WO2024152799A1 - Radio frequency front-end device, radio frequency transceiving system, and communication equipment - Google Patents
Radio frequency front-end device, radio frequency transceiving system, and communication equipment Download PDFInfo
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- WO2024152799A1 WO2024152799A1 PCT/CN2023/138076 CN2023138076W WO2024152799A1 WO 2024152799 A1 WO2024152799 A1 WO 2024152799A1 CN 2023138076 W CN2023138076 W CN 2023138076W WO 2024152799 A1 WO2024152799 A1 WO 2024152799A1
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- 238000004891 communication Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 30
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- 101100204282 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) Asm-1 gene Proteins 0.000 description 7
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Classifications
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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
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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
- H04B1/44—Transmit/receive switching
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- 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
Definitions
- the present application relates to the field of antenna technology, and in particular to a radio frequency front-end device, a radio frequency transceiver system and a communication device.
- 5G Fifth Generation Mobile Communication Technology
- 5G Fifth Generation Mobile Communication Technology
- the embodiments of the present application provide a radio frequency front-end device, a radio frequency transceiver system, and a communication device, which can avoid the throughput or EVM deterioration of the intermediate frequency signal receiving path, so that the high frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
- the present application provides a radio frequency front-end device, wherein the radio frequency front-end device is provided with a high frequency transmitting port, a first high frequency receiving port, a first intermediate frequency receiving port, a first antenna port, and a second antenna port; the radio frequency front-end device at least includes:
- a first switch circuit wherein a plurality of first ends of the first switch circuit are respectively connected to a first transceiver circuit, a first receiving circuit, and a second transceiver circuit, a second end of the first switch circuit is connected to a first antenna port, and is used for selectively conducting a radio frequency path between the first transceiver circuit and the first antenna; another second end of the first switch circuit is connected to a second antenna port, and is used for selectively conducting a radio frequency path between the first receiving circuit and a reference antenna, and simultaneously selecting a radio frequency path between the second transceiver circuit and the reference antenna, wherein the reference antenna is the first antenna or the second antenna;
- a first transceiver circuit is connected to the high-frequency transmission port and is used to amplify the power of the high-frequency signal from the high-frequency transmission port and output it through the first antenna port;
- a first receiving circuit is connected to the first high-frequency receiving port, and is used to filter and amplify the signal received from the second antenna port and output the high-frequency signal to the first high-frequency receiving port;
- the second transceiver circuit is connected to the first intermediate frequency receiving port, and is used to filter and amplify the signal from the second antenna port and output the intermediate frequency signal to the first intermediate frequency receiving port.
- the first switch circuit realizes high-frequency The gating operation of switching the signal receiving and transmitting states will not cause impedance discontinuity problems, thereby avoiding the throughput or EVM deterioration of the intermediate frequency signal receiving path corresponding to the second transceiver circuit, so that the high frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
- the present application provides a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, an antenna switching module, a low noise front end module and a radio frequency front end device as described in the first aspect; wherein,
- the RF transceiver is connected to the first antenna via the RF front-end device and the antenna switching module, forming at least a main set transmission path of high frequency band signals and a main set receiving path of the high frequency band signals;
- the RF transceiver is connected to the second antenna via the RF front-end device and the antenna switching module, forming at least a main set MIMO receiving path of the high frequency band signal, a main set receiving path of the mid-frequency band signal, and a main set transmitting path of the mid-frequency band signal;
- the RF transceiver is connected to the third antenna via the low noise front end module and the antenna switching module, forming at least a diversity receiving path for the high frequency band signal and a diversity receiving path for the mid frequency band signal;
- the RF transceiver is connected to the fourth antenna via the low noise front end module and the antenna switching module to form a diversity MIMO receiving path including at least the high frequency band signal;
- the first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.
- the RF transceiver system can realize the transmission processing of the intermediate frequency band signal and the high frequency band signal by only setting a single RF L-PA Mid device, realizing the dual connection of the high frequency band and the intermediate frequency band signal, and no additional external power amplifier module supporting the high frequency band is required to realize high frequency signal amplification.
- the cost can be reduced, the integration of the device can be improved, and the area of the substrate occupied by each device in the RF system can be reduced.
- the present application provides a communication device, comprising the radio frequency transceiver system as described in the second aspect.
- FIG1A is a schematic diagram of the architecture of an existing medium-high frequency MHB L-PA MID device provided in an embodiment of the present application;
- FIG1B is a schematic diagram of the architecture of another existing medium-high frequency MHB L-PA MID device provided in an embodiment of the present application;
- FIG2A is a schematic diagram of the architecture of a radio frequency front-end device provided in an embodiment of the present application.
- FIG2B is a schematic diagram of the architecture of a radio frequency front-end device provided in an embodiment of the present application.
- FIG3 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application.
- FIG4 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application.
- FIG5 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application.
- FIG6 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application.
- FIG7 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application.
- FIG8A is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application.
- FIG8B is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application.
- FIG9A is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application.
- FIG9B is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application.
- first and second used in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, a feature defined as “first” or “second” may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality” is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
- connection in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.
- the power amplifier module (Power Amplifier Modules including Duplexers With LNA, L-PA Mid) device with built-in RF low noise amplifier involved in the embodiments of the present application can be applied to a communication device with wireless communication function, which can be a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing device connected to a wireless modem, as well as various forms of user equipment (User Equipment, UE) (for example, a mobile phone), a mobile station (Mobile Station, MS), a network device, etc.
- User Equipment User Equipment
- UE User Equipment
- UE mobile phone
- MS mobile station
- Network devices may include base stations, access points, etc.
- the non-standalone (NSA) mode can include any of the following architectures: EN-DC, NE-DC, NGEN-DC, etc.
- DC stands for Dual Connectivity
- E stands for E-UTRA, i.e. 4G wireless access network
- N stands for NR, i.e. 5G new wireless
- NG stands for next generation core network, i.e. 5G core network.
- the core network is the 4G core network, the 4G base station is the main station, and the 5G base station is the auxiliary station.
- EN-DC refers to the dual connection between the 4G wireless access network and the 5G NR; under the NE-DC architecture, the core network is the 5G core network, the 5G base station is the main station, and the 4G base station is the auxiliary station.
- NE-DC refers to the dual connection between the 5G NR and the 4G wireless access network; under the NGEN-DC architecture, the core network is the 5G core network, the 4G base station is the main station, and the 5G base station is the auxiliary station.
- NGEN-DC refers to the dual connection between the 4G wireless access network and the 5G NR under the 5G core network.
- FIG. 1A and FIG. 1B are MHB L-PA Mid devices of the existing radio frequency transceiver system provided in the embodiment of the present application.
- FIG. 1 is a schematic diagram of a structure of a MHB L-PA Mid device (in the figure, PA is a power amplifier, LNA is a low noise amplifier, and Filter is a filter).
- the B3 band signal receiving path and the N41 band signal receiving path inside the MHB L-PA Mid device implement carrier aggregation CA through multi-on technology. Since the N41 band is a time division duplex TDD working mode, when N41 switches between transmit and receive modes, the switch device inside the MHB L-PA Mid device will perform a contact switching action (the example in the figure is the contact switching state indicated by the bidirectional arrow).
- the contact switching action causes discontinuity in the internal impedance of the switch device, thereby causing deterioration in the throughput or error vector magnitude EVM of the B3 receive path (the example in the figure is the path of a five-pointed star).
- an embodiment of the present application proposes a radio frequency front-end device, which aims to solve the problem of throughput or EVM degradation by optimizing the aforementioned impedance discontinuity problem.
- FIG2A is a schematic diagram of the structure of the first embodiment of the RF front-end device in the embodiment of the present application, wherein the RF front-end device is provided with a high-frequency transmitting port HB RFIN, a first high-frequency receiving port HB LNA OUT1, a first intermediate frequency receiving port MB LNA OUT1, a first antenna port ASM1 and a second antenna port ASM2; the RF front-end device at least includes:
- a first switch circuit 140 wherein a plurality of first ends of the first switch circuit 140 are respectively connected to the first transceiver circuit 110, the first receiving circuit 120, and the second transceiver circuit 130; a second end of the first switch circuit 140 is connected to the first antenna port ASM 1, and is used to select and conduct the radio frequency path between the first transceiver circuit 110 and the first antenna; another second end of the first switch circuit 140 is connected to the second antenna port ASM 2, and is used to select and conduct the radio frequency path between the first receiving circuit 120 and the reference antenna, and simultaneously select and conduct the radio frequency path between the second transceiver circuit 130 and the reference antenna, and the reference antenna is the first antenna or the second antenna;
- the first antenna port ASM 1 is used to connect to a first end of the antenna switching module ASM
- the second antenna port ASM 2 is used to connect to another first end of the antenna switching module ASM
- the four second ends of the antenna switching module ASM are used to connect to four antennas respectively.
- the first antenna is one of the four antennas
- the second antenna is one of the four antennas except the first antenna.
- the first antenna port ASM 1 is used to directly connect to the first antenna without passing through the ASM
- the second antenna port ASM 2 is used to connect to the second antenna without passing through the ASM.
- the multiple first ends of the first switching circuit 140 can be three first ends, and the three first ends correspond to contact 1, contact 2, and contact 3 respectively, and the multiple second ends can be two second ends, and the two second ends are contact 4 and contact 5 respectively; and contact 1 and contact 4 support gating, and contact 2, contact 3 and contact 5 support gating.
- the first transceiver circuit 110 is connected to contact 1
- the first receiving circuit 120 is connected to contact 2
- the second transceiver circuit 130 is connected to contact 3
- contact 4 is connected to the first antenna port ASM1
- contact 5 is connected to the second antenna port ASM2.
- the first switch circuit 140 is a 2P3T switch.
- the RF front-end device is the MHB L-PA Mid device.
- the high-frequency transmitting port HB RFIN is used to connect to the high-frequency signal transmitting port of the RF transceiver
- the first high-frequency receiving port HB LNA OUT1 is used to connect to the high-frequency signal receiving port of the RF transceiver
- the first intermediate frequency receiving port MB LNA OUT1 is used to connect to the intermediate frequency signal receiving port of the RF transceiver.
- the first transceiver circuit 110 is connected to the high-frequency transmitting port HB RFIN, and is used to perform power amplification processing on the high-frequency signal from the high-frequency transmitting port HB RFIN and output it through the first antenna port ASM 1;
- the high-frequency signal is a preset high-frequency signal in the non-independent networking mode; the preset high-frequency band includes Next one: N41, N40 frequency band.
- the first receiving circuit 120 is connected to the first high-frequency receiving port HB LNA OUT1, and is used for filtering and amplifying the signal received from the second antenna port ASM 2 and outputting the high-frequency signal to the first high-frequency receiving port HB LNA OUT1;
- the second transceiver circuit 130 is connected to the first intermediate frequency receiving port MB LNA OUT1, and is used for filtering and amplifying the signal from the second antenna port ASM 2 and outputting the intermediate frequency signal to the first intermediate frequency receiving port MB LNA OUT1.
- the intermediate frequency signal is a preset intermediate frequency signal in the non-independent networking mode; the preset intermediate frequency signal includes one of the following: B3, B1 frequency band.
- the RF front-end device may also include a controller, which is respectively connected to each switch circuit, each power amplifier, low noise amplifier and other devices of the RF front-end device, and is used to control the on and off of each switch circuit, control the working state of each power amplifier, and adjust the gain coefficient of each low noise amplifier.
- the controller can be a mobile industry processor interface (MIPI, Mobile Industry Processor Interface)-RF front-end control interface (RFFE, RF Front End Control Interface) control unit or a RF front-end control interface (RFFE, RF Front End Control Interface) control unit, which complies with the control protocol of the RFFE bus.
- MIPI Mobile Industry Processor Interface
- RFFE RF Front End Control Interface
- RFFE RF Front End Control Interface
- the RF MHB L-PA Mid device is also provided with a clock signal input pin CLK, a unidirectional/bidirectional data signal input or bidirectional pin SDATAS, a power supply pin VDD, a reference voltage pin VIO, etc., to realize the control of the power amplifier, each switch unit, and the low noise amplifier in the RF front-end device.
- the first switching circuit implements the gating operation of switching the high-frequency signal transceiver state without causing the problem of impedance discontinuity, thereby avoiding the throughput or EVM deterioration of the intermediate frequency signal receiving path corresponding to the second transceiver circuit, so that the high-frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
- the radio frequency front-end device is further provided with an intermediate frequency transmission port MB RFIN;
- the second transceiver circuit 130 is also connected to the intermediate frequency transmission port MB RFIN, and is used for power amplifying the intermediate frequency signal from the intermediate frequency transmission port MB RFIN and outputting it through the second antenna port ASM 2.
- the intermediate frequency transmission port MB RFIN is used to connect to the transmission port of the intermediate frequency band signal of the RF transceiver.
- the RF front-end device can also integrate the transmission path of the intermediate frequency signal, thereby eliminating the need for two chips to support the transmission of high-frequency signals and intermediate frequency signals respectively, thereby improving the integration of the RF front-end device.
- the second transceiver circuit 130 includes an intermediate frequency power amplifier (MP PA in the example in the figure), a first low noise amplifier (MB LNA1 in the example in the figure), and an intermediate frequency duplexer;
- MP PA intermediate frequency power amplifier
- MB LNA1 first low noise amplifier
- MB LNA1 intermediate frequency duplexer
- the intermediate frequency transmission port MB RFIN is connected to the input end of the intermediate frequency power amplifier, and the output end of the intermediate frequency power amplifier is connected to a first end of the intermediate frequency band duplexer;
- the other first end of the intermediate frequency duplexer is connected to the input end of the first low noise amplifier, and the output end of the first low noise amplifier is connected to the first intermediate frequency receiving port MB LNA OUT1;
- the second end of the intermediate frequency band duplexer is connected to a first end of the first switch circuit.
- the front-end RF device realizes the transmission and reception path of the mid-frequency band signal through the duplexer, power amplifier, and low-noise amplifier.
- the architecture diagram of another RF front-end device is further provided with a second high-frequency receiving port HB LNA OUT2;
- the first transceiver circuit 110 is also connected to the second high frequency receiving port HB LNA OUT2, and is used for filtering and amplifying the signal received from the first antenna port ASM 1 and outputting the high frequency signal to the second high frequency receiving port HB LNA OUT2.
- the second high-frequency receiving port HB LNA OUT2 is used to connect to any high-frequency band signal receiving port of the RF transceiver.
- the RF front-end device can inherit the receiving channels of two high-frequency signals, and the switch contacts of the receiving channels of the two high-frequency signals are not shared.
- the first transceiver circuit 110 includes a high-frequency power amplifier, a first high-frequency low-noise amplifier, a switch, and a first filter;
- the high-frequency transmitting port HB RFIN is connected to the input end of the high-frequency power amplifier, and the output end of the high-frequency power amplifier is connected to a first end of the switching switch;
- the other first end of the switching switch is connected to the input end of the first high-frequency low-noise amplifier, and the output end of the first high-frequency low-noise amplifier is connected to the second high-frequency receiving port HB LNA OUT2;
- the second end of the switch is connected to one end of the first filter, and the other end of the first filter is connected to a first end of the first switch circuit.
- the switch is a SPDT switch, the two first ends are respectively a first T port and a second T port, and the single second end is an S port.
- the RF front-end device can receive and send high-frequency band signals through a high-frequency power amplifier, a first high-frequency low-noise amplifier, a switching switch, and a first filter.
- the first receiving circuit includes a second low noise amplifier (HB LNA2 in the example in the figure) and a second filter (Filter2 in the example in the figure);
- HB LNA2 low noise amplifier
- Finter2 second filter
- the first intermediate frequency receiving port MB LNA OUT1 is connected to the output end of the second low noise amplifier, the input end of the low noise amplifier is connected to the first end of the second filter, and the second end of the second filter is connected to a first end of the first switching circuit.
- the RF front-end device can receive high-frequency band signals through the second low-noise amplifier and the second filter.
- FIG8A is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application, including:
- the RF transceiver is connected to the first antenna via the RF front-end device and the ASM, and comprises at least a high frequency
- the main set transmission path of the segment signal (the example in the figure is the N41 main set transmission path) and the main set receiving path of the high frequency band signal (the example in the figure is the N41 main set receiving path);
- the RF transceiver is connected to the second antenna via the RF front-end device and the ASM, forming at least a main set MIMO receiving path of the high frequency band signal (the example in the figure is the N41 main set MIMO receiving path), a main set receiving path of the mid-frequency band signal (the example in the figure is the B3 main set receiving path), and a main set transmitting path of the mid-frequency band signal (the example in the figure is the B3 main set transmitting path);
- the RF transceiver is connected to the third antenna via the low noise front end module and the ASM, forming at least a diversity receiving path for the high frequency band signal (the example in the figure is the N41 diversity receiving path) and a diversity receiving path for the mid frequency band signal (the example in the figure is the B3 diversity receiving path);
- the RF transceiver is connected to the fourth antenna via the low noise front end module and the ASM, forming a diversity MIMO receiving path (the example in the figure is an N41 diversity MIMO receiving path) including at least the high frequency band signal;
- the ASM can be a 4P5T switch, the first P port P1 is connected to ANT0, the second P port P2 is connected to ANT1, the third P port P3 is connected to ANT2, and the fourth P port P4 is connected to ANT3.
- the first T port T1 is connected to the first P port P1 and connected to the high frequency band signal transmission port of the RF front-end device;
- the second T port T2 is connected to the second P port P2 and connected to the integrated high frequency band signal reception + intermediate frequency band signal transmission and reception port of the RF front-end device;
- the third T port T3 is connected to the third P port P3 and connected to the diversity path reception port of the high frequency band signal of the LFEM;
- the fourth T port T4 is connected to the third P port P3 and connected to the diversity reception path port of the intermediate frequency band signal of the LFEM;
- the fifth T port T5 is connected to the fourth P port P4 and connected to the diversity MIMO reception path port of the high frequency band signal of the LFEM.
- FIG8B another schematic diagram of the architecture of a radio frequency transceiver system
- the main transmission path of the high-frequency band signal (the example in the figure is the N41 main transmission path) is realized through the RF transceiver, the high-frequency band power amplifier HB PA, the switching switch, the first filter Filter1, ASM and ANT0;
- the main set receiving path of the high-frequency band signal (the example in the figure is the N41 main set receiving path) is realized through ANT1, ASM, the first filter Filter1, the first high-frequency band low-noise amplifier HB LNA1 and the RF transceiver;
- the main set MIMO receiving path of the high-frequency band signal (the example in the figure is the N41 main set MIMO receiving path) is realized through ANT1, ASM, the second filter Filter2, the second high-frequency band low-noise amplifier HB LNA2 and the RF transceiver;
- the diversity receiving path of the high-frequency band signal (the example in the figure is the N41 diversity receiving path) is realized through ANT2, ASM, the third filter Filter3, the third high-frequency band low-noise amplifier HB LNA3 and the RF transceiver;
- the diversity MIMO receiving path of the high-frequency band signal (the example in the figure is the N41 diversity MIMO receiving path) is realized through ANT3, ASM, the fourth filter Filter4, the fourth high-frequency band low-noise amplifier HB LNA4 and the RF transceiver;
- the main transmission path of the IF signal (the example in the figure is the B3 main transmission path) is realized through the RF transceiver, the IF power amplifier MB PA, the switching switch, the IF duplexer, the ASM and the ANT1;
- the main set receiving path of the intermediate frequency band signal (the example in the figure is the B3 main set receiving path) is realized through ANT1, ASM, intermediate frequency band duplexer, the first intermediate frequency band low noise amplifier MB LNA1 and RF transceiver;
- the diversity receiving path of the intermediate frequency band signal (the example in the figure is the B3 diversity receiving path) is realized by ANT2, ASM, the fifth filter Filter5, the second intermediate frequency band low noise amplifier HB LNA2 and the RF transceiver;
- the RF transceiver system can realize the transmission processing of the mid-frequency band signal and the high-frequency band signal by only setting a single RF L-PA Mid device, realize the dual connection of the high-frequency band and mid-frequency band signals, and can realize the 4*4MIMO function of the high-frequency band signal, without the need for an additional external power amplifier module supporting the high-frequency band to realize high-frequency signal amplification.
- the cost can be reduced, the integration of the device can be improved, and the area of the substrate occupied by each device in the RF system can be reduced.
- FIG9A another schematic diagram of the architecture of a radio frequency transceiver system
- the RF transceiver is connected to the first antenna ANT0 via the low noise front end module and the ASM to form a main set MIMO receiving path including the intermediate frequency band signal (the example in the figure is the B3 main set MIMO receiving path);
- the RF transceiver is connected to the fourth antenna ANT3 via the low noise front end module and the ASM, and also constitutes a diversity MIMO receiving path for the intermediate frequency band signal (the example in the figure is the B3 diversity MIMO receiving path).
- the ASM can be a 4P7T switch, the first P port P1 is connected to ANT0, the second P port P2 is connected to ANT1, the third P port P3 is connected to ANT2, the fourth P port P4 is connected to ANT3, the first T port T1 is connected to the first P port P1 and connected to the high frequency band signal transmission port of the RF front-end device; the second T port T2 is connected to the second P port P2 and connected to the integrated high frequency band signal receiving + intermediate frequency band signal transceiving port of the RF front-end device; the third T port T3 is connected to the third P port P3 and connected to the diversity path receiving port of the high frequency band signal of the LFEM; the fourth T port T4 is connected to the third P port P3 and connected to the diversity receiving path port of the intermediate frequency band signal of the LFEM; the fifth T port T5 is connected to the fourth P port P4 and connected to the diversity MIMO receiving path port of the high frequency band signal of the LFEM; in addition,
- the sixth T port T6 is connected to the first P port P1 and is connected to the main set MIMO receiving path port of the intermediate frequency band signal of the LFEM;
- the seventh T port T7 is connected to the fourth P port P4 and is connected to a diversity MIMO receiving path port of the intermediate frequency band signal of the LFEM.
- FIG9B another schematic diagram of the architecture of a radio frequency transceiver system
- the main set MIMO receiving path of the intermediate frequency band signal (the example in the figure is the B3 main set MIMO receiving path) is realized through ANT0, ASM, the sixth filter Filter6, the third intermediate frequency low noise amplifier MB LNA3 and the RF transceiver;
- the diversity MIMO receiving path of the intermediate frequency band signal (the example in the figure is the B3 diversity MIMO receiving path) is realized through ANT3, ASM, the seventh filter Filter7, the fourth intermediate frequency low noise amplifier MB LNA4 and the RF transceiver.
- the RF transceiver system can support the 4*4 MIMO function of the mid-frequency band signal.
- An embodiment of the present application also provides a communication device, on which the RF transceiver system of any of the above embodiments is provided.
- the first switching circuit implements the gating operation of switching the high-frequency signal transceiver state without causing impedance discontinuity problems, thereby avoiding the throughput or EVM deterioration of the intermediate frequency signal receiving path corresponding to the second transceiver circuit, so that the high-frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
- the communication equipment only needs to set up one RF L-PA Mid device to realize the simultaneous transmission and processing of 4G signals and 5G signals in any intermediate frequency band, that is, to realize the dual connection of 5G band and 4G signals in the intermediate frequency band, and to realize the amplification of 5G signals without the need for an additional external power amplifier module supporting the 5G band.
- the cost can be reduced, the integration of the device can be improved, and the area of the substrate occupied by each device in the radio frequency system can be reduced.
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- Transceivers (AREA)
Abstract
Disclosed in the present application are a radio frequency front-end device, a radio frequency transceiving system, and communication equipment, which are used for a high-frequency signal transceiving path and an intermediate-frequency signal receiving path. A high-frequency signal transmitting path and a high-frequency signal receiving path have no common contacts in a switch circuit, such that a gating operation of the switch circuit to achieve high-frequency signal transceiving state switching does not cause the problem of impedance discontinuity. In this way, throughput or EVM deteriorations of the intermediate-frequency signal receiving path can be avoided, such that the high-frequency signal receiving path and the intermediate-frequency signal receiving path can maintain stable multi-on, so as to achieve CA in a receiving state.
Description
本申请涉及天线技术领域,特别是涉及一种射频前端器件、射频收发系统和通信设备。The present application relates to the field of antenna technology, and in particular to a radio frequency front-end device, a radio frequency transceiver system and a communication device.
2019年被定义为第五代移动通信技术(5th Generation Mobile Communication Technology,简称5G)通信元年,全球各大通信运营商也在今年正式拉开5G移动通信网络的建设,由于考虑到5G独立(stand alone,SA)组网架构成本太高,国内外绝大多数运营商选择前期采用非(Non-standalone,NSA)组网架构,也即EN-DC的形式(4G、5G双连接)。2019 is defined as the first year of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology, referred to as 5G). Major global communication operators have also officially started the construction of 5G mobile communication networks this year. Considering that the cost of 5G independent (stand alone, SA) networking architecture is too high, most operators at home and abroad choose to adopt non-standalone (NSA) networking architecture in the early stage, that is, the EN-DC form (4G, 5G dual connection).
为了进一步提升频谱效率,运营商开始对SUB 3GHz进行refarming,而覆盖更好的SUB1GHz成为很多运营商重耕的重点。国内运营商要求2000元价位的移动终端中需要支持5G重耕N41频段,并要求支持DC_B3-N41 EN-DC组合,由于是全新的需求业内都在设计自己的射频前端架构。In order to further improve spectrum efficiency, operators began to refarm SUB 3GHz, and SUB1GHz with better coverage became the focus of many operators. Domestic operators require that mobile terminals priced at 2,000 yuan must support 5G refarming of the N41 band and support the DC_B3-N41 EN-DC combination. Since this is a new requirement, the industry is designing its own RF front-end architecture.
发明内容Summary of the invention
本申请实施例提供一种射频前端器件、射频收发系统及通信设备,可以避免中频信号接收通路的吞吐量或者EVM恶化,使得高频信号接收通路和中频信号接收通路可以保持稳定的multi-on以实现接收状态下的CA。The embodiments of the present application provide a radio frequency front-end device, a radio frequency transceiver system, and a communication device, which can avoid the throughput or EVM deterioration of the intermediate frequency signal receiving path, so that the high frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
第一方面,本申请提供一种射频前端器件,所述射频前端器件设置有高频发射端口、第一高频接收端口、第一中频接收端口、第一天线端口以及第二天线端口;射频前端器件至少包括:In a first aspect, the present application provides a radio frequency front-end device, wherein the radio frequency front-end device is provided with a high frequency transmitting port, a first high frequency receiving port, a first intermediate frequency receiving port, a first antenna port, and a second antenna port; the radio frequency front-end device at least includes:
第一开关电路,第一开关电路的多个第一端分别与第一收发电路、第一接收电路、第二收发电路连接,第一开关电路的一第二端与第一天线端口连接,用于选择导通第一收发电路与第一天线之间的射频通路;第一开关电路的另一第二端与第二天线端口连接,用于选择导通第一接收电路与参考天线之间的射频通路、同时选择导通第二收发电路与所述参考天线之间的射频通路,所述参考天线为所述第一天线或者第二天线;A first switch circuit, wherein a plurality of first ends of the first switch circuit are respectively connected to a first transceiver circuit, a first receiving circuit, and a second transceiver circuit, a second end of the first switch circuit is connected to a first antenna port, and is used for selectively conducting a radio frequency path between the first transceiver circuit and the first antenna; another second end of the first switch circuit is connected to a second antenna port, and is used for selectively conducting a radio frequency path between the first receiving circuit and a reference antenna, and simultaneously selecting a radio frequency path between the second transceiver circuit and the reference antenna, wherein the reference antenna is the first antenna or the second antenna;
第一收发电路,与高频发射端口连接,用于对来自高频发射端口的高频信号进行功率放大处理并通过第一天线端口输出;A first transceiver circuit is connected to the high-frequency transmission port and is used to amplify the power of the high-frequency signal from the high-frequency transmission port and output it through the first antenna port;
第一接收电路,与第一高频接收端口连接,用于对接收到的来自第二天线端口的信号进行滤波、放大处理并输出高频信号至第一高频接收端口;A first receiving circuit is connected to the first high-frequency receiving port, and is used to filter and amplify the signal received from the second antenna port and output the high-frequency signal to the first high-frequency receiving port;
第二收发电路,与第一中频接收端口连接,用于对来自所述第二天线端口的信号进行滤波、放大处理并输出中频信号至第一中频接收端口。The second transceiver circuit is connected to the first intermediate frequency receiving port, and is used to filter and amplify the signal from the second antenna port and output the intermediate frequency signal to the first intermediate frequency receiving port.
可以看出,本申请实施例中,由于第一收发电路对应的高频信号发射通路和第一接收通路对应的高频信号接收通路在第一开关电路中无共用触点,从而第一开关电路实现高频
信号收发状态切换的选通操作不会产生阻抗不连续的问题,如此可以避免第二收发电路对应的中频信号接收通路的吞吐量或者EVM恶化,使得高频信号接收通路和中频信号接收通路可以保持稳定的multi-on以实现接收状态下的CA。It can be seen that in the embodiment of the present application, since the high-frequency signal transmitting path corresponding to the first transceiver circuit and the high-frequency signal receiving path corresponding to the first receiving path have no common contacts in the first switch circuit, the first switch circuit realizes high-frequency The gating operation of switching the signal receiving and transmitting states will not cause impedance discontinuity problems, thereby avoiding the throughput or EVM deterioration of the intermediate frequency signal receiving path corresponding to the second transceiver circuit, so that the high frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
第二方面,本申请提供一种第一天线、第二天线、第三天线、第四天线、射频收发器、天线切换模块、低噪声前端模块和如第一方面所述的射频前端器件;其中,In a second aspect, the present application provides a first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, an antenna switching module, a low noise front end module and a radio frequency front end device as described in the first aspect; wherein,
所述射频收发器经所述射频前端器件、所述天线切换模块与第一天线连接,构成至少包括高频段信号的主集发射通路和所述高频段信号的主集接收通路;The RF transceiver is connected to the first antenna via the RF front-end device and the antenna switching module, forming at least a main set transmission path of high frequency band signals and a main set receiving path of the high frequency band signals;
所述射频收发器经所述射频前端器件、所述天线切换模块与第二天线连接,构成至少包括所述高频段信号的主集MIMO接收通路、中频段信号的主集接收通路,以及所述中频段信号的主集发射通路;The RF transceiver is connected to the second antenna via the RF front-end device and the antenna switching module, forming at least a main set MIMO receiving path of the high frequency band signal, a main set receiving path of the mid-frequency band signal, and a main set transmitting path of the mid-frequency band signal;
所述射频收发器经所述低噪声前端模块、所述天线切换模块与第三天线连接,构成至少包括所述高频段信号的分集接收通路和所述中频段信号的分集接收通路;The RF transceiver is connected to the third antenna via the low noise front end module and the antenna switching module, forming at least a diversity receiving path for the high frequency band signal and a diversity receiving path for the mid frequency band signal;
所述射频收发器经所述低噪声前端模块、所述天线切换模块与第四天线连接,构成至少包括所述高频段信号的分集MIMO接收通路;The RF transceiver is connected to the fourth antenna via the low noise front end module and the antenna switching module to form a diversity MIMO receiving path including at least the high frequency band signal;
其中,第一中频段信号和第二中频段信号为非独立组网模式下的两个不同预设中频段的信号。The first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.
可以看出,本申请实施例中,射频收发系统仅设置单个射频L-PA Mid器件就可以实现中频段信号和高频段信号的发射处理,实现了高频段和中频段的信号的双连接,不需要额外采用外挂的支持高频段的功率放大器模块来实现高频信号放大。基于上述射频收发系统,可以降低了成本、提高了器件的集成度,减小了射频系统中各器件占用基板的面积。It can be seen that in the embodiment of the present application, the RF transceiver system can realize the transmission processing of the intermediate frequency band signal and the high frequency band signal by only setting a single RF L-PA Mid device, realizing the dual connection of the high frequency band and the intermediate frequency band signal, and no additional external power amplifier module supporting the high frequency band is required to realize high frequency signal amplification. Based on the above RF transceiver system, the cost can be reduced, the integration of the device can be improved, and the area of the substrate occupied by each device in the RF system can be reduced.
第三方面,本申请提供一种通信设备,包括如第二方面所述的射频收发系统。In a third aspect, the present application provides a communication device, comprising the radio frequency transceiver system as described in the second aspect.
图1A为本申请实施例提供的一种现有中高频MHB L-PA MID器件的架构示意图;FIG1A is a schematic diagram of the architecture of an existing medium-high frequency MHB L-PA MID device provided in an embodiment of the present application;
图1B为本申请实施例提供的另一种现有中高频MHB L-PA MID器件的架构示意图;FIG1B is a schematic diagram of the architecture of another existing medium-high frequency MHB L-PA MID device provided in an embodiment of the present application;
图2A为本申请实施例提供的一种射频前端器件的架构示意图;FIG2A is a schematic diagram of the architecture of a radio frequency front-end device provided in an embodiment of the present application;
图2B为本申请实施例提供的一种射频前端器件的架构示意图;FIG2B is a schematic diagram of the architecture of a radio frequency front-end device provided in an embodiment of the present application;
图3为本申请实施例提供的另一种射频前端器件的架构示意图;FIG3 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application;
图4为本申请实施例提供的另一种射频前端器件的架构示意图;FIG4 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application;
图5为本申请实施例提供的另一种射频前端器件的架构示意图;FIG5 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application;
图6为本申请实施例提供的另一种射频前端器件的架构示意图;FIG6 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application;
图7为本申请实施例提供的另一种射频前端器件的架构示意图;FIG7 is a schematic diagram of the architecture of another RF front-end device provided in an embodiment of the present application;
图8A为本申请实施例提供的一种射频收发系统的架构示意图;FIG8A is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application;
图8B为本申请实施例提供的一种射频收发系统的架构示意图;FIG8B is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application;
图9A为本申请实施例提供的一种射频收发系统的架构示意图;FIG9A is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application;
图9B为本申请实施例提供的一种射频收发系统的架构示意图。
FIG9B is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application.
为使本申请的目的、技术方案和优点更加清楚明白,下文中将结合附图对本申请的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.
为了便于理解本申请,下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的实施例。但是,本申请可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使本申请的公开内容更加透彻全面。In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本申请。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
可以理解,本申请所使用的术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或隐含地包括至少一个该特征。在本申请的描述中,“多个”的含义是至少两个,例如两个、三个等,除非另有明确具体的限定。It is understood that the terms "first" and "second" used in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
可以理解,以下实施例中的“连接”,如果被连接的电路、模块、单元等相互之间具有电信号或数据的传递,则应理解为“电连接”、“通信连接”等。It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.
在此使用时,单数形式的“一”、“一个”和“所述/该”也可以包括复数形式,除非上下文清楚指出另外的方式。还应当理解的是,术语“包括/包含”或“具有”等指定所陈述的特征、整体、步骤、操作、组件、部分或它们的组合的存在,但是不排除存在或添加一个或更多个其他特征、整体、步骤、操作、组件、部分或它们的组合的可能性。同时,在本说明书中使用的术语“和/或”包括相关所列项目的任何及所有组合。When used herein, the singular forms "a", "an", and "said/the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include/comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and/or" used in this specification includes any and all combinations of the relevant listed items.
本申请实施例涉及的射频内置低噪声放大器的功率放大器模块(Power Amplifier Modules including Duplexers With LNA,L-PA Mid)器件可以应用到具有无线通信功能的通信设备,该通信设备可以为手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备,以及各种形式的用户设备(User Equipment,UE)(例如,手机)、移动台(Mobile Station,MS)、网络设备等等。为方便描述,上面提到的设备统称为通信设备。网络设备可以包括基站、接入点等。The power amplifier module (Power Amplifier Modules including Duplexers With LNA, L-PA Mid) device with built-in RF low noise amplifier involved in the embodiments of the present application can be applied to a communication device with wireless communication function, which can be a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing device connected to a wireless modem, as well as various forms of user equipment (User Equipment, UE) (for example, a mobile phone), a mobile station (Mobile Station, MS), a network device, etc. For the convenience of description, the above-mentioned devices are collectively referred to as communication devices. Network devices may include base stations, access points, etc.
非独立组网(NSA,non-Standalone)模式可以包括如以下任一架构:EN-DC、NE-DC、NGEN-DC等。其中,DC表示Dual Connectivity即双连接;E代表E-UTRA,即4G无线接入网;N代表NR,即5G新无线;NG代表下一代核心网,即5G核心网。The non-standalone (NSA) mode can include any of the following architectures: EN-DC, NE-DC, NGEN-DC, etc. Among them, DC stands for Dual Connectivity; E stands for E-UTRA, i.e. 4G wireless access network; N stands for NR, i.e. 5G new wireless; NG stands for next generation core network, i.e. 5G core network.
在EN-DC架构下,核心网为4G核心网,4G基站为主站,5G基站为辅站,EN-DC指4G无线接入网与5G NR的双连接;在NE-DC架构下,核心网为5G核心网,5G基站为主站,4G基站为辅站,NE-DC指5G NR与4G无线接入网的双连接;在NGEN-DC架构下,核心网为5G核心网,4G基站为主站,5G基站为辅站,NGEN-DC指在5G核心网下的4G无线接入网与5G NR的双连接。Under the EN-DC architecture, the core network is the 4G core network, the 4G base station is the main station, and the 5G base station is the auxiliary station. EN-DC refers to the dual connection between the 4G wireless access network and the 5G NR; under the NE-DC architecture, the core network is the 5G core network, the 5G base station is the main station, and the 4G base station is the auxiliary station. NE-DC refers to the dual connection between the 5G NR and the 4G wireless access network; under the NGEN-DC architecture, the core network is the 5G core network, the 4G base station is the main station, and the 5G base station is the auxiliary station. NGEN-DC refers to the dual connection between the 4G wireless access network and the 5G NR under the 5G core network.
为了方便说明,本申请实施例中的非独立组网模式以EN-DC架构为例进行说明。For the convenience of explanation, the non-independent networking mode in the embodiment of the present application is explained using the EN-DC architecture as an example.
目前,图1A和图1B是本申请实施例提供的现有射频收发系统的MHB L-PA Mid器件
的结构示意图(图中PA为功率放大器、LNA为低噪声放大器、Filter为滤波器),该MHB L-PA Mid器件内部的B3频段信号接收通路与N41频段信号接收通路通过multi-on技术实现载波聚合CA,由于N41频段是时分复用TDD工作模式,N41进行发射和接收模式切换时,该MHB L-PA Mid器件内部的开关器件会执行触点切换动作(图中示例为双向箭头所指示的触点切换状态),由于N41收发通路有共用触点,使得触点切换动作造成开关器件内部阻抗不连续,进而造成B3接收通路吞吐量或者误差向量幅度EVM恶化(图中示例为五角星的通路)。At present, FIG. 1A and FIG. 1B are MHB L-PA Mid devices of the existing radio frequency transceiver system provided in the embodiment of the present application. FIG. 1 is a schematic diagram of a structure of a MHB L-PA Mid device (in the figure, PA is a power amplifier, LNA is a low noise amplifier, and Filter is a filter). The B3 band signal receiving path and the N41 band signal receiving path inside the MHB L-PA Mid device implement carrier aggregation CA through multi-on technology. Since the N41 band is a time division duplex TDD working mode, when N41 switches between transmit and receive modes, the switch device inside the MHB L-PA Mid device will perform a contact switching action (the example in the figure is the contact switching state indicated by the bidirectional arrow). Since the N41 transmit and receive paths have shared contacts, the contact switching action causes discontinuity in the internal impedance of the switch device, thereby causing deterioration in the throughput or error vector magnitude EVM of the B3 receive path (the example in the figure is the path of a five-pointed star).
针对上述问题,本申请实施例提出一种射频前端器件,旨在通过优化前述阻抗不连续问题,进而解决吞吐量或者EVM恶化的问题。In view of the above problems, an embodiment of the present application proposes a radio frequency front-end device, which aims to solve the problem of throughput or EVM degradation by optimizing the aforementioned impedance discontinuity problem.
图2A为本申请实施例中射频前端器件第一实施例的结构示意图,所述射频前端器件设置有高频发射端口HB RFIN、第一高频接收端口HB LNA OUT1、第一中频接收端口MB LNA OUT1、第一天线端口ASM1以及第二天线端口ASM2;射频前端器件至少包括:FIG2A is a schematic diagram of the structure of the first embodiment of the RF front-end device in the embodiment of the present application, wherein the RF front-end device is provided with a high-frequency transmitting port HB RFIN, a first high-frequency receiving port HB LNA OUT1, a first intermediate frequency receiving port MB LNA OUT1, a first antenna port ASM1 and a second antenna port ASM2; the RF front-end device at least includes:
第一开关电路140,第一开关电路140的多个第一端分别与第一收发电路110、第一接收电路120、第二收发电路130连接,第一开关电路140的一第二端与第一天线端口ASM 1连接,用于选择导通第一收发电路110与第一天线之间的射频通路;第一开关电路140的另一第二端与第二天线端口ASM 2连接,用于选择导通第一接收电路120与参考天线之间的射频通路、同时选择导通第二收发电路130与所述参考天线之间的射频通路,所述参考天线为所述第一天线或者第二天线;A first switch circuit 140, wherein a plurality of first ends of the first switch circuit 140 are respectively connected to the first transceiver circuit 110, the first receiving circuit 120, and the second transceiver circuit 130; a second end of the first switch circuit 140 is connected to the first antenna port ASM 1, and is used to select and conduct the radio frequency path between the first transceiver circuit 110 and the first antenna; another second end of the first switch circuit 140 is connected to the second antenna port ASM 2, and is used to select and conduct the radio frequency path between the first receiving circuit 120 and the reference antenna, and simultaneously select and conduct the radio frequency path between the second transceiver circuit 130 and the reference antenna, and the reference antenna is the first antenna or the second antenna;
其中,所述第一天线端口ASM 1用于连接天线切换模块ASM的一第一端,第二天线端口ASM 2用于连接天线切换模块ASM的另一第一端,天线切换模块ASM的四个第二端用于分别连接四个天线。第一天线为四个天线中的一个,第二天线为四个天线中除第一天线之外的一个。或者,所述第一天线端口ASM 1用于直接与第一天线连接且无需哦通过ASM,第二天线端口ASM 2用于与第二天线连接且无需通过ASM。The first antenna port ASM 1 is used to connect to a first end of the antenna switching module ASM, the second antenna port ASM 2 is used to connect to another first end of the antenna switching module ASM, and the four second ends of the antenna switching module ASM are used to connect to four antennas respectively. The first antenna is one of the four antennas, and the second antenna is one of the four antennas except the first antenna. Alternatively, the first antenna port ASM 1 is used to directly connect to the first antenna without passing through the ASM, and the second antenna port ASM 2 is used to connect to the second antenna without passing through the ASM.
其中,如图2B所示的另一种前端射频器件的架构示意图,第一开关电路140的多个第一端可以为3个第一端,该3个第一端分别对应触点1、触点2、触点3,多个第二端可以为2个第二端,该2个第二端分别为触点4和触点5;且触点1与触点4支持选通,触点2、触点3与触点5支持选通,此外,第一收发电路110与触点1连接,第一接收电路120与触点2连接,第二收发电路130与触点3连接,触点4与第一天线端口ASM1连接,触点5与第二天线端口ASM2连接。Among them, as shown in the architectural schematic diagram of another front-end RF device in Figure 2B, the multiple first ends of the first switching circuit 140 can be three first ends, and the three first ends correspond to contact 1, contact 2, and contact 3 respectively, and the multiple second ends can be two second ends, and the two second ends are contact 4 and contact 5 respectively; and contact 1 and contact 4 support gating, and contact 2, contact 3 and contact 5 support gating. In addition, the first transceiver circuit 110 is connected to contact 1, the first receiving circuit 120 is connected to contact 2, the second transceiver circuit 130 is connected to contact 3, contact 4 is connected to the first antenna port ASM1, and contact 5 is connected to the second antenna port ASM2.
其中,所述第一开关电路140为2P3T开关。The first switch circuit 140 is a 2P3T switch.
其中,射频前端器件为MHB L-PA Mid器件。Among them, the RF front-end device is the MHB L-PA Mid device.
其中,高频发射端口HB RFIN用于与射频收发器的高频段信号发射端口连接,第一高频接收端口HB LNA OUT1用于与射频收发器的高频段信号接收端口连接,第一中频接收端口MB LNA OUT1用于与射频收发器的中频段信号接收端口连接。第一收发电路110,与高频发射端口HB RFIN连接,用于对来自高频发射端口HB RFIN的高频信号进行功率放大处理并通过第一天线端口ASM 1输出;The high-frequency transmitting port HB RFIN is used to connect to the high-frequency signal transmitting port of the RF transceiver, the first high-frequency receiving port HB LNA OUT1 is used to connect to the high-frequency signal receiving port of the RF transceiver, and the first intermediate frequency receiving port MB LNA OUT1 is used to connect to the intermediate frequency signal receiving port of the RF transceiver. The first transceiver circuit 110 is connected to the high-frequency transmitting port HB RFIN, and is used to perform power amplification processing on the high-frequency signal from the high-frequency transmitting port HB RFIN and output it through the first antenna port ASM 1;
其中,所述高频信号为非独立组网模式下的预设高频的信号;所述预设高频段包括以
下之一:N41、N40频段。The high-frequency signal is a preset high-frequency signal in the non-independent networking mode; the preset high-frequency band includes Next one: N41, N40 frequency band.
第一接收电路120,与第一高频接收端口HB LNA OUT1连接,用于对接收到的来自第二天线端口ASM 2的信号进行滤波、放大处理并输出高频信号至第一高频接收端口HB LNA OUT1;The first receiving circuit 120 is connected to the first high-frequency receiving port HB LNA OUT1, and is used for filtering and amplifying the signal received from the second antenna port ASM 2 and outputting the high-frequency signal to the first high-frequency receiving port HB LNA OUT1;
第二收发电路130,与第一中频接收端口MB LNA OUT1连接,用于对来自第二天线端口ASM 2的信号进行滤波、放大处理并输出中频信号至第一中频接收端口MB LNA OUT1。The second transceiver circuit 130 is connected to the first intermediate frequency receiving port MB LNA OUT1, and is used for filtering and amplifying the signal from the second antenna port ASM 2 and outputting the intermediate frequency signal to the first intermediate frequency receiving port MB LNA OUT1.
其中,所述中频信号为所述非独立组网模式下的预设中频的信号;所述预设中频信号包括以下之一:B3、B1频段。Among them, the intermediate frequency signal is a preset intermediate frequency signal in the non-independent networking mode; the preset intermediate frequency signal includes one of the following: B3, B1 frequency band.
其中,射频前端器件还可以包括控制器,该控制器分别与射频前端器件的各开关电路、各功率放大器、低噪声放大器等器件连接,用于控制各开关电路的通断,以及控制各功率放大器的工作状态,以及调节各低噪声放大器的增益系数。控制器可以为移动行业处理器接口(MIPI,Mobile Industry Processor Interface)-射频前端控制接口(RFFE,RF Front End Control Interface)控制单元或射频前端控制接口(RFFE,RF Front End Control Interface)控制单元,其符合RFFE总线的控制协议。当控制器为MIPI-RFFE控制单元或RFFE控制单元时,射频MHB L-PA Mid器件还设置有时钟信号的输入引脚CLK、单/双向数据信号的输入或双向引脚SDATAS、电源引脚VDD、参考电压引脚VIO等等,以实现对射频前端器件中的功率放大器、各开关单元、低噪声放大器的控制。Among them, the RF front-end device may also include a controller, which is respectively connected to each switch circuit, each power amplifier, low noise amplifier and other devices of the RF front-end device, and is used to control the on and off of each switch circuit, control the working state of each power amplifier, and adjust the gain coefficient of each low noise amplifier. The controller can be a mobile industry processor interface (MIPI, Mobile Industry Processor Interface)-RF front-end control interface (RFFE, RF Front End Control Interface) control unit or a RF front-end control interface (RFFE, RF Front End Control Interface) control unit, which complies with the control protocol of the RFFE bus. When the controller is a MIPI-RFFE control unit or an RFFE control unit, the RF MHB L-PA Mid device is also provided with a clock signal input pin CLK, a unidirectional/bidirectional data signal input or bidirectional pin SDATAS, a power supply pin VDD, a reference voltage pin VIO, etc., to realize the control of the power amplifier, each switch unit, and the low noise amplifier in the RF front-end device.
可以看出,本申请实施例中,由于第一收发电路对应的高频信号发射通路和第一接收通路对应的高频信号接收通路在第一开关电路中无共用触点,从而第一开关电路实现高频信号收发状态切换的选通操作不会产生阻抗不连续的问题,如此可以避免第二收发电路对应的中频信号接收通路的吞吐量或者EVM恶化,使得高频信号接收通路和中频信号接收通路可以保持稳定的multi-on以实现接收状态下的CA。It can be seen that in the embodiment of the present application, since the high-frequency signal transmitting path corresponding to the first transceiver circuit and the high-frequency signal receiving path corresponding to the first receiving path have no common contacts in the first switching circuit, the first switching circuit implements the gating operation of switching the high-frequency signal transceiver state without causing the problem of impedance discontinuity, thereby avoiding the throughput or EVM deterioration of the intermediate frequency signal receiving path corresponding to the second transceiver circuit, so that the high-frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
在一个可能的示例中,如图3所示的另一种射频前端器件的架构示意图,所述射频前端器件还设置有中频发射端口MB RFIN;In a possible example, as shown in FIG3 , another schematic diagram of the architecture of a radio frequency front-end device, the radio frequency front-end device is further provided with an intermediate frequency transmission port MB RFIN;
所述第二收发电路130,还与所述中频发射端口MB RFIN连接,用于对来自所述中频发射端口MB RFIN的中频信号进行功率放大处理并通过所述第二天线端口ASM 2输出。The second transceiver circuit 130 is also connected to the intermediate frequency transmission port MB RFIN, and is used for power amplifying the intermediate frequency signal from the intermediate frequency transmission port MB RFIN and outputting it through the second antenna port ASM 2.
其中,中频发射端口MB RFIN用于与射频收发器的中频段信号的发射端口连接。Among them, the intermediate frequency transmission port MB RFIN is used to connect to the transmission port of the intermediate frequency band signal of the RF transceiver.
可见,本示例中,射频前端器件还可以集成中频信号的发射通路,从而无需2个芯片分别支持高频信号和中频信号的发射,提高射频前端器件的集成度。It can be seen that in this example, the RF front-end device can also integrate the transmission path of the intermediate frequency signal, thereby eliminating the need for two chips to support the transmission of high-frequency signals and intermediate frequency signals respectively, thereby improving the integration of the RF front-end device.
在一个可能的示例中,如图4所示的另一种射频前端器件的架构示意图,所述第二收发电路130包括中频功率放大器(图中示例为MP PA)、第一低噪声放大器(图中示例为MB LNA1)和中频段双工器;In a possible example, as shown in FIG4 , the second transceiver circuit 130 includes an intermediate frequency power amplifier (MP PA in the example in the figure), a first low noise amplifier (MB LNA1 in the example in the figure), and an intermediate frequency duplexer;
所述中频发射端口MB RFIN连接所述中频功率放大器的输入端,所述中频功率放大器的输出端连接所述中频段双工器的一第一端;The intermediate frequency transmission port MB RFIN is connected to the input end of the intermediate frequency power amplifier, and the output end of the intermediate frequency power amplifier is connected to a first end of the intermediate frequency band duplexer;
所述中频段双工器的另一第一端连接所述第一低噪声放大器的输入端,所述第一低噪声放大器的输出端连接所述第一中频接收端口MB LNA OUT1;
The other first end of the intermediate frequency duplexer is connected to the input end of the first low noise amplifier, and the output end of the first low noise amplifier is connected to the first intermediate frequency receiving port MB LNA OUT1;
所述中频段双工器的第二端连接所述第一开关电路的一第一端。The second end of the intermediate frequency band duplexer is connected to a first end of the first switch circuit.
可见,本示例中,前端射频器件通过双工器、功率放大器、低噪声放大器实现中频段的信号的收发通路的实现。It can be seen that in this example, the front-end RF device realizes the transmission and reception path of the mid-frequency band signal through the duplexer, power amplifier, and low-noise amplifier.
在一个可能的示例中,如图5所示的另一种射频前端器件的架构示意图,所述射频前端器件还设置有第二高频接收端口HB LNA OUT2;In a possible example, as shown in FIG5 , the architecture diagram of another RF front-end device, the RF front-end device is further provided with a second high-frequency receiving port HB LNA OUT2;
所述第一收发电路110,还与所述第二高频接收端口HB LNA OUT2连接,用于对接收到的来自第一天线端口ASM 1的信号进行滤波、放大处理并输出所述高频信号至所述第二高频接收端口HB LNA OUT2。The first transceiver circuit 110 is also connected to the second high frequency receiving port HB LNA OUT2, and is used for filtering and amplifying the signal received from the first antenna port ASM 1 and outputting the high frequency signal to the second high frequency receiving port HB LNA OUT2.
其中,第二高频接收端口HB LNA OUT2用于与射频收发器的任一高频段的信号接收端口连接。Among them, the second high-frequency receiving port HB LNA OUT2 is used to connect to any high-frequency band signal receiving port of the RF transceiver.
可见,本示例中,射频前端器件可以继承2路高频信号的接收通道,且该2路高频信号的接收通道的开关触点无共用。It can be seen that in this example, the RF front-end device can inherit the receiving channels of two high-frequency signals, and the switch contacts of the receiving channels of the two high-frequency signals are not shared.
在一个可能的示例中,如图6所示的另一种射频前端器件的架构示意图,所述第一收发电路110包括高频功率放大器、第一高频低噪声放大器、切换开关、第一滤波器;In a possible example, as shown in FIG6 , in another schematic diagram of the architecture of a radio frequency front-end device, the first transceiver circuit 110 includes a high-frequency power amplifier, a first high-frequency low-noise amplifier, a switch, and a first filter;
所述高频发射端口HB RFIN连接所述高频功率放大器的输入端,所述高频功率放大器的输出端连接所述切换开关的一第一端;The high-frequency transmitting port HB RFIN is connected to the input end of the high-frequency power amplifier, and the output end of the high-frequency power amplifier is connected to a first end of the switching switch;
所述切换开关的另一第一端连接所述第一高频低噪声放大器的输入端,所述第一高频低噪声放大器的输出端连接所述第二高频接收端口HB LNA OUT2;The other first end of the switching switch is connected to the input end of the first high-frequency low-noise amplifier, and the output end of the first high-frequency low-noise amplifier is connected to the second high-frequency receiving port HB LNA OUT2;
所述切换开关的第二端连接所述第一滤波器的一端,所述第一滤波器的另一端连接所述第一开关电路的一第一端。The second end of the switch is connected to one end of the first filter, and the other end of the first filter is connected to a first end of the first switch circuit.
其中,切换开关为SPDT开关,2个第一端分别为第一个T端口和第二个T端口,单个第二端为S端口。The switch is a SPDT switch, the two first ends are respectively a first T port and a second T port, and the single second end is an S port.
可见,本示例中,射频前端器件能够通过高频功率放大器、第一高频低噪声放大器、切换开关、第一滤波器实现高频段信号的接收和发送。It can be seen that in this example, the RF front-end device can receive and send high-frequency band signals through a high-frequency power amplifier, a first high-frequency low-noise amplifier, a switching switch, and a first filter.
在一个可能的示例中,如图7所示的另一种射频前端器件的架构示意图,所述第一接收电路包括第二低噪声放大器(图中示例为HB LNA2)和第二滤波器(图中示例为Filter2);In a possible example, as shown in FIG7 , in another schematic diagram of the architecture of a radio frequency front-end device, the first receiving circuit includes a second low noise amplifier (HB LNA2 in the example in the figure) and a second filter (Filter2 in the example in the figure);
所述第一中频接收端口MB LNA OUT1连接所述第二低噪声放大器的输出端,所述低噪声放大器的输入端连接所述第二滤波器的第一端,所述第二滤波器的第二端连接所述第一开关电路的一第一端。The first intermediate frequency receiving port MB LNA OUT1 is connected to the output end of the second low noise amplifier, the input end of the low noise amplifier is connected to the first end of the second filter, and the second end of the second filter is connected to a first end of the first switching circuit.
可见,本示例中,射频前端器件能够通过第二低噪声放大器和第二滤波器实现高频段信号的接收。It can be seen that, in this example, the RF front-end device can receive high-frequency band signals through the second low-noise amplifier and the second filter.
图8A是本申请实施例提供的一种射频收发系统的架构示意图,包括:FIG8A is a schematic diagram of the architecture of a radio frequency transceiver system provided in an embodiment of the present application, including:
第一天线ANT0、第二天线ANT1、第三天线ANT2、第四天线ANT3、射频收发器、天线切换模块ASM、低噪声前端模块(LNA Front end Module,LFEM)和如图2A至图7任意图例所述的射频前端器件(图中示例为MHB L-PA MID);其中,A first antenna ANT0, a second antenna ANT1, a third antenna ANT2, a fourth antenna ANT3, a radio frequency transceiver, an antenna switching module ASM, a low noise front end module (LNA Front end Module, LFEM) and a radio frequency front end device as described in any of the figures in Figures 2A to 7 (the example in the figure is MHB L-PA MID); wherein,
所述射频收发器经所述射频前端器件、所述ASM与第一天线连接,构成至少包括高频
段信号的主集发射通路(图中示例为N41主集发射通路)和所述高频段信号的主集接收通路(图中示例为N41主集接收通路);The RF transceiver is connected to the first antenna via the RF front-end device and the ASM, and comprises at least a high frequency The main set transmission path of the segment signal (the example in the figure is the N41 main set transmission path) and the main set receiving path of the high frequency band signal (the example in the figure is the N41 main set receiving path);
所述射频收发器经所述射频前端器件、所述ASM与第二天线连接,构成至少包括所述高频段信号的主集MIMO接收通路(图中示例为N41主集MIMO接收通路)、中频段信号的主集接收通路(图中示例为B3主集接收通路),以及所述中频段信号的主集发射通路(图中示例为B3主集发射通路);The RF transceiver is connected to the second antenna via the RF front-end device and the ASM, forming at least a main set MIMO receiving path of the high frequency band signal (the example in the figure is the N41 main set MIMO receiving path), a main set receiving path of the mid-frequency band signal (the example in the figure is the B3 main set receiving path), and a main set transmitting path of the mid-frequency band signal (the example in the figure is the B3 main set transmitting path);
所述射频收发器经所述低噪声前端模块、所述ASM与第三天线连接,构成至少包括所述高频段信号的分集接收通路(图中示例为N41分集接收通路)和所述中频段信号的分集接收通路(图中示例为B3分集接收通路);The RF transceiver is connected to the third antenna via the low noise front end module and the ASM, forming at least a diversity receiving path for the high frequency band signal (the example in the figure is the N41 diversity receiving path) and a diversity receiving path for the mid frequency band signal (the example in the figure is the B3 diversity receiving path);
所述射频收发器经所述低噪声前端模块、所述ASM与第四天线连接,构成至少包括所述高频段信号的分集MIMO接收通路(图中示例为N41分集MIMO接收通路);The RF transceiver is connected to the fourth antenna via the low noise front end module and the ASM, forming a diversity MIMO receiving path (the example in the figure is an N41 diversity MIMO receiving path) including at least the high frequency band signal;
其中,ASM可以是4P5T开关,第一P端口P1连接ANT0,第二P端口P2连接ANT1,第三P端口P3连接ANT2,第四P端口P4连接ANT3,第一T端口T1连接第一P端口P1、且连接射频前端器件的高频段信号的发射端口;第二T端口T2连接第二P端口P2、且连接射频前端器件的集成高频段信号接收+中频段信号收发的端口;第三T端口T3连接第三P端口P3、且连接LFEM的高频段信号的分集通路接收端口;第四T端口T4连接第三P端口P3、且连接LFEM的中频段信号的分集接收通路端口;第五T端口T5连接第四P端口P4、且连接LFEM的高频段信号的分集MIMO接收通路端口。Among them, the ASM can be a 4P5T switch, the first P port P1 is connected to ANT0, the second P port P2 is connected to ANT1, the third P port P3 is connected to ANT2, and the fourth P port P4 is connected to ANT3. The first T port T1 is connected to the first P port P1 and connected to the high frequency band signal transmission port of the RF front-end device; the second T port T2 is connected to the second P port P2 and connected to the integrated high frequency band signal reception + intermediate frequency band signal transmission and reception port of the RF front-end device; the third T port T3 is connected to the third P port P3 and connected to the diversity path reception port of the high frequency band signal of the LFEM; the fourth T port T4 is connected to the third P port P3 and connected to the diversity reception path port of the intermediate frequency band signal of the LFEM; the fifth T port T5 is connected to the fourth P port P4 and connected to the diversity MIMO reception path port of the high frequency band signal of the LFEM.
其中,如图8B所示的另一种射频收发系统的架构示意图,其中,Among them, as shown in FIG8B, another schematic diagram of the architecture of a radio frequency transceiver system,
高频段信号的主集发射通路(图中示例为N41主集发射通路)通过射频收发器、高频段功率放大器HB PA、切换开关、第一滤波器Filter1、ASM以及ANT0实现;The main transmission path of the high-frequency band signal (the example in the figure is the N41 main transmission path) is realized through the RF transceiver, the high-frequency band power amplifier HB PA, the switching switch, the first filter Filter1, ASM and ANT0;
高频段信号的主集接收通路(图中示例为N41主集接收通路)通过ANT1、ASM、第一滤波器Filter1、第一高频段低噪声放大器HB LNA1以及射频收发器实现;The main set receiving path of the high-frequency band signal (the example in the figure is the N41 main set receiving path) is realized through ANT1, ASM, the first filter Filter1, the first high-frequency band low-noise amplifier HB LNA1 and the RF transceiver;
高频段信号的主集MIMO接收通路(图中示例为N41主集MIMO接收通路)通过ANT1、ASM、第二滤波器Filter2、第二高频段低噪声放大器HB LNA2以及射频收发器实现;The main set MIMO receiving path of the high-frequency band signal (the example in the figure is the N41 main set MIMO receiving path) is realized through ANT1, ASM, the second filter Filter2, the second high-frequency band low-noise amplifier HB LNA2 and the RF transceiver;
高频段信号的分集接收通路(图中示例为N41分集接收通路)通过ANT2、ASM、第三滤波器Filter3、第三高频段低噪声放大器HB LNA3以及射频收发器实现;The diversity receiving path of the high-frequency band signal (the example in the figure is the N41 diversity receiving path) is realized through ANT2, ASM, the third filter Filter3, the third high-frequency band low-noise amplifier HB LNA3 and the RF transceiver;
高频段信号的分集MIMO接收通路(图中示例为N41分集MIMO接收通路)通过ANT3、ASM、第四滤波器Filter4、第四高频段低噪声放大器HB LNA4以及射频收发器实现;The diversity MIMO receiving path of the high-frequency band signal (the example in the figure is the N41 diversity MIMO receiving path) is realized through ANT3, ASM, the fourth filter Filter4, the fourth high-frequency band low-noise amplifier HB LNA4 and the RF transceiver;
中频段信号的主集发射通路(图中示例为B3主集发射通路)通过射频收发器、中频段功率放大器MB PA、切换开关、中频段双工器、ASM以及ANT1实现;The main transmission path of the IF signal (the example in the figure is the B3 main transmission path) is realized through the RF transceiver, the IF power amplifier MB PA, the switching switch, the IF duplexer, the ASM and the ANT1;
中频段信号的主集接收通路(图中示例为B3主集接收通路)通过ANT1、ASM、中频段双工器、第一中频段低噪声放大器MB LNA1以及射频收发器实现;The main set receiving path of the intermediate frequency band signal (the example in the figure is the B3 main set receiving path) is realized through ANT1, ASM, intermediate frequency band duplexer, the first intermediate frequency band low noise amplifier MB LNA1 and RF transceiver;
中频段信号的分集接收通路(图中示例为B3分集接收通路)通过ANT2、ASM、第五滤波器Filter5、第二中频段低噪声放大器HB LNA2以及射频收发器实现;
The diversity receiving path of the intermediate frequency band signal (the example in the figure is the B3 diversity receiving path) is realized by ANT2, ASM, the fifth filter Filter5, the second intermediate frequency band low noise amplifier HB LNA2 and the RF transceiver;
可以看出,本申请实施例中,射频收发系统仅设置单个射频L-PA Mid器件就可以实现中频段信号和高频段信号的发射处理,实现了高频段和中频段的信号的双连接,且能够实现高频段信号的4*4MIMO功能,不需要额外采用外挂的支持高频段的功率放大器模块来实现高频信号放大。基于上述射频收发系统,可以降低了成本、提高了器件的集成度,减小了射频系统中各器件占用基板的面积。It can be seen that in the embodiment of the present application, the RF transceiver system can realize the transmission processing of the mid-frequency band signal and the high-frequency band signal by only setting a single RF L-PA Mid device, realize the dual connection of the high-frequency band and mid-frequency band signals, and can realize the 4*4MIMO function of the high-frequency band signal, without the need for an additional external power amplifier module supporting the high-frequency band to realize high-frequency signal amplification. Based on the above RF transceiver system, the cost can be reduced, the integration of the device can be improved, and the area of the substrate occupied by each device in the RF system can be reduced.
在一个可能的示例中,如图9A所示的另一种射频收发系统的架构示意图;In a possible example, as shown in FIG9A , another schematic diagram of the architecture of a radio frequency transceiver system;
所述射频收发器经所述低噪声前端模块、所述ASM与所述第一天线ANT0连接,构成包括所述中频段信号的主集MIMO接收通路(图中示例为B3主集MIMO接收通路);The RF transceiver is connected to the first antenna ANT0 via the low noise front end module and the ASM to form a main set MIMO receiving path including the intermediate frequency band signal (the example in the figure is the B3 main set MIMO receiving path);
所述射频收发器经所述低噪声前端模块、所述ASM与所述第四天线ANT3连接,还构成所述中频段信号的分集MIMO接收通路(图中示例为B3分集MIMO接收通路)。The RF transceiver is connected to the fourth antenna ANT3 via the low noise front end module and the ASM, and also constitutes a diversity MIMO receiving path for the intermediate frequency band signal (the example in the figure is the B3 diversity MIMO receiving path).
其中,ASM可以是4P7T开关,第一P端口P1连接ANT0,第二P端口P2连接ANT1,第三P端口P3连接ANT2,第四P端口P4连接ANT3,第一T端口T1连接第一P端口P1、且连接射频前端器件的高频段信号的发射端口;第二T端口T2连接第二P端口P2、且连接射频前端器件的集成高频段信号接收+中频段信号收发的端口;第三T端口T3连接第三P端口P3、且连接LFEM的高频段信号的分集通路接收端口;第四T端口T4连接第三P端口P3、且连接LFEM的中频段信号的分集接收通路端口;第五T端口T5连接第四P端口P4、且连接LFEM的高频段信号的分集MIMO接收通路端口;此外,Wherein, the ASM can be a 4P7T switch, the first P port P1 is connected to ANT0, the second P port P2 is connected to ANT1, the third P port P3 is connected to ANT2, the fourth P port P4 is connected to ANT3, the first T port T1 is connected to the first P port P1 and connected to the high frequency band signal transmission port of the RF front-end device; the second T port T2 is connected to the second P port P2 and connected to the integrated high frequency band signal receiving + intermediate frequency band signal transceiving port of the RF front-end device; the third T port T3 is connected to the third P port P3 and connected to the diversity path receiving port of the high frequency band signal of the LFEM; the fourth T port T4 is connected to the third P port P3 and connected to the diversity receiving path port of the intermediate frequency band signal of the LFEM; the fifth T port T5 is connected to the fourth P port P4 and connected to the diversity MIMO receiving path port of the high frequency band signal of the LFEM; in addition,
第六T端口T6连接第一P端口P1、且连接LFEM的中频段信号的主集MIMO接收通路端口;The sixth T port T6 is connected to the first P port P1 and is connected to the main set MIMO receiving path port of the intermediate frequency band signal of the LFEM;
第七T端口T7连接第四P端口P4、且连接LFEM的中频段信号的分集MIMO接收通路端口。The seventh T port T7 is connected to the fourth P port P4 and is connected to a diversity MIMO receiving path port of the intermediate frequency band signal of the LFEM.
其中,如图9B所示的另一种射频收发系统的架构示意图,其中,Among them, as shown in FIG9B , another schematic diagram of the architecture of a radio frequency transceiver system,
中频段信号的主集MIMO接收通路(图中示例为B3主集MIMO接收通路)通过ANT0、ASM、第六滤波器Filter6、第三中频低噪声放大器MB LNA3以及射频收发器实现;The main set MIMO receiving path of the intermediate frequency band signal (the example in the figure is the B3 main set MIMO receiving path) is realized through ANT0, ASM, the sixth filter Filter6, the third intermediate frequency low noise amplifier MB LNA3 and the RF transceiver;
中频段信号的分集MIMO接收通路(图中示例为B3分集MIMO接收通路)通过ANT3、ASM、第七滤波器Filter7、第四中频低噪声放大器MB LNA4以及射频收发器实现。The diversity MIMO receiving path of the intermediate frequency band signal (the example in the figure is the B3 diversity MIMO receiving path) is realized through ANT3, ASM, the seventh filter Filter7, the fourth intermediate frequency low noise amplifier MB LNA4 and the RF transceiver.
可见,本示例中,射频收发系统能够支持中频段信号的4*4MIMO功能。It can be seen that in this example, the RF transceiver system can support the 4*4 MIMO function of the mid-frequency band signal.
本申请实施例还提供一种通信设备,该通信设备上设置有上述任一实施例中的射频收发系统,通过在通信设备上设置该射频收发系统,由于第一收发电路对应的高频信号发射通路和第一接收通路对应的高频信号接收通路在第一开关电路中无共用触点,从而第一开关电路实现高频信号收发状态切换的选通操作不会产生阻抗不连续的问题,如此可以避免第二收发电路对应的中频信号接收通路的吞吐量或者EVM恶化,使得高频信号接收通路和中频信号接收通路可以保持稳定的multi-on以实现接收状态下的CA。An embodiment of the present application also provides a communication device, on which the RF transceiver system of any of the above embodiments is provided. By providing the RF transceiver system on the communication device, since the high-frequency signal transmission path corresponding to the first transceiver circuit and the high-frequency signal receiving path corresponding to the first receiving path have no common contacts in the first switching circuit, the first switching circuit implements the gating operation of switching the high-frequency signal transceiver state without causing impedance discontinuity problems, thereby avoiding the throughput or EVM deterioration of the intermediate frequency signal receiving path corresponding to the second transceiver circuit, so that the high-frequency signal receiving path and the intermediate frequency signal receiving path can maintain stable multi-on to achieve CA in the receiving state.
此外,通信设备仅设置一个射频L-PA Mid器件就可以实现任一中频段的4G信号和5G信号同时发射处理,也即,实现了5G频段和中频段的4G信号的双连接,实现了不需要额外采用外挂的支持5G频段的功率放大器模块来实现5G信号放大。基于上述射频收发系统,
可以降低了成本、提高了器件的集成度,减小了射频系统中各器件占用基板的面积。In addition, the communication equipment only needs to set up one RF L-PA Mid device to realize the simultaneous transmission and processing of 4G signals and 5G signals in any intermediate frequency band, that is, to realize the dual connection of 5G band and 4G signals in the intermediate frequency band, and to realize the amplification of 5G signals without the need for an additional external power amplifier module supporting the 5G band. Based on the above RF transceiver system, The cost can be reduced, the integration of the device can be improved, and the area of the substrate occupied by each device in the radio frequency system can be reduced.
以上实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本申请专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。因此,本申请专利的保护范围应以所附权利要求为准。
The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.
Claims (20)
- 一种射频前端器件,其特征在于,所述射频前端器件设置有高频发射端口、第一高频接收端口、第一中频接收端口、第一天线端口以及第二天线端口;所述射频前端器件至少包括:A radio frequency front-end device, characterized in that the radio frequency front-end device is provided with a high frequency transmitting port, a first high frequency receiving port, a first intermediate frequency receiving port, a first antenna port and a second antenna port; the radio frequency front-end device at least comprises:第一开关电路,第一开关电路的多个第一端分别与第一收发电路、第一接收电路、第二收发电路连接,第一开关电路的一第二端与第一天线端口连接,用于选择导通第一收发电路与第一天线之间的射频通路;第一开关电路的另一第二端与第二天线端口连接,用于选择导通第一接收电路与参考天线之间的射频通路、同时选择导通第二收发电路与所述参考天线之间的射频通路,所述参考天线为所述第一天线或者第二天线;A first switch circuit, wherein a plurality of first ends of the first switch circuit are respectively connected to a first transceiver circuit, a first receiving circuit, and a second transceiver circuit, a second end of the first switch circuit is connected to a first antenna port, and is used for selectively conducting a radio frequency path between the first transceiver circuit and the first antenna; another second end of the first switch circuit is connected to a second antenna port, and is used for selectively conducting a radio frequency path between the first receiving circuit and a reference antenna, and simultaneously selecting a radio frequency path between the second transceiver circuit and the reference antenna, wherein the reference antenna is the first antenna or the second antenna;第一收发电路,与高频发射端口连接,用于对来自高频发射端口的高频信号进行功率放大处理并通过所述第一天线端口输出;A first transceiver circuit is connected to the high-frequency transmission port, and is used to amplify the power of the high-frequency signal from the high-frequency transmission port and output it through the first antenna port;第一接收电路,与第一高频接收端口连接,用于对接收到的来自第二天线端口的信号进行滤波、放大处理并输出高频信号至第一高频接收端口;A first receiving circuit is connected to the first high-frequency receiving port, and is used to filter and amplify the signal received from the second antenna port and output the high-frequency signal to the first high-frequency receiving port;第二收发电路,与第一中频接收端口连接,用于对来自第二天线端口的信号进行滤波、放大处理并输出中频信号至第一中频接收端口。The second transceiver circuit is connected to the first intermediate frequency receiving port, and is used for filtering and amplifying the signal from the second antenna port and outputting the intermediate frequency signal to the first intermediate frequency receiving port.
- 根据权利要求1所述的射频前端器件,其特征在于,所述射频前端器件还设置有中频发射端口;The RF front-end device according to claim 1 is characterized in that the RF front-end device is also provided with an intermediate frequency transmission port;所述第二收发电路,还与所述中频发射端口连接,用于对来自所述中频发射端口的中频信号进行功率放大处理并通过所述第二天线端口输出。The second transceiver circuit is also connected to the intermediate frequency transmission port, and is used to perform power amplification processing on the intermediate frequency signal from the intermediate frequency transmission port and output it through the second antenna port.
- 根据权利要求2所述的射频前端器件,其特征在于,所述第二收发电路包括中频功率放大器、第一低噪声放大器和中频段双工器;The RF front-end device according to claim 2, characterized in that the second transceiver circuit comprises an intermediate frequency power amplifier, a first low noise amplifier and an intermediate frequency duplexer;所述中频发射端口连接所述中频功率放大器的输入端,所述中频功率放大器的输出端连接所述中频段双工器的一第一端;The intermediate frequency transmitting port is connected to the input end of the intermediate frequency power amplifier, and the output end of the intermediate frequency power amplifier is connected to a first end of the intermediate frequency duplexer;所述中频段双工器的另一第一端连接所述第一低噪声放大器的输入端,所述第一低噪声放大器的输出端连接所述第一中频接收端口;The other first end of the intermediate frequency duplexer is connected to the input end of the first low noise amplifier, and the output end of the first low noise amplifier is connected to the first intermediate frequency receiving port;所述中频段双工器的第二端连接所述第一开关电路的一第一端。The second end of the intermediate frequency band duplexer is connected to a first end of the first switch circuit.
- 根据权利要求1-3任一项所述的射频前端器件,其特征在于,所述射频前端器件还设置有第二高频接收端口;The RF front-end device according to any one of claims 1 to 3, characterized in that the RF front-end device is further provided with a second high-frequency receiving port;所述第一收发电路,还与所述第二高频接收端口连接,用于对接收到的来自第一天线端口的信号进行滤波、放大处理并输出所述高频信号至所述第二高频接收端口。The first transceiver circuit is also connected to the second high-frequency receiving port, and is used to filter and amplify the signal received from the first antenna port and output the high-frequency signal to the second high-frequency receiving port.
- 根据权利要求4所述的射频前端器件,其特征在于,所述第一收发电路包括高频功率放大器、第一高频低噪声放大器、切换开关、第一滤波器;The RF front-end device according to claim 4, characterized in that the first transceiver circuit comprises a high-frequency power amplifier, a first high-frequency low-noise amplifier, a switching switch, and a first filter;所述高频发射端口连接所述高频功率放大器的输入端,所述高频功率放大器的输出端连接所述切换开关的一第一端;The high-frequency transmitting port is connected to the input end of the high-frequency power amplifier, and the output end of the high-frequency power amplifier is connected to a first end of the switching switch;所述切换开关的另一第一端连接所述第一高频低噪声放大器的输入端,所述第一高频低噪声放大器的输出端连接所述第二高频接收端口;The other first end of the switch is connected to the input end of the first high-frequency low-noise amplifier, and the output end of the first high-frequency low-noise amplifier is connected to the second high-frequency receiving port;所述切换开关的第二端连接所述第一滤波器的一端,所述第一滤波器的另一端连接所 述第一开关电路的一第一端。The second end of the switch is connected to one end of the first filter, and the other end of the first filter is connected to the A first end of the first switch circuit.
- 根据权利要求1-5任一项所述的射频前端器件,其特征在于,所述第一接收电路包括第二高频低噪声放大器和第二滤波器;The RF front-end device according to any one of claims 1 to 5, characterized in that the first receiving circuit comprises a second high-frequency low-noise amplifier and a second filter;所述第一中频接收端口连接所述第二高频低噪声放大器的输出端,所述第二高频低噪声放大器的输入端连接所述第二滤波器的第一端,所述第二滤波器的第二端连接所述第一开关电路的一第一端。The first intermediate frequency receiving port is connected to the output end of the second high frequency low noise amplifier, the input end of the second high frequency low noise amplifier is connected to the first end of the second filter, and the second end of the second filter is connected to a first end of the first switch circuit.
- 根据权利要求1-6任一项所述的射频前端器件,其特征在于,所述第一开关电路为2P3T开关。The RF front-end device according to any one of claims 1 to 6, characterized in that the first switching circuit is a 2P3T switch.
- 根据权利要求7所述的射频前端器件,其特征在于,射频前端器件为MHB L-PA Mid器件;The RF front-end device according to claim 7, characterized in that the RF front-end device is an MHB L-PA Mid device;所述高频信号为非独立组网模式下的预设高频的信号;The high-frequency signal is a preset high-frequency signal in the non-independent networking mode;所述中频信号为所述非独立组网模式下的预设中频的信号。The intermediate frequency signal is a preset intermediate frequency signal in the non-independent networking mode.
- 一种射频收发系统,其特征在于,包括:A radio frequency transceiver system, comprising:第一天线、第二天线、第三天线、第四天线、射频收发器、天线切换模块、低噪声前端模块和如权利要求1~8任一项所述的射频前端器件;其中,A first antenna, a second antenna, a third antenna, a fourth antenna, a radio frequency transceiver, an antenna switching module, a low noise front end module and a radio frequency front end device as claimed in any one of claims 1 to 8; wherein,所述射频收发器经所述射频前端器件、所述天线切换模块与第一天线连接,构成至少包括高频段信号的主集发射通路和所述高频段信号的主集接收通路;The RF transceiver is connected to the first antenna via the RF front-end device and the antenna switching module, forming at least a main set transmission path of high frequency band signals and a main set receiving path of the high frequency band signals;所述射频收发器经所述射频前端器件、所述天线切换模块与第二天线连接,构成至少包括所述高频段信号的主集MIMO接收通路、中频段信号的主集接收通路,以及所述中频段信号的主集发射通路;The RF transceiver is connected to the second antenna via the RF front-end device and the antenna switching module, forming at least a main set MIMO receiving path of the high frequency band signal, a main set receiving path of the mid-frequency band signal, and a main set transmitting path of the mid-frequency band signal;所述射频收发器经所述低噪声前端模块、所述天线切换模块与第三天线连接,构成至少包括所述高频段信号的分集接收通路和所述中频段信号的分集接收通路;The RF transceiver is connected to the third antenna via the low noise front end module and the antenna switching module, forming at least a diversity receiving path for the high frequency band signal and a diversity receiving path for the mid frequency band signal;所述射频收发器经所述低噪声前端模块、所述天线切换模块与第四天线连接,构成至少包括所述高频段信号的分集MIMO接收通路;The RF transceiver is connected to the fourth antenna via the low noise front end module and the antenna switching module to form a diversity MIMO receiving path including at least the high frequency band signal;其中,第一中频段信号和第二中频段信号为非独立组网模式下的两个不同预设中频段的信号。The first intermediate frequency band signal and the second intermediate frequency band signal are signals of two different preset intermediate frequency bands in the non-independent networking mode.
- 根据权利要求9所述的射频收发系统,其特征在于,The radio frequency transceiver system according to claim 9, characterized in that:所述射频收发器经所述低噪声前端模块、所述天线切换模块与所述第一天线连接,构成包括所述中频段信号的主集MIMO接收通路;The RF transceiver is connected to the first antenna via the low noise front end module and the antenna switching module to form a main set MIMO receiving path including the intermediate frequency band signal;所述射频收发器经所述低噪声前端模块、所述天线切换模块与所述第四天线连接,还构成所述中频段信号的分集MIMO接收通路。The radio frequency transceiver is connected to the fourth antenna via the low noise front end module and the antenna switching module, and also constitutes a diversity MIMO receiving path for the intermediate frequency band signal.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述天线切换模块为4P5T开关。The radio frequency transceiver system according to claim 9 or 10, characterized in that the antenna switching module is a 4P5T switch.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述高频段信号的主集发射通路通过所述射频收发器、高频段功率放大器、切换开关、第一滤波器、所述天线切换模块以及所述第一天线实现。The RF transceiver system according to claim 9 or 10 is characterized in that the main set transmission path of the high-frequency band signal is realized through the RF transceiver, the high-frequency band power amplifier, the switching switch, the first filter, the antenna switching module and the first antenna.
- 根据权利要求12所述的射频收发系统,其特征在于,所述高频段信号的主集接收 通路通过所述第二天线、所述天线切换模块、所述第一滤波器、第一高频段低噪声放大器以及所述射频收发器实现。The radio frequency transceiver system according to claim 12, characterized in that the main set of high frequency band signals is received The path is realized through the second antenna, the antenna switching module, the first filter, the first high-band low-noise amplifier and the radio frequency transceiver.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述高频段信号的主集MIMO接收通路通过所述第一天线、所述天线切换模块、第二滤波器、第二高频段低噪声放大器以及所述射频收发器实现。The RF transceiver system according to claim 9 or 10 is characterized in that the main set MIMO receiving path of the high-frequency band signal is realized through the first antenna, the antenna switching module, the second filter, the second high-frequency band low-noise amplifier and the RF transceiver.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述高频段信号的分集接收通路通过所述第三天线、所述天线切换模块、第三滤波器、第三高频段低噪声放大器以及所述射频收发器实现。The RF transceiver system according to claim 9 or 10 is characterized in that the diversity reception path of the high-frequency band signal is realized through the third antenna, the antenna switching module, the third filter, the third high-frequency band low-noise amplifier and the RF transceiver.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述高频段信号的分集MIMO接收通路通过所述第四天线、所述天线切换模块、第四滤波器、第四高频段低噪声放大器以及所述射频收发器实现。The RF transceiver system according to claim 9 or 10 is characterized in that the diversity MIMO receiving path of the high-frequency band signal is realized through the fourth antenna, the antenna switching module, the fourth filter, the fourth high-frequency band low-noise amplifier and the RF transceiver.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述中频段信号的主集发射通路通过所述射频收发器、中频段功率放大器、切换开关、中频段双工器、所述天线切换模块以及所述第二天线实现。The RF transceiver system according to claim 9 or 10 is characterized in that the main set transmission path of the intermediate frequency band signal is realized through the RF transceiver, the intermediate frequency band power amplifier, the switching switch, the intermediate frequency band duplexer, the antenna switching module and the second antenna.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述中频段信号的主集接收通路通过所述第二天线、所述天线切换模块、中频段双工器、第一中频段低噪声放大器以及所述射频收发器实现。The RF transceiver system according to claim 9 or 10 is characterized in that the main set receiving path of the intermediate frequency band signal is realized through the second antenna, the antenna switching module, the intermediate frequency band duplexer, the first intermediate frequency band low noise amplifier and the RF transceiver.
- 根据权利要求9或10所述的射频收发系统,其特征在于,所述中频段信号的分集接收通路通过所述第三天线、所述天线切换模块、第五滤波器、第二中频段低噪声放大器以及所述射频收发器实现。The RF transceiver system according to claim 9 or 10 is characterized in that the diversity reception path of the intermediate frequency band signal is realized through the third antenna, the antenna switching module, the fifth filter, the second intermediate frequency band low noise amplifier and the RF transceiver.
- 一种通信设备,其特征在于,包括权利要求9至19任一项所述的射频收发系统。 A communication device, characterized by comprising the radio frequency transceiver system according to any one of claims 9 to 19.
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CN111342859A (en) * | 2020-03-03 | 2020-06-26 | Oppo广东移动通信有限公司 | Radio frequency system and electronic equipment |
WO2021143877A1 (en) * | 2020-01-17 | 2021-07-22 | Oppo广东移动通信有限公司 | Radio frequency circuit and electronic device |
CN113300736A (en) * | 2021-05-19 | 2021-08-24 | 深圳市锐尔觅移动通信有限公司 | Radio frequency transceiving system and communication device |
CN114039614A (en) * | 2021-12-07 | 2022-02-11 | Oppo广东移动通信有限公司 | Radio frequency front-end device, radio frequency transceiving system and communication equipment |
CN114124115A (en) * | 2021-12-07 | 2022-03-01 | Oppo广东移动通信有限公司 | Radio frequency front-end device, radio frequency transceiving system and communication equipment |
WO2022247510A1 (en) * | 2021-05-24 | 2022-12-01 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching method, and communication device |
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WO2021143877A1 (en) * | 2020-01-17 | 2021-07-22 | Oppo广东移动通信有限公司 | Radio frequency circuit and electronic device |
CN111342859A (en) * | 2020-03-03 | 2020-06-26 | Oppo广东移动通信有限公司 | Radio frequency system and electronic equipment |
CN113300736A (en) * | 2021-05-19 | 2021-08-24 | 深圳市锐尔觅移动通信有限公司 | Radio frequency transceiving system and communication device |
WO2022247510A1 (en) * | 2021-05-24 | 2022-12-01 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching method, and communication device |
CN114039614A (en) * | 2021-12-07 | 2022-02-11 | Oppo广东移动通信有限公司 | Radio frequency front-end device, radio frequency transceiving system and communication equipment |
CN114124115A (en) * | 2021-12-07 | 2022-03-01 | Oppo广东移动通信有限公司 | Radio frequency front-end device, radio frequency transceiving system and communication equipment |
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