CN108768434B - Radio frequency circuit, terminal and signal transmission control method - Google Patents
Radio frequency circuit, terminal and signal transmission control method Download PDFInfo
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- CN108768434B CN108768434B CN201810575674.2A CN201810575674A CN108768434B CN 108768434 B CN108768434 B CN 108768434B CN 201810575674 A CN201810575674 A CN 201810575674A CN 108768434 B CN108768434 B CN 108768434B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—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
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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
- H04B1/006—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
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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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- 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
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a radio frequency circuit, a terminal and a signal emission control method, which comprise the following steps: a first antenna and a second antenna; a first transceiving unit for transmitting signals in a first frequency band and a second transceiving unit for transmitting signals in a second frequency band; the switching unit is connected with the first antenna to form a first transceiving channel for transmitting signals on a first frequency band and a second frequency band; the second antenna is connected with the first antenna to form a first transceiving channel for transmitting signals on a first frequency band and a second frequency band; the switching unit works in a first state when the current network of the terminal is a first network, and the first transceiving unit and the second transceiving unit are respectively communicated with the first transceiving channel and the second transceiving channel in a one-to-one correspondence manner; and when the current network of the terminal is a second network, the terminal works in a second state, and the first transceiving unit or the second transceiving unit is communicated with the first transceiving channel and the second transceiving channel. The radio frequency circuit simultaneously transmits uplink signals through the two receiving and transmitting channels, and the uplink data transmission performance of the terminal is improved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a radio frequency circuit, a terminal, and a signal transmission control method.
Background
With the rapid development of mobile communication technology, terminals such as mobile phones and tablet computers are becoming more and more popular, and become an indispensable part of people's daily life. In the process of using the terminal, the requirements for the performance and the functions of the terminal are becoming higher and higher, especially for the high-rate data transmission capability of the terminal. However, in the working process of the current terminal, because the network in the working frequency band of the terminal cannot simultaneously meet the requirements of high data rate and wide area coverage, especially when the network wide area coverage capability of the working frequency band of the terminal is poor, the terminal is affected to transmit uplink signals, so that the uplink data transmission performance of the terminal is reduced.
Therefore, the problem of low uplink data transmission performance exists in the current terminal due to the fact that the network cannot meet the requirements of high data rate and wide area coverage.
Disclosure of Invention
The embodiment of the invention provides a radio frequency circuit, a terminal and a signal emission control method, which aim to solve the problem of low uplink data transmission performance caused by the fact that a network where the current terminal is located cannot meet the requirements of high data rate and wide area coverage.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a radio frequency circuit, which is applied to a terminal, and the radio frequency circuit includes:
a first antenna and a second antenna;
the first transceiver unit is used for transmitting signals on a first frequency band, and the second transceiver unit is used for transmitting signals on a second frequency band;
the switching unit is connected with the first antenna and forms a first transceiving channel for transmitting signals on a first frequency band and a second frequency band; the second receiving and transmitting channel is connected with the second antenna and used for transmitting signals on the first frequency band and the second frequency band;
the switching unit is configured to operate in a first state when the current network of the terminal is a first network, and communicate the first transceiving unit and the second transceiving unit with the first transceiving channel and the second transceiving channel in a one-to-one correspondence manner, respectively; and when the current network of the terminal is a second network, the terminal works in a second state, and the first transceiving unit or the second transceiving unit is communicated with the first transceiving channel and the second transceiving channel.
In a second aspect, an embodiment of the present invention further provides a terminal, including the radio frequency circuit described above.
In a third aspect, an embodiment of the present invention further provides a signal transmission control method, which is applied to the terminal described above, and includes:
acquiring a current network of the terminal;
under the condition that the current network of the terminal is a first network, transmitting signals on a first frequency band and a second frequency band through a first transceiving channel and a second transceiving channel respectively;
and transmitting signals on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel under the condition that the current network of the terminal is the second network.
In the embodiment of the invention, the radio frequency circuit of the terminal can simultaneously transmit the uplink signal through the first transceiving channel and the second transceiving channel, so that the capability of the terminal for transmitting the uplink signal is enhanced, and the uplink data transmission performance of the terminal is improved. In addition, the terminal can also transmit signals through the same frequency band or different frequency bands when the first transceiving channel and the second transceiving channel simultaneously transmit uplink signals according to the current network where the terminal is located, that is, the terminal transmits uplink signals on the first frequency band and the second frequency band through the first transceiving channel and the second transceiving channel respectively when the terminal is in the first network; and when the terminal is in the second network, the terminal transmits the uplink signal on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel, so that the terminal can flexibly select the uplink signal transmitting mode, and the uplink signal transmitting capability and the uplink data transmission performance of the terminal are further enhanced.
Drawings
Fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present invention;
fig. 2a is a schematic structural diagram of a switching unit in a first state according to an embodiment of the present invention;
fig. 2b is a second schematic structural diagram of a switching unit in a first state according to an embodiment of the present invention;
fig. 2c is one of the schematic structural diagrams of a switching unit in a second state according to an embodiment of the present invention;
fig. 2d is a second schematic structural diagram of a switching unit in a second state according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another RF circuit according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a signal transmission control method according to an embodiment of 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.
The radio frequency circuit of the embodiment of the invention is applied to a terminal, and comprises:
a first antenna and a second antenna;
the first transceiver unit is used for transmitting signals on a first frequency band, and the second transceiver unit is used for transmitting signals on a second frequency band;
the switching unit is connected with the first antenna and forms a first transceiving channel for transmitting signals on a first frequency band and a second frequency band; the second receiving and transmitting channel is connected with the second antenna and used for transmitting signals on the first frequency band and the second frequency band;
the switching unit is configured to operate in a first state when a current network of the terminal is a first network, and correspondingly communicate the first transceiving unit and the second transceiving unit with the first transceiving channel and the second transceiving channel one to one; and when the current network of the terminal is a second network, working in a second state, and communicating the first transceiving unit or the second transceiving unit with the first transceiving channel and the second transceiving channel.
The radio frequency circuit of the embodiment of the invention can simultaneously transmit the uplink signal through the first transceiving channel and the second transceiving channel, thereby enhancing the capability of the terminal for transmitting the uplink signal and improving the uplink data transmission performance of the terminal. In addition, the terminal can also transmit signals through the same frequency band or different frequency bands when the first transceiving channel and the second transceiving channel simultaneously transmit uplink signals according to the current network where the terminal is located, that is, the terminal transmits uplink signals on the first frequency band and the second frequency band through the first transceiving channel and the second transceiving channel respectively when the terminal is in the first network; and when the terminal is in the second network, the terminal transmits the uplink signal on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel, so that the terminal can flexibly select the uplink signal transmitting mode, and the uplink signal transmitting capability and the uplink data transmission performance of the terminal are further enhanced.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present invention, applied to a terminal, where the radio frequency circuit 10 includes:
a first antenna 11 and a second antenna 12;
a first transceiving unit 13 for transmitting signals on a first frequency band, and a second transceiving unit 14 for transmitting signals on a second frequency band;
a switching unit 15 connected to the first antenna 11 to form a first transceiving channel for transmitting signals in a first frequency band and a second frequency band; and, connect with said second aerial 12, form the second transceiver channel used for transmitting the signal on the first frequency band and second frequency band;
the switching unit 15 is configured to operate in a first state when the current network of the terminal is a first network, and communicate the first transceiving unit 13 and the second transceiving unit 14 with the first transceiving channel and the second transceiving channel in a one-to-one correspondence manner, respectively; and when the current network of the terminal is a second network, operating in a second state, and communicating the first transceiver unit 13 or the second transceiver unit 14 with the first transceiver channel and the second transceiver channel.
In the embodiment of the present invention, because the first transceiver unit 13 may transmit signals in the first frequency band, and the second transceiver unit 14 may transmit signals in the second frequency band, and when the current network of the terminal is the first network, the switching unit 15 connects the first transceiver unit 13 and the second transceiver unit 14 to the first transceiver channel and the second transceiver channel in a one-to-one correspondence manner, so that the terminal can transmit uplink signals in the first frequency band and the second frequency band through the first transceiver channel and the second transceiver channel, respectively; when the current network of the terminal is the second network, the switching unit 15 connects the first transceiving unit 13 or the second transceiving unit 14 with the first transceiving channel and the second transceiving channel, so that the terminal can transmit the uplink signal on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel.
It should be noted that, after receiving the downlink signal sent by the network-side device, the terminal may send, through its radio frequency circuit 10, an uplink signal to the network-side device on the first frequency band and the second frequency band simultaneously in response to the downlink signal, that is, the first frequency band and the second frequency band are frequency bands in which the radio frequency circuit 10 can transmit the uplink signal simultaneously, for example: the first frequency band and the second frequency band are respectively a reuse (reuse) frequency band in a Global System for Mobile Communication (GSM) network and a Long Term Evolution (LTE) network.
When the current network of the terminal is the first network, the radio frequency circuit 10 may transmit uplink signals on the first frequency band and the second frequency band through the first transceiving channel and the second transceiving channel, respectively, and when the first frequency band is a network frequency band covered by a wide area and the second frequency band is a network frequency band for high data transmission, for example: the first frequency band is a third Generation mobile communication technology (3rd-Generation, 3G) frequency band, the second frequency band is an LTE frequency band and the like, so that the wide area coverage and high data transmission requirements when the terminal transmits uplink signals can be met, and the data transmission performance of the terminal is improved; when the current network of the terminal is the second network, the radio frequency circuit 10 may transmit the uplink signal on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel, that is, the uplink signal is transmitted on the first frequency band through the first antenna and the second antenna simultaneously, so as to enhance the signal transmitting capability of the terminal, and also improve the data transmission performance of the terminal.
In addition, the first network and the second network may be networks with different parameters, such as network architecture, and the terminal transmits uplink signals on two different frequency bands through the first transceiving channel and the second transceiving channel under the first network, so that the capability of the terminal for transmitting the uplink signals can be enhanced; and the terminal transmits the uplink signal on the same frequency band through the first transceiving channel and the second transceiving channel in the second network, which may enhance the capability of transmitting the uplink signal, and is not limited herein.
In this embodiment of the present invention, the first transceiver unit 13 and the second transceiver unit 14 may receive a downlink signal and transmit an uplink signal in a first frequency band and a second frequency band, respectively, specifically, the first transceiver unit 13 includes a first radio frequency transceiver 131 and a first modem 132 operating in the first frequency band, and the first radio frequency transceiver 131 is connected to the first modem 132 and the switching unit 15;
the second transceiver unit 14 includes a second rf transceiver 141 and a second modem 142 operating in a second frequency band, and the second rf transceiver 141 is connected to the second modem 142 and the switching unit 15.
Here, the first modem 132 may modulate and demodulate the uplink signal of the first frequency band to provide the waveform and data required by the uplink signal of the first frequency band, and the first rf transceiver 131 may perform up-down conversion and driving method on the uplink signal of the first frequency band, so as to enable the first transceiver unit 13 to transmit the uplink signal on the first frequency band; similarly, the second modem 142 may modulate and demodulate the uplink signal of the second frequency band to provide the waveform and data required by the uplink signal of the second frequency band, and the second rf transceiver 141 may perform up-down conversion and driving method on the uplink signal of the second frequency band, so as to implement the first transceiver unit 13 to transmit the uplink signal on the second frequency band.
In the embodiment of the present invention, the switching unit may be any switching unit that, in the first state, connects the first transceiving unit 13 and the second transceiving unit 14 with the first transceiving channel and the second transceiving channel in a one-to-one correspondence manner; and a component for communicating the first transceiver unit 13 or the second transceiver unit 14 with the first transceiving channel and the second transceiving channel in the second state.
Specifically, as shown in fig. 2a to 2d, the switching unit 15 includes a first terminal 151, a second terminal 152, a third terminal 153, a fourth terminal 154, a first connection arm 155, and a second connection arm 156, wherein the first terminal 151 is connected to the first antenna 11; the second terminal 152 is connected to the second antenna 12; the third terminal 153 is connected to the first transceiver unit 13; the fourth terminal 154 is connected to the second transceiver unit 14;
when the first connecting arm 155 connects the first terminal 151 with the third terminal 153, and the second connecting arm 156 connects the second terminal 152 with the fourth terminal 154, as shown in fig. 2 a; alternatively, the first connecting arm 155 connects the second terminal 152 and the fourth terminal 154, and the second connecting arm 156 connects the first terminal 151 and the third terminal 153, as shown in fig. 2b, the switching unit 15 operates in the first state; and, when said first connection arm 155 connects said first terminal 51 with said third terminal 153, and said second connection arm 156 connects said second terminal 152 with said third terminal 153, as shown in fig. 2 c; alternatively, the first connecting arm 155 connects the first terminal 151 and the fourth terminal 154, and the second connecting arm 156 connects the second terminal 152 and the fourth terminal 154, as shown in fig. 2d, the switching unit 15 operates in the second state.
Here, the switching unit 15 can switch between the first state and the second state by the action of the two connection arms at the four terminals, and the implementation principle thereof is similar to that of a double-pole double-throw switch, and the switching unit 15 can be regarded as a modified double-pole double-throw switch, so that the structure is simple and the reliability is high.
It should be noted that, in order to switch the switching unit 15 between the first state and the second state in time, a control circuit for controlling the switching unit 15 may be separately provided in the rf circuit 10. In an embodiment of the present invention, the rf circuit may further include:
a baseband processor 16, configured to control the switching unit to operate in a first state when the current network of the terminal is the first network; and controlling the switching unit to work in a second state when the current network of the terminal is the second network.
Here, the switching state change of the switching unit 15 is controlled by a baseband processor in the radio frequency circuit, so that the structure of the radio frequency circuit is simple and the reliability of the circuit is higher.
In the embodiment of the present invention, the first transceiving channel and the second transceiving channel can respectively process the uplink signal sent by the radio frequency circuit in the first frequency band and the second frequency band, so as to improve the quality of the uplink signal, thereby further improving the uplink data transmission performance of the terminal.
The baseband processor 16 is further connected to the first transceiver unit 13 and the second transceiver unit 14, and the baseband processor 16 controls the first transceiver unit 13 and the second transceiver unit 14 to transmit and receive signals in the first frequency band and the second frequency band, respectively.
Specifically, the radio frequency circuit further includes a first front end network 17 disposed in the first transceiving channel, and a second front end network 18 disposed in the second transceiving channel:
the first front-end network 17 is configured to process signals of the first transceiving channel in the first frequency band and the second frequency band;
the second front-end network 18 is configured to process signals of the second transceiving channel on the first frequency band and the second frequency band.
The first front-end network 17 and the second front-end network 18 may process signals of the first transceiving channel and the second transceiving channel, respectively, and may perform processes such as amplification, frequency division, and combination, and impedance matching on the signals, which is not limited herein.
In a specific embodiment of the present invention, the first front-end network 17 and the second front-end network 18 respectively include a radio frequency power amplifier 171 and a radio frequency filter 172 that are connected to each other, and the radio frequency power amplifier 171 is configured to perform power amplification on signals in the first frequency band and the second frequency band; the rf filter 172 is configured to filter signals in the first frequency band and the second frequency band. In this way, the radio frequency power amplifier 171 and the radio frequency filter 172 can respectively perform power amplification and filtering on the uplink signals in the first frequency band and the second frequency band, so that the performance index of the uplink signals meets the radio frequency index requirement.
In the embodiment of the present invention, the terminal transmits uplink signals through the first antenna 11 and the second antenna 12 in the first frequency band and the second frequency band through the first transceiving channel and the second transceiving channel, and the first antenna 11 and the second antenna 12 have the capability of transceiving signals, so that the terminal can also receive downlink signals in the first frequency band and the second frequency band through the first transceiving channel and the second transceiving channel.
In an embodiment of the present invention, the rf circuit 10 may further include a first transceiving switch 19 disposed in the first transceiving channel, and a second transceiving switch 110 disposed in the second transceiving channel;
the first transceiving switch 19 is configured to control the first transceiving channel to be in a working mode of transmitting signals in the first frequency band and the second frequency band;
the second transceiving switch 110 is configured to control the second transceiving channel to be in an operating mode of transmitting signals in the first frequency band and the second frequency band.
Thus, when the terminal receives a downlink signal transmitted by the network-side device, the first transceiving switch 19 and the second transceiving switch 110 may respectively control the first transceiving channel and the second transceiving channel to be in a working mode of receiving signals in the first frequency band and the second frequency band; when the terminal transmits an uplink signal to the network side device, the first transceiving switch 19 and the second transceiving switch 110 may respectively control the first transceiving channel and the second transceiving channel to be in a working mode of transmitting a signal in the first frequency band and the second frequency band, thereby realizing timely switching of the working modes of the first transceiving channel and the second transceiving channel, and enabling the terminal to transmit and receive a signal to realize sharing of the first antenna and the second antenna.
It should be noted that, the radio frequency circuit 10 may be provided with a control unit to control the switching of the operation modes of the first transceiving switch 19 and the second transceiving switch 110. Of course, the control terminal of the first transmit/receive switch 19 and the control terminal of the second transmit/receive switch 110 may be connected to the baseband processor 16, respectively, and the baseband processor 16 may control the switching of the operation modes of the first transmit/receive switch 19 and the second transmit/receive switch 110.
In the 5G technology, two solutions are proposed to solve the problems of uplink wide area coverage and high data transmission:
in the first scheme, a Non-independent (NSA) architecture is adopted for a network architecture, that is, through a mechanism of dual connection of LTE and 5G, a data plane passes through an LTE access and a 5G access to meet a high-rate requirement, and a control plane of the 5G network passes through the LTE access to ensure uplink coverage performance;
in the second scheme, the network architecture adopts an independent (SA) architecture, that is, the control plane and the data plane of the 5G network both go away from the 5G path, and an uplink 2 × 2 Multiple Input Multiple Output (MIMO) mechanism, or a closed-loop space division multiple access (closed-loop space division multiple access) mechanism, is introduced.
Here, in order to further improve uplink wide area coverage and high data transmission capability of the terminal, the terminal may simultaneously support the two architectures through the radio frequency circuit, that is, the first frequency band may be an LTE frequency band; the second frequency band may be a 5G frequency band, such as a B1 frequency band and an n1 frequency band, a B3 frequency band and an n3 frequency band, or a B41 frequency band and an n41 frequency band, and so on. The method comprises the following specific steps:
as shown in fig. 3, the radio frequency circuit may include a baseband processor 301, an LTE modem 302, an LTE radio frequency transceiver 303, a 5G modem 304, a 5G radio frequency transceiver 305, a switch 306, two LTE/5G Power amplifiers 307(Power amplifiers, PA), two LTE/5G radio frequency filters 308, two LTE/5G transmit-receive switches 309, a first antenna 310, and a second antenna 311, wherein:
the LTE modem 302 and the LTE radio frequency transceiver 303 are connected in series between the baseband processor 301 and the switch 306, the LTE modem 302 is used for modulating and demodulating signals in an LTE frequency band, and the LTE radio frequency transceiver 303 is used for up-down frequency conversion and drive amplification of the signals in the LTE frequency band;
the 5G modem 304 and the 5G rf transceiver 305 are connected in series between the baseband processor 301 and the switch 306, the 5G modem 304 is used for modulating and demodulating the signal in the 5G frequency band, and the 5G rf transceiver 305 is used for up-down converting and driving and amplifying the signal in the 5G frequency band;
an LTE/5G power amplifier 307, an LTE/5G rf filter 308, and an LTE/5G transmit-receive switch 309 are connected in series between the switch 306 and the first antenna 310, so that a first transmit-receive channel is formed between the switch 306 and the first antenna 310;
an LTE/5G power amplifier 307, an LTE/5G radio frequency filter 308 and an LTE/5G transmit-receive switch 309 are connected in series between the switch 306 and the second antenna 311, so that a second transmit-receive channel is formed between the switch 306 and the second antenna 311;
the LTE/5G power amplifier 307 is configured to perform power amplification on signals in an LTE frequency band and a 5G frequency band, where a signal index after the power amplification of the LTE/5G power amplifier 307 should meet a radio frequency index requirement of 5G, and the radio frequency index requirement of 5G is higher, so that the radio frequency index requirement of LTE can be met while the radio frequency index requirement of 5G is met;
the LTE/5G radio frequency filter 308 is used for filtering signals outside an LTE frequency band and a 5G frequency band;
an LTE/5G transceiving switch 309 for switching a working mode in which a transceiving channel thereof receives a downlink signal and a working mode in which an uplink signal is transmitted;
the baseband processor 301 is further connected to the control end of the switch 306 and the control ends of the two LTE/5G transceiving switches 309, and the switch 306 and the two LTE/5G transceiving switches 309 are controlled by the baseband processor 301;
the above-mentioned change-over switch 306 can adopt the above-mentioned modified double-pole double-throw switch, i.e. the change-over switch 306 comprises a signal terminal a1, a signal terminal a2, a signal terminal A3, a signal terminal a4 and two connecting arms;
in addition, the LTE modem 302 is connected to the LTE/5G transmit/receive switch 309 in the first transmit/receive channel to form an NSA receive path for receiving and processing network control signals under the NSA network architecture; and, the 5G modem is connected to the LTE/5G transmit-receive switch 309 in the second transmit-receive channel, and constitutes an SA receive path that receives and processes network control signals under the SA network architecture.
The working process of the radio frequency circuit is as follows:
the terminal monitors a signaling sent by the network side equipment in a standby state (namely, a state of not receiving and sending signals);
if monitoring a signaling sent by the network side device, the baseband processor 301 demodulates the received signal, and determines that the current network is an NSA architecture network or an SA architecture network;
under the condition that the current network is an NSA architecture network, controlling a first transceiving channel and a second transceiving channel to transmit uplink signals at an LTE frequency band and a 5G frequency band respectively;
here, in the case where the current network is an NSA architecture network, the baseband processor 301 may control other components in the radio frequency circuit to perform the following operations:
controlling the LTE modem 302 and the 5G modem 304 to be turned on to generate a modulation signal of an LTE frequency band and a modulation signal of a 5G frequency band, respectively;
controlling the LTE radio frequency transceiver 303 and the 5G radio frequency transceiver 305 to start up, so as to perform up-conversion processing on the modulation signal of the LTE frequency band and the modulation signal of the 5G frequency band, respectively, and respectively form an uplink signal of the LTE frequency band and an uplink signal of the 5G frequency band;
controlling the connecting arm in the switching unit 306 to connect the signal terminal a1 with the signal terminal A3, and connect the signal terminal a2 with the signal terminal a4, so that the uplink signal of the LTE band is transmitted through the first transceiving channel, and the uplink signal of the 5G band is transmitted through the second transceiving channel; or, the signal terminal a1 is connected to the signal terminal a4, and the signal terminal a2 is connected to the signal terminal A3, so that the uplink signal of the LTE band is transmitted through the second transceiving channel, and the uplink signal of the 5G band is transmitted through the first transceiving channel;
controlling the LTE/5G power amplifier 307 to work in an LTE/5G mode, and performing power amplification on an uplink signal of a receiving and transmitting channel where the LTE/5G power amplifier 307 is located;
and controlling the LTE/5G transceiving switch 309 to work in an uplink signal transmission mode, so that the LTE/5G transceiving switch 309 transmits the signal from the antenna of the transceiving channel where the LTE/5G transceiving switch is located.
And controlling the first transceiving channel and the second transceiving channel to transmit uplink signals in an LTE frequency band or a 5G frequency band under the condition that the current network is an SA architecture network.
Here, in the case where the current network is an SA architecture network, the baseband processor 301 may control other components in the radio frequency circuit to perform the following operations:
controlling the 5G modem 304 to be turned on to generate a modulation signal of a 5G frequency band, and controlling the LTE modem 302 to be turned off to save the electric energy of the terminal;
the LTE modem 302 is controlled and controlled to carry out up-conversion processing on the modulation signal of the 5G frequency band to form an uplink signal of the 5G frequency band, and the LTE radio frequency transceiver 303 is controlled to be turned off to save the electric energy of the terminal;
controlling the connecting arm in the switching unit 306 to connect the signal terminal a2 with the signal terminal A3, and to connect the signal terminal a2 with the signal terminal a4, so that the uplink signal of the 5G band is transmitted through the first transceiving channel and the second transceiving channel;
controlling the LTE/5G power amplifier 307 to work in an LTE/5G mode, and performing power amplification on an uplink signal of a receiving and transmitting channel where the LTE/5G power amplifier 307 is located;
and controlling the LTE/5G transceiving switch 309 to work in an uplink signal transmission mode, so that the LTE/5G transceiving switch 309 transmits the signal from the antenna of the transceiving channel where the LTE/5G transceiving switch is located.
Therefore, under the condition that the current network is an NSA architecture network, the terminal can realize the function of simultaneously transmitting uplink signals through two paths of transceiving channels under the dual connection of an LTE frequency band and a 5G frequency band; and under the condition that the current network is an SA architecture network, the terminal can realize the function of simultaneously transmitting uplink signals through two paths of receiving and transmitting channels under a 5G frequency band, so that the data transmission performance of the terminal is improved.
It should be noted that, in the case that the current network is an NSA architecture network, since the control plane and the data plane of the 5G network are both taken from the 5G path, the baseband processor 301 controls the connection arm in the switching unit 306 to connect the signal terminal a2 with the signal terminal A3, and connect the signal terminal a2 with the signal terminal a4, that is, when the current network of the terminal is an SA architecture network, the radio frequency circuit transmits signals through the first transceiving channel and the second transceiving channel, respectively, in the 5G frequency band.
The radio frequency circuit of the embodiment of the invention can simultaneously transmit the uplink signal through the first transceiving channel and the second transceiving channel, thereby enhancing the capability of the terminal for transmitting the uplink signal and improving the uplink data transmission performance of the terminal. In addition, the terminal can also transmit signals through the same frequency band or different frequency bands when the first transceiving channel and the second transceiving channel simultaneously transmit uplink signals according to the current network where the terminal is located, that is, the terminal transmits uplink signals on the first frequency band and the second frequency band through the first transceiving channel and the second transceiving channel respectively when the terminal is in the first network; and when the terminal is in the second network, the terminal transmits the uplink signal on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel, so that the terminal can flexibly select the uplink signal transmitting mode, and the uplink signal transmitting capability and the uplink data transmission performance of the terminal are further enhanced.
Based on the radio frequency circuit, the embodiment of the invention also provides a terminal, which comprises the radio frequency circuit.
Since the structure of the terminal itself is well known to those skilled in the art, and the specific structure of the rf circuit is described in the above embodiments, detailed description of the terminal structure is omitted here.
In this embodiment of the present invention, the terminal may include: a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like.
Referring to fig. 4, fig. 4 is a signal transmission control method applied to the terminal according to an embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:
It should be noted that, this embodiment is taken as an implementation corresponding to the radio frequency circuit in the foregoing embodiment, and specific implementations thereof may refer to relevant descriptions of the foregoing embodiment, so that, in order to avoid repeated descriptions, the description of this embodiment is not repeated, and the same beneficial effects may also be achieved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A radio frequency circuit for a terminal, the radio frequency circuit comprising:
a first antenna and a second antenna;
the first transceiver unit is used for transmitting signals on a first frequency band, and the second transceiver unit is used for transmitting signals on a second frequency band;
the switching unit is connected with the first antenna and forms a first transceiving channel for transmitting signals on a first frequency band and a second frequency band; the second receiving and transmitting channel is connected with the second antenna and used for transmitting signals on the first frequency band and the second frequency band;
the switching unit is configured to operate in a first state when a current network of the terminal is a first network, and correspondingly communicate the first transceiving unit and the second transceiving unit with the first transceiving channel and the second transceiving channel one to one; when the current network of the terminal is a second network, the terminal works in a second state, and the first transceiving unit or the second transceiving unit is communicated with the first transceiving channel and the second transceiving channel;
the first network and the second network are different networks;
the switching unit comprises a first terminal, a second terminal, a third terminal, a fourth terminal, a first connecting arm and a second connecting arm, wherein the first terminal is connected with the first antenna; the second terminal is connected with the second antenna; the third terminal is connected with the first transceiving unit; the fourth terminal is connected with the second transceiver unit;
when the first connecting arm communicates the first terminal with the third terminal, and the second connecting arm communicates the second terminal with the fourth terminal; or when the first connecting arm communicates the second terminal with the fourth terminal and the second connecting arm communicates the first terminal with the third terminal, the switching unit works in a first state; and, when said first connecting arm communicates said first terminal with said third terminal, and said second connecting arm communicates said second terminal with said third terminal; or, when the first connecting arm communicates the first terminal and the fourth terminal, and the second connecting arm communicates the second terminal and the fourth terminal, the switching unit operates in the second state.
2. The radio frequency circuit according to claim 1, further comprising:
the baseband processor is used for controlling the switching unit to work in a first state when the current network of the terminal is the first network; and controlling the switching unit to work in a second state when the current network of the terminal is the second network.
3. The rf circuit of claim 1, further comprising a first front-end network disposed in the first transceiving channel, and a second front-end network disposed in the second transceiving channel:
the first front-end network is configured to process signals of the first transceiving channel in the first frequency band and the second frequency band;
the second front-end network is configured to process signals of the second transceiving channel in the first frequency band and the second frequency band.
4. The RF circuit of claim 3, wherein the first front-end network and the second front-end network respectively comprise an RF power amplifier and an RF filter, and the RF power amplifier is configured to power-amplify the signals in the first frequency band and the second frequency band; the radio frequency filter is configured to filter signals in the first frequency band and the second frequency band.
5. The RF circuit of claim 1, further comprising a first transceiving switch disposed in the first transceiving channel, and a second transceiving switch disposed in the second transceiving channel;
the first transceiving switch is used for controlling the first transceiving channel to be in a working mode of transmitting signals on the first frequency band and the second frequency band;
the second transceiving switch is configured to control the second transceiving channel to be in a working mode of transmitting signals in the first frequency band and the second frequency band.
6. The rf circuit of claim 1, wherein the first transceiver unit comprises a first modem operating in a first frequency band and a first rf transceiver, and wherein the first rf transceiver is connected to the first modem and the switching unit;
the second transceiver unit comprises a second modem working on a second frequency band and a second radio frequency transceiver, and the second radio frequency transceiver is connected with the second modem and the switching unit.
7. The radio frequency circuit according to claim 1, wherein the first frequency band is a long term evolution, LTE, frequency band; the second frequency band is a fifth generation mobile communication technology 5G frequency band.
8. The RF circuit of claim 7, wherein the first network is a network of a non-independent NSA architecture; the second network is a network of an independent SA architecture, and when the current network of the terminal is a network of an SA architecture, the radio frequency circuit transmits signals through the first transceiving channel and the second transceiving channel, respectively, in a 5G frequency band.
9. A terminal, characterized in that it comprises a radio frequency circuit according to any one of claims 1 to 8.
10. A signal transmission control method applied to the terminal according to claim 9, comprising:
acquiring a current network of the terminal;
under the condition that the current network of the terminal is a first network, transmitting signals on a first frequency band and a second frequency band through a first transceiving channel and a second transceiving channel respectively;
transmitting signals on the first frequency band or the second frequency band through the first transceiving channel and the second transceiving channel respectively under the condition that the current network of the terminal is a second network;
the first network and the second network are different networks.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575674.2A CN108768434B (en) | 2018-06-06 | 2018-06-06 | Radio frequency circuit, terminal and signal transmission control method |
| PCT/CN2019/086983 WO2019233253A1 (en) | 2018-06-06 | 2019-05-15 | Radio frequency circuit, terminal and signal emission control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575674.2A CN108768434B (en) | 2018-06-06 | 2018-06-06 | Radio frequency circuit, terminal and signal transmission control method |
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| Publication Number | Publication Date |
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| CN108768434A CN108768434A (en) | 2018-11-06 |
| CN108768434B true CN108768434B (en) | 2021-02-12 |
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| CN201810575674.2A Active CN108768434B (en) | 2018-06-06 | 2018-06-06 | Radio frequency circuit, terminal and signal transmission control method |
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| WO (1) | WO2019233253A1 (en) |
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| CN112152643B (en) * | 2019-06-28 | 2022-03-11 | 华为技术有限公司 | Switching circuit of antenna and electronic equipment |
| JP2021016049A (en) | 2019-07-11 | 2021-02-12 | 株式会社村田製作所 | High frequency circuit and communication device |
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| CN111211803A (en) * | 2020-01-16 | 2020-05-29 | 重庆邮电大学 | Miniaturized four-channel radio frequency transceiver |
| CN111726138B (en) * | 2020-06-05 | 2022-07-01 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN113301457A (en) * | 2020-06-09 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Photoelectric transceiver and control method thereof |
| CN113810749A (en) * | 2020-06-12 | 2021-12-17 | 深圳市万普拉斯科技有限公司 | Television tuning device and television |
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| WO2019233253A1 (en) | 2019-12-12 |
| CN108768434A (en) | 2018-11-06 |
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