WO2024067406A1 - 射频电路和电子设备 - Google Patents

射频电路和电子设备 Download PDF

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Publication number
WO2024067406A1
WO2024067406A1 PCT/CN2023/120775 CN2023120775W WO2024067406A1 WO 2024067406 A1 WO2024067406 A1 WO 2024067406A1 CN 2023120775 W CN2023120775 W CN 2023120775W WO 2024067406 A1 WO2024067406 A1 WO 2024067406A1
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WO
WIPO (PCT)
Prior art keywords
band
frequency band
antenna
module
receiving
Prior art date
Application number
PCT/CN2023/120775
Other languages
English (en)
French (fr)
Inventor
程守刚
尹飞
Original Assignee
维沃移动通信有限公司
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Filing date
Publication date
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Publication of WO2024067406A1 publication Critical patent/WO2024067406A1/zh

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Classifications

    • 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
    • H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
    • H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—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 present application belongs to the field of communication technology, and specifically relates to a radio frequency circuit and an electronic device.
  • 5G has the characteristics of high speed and low latency, which can bring better user experience to end users.
  • the network architecture of 5G can usually be divided into two architectures: Standalone (SA) and Non-Standalone (NSA). Under the NSA architecture, Long Term Evolution (LTE) and New Radio (NR) are required to send and receive signals in parallel.
  • SA Standalone
  • NSA Non-Standalone
  • LTE Long Term Evolution
  • NR New Radio
  • the purpose of the embodiments of the present application is to provide a radio frequency circuit and an electronic device that can solve the problem that the radio frequency circuit used in the current terminal for parallel reception of signals in the two frequency bands of B7 and n66 is highly complex and difficult to implement.
  • an embodiment of the present application provides a radio frequency circuit, which includes four antenna modules, and the four antenna modules are used to receive signals in the B7 band and signals in the n66 band in parallel
  • the first antenna module of the radio frequency circuit includes a first receiving module, a second receiving module and a first antenna
  • the first antenna in the scenario of inter-band carrier aggregation CA of the n66 band and dual connection ENDC of the B7 band and the n66 band, the first antenna is connected to the first receiving module, and the first antenna module is used to receive signals in the B7 band and signals in the first band in the n66 band in parallel
  • the first antenna in the scenario of intra-band CA of the n66 band, the first antenna is connected to the second receiving module, and the first antenna module is used to receive signals in the n66 band.
  • an embodiment of the present application provides an electronic device, which includes the radio frequency circuit described in the first aspect.
  • the radio frequency circuit includes four antenna modules for receiving B7 band and n66 band signals in parallel.
  • the receiving module in the first antenna module can be flexibly called to receive signals according to the receiving scenario of the n66 band signal.
  • the signal of the B7 band and the signal of the first band in the n66 band can be received in parallel by the first receiving module.
  • the signal of the n66 band can be received by the second receiving module.
  • the n66 band into narrowband (i.e., the first band) and broadband (i.e., the full band), and calling different receiving modules for signal reception according to different scenarios, it will neither increase the complexity of the circuit nor the number of antennas. It can not only save external components and reduce circuit costs, but also reduce the insertion loss of the radio frequency path, improve the radio frequency performance, and effectively improve the user experience.
  • FIG1 is a schematic structural diagram of a radio frequency circuit for implementing an embodiment of the present application.
  • FIG2 is a schematic structural diagram of a radio frequency circuit for implementing an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a first antenna module implementing an embodiment of the present application.
  • FIG4 is a schematic diagram of a radio frequency signal flow of a first antenna module implementing an embodiment of the present application
  • FIG5 is a schematic diagram of a radio frequency signal flow of a first antenna module implementing an embodiment of the present application
  • FIG6 is a schematic structural diagram of a radio frequency circuit for implementing an embodiment of the present application.
  • first, second, etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first”, “second”, etc. are generally of one type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally indicates that the objects associated with each other are in an "or” relationship.
  • the device for receiving the n66 band signal in a certain antenna module of the existing RF architecture is separated separately, and then the newly added antenna is connected to the separated n66 device, so that the signals of the B7 band and the n66 band can be received in parallel through 5 antennas.
  • a B7 duplexer and a combiner are added on the basis of a certain antenna module of the existing RF architecture, and the combiner is used to combine the B7 duplexer and the n66 duplexer in the antenna module, so that the signals of the B7 band and the n66 band can be received in parallel through 4 antennas.
  • the first solution requires five antennas to receive signals from the B7 and n66 bands in parallel, so it is difficult to implement.
  • the second solution requires additional duplexers and combiners, so it is not only more expensive, but also increases the layout area. and RF path loss.
  • the current RF circuit is highly complex and difficult to implement when receiving signals in the B7 band and the n66 band in parallel.
  • the embodiments of the present application provide a radio frequency circuit and electronic device, which divides the n66 frequency band into narrowband (i.e., the first frequency band in the n66 frequency band, 2110MHz-2180MHz) and broadband (i.e., the full frequency band of n66, 2110MHz-2200MHZ), and calls different receiving modules for signal reception according to different scenarios.
  • narrowband i.e., the first frequency band in the n66 frequency band, 2110MHz-2180MHz
  • broadband i.e., the full frequency band of n66, 2110MHz-2200MHZ
  • FIG1 is a schematic structural diagram of a radio frequency circuit for implementing an embodiment of the present application.
  • the radio frequency circuit 10 includes four antenna modules, namely, a first antenna module 11, a second antenna module 12, a third antenna module 13 and a fourth antenna module 14. These four antenna modules can be used to receive signals in the B7 band and signals in the n66 band in parallel.
  • the B7 band and the n66 band are both downlink bands
  • the B7 band is specifically 2620MHz-2690MHz
  • the n66 band is specifically 2110MHz-2200MHz.
  • the first antenna module 11 shown in FIG1 includes a first receiving module 111, a second receiving module 112 and a first antenna 113.
  • the first antenna 113 can be connected to the first receiving module 111 or the second receiving module 112 according to the application scenario.
  • the n66 band can be divided into a narrowband (i.e., the first band, a part of the n66 band) and a broadband (i.e., the full band of n66).
  • the first antenna 113 is connected to the first receiving module 111 (the second receiving module 112 can be in a suspended state), and the first antenna module 11 can be used to receive signals of the B7 band and signals of the first band in the n66 band in parallel.
  • the first antenna 113 is connected to the second receiving module 112 (the first receiving module 111 may be in a suspended state), and the first antenna module 111 may be used to receive signals in the n66 frequency band.
  • the n66 frequency band into narrowband (i.e. the first frequency band) and broadband (i.e. the full frequency band), and calling different receiving modules for signal reception according to different scenarios, it will neither increase the complexity of the circuit nor the number of antennas. It can not only save external devices and reduce circuit costs, but also reduce the insertion loss of the RF path, improve the RF performance, and effectively improve the user experience.
  • the first receiving module 111 shown in FIG. 1 may specifically include a B1 receiving unit and a B7 receiving unit (not shown in FIG. 1 ).
  • the B1 receiving unit may be used to receive signals of the first frequency band in the n66 frequency band
  • the B7 receiving unit may be used to receive signals of the B7 frequency band. That is to say, when the first antenna 113 is connected to the first receiving module 111, the first receiving module 111 may receive signals of the first frequency band in the n66 frequency band through the internal B1 receiving unit, and receive signals of the B7 frequency band through the internal B7 receiving unit, thereby achieving parallel reception of signals of the B7 frequency band and signals of the first frequency band in the n66 frequency band.
  • the first frequency band in the above-mentioned n66 frequency band can specifically be 2110MHz-2180MHz, and the first frequency band basically overlaps with the B1 frequency band (downlink frequency band, 2110MHz-2170MHz).
  • the B1 receiving unit in the RF circuit for receiving the B1 frequency band signal that is, the signal reception of the 2110MHz-2180MHz frequency band in the n66 frequency band and the signal reception of the B1 frequency band share the B1 frequency band path (that is, the B1 receiving unit)
  • the B1 receiving unit that is, the signal reception of the 2110MHz-2180MHz frequency band in the n66 frequency band and the signal reception of the B1 frequency band share the B1 frequency band path (that is, the B1 receiving unit)
  • the second receiving module 112 shown in FIG. 1 may specifically include an n66 receiving unit (not shown in FIG. 1 ).
  • the n66 receiving unit may be used to receive signals in the n66 frequency band. That is to say, when the first antenna 113 is connected to the second receiving module 112, the second receiving module 112 can receive n66 frequency band signals through the internal n66 receiving unit, that is, in the scenario of n66 frequency band intra-band CA, when the first antenna module 11 receives n66 frequency band signals, it is not received through the first receiving module 111, but is received through the n66 receiving unit in the second receiving module 112 outside the first receiving module 111.
  • the 3rd Generation Partnership Project (3GPP) 3GPP requires that in the scenario of intra-band CA in the n66 frequency band, signal reception needs to cover the full frequency band of n66 (2110MHz-2200MHz), and in the scenario of inter-band CA in n66, signal reception may not need to cover the full frequency band of n66. Therefore, in the scenario of inter-band CA in n66, the embodiment of the present application uses the first receiving module to implement the reception of narrowband (i.e., the first frequency band) signals, and uses the second receiving module to implement the reception of broadband (i.e., the full frequency band of n66) signals in the scenario of intra-band CA in n66, which can meet the requirements of 3GPP.
  • 3GPP 3rd Generation Partnership Project
  • the first antenna module 11 shown in FIG. 1 may further include a switch unit (not shown in FIG. 1 ).
  • the switch unit may include two connection ports, one connection port is connected to the first antenna 113, and the other connection port may be connected to the first receiving module 111 or the second receiving module 112.
  • the switch unit may be a single-pole double-throw switch.
  • the radio frequency circuit may further include a transceiver module, and the first antenna module, the second antenna module, the third antenna module, and the fourth antenna module in the radio frequency circuit may be connected to the transceiver module in parallel, as shown in FIG2.
  • the first antenna module 11, the second antenna module 12, the third antenna module 13, and the fourth antenna module 14 in the radio frequency circuit may be connected to the transceiver module 15 in parallel, and the transceiver module 15 and the four antenna modules together realize parallel transceiver of signals in the B7 frequency band and the n66 frequency band.
  • the first antenna module may be as shown in FIG. 3 .
  • FIG3 is a schematic structural diagram of a first antenna module for implementing an embodiment of the present application.
  • the first antenna module 11 includes a B1 receiving unit 21, a B7 receiving unit 22, an n66 receiving unit 23, a switch unit 24, and a first antenna 113.
  • the first antenna module 11 also includes power amplifiers (Power amplifier, PA) 261, 262, 263 and low noise amplifiers (Low Noise Amplifier, LNA) 271, 272, 273.
  • Power amplifier, PA Power amplifier
  • LNA Low Noise Amplifier
  • the B1 receiving unit 21 is connected to the transceiver module 15 through PA261 and LNA271
  • the B7 receiving unit 22 is connected to the transceiver module 15 through PA262 and LNA272
  • the n66 receiving unit 23 is connected to the transceiver module 15 through PA263 and LNA273.
  • the switch unit 24 is connected to the first antenna 113, and the other end is connected to the
  • the B1 receiving unit 21 is connected to the B7 receiving unit 22, and is used to receive signals in the B7 frequency band and signals in the first frequency band of the n66 frequency band in parallel.
  • the specific flow direction of the RF signal can be seen in FIG. 4 .
  • the signal of the B7 frequency band and the signal of the first frequency band in the n66 frequency band are received in parallel, the signal of the B7 frequency band can enter the transceiver module 15 through the first antenna 113, the switch unit 24, the B7 receiving unit 22 and the LNA 272 in sequence, and the signal of the first frequency band in the n66 frequency band can enter the transceiver module 15 through the first antenna 111, the switch unit 24, the B1 receiving unit 21 and the LNA 271 in sequence.
  • the signal of the B7 frequency band and the signal of the first frequency band in the n66 frequency band are sent in parallel, the signal of the B7 frequency band can be sent through the transceiver module 15, the PA 262, the B7 receiving unit 22, the switch unit 24 and the first antenna 113 in sequence, and the signal of the first frequency band in the n66 frequency band can be sent through the transceiver module 15, the PA 261, the B1 receiving unit 21, the switch unit 24 and the first antenna 113 in sequence.
  • one end of the switch unit 24 is connected to the first antenna 113, and the other end is connected to the n66 receiving unit 23 for receiving signals in the n66 frequency band.
  • the specific flow direction of the RF signal can be seen in Figure 5.
  • the signal in the n66 frequency band when receiving a signal in the n66 frequency band, the signal in the n66 frequency band can sequentially pass through the first antenna 113, the switch unit 24, the n66 receiving unit 23, and the LNA 273 to enter the transceiver module 15.
  • the signal in the n66 frequency band when sending a signal in the n66 frequency band, the signal in the n66 frequency band can sequentially pass through the transceiver module 15, the PA 263, the n66 receiving unit 23, the switch unit 24, and the first antenna 113 to send.
  • the parameters of the RF circuit receiving path can also be calibrated.
  • the path parameters corresponding to the RF signal flow shown in Figures 4 and 5 can be calibrated. In this way, when the signal is received through the corresponding path, the signal can be received based on the calibrated parameters.
  • the first antenna module, the second antenna module, the third antenna module and the fourth antenna module included in the radio frequency circuit can jointly realize the parallel transmission and reception of B7 band signals and n66 band signals.
  • the second antenna module, the third antenna module and the fourth antenna module can also include corresponding receiving units and antennas, as shown in Figure 6.
  • FIG6 is a schematic structural diagram of a radio frequency circuit for implementing an embodiment of the present application.
  • the radio frequency circuit includes a first antenna module 11, a second antenna module 12, a third antenna module 13, a fourth antenna module 14, a transceiver module 15, PA261 to PA264, and LNA271 to LNA277.
  • the first antenna module 11 includes a B1 receiving unit 21, a B7 receiving unit 22, an n66 receiving unit 23, a switch unit 24, and a first antenna 113.
  • the second antenna module 12 includes a B7 receiving unit 121, an n66 receiving unit 122, and a second antenna 123.
  • the second antenna module 12 is used to receive signals in the B7 frequency band and signals in the n66 frequency band in parallel.
  • the third antenna module 13 includes an n66 receiving unit 131 and a third antenna 132.
  • the third antenna module 13 is used to receive signals in the n66 frequency band.
  • the fourth antenna module 14 includes an n66 receiving unit 141 and a fourth antenna 142.
  • the fourth antenna module 14 is used to receive signals in the n66 frequency band.
  • the first antenna module 11 , the second antenna module 12 , the third antenna module 13 and the fourth antenna module 14 are connected to the transceiver module 15 in parallel.
  • the B7 band signal when receiving signals in the B7 band and signals in the n66 band in parallel, the B7 band signal can be received through two antennas, and the n66 band signal can be received through four antennas.
  • four antenna modules in the radio frequency circuit receive signals of the B7 band and signals of the n66 band in parallel, specifically: the first antenna module is used for primary receiver (PRX) of the B7 band and multiple input multiple output (MIMO) full-band reception of the n66 band PRX; the second antenna module is used for full-band reception of the n66 band and diversity reception (DRX) of the B7 band; the third antenna module is used for full-band PRX of the n66 band; the fourth antenna module is used for DRX MIMO full-band reception of the n66 band.
  • PRX primary receiver
  • MIMO multiple input multiple output
  • the RF circuit provided in the embodiment of the present application can also be used to receive the B66 frequency band signal and the n7 frequency band signal in parallel, that is, without changing the RF circuit structure, the module/unit for receiving the n66 frequency band signal is used to receive the B66 frequency band signal, and the module/unit for receiving the B7 frequency band signal is used to receive the n7 frequency band signal.
  • the division of narrowband and broadband divides the B66 frequency band into narrowband (i.e., the first frequency band mentioned above) and broadband (i.e., the full frequency band of B66).
  • narrowband i.e., the first frequency band mentioned above
  • broadband i.e., the full frequency band of B66.
  • the first antenna in the first antenna module is connected to the second receiving module, and the first antenna module can be used to receive the signal of the B66 frequency band.
  • the B66 frequency band into narrowband (i.e., the first frequency band) and broadband (i.e., the full frequency band), and calling different receiving modules for signal reception in different scenarios, the parallel reception of the signal of the B66 frequency band and the signal of the n7 frequency band can be realized, which will neither increase the complexity of the circuit nor increase the number of antennas. It can not only save external components and reduce circuit costs, but also reduce the insertion loss of the RF path, improve the RF performance, and effectively improve the user experience.
  • the radio frequency circuit is used to receive a signal in the B66 band and a signal in the n7 band in parallel:
  • the B1 receiving unit included in the first receiving module can be used to receive signals in the first frequency band in B66, and the B7 receiving unit included in the first receiving module can be used to receive signals in the n7 frequency band.
  • the first frequency band is the B1 frequency band, that is, 2110MHz-2180MHz.
  • the n66 receiving unit included in the second receiving module may be used to receive signals in the B66 frequency band.
  • the second antenna module in the RF circuit includes a B7 receiving unit, an n66 receiving unit and a second antenna, which can be used to receive signals in the n7 band and the B66 band in parallel; the n66 receiving unit and the third antenna included in the third antenna module can be used to receive signals in the B66 band; the n66 receiving unit and the fourth antenna included in the fourth antenna module can be used to receive signals in the B66 band.
  • the first antenna module can be used for PRX in the n7 band and PRX MIMO full-band reception in the B66 band; the second antenna module is used for full-band reception in the B66 band and DRX in the n7 band; the third antenna module is used for full-band PRX in the B66 band; and the fourth antenna module is used for DRX MIMO full-band reception in the B66 band.
  • the radio frequency circuit further includes a transceiver module, and the four antenna modules in the radio frequency circuit can be connected to the transceiver module in parallel, and the four antenna modules and the transceiver module can jointly implement Now the B66 band signals and the n7 band signals are transmitted and received in parallel.
  • the specific implementation method of the RF circuit for parallel reception of signals in the B66 frequency band and signals in the n7 frequency band can be found in the specific implementation method of the RF circuit for parallel reception of signals in the n66 frequency band and signals in the B7 frequency band, which will not be described in detail here.
  • the radio frequency circuit provided in the embodiment of the present application includes four antenna modules for receiving B7/n7 band and n66/B66 band signals in parallel.
  • the receiving module in the first antenna module can be flexibly called for signal reception according to the receiving scenario of the n66/B66 band signal.
  • the signal of the B7/n7 band and the signal of the first band in the n66/B66 band can be received in parallel by the first receiving module, and in the scenario of intra-band CA of the n66/B66 band, the signal of the n66/B66 band can be received by the second receiving module.
  • the n66/B66 band into narrowband (i.e., the first band) and broadband (i.e., the full band), and calling different receiving modules for signal reception according to different scenarios, neither the complexity of the circuit nor the number of antennas will be increased, which can not only save external components and reduce circuit costs, but also reduce the insertion loss of the radio frequency path, improve the radio frequency performance, and effectively improve the user experience.
  • An embodiment of the present application further provides an electronic device, which includes the above-mentioned radio frequency circuit.
  • the embodiment method can be implemented by means of software plus a necessary general hardware platform, or by hardware, but in many cases the former is a better implementation method.
  • the technical solution of the present application, or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, disk, CD), and includes several instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本申请公开了一种射频电路和电子设备，属于通信技术领域。射频电路中包括四个天线模块，所述四个天线模块用于并行接收B7频段的信号和n66频段的信号，其中：所述射频电路的第一天线模块中包括第一接收模块、第二接收模块和第一天线；在n66频段带间载波聚合CA以及B7频段和n66频段双连接ENDC的场景下，所述第一天线与所述第一接收模块连接，所述第一天线模块用于并行接收B7频段的信号和n66频段中第一频段的信号；在n66频段带内CA的场景下，所述第一天线与所述第二接收模块连接，所述第一天线模块用于接收n66频段的信号。

Description

射频电路和电子设备
交叉引用
本申请要求在2022年09月26日提交中国专利局、申请号为202211172828.6、名称为“射频电路和电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于通信技术领域，具体涉及一种射频电路和电子设备。
背景技术
目前，通信技术已从2/3/4G发展到5G，5G具有高速率、低时延等特性，能够给终端用户带来更好的使用体验。5G的网络架构通常可以分为独立组网(Standalone，SA)和非独立组网(Non-Standalone，NSA)两种架构，在NSA架构下，要求长期演进(Long Term Evolution，LTE)和新空口(New Radio，NR)可以并行地进行信号收发。
在相关技术中，在并行接收LTE和NR的信号时，通常会在终端中设置相应的射频电路。然而，针对B7(Band7)和n66这两个频段的双连接(E-UTRAN New Radio Dual Connectivity，ENDC)组合，目前用于并行接收这两个频段的信号的射频电路复杂度较高，实现难度较大。
发明内容
本申请实施例的目的是提供一种射频电路和电子设备，能够解决目前终端中用于并行接收B7和n66这两个频段的信号的射频电路复杂度较高，实现难度较大的问题。
第一方面，本申请实施例提供了一种射频电路，该射频电路包括四个天线模块，所述四个天线模块用于并行接收B7频段的信号和n66频段的信号，其中：所述射频电路的第一天线模块中包括第一接收模块、第二接收模块和第一天线；在n66频段带间载波聚合CA以及B7频段和n66频段双连接ENDC的场景下，所述第一天线与所述第一接收模块连接，所述第一天线模块用于并行接收B7频段的信号和n66频段中第一频段的信号；在n66频段带内CA的场景下，所述第一天线与所述第二接收模块连接，所述第一天线模块用于接收n66频段的信号。
第二方面，本申请实施例提供了一种电子设备，该电子设备包括上述第一方面所述的射频电路。
在本申请实施例中，射频电路包括四个用于并行接收B7频段和n66频段信号的天线模块，针对其中的第一天线模块，可以根据n66频段信号的接收场景，灵活调用该第一天线模块中的接收模块进行信号接收。具体而言，在n66频段带间CA以及B7频段和n66频段ENDC的场景下，可以通过第一接收模块并行接收B7频段的信号和n66频段中第一频段的信号，在n66频段带内CA的场景下，可以通过第二接收模块接收n66频段的信号。这样，通过将n66频段分为窄带(即第一频段)和宽带(即全频段)，并分场景调用不同的接收模块进行信号接收，既不会增加电路复杂度，也不会增加天线个数，不仅可以节省外挂器件，降低电路成本，同时也减少了射频通路的插损，提升了射频性能，有效改善用户体验。
附图说明
图1为实现本申请实施例的一种射频电路的示意性结构图；
图2为实现本申请实施例的一种射频电路的示意性结构图；
图3为实现本申请实施例的一种第一天线模块的示意性结构图；
图4为实现本申请实施例的一种第一天线模块射频信号流向的示意图；
图5为实现本申请实施例的一种第一天线模块射频信号流向的示意图；
图6为实现本申请实施例的一种射频电路的示意性结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
在相关技术中，在并行接收B7频段和n66频段的信号时，考虑到终端中缺少相应的宽带合路器件，因此，通常会在现有的射频电路(包括4根天线)中增加天线或增加双工器和合路器的方式来实现B7频段和n66频段的信号并行接收。其中，针对增加天线的方式，具体而言，是将现有射频架构的某个天线模块中用于接收n66频段信号的器件单独拆分出来，然后将新增的天线与该拆分出的n66器件连接，这样，可以通过5支天线实现B7频段和n66频段的信号并行接收。针对增加双工器和合路器的方式，具体而言，是在现有射频架构的某个天线模块的基础上增加B7双工器和合路器，合路器用于将B7双工器和该天线模块中的n66双工器进行合路，这样，可以通过4支天线实现B7频段和n66频段的信号并行接收。
然而，在实际应用中，上述第一种方案需要5支天线实才可以现B7频段和n66频段的信号并行接收，因此实现难度较大，而上述第二种方案由于需要额外增加双工器和合路器，因此不仅成本较高，而且还会增加布局面积 和射频路径损耗。
由此可见，目前的射频电路在并行接收B7频段和n66频段的信号时，复杂度较高，实现难度较大。
有鉴于此，本申请实施例提供一种射频电路和电子设备，通过将n66频段分为窄带(即n66频段中的第一频段，2110MHz-2180MHz)和宽带(即n66的全频段，2110MHz-2200MHZ)，并分场景调用不同的接收模块进行信号接收，既不会增加电路复杂度，也不会增加天线个数，不仅可以节省外挂器件，降低电路成本，同时也减少了射频通路的插损，提升了射频性能，有效改善用户体验。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的射频电路和电子设备进行详细地说明。
图1为实现本申请实施例的一种射频电路的示意性结构图。
如图1所示，本申请实施例提供的射频电路10中包括四个天线模块，分别为第一天线模块11、第二天线模块12、第三天线模块和13和第四天线模块14，这四个天线模块可以用于并行接收B7频段的信号和n66频段的信号。其中，B7频段和n66频段均为下行频段，B7频段具体是2620MHz-2690MHz，n66频段具体是2110MHz-2200MHz。
图1所示的第一天线模块11中包括第一接收模块111、第二接收模块112和第一天线113，第一天线113可以根据应用场景选择与第一接收模块111或与第二接收模块112连接。具体地，可以将n66频段分为窄带(即第一频段，n66频段中的部分频段)和宽带(即n66的全频段)，在n66频段带间载波聚合(Carrier Aggregation，CA)以及B7频段和n66频段双连接(E-UTRAN New Radio Dual Connectivity，ENDC)的场景下，第一天线113与第一接收模块111连接(第二接收模块112可处于悬空状态)，此时的第一天线模块11可用于并行接收B7频段的信号和n66频段中第一频段的信号。在n66频段带内CA的场景下，第一天线113与第二接收模块112连接(第一接收模块111可处于悬空状态)，此时的第一天线模块11可用于接收n66频段的信号。
这样，通过将n66频段分为窄带(即第一频段)和宽带(即全频段)，并分场景调用不同的接收模块进行信号接收，既不会增加电路复杂度，也不会增加天线个数，不仅可以节省外挂器件，降低电路成本，同时也减少了射频通路的插损，提升了射频性能，有效改善用户体验。
可选地，作为一个实施例，图1所示的第一接收模块111中具体可以包括B1接收单元和B7接收单元(图1并未示出)。B1接收单元可用于接收n66频段中的第一频段的信号，B7接收单元可用于接收B7频段的信号。也就是说，在第一天线113与第一接收模块111连接的情况下，第一接收模块111可以通过内部的B1接收单元实现对n66频段中第一频段信号的接收，以及通过内部的B7接收单元实现对B7频段信号的接收，从而实现对B7频段信号和n66频段中第一频段信号的并行接收。
可选地，作为一个实施例，上述n66频段中的第一频段具体可以是2110MHz-2180MHz，该第一频段与B1频段(下行频段，2110MHz-2170MHz)基本重合。这样，在n66频段带间CA以及B7频段和n66频段ENDC的场景下，由于可以通过射频电路中用于接收B1频段信号的B1接收单元实现对n66频段中的2110MHz-2180MHz这一频段信号的接收，即n66频段中的2110MHz-2180MHz这一频段的信号接收和B1频段的信号接收共用B1频段的通路(即B1接收单元)，因此可以无需增加额外的器件，从而降低电路成本和电路复杂度。
可选地，作为一个实施例，图1所示的第二接收模块112中具体可以包括n66接收单元(图1并未示出)。n66接收单元可用于接收n66频段的信号。也就是说，在第一天线113与第二接收模块112连接的情况下，第二接收模块112可以通过内部的n66接收单元实现对n66频段信号的接收，也即在n66频段带内CA的场景下，第一天线模块11在接收n66频段信号时，不通过第一接收模块111接收，而是通过第一接收模块111外部的第二接收模块112中的n66接收单元接收。
需要说明的是，第三代合作伙伴计划(3rd Generation Partnership Project， 3GPP)要求在n66频段带内CA的场景下，信号接收需要覆盖n66的全频段(2110MHz-2200MHz)，在n66带间CA的场景下，信号接收可以不需要覆盖n66的全频段，因此，本申请实施例在n66带间CA的场景下，由第一接收模块实现窄带(即第一频段)信号的接收，在n66带内CA的场景下，由第二接收模块实现宽带(即n66的全频段)信号的接收，能够满足3GPP的要求。
可选地，作为一个实施例，图1所示的第一天线模块11中还可以包括开关单元(图1并未示出)。开关单元可以包括两个连接端口，一个连接端口与第一天线113连接，另一个连接端口可以与第一接收模块111或第二接收模块112连接。可选地，该开关单元可以单刀双掷开关。
可选地，作为一个实施例，射频电路还可以包括收发模块，射频电路中的第一天线模块、第二天线模块、第三天线模块和第四天线模块可以通过并联的方式与该收发模块连接，如图2所示。图2中，射频电路中的第一天线模块11、第二天线模块12、第三天线模块13和第四天线模块14可以通过并联的方式与收发模块15连接，收发模块15与这四个天线模块共同实现对B7频段的信号和n66频段的并行收发。
为了便于理解本申请实施例提供的第一天线模块，在一种更为具体的实现方式中，第一天线模块可以如图3所示。
图3为实现本申请实施例的一种第一天线模块的示意性结构图。如图3所示，第一天线模块11中包括B1接收单元21、B7接收单元22、n66接收单元23、开关单元24和第一天线113。此外，第一天线模块11中还包括功率放大器(Power amplifier，PA)261、262、263和低噪声放大器(Low Noise Amplifier，LNA)271、272、273。B1接收单元21通过PA261和LNA271与收发模块15连接，B7接收单元22通过PA262和LNA272与收发模块15连接，n66接收单元23通过PA263和LNA273与收发模块15连接。
图3所示的第一天线模块11，在n66频段带间CA以及B7频段和n66频段ENDC的场景下，开关单元24的一端与第一天线113连接，另一端与 B1接收单元21和B7接收单元22连接，用于并行接收B7频段的信号和n66频段中第一频段的信号，具体的射频信号的流向可以参见图4。
图4中，在并行接收B7频段的信号和n66频段中第一频段的信号时，B7频段的信号可以依次通过第一天线113、开关单元24、B7接收单元22和LNA272进入收发模块15，n66频段中第一频段的信号可以依次通过第一天线111、开关单元24、B1接收单元21和LNA271进入收发模块15。相应的，在并行发送B7频段的信号和n66频段中第一频段的信号时，B7频段的信号可以依次通过收发模块15、PA262、B7接收单元22、开关单元24和第一天线113进行发送，n66频段中第一频段的信号可以依次通过收发模块15、PA261、B1接收单元21、开关单元24和第一天线113进行发送。
在n66频段带内CA的场景下，开关单元24的一端与第一天线113连接，另一端与n66接收单元23连接，用于接收n66频段的信号，具体的射频信号的流向可以参见图5。
图5中，在接收n66频段的信号时，n66频段的信号可以依次通过第一天线113、开关单元24、n66接收单元23和LNA273进入收发模块15。相应的，在发送n66频段的信号时，n66频段的信号可以依次通过收发模块15、PA263、n66接收单元23、开关单元24和第一天线113进行发送。
需要说明的是，在实际应用中，考虑到不同终端设备中的射频电路在出厂设置时的参数可能不同，因此，在使用射频电路进行信号接收之前，还可以射频电路接收路径的参数进行校准，比如，对图4和图5所示的射频信号流向所对应的路径参数进行校准，这样，当通过相应的路径进行信号接收时，可以基于校准后的参数进行信号接收。
本申请实施例中，射频电路中包含的第一天线模块、第二天线模块、第三天线模块和第四天线模块可以共同实现B7频段信号以及n66频段信号的并行收发。其中，第二天线模块、第三天线模块和第四天线模块中也可以包括相应的接收单元和天线，具体可以参见图6。
图6为实现本申请实施例的一种射频电路的示意性结构图。图6所示的 射频电路中包括第一天线模块11、第二天线模块12、第三天线模块13、第四天线模块14、收发模块15、PA261至PA264和LNA271至LNA277。其中，第一天线模块11中包括B1接收单元21、B7接收单元22、n66接收单元23、开关单元24和第一天线113，具体可以参见图1和图3所示的第一天线模块11，这里不再详细说明。第二天线模块12中包括B7接收单元121、n66接收单元122和第二天线123，第二天线模块12用于并行接收B7频段的信号和n66频段的信号。第三天线模块13中包括n66接收单元131和第三天线132，第三天线模块13用于接收n66频段的信号。第四天线模块14中包括n66接收单元141和第四天线142，第四天线模块14用于接收n66频段的信号。第一天线模块11、第二天线模块12、第三天线模块13和第四天线模块14通过并联的方式与收发模块15连接。
基于图6所示的射频电路，在并行接收B7频段的信号和n66频段的信号时，可以通过2根天线实现对B7频段信号的接收，通过4根天线实现对n66频段信号的接收。
可选地，在一种更为具体的应用场景中，射频电路中的四个天线模块并行接收B7频段的信号和n66频段的信号，具体可以是：第一天线模块用于B7频段的主接收(Primary Receiver，PRX)以及n66频段的PRX多输入多输出(Multiple Input Multiple Output，MIMO)全频段接收；第二天线模块用于n66频段的全频段接收以及B7频段的分集接收(Diversity Receive，DRX)；第三天线模块用于n66频段的全频段PRX；第四天线模块用于n66频段的DRX MIMO全频段接收。由此可以实现B7频段2*2天线和n66频段的4*4天线的MIMO并行接收。
可选地，作为一个实施例，考虑到n66频段和B66频段相同，B7频段和n7频段相同，因此，本申请实施例提供的射频电路还可以用于并行接收B66频段的信号和n7频段的信号，即在不改变射频电路结构的基础上，将用于接收n66频段信号的模块/单元用于接收B66频段的信号，将用于接收B7频段信号的模块/单元用于接收n7频段的信号。具体地，可以基于对n66频段的 窄带和宽带的划分，将B66频段也划分为窄带(即上述第一频段)和宽带(即B66的全频段)，在进行信号接收时，针对射频电路中的第一天线模块而言，在B66频段带间CA以及B66频段和n7频段ENDC的场景下，第一天线模块中的第一天线与第一接收模块连接，第一天线模块可用于并行接收B66频段中第一频段的信号以及n7频段的信号。在B66频段带内CA的场景下，第一天线模块中的第一天线与第二接收模块连接，第一天线模块可用于接收B66频段的信号。这样，通过将B66频段分为窄带(即第一频段)和宽带(即全频段)，并分场景调用不同的接收模块进行信号接收，可以实现对B66频段的信号和n7频段的信号的并行接收，既不会增加电路复杂度，也不会增加天线个数，不仅可以节省外挂器件，降低电路成本，同时也减少了射频通路的插损，提升了射频性能，有效改善用户体验。
在射频电路用于并行接收B66频段的信号和n7频段的信号的情况下：
可选地，第一接收模块中包括的B1接收单元可用于接收B66中的第一频段的信号，第一接收模块中包括的B7接收单元可用于接收n7频段的信号。第一频段为B1频段，即2110MHz-2180MHz。
可选地，第二接收模块中包括的n66接收单元可用于接收B66频段的信号。
可选地，射频电路中的第二天线模块中包括B7接收单元、n66接收单元和第二天线可用于并行接收n7频段的信号和B66频段的信号；第三天线模块中包括的n66接收单元和第三天线可用于接收B66频段的信号；第四天线模块中包括的n66接收单元和第四天线可用于接收B66频段的信号。
可选地，第一天线模块可用于n7频段的PRX以及B66频段的PRX MIMO全频段接收；第二天线模块用于B66频段的全频段接收以及n7频段的DRX；第三天线模块用于B66频段的全频段PRX；第四天线模块用于B66频段的DRX MIMO全频段接收。
可选地，射频电路还包括收发模块，射频电路中的四个天线模块可以通过并联的方式与该收发模块连接，该四个天线模块和该收发模块可以共同实 现对B66频段的信号和n7频段的信号的并行收发。
射频电路用于并行接收B66频段的信号和n7频段的信号的具体实现方式可以参见射频电路用于并行接收n66频段的信号和B7频段的信号的具体实现方式，这里不再详细说明。
本申请实施例提供的射频电路中包括四个用于并行接收B7/n7频段和n66/B66频段信号的天线模块，针对其中的第一天线模块，可以根据n66/B66频段信号的接收场景，灵活调用该第一天线模块中的接收模块进行信号接收。具体而言，在n66频段带间CA以及B7频段和n66频段ENDC的场景下，可以通过第一接收模块并行接收B7/n7频段的信号和n66/B66频段中第一频段的信号，在n66/B66频段带内CA的场景下，可以通过第二接收模块接收n66/B66频段的信号。这样，通过将n66/B66频段分为窄带(即第一频段)和宽带(即全频段)，并分场景调用不同的接收模块进行信号接收，既不会增加电路复杂度，也不会增加天线个数，不仅可以节省外挂器件，降低电路成本，同时也减少了射频通路的插损，提升了射频性能，有效改善用户体验。
本申请实施例还提供一种电子设备，该电子设备中包括上述射频电路。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述 实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (10)

  1. 一种射频电路，所述射频电路包括四个天线模块，所述四个天线模块用于并行接收B7频段的信号和n66频段的信号，其中：
    所述射频电路的第一天线模块中包括第一接收模块、第二接收模块和第一天线；
    在n66频段带间载波聚合CA以及B7频段和n66频段双连接ENDC的场景下，所述第一天线与所述第一接收模块连接，所述第一天线模块用于并行接收B7频段的信号和n66频段中第一频段的信号；
    在n66频段带内CA的场景下，所述第一天线与所述第二接收模块连接，所述第一天线模块用于接收n66频段的信号。
  2. 根据权利要求1所述的射频电路，其中，所述第一接收模块中包括B1接收单元和B7接收单元；
    其中，所述B1接收单元用于接收所述第一频段的信号，所述B7接收单元用于接收B7频段的信号。
  3. 根据权利要求1所述的射频电路，其中，所述第一频段为2110MHz-2180MHz。
  4. 根据权利要求1所述的射频电路，其中，所述第二接收模块中包括n66接收单元，所述n66接收单元用于接收n66频段的信号。
  5. 根据权利要求1所述的射频电路，其中，所述第一天线模块中还包括开关单元；
    其中，所述开关单元的一端与所述第一天线连接，所述开关单元的另一端与所述第一接收模块或所述第二接收模块连接。
  6. 根据权利要求1所述的射频电路，其中，
    所述射频电路的第二天线模块中包括B7接收单元、n66接收单元和第二天线，所述第二天线模块用于并行接收B7频段的信号和n66频段的信号；
    所述射频电路的第三天线模块中包括n66接收单元和第三天线，所述第 三天线模块用于接收n66频段的信号；
    所述射频电路的第四天线模块中包括n66接收单元和第四天线，所述第四天线模块用于接收n66频段的信号。
  7. 根据权利要求6所述的射频电路，其中，
    所述第一天线模块用于B7频段的主接收PRX以及n66频段的PRX多输入多输出MIMO全频段接收；
    所述第二天线模块用于n66频段的全频段接收以及B7频段的分集接收DRX；
    所述第三天线模块用于n66频段的全频段PRX；
    所述第四天线模块用于n66频段的DRX MIMO全频段接收。
  8. 根据权利要求1所述的射频电路，其中，所述射频电路还用于并行接收B66频段的信号和n7频段的信号；
    其中，在B66频段带间CA以及B66频段和n7频段ENDC的场景下，所述第一天线与所述第一接收模块连接，所述第一天线模块用于并行接收B66频段中第一频段的信号以及n7频段的信号；
    在B66频段带内CA的场景下，所述第一天线与所述第二接收模块连接，所述第一天线模块用于接收B66频段的信号。
  9. 根据权利要求1所述的射频电路，其中，所述射频电路还包括收发模块；
    其中，所述四个天线模块通过并联的方式与所述收发模块连接，所述四个天线模块和所述收发模块用于并行收发B7频段的信号和n66频段的信号，或并行收发B66频段的信号和n7频段的信号。
  10. 一种电子设备，包括如权利要求1至9任一项所述的射频电路。
PCT/CN2023/120775 2022-09-26 2023-09-22 射频电路和电子设备 WO2024067406A1 (zh)

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