CN110086478B - Radio frequency circuit and mobile terminal - Google Patents
Radio frequency circuit and mobile terminal Download PDFInfo
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- CN110086478B CN110086478B CN201910350714.8A CN201910350714A CN110086478B CN 110086478 B CN110086478 B CN 110086478B CN 201910350714 A CN201910350714 A CN 201910350714A CN 110086478 B CN110086478 B CN 110086478B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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Abstract
The invention provides a radio frequency circuit and a mobile terminal, wherein the radio frequency circuit comprises a radio frequency receiving and transmitting module, at least two radio frequency receiving modules for respectively receiving signals of different frequency bands, a control module and a radio frequency receiving and processing module, and the radio frequency receiving and processing module comprises: a low noise amplification processing unit; the switch unit comprises at least two input ends and at least two output ends, the at least two input ends are respectively connected with the output ends of the at least two radio frequency receiving modules, the first output end is connected with the input end of the low noise amplification processing unit, and the other output ends are respectively connected with the radio frequency receiving and transmitting modules; the control module is connected with the control end of the switch unit and used for controlling one input end of the switch unit to be connected with the first output end according to the network type of the mobile terminal. The invention can optimize the receiving performance of the radio frequency circuit under any scene under the condition of only one low-noise amplification processing unit.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a radio frequency circuit and a mobile terminal.
Background
From 2G mobile phones to 3G mobile phones, a single carrier communication technical scheme is adopted all the time, and nowadays, 4G mobile phones start to adopt a communication technical scheme of dual carrier aggregation, wherein a downlink dual carrier aggregation technology can improve the performance of a mobile phone downlink signal to a great extent, and improve the downlink data service experience of a user.
Currently, there are many frequency band combination methods for downlink dual Carrier aggregation, such as a downlink Carrier Aggregation (CA) method between a B39 frequency band and a B41 frequency band, a downlink Carrier aggregation method between a B3 frequency band and a B7 frequency band, and the like. When a radio frequency circuit in the prior art receives a downlink carrier aggregation signal between a B39 frequency band and a B41 frequency band, a Low Noise Amplifier (LNA) is often added in a B41 frequency band signal receiving path to improve the receiving sensitivity of a B41 frequency band signal.
The radio frequency circuit in the prior art also has the following defects: because only a receiving path of a B41 frequency band signal in the radio frequency circuit has a low noise amplifier, the receiving performance of the radio frequency circuit is not optimal in some network scenarios, and the downlink data experience of a user cannot be satisfied. For example, when the mobile phone is in a single carrier network and the rf circuit only receives the B39 band signal, or when the mobile phone receives the carrier aggregation signal of the B39 band signal and the B41 band signal in the inter-band carrier aggregation network and the reception performance of the B39 band signal is poor, the rf circuit cannot improve the reception sensitivity of the B39 band signal because the rf circuit only has a low noise amplifier in the reception path of the B41 band signal, so that the reception performance of the rf circuit is poor and the downlink data experience of the user is also poor.
Disclosure of Invention
In view of the foregoing problems, an object of the embodiments of the present invention is to provide a radio frequency circuit and a corresponding mobile terminal, so as to solve the problem that the radio frequency circuit in the prior art has poor receiving performance in some network scenarios and cannot meet the downlink data experience of a user.
In order to solve the above problems, an embodiment of the present invention discloses a radio frequency circuit, which is applied to a mobile terminal, and 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, where the at least two radio frequency receiving modules respectively receive signals of different frequency bands, and the radio frequency receiving processing module includes: a low noise amplification processing unit; the switch unit comprises at least two input ends and at least two output ends, the at least two input ends of the switch unit are respectively connected with the output ends of the at least two radio frequency receiving modules, a first output end of the switch unit is connected with the input end of the low noise amplification processing unit, and other output ends of the switch unit are respectively connected with the radio frequency receiving and transmitting module; the control module is connected with the control end of the switch unit, and the control module is used for controlling one input end of the switch unit to be connected with the first output end according to the network type of the mobile terminal.
The radio frequency circuit of the embodiment of the invention has the following advantages: under the condition that the radio frequency circuit comprises at least two radio frequency receiving modules and only one low-noise amplification processing unit is arranged in the radio frequency circuit, only one radio frequency receiving module corresponding to one frequency band signal in at least two frequency band signals can be connected with the low-noise amplification processing unit. In the embodiment of the invention, the switch unit and the control module are added in the radio frequency circuit, one input end of the switch unit is controlled to be connected with the first output end through the control module according to the network type of the mobile terminal, and at the moment, the frequency band signal of the radio frequency receiving module corresponding to one input end of the switch unit is output after the receiving sensitivity is improved through the low-noise amplification processing unit, so that the receiving performance of the radio frequency circuit in any network can be optimal, and the downlink network data experience of a mobile terminal user is effectively improved.
In order to solve the above problem, the embodiment of the present invention further discloses a mobile terminal, which includes the radio frequency circuit.
The mobile terminal of the embodiment of the invention has the following advantages: under the condition that the radio frequency circuit comprises at least two radio frequency receiving modules and only one low-noise amplification processing unit is arranged in the radio frequency circuit, only one radio frequency receiving module corresponding to one frequency band signal in at least two frequency band signals can be connected with the low-noise amplification processing unit. In the embodiment of the invention, the switch unit and the control module are added in the radio frequency circuit, one input end of the switch unit is controlled to be connected with the first output end through the control module according to the network type of the mobile terminal, and at the moment, the frequency band signal of the radio frequency receiving module corresponding to one input end of the switch unit is output after the receiving sensitivity is improved through the low-noise amplification processing unit, so that the receiving performance of the radio frequency circuit in any network can be optimal, and the downlink network data experience of a mobile terminal user is effectively improved.
Drawings
FIG. 1 is a block diagram of an embodiment of a radio frequency circuit of the present invention;
FIG. 2 is a block diagram of an embodiment of a radio frequency circuit of the present invention;
FIG. 3 is a block diagram of a control module in an embodiment of a radio frequency circuit of the present invention;
fig. 4 is a schematic structural diagram of an embodiment of a radio frequency circuit according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a block diagram of an embodiment of a radio frequency circuit according to the present invention, which is applied to a mobile terminal. Referring to fig. 1, the rf circuit may include an rf transceiver module 1, at least two rf receiving modules (e.g., a first rf receiving module 21, … …, an nth rf receiving module 2N, where N is an integer greater than or equal to 1), a control module 3, and an rf receiving processing module 4, where the at least two rf receiving modules respectively receive signals of different frequency bands, such as a B3 frequency band signal, a B7 frequency band signal, a B39 frequency band signal, a B40 frequency band signal, or a B41 frequency band signal, and the rf receiving processing module 4 includes: a low-noise amplification processing unit 41; and the switch unit 42, the switch unit 42 includes at least two input ends and at least two output ends, the at least two input ends of the switch unit 42 are respectively connected with the output ends of the at least two radio frequency receiving modules, a first output end of the switch unit 42 is connected with the input end of the low noise amplification processing unit 41, and other output ends of the switch unit 42 are respectively connected with the radio frequency transceiving module 1. The control module 3 is connected to the control end of the switch unit 42, and the control module 3 is configured to control one input end of the switch unit 42 to be connected to the first output end according to a network type where the mobile terminal is located, so as to optimize a receiving performance of the radio frequency circuit. When the low-noise amplification processing unit 41 is connected to the output end of the rf receiving module, the low-noise amplification processing unit 41 may improve the receiving sensitivity of the rf receiving module to the frequency band signal.
In this way, in the case that the rf circuit includes at least two rf receiving modules and there is only one low-noise amplification processing unit 41 in the rf circuit, only the rf receiving module corresponding to one of the at least two frequency band signals can be connected to the low-noise amplification processing unit 41. After the switch unit 42 and the control module 3 are added in the radio frequency circuit, one input end of the switch unit 42 can be controlled to be connected with the first output end through the control module 3 according to the network type of the mobile terminal, at this time, a frequency band signal of the radio frequency receiving module corresponding to one input end of the switch unit 42 is output after the receiving sensitivity is improved through the low-noise amplification processing unit 41, so that the receiving performance of the radio frequency circuit in any network can be optimal, and the downlink network data experience of a mobile terminal user is effectively improved.
Alternatively, in an embodiment of the present invention, the low noise amplification processing unit 41 may be a low noise amplifier in the related art.
Alternatively, in an embodiment of the present invention, the switching unit 42 may be integrated in the low noise amplification processing unit 41, so as to reduce the space occupied by the switching unit 42 in the mobile terminal. At this time, the low-noise amplification processing unit 41 includes a low-noise amplifier and a switching unit 42.
Alternatively, in a specific embodiment of the present invention, referring to fig. 2 and 4, the switch unit 42 includes two input terminals and two output terminals, in which case, the switch unit 42 may be a double-pole double-throw switch. Alternatively, in another embodiment of the present invention, the switch unit 42 includes three input terminals and three output terminals, in which case, the switch unit 42 may be a three-pole three-throw switch.
Optionally, in an embodiment of the present invention, the network type where the mobile terminal is located is a single carrier network, and the control module 3 is configured to control the output end of the radio frequency receiving module corresponding to a single carrier frequency band in the switch unit 42 to be connected to the first output end, so as to improve the receiving sensitivity of a single carrier signal received by the radio frequency receiving module, and optimize the receiving performance of the radio frequency circuit. When the control module 3 controls the output terminal 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 terminal, the control module 3 may also control other input terminals in the switch unit 42 to be disconnected from other output terminals.
Therefore, for any frequency band single carrier network, the embodiment of the invention can improve the receiving sensitivity of the radio frequency circuit to the frequency band signal, namely the receiving performance of the radio frequency circuit can be optimal. For example, when the mobile terminal is in a single carrier network of the B39 frequency band, the control module 3 controls the switch unit 42 to connect the output terminal of the radio frequency receiving module corresponding to the B39 frequency band with the first output terminal, so as to improve the receiving sensitivity of the B39 frequency band signal received by the radio frequency receiving module; when the mobile terminal is in the single carrier network of the B41 frequency band, the control module 3 controls the switch unit 42 to connect the output terminal of the radio frequency receiving module corresponding to the B41 frequency band with the first output terminal, so as to improve the receiving sensitivity of the B41 frequency band signal received by the radio frequency receiving module.
Optionally, in another embodiment of the present invention, the network type where the mobile terminal is located is an inter-band carrier aggregation network, the control module 3 is configured to control one input end of the switch unit 42 to be connected to the first output end, and the control module 3 is further configured to control other input ends of the switch unit 42 to be connected to other output ends, respectively, so as to improve the receiving sensitivity of the frequency band signal received by the radio frequency receiving module corresponding to the input end (connected to the first output end) of the switch unit 42, so that the sensitivity of all frequency band signals received by the radio frequency circuit after being superimposed is maximized, even if the receiving performance of the radio frequency circuit is optimal.
The inter-band carrier aggregation network may be an inter-band dual carrier aggregation network or an inter-band multi-carrier aggregation network.
Optionally, in an embodiment of the present invention, referring to fig. 3, the type of the network where the mobile terminal is located is an inter-band dual carrier aggregation network, the control module 3 may include a control sub-module 31, and the control sub-module 31 may include: a switch switching unit 311, wherein in a state that 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 configured to switch the second input terminal of the switch unit 42 to be connected to the first output terminal; in a state where the second 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 further configured to switch the first input terminal of the switch unit 42 to be connected to the first output terminal; the first input end and the second input end are respectively connected with the output ends of the two radio frequency receiving modules corresponding to the double-carrier frequency band; a first sensitivity obtaining unit 312, where the first sensitivity obtaining unit 312 is configured to obtain a first sensitivity, where the first sensitivity is a sensitivity obtained after the sensitivities of two frequency band signals output by the radio frequency receiving and processing module 4 are superimposed in a state where a first input end of the switch unit 42 is connected to a first output end of the switch unit; a second sensitivity obtaining unit 313, where the second sensitivity obtaining unit 313 is configured to obtain a second sensitivity, where the second sensitivity is a sensitivity obtained by superimposing sensitivities of two frequency band signals output by the radio frequency receiving and processing module 4 in a state where a second input end of the switch unit 42 is connected to the first output end; and the control unit 314, wherein the control unit 314 is configured to compare the first sensitivity with the second sensitivity, and in a case that the first sensitivity is greater than the second sensitivity, the control unit 314 is further configured to control the switch switching unit 311 to switch the first input terminal of the switch unit 42 to be connected with the first output terminal, and in a case that the first sensitivity is less than the second sensitivity, the control unit 314 is further configured to control the switch switching unit 311 to switch the second input terminal of the switch unit 42 to be connected with the first output terminal.
Optionally, in an embodiment of the present invention, referring to fig. 3, the network type where the mobile terminal is located is an inter-band dual carrier aggregation network, and the control module 3 may further include: and the promoter module 32 is used for starting the control submodule 31 every second preset time. The sensitivity of the superposed two frequency band signals output by the radio frequency receiving and processing module 4 can be kept as maximum as possible by the aid of the promoter module 32 and the control submodule 31, and downlink network data experience of a user is met.
It should be noted that, when the mobile terminal is in the multi-carrier aggregation network, the internal structure of the control module 3 may be adjusted according to the number of the frequency band signals in the multi-carrier aggregation network, and the process that the control module 3 maximizes the sensitivity after overlapping the sensitivities of the multiple frequency band signals output by the radio frequency receiving and processing module 4 is similar to the process that the control module 3 maximizes the sensitivity after overlapping the sensitivities of the two frequency band signals output by the radio frequency receiving and processing module 4, and will not be described in detail below.
Optionally, in an embodiment of the present invention, the first preset time and the second preset time may be set according to a large amount of test data, so as to ensure that the downlink network data experience of the user is accurate. In one embodiment of the present invention, the first preset time may be set to 3ms or 5ms, and the second preset time may be set to 10 ms.
Alternatively, the inter-band dual carrier aggregation network may be an inter-band dual carrier aggregation network of B39 band signals and B41 band signals, or an inter-band dual carrier aggregation network of B3 band signals and B7 band signals, or the like.
In an embodiment of the present invention, referring to fig. 2 and 4, the switch unit 42 is a double-pole double-throw switch, the network type of the mobile terminal is an inter-band double-carrier aggregation network of B39 band signals and B41 band signals, the rf receiving module corresponding to the B41 band signal is the first rf receiving module 21, and the rf receiving module corresponding to the B39 band signal is the second rf receiving module 22. IN fig. 2 and 4, the switch unit 42 is integrated IN the low noise amplification processing unit 41, two input terminals of the rf receiving processing module 4, i.e. two input terminals of the double-pole double-throw switch, are Port1_ IN and Port2_ IN, two output terminals of the double-pole double-throw switch are 1_ OUT and 2_ OUT, two output terminals of the rf receiving processing module 4 are Port1_ OUT and Port2_ OUT, the Port1_ IN is connected to the first rf receiving module 21, and the Port2_ IN is connected to the second rf receiving module 22. The receiving sensitivity of the low-noise amplifier to the signals in the B39 frequency band can be improved by 2.5db, and the receiving sensitivity of the low-noise amplifier to the signals in the B41 frequency band can be improved by 1 db. B41_ RX is a received signal of B41 band, and B39_ RX is a received signal of B39 band.
In scenario one, when the first rf receiving module 21 is not connected to the low noise amplifier, the receiving sensitivity to the B41 frequency band signal is-94 db, and when the second rf receiving module 22 is not connected to the low noise amplifier, the receiving sensitivity to the B39 frequency band signal is-90 db. Assuming that the first rf receiving module 21 is currently connected to the lna, and the second rf receiving module 22 is not connected to the lna, that is, the Port1_ IN is connected to the output terminal 1_ OUT, and the Port2_ IN is connected to the output terminal 2_ OUT, then the receiving sensitivity of the B41 band signal after passing through the lna is-95 db, the first sensitivity acquired by the first sensitivity acquiring unit 312 is-96.19 db, and the first sensitivity is the sensitivity obtained by superimposing the sensitivity of the B41 band signal output by the rf receiving and processing module 4 and the sensitivity of the B39 band signal. The switch switching unit 311 switches the Port2_ IN of the switch unit 42 to the connection output terminal 1_ OUT, and after the Port1_ IN is switched to the connection output terminal 2_ OUT, that is, the first rf receiving module 21 is not connected to the low noise amplifier, the second rf 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-92.5 db, the second sensitivity acquired by the second sensitivity acquiring unit 313 is-96.32 db, and the second sensitivity is the sensitivity obtained by superimposing the sensitivity of the B41 band signal output by the rf receiving and processing module 4 and the sensitivity of the B39 band signal. At this time, the first sensitivity is smaller than the second sensitivity, that is, when the first rf receiving module 21 is not connected to the lna and the second rf receiving module 22 is connected to the lna, the sensitivity of the B39 band signal and the sensitivity of the B41 band signal are superimposed to be greater, the control unit 314 controls the switch switching unit 311 to switch the Port2_ IN to the connection output terminal 1_ OUT and the Port1_ IN to the connection output terminal 2_ OUT IN the switch unit 42, so that the sensitivity of the two band signals (i.e., the B39 band signal and the B41 band signal) output by the rf receiving and processing module 4 is superimposed to be the maximum, even if the receiving performance of the rf circuit is optimal.
In scenario two, when the first rf receiving module 21 is not connected to the low noise amplifier, the receiving sensitivity to the B41 frequency band signal is-94 db, and when the second rf receiving module 22 is not connected to the low noise amplifier, the receiving sensitivity to the B39 frequency band signal is-88 db. Assuming that the first rf receiving module 21 is currently connected to the lna, and the second rf receiving module 22 is not connected to the lna, that is, Port1_ IN is connected to the output terminal 1_ OUT, and Port2_ IN is connected to the output terminal 2_ OUT, the receiving sensitivity of the B41 band signal passing through the lna is-95 db, and the first sensitivity acquired by the first sensitivity acquiring unit 312 is-95.79 db. After the switch switching unit 311 switches the Port2_ IN of the switch unit 42 to the connection output terminal 1_ OUT, and the Port1_ IN is switched to the connection output terminal 2_ OUT, that is, the first rf receiving module 21 is not connected to the low noise amplifier, the second rf receiving module 22 is connected to the low noise amplifier, the reception sensitivity of the B39 band signal passing through the low noise amplifier is-90.5 db, and the second sensitivity acquired by the second sensitivity acquiring unit 313 is-95.6 db. At this time, the first sensitivity is greater than the second sensitivity, that is, when the first rf receiving module 21 is connected to the lna and the second rf receiving module 22 is not connected to the lna, the sensitivity of the B39 band signal and the sensitivity of the B41 band signal are superimposed to be greater, the control unit 314 controls the switch switching unit 311 to switch the Port1_ IN to the connection output terminal 1_ OUT and the Port2_ IN to the connection output terminal 2_ OUT IN the switch unit 42, so that the sensitivity of the two band signals (i.e., the B39 band signal and the B41 band signal) output by the rf receiving and processing module 4 is superimposed to be the maximum, even if the receiving performance of the rf circuit is optimal.
The radio frequency circuit of the embodiment of the invention has the following advantages: under the condition that the radio frequency circuit comprises at least two radio frequency receiving modules and only one low-noise amplification processing unit is arranged in the radio frequency circuit, only one radio frequency receiving module corresponding to one frequency band signal in at least two frequency band signals can be connected with the low-noise amplification processing unit. According to the embodiment of the invention, the switch unit and the control module are added in the radio frequency circuit, and the control module controls one input end in the switch unit to be connected with the first output end according to the network type of the mobile terminal, so that the receiving performance of the radio frequency circuit in any network can be optimal. If the network type of the mobile terminal is a single carrier network, the control module controls the output end of the radio frequency receiving module corresponding to the single carrier frequency band in the switch unit to be connected with the first output end, and also controls other input ends in the switch unit to be disconnected with other output ends, so that the receiving sensitivity of the single carrier signal received by the radio frequency receiving module is improved, and the receiving performance of the radio frequency circuit in the single carrier network is optimal. If the network type of the mobile terminal is an inter-band carrier aggregation network, the control module controls one input end of the switch unit to be connected with the first output end, and also controls other input ends of the switch unit to be connected with other output ends respectively, at this time, the frequency band signal of the radio frequency receiving module corresponding to one input end of the switch unit is output after the receiving sensitivity is improved through the low-noise amplification processing unit, and other frequency band signals of at least two frequency band signals are directly output, so that the sensitivity of the radio frequency receiving processing module outputting the at least two frequency band signals is maximum after superposition, even if the receiving performance of the radio frequency circuit in the inter-band carrier aggregation network is optimal. Therefore, the receiving performance of the radio frequency circuit in the embodiment of the invention can be optimal in any network, and the downlink network data experience of a mobile terminal user is effectively improved.
The embodiment of the invention also discloses a mobile terminal which comprises the radio frequency circuit.
The mobile terminal of the embodiment of the invention can comprise: cell phones, tablet computers, Personal Digital Assistants (PDAs), laptop portable computers, in-vehicle computers, wearable devices, and the like.
The mobile terminal of the embodiment of the invention has the following advantages: under the condition that the radio frequency circuit comprises at least two radio frequency receiving modules and only one low-noise amplification processing unit is arranged in the radio frequency circuit, only one radio frequency receiving module corresponding to one frequency band signal in at least two frequency band signals can be connected with the low-noise amplification processing unit. According to the embodiment of the invention, the switch unit and the control module are added in the radio frequency circuit, and the control module controls one input end in the switch unit to be connected with the first output end according to the network type of the mobile terminal, so that the receiving performance of the radio frequency circuit in any network can be optimal. If the network type of the mobile terminal is a single carrier network, the control module controls the output end of the radio frequency receiving module corresponding to the single carrier frequency band in the switch unit to be connected with the first output end, and also controls other input ends in the switch unit to be disconnected with other output ends, so that the receiving sensitivity of the single carrier signal received by the radio frequency receiving module is improved, and the receiving performance of the radio frequency circuit in the single carrier network is optimal. If the network type of the mobile terminal is an inter-band carrier aggregation network, the control module controls one input end of the switch unit to be connected with the first output end, and also controls other input ends of the switch unit to be connected with other output ends respectively, at this time, the frequency band signal of the radio frequency receiving module corresponding to one input end of the switch unit is output after the receiving sensitivity is improved through the low-noise amplification processing unit, and other frequency band signals of at least two frequency band signals are directly output, so that the sensitivity of the radio frequency receiving processing module outputting the at least two frequency band signals is maximum after superposition, even if the receiving performance of the radio frequency circuit in the inter-band carrier aggregation network is optimal. Therefore, the receiving performance of the radio frequency circuit in the embodiment of the invention can be optimal in any network, and the downlink network data experience of a mobile terminal user is effectively improved.
For the embodiment of the mobile terminal, since the embodiment of the radio frequency circuit is included, the description is relatively simple, and relevant points can be referred to the partial description of the embodiment of the radio frequency circuit.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The radio frequency circuit and the mobile terminal provided by the present invention are introduced in detail, and a specific example is applied in the present document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A radio frequency circuit applied to a mobile terminal is characterized in that the radio frequency circuit comprises a radio frequency transceiver module, at least two radio frequency receiving modules, a control module and a radio frequency receiving processing module, wherein the at least two radio frequency receiving modules respectively receive signals of different frequency bands,
the radio frequency receiving and processing module comprises:
a low noise amplification processing unit;
the switch unit comprises at least two input ends and at least two output ends, the at least two input ends of the switch unit are respectively connected with the output ends of the at least two radio frequency receiving modules, a first output end of the switch unit is connected with the input end of the low noise amplification processing unit, and other output ends of the switch unit are respectively connected with the radio frequency receiving and transmitting module;
the control module is connected with the control end of the switch unit and is used for controlling one input end of the switch unit to be connected with the first output end according to the network type of the mobile terminal;
the network type of the mobile terminal is an inter-band carrier aggregation network, the control module is used for controlling one input end of the switch unit to be connected with the first output end, and the control module is also used for controlling other input ends of the switch unit to be connected with other output ends respectively;
the network type of the mobile terminal is an inter-band dual carrier aggregation network, the control module comprises a control submodule, and the control submodule comprises:
the switch switching unit is used for switching a second input end in the switch unit to be connected with the first output end after a first preset time in a state that the first input end in the switch unit is connected with the first output end; the switch switching unit is further configured to switch the first input terminal of the switch unit to be connected to the first output terminal after the first preset time in a state where the second input terminal of the switch unit is connected to the first output terminal; the first input end and the second input end are respectively connected with the output ends of the two radio frequency receiving modules corresponding to the double-carrier frequency band;
a first sensitivity acquisition unit, configured to acquire a first sensitivity, where the first sensitivity is a sensitivity obtained by superimposing sensitivities of two frequency band signals output by the radio frequency reception processing module in a state where a first input end of the switch unit is connected to the first output end;
a second sensitivity acquisition unit, configured to acquire a second sensitivity, where the second sensitivity is a sensitivity obtained by superimposing sensitivities of two frequency band signals output by the radio frequency reception processing module in a state where a second input terminal of the switch unit is connected to the first output terminal;
the control unit is used for comparing the first sensitivity with the second sensitivity, and under the condition that the first sensitivity is greater than the second sensitivity, the control unit is also used for controlling the switch switching unit to switch a first input end in the switch unit to be connected with the first output end, and under the condition that the first sensitivity is less than the second sensitivity, the control unit is also used for controlling the switch switching unit to switch a second input end in the switch unit to be connected with the first output end.
2. The radio frequency circuit according to claim 1, wherein the switching unit is integrated in the low noise amplification processing unit.
3. The radio frequency circuit according to claim 1, wherein the low noise amplification processing unit is a low noise amplifier.
4. The radio frequency circuit according to claim 1, wherein the switch unit comprises two input terminals and two output terminals, and the switch unit is a double-pole double-throw switch.
5. The radio frequency circuit of claim 1, wherein the control module further comprises:
and the starting submodule is used for starting the control submodule every second preset time.
6. The RF circuit of claim 1 or 5, wherein the inter-band dual carrier aggregation network is an inter-band dual carrier aggregation network of B39 band signals and B41 band signals, or an inter-band dual carrier aggregation network of B3 band signals and B7 band signals.
7. A mobile terminal characterized by comprising a radio frequency circuit according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910350714.8A CN110086478B (en) | 2019-04-28 | 2019-04-28 | Radio frequency circuit and mobile terminal |
| PCT/CN2020/081841 WO2020220892A1 (en) | 2019-04-28 | 2020-03-27 | Radio frequency circuit and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910350714.8A CN110086478B (en) | 2019-04-28 | 2019-04-28 | Radio frequency circuit and mobile terminal |
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| CN110086478B true CN110086478B (en) | 2021-01-08 |
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| CN110086478B (en) * | 2019-04-28 | 2021-01-08 | 维沃移动通信有限公司 | Radio frequency circuit and mobile terminal |
| CN111769840B (en) * | 2020-06-04 | 2022-03-29 | 广州慧智微电子股份有限公司 | Radio frequency signal processing circuit with multiple working modes and radio frequency front end unit |
| WO2022193092A1 (en) * | 2021-03-15 | 2022-09-22 | 深圳市大疆创新科技有限公司 | Signal transmission apparatus, movable platform, control method, system, and storage medium |
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| CN105119611A (en) * | 2014-04-11 | 2015-12-02 | 天工方案公司 | Circuits and methods related to radio-frequency receivers having carrier aggregation |
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| WO2020220892A1 (en) | 2020-11-05 |
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