WO2021098674A1 - 射频结构及通信终端 - Google Patents

射频结构及通信终端 Download PDF

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Publication number
WO2021098674A1
WO2021098674A1 PCT/CN2020/129318 CN2020129318W WO2021098674A1 WO 2021098674 A1 WO2021098674 A1 WO 2021098674A1 CN 2020129318 W CN2020129318 W CN 2020129318W WO 2021098674 A1 WO2021098674 A1 WO 2021098674A1
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Prior art keywords
radio frequency
power amplifier
lte
processor
interface
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PCT/CN2020/129318
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English (en)
French (fr)
Inventor
胡亮
张厦
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维沃移动通信有限公司
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Publication of WO2021098674A1 publication Critical patent/WO2021098674A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands

Definitions

  • the embodiment of the present invention relates to the field of communication technology, and in particular to a radio frequency structure and a communication terminal.
  • the fifth generation (5th Generation, 5G) communication technology can adopt two networking methods in the development and construction process: non-standalone (NSA) and standalone (SA).
  • the two networking modes have different requirements for technical requirements and implementation methods.
  • LTE Long Term Evolution
  • NR New Radio
  • radio frequency structure different transmission and reception paths are used to transmit and receive radio frequency signals of different communication standards, and the radio frequency signals of different communication standards are relatively independent of the transmission and reception processing, resulting in higher design costs for the radio frequency structure.
  • the embodiments of the present invention provide a radio frequency structure and a communication terminal to solve the problem that the existing radio frequency structure adopts different transceiver paths to transmit and receive radio frequency signals of different communication standards, which causes the high cost of the radio frequency structure.
  • the present invention is implemented as follows:
  • an embodiment of the present invention provides a radio frequency structure, including: a transceiver path, and a processor, a radio frequency transceiver, and an antenna module respectively connected to the transceiver path;
  • the transceiving path supports processing of radio frequency signals of M communication standards;
  • the processor is configured to control the transceiving path through N interfaces to simultaneously process radio frequency signals of N frequency bands;
  • M is an integer greater than 1
  • N is an integer greater than 1.
  • an embodiment of the present invention also provides a communication terminal, which includes the above-mentioned radio frequency structure.
  • the transceiver path of the radio frequency structure can support the processing of radio frequency signals of at least two communication standards, and the processor of the radio frequency structure can control the transceiver path through N interfaces to simultaneously process radio frequency signals of N frequency bands. Is an integer greater than 1. In this way, the radio frequency structure of the embodiment of the present invention can realize the simultaneous transceiving and processing of radio frequency signals of different communication standards through one transceiver module, thereby achieving the effect of reducing the design cost of the radio frequency structure.
  • FIG. 1 is one of the schematic diagrams of the antenna structure provided by the embodiment of the present invention.
  • FIG. 2 is a second schematic diagram of an antenna structure provided by an embodiment of the present invention.
  • FIG. 3 is the third schematic diagram of the antenna structure provided by the embodiment of the present invention.
  • FIG. 4 is a fourth schematic diagram of the antenna structure provided by the embodiment of the present invention.
  • Fig. 5 is a fifth schematic diagram of an antenna structure provided by an embodiment of the present invention.
  • An embodiment of the present invention provides a radio frequency structure.
  • the radio frequency structure includes a transceiver path, and a processor, a radio frequency transceiver, and an antenna module respectively connected to the transceiver path.
  • the transceiving path can support processing radio frequency signals of M communication standards. Therefore, the transceiving path can be used to process radio frequency signals of M communication standards transceived by a radio frequency structure, where M is an integer greater than 1.
  • the processor may be used to control the receiving and sending channels through N interfaces to simultaneously process radio frequency signals of N frequency bands, where N is an integer greater than 1.
  • the N frequency bands may include: frequency bands of N communication standards among M communication standards. That is to say, the communication standards to which the N frequency bands belong are all different.
  • the N frequency bands may be: frequency bands of the same communication standard among the M communication standards. In other words, the communication standards to which the N frequency bands belong are the same.
  • some of the N frequency bands may belong to the same communication system, and some of the frequency bands may belong to different communication systems.
  • the specific implementation of the N frequency bands may be determined according to the specific structure of the radio frequency structure and/or the actual processing requirements of the radio frequency signal, which is not limited in the embodiment of the present invention.
  • the frequency ranges of the N frequency bands may not cross each other, that is, the N frequency bands do not include frequency bands where the frequency ranges cross.
  • the N frequency bands may also include frequency bands with cross frequency ranges, which may be specifically determined according to the actual situation of frequency band division, which is not limited in the embodiment of the present invention.
  • the interface may be expressed as: Mobile Industry Processor Interface (MIPI), but the present invention does not limit the specific manifestation of the interface.
  • MIPI Mobile Industry Processor Interface
  • the radio frequency transceiver is used to transmit and receive radio frequency signals of M communication standards.
  • the antenna module is used for transmitting and receiving radio frequency signals of M communication standards.
  • the radio frequency structure may include: a transceiving path 10, and a processor 20, a radio frequency transceiver 30 and an antenna module 40 connected to the transceiving path 10 respectively.
  • the processor 10 is provided with a first interface 21 and a second interface 22, and is connected to the transceiver path 10 through the first interface 21 and the second interface 22.
  • the transceiver path 10 is also connected to the radio frequency transceiver 30 and the antenna module 40 respectively.
  • the processor 20 is also connected to a radio frequency transceiver 30.
  • set number of interfaces in FIG. 1 is only an example. In actual applications, the set number of processors can be greater than 2, which can be specifically set according to actual needs, which is not limited in the present invention.
  • the transceiver path of the radio frequency structure can support the processing of radio frequency signals of at least two communication standards, and the processor of the radio frequency structure can control the transceiver path through N interfaces to simultaneously process radio frequency signals of N frequency bands. Is an integer greater than 1. In this way, the radio frequency structure of the embodiment of the present invention can realize the simultaneous transceiving and processing of radio frequency signals of different communication standards through one transceiver module, thereby achieving the effect of reducing the design cost of the radio frequency structure.
  • the transceiver path 10 is used to process radio frequency signals of M communication standards that are transmitted and received by a radio frequency structure. Therefore, the transceiver path 10 includes radio frequency devices that can be used to process radio frequency signals, such as PA (Power Amplifier, PA), filters, switch modules, and so on.
  • PA Power Amplifier, PA
  • filters switches, switch modules, and so on.
  • the transceiver path includes:
  • At least two power amplifiers each of which supports the processing of radio frequency signals of M communication standards, and the frequency bands of the radio frequency signals processed by different power amplifiers are different;
  • a switch module connected to the at least two power amplifiers
  • the antenna module is connected to the switch module; the radio frequency transceiver is connected to the at least two power amplifiers; the processor is respectively connected to the at least two power amplifiers and the switch module .
  • the power amplifier can integrate M power amplifying units, so that the power amplifier can be used to process radio frequency signals of M communication standards.
  • the power amplifying unit and the communication standard can have a one-to-one correspondence, and different power amplifying units correspond to different communication standards, that is, each power amplifying unit can process radio frequency signals of one communication standard, and radio frequency signals processed by different PAs It belongs to different communication standards.
  • the at least two power amplifiers may include the following implementation modes:
  • the at least two power amplifiers include: a low band (LB) power amplifier, an intermediate frequency (Middle Band, MB) power amplifier, and a high frequency (High Band, HB) power amplifier.
  • LB low band
  • MB intermediate frequency
  • HB High Band
  • the at least two power amplifiers include: MB power amplifier, HB1 power amplifier and HB2 power amplifier.
  • the at least two power amplifiers include: an LB power amplifier and an MHB power amplifier.
  • the at least two power amplifiers may also include other manifestations, which may be specifically determined according to the frequency band division requirements, which is not limited in the embodiment of the present invention.
  • the processor is respectively connected to the at least two power amplifiers and the switch module.
  • the processor may output the first type of control signal and the second type of control signal, where the object of the first type of control signal is the power amplifier, which is specifically used to control the working state of the at least two power amplifiers;
  • the target of the second type of control signal is the switch module, which is specifically used to control the working state of the switch module.
  • the first type of control signal and the second type of control signal output by the processor are independent of each other and do not affect each other.
  • the interface of the processor may be connected to the two power amplifiers in the following manner.
  • each power amplifier is used to process the radio frequency signal of the communication standard corresponding to the interface connected to it; the interface and the communication standard have a one-to-one correspondence, and the communication standards corresponding to different interfaces are different.
  • the first type of control signal output by the processor through the interface is used to control the power amplifier connected to the interface to amplify the communication standard corresponding to the interface Radio frequency signal.
  • MIPI1 corresponds to Long Term Evolution (LTE)
  • the processor will act on the first type of control signal outputted by MIPI1 to control the LB power amplifier to amplify LTE LB Radio frequency signal.
  • LTE Long Term Evolution
  • each interface is connected to the at least two power amplifiers.
  • each power amplifier In the first mode, each power amplifier is connected to the N interfaces. Therefore, in the first mode, each power amplifier can receive the first-type control signal from the output through the N interfaces.
  • the interface and the communication standard correspond one-to-one, and the communication standard corresponding to different interfaces is different. Therefore, the first type of control signal output by the processor through each interface is specifically used to control the power amplifier to amplify a radio frequency signal of one communication standard, and the first type of control signal output through different interfaces is used to control the power amplifier to amplify different The radio frequency signal of the communication standard.
  • the power amplifier when the power amplifier receives the first-type control signal, it can first determine which interface the first-type control signal comes from, then determine the communication standard corresponding to the interface, and then amplify the radio frequency signal of the communication standard.
  • MIPI1 corresponds to LTE
  • MIPI2 corresponds to New Radio (NR)
  • MIPI1 is connected to LB power amplifier and MB power amplifier
  • MIPI2 is connected to LB power amplifier and MB power amplifier.
  • the processor can output the first type control signal to the LB power amplifier through MIPI1, and control the LB power amplifier to amplify the LTE LB radio frequency signal.
  • the processor can output the first type control signal to the LB power amplifier through MIPI1, and control the LB power amplifier to amplify the NR LB radio frequency signal.
  • the processor can output the first type control signal to the MB power amplifier through MIPI2, and control the MB power amplifier to amplify the LTE MB radio frequency signal.
  • the processor can output the first type control signal to the MB power amplifier through MIPI2, and control the MB power amplifier to amplify the NR MB radio frequency signal.
  • the processor can output the first type control signal to the LB power amplifier through MIPI1, and control the LB power amplifier to amplify the LTE LB radio frequency signal; the processor can also pass MIPI2 outputs the first type of control signal to the MB power amplifier, and controls the MB power amplifier to amplify the NR MB radio frequency signal.
  • the processor can output the first type of control signal to the LB power amplifier through MIPI2, and control the LB power amplifier to amplify the NR LB radio frequency signal; the processor can also pass MIPI1 outputs the first type of control signal to the MB power amplifier, and controls the MB power amplifier to amplify the LTE MB radio frequency signal.
  • Method 2 The power amplifier connected to each interface is different. However, it should be understood that the number of power amplifiers connected to each interface can be one or more.
  • each power amplifier is used to process the radio frequency signal of the communication standard corresponding to the interface connected to it.
  • each power amplifier can receive the first-type control signal output through an interface.
  • the first type of control signal received by the power amplifier is specifically used to control which radio frequency signals of the communication standard that the power amplifier amplifies, and is related to the communication standard corresponding to the interface to which the power amplifier is connected.
  • the specific description is as follows:
  • the interface and the communication standard in the first case, can have a one-to-one correspondence, and the communication standards corresponding to different interfaces are different; in the second case, the interface and the communication standard have a one-to-M correspondence, and The communication standards corresponding to different interfaces are the same.
  • the interface corresponds to the communication standard one-to-one, and the communication standard corresponding to different interfaces is different. Therefore, the first type of control signal output by the processor through each interface is specifically used to control the power amplifier to amplify a radio frequency signal of one communication standard, and the first type of control signal output through different interfaces is used to control the power amplifier to amplify different The radio frequency signal of the communication standard.
  • the power amplifier when the power amplifier receives the first type of control signal, since the power amplifier is only connected to one interface and the interface corresponds to only one communication standard, the power amplifier can directly amplify the output of the first type of control signal.
  • the radio frequency signal of the corresponding communication standard since the power amplifier is only connected to one interface and the interface corresponds to only one communication standard, the power amplifier can directly amplify the output of the first type of control signal.
  • MIPI1 corresponds to LTE
  • MIPI2 corresponds to NR
  • MIPI1 is connected to the LB power amplifier
  • MIPI2 is connected to the MB power amplifier.
  • the processor can output the first type control signal through MIPI1, and control the LB power amplifier to amplify the LTE LB radio frequency signal.
  • the processor can output the first type control signal through MIPI2, and control the MB power amplifier to amplify the NR MB radio frequency signal.
  • the processor can output the first type of control signal through MIPI1, and control the LB power amplifier to amplify the LTE LB radio frequency signal; the processor can also output the first type of control signal through MIPI2 Signal, control MB power amplifier to amplify NR MB radio frequency signal.
  • the interface and the communication format have a pair of M correspondence, and the communication formats corresponding to different interfaces are the same. Therefore, the first-type control signal output by the processor through each interface can be specifically used to control the power amplifier to amplify radio frequency signals of M communication standards, and the first-type control signal output through different interfaces can be used to control the power amplifier respectively. Amplify the radio frequency signal of the same communication standard.
  • the power amplifier when the power amplifier receives the first type of control signal, it can identify that the first type of control signal is specifically used to control the power amplifier to amplify the radio frequency signal of which communication standard among the M communication standards, and then amplify the communication standard Radio frequency signal.
  • MIPI1 corresponds to LTE and NR respectively
  • MIPI2 corresponds to LTE and NR respectively
  • MIPI1 is connected to the LB power amplifier
  • MIPI1 is connected to the MB power amplifier.
  • the processor can output through MIPI1: the first type of control signal used to control the power amplifier to amplify the LTE radio frequency signal, and control the LB power amplifier to amplify the LTELB radio frequency signal.
  • the processor can output through MIPI2: the first type of control signal used to control the power amplifier to amplify the LTE radio frequency signal, and control the MB power amplifier to amplify the LTE MB radio frequency signal.
  • the processor can output through MIPI1: the first type of control signal used to control the power amplifier to amplify the NR radio frequency signal, and control the LB power amplifier to amplify the NR LB radio frequency signal.
  • the processor can output through MIPI2: the first type of control signal used to control the power amplifier to amplify the NR radio frequency signal, and control the MB power amplifier to amplify the NR MB radio frequency signal.
  • the processor can output through MIPI1: the first type of control signal used to control the power amplifier to amplify the LTE radio frequency signal, and control the LB power amplifier to amplify the LTE LB radio frequency Signal; the processor can also output through MIPI2: the first type of control signal used to control the power amplifier to amplify the NR radio frequency signal, and control the MB power amplifier to amplify the NR MB radio frequency signal.
  • the processor can output through MIPI1: the first type of control signal used to control the power amplifier to amplify NR RF signals, and control the LB power amplifier to amplify NR LB RF Signal; the processor can also output through MIPI2: the first type of control signal used to control the power amplifier to amplify the LTE radio frequency signal, and control the MB power amplifier to amplify the LTE MB radio frequency signal.
  • the processor can output through MIPI1: the first type of control signal used to control the power amplifier to amplify the NR radio frequency signal, and control the LB power amplifier to amplify the NR LB radio frequency Signal; the processor can also output through MIPI2: the first type of control signal used to control the power amplifier to amplify the NR radio frequency signal, and control the MB power amplifier to amplify the NR MB radio frequency signal.
  • the processor can output through MIPI1: the first type of control signal used to control the power amplifier to amplify the LTE RF signal, and control the LB power amplifier to amplify the LTE LB RF Signal; the processor can also output through MIPI2: the first type of control signal used to control the power amplifier to amplify the LTE radio frequency signal, and control the MB power amplifier to amplify the LTE MB radio frequency signal.
  • each interface of the processor in the first mode, is connected to the at least two power amplifiers, and in the second mode, each interface of the processor is connected to a different power amplifier. Therefore, compared with the first method, the second method can further simplify the connection relationship of the radio frequency structure, thereby further reducing the design cost and design difficulty of the radio frequency structure.
  • each MIPI can only control the operation of one PA connected to it at the same time.
  • the N frequency bands may include: frequency bands of the N communication standards among the M communication standards.
  • different frequency bands in the N frequency bands belong to different communication standards.
  • the N frequency bands may be: frequency bands of the same communication standard among the M communication standards.
  • some frequency bands in the N frequency bands may belong to the same communication standard, and the communication standards to which some frequency bands belong may be different.
  • the interface of the processor can be connected to the antenna module in the following manner.
  • Connection mode 1 All N interfaces are connected to the switch module, that is, the switch module can be connected to N interfaces respectively. In this way, in the first connection mode, the processor can output the first-type control signal through any one of the N interfaces.
  • Connection mode 2 Any one of the N interfaces is connected to the switch module, that is, the switch module is only connected to one of the N interfaces. In this way, in the second connection mode, the processor can output the second type of control signal through the interface connected to the switch module.
  • the antenna module may include the following implementation manners:
  • the antenna module may include: M antennas, each antenna supports the transmission and reception of radio frequency signals of one communication standard, and the radio frequency signals supported by different antennas for transmission and reception belong to different communication standards.
  • the antenna module may include: an antenna, which supports the transmission and reception of radio frequency signals of M communication standards.
  • the antenna module of the second implementation can reduce the number of antennas, thereby reducing the design cost of the antenna module and further reducing the cost of the radio frequency structure.
  • E is the Evolved-Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA), which represents 4G wireless access for mobile terminals
  • N is New Radio (NR), which represents the 5G wireless connection of the mobile terminal
  • DC is Dual Connectivity, which represents the dual connection of 4G and 5G.
  • E-UTRA Evolved-Universal Mobile Telecommunications System Terrestrial Radio Access
  • NR New Radio
  • DC Dual Connectivity, which represents the dual connection of 4G and 5G.
  • EN-DC based on the 4G core network, terminal equipment can realize dual connections with 4G base stations and 5G base stations at the same time. Therefore, EN-DC needs to realize that 4G and 5G communication modules can work at the same time.
  • LTE B41 is 2496-2690 megahertz (MHz)
  • NR n41 is also 2496-2690MHz.
  • Corresponding radio frequency devices such as PA and filters can support LTE B41 and It can support NR n41, so some NR frequency bands can share the radio frequency devices of the original LTE frequency band.
  • the processor 10 may be specifically represented as a central processing unit (CPU), and the processor 10 may be integrated with a modem (Modem).
  • the transceiver path 10 can be represented as an LTE/NR transceiver module.
  • the LTE/NR transceiver module may include: a power amplifier module 11, a filter module 12, and a switch module 13 connected in sequence.
  • the power amplifier module 11 is connected to the RF transceiver 30 and the MIPI of the processor 10 respectively, and the switch module 13 is respectively connected to the antenna module 40 and the MIPI of the processor;
  • the power amplifier module 11 includes at least two LTE/NR PA, and LTE/NR PA can realize the power amplification of LTE and NR signals.
  • the power amplifier module 11 includes: LB PA, MB PA, and HB PA;
  • the filter module 12 includes: a first filter, a second filter, and a third filter.
  • LB PA is connected to the first filter
  • MB PA is connected to the second filter
  • HB PA is connected to the third filter.
  • LB PA can realize the amplification of LTE LB radio frequency signal or NR LB radio frequency signal
  • MB PA can realize the amplification of LTE MB radio frequency signal or NR MB radio frequency signal
  • HB PA can realize the amplification of LTE HB radio frequency signal or NR HB radio frequency signal.
  • CPU&Modem20 is equipped with MIPI#1 and MIPI#2, each MIPI can control each LTE/NRPA in the power amplifier module 11, and each MIPI can control the switch module 13.
  • the antenna module 40 may include: an LTE antenna (Antenna, ANT) 41 and an NR antenna 42, where the LTE antenna is used for transceiving LTE, and the NR antenna is used for transceiving NR frequency band signals.
  • LTE antenna Antenna, ANT
  • NR antenna an NR antenna 42
  • the two output ports of the switch module 13 are respectively connected to the LTE antenna 41 and the NR antenna 42, which can be used to switch between different frequency bands of LTE/NR or different transmission and reception time slots.
  • the CPU&Modem20 can control the radio frequency devices in the LTE/NR transceiver module 10, such as LTE/NR PA, switch modules, etc., through MIPI output of the first type of control signal.
  • the specific control methods are as follows:
  • the CPU controls the PA and switches of the corresponding frequency band of LTE through MIPI#1 or MIPI#2 to make LTE work normally;
  • the radio frequency transceiver sends the LTE MB signal, and the CPU controls the MB PA to amplify the LTE signal through MIPI#1.
  • the amplified LTE signal passes through the LTE filter, switch module, and transmits through the LTE antenna;
  • the radio frequency transceiver sends the NR HB signal, and the CPU controls the HB PA to amplify the NR signal through MIPI#2.
  • the amplified NR signal passes through the NR filter, switch module, and is transmitted through the NR antenna;
  • MIPI#1 and MIPI#2 can be interchanged, that is, MIPI#1 can also control HBPA, and MIPI#2 can control MBPA.
  • the radio frequency structure shown in Figure 2 can realize simultaneous operation of any LTE LB and NR MB/HB, LTE MB and NR LB/HB, LTE HB and NR LB/MB in EN-DC mode.
  • the power amplifier module 11 includes: MB PA, HB1 PA, and HB2 PA.
  • the power amplifier module 11 includes: MB PA, HB1 PA, and HB2 PA.
  • any LTE MB and NR HB, LTE HB and NR HB can work simultaneously in EN-DC mode.
  • MBPA can support LTE B3
  • HB1 PA can support LTE B40
  • HB2 PA can support LTE B41 and NR n41
  • the radio frequency structure shown in Fig. 2 and Fig. 3 can realize the simultaneous transmission and reception of LTE and NB signals through a single transmission and reception channel, thereby realizing dual connection of LTE and NR frequency bands, which can greatly save design cost and hardware design difficulty.
  • the radio frequency structure shown in Figure 4 can further optimize the MIPI control mode of the LTE/NR transceiver module on the basis of Figure 3.
  • MIPI#1 controls the switch module 13 and some PAs in the power amplifier module 11, and MIPI#2 controls the remaining PA in the power amplifier module 11.
  • the specific control method is:
  • the CPU controls the PA and switches of the corresponding frequency band of LTE through MIPI#1 or MIPI#2 to make LTE work normally;
  • the radio frequency transceiver sends the LTE MB signal, and the CPU controls the MB PA to amplify the LTE signal through MIPI#1.
  • the amplified LTE signal passes through the filter and switch module, and is transmitted through the LTE antenna;
  • the radio frequency transceiver sends the NR HB signal, and the CPU controls the HB2 PA to amplify the NR signal through MIPI#2.
  • the amplified NR signal passes through the filter and switch module, and is transmitted through the NR antenna;
  • MIPI#1 and MIPI#2 are not interchangeable.
  • the radio frequency structure can realize the simultaneous operation of any LTE MB and NR HB, LTE HB and NR HB in the EN-DC mode.
  • the radio frequency structure shown in FIG. 4 further simplifies the connection relationship between the processor and the power amplifier module, thereby further reducing the design difficulty of the radio frequency structure.
  • the antenna module 40 includes: an LTE/NR antenna 43. Therefore, the radio frequency structure shown in FIG. 5 can further optimize the switch module 13 on the basis of FIG. 4.
  • the switch module 13 has a combining function, that is, it can combine the signals of the LTE frequency band and the NR frequency band into one signal, and at the same time output to the LTE/NR antenna through a single port.
  • a combiner of LB and MHB can be built in the switch module 13, which can be used to combine the LB and MHB signals and transmit and receive them through the LTE/NR antenna.
  • the power amplifier module 11 includes: LB PA and MHB PA, which can realize simultaneous operation of LTE LB and NR MHB.
  • the radio frequency structure shown in FIG. 5 reduces the number of antennas, thereby further reducing the cost and the difficulty of antenna design.
  • An embodiment of the present invention also provides a communication terminal, which includes the above-mentioned radio frequency structure.
  • radio frequency structure For the radio frequency structure, reference may be made to the above description, which will not be repeated here. It should be understood that, because the foregoing radio frequency structure is adopted, the terminal provided in the embodiment of the present invention has all the effects of the foregoing radio frequency structure, and will not be repeated here.
  • the communication terminal can be a mobile phone, a tablet (Personal Computer), a personal digital assistant (PDA), a mobile Internet device (MID), or a wearable device (Wearable Device), etc. .

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Abstract

本发明提供一种射频结构及通信终端。射频结构包括：收发通路，以及分别与收发通路连接的处理器、射频收发器和天线模组；其中，收发通路支持处理M种通信制式的射频信号；处理器用于：通过N个接口控制收发通路同时处理N个频段的射频信号；M为大于1的整数，N为大于1的整数。

Description

射频结构及通信终端
相关申请的交叉引用
本申请主张在2019年11月22日在中国提交的中国专利申请号No.201911155564.1的优先权，其全部内容通过引用包含于此。
技术领域
本发明实施例涉及通信技术领域，尤其涉及一种射频结构及通信终端。
背景技术
第五代(5th Generation，5G)通信技术在发展建设过程中可以采用两种组网方式：非独立组网(Non-standalone，NSA)和独立组网(Standalone，SA)。两种组网方式对技术要求和实现方式有不同需求。在实际组网过程中，对于NSA，其需满足长期演进(Long Term Evolution，LTE)频段和新空口(New Radio，NR)频段能够同时工作。
目前的射频结构，采用不同的收发通路对不同通信制式的射频信号进行收发处理，不同通信制式的射频信号的收发处理相对独立，造成射频结构的设计成本较高。
发明内容
本发明实施例提供一种射频结构及通信终端，以解决现有射频结构因采用不同的收发通路对不同通信制式的射频信号进行收发处理，造成射频结构成本较高的问题。
为解决上述问题，本发明是这样实现的：
第一方面，本发明实施例提供了一种射频结构，包括：收发通路，以及分别与所述收发通路连接的处理器、射频收发器和天线模组；
其中，所述收发通路支持处理M种通信制式的射频信号；所述处理器用于：通过N个接口控制所述收发通路同时处理N个频段的射频信号；
M为大于1的整数，N为大于1的整数。
第二方面，本发明实施例还提供一种通信终端，该通信终端包括如上所述的射频结构。
在本发明实施例中，射频结构的收发通路可以支持处理至少两种通信制式的射频信号，且射频结构的处理器可以通过N个接口控制所述收发通路同时处理N个频段的射频信号，N为大于1的整数。这样，本发明实施例的射频结构可以通过一个收发模组，实现不同通信制式的射频信号的同时收发处理，从而达到降低射频结构设计成本的效果。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的天线结构的示意图之一；
图2是本发明实施例提供的天线结构的示意图之二；
图3是本发明实施例提供的天线结构的示意图之三；
图4是本发明实施例提供的天线结构的示意图之四；
图5是本发明实施例提供的天线结构的示意图之五。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本申请中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或 单元。此外，本申请中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B和/或C，表示包含单独A，单独B，单独C，以及A和B都存在，B和C都存在，A和C都存在，以及A、B和C都存在的7种情况。
本发明实施例提供一种射频结构，该射频结构包括：收发通路，以及分别与所述收发通路连接的处理器、射频收发器和天线模组。
其中，所述收发通路可以支持处理M种通信制式的射频信号，因此，所述收发通路可以用于：处理射频结构收发的M种通信制式的射频信号，M为大于1的整数。
所述处理器可以用于：通过N个接口控制收发通路同时处理N个频段的射频信号，N为大于1的整数。
具体实现时，一种实现方式中，N个频段可以包括：M种通信制式中N种通信制式的频段。也就是说，N个频段所属的通信制式均不同。另一种实现方式中，N个频段可以为：M种通信制式中同一通信制式的频段。也就是说，N个频段所属的通信制式相同。当然，在另一些实施方式中，N个频段中的部分频段所属的通信制式可以相同，部分频段所属的通信制式可以不同。在实际应用中，N个频段的具体实现方式可以根据射频结构的具体结构和/或射频信号实际处理需求确定，本发明实施例对此不作限定。
需要说明的是，在实际应用中，一种实施方式中，N个频段的频率范围可以互不交叉，也就是说，N个频段中不包括频率范围交叉的频段。另一种实施方式中，N个频段中也可以包括频率范围交叉的频段，具体可根据频段划分的实际情况确定，本发明实施例对此不作限定。
另外，接口可以表现为：移动产业处理器接口(Mobile Industry Processor Interface，MIPI)，但本发明并不限制接口的具体表现形式。
所述射频收发器用于：收发M种通信制式的射频信号。
所述天线模组用于：收发M种通信制式的射频信号。
为方便理解，请参阅图1。如图1所示，射频结构可以包括：收发通路10，以及分别与收发通路10连接的处理器20、射频收发器30和天线模组40。
在图1中，处理器10设置有第一接口21和第二接口22，并通过第一接口21和第二接口22与收发通路10连接。收发通路10还分别与射频收发器 30和天线模组40连接。另外，处理器20还与射频收发器30连接。
需要说明的是，图1中的接口的设置数量仅为示例，在实际应用中，处理器设置的数量可以大于2，具体可根据实际需求设置，本发明对此不作限定。
在本发明实施例中，射频结构的收发通路可以支持处理至少两种通信制式的射频信号，且射频结构的处理器可以通过N个接口控制所述收发通路同时处理N个频段的射频信号，N为大于1的整数。这样，本发明实施例的射频结构可以通过一个收发模组，实现不同通信制式的射频信号的同时收发处理，从而达到降低射频结构设计成本的效果。
在本发明实施例中，收发通路10用于：处理射频结构收发的M种通信制式的射频信号。因此，收发通路10中包括可以用于处理射频信号的射频器件，如：PA(Power Amplifier，PA)、滤波器、开关模组等。
可选的，所述收发通路包括：
至少两个功率放大器，每个功率放大器均支持处理M种通信制式的射频信号，且不同功率放大器处理的射频信号的频段不同；
开关模组，与所述至少两个功率放大器连接；
其中，所述天线模组与所述开关模组连接；所述射频收发器与所述至少两个功率放大器连接；所述处理器分别与所述至少两个功率放大器和所述开关模组连接。
在本可选实施方式中，功率放大器可以通过集成M个功率放大单元，使得功率放大器可以用于处理M种通信制式的射频信号。其中，功率放大单元与通信制式可以为一对一的对应关系，且不同功率放大单元对应的通信制式不同，即每个功率放大单元可以处理一个通信制式的射频信号，且不同PA处理的射频信号所属的通信制式不同。
具体实现时，所述至少两个功率放大器可以包括以下几种实现方式：
实现方式一、所述至少两个功率放大器包括：低频(Low Band，LB)功率放大器、中频(Middle Band，MB)功率放大器和高频(High Band，HB)功率放大器。
实现方式二、所述至少两个功率放大器包括：MB功率放大器、HB1功 率放大器和HB2功率放大器。
实现方式三、所述至少两个功率放大器包括：LB功率放大器和MHB功率放大器。
当然，在实际应用中，所述至少两个功率放大器还可以包括其他表现形式，具体可根据频段划分需求确定，本发明实施例对此不作限定。
在本可选实施方式中，所述处理器分别与所述至少两个功率放大器和所述开关模组连接。具体实现时，处理器可以输出第一类控制信号和第二类控制信号，其中，第一类控制信号的作用对象是功率放大器，具体用于控制所述至少两个功率放大器的工作状态；第二类控制信号的作用对象是开关模组，具体用于控制所述开关模组的工作状态。需要说明的是，处理器输出的第一类控制信号和第二类控制信号相互独立，互不影响。
在本可选实施方式中，处理器的接口可以通过以下方式与所述两个功率放大器连接。
方式一、每个接口均分别与所述至少两个功率放大器连接。
在方式一中，每个功率放大器用于：处理与其连接的接口所对应的通信制式的射频信号；接口与通信制式为一对一的对应关系，且不同接口对应的通信制式不同。
在本发明实施例中，若某个接口与某个通信制式具有对应关系，则处理器通过该接口输出的第一类控制信号，用于控制该接口连接的功率放大器放大该接口对应的通信制式的射频信号。
示例性的，若MIPI1与长期演进(Long Term Evolution，LTE)对应，且MIPI1连接LB功率放大器，则处理器通过MIPI1输出的作用于第一类控制信号，用于控制LB功率放大器放大LTE LB的射频信号。
由每个接口均分别与所述至少两个功率放大器连接可知，方式一中每个功率放大器分别与所述N个接口连接。因此，在方式一中，每个功率放大器可以接收来自通过N个接口输出的第一类控制信号。
另外，在方式一中，接口与通信制式一一对应，且不同接口对应的通信制式不同。因此，处理器通过每个接口输出的第一类控制信号，具体用于控制功率放大器放大一种通信制式的射频信号，且通过不同接口输出的第一类 控制信号分别用于控制功率放大器放大不同通信制式的射频信号。
这样，功率放大器在接收到第一类控制信号的情况下，可以先确定该的第一类控制信号来自于哪个接口，再确定该接口对应的通信制式，之后，放大该通信制式的射频信号。
为方便理解，示例说明如下：
假设MIPI1与LTE对应，MIPI2与新空口(New Radio，NR)对应，MIPI1连接LB功率放大器和MB功率放大器，MIPI2连接LB功率放大器和MB功率放大器。
在射频收发器发射LTE LB射频信号的情况下，处理器可以通过MIPI1向LB功率放大器输出第一类控制信号，控制LB功率放大器放大LTE LB射频信号。
在射频收发器发射NR LB射频信号的情况下，处理器可通过MIPI1向LB功率放大器输出第一类控制信号，控制LB功率放大器放大NR LB射频信号。
在射频收发器发射LTE MB射频信号的情况下，处理器可以通过MIPI2向MB功率放大器输出第一类控制信号，控制MB功率放大器放大LTE MB射频信号。
在射频收发器发射NR MB射频信号的情况下，处理器可以通过MIPI2向MB功率放大器输出第一类控制信号，控制MB功率放大器放大NR MB射频信号。
在射频收发器同时发射LTE LB射频信号和NR MB射频信号的情况下，处理器可以通过MIPI1向LB功率放大器输出第一类控制信号，控制LB功率放大器放大LTE LB射频信号；处理器还可以通过MIPI2向MB功率放大器输出第一类控制信号，控制MB功率放大器放大NR MB射频信号。
在射频收发器同时发射LTE MB射频信号和NR LB射频信号的情况下，处理器可以通过MIPI2向LB功率放大器输出第一类控制信号，控制LB功率放大器放大NR LB射频信号；处理器还可以通过MIPI1向MB功率放大器输出第一类控制信号，控制MB功率放大器放大LTE MB射频信号。
方式二、每个接口连接的功率放大器不同。但应理解的是，每个接口连 接的功率放大器的数量可以为一个或多个。
在方式二中，每个功率放大器用于：处理与其连接的接口所对应的通信制式的射频信号。
由每个接口连接的功率放大器不同可知，每个功率放大器连接一个接口。因此，在方式二中，每个功率放大器可以接收来自通过一个接口输出的第一类控制信号。
具体实现时，功率放大器接收到的第一类控制信号具体用于控制功率放大器放大哪些通信制式的射频信号，与该功率放大器连接的接口所对应的通信制式相关，具体说明如下：
在方式二中，在情况一中，接口与通信制式可以为一对一的对应关系，且不同接口对应的通信制式不同；在情况二中，接口与通信制式为一对M的对应关系，且不同接口对应的通信制式相同。
对于情况一，接口与通信制式一一对应，且不同接口对应的通信制式不同。因此，处理器通过每个接口输出的第一类控制信号，具体用于控制功率放大器放大一种通信制式的射频信号，且通过不同接口输出的第一类控制信号分别用于控制功率放大器放大不同通信制式的射频信号。
这样，功率放大器在接收到第一类控制信号的情况下，由于功率放大器仅连接一个接口，且该接口仅对应一个通信制式，因此，功率放大器可以直接放大输出该第一类控制信号的接口所对应的通信制式的射频信号。
为方便理解，示例说明如下：
假设MIPI1与LTE对应，MIPI2与NR对应，MIPI1连接LB功率放大器，MIPI2连接MB功率放大器。
在射频收发器发射LTE射频信号的情况下，处理器可以通过MIPI1输出第一类控制信号，控制LB功率放大器放大LTE LB射频信号。
在射频收发器发射NR射频信号的情况下，处理器可以通过MIPI2输出第一类控制信号，控制MB功率放大器放大NR MB射频信号。
在射频收发器同时发射LTE射频信号和NR射频信号的情况下，处理器可以通过MIPI1输出第一类控制信号，控制LB功率放大器放大LTE LB射频信号；处理器还可以通过MIPI2输出第一类控制信号，控制MB功率放大 器放大NR MB射频信号。
对于情况二，接口与通信制式为一对M的对应关系，且不同接口对应的通信制式相同。因此，处理器通过每个接口输出的第一类控制信号，具体可以用于控制功率放大器放大M种通信制式的射频信号，且通过不同接口输出的第一类控制信号可以分别用于控制功率放大器放大相同的通信制式的射频信号。
这样，功率放大器在接收到第一类控制信号的情况下，可以识别该第一类控制信号具体用于控制功率放大器放大M个通信制式中的哪个通信制式的射频信号，之后，放大该通信制式的射频信号。
为方便理解，示例说明如下：
假设MIPI1分别与LTE和NR对应，MIPI2分别与LTE和NR对应，MIPI1连接LB功率放大器，MIPI1连接MB功率放大器。
在射频收发器发射LTE LB的情况下，处理器可以通过MIPI1输出：用于控制功率放大器放大LTE射频信号的第一类控制信号，控制LB功率放大器放大LTELB射频信号。
在射频收发器发射LTE MB的情况下，处理器可以通过MIPI2输出：用于控制功率放大器放大LTE射频信号的第一类控制信号，控制MB功率放大器放大LTE MB射频信号。
在射频收发器发射NR LB的情况下，处理器可以通过MIPI1输出：用于控制功率放大器放大NR射频信号的第一类控制信号，控制LB功率放大器放大NR LB射频信号。
在射频收发器发射NR MB的情况下，处理器可以通过MIPI2输出：用于控制功率放大器放大NR射频信号的第一类控制信号，控制MB功率放大器放大NR MB射频信号。
在射频收发器同时发射LTE LB射频信号和NR MB射频信号的情况下，处理器可以通过MIPI1输出：用于控制功率放大器放大LTE射频信号的第一类控制信号，控制LB功率放大器放大LTE LB射频信号；处理器还可以通过MIPI2输出：用于控制功率放大器放大NR射频信号的第一类控制信号，控制MB功率放大器放大NR MB射频信号。
在射频收发器同时发射LTE MB射频信号和NR LB射频信号的情况下，处理器可以通过MIPI1输出：用于控制功率放大器放大NR射频信号的第一类控制信号，控制LB功率放大器放大NR LB射频信号；处理器还可以通过MIPI2输出：用于控制功率放大器放大LTE射频信号的第一类控制信号，控制MB功率放大器放大LTE MB射频信号。
在射频收发器同时发射NR LB射频信号和NR MB射频信号的情况下，处理器可以通过MIPI1输出：用于控制功率放大器放大NR射频信号的第一类控制信号，控制LB功率放大器放大NR LB射频信号；处理器还可以通过MIPI2输出：用于控制功率放大器放大NR射频信号的第一类控制信号，控制MB功率放大器放大NR MB射频信号。
在射频收发器同时发射LTE LB射频信号和LTE MB射频信号的情况下，处理器可以通过MIPI1输出：用于控制功率放大器放大LTE射频信号的第一类控制信号，控制LB功率放大器放大LTE LB射频信号；处理器还可以通过MIPI2输出：用于控制功率放大器放大LTE射频信号的第一类控制信号，控制MB功率放大器放大LTE MB射频信号。
由上述内容可知，方式一中处理器的每个接口均分别与所述至少两个功率放大器连接，方式二中处理器的每个接口连接的功率放大器不同。因此，相比于方式一，方式二可以进一步简化射频结构的连接关系，从而可以进一步降低射频结构的设计成本和设计难度。
需要说明的是，在本发明实施例中，每个MIPI在同一时间，仅可以控制其连接的一个PA工作。
因此，对于前述方式一、方式二中的情况一以及方式二中的情况二，所述N个频段可以包括：所述M种通信制式中N种通信制式的频段。也就是说，N个频段中不同频段所属的通信制式不同。
对于方式二中的情况二，由于接口与通信制式为一对M的对应关系，且不同接口对应的通信制式相同。因此，所述N个频段可以为：所述M种通信制式中同一通信制式的频段。
当然，对于方式二中的情况二，所述N频段中可以有部分频段属于同一通信制式，部分频段所属的通信制式可以不同。
具体可参考前述方法一、方式二中的情况一以及方式二中的情况二种的示例说明，此处不再赘述。
在本可选实施方式中，处理器的接口可通过以下方式与所述天线模组连接。
连接方式一、N个接口均与所述开关模组连接，也就是说，所述开关模组可分别与N个接口连接。这样，在连接方式一中，处理器可以通过N个接口中的任一接口输出第一类控制信号。
连接方式二、N个接口中的任意一个接口与所述开关模组连接，也就是说，所述开关模组仅与N个接口中的一个接口连接。这样，在连接方式二中，处理器可以通过与所述开关模组连接的接口输出第二类控制信号。
另外，在本发明实施例中，天线模组可以包括以下实现方式：
实现方式一、所述天线模组可包括：M个天线，每个天线支持一种通信制式的射频信号的收发，且不同天线支持收发的射频信号所属的通信制式不同。
实现方式二、所述天线模组可以包括：一个天线，支持M种通信制式的射频信号的收发。
相比于实现方式一，实现方式二的天线模组可以减少天线的设置数量，从而可以降低天线模组的设计成本，进而降低射频结构的成本。
需要说明的是，本发明实施例中介绍的多种可选的实施方式，在彼此不冲突的情况下可以相互结合实现，也可以单独实现，对此本发明实施例不作限定。
为方便理解，以5G通信技术中的NSA示例说明如下：
在5G通信技术的NSA的组网过程中，通过采用5G核心网、第四代(4th-Generation，4G)核心网、5G基站、4G基站混合搭配的方式实现不同的非独立组网模式，如下表所示：
Figure PCTCN2020129318-appb-000001
以非独立组网的EN-DC模式为例，E为演进的通用移动通信系统地面无线接入(Evolved-Universal Mobile Telecommunications System Terrestrial Radio Access，E-UTRA)，代表移动终端的4G无线接入；N为新空口(New Radio，NR)，代表移动终端的5G无线连接；DC为双连接(Dual Connectivity)，代表4G和5G的双连接。在EN-DC模式下，以4G核心网为基础，终端设备能够实现同时与4G基站和5G基站进行双连接。因此，EN-DC需要实现4G和5G的通信模块能够同时工作。
目前一些NR频段与LTE频段有频率重叠，如LTE B41为2496-2690兆赫兹(MHz)，而NR n41同样为2496-2690MHz，对应的射频器件如PA、滤波器等既能支持LTE B41，又能支持NR n41，因此部分NR频段可以共用原LTE频段的射频器件。
在图1的基础上，处理器10具体可以表现为中央处理器(Central Processing Unit，CPU)，且处理器10中可以集成有调制解调器(Modem)。收发通路10可以表现为LTE/NR收发模组。LTE/NR收发模组可以包括：依次连接的功率放大模组11、滤波模组12和开关模组13。其中，功率放大模组11分别与射频收发器30与处理器10的MIPI连接，开关模组13分别与天线模组40与处理器的MIPI连接；功率放大模组11包括至少两个LTE/NR PA，且LTE/NR PA能够实现LTE和NR信号的功率放大。具体可参阅图2至图5。
在图2中，功率放大模组11包括：LB PA、MB PA和HB PA；滤波模组12包括：第一滤波器、第二滤波器和第三滤波器。其中，LB PA与第一滤波器连接，MB PA与第二滤波器连接，HB PA与第三滤波器连接。LB PA能够实现LTE LB射频信号或NR LB射频信号的放大；MB PA能够实现LTE MB射频信号或NR MB射频信号的放大；HB PA能够实现LTE HB射频信号或NR HB射频信号的放大。
CPU&Modem20设有MIPI#1和MIPI#2，每一个MIPI均可控制功率放大模组11中的每个LTE/NRPA，每一个MIPI均可控制开关模组13。
天线模组40可以包括：LTE天线(Antenna，ANT)41、NR天线42，LTE天线用于收发LTE，NR天线用于收发NR频段信号。
开关模组13的两输出端口分别接LTE天线41和NR天线42，可以用于切换LTE/NR的不同频段或不同的收发时隙。
具体实现时，CPU&Modem20可以通过MIPI输出第一类控制信号控制LTE/NR收发模组10内的射频器件，如LTE/NR PA、开关模组等，具体控制方式为：
当LTE独立进行工作时，CPU通过MIPI#1或MIPI#2控制LTE相应频段的PA、开关等器件，使LTE进行正常工作；
当处于EN-DC工作模式时，以LTE MB和NR HB的EN-DC组合为例。
射频收发器发送LTE MB信号，CPU通过MIPI#1控制MB PA对LTE信号进行放大，放大后的LTE信号经过LTE滤波器、开关模组，并经过LTE天线进行发射；
同时射频收发器发送NR HB信号，CPU通过MIPI#2控制HB PA对NR信号进行放大，放大后的NR信号经过NR滤波器、开关模组，并经过NR天线进行发射；
其中，MIPI#1和MIPI#2的控制功能可以互换，即也可以MIPI#1控制HB PA，MIPI#2控制MB PA。
如图2所示的射频结构，可以实现在EN-DC模式下任意LTE LB与NR MB/HB、LTE MB与NR LB/HB、LTE HB与NR LB/MB的同时工作。
图3所示的射频结构，与图2所示的射频结构的区别在于：在图3中，功率放大模组11包括：MB PA、HB1 PA，HB2 PA。这样，可实现在EN-DC模式下任意LTE MB与NR HB、LTE HB与NR HB的同时工作。
如MB PA能够支持LTE B3，HB1 PA能够支持LTE B40，HB2 PA能够支持LTE B41和NR n41，则此硬件设计方案可实现LTE B3+NR n41和LTE B40+NR n41的EN-DC组合。
图2和图3所示的射频结构，可以通过一路收发通路实现LTE和NB信号的同时收发，进而实现LTE和NR频段的双连接，从而可以大大节省设计成本和硬件设计难度。
如图4所示的射频结构，可以在图3的基础上进一步优化LTE/NR收发模组的MIPI控制方式。
在图4中，MIPI#1控制开关模组13和功率放大模组11中的部分PA，MIPI#2控制功率放大模组11中剩余的PA。具体控制方式为：
当LTE独立工作时，CPU通过MIPI#1或MIPI#2控制LTE相应频段的PA、开关等器件，使LTE进行正常工作；
当处于EN-DC工作模式时，以LTE MB和NR HB的EN-DC组合为例。
射频收发器发送LTE MB信号，CPU通过MIPI#1控制MB PA对LTE信号进行放大，放大后的LTE信号经过滤波器、开关模组，并经过LTE天线进行发射；
同时射频收发器发送NR HB信号，CPU通过MIPI#2控制HB2 PA对NR信号进行放大，放大后的NR信号经过滤波器、开关模组，并经过NR天线进行发射；
其中，MIPI#1和MIPI#2功能不可以互换。
如图4所示射频结构，可以实现在EN-DC模式下任意LTE MB与NR HB、LTE HB与NR HB的同时工作。
如图4所示的射频结构，相比于图3所示的射频结构，进一步简化了处理器与功率放大模组的连接关系，从而可以进一步降低射频结构的设计难度。
如图5所示，天线模组40包括：LTE/NR天线43。因此，图5所示的射频结构可以在图4的基础上可以进一步优化开关模组13。在图5中，开关模组13具有合路功能，即可以将LTE频段和NR频段的信号合并为一路信号，同时通过单端口输出至LTE/NR天线。具体实现时，开关模组13中可内置LB和MHB的合路器，可用于将LB和MHB信号合并，并通过LTE/NR天线进行发射和接收。
在图5中，功率放大摸11包括：LB PA和MHB PA，可以实现LTE LB和NR MHB的同时工作。
如图5所示的射频结构，相比于图4所示的射频结构，减少了天线数量，从而可以进一步降低成本和天线设计难度。
本发明实施例还提供一种通信终端，该终端包括如上所述的射频结构。
其中，射频结构可以参考上述描述，此处不再赘述。应理解的是，由于采用了前述射频结构，因此本发明实施例提供的终端具有上述射频结构的所有 效果，此处不再赘述。
在实际应用中，通信终端可以是手机、平板电脑(Tablet Personal Computer)、个人数字助理(personal digital assistant，PDA)、移动上网装置(Mobile Internet Device，MID)或可穿戴式设备(Wearable Device)等。
以上，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种射频结构，所述射频结构包括：收发通路，以及分别与所述收发通路连接的处理器、射频收发器和天线模组；
    其中，所述收发通路支持处理M种通信制式的射频信号；所述处理器用于：通过N个接口控制所述收发通路同时处理N个频段的射频信号；
    M为大于1的整数，N为大于1的整数。
  2. 根据权利要求1所述的射频结构，其中，所述收发通路包括：
    至少两个功率放大器，每个功率放大器均支持处理M种通信制式的射频信号，且不同功率放大器处理的射频信号的频段不同；
    开关模组，与所述至少两个功率放大器连接；
    其中，所述天线模组与所述开关模组连接；所述射频收发器与所述至少两个功率放大器连接；所述处理器分别与所述至少两个功率放大器和所述开关模组连接。
  3. 根据权利要求2所述的射频结构，其中，每个接口均分别与所述至少两个功率放大器连接；
    其中，每个功率放大器用于：处理与其连接的接口所对应的通信制式的射频信号；接口与通信制式为一对一的对应关系，且不同接口对应的通信制式不同。
  4. 根据权利要求2所述的射频结构，其中，每个接口连接的功率放大器不同；
    其中，每个功率放大器用于：处理与其连接的接口所对应的通信制式的射频信号。
  5. 根据权利要求4所述的射频结构，其中，接口与通信制式为一对一的对应关系，且不同接口对应的通信制式不同。
  6. 根据权利要求4所述的射频结构，其中，接口与通信制式为一对M的对应关系，且不同接口对应的通信制式相同。
  7. 根据权利要求3、5或6所述的射频结构，其中，所述N个频段包括：所述M种通信制式中N种通信制式的频段。
  8. 根据权利要求6所述的射频结构，其中，所述N个频段为：所述M种通信制式中同一通信制式的频段。
  9. 根据权利要求2所述的射频结构，其中，所述天线模组包括：
    一个天线，支持M种通信制式的射频信号的收发。
  10. 一种通信终端，包括如权利要求1至9中任一项所述的射频结构。
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