WO2020220892A1 - 射频电路及移动终端 - Google Patents

射频电路及移动终端 Download PDF

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Publication number
WO2020220892A1
WO2020220892A1 PCT/CN2020/081841 CN2020081841W WO2020220892A1 WO 2020220892 A1 WO2020220892 A1 WO 2020220892A1 CN 2020081841 W CN2020081841 W CN 2020081841W WO 2020220892 A1 WO2020220892 A1 WO 2020220892A1
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Prior art keywords
radio frequency
switch unit
sensitivity
module
unit
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PCT/CN2020/081841
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English (en)
French (fr)
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韦仁杰
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维沃移动通信有限公司
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Publication of WO2020220892A1 publication Critical patent/WO2020220892A1/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
    • H04B1/005—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
    • H04B1/0057—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 diplexing or multiplexing filters 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
    • H04B1/38—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
    • H04B1/401—Circuits for selecting or indicating operating mode

Definitions

  • the present disclosure belongs to the field of communication technology, and particularly relates to a radio frequency circuit and a mobile terminal.
  • LNA low noise amplifier
  • the radio frequency circuit in the related technology also has the following defects: because the radio frequency circuit only has a low-noise amplifier in the receiving path of the B41 band signal, the receiving performance of the radio frequency circuit is not optimal in some network scenarios and cannot meet the user's downlink data. Experience.
  • the radio frequency circuit when the mobile phone is in a single-carrier network and the radio frequency circuit only receives B39 frequency band signals, or when the mobile phone is in an inter-band carrier aggregation network, the radio frequency circuit receives carrier aggregation signals of B39 frequency band signals and B41 frequency band signals, and B39 frequency band signals are received
  • the performance is poor, because only the receiving path of the B41 band signal in the radio frequency circuit has a low-noise amplifier, the radio frequency circuit cannot improve the receiving sensitivity of the B39 band signal, resulting in poor reception performance of the radio frequency circuit and poor downlink data experience for users.
  • the purpose of the embodiments of the present disclosure is to provide a radio frequency circuit and a mobile terminal to solve the problem that the radio frequency circuit in the related art has poor reception performance in some network scenarios and cannot satisfy the user's downlink data experience.
  • the embodiments of the present disclosure disclose a radio frequency circuit, which is applied to a mobile terminal.
  • the radio frequency circuit includes a radio frequency transceiver module, at least two radio frequency receiving modules, a control module, and a radio frequency receiving processing module.
  • the receiving module receives signals of different frequency bands.
  • the radio frequency receiving and processing module includes: a low-noise amplifying and processing unit; a switch unit.
  • the switch unit includes at least two input terminals and at least two output terminals.
  • the at least two input terminals of the switch unit are connected to at least two The output ends of two radio frequency receiving modules are connected, the first output end of the switch unit is connected to the input end of the low-noise amplifying processing unit, the other output ends of the switch unit are respectively connected to the radio frequency transceiver module; the control module is connected to the control end of the switch unit, The control module is used for controlling the connection between one input end of the switch unit and the first output end according to the network type where the mobile terminal is located.
  • the radio frequency circuit of the embodiment of the present disclosure includes the following advantages: in the case that the radio frequency circuit includes at least two radio frequency receiving modules and there is only one low-noise amplifying processing unit in the radio frequency circuit, there is only one radio frequency corresponding to one of the at least two frequency band signals.
  • the receiving module can be connected with the low-noise amplification processing unit.
  • the embodiment of the present disclosure adds a switch unit and a control module to the radio frequency circuit, and the control module controls one input terminal of the switch unit to be connected to the first output terminal according to the network type of the mobile terminal.
  • the frequency band signal corresponding to the radio frequency receiving module at the end is output after the low-noise amplifying processing unit improves the receiving sensitivity, so that the radio frequency circuit can reach the optimal reception performance in any network, effectively improving the downlink network data experience of mobile terminal users.
  • the embodiments of the present disclosure also disclose a mobile terminal including the above-mentioned radio frequency circuit.
  • the mobile terminal of the embodiment of the present disclosure includes the following advantages: when the radio frequency circuit includes at least two radio frequency receiving modules and there is only one low-noise amplifying processing unit in the radio frequency circuit, there is only one radio frequency corresponding to one frequency band signal among the at least two frequency band signals.
  • the receiving module can be connected with the low-noise amplification processing unit.
  • the embodiment of the present disclosure adds a switch unit and a control module to the radio frequency circuit, and the control module controls one input terminal of the switch unit to be connected to the first output terminal according to the network type of the mobile terminal.
  • the frequency band signal corresponding to the radio frequency receiving module at the end is output after the low-noise amplifying processing unit improves the receiving sensitivity, so that the radio frequency circuit can reach the optimal reception performance in any network, effectively improving the downlink network data experience of mobile terminal users.
  • FIG. 1 is a structural block diagram of an embodiment of a radio frequency circuit provided by the present disclosure
  • FIG. 2 is a structural block diagram of a specific embodiment of a radio frequency circuit provided by the present disclosure
  • FIG. 3 is a schematic structural diagram of another specific embodiment of a radio frequency circuit provided by the present disclosure.
  • Fig. 4 is a structural block diagram of a control module in a specific embodiment of a radio frequency circuit provided by the present disclosure.
  • FIG. 1 is a structural block diagram of an embodiment of a radio frequency circuit of the present disclosure, and the radio frequency circuit is applied to a mobile terminal.
  • the radio frequency circuit may include a radio frequency transceiver module 1, at least two radio frequency receiving modules (for example, a first radio frequency receiving module 21,..., an Nth radio frequency receiving module 2N, where N is an integer greater than or equal to 1), a control module 3 and RF receiving and processing module 4.
  • At least two RF receiving modules respectively receive signals of different frequency bands such as B3 frequency band signals, B7 frequency band signals, B39 frequency band signals, B40 frequency band signals or B41 frequency band signals, etc.
  • the RF receiving and processing module 4 includes: low noise Amplification processing unit 41; switch unit 42, switch unit 42 includes at least two input terminals and at least two output terminals, at least two input terminals of switch unit 42 are respectively connected to the output terminals of at least two radio frequency receiving modules, switch unit 42
  • the first output terminal of the switch unit 42 is connected to the input terminal of the low-noise amplification processing unit 41, and the other output terminals of the switch unit 42 are connected to the radio frequency transceiver module 1 respectively.
  • the control module 3 is connected to the control end of the switch unit 42, and the control module 3 is used to control one input end of the switch unit 42 to be connected to the first output end according to the network type of the mobile terminal, so as to optimize the receiving performance of the radio frequency circuit .
  • the low noise amplification processing unit 41 can improve the receiving sensitivity of the radio frequency receiving module corresponding to the frequency band signal.
  • the radio frequency circuit includes at least two radio frequency receiving modules and there is only one low noise amplification processing unit 41 in the radio frequency circuit
  • the radio frequency receiving module corresponding to only one frequency band signal in the at least two frequency band signals can be combined with the low noise amplification processing unit. 41 Connected.
  • the control module 3 can be used to control one input terminal of the switch unit 42 to connect to the first output terminal according to the network type of the mobile terminal.
  • the switch unit 42 One of the input ends corresponds to the frequency band signal of the RF receiving module through the low-noise amplifying processing unit 41 to improve the receiving sensitivity and then output, so that the RF circuit can reach the optimal receiving performance in any network, effectively improving the downlink network data of mobile terminal users Experience.
  • the low noise amplification processing unit 41 may be a low noise amplifier in the related art.
  • the switch unit 42 may be integrated in the low-noise amplification processing unit 41, so as to reduce the space occupied by the mobile terminal by the switch unit 42.
  • the low noise amplification processing unit 41 includes a low noise amplifier and a switch unit 42.
  • Fig. 2 is a structural block diagram of a specific embodiment of a radio frequency circuit provided by the present disclosure.
  • Fig. 3 is a schematic structural diagram of another specific embodiment of a radio frequency circuit provided by the present disclosure.
  • the switch unit 42 includes two input terminals and two output terminals.
  • the switch unit 42 may be a double-pole double-throw switch.
  • the switch unit 42 includes three input terminals and three output terminals. In this case, the switch unit 42 may be a three-pole, three-throw switch.
  • the network type of the mobile terminal is a single carrier network
  • the control module 3 is used to control the output end of the radio frequency receiving module corresponding to the single carrier frequency band in the switch unit 42 to be connected to the first output end.
  • the control module 3 controls the switch unit 42 to connect the output terminal of the radio frequency receiving module corresponding to the single carrier frequency band to the first output terminal, the control module 3 can also control the other input terminals of the switch unit 42 to disconnect from other output terminals. .
  • the embodiments of the present disclosure can improve the receiving sensitivity of the radio frequency circuit for signals in this frequency band, that is, the radio frequency circuit can achieve the optimal receiving performance.
  • the control module 3 controls the switch unit 42 to connect the output end of the radio frequency receiving module corresponding to the B39 frequency band to the first output end, so as to improve the B39 frequency band signal received by the radio frequency receiving module
  • the control module 3 controls the switch unit 42 to connect the output end of the radio frequency receiving module corresponding to the B41 frequency band to the first output end, so as to improve the B41 received by the radio frequency receiving module Receiving sensitivity of frequency band signals.
  • the network type where the mobile terminal is located is an inter-band carrier aggregation network
  • the control module 3 is used to control an input terminal in the switch unit 42 to connect to the first output terminal
  • the control module 3 also uses
  • the other input terminals in the control switch unit 42 are respectively connected with other output terminals to improve the receiving sensitivity of one input terminal (connected to the first output terminal) of the switch unit 42 corresponding to the frequency band signal received by the radio frequency receiving module, so that the radio frequency The sensitivity of all frequency band signals received by the circuit is superimposed, even if the radio frequency circuit achieves the optimal receiving performance.
  • the inter-band carrier aggregation network may be an inter-band dual-carrier aggregation network or an inter-band multi-carrier aggregation network.
  • Fig. 4 is a structural block diagram of a control module in a specific embodiment of a radio frequency circuit provided by the present disclosure.
  • the control module 3 may include a control submodule 31, and the control submodule 31 may include: The switch switching unit 311, in a state where the first input terminal of the switch unit 42 is connected to the first output terminal, after a first preset time, the switch switching unit 311 is used to switch the second input terminal of the switch unit 42 To be connected to the first output terminal; in the state where the second input terminal of the switch unit 42 is connected to the first output terminal, after the first preset time, the switch switching unit 311 is also used to connect the second input terminal of the switch unit 42 One input terminal is switched to be connected to the first output terminal; the first input terminal and the second input terminal are respectively connected to the output terminals of the two radio frequency receiving modules corresponding to the dual carrier frequency band; the first sensitivity acquiring unit 312, the first sensitivity acquiring unit 312 Used to obtain the first sensitivity, where the first sensitivity a
  • the network type where the mobile terminal is located is an inter-band dual-carrier aggregation network
  • the control module 3 may further include: an initiating submodule 32 for every other At the second preset time, the control sub-module 31 is activated.
  • the sensitivity of the two frequency band signals output by the radio frequency receiving and processing module 4 can be kept as large as possible after the sensitivity is superimposed, so as to meet the user's downlink network data experience.
  • the internal structure of the control module 3 can be adjusted according to the number of frequency band signals in the multi-carrier aggregation network.
  • the control module 3 enables the radio frequency to receive multiple frequency bands output by the processing module 4
  • the process of superimposing the sensitivity of the signal to maximize the sensitivity is similar to the process of superimposing the sensitivity of the two frequency band signals output by the radio frequency receiving and processing module 4 by the control module 3 to maximize the sensitivity, which will not be repeated here.
  • the size of the first preset time and the second preset time may be set according to a large amount of test data to ensure that the user's downlink network data experience prevails.
  • the first preset time may be set to 3ms or 5ms, and the second preset time may be set to 10ms.
  • the inter-band dual carrier aggregation network can be an inter-band dual carrier aggregation network of B39 frequency band signals and B41 frequency band signals, or the inter-band dual carrier aggregation network can also be an inter-band dual carrier of B3 frequency band signals and B7 frequency band signals Converged network, etc.
  • the switch unit 42 is a double-pole double-throw switch, and the network type of the mobile terminal is an inter-band dual carrier aggregation network of B39 frequency band signals and B41 frequency band signals
  • the radio frequency receiving module corresponding to the B41 frequency band signal is the first radio frequency receiving module 21, and the radio frequency receiving module corresponding to the B39 frequency band signal is the second radio frequency receiving module 22.
  • the switch unit 42 is integrated in the low-noise amplifying processing unit 41.
  • the two input terminals of the radio frequency receiving and processing module 4 that is, the two input terminals of the double-pole double-throw switch are Port1_IN and Port2_IN, double-pole double-throw
  • the two output terminals of the switch are 1_OUT and 2_OUT.
  • the two output terminals of the radio frequency receiving processing module 4 are Port1_OUT and Port2_OUT.
  • Port1_IN is connected to the first radio frequency receiving module 21, and Port2_IN is connected to the second radio frequency receiving module 22.
  • the receiving sensitivity of the low noise amplifier to the B39 frequency band signal can be increased by 2.5db
  • the receiving sensitivity of the low noise amplifier to the B41 frequency band signal can be increased by 1db.
  • B41_RX is the received signal in the B41 frequency band
  • B39_RX is the received signal in the B39 frequency band.
  • the receiving sensitivity of the B41 frequency band signal is -94db.
  • the receiving sensitivity of the B39 frequency band signal is The sensitivity is -90db.
  • the receiving sensitivity of the B41 band signal after passing through the low noise amplifier is -95db
  • the first sensitivity acquired by the first sensitivity acquiring unit 312 is -96.19db
  • the first sensitivity is the sensitivity of the B41 frequency band signal output by the radio frequency receiving processing module 4 and the sensitivity of the B39 frequency band signal superimposed.
  • the switch switching unit 311 switches Port2_IN in the switch unit 42 to the connection output terminal 1_OUT, and Port1_IN switches to the connection output terminal 2_OUT, that is, the first radio frequency receiving module 21 is not connected to the low noise amplifier, and the second radio frequency receiving module 22 is connected to the low noise amplifier
  • the receiving sensitivity of the B39 band signal after passing through the low noise amplifier is -92.5db
  • the second sensitivity obtained by the second sensitivity acquisition unit 313 is -96.32db
  • the second sensitivity is the sensitivity of the B41 band signal output by the radio frequency receiving processing module 4 and B39 The sensitivity of the frequency band signal after superposition.
  • the first sensitivity is smaller than the second sensitivity, that is, when the first radio frequency receiving module 21 is not connected to the low noise amplifier and the second radio frequency receiving module 22 is connected to the low noise amplifier, the sensitivity of the B39 frequency band signal and the sensitivity of the B41 frequency band signal are superimposed
  • the control unit 314 controls the switch switch unit 311 to switch Port2_IN in the switch unit 42 to the connection output terminal 1_OUT, and Port1_IN to the connection output terminal 2_OUT, so that the radio frequency receives the two frequency band signals output by the processing module 4 (ie The sensitivity of the B39 frequency band signal and the B41 frequency band signal) is superimposed, and the sensitivity is the largest, even if the radio frequency circuit achieves the optimal receiving performance.
  • the receiving sensitivity of the B41 frequency band signal is -94db
  • the receiving sensitivity of the B39 frequency band signal is The sensitivity is -88db.
  • the receiving sensitivity of the B41 band signal after passing through the low noise amplifier is -95db
  • the first sensitivity acquired by the first sensitivity acquiring unit 312 is -95.79db.
  • the switch switching unit 311 switches Port2_IN in the switch unit 42 to the connection output terminal 1_OUT, and Port1_IN switches to the connection output terminal 2_OUT, that is, the first radio frequency receiving module 21 is not connected to the low noise amplifier, and the second radio frequency receiving module 22 is connected to the low noise amplifier
  • the receiving sensitivity is -90.5db
  • the second sensitivity acquired by the second sensitivity acquiring unit 313 is -95.6db.
  • the first sensitivity is greater than the second sensitivity, that is, when the first radio frequency receiving module 21 is connected to the low noise amplifier and the second radio frequency receiving module 22 is not connected to the low noise amplifier, the sensitivity of the B39 frequency band signal and the sensitivity of the B41 frequency band signal are superimposed
  • the control unit 314 controls the switch switch unit 311 to switch Port1_IN in the switch unit 42 to the connection output terminal 1_OUT, and Port2_IN to the connection output terminal 2_OUT, so that the radio frequency receives the two frequency band signals output by the processing module 4 (ie The sensitivity of the B39 frequency band signal and the B41 frequency band signal) is superimposed, and the sensitivity is the largest, even if the radio frequency circuit achieves the optimal receiving performance.
  • the radio frequency circuit of the embodiment of the present disclosure includes the following advantages: in the case that the radio frequency circuit includes at least two radio frequency receiving modules and there is only one low-noise amplifying processing unit in the radio frequency circuit, there is only one radio frequency corresponding to one of the at least two frequency band signals.
  • the receiving module can be connected with the low-noise amplification processing unit.
  • the embodiment of the present disclosure adds a switch unit and a control module to the radio frequency circuit, and the control module controls the connection of one input end of the switch unit with the first output end according to the network type of the mobile terminal, so that the radio frequency circuit can receive in any network The performance can be optimized.
  • the control module controls the switch unit to connect the output terminal of the radio frequency receiving module corresponding to the single carrier frequency band to the first output terminal, and the control module also controls other input terminals in the switch unit to connect with the first output terminal.
  • the other output terminals are disconnected to improve the receiving sensitivity of the single carrier signal received by the radio frequency receiving module, so that the radio frequency circuit has the best reception performance in the single carrier network.
  • the control module controls one input terminal in the switch unit to connect with the first output terminal, and the control module also controls other input terminals in the switch unit to connect with other output terminals respectively, At this time, one of the input ends of the switch unit corresponds to the frequency band signal of the RF receiving module through the low-noise amplifying processing unit to increase the receiving sensitivity and then outputting.
  • the other frequency band signals of the at least two frequency band signals are directly output, so that the RF receiving processing module outputs at least two
  • the sensitivity of the signals in the two frequency bands is the highest after superposition, even if the radio frequency circuit has the best reception performance in the inter-band carrier aggregation network. In this way, the radio frequency circuit of the embodiment of the present disclosure can achieve optimal reception performance in any network, which effectively improves the downlink network data experience of mobile terminal users.
  • the embodiment of the present disclosure also discloses a mobile terminal including the above-mentioned radio frequency circuit.
  • the mobile terminal of the embodiment of the present disclosure may include: a mobile phone, a tablet computer, a personal digital assistant (PDA), a laptop portable computer, a vehicle-mounted computer, a wearable device, and the like.
  • PDA personal digital assistant
  • the mobile terminal of the embodiment of the present disclosure includes the following advantages: when the radio frequency circuit includes at least two radio frequency receiving modules and there is only one low-noise amplifying processing unit in the radio frequency circuit, there is only one radio frequency corresponding to one frequency band signal among the at least two frequency band signals.
  • the receiving module can be connected with the low-noise amplification processing unit.
  • the embodiment of the present disclosure adds a switch unit and a control module to the radio frequency circuit, and the control module controls the connection of one input end of the switch unit with the first output end according to the network type of the mobile terminal, so that the radio frequency circuit can receive in any network The performance can be optimized.
  • the control module controls the switch unit to connect the output terminal of the radio frequency receiving module corresponding to the single carrier frequency band to the first output terminal, and the control module also controls other input terminals in the switch unit to connect with the first output terminal.
  • the other output terminals are disconnected to improve the receiving sensitivity of the single carrier signal received by the radio frequency receiving module, so that the radio frequency circuit has the best reception performance in the single carrier network.
  • the control module controls one input terminal in the switch unit to connect with the first output terminal, and the control module also controls other input terminals in the switch unit to connect with other output terminals respectively, At this time, one of the input ends of the switch unit corresponds to the frequency band signal of the RF receiving module through the low-noise amplifying processing unit to increase the receiving sensitivity and then outputting.
  • the other frequency band signals of the at least two frequency band signals are directly output, so that the RF receiving processing module outputs at least two
  • the sensitivity of the signals in the two frequency bands is the highest after superposition, even if the radio frequency circuit has the best reception performance in the inter-band carrier aggregation network. In this way, the radio frequency circuit of the embodiment of the present disclosure can achieve optimal reception performance in any network, which effectively improves the downlink network data experience of mobile terminal users.
  • the description is relatively simple, and the relevant parts can refer to the part of the description of the radio frequency circuit embodiment.

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Abstract

本申请提供一种射频电路及移动终端，射频电路包括射频收发模块、分别接收不同频段信号的至少两个射频接收模块、控制模块和射频接收处理模块，射频接收处理模块包括：低噪声放大处理单元；开关单元，包括至少两个输入端和至少两个输出端，至少两个输入端分别与至少两个射频接收模块的输出端连接，第一输出端与低噪声放大处理单元的输入端连接，其它输出端分别与射频收发模块连接；控制模块与开关单元的控制端连接，控制模块用于根据移动终端所处的网络类型控制开关单元中的一个输入端与第一输出端连接。

Description

射频电路及移动终端
相关申请的交叉引用
本申请主张在2019年4月28日在中国提交的中国专利申请号201910350714.8的优先权，其全部内容通过引用包含于此。
技术领域
本公开属于通信技术领域，尤其涉及一种射频电路及移动终端。
背景技术
从2G手机到3G手机，一直采用单载波通信技术方案，如今的4G手机，开始采用双载波聚合的通信技术方案，其中，下行双载波聚合技术能够在很大程度上提升手机下行信号的性能，提高用户的下行数据业务体验。
目前，下行双载波聚合的频段组合方式比较多，例如B39频段和B41频段间下行载波聚合(Carrier Aggregation，CA)方式，B3频段和B7频段间下行载波聚合方式等。相关技术中的射频电路在接收B39频段和B41频段间下行载波聚合信号时，往往在B41频段信号接收通路增加低噪声放大器(Low Noise Amplifier，LNA)，以提高B41频段信号的接收灵敏度。
相关技术中的射频电路还存在以下缺陷：由于射频电路中只有B41频段信号的接收通路有一个低噪声放大器，导致在一些网络场景下，射频电路的接收性能并非最优，无法满足用户的下行数据体验。例如，当手机在单载波网络中，射频电路仅接收B39频段信号时，或当手机在带间载波聚合网络中，射频电路接收B39频段信号和B41频段信号的载波聚合信号，B39频段信号的接收性能很差时，由于射频电路中只有B41频段信号的接收通路有一个低噪声放大器，射频电路无法提高B39频段信号的接收灵敏度，使得射频电路的接收性能差，用户的下行数据体验也很差。
申请内容
鉴于上述问题，本公开实施例的目的在于提供一种射频电路和一种移动终端，以解决相关技术中的射频电路在一些网络场景下接收性能差，无法满足用户的下行数据体验的问题。
为了解决上述问题，一方面，本公开实施例公开了一种射频电路，应用于移动终端，射频电路包括射频收发模块、至少两个射频接收模块、控制模块和射频接收处理模块，至少两个射频接收模块分别接收不同频段信号，射频接收处理模块包括：低噪声放大处理单元；开关单元，开关单元包括至少两个输入端和至少两个输出端，开关单元的至少两个输入端分别与至少两个射频接收模块的输出端连接，开关单元的第一输出端与低噪声放大处理单元的输入端连接，开关单元的其它输出端分别与射频收发模块连接；控制模块与开关单元的控制端连接，控制模块用于根据移动终端所处的网络类型控制开关单元中的一个输入端与第一输出端连接。本公开实施例的射频电路包括以下优点：在射频电路包括至少两个射频接收模块，而射频电路中只有一个低噪声放大处理单元的情况下，至少两个频段信号中只有一个频段信号对应的射频接收模块能与低噪声放大处理单元连接。本公开实施例在射频电路中增加开关单元和控制模块，通过控制模块根据移动终端所处的网络类型控制开关单元中的一个输入端与第一输出端连接，此时，开关单元中的一个输入端对应射频接收模块的频段信号通过低噪声放大处理单元提高接收灵敏度后输出，以使射频电路在任意网络中接收性能均能达到最优，有效提升了移动终端用户的下行网络数据体验。
为了解决上述问题，另一方面，本公开实施例还公开了一种移动终端，包括上述的射频电路。
本公开实施例的移动终端包括以下优点：在射频电路包括至少两个射频接收模块，而射频电路中只有一个低噪声放大处理单元的情况下，至少两个频段信号中只有一个频段信号对应的射频接收模块能与低噪声放大处理单元连接。本公开实施例在射频电路中增加开关单元和控制模块，通过控制模块根据移动终端所处的网络类型控制开关单元中的一个输入端与第一输出端连接，此时，开关单元中的一个输入端对应射频接收模块的频段 信号通过低噪声放大处理单元提高接收灵敏度后输出，以使射频电路在任意网络中接收性能均能达到最优，有效提升了移动终端用户的下行网络数据体验。
附图说明
下面将通过参考附图来描述本公开示例性实施例的特征、优点和技术效果。
图1是本公开提供的一种射频电路实施例的结构框图；
图2是本公开提供的一种射频电路具体实施例的结构框图；
图3是本公开提供的另一种射频电路具体实施例的结构示意图；
图4是本公开提供的一种射频电路具体实施例中控制模块的结构框图。
具体实施方式
下面结合附图和实施例对本公开的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本公开的原理，但不能用来限制本公开的范围，即本公开不限于所描述的实施例。
图1是本公开的一种射频电路实施例的结构框图，该射频电路应用于移动终端。参照图1，射频电路可以包括射频收发模块1、至少两个射频接收模块(例如第一射频接收模块21、……、第N射频接收模块2N，N为大于或等于1的整数)、控制模块3和射频接收处理模块4，至少两个射频接收模块分别接收不同频段信号例如B3频段信号、B7频段信号、B39频段信号、B40频段信号或B41频段信号等，射频接收处理模块4包括：低噪声放大处理单元41；开关单元42，开关单元42包括至少两个输入端和至少两个输出端，开关单元42的至少两个输入端分别与至少两个射频接收模块的输出端连接，开关单元42的第一输出端与低噪声放大处理单元41的输入端连接，开关单元42的其它输出端分别与射频收发模块1连接。控制模块3与开关单元42的控制端连接，控制模块3用于根据移动终端所处的网络类型控制开关单元42中的一个输入端与第一输出端连接，以使射频电路的接收性能最优。其中，当低噪声放大处理单元41与射频接收模块的输 出端连接时，低噪声放大处理单元41可以提高该射频接收模块对应频段信号的接收灵敏度。
这样，在射频电路包括至少两个射频接收模块而射频电路中只有一个低噪声放大处理单元41的情况下，至少两个频段信号中只有一个频段信号对应的射频接收模块能与低噪声放大处理单元41连接。在射频电路中增加开关单元42和控制模块3后，可以通过控制模块3根据移动终端所处的网络类型控制开关单元42中的一个输入端与第一输出端连接，此时，开关单元42中的一个输入端对应射频接收模块的频段信号通过低噪声放大处理单元41提高接收灵敏度后输出，以使射频电路在任意网络中接收性能均能达到最优，有效提升了移动终端用户的下行网络数据体验。
可选地，在本公开的一个实施例中，低噪声放大处理单元41可以为相关技术中的低噪声放大器。
可选地，在本公开的另一个实施例中，开关单元42可以集成在低噪声放大处理单元41中，以便于减小开关单元42占用移动终端的空间。此时，低噪声放大处理单元41包括低噪声放大器和开关单元42。
图2是本公开提供的一种射频电路具体实施例的结构框图。图3是本公开提供的另一种射频电路具体实施例的结构示意图。
可选地，在本公开的一个具体实施例中，参照图2和图3，开关单元42包括两个输入端和两个输出端，此时，开关单元42可以为双刀双掷开关。可选地，在本公开的另一个具体实施例中，开关单元42包括三个输入端和三个输出端，此时，开关单元42可以为三刀三掷开关。
在本公开的一个实施例中，移动终端所处的网络类型为单载波网络，控制模块3用于控制开关单元42中与单载波频段对应射频接收模块的输出端与第一输出端连接，以提高射频接收模块接收的单载波信号的接收灵敏度，使射频电路达到最优的接收性能。其中，当控制模块3控制开关单元42中与单载波频段对应射频接收模块的输出端与第一输出端连接时，控制模块3还可以控制开关单元42中其它输入端与其它输出端断开连接。
因此，对于任意频段单载波网络，本公开实施例均能提高射频电路对于该频段信号的接收灵敏度，即射频电路均能达到最优的接收性能。例如， 当移动终端处于B39频段的单载波网络时，控制模块3控制开关单元42中与B39频段对应射频接收模块的输出端与第一输出端连接，以实现提高射频接收模块接收的B39频段信号的接收灵敏度；当移动终端处于B41频段的单载波网络时，控制模块3控制开关单元42中与B41频段对应射频接收模块的输出端与第一输出端连接，以实现提高射频接收模块接收的B41频段信号的接收灵敏度。
在本公开的另一个实施例中，移动终端所处的网络类型为带间载波聚合网络，控制模块3用于控制开关单元42中的一个输入端与第一输出端连接，控制模块3还用于控制开关单元42中的其它输入端分别与其它输出端连接，以实现提高开关单元42中的一个输入端(与第一输出端连接)对应射频接收模块接收的频段信号的接收灵敏度，使射频电路接收的所有频段信号叠加后的灵敏度，即使射频电路达到最优的接收性能。
其中，带间载波聚合网络可以为带间双载波聚合网络或带间多载波聚合网络。
图4是本公开提供的一种射频电路具体实施例中控制模块的结构框图。
可选地，在本公开的一个具体实施例中，参照图4，移动终端所处的网络类型为带间双载波聚合网络，控制模块3可以包括控制子模块31，控制子模块31可以包括：开关切换单元311，在开关单元42中的第一输入端与第一输出端连接的状态下，在第一预设时间后，开关切换单元311用于将开关单元42中的第二输入端切换至与第一输出端连接；在开关单元42中的第二输入端与第一输出端连接的状态下，在第一预设时间后，开关切换单元311还用于将开关单元42中的第一输入端切换至与第一输出端连接；第一输入端和第二输入端分别与双载波频段对应两个射频接收模块的输出端连接；第一灵敏度获取单元312，第一灵敏度获取单元312用于获取第一灵敏度，第一灵敏度为在开关单元42中的第一输入端与第一输出端连接的状态下，射频接收处理模块4输出的两个频段信号的灵敏度进行叠加后的灵敏度；第二灵敏度获取单元313，第二灵敏度获取单元313用于获取第二灵敏度，第二灵敏度为在开关单元42中的第二输入端与第一输出端连接的状态下，射频接收处理模块4输出的两个频段信号的灵敏度进行 叠加后的灵敏度；控制单元314，控制单元314用于对第一灵敏度和第二灵敏度进行比较，在第一灵敏度大于第二灵敏度的情况下，控制单元314还用于控制开关切换单元311将开关单元42中的第一输入端切换至与第一输出端连接，在第一灵敏度小于第二灵敏度的情况下，控制单元314还用于控制开关切换单元311将开关单元42中的第二输入端切换至与第一输出端连接。
可选地，在本公开的一个具体实施例中，继续参照图4，移动终端所处的网络类型为带间双载波聚合网络，控制模块3还可以包括：启动子模块32，用于每隔第二预设时间，启动控制子模块31。通过启动子模块32和控制子模块31可以实现使射频接收处理模块4输出的两个频段信号的灵敏度进行叠加后的灵敏度度尽可能保持最大，以满足用户的下行网络数据体验。
需要说明的是，当移动终端处于多载波聚合网络时，控制模块3的内部结构可以根据多载波聚合网络中频段信号的个数进行调整，控制模块3使射频接收处理模块4输出的多个频段信号的灵敏度进行叠加后的灵敏度最大的过程，与控制模块3使射频接收处理模块4输出的两个频段信号的灵敏度进行叠加后的灵敏度最大的过程类似，以下不再赘述。
可选地，在本公开的一个实施例中，第一预设时间和第二预设时间的大小可以根据大量测试数据进行设置，以确保用户的下行网络数据体验为准。在本公开的一个实施例中，第一预设时间可以设置为3ms或5ms，第二预设时间可以设置为10ms。
可选地，带间双载波聚合网络可以为B39频段信号和B41频段信号的带间双载波聚合网络，或者，带间双载波聚合网络也可以为B3频段信号和B7频段信号的带间双载波聚合网络等。
在本公开的一个具体实施例中，继续参照图2和图3，开关单元42为双刀双掷开关，移动终端所处的网络类型为B39频段信号和B41频段信号的带间双载波聚合网络，B41频段信号对应射频接收模块为第一射频接收模块21，B39频段信号对应射频接收模块为第二射频接收模块22。图2和图3中，开关单元42集成在低噪声放大处理单元41中，射频接收处理模 块4的两个输入端即双刀双掷开关的两个输入端为Port1_IN和Port2_IN，双刀双掷开关的两个输出端为1_OUT和2_OUT，射频接收处理模块4的两个输出端为Port1_OUT和Port2_OUT，Port1_IN连接第一射频接收模块21，Port2_IN连接第二射频接收模块22。低噪声放大器对B39频段信号的接收灵敏度能提高2.5db，低噪声放大器对B41频段信号的接收灵敏度能提高1db。其中，B41_RX为B41频段的接收信号，B39_RX为B39频段的接收信号。
在场景一中，当第一射频接收模块21未连接低噪声放大器时，对B41频段信号的接收灵敏度为-94db，当第二射频接收模块22未连接低噪声放大器时，对B39频段信号的接收灵敏度为-90db。假设当前第一射频接收模块21连接低噪声放大器，第二射频接收模块22未连接低噪声放大器，即Port1_IN连接输出端1_OUT，Port2_IN连接输出端2_OUT，则B41频段信号经过低噪声放大器后接收灵敏度为-95db，第一灵敏度获取单元312获取的第一灵敏度为-96.19db，第一灵敏度为射频接收处理模块4输出的B41频段信号的灵敏度和B39频段信号的灵敏度叠加后的灵敏度。在开关切换单元311将开关单元42中Port2_IN切换至连接输出端1_OUT，Port1_IN切换至连接输出端2_OUT后，即第一射频接收模块21未连接低噪声放大器，第二射频接收模块22连接低噪声放大器，B39频段信号经过低噪声放大器后接收灵敏度为-92.5db，第二灵敏度获取单元313获取的第二灵敏度为-96.32db，第二灵敏度为射频接收处理模块4输出的B41频段信号的灵敏度和B39频段信号的灵敏度叠加后的灵敏度。此时，第一灵敏度小于第二灵敏度，即当第一射频接收模块21未连接低噪声放大器，第二射频接收模块22连接低噪声放大器时，B39频段信号的灵敏度和B41频段信号的灵敏度叠加后的灵敏度更大，控制单元314控制开关切换单元311，将开关单元42中Port2_IN切换至连接输出端1_OUT，Port1_IN切换至连接输出端2_OUT，以使射频接收处理模块4输出的两个频段信号(即B39频段信号和B41频段信号)的灵敏度进行叠加后的灵敏度最大，即使射频电路达到最优的接收性能。
在场景二中，当第一射频接收模块21未连接低噪声放大器时，对B41 频段信号的接收灵敏度为-94db，当第二射频接收模块22未连接低噪声放大器时，对B39频段信号的接收灵敏度为-88db。假设当前第一射频接收模块21连接低噪声放大器，第二射频接收模块22未连接低噪声放大器，即Port1_IN连接输出端1_OUT，Port2_IN连接输出端2_OUT，则B41频段信号经过低噪声放大器后接收灵敏度为-95db，第一灵敏度获取单元312获取的第一灵敏度为-95.79db。在开关切换单元311将开关单元42中Port2_IN切换至连接输出端1_OUT，Port1_IN切换至连接输出端2_OUT后，即第一射频接收模块21未连接低噪声放大器，第二射频接收模块22连接低噪声放大器，B39频段信号经过低噪声放大器后接收灵敏度为-90.5db，第二灵敏度获取单元313获取的第二灵敏度为-95.6db。此时，第一灵敏度大于第二灵敏度，即当第一射频接收模块21连接低噪声放大器，第二射频接收模块22未连接低噪声放大器时，B39频段信号的灵敏度和B41频段信号的灵敏度叠加后的灵敏度更大，控制单元314控制开关切换单元311，将开关单元42中Port1_IN切换至连接输出端1_OUT，Port2_IN切换至连接输出端2_OUT，以使射频接收处理模块4输出的两个频段信号(即B39频段信号和B41频段信号)的灵敏度进行叠加后的灵敏度最大，即使射频电路达到最优的接收性能。
本公开实施例的射频电路包括以下优点：在射频电路包括至少两个射频接收模块，而射频电路中只有一个低噪声放大处理单元的情况下，至少两个频段信号中只有一个频段信号对应的射频接收模块能与低噪声放大处理单元连接。本公开实施例在射频电路中增加开关单元和控制模块，通过控制模块根据移动终端所处的网络类型控制开关单元中的一个输入端与第一输出端连接，以使射频电路在任意网络中接收性能均能达到最优。其中，若移动终端所处的网络类型为单载波网络，控制模块控制开关单元中与单载波频段对应射频接收模块的输出端与第一输出端连接，控制模块还控制开关单元中其它输入端与其它输出端断开连接，以实现提高射频接收模块接收的单载波信号的接收灵敏度，使射频电路在单载波网络中接收性能最优。若移动终端所处的网络类型为带间载波聚合网络，控制模块控制开关单元中的一个输入端与第一输出端连接，控制模块还控制开关单元中的其 它输入端分别与其它输出端连接，此时，开关单元中的一个输入端对应射频接收模块的频段信号通过低噪声放大处理单元提高接收灵敏度后输出，至少两个频段信号中其它频段信号直接输出，以使射频接收处理模块输出至少两个频段信号的灵敏度进行叠加后的灵敏度最大，即使射频电路在带间载波聚合网络中接收性能最优。这样，本公开实施例的射频电路在任意网络中接收性能均能达到最优，有效提升了移动终端用户的下行网络数据体验。
本公开实施例还公开了一种移动终端，包括上述的射频电路。
本公开实施例的移动终端可以包括：手机、平板电脑、个人数字助理(PDA)、膝上型便携计算机、车载电脑和可穿戴设备等。
本公开实施例的移动终端包括以下优点：在射频电路包括至少两个射频接收模块，而射频电路中只有一个低噪声放大处理单元的情况下，至少两个频段信号中只有一个频段信号对应的射频接收模块能与低噪声放大处理单元连接。本公开实施例在射频电路中增加开关单元和控制模块，通过控制模块根据移动终端所处的网络类型控制开关单元中的一个输入端与第一输出端连接，以使射频电路在任意网络中接收性能均能达到最优。其中，若移动终端所处的网络类型为单载波网络，控制模块控制开关单元中与单载波频段对应射频接收模块的输出端与第一输出端连接，控制模块还控制开关单元中其它输入端与其它输出端断开连接，以实现提高射频接收模块接收的单载波信号的接收灵敏度，使射频电路在单载波网络中接收性能最优。若移动终端所处的网络类型为带间载波聚合网络，控制模块控制开关单元中的一个输入端与第一输出端连接，控制模块还控制开关单元中的其它输入端分别与其它输出端连接，此时，开关单元中的一个输入端对应射频接收模块的频段信号通过低噪声放大处理单元提高接收灵敏度后输出，至少两个频段信号中其它频段信号直接输出，以使射频接收处理模块输出至少两个频段信号的灵敏度进行叠加后的灵敏度最大，即使射频电路在带间载波聚合网络中接收性能最优。这样，本公开实施例的射频电路在任意网络中接收性能均能达到最优，有效提升了移动终端用户的下行网络数据体验。
对于移动终端实施例而言，由于其包括射频电路实施例，所以描述的比较简单，相关之处参见射频电路实施例的部分说明即可。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。
尽管已描述了本公开实施例的可选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开实施例范围的所有变更和修改。
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，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、物品或者终端设备不仅包括那些要素，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、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。
虽然已经参考优选实施例对本公开进行了描述，但在不脱离本公开的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本公开并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (10)

  1. 一种射频电路，应用于移动终端，所述射频电路包括射频收发模块、至少两个射频接收模块、控制模块和射频接收处理模块，所述至少两个射频接收模块分别接收不同频段信号，
    所述射频接收处理模块包括：
    低噪声放大处理单元；
    开关单元，所述开关单元包括至少两个输入端和至少两个输出端，所述开关单元的至少两个输入端分别与所述至少两个射频接收模块的输出端连接，所述开关单元的第一输出端与所述低噪声放大处理单元的输入端连接，所述开关单元的其它输出端分别与所述射频收发模块连接；
    所述控制模块与所述开关单元的控制端连接，所述控制模块用于根据所述移动终端所处的网络类型控制所述开关单元中的一个输入端与所述第一输出端连接。
  2. 根据权利要求1所述的射频电路，其中，所述开关单元集成在所述低噪声放大处理单元中。
  3. 根据权利要求1所述的射频电路，其中，所述低噪声放大处理单元为低噪声放大器。
  4. 根据权利要求1所述的射频电路，其中，所述开关单元包括两个输入端和两个输出端，所述开关单元为双刀双掷开关。
  5. 根据权利要求1所述的射频电路，其中，所述移动终端所处的网络类型为单载波网络，所述控制模块用于控制所述开关单元中与所述单载波频段对应射频接收模块的输出端与所述第一输出端连接。
  6. 根据权利要求1所述的射频电路，其中，所述移动终端所处的网络类型为带间载波聚合网络，所述控制模块用于控制所述开关单元中的一个输入端与所述第一输出端连接，所述控制模块还用于控制所述开关单元中的其它输入端分别与其它输出端连接。
  7. 根据权利要求6所述的射频电路，其中，所述移动终端所处的网络 类型为带间双载波聚合网络，所述控制模块包括控制子模块，所述控制子模块包括：
    开关切换单元，在所述开关单元中的第一输入端与所述第一输出端连接的状态下，在第一预设时间后，所述开关切换单元用于将所述开关单元中的第二输入端切换至与所述第一输出端连接；在所述开关单元中的第二输入端与所述第一输出端连接的状态下，在所述第一预设时间后，所述开关切换单元还用于将所述开关单元中的第一输入端切换至与所述第一输出端连接；所述第一输入端和所述第二输入端分别与双载波频段对应两个射频接收模块的输出端连接；
    第一灵敏度获取单元，用于获取第一灵敏度，所述第一灵敏度为在所述开关单元中的第一输入端与所述第一输出端连接的状态下，所述射频接收处理模块输出的两个频段信号的灵敏度进行叠加后的灵敏度；
    第二灵敏度获取单元，用于获取第二灵敏度，所述第二灵敏度为在所述开关单元中的第二输入端与所述第一输出端连接的状态下，所述射频接收处理模块输出的两个频段信号的灵敏度进行叠加后的灵敏度；
    控制单元，用于对所述第一灵敏度和所述第二灵敏度进行比较，在所述第一灵敏度大于所述第二灵敏度的情况下，所述控制单元还用于控制所述开关切换单元将所述开关单元中的第一输入端切换至与所述第一输出端连接，在所述第一灵敏度小于所述第二灵敏度的情况下，所述控制单元还用于控制所述开关切换单元将所述开关单元中的第二输入端切换至与所述第一输出端连接。
  8. 根据权利要求7所述的射频电路，其中，所述控制模块还包括：
    启动子模块，用于每隔第二预设时间，启动所述控制子模块。
  9. 根据权利要求6或7或8所述的射频电路，其中，所述带间双载波聚合网络为B39频段信号和B41频段信号的带间双载波聚合网络，或B3频段信号和B7频段信号的带间双载波聚合网络。
  10. 一种移动终端，其中，包括权利要求1至9中任一项所述的射频电路。
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