit 410 , and are respectively used for one-to-one corresponding connection with multiple output terminals of the first filter selection unit 420 .
  • the first amplifying unit is integrated in the transceiver module 20, and the paths between the first low-noise amplifier 411 and the different output terminals of the first filter selection unit 420 are selected through the first selection switch 412, so as to select different frequency bands.
  • the 5G radio frequency signal is subjected to low-noise amplification processing, which saves the number of the first low-noise amplifier 411 and reduces the area occupied by the device on the motherboard.
  • the third amplifying unit includes at least one second low noise amplifier 511 and a third selection switch 512 .
  • the third selection switch 512 includes at least one first terminal and a plurality of second terminals, the first terminal of the third selection switch 512 is connected to the input terminal of the second low noise amplifier 511; the multiple first terminals of the third selection switch 512
  • the two terminals are respectively used as multiple input terminals of the third amplification unit 510 , and are respectively used for one-to-one corresponding connection with multiple output terminals of the third filter selection unit 520 .
  • the third amplifying unit is integrated in the diversity receiving module 30, and the paths between the different output terminals of the second low-noise amplifier 511 and the third filter selection unit 520 are selected through the third selection switch 512 to select different frequency bands.
  • the 5G radio frequency signal is subjected to low-noise amplification processing, which saves the number of the second low-noise amplifier 511 and reduces the area occupied by the device on the motherboard.
  • FIG. 9 shows a radio frequency system in an embodiment.
  • the transceiver module 20 can be understood as a radio frequency PA Mid device integrating the first amplifying unit.
  • the RF PA Mid device can support the reception and transmission of low-frequency signals in multiple frequency bands, and realize the switching control of receiving and switching between multiple low-frequency signals, the switching control of transmitting, and the switching control between transmitting and receiving.
  • the plurality of low-frequency signals may include low-frequency signals of different frequency bands among 2G signals, 3G signals, 4G signals, and 5G signals.
  • the frequency bands of the plurality of low-frequency signals may include any one of the frequency bands among B5, B8, B12, B20, B26, B28A, B28B, B13, and B19.
  • the N5, N8, N20, and N28A in the 5G signal are the same as the B5, B8, B20, and B28A frequency bands in the 4G signal, and can share the same receiving path and transmitting path.
  • the first antenna port L/1 ANT of the radio frequency PA Mid device is connected with the first antenna ANT1, an input port 4G LB RFIN of the radio frequency PA Mid device is connected with the radio frequency transceiver 10, and a plurality of second input ports PRX1 of the radio frequency PA Mid device , PRX2, PRX3, PRX4 are respectively connected with a plurality of output terminals of the first filter selection unit 420 in one-to-one correspondence, and at least one output port (LNA OUT1, LNA OUT2, LNA OUT3) of the radio frequency PA Mid device is connected with the radio frequency transceiver 10,
  • the RF PA Mid device is used to filter and amplify the low-frequency radio frequency signal sent by the radio frequency transceiver 10, output it to the first antenna port LB1 ANT, and transmit it
  • the first antenna port LB1 ANT of the RF PA Mid device is also used to receive the low-frequency radio frequency signal received by the first antenna ANT1. After filtering and amplifying the low-frequency radio frequency signal, it passes through the output port LNA OUT1, LNA OUT2 or LNA OUT3 is output to the radio frequency transceiver 10, so as to realize the master receiving control of multiple low frequency signals.
  • the second input ports PRX1, PRX2, PRX3, and PRX4 of the radio frequency PA Mid device are used to receive the 5G radio frequency signal output after the radio frequency signal received by the third antenna ANT3 is filtered by the first filter selection unit 420, and the 5G radio frequency signal is processed. After low-noise amplification processing, it is output to the radio frequency transceiver 10 through the output port, so as to realize the main set MIMO reception control of 5G radio frequency signals in multiple low frequency bands.
  • the diversity receiving module 30 can be understood as a radio frequency LFEM device integrated with a second amplifying unit (the radio frequency LFEM device that supports low, middle and high frequency bands is adopted in FIG. ).
  • the radio frequency LFEM device can support the reception of low-frequency signals in multiple frequency bands, and realize the switching control of reception among multiple low-frequency signals.
  • the multiple low-frequency signals may include low-frequency signals of different frequency bands in the 4G signal and the 5G signal.
  • the frequency bands of the plurality of low-frequency signals may include any one of the frequency bands among B5, B8, B12, B20, B26, B28A, B28B, B13, and B19.
  • the N5, N8, N20, and N28A in the 5G signal are the same as the B5, B8, B20, and B28A in the 4G signal, and can share the same receiving channel.
  • the third antenna port LB3 ANT of the radio frequency LFEM device is connected to the second antenna ANT2, and the multiple receiving ports DRX1, DRX2, DRX3, and DRX4 of the radio frequency LFEM device are respectively connected to a plurality of output ends of the third filter selection unit 520 in one-to-one correspondence,
  • the transmitting ports LNA OUT LB1, LNA OUT LB2, and LNA OUT LB3 of the radio frequency LFEM device are respectively connected to the radio frequency transceiver 10.
  • the third antenna port LB3 ANT of the RF LFEM device is used to receive the low-frequency signal received by the second antenna ANT2. After the low-frequency signal is filtered and amplified, it is output to the RF transceiver through the transmitting port LNA OUT LB1, LNA OUT LB2 or LNA OUT LB3 device 10 to realize diversity reception control of multiple low frequency signals.
  • the input ports PRX1, PRX2, PRX3, and PRX4 of the radio frequency LFEM device are used to receive the 5G radio frequency signal output after filtering the low frequency radio frequency signal received by the fourth antenna ANT4 by the third filter selection unit 520, and perform the 5G radio frequency signal output. After amplification processing, it is output to the radio frequency transceiver 10 through the transmitting port LNA OUT LB1, so as to realize the diversity MIMO reception control of 5G radio frequency signals in multiple low frequency bands.
  • a 4*4 MIMO reception system supporting low-frequency radio frequency signals is constructed.
  • the RF system improves the throughput of low-frequency RF signals, improves the integration of devices, and reduces the loss of signals on external RF lines.
  • the radio frequency system based on the foregoing embodiments can support the 4*4 MIMO function of four antennas.
  • Figure 9 as an example to analyze the working principle of the 4*4MIMO function in the N28A frequency band:
  • the transmit signal is output from the TX0LB1 port of the radio frequency transceiver 10, through the radio frequency line, to the 4G LB RFIN port of the radio frequency PA Mid device, after the signal is amplified by the 4G LB PA, to the single port of the radio frequency switch SP9T; the radio frequency switch SP9T switches to the contact 9.
  • the radio frequency switch SPDT switches the single port, and passes through the duplexer to the radio frequency switch SP10T; the radio frequency switch SP10T switches the single port to the LB1 ANT port; via LB1 ANT is output to the first antenna ANT1 for transmission.
  • the received radio frequency signal enters from the first antenna ANT1 to the LB1 ANT port of the radio frequency PA Mid device; the radio frequency switch SP10T is switched to the contact 9, and passes through the duplexer to the B28A RX channel; to the radio frequency switch SP6T, the radio frequency switch SP6T switches the single Port to LNA3 channel; after being amplified by LNA3, the radio frequency switch 3P3T is switched to contact 1, and output to the LNA OUT1 port of the radio frequency PA Mid device; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR PRXE port.
  • the received RF signal enters from the second antenna ANT2 to the LB3 ANT port of the RF LFEM device; the RF switch SP6T is switched to contact 4, and after filtering by the filter, it goes to the RF switch SP3T#1; the RF switch SP3T#1 switches the single port , after being amplified by LNA1, to the radio frequency switch 3P3T; the radio frequency switch 3P3T is switched to contact 1, and output to the LNA OUT LB1 port of the radio frequency LFEM device; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR DRXE port.
  • the received radio frequency signal enters from the third antenna ANT3 to the second selection switch 422 of the first filter selection unit 420; the second selection switch 422 is switched to contact 4, and is filtered by the first filter 421 and then output to the RF PA Mid device PRX4 port; to the first selection switch 412, the first selection switch 412 is switched to a single port, after being amplified by the first low noise amplifier 411, to the radio frequency switch 3P3T; the radio frequency switch 3P3T is switched to the contact 3, to the radio frequency PA Mid device The LNA OUT3 port output; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR PRX1 port.
  • the received radio frequency signal enters from the fourth antenna ANT4, to the fourth selection switch 522 of the third filter selection unit 520; the fourth selection switch 522 is switched to the contact 4, and is filtered by the second filter 521 and then output to the radio frequency LFEM device DRX4 port; to the third selection switch 512, the third selection switch 512 is switched to a single port, after being amplified by the second low-noise amplifier 511, to the radio frequency switch 3P3T; the radio frequency switch 3P3T is switched to contact 3, to the LNA of the radio frequency LFEM device OUT LB3 port output; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR DRX1 port.
  • the first MIMO receiving module 40 is integrated in the transceiver module 20 .
  • the transceiver module 20 can be understood as a package structure, configured with at least one first input port LB RFIN and a plurality of output ports LNA OUT for connecting with the radio frequency transceiver 10, and a first antenna port LB1 for connecting with the first antenna ANT1 ANT and the second antenna port LB2 ANT for connection with the third antenna ANT3.
  • the transceiver module 20 includes a transmitting unit 210 , a second filter selection unit 220 , a second amplification unit 230 and a first switch unit 240 .
  • the input end of the first filter selection unit 420 is connected with the second antenna port LB2 ANT of the transceiver module 20, and the transmitting unit 210 is respectively connected with the first input port LB RFIN of the transceiver module 20 and the transmission path TX of the second filter selection unit 220 connected, the receiving channel RX of the second filter selection unit 220 is connected to the input of the second amplification unit 230, and the second filter selection unit 220 is also connected to the first antenna port LB1 ANT of the transceiver module 20.
  • the first switch unit 240 includes a plurality of first ends and a plurality of second ends, and a plurality of first ends of the first switch unit 240 are respectively connected to a plurality of output ports LNA OUT of the transceiver module 20 in one-to-one correspondence, and the first switch unit Multiple second terminals of 240 are respectively connected to the output terminals of the first amplifying unit 410 and the output terminal of the second amplifying unit 230, and the multiple input terminals of the first amplifying unit 410 are respectively connected to multiple output terminals of the first filter selection unit 420 One-to-one connection.
  • the transmitting unit 210 is configured to receive the low-band radio frequency signal output by the radio frequency transceiver 10, and amplify the received low-band 5G radio frequency signal or 4G radio frequency signal.
  • the second filter selection unit 220 is used to filter the radio frequency signal of the low frequency band received by the first antenna ANT1 and select and output at least one 5G radio frequency signal or 4G radio frequency signal of the low frequency band.
  • the radio frequency signal of the frequency band is filtered and processed, and at least one 5G radio frequency signal or 4G radio frequency signal of the low frequency band is selected to be output and radiated through the first antenna ANT1.
  • the second amplification unit 230 is configured to perform low-noise amplification processing on the low-frequency radio frequency signal filtered by the second filtering selection unit 220 .
  • the first switch unit 240 is used for selectively conducting the path between the first amplifying unit 410, the second amplifying unit 230 and the output port LNA OUT of the transceiver module 20.
  • the radio frequency transceiver 10 inputs the radio frequency signal of the low frequency band to the first input port LB RFIN of the transceiver module 20, after being amplified by the transmitting unit 210, it is output to the second filter selection unit 220 for filtering processing, and selects at least one low frequency band signal
  • the 5G radio frequency signal or the 4G radio frequency signal is output to the first antenna port LB1 ANT of the transceiver module 20, and is transmitted through the first antenna ANT1 to realize the transmission of the radio frequency signal of the low frequency band.
  • the first antenna ANT1 outputs the received low-frequency radio frequency signal to the first antenna port LB1 ANT of the transceiver module 20, and after filtering by the second filter selection unit 220, it is output to the second amplification unit 230 for amplification, and then passed through the second filter selection unit 220 for amplification.
  • a switch unit 240 outputs to the output port LNA OUT of the transceiver module 20, and outputs to the radio frequency transceiver 10, so as to realize the main reception of the 5G radio frequency signal or the 4G radio frequency signal of the low frequency band.
  • the third antenna ANT3 outputs the received low-frequency radio frequency signal to the second antenna port LB2 ANT of the transceiver module 20, and after filtering by the first filter selection unit 420, it is output to the first amplification unit 410 for low-noise amplification processing, and then Output to the output port LNA OUT of the transceiver module 20 through the first switch unit 240, and output to the radio frequency transceiver 10, so as to realize the main set MIMO reception of the 5G radio frequency signal in the low frequency band.
  • the first MIMO receiving module 40 is integrated into the transceiver module 20 to further improve device integration, reduce the board area occupied by the radio frequency system, and reduce the complexity of the system layout.
  • the second MIMO receiving module 50 is integrated into the diversity receiving module 30 .
  • the diversity receiving module 30 can be understood as a packaging structure, and is configured with a transmitting port LNA OUT LB for connecting with the radio frequency transceiver 10, a third antenna port LB3 ANT for connecting with the second antenna ANT2, and a third antenna port LB3 ANT for connecting with the fourth antenna ANT4 Connect the fourth antenna port LB4 ANT.
  • the diversity receiving module 30 includes a fourth filter selection unit 310 , a fourth amplification unit 320 and a second switch unit 330 .
  • the input terminal of the third filter selection unit 520 is connected to the fourth antenna port LB4 ANT of the diversity receiving module 30.
  • the fourth filter selection unit 310 is respectively connected to the third antenna port LB3 ANT of the diversity receiving module 30 and the input end of the fourth amplification unit 320.
  • the second switch unit 330 includes a plurality of first ends and a plurality of second ends, and a plurality of first ends of the second switch unit 330 are respectively connected to a plurality of transmitting ports LNA OUT LB of the diversity receiving module 30 in one-to-one correspondence, and the second Multiple second terminals of the switch unit 330 are respectively connected to the output terminal of the third amplification unit 510 and the output terminal of the fourth amplification unit 320 .
  • Multiple input terminals of the third amplification unit 510 are respectively connected to multiple output terminals of the third filter selection unit 520 in a one-to-one correspondence.
  • the fourth filtering selection unit 310 is configured to filter the low-band radio frequency signal received by the second antenna ANT2 and select and output at least one low-band 5G radio frequency signal or 4G radio frequency signal.
  • the fourth amplifying unit 320 is configured to perform low-noise amplification processing on the 5G radio frequency signal or the 4G radio frequency signal filtered by the fourth filtering selection unit 310 .
  • the second switch unit 330 is used for selectively conducting the path between the third amplifying unit 510, the fourth amplifying unit 320 and the transmitting port LNA OUT LB of the diversity receiving module 30.
  • the second antenna ANT2 outputs the received low-frequency radio frequency signal to the third antenna port LB3 ANT of the diversity receiving module 30, and after the filter processing by the fourth filter selection unit 310, it is output to the fourth amplifying unit 320 for amplification processing, Then output to the transmission port LNA OUT LB of the diversity receiving module 30 through the second switch unit 330, and output to the radio frequency transceiver 10, so as to realize diversity reception of 5G radio frequency signals or 4G radio frequency signals in the low frequency band.
  • the fourth antenna ANT4 outputs the received low-frequency radio frequency signal to the fourth antenna port LB4 ANT of the diversity receiving module 30, and after filtering by the third filter selection unit 520, it outputs the third amplifying unit 510 for low-noise amplification processing, and then Output to the transmit port LNA OUT LB of the diversity receiving module 30 through the second switch unit 330, and output to the radio frequency transceiver 10, so as to realize diversity MIMO reception of 5G radio frequency signals in the low frequency band.
  • the second MIMO receiving module 50 is integrated into the diversity receiving module 30 to further improve device integration, reduce the board area occupied by the radio frequency system, and reduce the complexity of system layout.
  • FIG 12 shows a radio frequency system in an embodiment.
  • the transceiver module 20 can be understood as a radio frequency PA Mid device integrating the first MIMO receiving module.
  • the RF PA Mid device can support the reception and transmission of low-frequency signals in multiple frequency bands, and realize the switching control of receiving and switching between multiple low-frequency signals, the switching control of transmitting, and the switching control between transmitting and receiving.
  • the plurality of low-frequency signals may include low-frequency signals of different frequency bands among 2G signals, 3G signals, 4G signals, and 5G signals.
  • the frequency bands of the plurality of low-frequency signals may include any one of the frequency bands among B5, B8, B12, B20, B26, B28A, B28B, B13, and B19.
  • the N5, N8, N20, and N28A in the 5G signal are the same as the B5, B8, B20, and B28A frequency bands in the 4G signal, and can share the same receiving path and transmitting path.
  • the first antenna port LB1 ANT of the RF PA Mid device is connected to the first antenna ANT1
  • the second antenna port LB2 ANT of the RF PA Mid device is connected to the third antenna ANT3, and an input port 4G LB RFIN of the RF PA Mid device is connected to the RF transceiver
  • the device 10 is connected, and at least one output port (comprising LNA OUT1, LNA OUT2, LNA OUT3) of the radio frequency PA Mid device is connected with the radio frequency transceiver 10.
  • the radio frequency PA Mid device is used to filter and amplify the low-frequency radio frequency signal sent by the radio frequency transceiver 10, output it to the first antenna port LB1 ANT, and transmit it through the first antenna ANT1 to realize multiple low-frequency radio frequency signals. launch control.
  • the first antenna port LB1 ANT of the radio frequency PA Mid device is also used to receive the radio frequency signal of the low frequency band received by the first antenna ANT1, after the radio frequency signal of the low frequency band is filtered and amplified, it is output to the radio frequency transceiver 10 through the output port, In order to realize the main set receiving control of multiple low-frequency signals.
  • the second antenna port LB2 ANT of the RF PA Mid device is used to receive the low-frequency 5G RF signal received by the third antenna ANT3. After filtering and amplifying the 5G RF signal, it is output through the output port LNA OUT1, LNA OUT2 or LNA OUT3 to the radio frequency transceiver 10, so as to realize the main set MIMO reception control of 5G radio frequency signals in multiple low frequency bands.
  • the diversity receiving module 30 can be understood as a radio frequency LFEM device integrating the second MIMO receiving module (the radio frequency LFEM device that supports low, medium and high frequency bands is adopted in FIG. device).
  • the radio frequency LFEM device can support the reception of low-frequency signals in multiple frequency bands, and realize the switching control of reception among multiple low-frequency signals.
  • the multiple low-frequency signals may include low-frequency signals of different frequency bands in the 4G signal and the 5G signal.
  • the frequency bands of the plurality of low-frequency signals may include any one of the frequency bands among B5, B8, B12, B20, B26, B28A, B28B, B13, and B19.
  • the N5, N8, N20, and N28A in the 5G signal are the same as the B5, B8, B20, and B28A in the 4G signal, and can share the same receiving channel.
  • the third antenna port LB3 ANT of the radio frequency LFEM device is connected with the second antenna ANT2, the fourth antenna port LB4 ANT of the radio frequency LFEM device is connected with the fourth antenna ANT4, the transmitting ports LNA OUT LB1, LNA OUT LB2, LNA OUT of the radio frequency LFEM device LB3 is connected to the radio frequency transceiver 10 respectively.
  • the third antenna port LB1 ANT of the RF LFEM device is used to receive the low-frequency signal received by the second antenna ANT2.
  • the low-frequency signal After the low-frequency signal is filtered and amplified, it is output to the RF transceiver through the transmitting port LNA OUT LB1, LNA OUT LB2 or LNA OUT LB3 device 10 to realize diversity reception control of multiple low frequency signals.
  • the fourth antenna port LB4 ANT of the radio frequency LFEM device is used to receive the 5G radio frequency signal in the low frequency band received by the fourth antenna ANT4.
  • the 5G radio frequency signal in the low frequency band After the 5G radio frequency signal in the low frequency band is amplified and filtered, it is output to the radio frequency transceiver through the transmitting port LNA OUT LB1
  • the device 10 is used to realize the diversity MIMO reception control of 5G radio frequency signals in multiple low frequency bands.
  • a radio frequency system supporting 4*4 MIMO reception of low-frequency radio frequency signals is constructed to improve the throughput of low-frequency radio frequency signals , and improve the integration of the device and reduce the loss of the signal on the external radio frequency line.
  • the radio frequency system based on the foregoing embodiments can support the 4*4 MIMO function of four antennas.
  • Figure 12 as an example to analyze the working principle of the 4*4MIMO function in the N28A frequency band:
  • the transmission signal is output from the TX0 LB1 port of the radio frequency transceiver 10, through the radio frequency line, to the 4G LB RFIN port of the radio frequency PA Mid device, and after the signal is amplified by the 4G LB PA, it is sent to the single port of the radio frequency switch SP9T; the radio frequency switch SP9T is switched to touch Point 9, to the B28A TX channel; through the internal radio frequency line, to the contact 2 of the radio frequency switch SPDT; the radio frequency switch SPDT switches the single port, and passes through the duplexer to the radio frequency switch SP10T; the radio frequency switch SP10T switches the single port to the LB1 ANT port; LB1 ANT port output to ANT1 antenna for transmission.
  • the received radio frequency signal enters from the first antenna ANT1 to the LB1 ANT port of the radio frequency PA Mid device; the radio frequency switch SP10T is switched to the contact 9, and passes through the duplexer to the B28A RX channel; to the radio frequency switch SP6T, the radio frequency switch SP6T switches the single Port to LNA3 channel; after being amplified by LNA3, the radio frequency switch 3P3T is switched to contact 1, and output to the LNA OUT1 port of the radio frequency PA Mid device; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR PRXE port.
  • the received RF signal enters from the second antenna ANT2 to the LB3 ANT port of the RF LFEM device; the RF switch SP6T is switched to contact 4, and after filtering by the filter, it goes to the RF switch SP3T#1; the RF switch SP3T#1 switches the single port , after being amplified by LNA1, to the radio frequency switch 3P3T; the radio frequency switch 3P3T is switched to contact 1, and output to the LNA OUT LB1 port of the radio frequency LFEM device; the received radio frequency signal enters the radio frequency transceiver 10 through the SDR DRXE port.
  • the received radio frequency signal enters from the third antenna ANT3, to the LB2 ANT port of the radio frequency PA Mid device, to the second selection switch 422; the second selection switch 422 is switched to the contact 4, and after filtering by the first filter 421, to the second selection switch 422 A selection switch 412, the first selection switch 412 is switched to a single port, after being amplified by the first low noise amplifier 411, it is sent to the radio frequency switch 3P3T; the radio frequency switch 3P3T is switched to the contact 3, and is output to the LNA OUT3 port of the radio frequency PA Mid device; The received radio frequency signal enters the radio frequency transceiver 10 through the SDR PRX1 port.
  • the received radio frequency signal enters from the fourth antenna ANT4, to the LB4 ANT port of the radio frequency LFEM device, to the fourth selection switch 522, and the fourth selection switch 522 is switched to the contact 4, and after filtering by the second filter 521, to the third Selector switch 512, the third selector switch 512 is switched to a single port, after being amplified by the second low noise amplifier 511, to the radio frequency switch 3P3T; the radio frequency switch 3P3T is switched to the contact 3, and output to the LNA OUT LB3 port of the radio frequency LFEM device;
  • the radio frequency signal enters the radio frequency transceiver 10 through the SDR DRX1 port.
  • Each filter in this embodiment of the present application may be a band-pass filter, a low-pass filter, or the like. It should be noted that, in the embodiment of the present application, the types of the filters are not further limited, and an appropriate filter can be selected according to the frequency band of the low-frequency signal to be filtered.
  • an embodiment of the present application further provides a communication device, on which the radio frequency system in any of the foregoing embodiments is set.
  • the throughput of the radio frequency system for low-frequency radio frequency signals is improved, and the device has a high degree of integration, which reduces the area of the substrate occupied by each device in the radio frequency system, and also simplifies the design of each device. Power supply, logic control, and PCB layout save costs.

Abstract

La présente invention concerne un système radiofréquence et un dispositif de communication. Le système radiofréquence comprend : un émetteur-récepteur radiofréquence (10) ; un module d'émission-réception (20), qui est respectivement connecté à l'émetteur-récepteur radiofréquence (10) et à une première antenne (ANT1) et est utilisé pour prendre en charge l'émission et la réception principale d'un signal radiofréquence de bande à basses fréquences ; un module de réception de diversité (30), qui est respectivement connecté à l'émetteur-récepteur radiofréquence (10) et à une deuxième antenne (ANT2) et est utilisé pour prendre en charge la réception de diversité du signal radiofréquence de bande à basses fréquences ; un premier module de réception MIMO (40), qui est respectivement connecté à l'émetteur-récepteur radiofréquence (10) et à une troisième antenne (ANT3) et est utilisé pour prendre en charge la réception MIMO principale du signal radiofréquence de bande à basses fréquences ; et un second module de réception MIMO (50), qui est respectivement connecté à l'émetteur-récepteur radiofréquence (10) et à une quatrième antenne (ANT4) et est utilisé pour prendre en charge la réception MIMO de diversité du signal radiofréquence de bande à basses fréquences.
PCT/CN2022/117226 2021-11-30 2022-09-06 Système radiofréquence et dispositif de communication WO2023098201A1 (fr)

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Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
CN113992229B (zh) * 2021-11-30 2023-03-17 Oppo广东移动通信有限公司 射频系统及通信设备
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634569A (zh) * 2015-12-31 2016-06-01 宇龙计算机通信科技(深圳)有限公司 实现载波聚合和wifi双频mimo的控制电路、终端
US20180019768A1 (en) * 2016-07-17 2018-01-18 Skyworks Solutions, Inc. Uplink carrier aggregation front-end architecture that supports simultaneous mimo
CN110572178A (zh) * 2019-09-06 2019-12-13 维沃移动通信有限公司 一种网络射频结构、射频控制方法及电子设备
CN112187311A (zh) * 2020-09-27 2021-01-05 Oppo广东移动通信有限公司 射频系统和通信设备
CN112436845A (zh) * 2020-12-02 2021-03-02 Oppo广东移动通信有限公司 射频L-PA Mid器件、射频收发系统和通信设备
WO2021100925A1 (fr) * 2019-11-22 2021-05-27 엘지전자 주식회사 Dispositif électronique à modules d'antenne 5g et module de communication
CN113992229A (zh) * 2021-11-30 2022-01-28 Oppo广东移动通信有限公司 射频系统及通信设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010225399B9 (en) * 2009-03-18 2014-11-06 Netgear, Inc. Multiple antenna system for wireless communication
KR102197339B1 (ko) * 2014-02-12 2020-12-31 한국전자통신연구원 모드 전환이 가능한 무선 송수신기
CN113300736B (zh) * 2021-05-19 2022-11-04 深圳市锐尔觅移动通信有限公司 射频收发系统及通信设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105634569A (zh) * 2015-12-31 2016-06-01 宇龙计算机通信科技(深圳)有限公司 实现载波聚合和wifi双频mimo的控制电路、终端
US20180019768A1 (en) * 2016-07-17 2018-01-18 Skyworks Solutions, Inc. Uplink carrier aggregation front-end architecture that supports simultaneous mimo
CN110572178A (zh) * 2019-09-06 2019-12-13 维沃移动通信有限公司 一种网络射频结构、射频控制方法及电子设备
WO2021100925A1 (fr) * 2019-11-22 2021-05-27 엘지전자 주식회사 Dispositif électronique à modules d'antenne 5g et module de communication
CN112187311A (zh) * 2020-09-27 2021-01-05 Oppo广东移动通信有限公司 射频系统和通信设备
CN112436845A (zh) * 2020-12-02 2021-03-02 Oppo广东移动通信有限公司 射频L-PA Mid器件、射频收发系统和通信设备
CN113992229A (zh) * 2021-11-30 2022-01-28 Oppo广东移动通信有限公司 射频系统及通信设备

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