CN110190860B - Radio frequency circuit and electronic equipment - Google Patents

Radio frequency circuit and electronic equipment Download PDF

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Publication number
CN110190860B
CN110190860B CN201910516869.4A CN201910516869A CN110190860B CN 110190860 B CN110190860 B CN 110190860B CN 201910516869 A CN201910516869 A CN 201910516869A CN 110190860 B CN110190860 B CN 110190860B
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China
Prior art keywords
signal stream
signal
antennas
antenna
radio frequency
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CN201910516869.4A
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CN110190860A (en
Inventor
杨怀
伏奎
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201910516869.4A priority Critical patent/CN110190860B/en
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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
    • H04B1/0064—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 separate antennas for the more than one band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/401—Circuits for selecting or indicating operating mode
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a radio frequency circuit and electronic equipment, radio frequency circuit includes: the first modem is used for processing the 4G signal stream; the second modem is used for processing the 5G signal stream; at least two first antennas for transmitting the 4G signal stream and the 5G signal stream; when at least one first antenna transmits a 4G signal stream carrying information, the at least one first antenna simultaneously transmits an empty 5G signal stream; when at least one first antenna transmits a 5G signal stream carrying information, the at least one first antenna simultaneously transmits an empty 4G signal stream; at least two second antennas for transmitting the 5G signal streams. The radio frequency circuit can transmit 5G network signals of an NSA network structure, the number of antennas of the radio frequency circuit can be reduced, the occupation of the antennas on the internal space of the electronic equipment is reduced, and therefore the internal space utilization rate of the electronic equipment can be improved.

Description

Radio frequency circuit and electronic equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency circuit and an electronic device.
Background
With The rapid development of Communication Technology, The 4th Generation Mobile Communication Technology (4G) has gradually become difficult to meet The user's requirements, especially The user's requirements for higher network speed and lower network delay. With this, The fifth Generation Mobile Communication Technology (5 th Generation Mobile Communication Technology, 5G) has gradually emerged.
Currently, in order to enable the electronic device to simultaneously support the transmission of 4G network signals and the transmission of 5G network signals, a plurality of independent antennas need to be set for the 4G network in the electronic device, and a plurality of independent antennas need to be set for the 5G network, so that a large layout space inside the electronic device needs to be occupied, and the space inside the electronic device is not utilized.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit and electronic equipment, which can improve the space utilization rate inside the electronic equipment.
The embodiment of the present application provides a radio frequency circuit, radio frequency circuit is used for transmitting the non-independent 5G network signal of network deployment of first SIM card, 5G network signal includes 4G signal flow and 5G signal flow, radio frequency circuit includes:
the first modem is used for processing the 4G signal stream;
the second modem is used for processing the 5G signal stream;
at least two first antennas connected to the first modem and the second modem, the at least two first antennas being used for transmitting the 4G signal stream and the 5G signal stream; wherein
When at least one first antenna transmits a 4G signal stream carrying information, the at least one first antenna simultaneously transmits an empty 5G signal stream;
when at least one first antenna transmits a 5G signal stream carrying information, the at least one first antenna simultaneously transmits an empty 4G signal stream;
at least two second antennas connected to the second modem, the at least two second antennas being used for transmitting the 5G signal stream.
An embodiment of the present application further provides an electronic device, including:
a housing;
a first SIM card mounted inside the housing;
a second SIM card mounted inside the housing;
the circuit board is installed inside the shell, and a radio frequency circuit is arranged on the circuit board and comprises the radio frequency circuit.
When the radio frequency circuit provided by the embodiment of the application transmits a 5G network signal of an NSA network architecture, at least two first antennas of the radio frequency circuit can transmit a 4G signal stream and a 5G signal stream, wherein in the at least two first antennas, the signal stream transmitted by at least one antenna carries information, and the signal stream transmitted by at least another antenna does not carry information, so that the transmission of the 4G signal stream and the transmission of the 5G signal stream can realize the sharing of the at least two first antennas, and thus the radio frequency circuit can realize the transmission of the 5G network signal of the NSA network architecture, can reduce the number of antennas of the radio frequency circuit, can reduce the occupation of the antennas on the internal space of the electronic device, and can improve the space utilization rate inside the electronic device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
FIG. 2 is a cross-sectional view of the electronic device shown in FIG. 1 taken along the direction P1-P1.
Fig. 3 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present disclosure.
Fig. 4 is a schematic diagram of a first signal transmission in the rf circuit according to the embodiment of the present disclosure.
Fig. 5 is a schematic diagram of second signal transmission in the rf circuit according to the embodiment of the present application.
Fig. 6 is a schematic diagram of a second structure of the rf circuit according to the embodiment of the present disclosure.
Fig. 7 is a schematic diagram of third signal transmission in the rf circuit according to the embodiment of the present application.
Fig. 8 is a schematic diagram of a third structure of a radio frequency circuit according to an embodiment of the present application.
Fig. 9 is a schematic diagram of a fourth structure of a radio frequency circuit according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
The embodiment of the application provides electronic equipment. The electronic device may be a smart phone, a tablet computer, or other devices, and may also be a game device, an AR (Augmented Reality) device, an automobile device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or other devices.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, and fig. 2 is a cross-sectional view of the electronic device shown in fig. 1 along a direction P1-P1.
The electronic device 100 includes a display 101, a cover plate 102, a middle frame 103, a circuit board 104, a battery 105, a rear cover 106, a first SIM card (SIM) 107, and a second SIM card 108.
The display screen 101 is mounted on the middle frame 103 to form a display surface of the electronic apparatus 100 for displaying information such as images, text, and the like. The Display screen 101 may include a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.
The cover plate 102 is mounted on the middle frame 103, and the cover plate 102 covers the display screen 101 to protect the display screen 101 from being scratched or damaged by water. The cover 102 may be a transparent glass cover, so that a user can see the contents displayed on the display 101 through the cover 102. It is understood, however, that the cover plate 102 may be a glass cover plate of sapphire material.
The middle frame 103 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 103 is used for providing a supporting function for the electronic elements or functional components in the electronic device 100, so as to mount the electronic elements or functional components in the electronic device 100 together.
The middle frame 103 and the rear cover 106 may together form a housing of the electronic device 100, for accommodating or mounting electronic elements, functional components, and the like of the electronic device. For example, the display screen 101 may be mounted on the housing. In addition, functional components of the electronic apparatus, such as a camera, a receiver, a circuit board, and a battery, may be mounted on the center frame 103 to be fixed. It is understood that the material of the middle frame 103 may include metal or plastic.
The circuit board 104 is mounted inside a housing formed by the middle frame 103 and the rear cover 106 together. For example, the circuit board 104 may be mounted on the middle frame 103. The circuit board 104 may be a motherboard of the electronic device 100. Wherein, the circuit board 104 is provided with a radio frequency circuit. The radio frequency circuitry is used to enable wireless communication between the electronic device 100 and a base station or other electronic device. The radio frequency circuit will be described in detail below. In addition, one or more of a microphone, a speaker, a receiver, an earphone interface, a camera, an acceleration sensor, a gyroscope, a processor, and other functional components may be integrated on the circuit board 104. Meanwhile, the display screen 101 may be electrically connected to the circuit board 104 to control display of the display screen 101 by a processor on the circuit board 104.
The battery 105 is mounted inside a casing formed by the middle frame 103 and the rear cover 106 together. For example, the battery 105 may be mounted on the middle frame 103. Meanwhile, the battery 105 is electrically connected to the circuit board 104 to enable the battery 105 to supply power to the electronic device 100. The circuit board 104 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 105 to the various electronic components in the electronic device 100.
The rear cover 106 may be integrally formed. In the molding process of the rear cover 106, a rear camera hole or the like may be formed in the rear cover 106.
The first SIM card 107 is mounted inside the casing formed by the middle frame 103 and the rear cover 106 together. For example, the first SIM card 107 is mounted on the middle frame 103. The first SIM card 107 may serve as an information storage for storing identification information of the user, such as a telephone number for representing the identity of the user. In addition, the first SIM card 107 may also be used to store personal information of the user, such as a key used to encrypt voice contents at the time of a voice call, a phone book of the user, and the like. Among them, the SIM card is also called a subscriber identity card, a smart card, and the like.
It should be noted that, after the first SIM card 107 is installed on the electronic device 100, the electronic device 100 can communicate with a base station or other electronic devices through the information stored on the first SIM card 107.
A second SIM card 108 is also mounted inside the casing formed by the middle frame 103 and the back cover 106 together. For example, a second SIM card 108 is also mounted on the middle frame 103. The second SIM card may also serve as an information storage for storing identification information of the user, personal information of the user, and the like.
Wherein the subscriber identity information stored on the second SIM card 108 is different from the subscriber identity information stored on the first SIM card 107. For example, a first SIM card 107 stores first identification information of the user, such as a first telephone number for indicating the identity of the user, and a second SIM card 108 stores second identification information of the user, such as a second telephone number for indicating the identity of the user. In addition, the user personal information stored on the second SIM card 108 may be the same as or partially the same as or different from the user personal information stored on the first SIM card 107.
It should be noted that, after the second SIM card 108 is installed on the electronic device 100, the electronic device 100 can communicate with a base station or other electronic devices through the information stored on the second SIM card 108.
In the embodiment of the present application, the circuit board 104 is provided with a radio frequency circuit 200. The rf circuit 200 is used to enable wireless communication between the electronic device 100 and a base station or other electronic devices. It is understood that the rf circuit 200 may be used to transmit both 4G network signals and 5G network signals.
In the process of constructing the 5G network, according to the requirement of the communication protocol, a 5G network architecture of an independent networking (SA) or a 5G network architecture of a Non-independent Networking (NSA) may be adopted. In the 5G network architecture of NSA, it is necessary to transmit a 5G network signal and a 4G network signal at the same time. That is, in the 5G network architecture of NSA, 5G network signals include 4G signal streams and 5G signal streams.
The radio frequency circuit 200 according to the embodiment of the present application may be used to transmit a non-independent 5G network signal. For example, the radio frequency circuit 200 may be used to transmit 5G network signals of the NSA network architecture of the first SIM card 107. It is understood that the 5G network signal of the first SIM card 107 refers to a network signal when the electronic device 100 wirelessly communicates with a base station or other electronic devices through the information stored in the first SIM card 107 by using a fifth generation mobile communication technology.
Referring to fig. 3, fig. 3 is a schematic diagram of a first structure of a radio frequency circuit 200 according to an embodiment of the present disclosure.
The radio frequency circuit 200 comprises a baseband circuit 201, a first modem 202, a second modem 203, at least two first splitters 204, at least two first antennas 205 and at least two second antennas 206.
It should be noted that, although fig. 3 shows the rf circuit 200 including two first splitters 204, two first antennas 205, and two second antennas 206, the application is not limited thereto. The rf circuit 200 may also comprise other numbers of first splitters 204, first antennas 205 and second antennas 206, for example 3, 4, etc.
The baseband circuit 201 is configured to process communication data of the radio frequency circuit 200, and control an operating state of each device in the radio frequency circuit 200 according to interaction information with a base station or a network server. It is understood that the baseband circuit 201 may be integrated into the processor of the electronic device 100, or may be independent of a separate processing circuit or processing chip.
The first modem 202 is connected to the baseband circuit 201. The first modem 202 is used for processing 4G radio frequency signals. For example, the first modem 202 may modulate upstream signals passing through the first modem 202 and demodulate downstream signals passing through the first modem 202.
A second modem 203 is connected to the baseband circuitry 201. The second modem 203 is used for processing the 5G radio frequency signal. For example, the second modem 203 may modulate upstream signals passing through the second modem 203 and demodulate downstream signals passing through the second modem 203.
It can be understood that, when the radio frequency circuit 200 transmits a 5G network signal of an NSA network architecture, since the 5G network signal includes a 4G signal stream and a 5G signal stream, the first modem 202 may be configured to process the 4G signal stream, and the second modem 203 may be configured to process the 5G signal stream.
It is understood that the uplink signal refers to a radio frequency signal transmitted by the radio frequency circuit 200 to the outside through the antenna, and the downlink signal refers to a radio frequency signal received by the radio frequency circuit 200 from the outside through the antenna.
At least two first splitters 204, each first splitter 204 is connected to the first modem 202 and the second modem 203 simultaneously. The first splitter 204 is configured to combine and split the radio frequency signal. That is, the first splitter 204 may be configured to combine two uplink signals into one uplink signal, and to split one downlink signal into two downlink signals.
The first splitter 204 may be a frequency divider, a multiplexer, or the like. The multiplexer may include a duplexer, a quadplexer, a hexaplexer, and the like.
It will be appreciated that the first splitter 204 may also be replaced by a high frequency switch. For example, the first splitter 204 may be replaced by a Thin Film Transistor (TFT), through which the first splitter 204 is switched between turning on the first modem 202 and turning on the second modem 203.
At least two first antennas 205, each first antenna 205 being connected to the first modem 202 and the second modem 203. The at least two first antennas 205 are used for transmitting the 4G signal stream and the 5G signal stream of the 5G network signal. Wherein the transmitting the 4G signal stream and the 5G signal stream comprises: transmitting a 4G signal stream, receiving a 4G signal stream, transmitting and receiving a 4G signal stream, transmitting a 5G signal stream, receiving a 5G signal stream, transmitting and receiving a 5G signal stream. For example, of the at least two first antennas 205, one first antenna 205 may be used for transmitting and receiving 4G signal streams, and another first antenna 205 may be used for receiving 5G signal streams. Alternatively, one first antenna 205 of the at least two first antennas 205 may be used for transmitting and receiving 4G signal streams, and another first antenna 205 may be used for transmitting and receiving 5G signal streams.
It is to be understood that each of the first splitters 204 can be simultaneously connected to the first modem 202, the second modem 203 and one of the first antennas 205, so as to connect each of the first antennas 205 to the first modem 202 and the second modem 203.
It should be noted that the 4G signal stream or the 5G signal stream transmitted by each of the first antennas 205 may or may not carry information. The information-carrying signal stream may be understood as the communication content of the user mixed in the modulation process of the signal stream. A signal stream that does not carry information may be understood as a null signal stream, i.e. a signal stream that is not mixed into the communication content of the user during modulation, or a signal stream that is not modulated.
Wherein, when at least one of the first antennas 205 transmits a 4G signal stream carrying information, the at least one first antenna 205 simultaneously transmits an empty 5G signal stream. When at least one of the first antennas 205 transmits a 5G signal stream carrying information, the at least one first antenna 205 simultaneously transmits an empty 4G signal stream. That is, in the at least two first antennas 205, at least one transmitted signal stream carries information, and at least another transmitted signal stream does not carry information, and the signal stream that does not carry information is an empty signal stream. Therefore, when each of the first antennas 205 simultaneously transmits a 4G signal stream and a 5G signal stream, the transmitted signal streams can be prevented from affecting each other.
At least two second antennas 206, each second antenna 206 being connected to the second modem 203. The at least two second antennas 206 are used for transmitting 5G signal streams of the 5G network signal. Wherein the transmitting the 5G signal stream comprises: transmit 5G signal streams, receive 5G signal streams, transmit and receive 5G signal streams. For example, one second antenna 206 of the at least two second antennas 206 may be used for transmitting and receiving 5G signal streams, and another second antenna 206 may be used for receiving 5G signal streams. The 5G signal stream transmitted by each of the second antennas 206 carries information, that is, a signal stream that is not null.
In the radio frequency circuit 200, the transmission process of the uplink signal is as follows:
the baseband circuit 201 processes a 4G signal stream and a 5G signal stream of a 5G network signal that needs to be transmitted to the external first SIM card, and then transmits the processed 4G signal stream to the first modem 202 for modulation, and transmits the processed 5G signal stream to the second modem 203 for modulation.
The first modem 202 modulates the 4G signal stream, transmits the modulated 4G signal stream to a first splitter 204, transmits the modulated 4G signal stream to a first antenna 205 connected to the first splitter 204 via the first splitter 204, and transmits the modulated 4G signal stream to the outside through the first antenna 205.
The second modem 203 modulates the 5G signal stream, transmits the modulated 5G signal stream to a second antenna 206, and transmits the modulated 5G signal stream to the outside through the second antenna 206. Alternatively, the second modem 203 modulates the 5G signal stream, transmits the modulated 5G signal stream to a first splitter 204, transmits the modulated 5G signal stream to a first antenna 205 connected to the first splitter 204 via the first splitter 204, and transmits the modulated 5G signal stream to the outside through the first antenna 205.
In the rf circuit 200, the transmission process of the downlink signal is as follows:
after receiving the 4G signal stream and the 5G signal stream from the outside, the first antenna 205 transmits the received 4G signal stream and 5G signal stream to the first splitter 204 connected to the first antenna 205 for splitting, and then transmits the split 4G signal stream to the first modem 202 for demodulation, and transmits the split 5G signal stream to the second modem 203 for demodulation.
The second antenna 206 receives the 5G signal stream from the outside, and transmits the received 5G signal stream to the second modem 203 for demodulation.
After receiving the downlink 4G signal stream, the first modem 202 demodulates the downlink 4G signal stream, and transmits the demodulated 4G signal stream to the baseband circuit 201 for processing.
After receiving the downlink 5G signal stream, the second modem 203 demodulates the downlink 5G signal stream, and transmits the demodulated 5G signal stream to the baseband circuit 201 for processing.
It is particularly pointed out that it is currently in the construction and development stage of 5G networks. 5G networks have specificity with respect to 4G networks.
Depending on the requirements of the communication protocol, a complete 4G network communication link requires at least 2 antennas to implement, and a complete 5G network communication link requires at least 4 antennas to implement. In a communication link formed by at least 4 antennas of a 5G network, it is necessary to maintain one antenna to implement SRS (Sounding Reference Signal) communication between an electronic device and a base station. The uplink sounding reference signal is also referred to as a channel sounding reference signal. That is, in a 5G network communication link between an electronic device and a base station, it is necessary to keep an antenna transmitting SRS signals to the base station, and the base station evaluates the quality of downlink channels between the base station and the electronic device through the received SRS signals, thereby facilitating the resource allocation of the downlink channels between the base station and the electronic device. However, according to the requirements of the communication protocol, the SRS signal needs to be switched between at least 4 antennas of the 5G network communication link. That is, the electronic device sequentially transmits the SRS signal to the base station in a time division manner through each of the at least 4 antennas of the 5G network communication link. The SRS signal does not carry communication content of communication between the user and other users, and is only used for the base station to evaluate the quality of the downlink channel.
In the radio frequency circuit 200, the SRS signals may be switched between the at least two first antennas 205 and the at least two second antennas 206. That is, sequentially, the SRS signal is transmitted to the base station through one of the at least two first antennas 205 and the at least two second antennas 206 in a time division manner, and the other of the at least two first antennas 205 and the at least two second antennas 206 enables the communication content of the user to be transmitted between the electronic device and the base station.
In this application, when the radio frequency circuit 200 transmits a 5G network signal of an NSA network architecture, the at least two first antennas 205 of the radio frequency circuit 200 may transmit both a 4G signal stream and a 5G signal stream, where in the at least two first antennas 205, a signal stream transmitted by at least one antenna carries information, and a signal stream transmitted by at least another antenna does not carry information, so that the transmission of the 4G signal stream and the transmission of the 5G signal stream may implement sharing of the at least two first antennas 205. Therefore, the radio frequency circuit 200 of the present application can not only realize transmission of 5G network signals of the NSA network architecture, but also reduce the number of antennas of the radio frequency circuit 200, and reduce the occupation of the antennas on the internal space of the electronic device 100, thereby improving the internal space utilization of the electronic device.
Referring to fig. 4, fig. 4 is a schematic diagram of a first signal transmission in the rf circuit 200 according to the embodiment of the present disclosure. Among them, at least one of the at least two first antennas 205 in common is used for transmitting and receiving a 4G signal stream and receiving a 5G signal stream, and at least another one is used for receiving the 4G signal stream and the 5G signal stream.
Wherein the at least two first antennas 205 comprise a first main set antenna and a first diversity antenna. The first primary set of antennas is configured to transmit and receive the 4G signal streams and to receive the 5G signal streams, so as to implement primary set transceiving of the 4G signal streams and diversity reception of the 5G signal streams. The first diversity antenna is configured to receive the 4G signal stream and to receive the 5G signal stream, so as to implement diversity reception of the 4G signal stream and diversity reception of the 5G signal stream.
It should be noted that only one antenna is needed for the first main set antenna to achieve simultaneous transmission and reception of the 4G signal streams. The first diversity antenna may include a plurality of antennas, thereby implementing MIMO (Multiple-Input Multiple-Output) reception of the 4G signal streams and the 5G signal streams.
The at least two second antennas 206 include a second main set antenna and a second diversity antenna. The second main set antenna is used for transmitting and receiving the 5G signal stream so as to realize main set transceiving of the 5G signal stream. The second diversity antenna is configured to receive the 5G signal stream to implement diversity reception of the 5G signal stream.
It should be noted that only one antenna is needed for the second main set antenna to achieve simultaneous transmission and reception of the 5G signal streams. The second diversity antenna may include a plurality of antennas to enable MIMO reception of the 5G signal streams.
Thus, the radio frequency circuit 200 may implement both the main set transceiving and diversity reception of the 4G signal stream in the 5G network signal of the first SIM card and the main set transceiving and diversity MIMO reception of the 5G signal stream in the 5G network signal of the first SIM card, and may implement the sharing of at least two first antennas 205.
Wherein, as can be understood, when the first main set antenna is used for transmitting and receiving the 4G signal streams and for receiving the 5G signal streams, when the first main set antenna transmits or receives the 4G signal streams carrying information, the first main set antenna also receives empty 5G signal streams, so as to avoid mutual influence between the 4G signal streams transmitted or received by the first main set antenna and the received 5G signal streams. When the first diversity antenna is configured to receive the 4G signal stream and to receive the 5G signal stream, the first diversity antenna receives a null 4G signal stream and receives a 5G signal stream carrying information, so as to avoid mutual influence between the 4G signal stream received by the first diversity antenna and the received 5G signal stream. And through the cooperation between the first main set antenna and the first diversity antenna, the 4G signal carrying information and the 5G signal stream carrying information can be transmitted simultaneously, and the communication interruption of the 4G signal stream and the communication interruption of the 5G signal stream cannot be caused.
When the first main set antenna is used for transmitting and receiving the 4G signal stream and for receiving the 5G signal stream, and when the first main set antenna receives the 5G signal stream carrying information, the first main set antenna also transmits or receives a null 4G signal stream, so as to avoid mutual influence between the 5G signal stream received by the first main set antenna and the transmitted or received 4G signal stream. When the first diversity antenna is configured to receive the 4G signal stream and to receive the 5G signal stream, the first diversity antenna receives a null 5G signal stream and receives an information-carrying 4G signal stream, so as to avoid mutual influence between the 5G signal stream received by the first diversity antenna and the received 4G signal stream. And through the cooperation between the first main set antenna and the first diversity antenna, the 4G signal carrying information and the 5G signal stream carrying information can be transmitted simultaneously, and the communication interruption of the 4G signal stream and the communication interruption of the 5G signal stream cannot be caused.
Furthermore, it is understood that the at least two first antennas 205 may also be used for transmitting a 5G signal stream in the 5G network signal of the first SIM card. Referring to fig. 5, fig. 5 is a schematic diagram illustrating a second signal transmission in the rf circuit 200 according to the embodiment of the present disclosure. Among them, at least one of the at least two first antennas 205 in common is used for transmitting and receiving a 4G signal stream and receiving a 5G signal stream, and at least another one is used for transmitting and receiving a 5G signal stream and receiving a 4G signal stream.
Wherein the at least two first antennas 205 comprise a third dominant set antenna and a fourth dominant set antenna. The third main set antenna is used for transmitting and receiving the 4G signal stream and receiving the 5G signal stream so as to realize main set transceiving of the 4G signal stream and diversity reception of the 5G signal stream. The fourth primary set antenna is configured to transmit and receive the 5G signal streams and to receive the 4G signal streams, so as to implement primary set transceiving of the 5G signal streams and diversity reception of the 4G signal streams.
It should be noted that only one antenna is needed for the third main set antenna to achieve simultaneous transmission and reception of the 4G signal streams, and only one antenna is needed for the fourth main set antenna to achieve simultaneous transmission and reception of the 5G signal streams.
The at least two second antennas 206 include a third diversity antenna. The third diversity antenna is configured to receive the 5G signal stream to implement diversity reception of the 5G signal stream.
It should be noted that the third diversity antenna includes multiple antennas, so that MIMO reception of the 5G signal stream can be achieved.
Thus, the radio frequency circuit 200 may implement both the main set transceiving and diversity reception of the 4G signal stream in the 5G network signal of the first SIM card and the main set transceiving and diversity MIMO reception of the 5G signal stream in the 5G network signal of the first SIM card, and may implement the sharing of at least two first antennas 205.
Wherein, it can be understood that, when the third dominant set antenna is used for transmitting and receiving the 4G signal streams and for receiving the 5G signal streams, when the third dominant set antenna transmits or receives the 4G signal streams carrying information, the third dominant set antenna also receives empty 5G signal streams, so as to avoid mutual influence between the 4G signal streams transmitted or received by the third dominant set antenna and the received 5G signal streams. And when the fourth main set antenna is used for transmitting and receiving the 5G signal stream and receiving the 4G signal stream, the fourth main set antenna receives a null 4G signal stream and transmits or receives a 5G signal stream carrying information, so as to avoid mutual influence between the 5G signal stream transmitted and received by the fourth main set antenna and the received 4G signal stream. And through the cooperation between the third main set antenna and the fourth main set antenna, the 4G signal carrying information and the 5G signal stream carrying information can be transmitted simultaneously, and communication interruption of the 4G signal stream and communication interruption of the 5G signal stream cannot be caused.
When the third main set antenna is used for transmitting and receiving the 4G signal stream and for receiving the 5G signal stream, and when the third main set antenna receives the 5G signal stream carrying information, the third main set antenna also transmits or receives an empty 4G signal stream, so as to avoid mutual influence between the 5G signal stream received by the third main set antenna and the transmitted or received 4G signal stream. When the fourth primary set antenna is used for transmitting and receiving the 5G signal stream and for receiving the 4G signal stream, the fourth primary set antenna transmits or receives an empty 5G signal stream and receives an information-carrying 4G signal stream, so as to avoid mutual influence between the 4G signal stream received by the fourth primary set antenna and the transmitted and received 5G signal stream. And through the cooperation between the third main set antenna and the fourth main set antenna, the 4G signal carrying information and the 5G signal stream carrying information can be transmitted simultaneously, and communication interruption of the 4G signal stream and communication interruption of the 5G signal stream cannot be caused.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating a second structure of the rf circuit 200 according to the embodiment of the present disclosure.
Wherein, it is understood that the at least two second antennas 206 may also be connected with the first modem 202. That is, each of the at least two second antennas 206 is connected to the first modem 202. Thus, the at least two second antennas 206 may also be used for transmitting 4G signal streams in the 5G network signals of the first SIM card. For example, the at least two second antennas 206 may be used to receive the 4G signal streams to enable MIMO reception of the 4G signal streams.
It is understood that each of the second antennas 206 may carry information in one signal stream and not carry information in the other signal stream when simultaneously transmitting the 4G signal stream and the 5G signal stream in the 5G network signal of the first SIM card, so as to avoid mutual influence between the simultaneously transmitted 4G signal stream and the 5G signal stream. For example, when each of the second antennas 206 transmits a 4G signal stream carrying information, it may simultaneously transmit a 5G signal stream not carrying information, that is, simultaneously transmit a 4G signal stream carrying information and a null 5G signal stream. For another example, when each of the second antennas 206 transmits a 5G signal stream carrying information, it may simultaneously transmit a 4G signal stream not carrying information, that is, simultaneously transmit a 5G signal stream carrying information and a null 4G signal stream.
Wherein, the rf circuit 200 may further include at least two second splitters 207. Each of the second splitters 207 is connected to the first modem 202, the second modem 203 and one of the second antennas 206, so that each of the second antennas 206 is simultaneously connected to the first modem 202 and the second modem 203.
The second splitter 207 may be a frequency divider, a multiplexer, or the like. The multiplexer may include a duplexer, a quadplexer, a hexaplexer, and the like.
It is understood that the radio frequency circuit 200 may also be used to transmit 4G network signals of the second SIM card 108 of the electronic device 100. For example, the rf circuit 200 may be configured to receive a 4G network networking signal of the second SIM card 108. It is understood that the 4G network signal of the second SIM card 108 refers to a network signal when the electronic device 100 wirelessly communicates with a base station or other electronic devices by using the fourth generation mobile communication technology through the information stored in the second SIM card 108, for example, a network injection signal transmitted between the electronic device 100 and the base station by using the fourth generation mobile communication technology through the information stored in the second SIM card 108.
Referring to fig. 6 and fig. 7 together, fig. 7 is a schematic diagram of third signal transmission in the rf circuit 200 according to the embodiment of the present application.
Wherein the at least two second antennas 206 are further connected to the first modem 202. The at least two second antennas 206 are also used for transmitting 4G signal streams in the 5G network signals of the first SIM card. That is, the at least two second antennas 205 and 206 are both used for transmitting 4G signal streams and 5G signal streams in the 5G network signals of the first SIM card. Or, in other words, at least four antennas are used to transmit the 4G signal stream and the 5G signal stream.
When the radio frequency circuit 200 transmits the 4G network signal of the second SIM card, at least two third antennas which are not in a transmission state are determined from the at least two first antennas 205 and the at least two second antennas 206, and the 4G network signal of the second SIM card is transmitted through the at least two third antennas. That is, at least two third antennas which are not in a transmitting state are determined from the at least four antennas, and the 4G network signals of the second SIM card are transmitted through the at least two third antennas.
Wherein the at least two third antennas not in a transmitting state means that the at least two third antennas are not in a state of transmitting a 4G signal stream nor in a state of transmitting a 5G signal stream. It should be noted that the at least two third antennas may be in a state of receiving a 4G signal stream, may also be in a state of receiving a 5G signal stream, and may also be in an idle state, that is, neither in a transmitting state nor in a receiving state.
It is understood that, in addition to the third antenna, among other antennas of the at least two first antennas 205 and the at least two second antennas 206, a 4G signal stream of the 5G network signal of the first SIM card may be transmitted and received through one antenna, and a 5G signal stream may be received, and the 5G signal stream may be transmitted and received through another antenna, and a 4G signal stream may be received.
When the radio frequency circuit 200 transmits the 4G network signal of the second SIM card, it is detected whether the at least two third antennas are in a state of transmitting a 4G signal stream in the 5G network signal of the first SIM card. If the at least two third antennas are in a state of transmitting 4G signal streams in the 5G network signals of the first SIM card, the transmission of the 4G signal streams on the at least two third antennas is interrupted, and the 4G network signals of the second SIM card are transmitted through the at least two third antennas, so as to avoid mutual influence between the 4G signal streams in the 5G network signals of the first SIM card and the 4G network signals of the second SIM card.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating a third structure of a radio frequency circuit 200 according to an embodiment of the present disclosure.
The rf circuit 200 further includes a control circuit 208. The control circuit 208 is coupled to the first modem 202.
The control circuit 208 is configured to control the first modem 202 to interrupt processing of a 4G signal stream in a 5G network signal of the first SIM card when processing a 4G network signal of the second SIM card, so as to control the at least two third antennas to interrupt transmission of the 4G signal stream in the 5G network signal of the first SIM card on the at least two third antennas when transmitting the 4G network signal of the second SIM card. Thus, the control circuit 208 can switch the at least two third antennas between 4G signal streams in the 4G network signal transmitting the second SIM card and the 5G network signal transmitting the first SIM card by controlling the first modem 202.
Referring to fig. 9, fig. 9 is a schematic diagram illustrating a fourth structure of the rf circuit 200 according to the embodiment of the present disclosure.
The rf circuit 200 further includes a first rf transceiver module 209 and a second rf transceiver module 210.
The first rf transceiver module 209 is connected to the first modem 202, the at least two first antennas 205, and the at least two second antennas 206. The first rf transceiver module 209 is used for transmitting and receiving 4G rf signals. For example, the first radio frequency transceiver module 209 may be configured to transmit and receive a 4G signal stream in a 5G network signal of the first SIM card, and may also be configured to transmit and receive a 4G network signal of the second SIM card.
It is understood that the first rf transceiver module 209 may be connected to each of the first antennas 205 through the first splitter 204, and connected to each of the second antennas 206 through the second splitter 207.
The first rf transceiver module 209 may be disposed thereon with a plurality of rf transmitting ports and a plurality of rf receiving ports. Each rf transmit port is connected to an antenna. Each radio frequency transmitting port is used for transmitting 4G radio frequency signals to an antenna connected with the radio frequency transmitting port and transmitting the signals to the outside through the antenna. Each radio frequency receiving port is connected with an antenna. Each radio frequency receiving port is used for acquiring 4G radio frequency signals received by an antenna connected with the radio frequency receiving port from the outside. It should be noted that the radio frequency transmitting port and the radio frequency receiving port may be commonly connected to the same antenna, so as to simultaneously transmit and receive the 4G radio frequency signal through the antenna.
The second rf transceiver module 210 is connected to the second modem 203, the at least two first antennas 205, and the at least two second antennas 206. The second rf transceiver module 210 is used for transmitting and receiving 5G rf signals. For example, the second radio frequency transceiver module 210 may be configured to transmit and receive a 5G signal stream in a 5G network signal of the first SIM card.
It is understood that the second rf transceiver module 210 may be connected to each of the first antennas 205 through the first splitter 204, and connected to each of the second antennas 206 through the second splitter 207.
The second rf transceiver module 210 may also be provided with a plurality of rf transmitting ports and a plurality of rf receiving ports. Each rf transmit port is connected to an antenna. Each radio frequency transmitting port is used for transmitting 5G radio frequency signals to an antenna connected with the radio frequency transmitting port and transmitting the signals to the outside through the antenna. Each radio frequency receiving port is connected with an antenna. Each radio frequency receiving port is used for acquiring 5G radio frequency signals received by an antenna connected with the radio frequency receiving port from the outside. It should be noted that the radio frequency transmitting port and the radio frequency receiving port may be commonly connected to the same antenna, so as to simultaneously transmit and receive the 5G radio frequency signal through the antenna.
In the description of the present application, it is to be understood that terms such as "first", "second", and the like are used merely to distinguish one similar element from another, and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated.
The radio frequency circuit and the electronic device provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, 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 application.

Claims (12)

1. A radio frequency circuit configured to transmit non-independently networked 5G network signals of a first SIM card, the 5G network signals including a 4G signal stream and a 5G signal stream, the radio frequency circuit comprising:
the first modem is used for processing the 4G signal stream;
the second modem is used for processing the 5G signal stream;
at least two first antennas connected to the first modem and the second modem, the at least two first antennas being used for transmitting the 4G signal stream and the 5G signal stream; wherein
When at least one first antenna transmits a 4G signal stream carrying information, the at least one first antenna simultaneously transmits an empty 5G signal stream, and the empty 5G signal stream is a signal stream not carrying information, so as to avoid the mutual influence of the transmitted 4G signal stream and the 5G signal stream;
when at least one first antenna transmits a 5G signal stream carrying information, the at least one first antenna simultaneously transmits an empty 4G signal stream, and the empty 4G signal stream is a signal stream not carrying information, so as to avoid the mutual influence of the transmitted 4G signal stream and the 5G signal stream;
at least two second antennas connected to the second modem, the at least two second antennas being used for transmitting the 5G signal stream.
2. The radio frequency circuit of claim 1, wherein:
the at least two first antennas include a first main set antenna for transmitting and receiving the 4G signal streams and for receiving the 5G signal streams and a first diversity antenna for receiving the 4G signal streams and for receiving the 5G signal streams;
the at least two second antennas include a second main set antenna for transmitting and receiving the 5G signal streams and a second diversity antenna for receiving the 5G signal streams.
3. The radio frequency circuit of claim 2, wherein:
when the first main set antenna transmits or receives a 4G signal stream carrying information, the first main set antenna also receives a null 5G signal stream, and the first diversity antenna receives a null 4G signal stream and receives a 5G signal stream carrying information;
when the first main set antenna receives the 5G signal stream carrying information, the first main set antenna also transmits or receives a null 4G signal stream, and the first diversity antenna receives the null 5G signal stream and receives the 4G signal stream carrying information.
4. The radio frequency circuit of claim 1, wherein:
the at least two first antennas include a third dominant set antenna for transmitting and receiving the 4G signal streams and for receiving the 5G signal streams and a fourth dominant set antenna for transmitting and receiving the 5G signal streams and for receiving the 4G signal streams;
the at least two second antennas include a third diversity antenna for receiving the 5G signal stream.
5. The radio frequency circuit of claim 4, wherein:
when the third main set antenna transmits or receives a 4G signal stream carrying information, the third main set antenna also receives a null 5G signal stream, and the fourth main set antenna receives a null 4G signal stream and transmits or receives a 5G signal stream carrying information;
when the third main set antenna receives the 5G signal stream carrying information, the third main set antenna also transmits or receives an empty 4G signal stream, and the fourth main set antenna transmits or receives the empty 5G signal stream and receives the 4G signal stream carrying information.
6. The radio frequency circuit according to any one of claims 1 to 5, further comprising:
at least two first splitters, each said first splitter being connected to said first modem, said second modem and one said first antenna.
7. The radio frequency circuit according to any one of claims 1 to 5, wherein:
the at least two second antennas are further connected to the first modem, and the at least two second antennas are further configured to transmit the 4G signal stream.
8. The radio frequency circuit of claim 7, further comprising:
at least two second splitters, each said second splitter being connected to said first modem, said second modem and one said second antenna.
9. The RF circuit according to any of claims 1 to 5, further configured to transmit 4G network signals of a second SIM card.
10. The radio frequency circuit of claim 9, wherein:
the at least two second antennas are further connected with the first modem, and the at least two second antennas are further used for transmitting 4G signal streams in 5G network signals of the first SIM card;
when the radio frequency circuit transmits the 4G network signals of the second SIM card, at least two third antennas which are not in a transmitting state are determined from the at least two first antennas and the at least two second antennas, and the 4G network signals of the second SIM card are transmitted through the at least two third antennas.
11. The radio frequency circuit of claim 10, wherein:
when the radio frequency circuit transmits the 4G network signals of the second SIM card, detecting whether the at least two third antennas are in a state of transmitting 4G signal streams in the 5G network signals of the first SIM card;
and if the at least two third antennas are in a state of transmitting 4G signal streams in the 5G network signals of the first SIM card, interrupting the transmission of the 4G signal streams, and transmitting the 4G network signals of the second SIM card.
12. An electronic device, comprising:
a housing;
a first SIM card mounted inside the housing;
a second SIM card mounted inside the housing;
a circuit board mounted inside the housing, the circuit board having a radio frequency circuit disposed thereon, the radio frequency circuit comprising the radio frequency circuit of any one of claims 1 to 11.
CN201910516869.4A 2019-06-14 2019-06-14 Radio frequency circuit and electronic equipment Active CN110190860B (en)

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CN114586288B (en) 2019-12-31 2024-04-30 Oppo广东移动通信有限公司 Radio frequency module, control method, electronic device and storage medium
CN112636780A (en) * 2019-12-31 2021-04-09 Oppo广东移动通信有限公司 Radio frequency module and electronic equipment
WO2021143756A1 (en) * 2020-01-17 2021-07-22 Oppo广东移动通信有限公司 Radio frequency system and electronic device
CN111726128B (en) * 2020-06-22 2022-04-01 维沃移动通信有限公司 Radio frequency structure and electronic equipment
CN114389625B (en) * 2020-10-19 2023-06-27 华为技术有限公司 Transmitting system, transmitting signal switching method, medium and user equipment
CN113315528B (en) * 2021-06-08 2022-06-21 展讯通信（上海）有限公司 Radio frequency circuit, terminal equipment and radio frequency signal sending method

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CN108770068B (en) * 2018-06-04 2022-10-21 Oppo广东移动通信有限公司 WIFI frequency band selection method and device, storage medium and electronic equipment
CN108768434B (en) * 2018-06-06 2021-02-12 维沃移动通信有限公司 Radio frequency circuit, terminal and signal transmission control method
CN109120282B (en) * 2018-08-23 2020-12-01 珠海格力电器股份有限公司 Mobile terminal antenna multiplexing system, control method and mobile terminal thereof
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