CN110224706B

CN110224706B - Radio frequency circuit and electronic equipment

Info

Publication number: CN110224706B
Application number: CN201910517821.5A
Authority: CN
Inventors: 杨怀
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2021-04-02
Anticipated expiration: 2039-06-14
Also published as: CN110224706A

Abstract

The embodiment of the application provides a radio frequency circuit and electronic equipment, radio frequency circuit includes: the four receiving and transmitting antennas are used for sending uplink sounding reference signals of the first SIM card to the base station in turn in a time division mode in each first sending period, and the uplink sounding reference signals are used for judging the quality of downlink channels when the four receiving and transmitting antennas are used for transmitting 5G radio frequency signals of the first SIM card with the base station; the four transceiving antennas are also used for transmitting the 4G radio frequency signals of the second SIM card and the 5G radio frequency signals of the second SIM card in the first transmitting period. Therefore, the uplink sounding reference signal of the first SIM card and the 4G and 5G radio frequency signals of the second SIM card can be transmitted on the four receiving and transmitting antennas of the radio frequency circuit, the double SIM cards can be shared by the four receiving and transmitting antennas, the number of the 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 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, two Subscriber identity modules (SIM cards) are generally provided in an electronic device such as a smart phone. In order to enable the electronic device to simultaneously support the 4G network and the 5G network through the two SIM cards, a plurality of independent antennas need to be set for the 4G network and a plurality of independent antennas need to be set for the 5G network in the electronic device, 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.

An embodiment of the present application provides a radio frequency circuit, including: the four receiving and transmitting antennas are used for sending uplink sounding reference signals of the first SIM card to the base station in turn in a time division mode in each first sending period, and the uplink sounding reference signals are used for judging the downlink channel quality when the four receiving and transmitting antennas are used for transmitting the 5G radio frequency signals of the first SIM card with the base station;

the four transceiving antennas are further used for transmitting the 4G radio frequency signals of the second SIM card and the 5G radio frequency signals of the second SIM card in the first transmitting period.

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.

The radio frequency circuit and the electronic equipment provided by the embodiment of the application, through the 4G of the second SIM card of simultaneous transmission in the SRS signal transmission cycle of first SIM card, thereby 5G radio frequency signal can realize transmitting the ascending detection reference signal of first SIM card and the 4G of second SIM card on four receiving and dispatching antennas of radio frequency circuit, 5G radio frequency signal, in order to realize two SIM cards to the sharing of four receiving and dispatching antennas, consequently, can reduce radio frequency circuit's antenna quantity, reduce the occupation of antenna to electronic equipment inner space, thereby can improve the inside space utilization of electronic equipment.

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 a second structure of the rf circuit according to the embodiment of the present disclosure.

Fig. 6 is a schematic diagram of second signal transmission in the rf circuit according to the embodiment of the present application.

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 illustrating a fourth signal transmission in the rf circuit according to the embodiment of the present application.

Fig. 9 is a schematic diagram of fifth signal transmission in the rf circuit according to the embodiment of the present application.

Fig. 10 is a schematic diagram of sixth signal transmission in the rf circuit according to the embodiment of the present application.

Fig. 11 is a schematic diagram of seventh signal transmission in the rf circuit according to the embodiment of the present application.

Fig. 12 is a schematic diagram of eighth signal transmission in the rf circuit according to the embodiment of the present application.

Fig. 13 is a diagram illustrating ninth signal transmission in a radio frequency circuit according to an embodiment of the present disclosure.

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 inventive step, are within the scope of the present application.

The embodiment of the application provides a radio frequency circuit and 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 102, a bezel 103, a circuit board 104, a battery 105, a back cover 106, a first SIM card 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 100. For example, the display screen 101 may be mounted on the housing. In addition, functional components such as a camera, a receiver, a circuit board, and a battery of the electronic apparatus 100 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 or composite material.

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 power 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 may be mounted on the bezel 103 or on the circuit board 104 inside the electronic device. 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 on the middle frame 103 or on the circuit board 104 inside the electronic device. 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 radio frequency circuit 200 is used to enable wireless communication between the electronic device 100 and a base station or other electronic devices.

Referring to fig. 3, fig. 3 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present disclosure. The radio frequency circuit 200 comprises a processing module 201, a first modem 202, a second modem 203 and four transceiver antennas 204.

The four transceiving antennas 204 include a first transceiving antenna 2041, a second transceiving antenna 2042, a third transceiving antenna 2043 and a fourth transceiving antenna 2044.

The first modem 202 is used for processing 5G radio frequency signals. The input of the first modem 202 is connected to the processing module 201, and the output of the first modem 202 is connected to four transceiver antennas 204.

The second modem 203 is used for processing 4G radio frequency signals. The input of the second modem 203 is connected to the processing module 201, and the output of the second modem 203 is connected to four transceiver antennas 204.

Referring to fig. 4, fig. 4 is a schematic diagram of a first signal transmission in a radio frequency circuit according to an embodiment of the present disclosure. The processing module 201 controls the first modem 202 to transmit an uplink Sounding Reference Signal (SRS) of the first SIM card through the first transceiving antenna 2041 during the first time period T1; in a second time period T2, the uplink sounding reference signal of the first SIM card is transmitted through the second transceiving antenna 2042; in a third time period T3, the uplink sounding reference signal of the first SIM card is transmitted through the third transceiving antenna 2043; during a fourth time period T4, the uplink sounding reference signal of the first SIM card is transmitted through the fourth transceiving antenna 2044. It should be noted that, in the figure, ANT1 is a first transceiver antenna 2041, ANT2 is a first transceiver antenna 2042, ANT3 is a first transceiver antenna 2043, and ANT4 is a first transceiver antenna 2044, which will not be described in detail later.

The first time period T1, the second time period T2, the third time period T3 and the fourth time period T4 are consecutive time periods in a cycle, the first time period T1, the second time period T2, the third time period T3 and the fourth time period T4 form a first transmission cycle, and in the first transmission cycle, the four transceiving antennas are further used for transmitting a 4G radio frequency signal of the second SIM card and a 5G (nr) radio frequency signal of the second SIM card, or the four transceiving antennas are further used for transmitting a 4G radio frequency signal of the first SIM card, a 4G radio frequency signal of the second SIM card and a 5G (nr) radio frequency signal of the second SIM card.

In a first transmission period, the processing module 201 sequentially transmits sounding reference signals (SRS signals) of the first SIM card through the first transceiving antenna 2041, the second transceiving antenna 2042, the third transceiving antenna 2043 and the fourth transceiving antenna 2044; meanwhile, in a first transmission period, the transceiver antennas 204 are further configured to transmit a 4G radio frequency signal of the second SIM card and a 5G (nr) radio frequency signal of the second SIM card, or transmit a 4G radio frequency signal of the first SIM card, a 4G radio frequency signal of the second SIM card and a 5G (nr) radio frequency signal of the second SIM card, so that complete multiplexing is achieved, and it is not necessary to separately set a 4G transceiver antenna and a 5G transceiver antenna, thereby saving the number of transceiver antennas, and at the same time, correspondingly reducing a headroom area of the transceiver antennas, saving a space in the electronic device, improving a space utilization rate inside the electronic device, and facilitating light and thin of the electronic device.

For example, one cycle includes four consecutive time periods T1, T2, T3, and T4, when the uplink sounding reference signal of the first SIM card is transmitted through the first transceiving antenna 2041 in the time period T1, the second transceiving antenna 2042, the third transceiving antenna 2043, and the fourth transceiving antenna 2044 do not transmit the sounding reference signal of the first SIM card or are in an idle state, and then the second transceiving antenna 2042, the third transceiving antenna 2043, and the fourth transceiving antenna 2044 may be used to transceive a 4G radio frequency signal of the second SIM card or a 5G (nr) radio frequency signal of the second SIM card, which does not affect transmission of the uplink sounding reference signal (SRS signal) of the first SIM card, and may also network the second SIM card, and implement data transmission of the second SIM card.

The rf circuit 200 may further include a baseband circuit, and the processing module 201 is connected to the second modem 203 and the first modem 202 through the baseband circuit. The baseband circuit is used for processing communication data of the radio frequency circuit 200 and controlling the working state of each device in the radio frequency circuit 200 according to the interaction information with the base station or the network server. It is understood that the baseband circuit may be integrated into the processing module 201 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 circuitry. The first modem 202 is used for processing 5G 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.

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 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.

The second modem 203 and the first modem 202 may be connected to the same antenna via a splitter. The splitter is used for combining and splitting the radio frequency signals. That is, the splitter may be configured to combine two uplink signals into one uplink signal and to split one downlink signal into two downlink signals.

The splitter 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 splitter may also be replaced by a high frequency switch. For example, the splitter may be replaced by a Thin Film Transistor (TFT), through which the splitter switches between turning on the second modem 203 and turning on the first modem 202.

It is understood that the 5g (nr) radio frequency signal of the first SIM card refers to a 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 in the fifth generation mobile communication technology.

It is understood that the 5g (nr) radio frequency signal of the second SIM card refers to a signal when the electronic device 100 wirelessly communicates with a base station or other electronic devices through the information stored in the second SIM card in the fifth generation mobile communication technology.

It is understood that the 4g (lte) radio frequency signal of the first SIM card refers to a 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 in the fourth generation mobile communication technology.

It is understood that the 4g (lte) radio frequency signal of the second SIM card refers to a signal when the electronic device 100 wirelessly communicates with a base station or other electronic devices through the information stored in the second SIM card in the fourth generation mobile communication technology.

Each antenna 204 is connected to the second modem 203 and the first modem 202. Wherein, the antenna 204 can be connected to one end of the splitter, and the other end of the splitter is connected to the second modem 203 and the first modem 202 at the same time, so as to realize the connection of the antenna 204 with the second modem 203 and the first modem 202 at the same time. Each antenna 204 is used for transmitting a 5g (nr) radio frequency signal of the first SIM card, a 5g (nr) radio frequency signal of the second SIM card, a 4g (lte) radio frequency signal of the first SIM card, and a 4g (lte) radio frequency signal of the second SIM card.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a second structure of a radio frequency circuit according to an embodiment of the present disclosure. The number of the output ends of the first modem can be one, and the output ends of the first modem are used for

processing

2G, 3G, 4G and 5G radio frequency signals. When the number of the output terminals of the first modem is two, the output terminal of the first modem 202 includes a first output terminal 2021 and a second output terminal 2022, the first output terminal 2021 and the second output terminal 2022 are connected to the four transceiving antennas 204 through the switch element 206, and the first output terminal 2021 and the second output terminal 2022 are used for outputting two paths of sounding reference signals. It should be noted that when the first modem 202 has two output terminals, there are a first power amplifier 2051 and a second power amplifier 2052.

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. 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.

Therefore, in the rf circuit 200, the SRS signal can be switched between the four transmitting/receiving antennas 204. That is, the SRS signal is sequentially transmitted to the base station through the four transceiving antennas in a time division manner, and when one of the four transceiving antennas is used for transmitting the SRS signal, the other three antennas realize transmission of the communication content of the user between the electronic device and the base station.

Therefore, coexistence of a 5G network and a 4G network under two SIM card situations is a problem to be solved urgently in the industry, and currently, no good solution exists.

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 radio frequency signal and a 4G radio frequency signal at the same time. That is, in the 5G network architecture of NSA, the 5G radio frequency signals include a 4G radio frequency signal stream and a 5G radio frequency signal stream. Therefore, the present application is to solve how to transmit 4G and 5G radio frequency signals through idle antennas in a period of SRS signal transmission in turn, so as to implement a SIM card 5G network function under non-independent networking, that is, transmission of 5G radio frequency signals under a single SIM card NSA mode or transmission of 5G radio frequency signals under a dual SIM card NSA mode.

In order to realize sending of a 5G uplink sounding reference signal to a base station through a first SIM card in a non-independent Networking (NSA) mode and realizing network injection and data flow through a second SIM card, sending the uplink sounding reference signal of the first SIM card to the base station in turn through four receiving and sending antennas in a time division mode in each first transmission period, wherein the uplink sounding reference signal is used for judging, with the base station, the quality of a downlink channel when the four receiving and sending antennas are used for transmitting the 5G radio frequency signal of the first SIM card; the four transceiving antennas are also used for transmitting the 4G radio frequency signals of the second SIM card and the 5G radio frequency signals of the second SIM card in the first transmitting period.

Specifically, during the first time period T1, the SRS signal of the first SIM card is transmitted through the first transceiving antenna ANT1, and the 5G rf signal of the second SIM card is received through the second transceiving antenna ANT2, the third transceiving antenna ANT3, and the fourth transceiving antenna ANT 4.

The second period T2 transmits the SRS signal of the first SIM card through the second transceiving antenna ANT 2.

The third period T3 transmits the 4G radio frequency signal of the second SIM card through the first transceiving antenna ANT1, receives the 4G radio frequency signal of the second SIM card through the second transceiving antenna ANT2, transmits the SRS signal of the first SIM card through the third transceiving antenna ANT3, and receives the 5G radio frequency signal of the second SIM card through the fourth transceiving antenna ANT 4.

The fourth time period T4 is when the first transceiving antenna ANT1 receives the 5G radio frequency signal of the second SIM card and transmits the SRS signal of the first SIM card through the fourth transceiving antenna ANT 4.

In order to implement transmission of 5G radio frequency signals under the NSA mode of the dual SIM cards, four transceiving antennas ANT1, ANT2, ANT3, and ANT4 are configured to alternately send uplink Sounding Reference Signals (SRS) of a first SIM card to a base station in a time division manner in each transmission period, the uplink Sounding Reference Signals (SRS) are configured to determine, with the base station, downlink channel quality when the four transceiving antennas are configured to transmit the 5G radio frequency signals of the first SIM card, and the four transceiving antennas are further configured to transmit 4G radio frequency signals of the first SIM card and receive 4G radio frequency signals of the first SIM card, transmit and receive 4G radio frequency signals of a second SIM card, and receive 5G radio frequency signals of the second SIM card in the transmission period.

Specifically, during the first time period T1, the SRS signal of the first SIM card is transmitted through the first transceiving antenna ANT1, the 5G radio frequency signal of the second SIM card is received through the second transceiving antenna ANT2, the 5G radio frequency signal of the second SIM card is received through the third transceiving antenna ANT3, and the 5G radio frequency signal of the second SIM card is received through the fourth transceiving antenna ANT 4.

The second period T2 includes the first transceiving antenna ANT1 transmitting a 4G radio frequency signal of the first SIM card, the second transceiving antenna ANT2 transmitting an SRS signal of the first SIM card, the third transceiving antenna ANT3 receiving a 4G radio frequency signal of the first SIM card, and the fourth transceiving antenna ANT4 receiving a 4G radio frequency signal of the first SIM card.

The third period T3 is when the first transceiving antenna ANT1 transmits a 4G radio frequency signal of the second SIM card, receives the 4G radio frequency signal of the second SIM card through the second transceiving antenna ANT2, transmits an SRS signal of the first SIM card through the third transceiving antenna ANT3, and receives a 5G radio frequency signal of the second SIM card through the fourth transceiving antenna ANT 4.

In this period, it has been satisfied that uplink Sounding Reference Signals (SRS) of the first SIM card are sent to the base station in a time-division manner in turn, and at least 4G radio frequency signals of the first SIM card are transmitted and received, 4G radio frequency signals of the second SIM card are transmitted and received, and 5G radio frequency signals of the second SIM card are received, so the remaining two transceiving antennas ANT2 and ANT3 may be used for transceiving signals, and may also be used as idle transceiving antennas.

Referring to fig. 8, fig. 8 is a schematic diagram illustrating a fourth signal transmission in the rf circuit according to the embodiment of the present disclosure.

As long as the conditions that the uplink Sounding Reference Signals (SRS) of the first SIM cards are sent to the base station in turn in a time division manner, and at least one 4G radio frequency signal of the first SIM card is transmitted and two 4G radio frequency signals of the first SIM cards are received, at least one 4G radio frequency signal of the second SIM card is transmitted and two 4G radio frequency signals of the second SIM cards are received, and at least four 5G radio frequency signals of the second SIM cards are received are met in one transmission period, any combination of the antenna transmission and reception signals can be implemented.

For example, the first transceiving antenna ANT1 is used to transmit the SRS signal of the first SIM card during the first time period T1, and serves as a 5G radio frequency signal for receiving the second SIM card through the fourth transceiving antenna ANT 4.

The fourth time period T4 includes the first transceiving antenna ANT1 receiving the 5G rf signal of the second SIM card, the second transceiving antenna ANT2 receiving the 5G rf signal of the second SIM card, the third transceiving antenna ANT3 receiving the 5G rf signal of the second SIM card, and the fourth transceiving antenna ANT4 receiving the 5G rf signal of the second SIM card.

It is to be understood that the kind and number of transmission signals should not be construed as a limitation to the present application as long as the number and kind of transmission signals of the above-mentioned four transceiving antennas are satisfied within one period.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a fifth signal transmission in the rf circuit according to the embodiment of the disclosure. In this embodiment, the second SIM card may alternately send uplink Sounding Reference Signals (SRS) to the base station in a time division manner, so as to implement 4G network injection and data traffic transmission by the first SIM card.

The first period T1 transmits the SRS signal of the second SIM card through the first transceiving antenna ANT1, receives the 5G radio frequency signal of the first SIM card through the second transceiving antenna ANT2, receives the 5G radio frequency signal of the first SIM card through the third transceiving antenna ANT3, and receives the 5G radio frequency signal of the first SIM card through the fourth transceiving antenna ANT 4.

The second period T2 transmits the 4G radio frequency signal of the second SIM card through the first transceiving antenna ANT1, transmits the SRS signal of the second SIM card through the second transceiving antenna ANT2, receives the 4G radio frequency signal of the second SIM card through the third transceiving antenna ANT3, and receives the 4G radio frequency signal of the second SIM card through the fourth transceiving antenna ANT 4.

The third period T3 transmits the 4G radio frequency signal of the first SIM card through the first transceiving antenna ANT1, receives the 4G radio frequency signal of the first SIM card through the second transceiving antenna ANT2, transmits the SRS signal of the second SIM card through the third transceiving antenna ANT3, and receives the 5G radio frequency signal of the first SIM card through the fourth transceiving antenna ANT 4.

The fourth time period T4 receives the 5G radio frequency signal of the first SIM card through the first transceiving antenna ANT1, and transmits the SRS signal of the second SIM card through the fourth transceiving antenna ANT 4.

It can be understood that, similar to the method for sending the uplink Sounding Reference Signal (SRS) by the first SIM card, as long as the conditions of sending the uplink Sounding Reference Signal (SRS) of the second SIM card to the base station in a time-division manner in turn, and sending at least one 4G radio frequency signal of the second SIM card and receiving 4G radio frequency signals of two second SIM cards, sending at least one 4G radio frequency signal of the first SIM card and receiving 4G radio frequency signals of two first SIM cards, and receiving at least 5G radio frequency signals of four first SIM cards are satisfied in one sending period, any combination may be performed on the antenna transceiving signals.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating sixth signal transmission in the rf circuit according to the embodiment of the present disclosure.

And when the four receiving and transmitting antennas are used for alternately sending the uplink sounding reference signals of the second SIM card to the base station in a time division manner in the first transmission period and alternately sending the uplink sounding reference signals of the second SIM card to the base station in a time division manner in the second transmission period, the four receiving and transmitting antennas are used for realizing the 5G network communication of the two SIM cards under the non-independent networking.

The four transceiving antennas in the first time period T1 to the fourth time period T4 are used to alternately transmit uplink Sounding Reference Signals (SRS) of the first SIM card to the base station in a time division manner, and meet the condition that the four transceiving antennas are also used to transmit at least one 4G radio frequency signal of the first SIM card and receive two 4G radio frequency signals of the first SIM card, transmit at least one 4G radio frequency signal of the second SIM card and receive two 4G radio frequency signals of the second SIM card, and receive at least four 5G radio frequency signals of the second SIM card.

The four transceiving antennas in the fifth time period T5 to the eighth time period T8 are used to alternately transmit uplink Sounding Reference Signals (SRS) of the second SIM card to the base station in a time division manner, and meet the requirements that the four transceiving antennas are also used to transmit at least one 4G radio frequency signal of the second SIM card and receive 4G radio frequency signals of two second SIM cards, transmit at least one 4G radio frequency signal of the first SIM card and receive 4G radio frequency signals of two first SIM cards, and receive at least 5G radio frequency signals of four first SIM cards.

The first to eighth periods T1-T8 constitute a new cycle, and it is understood that there may be a time interval between the fourth period T4 and the fifth period T5.

In the fifth period T5, the SRS signal of the second SIM card is transmitted through the first transceiving antenna ANT1, the 5G radio frequency signal of the first SIM card is received through the second transceiving antenna ANT2, the 5G radio frequency signal of the first SIM card is received through the third transceiving antenna ANT3, and the 5G radio frequency signal of the first SIM card is received through the fourth transceiving antenna ANT 4.

The sixth period T6 is when the first transceiving antenna ANT1 transmits a 4G radio frequency signal of the second SIM card, transmits an SRS signal of the second SIM card through the second transceiving antenna ANT2, receives a 4G radio frequency signal of the second SIM card through the third transceiving antenna ANT3, and receives a 4G radio frequency signal of the second SIM card through the fourth transceiving antenna ANT 4.

The seventh period T7 is when the first transceiving antenna ANT1 transmits a 4G radio frequency signal of the first SIM card, receives the 4G radio frequency signal of the first SIM card through the second transceiving antenna ANT2, transmits an SRS signal of the second SIM card through the third transceiving antenna ANT3, and receives a 5G radio frequency signal of the first SIM card through the fourth transceiving antenna ANT 4.

The eighth time period T8 is when the first transceiving antenna ANT1 receives the 5G radio frequency signal of the first SIM card and transmits the SRS signal of the second SIM card through the fourth transceiving antenna ANT 4.

The uplink sounding reference signals of the first SIM card are sent to the base station in turn in a time division mode in the first transmission period, and the uplink sounding reference signals of the second SIM card are sent to the base station in turn in a time division mode in the second transmission period, so that 4G and 5G network communication of the two SIM cards under the non-independent networking is realized.

Referring to fig. 11, fig. 11 is a schematic diagram illustrating a seventh signal transmission in the rf circuit according to the embodiment of the disclosure.

In this embodiment, when the first SIM card uplink Sounding Reference Signal (SRS) is sent to the base station by four transceiving antennas in a time division manner in turn, the sending of the 4G radio frequency signal of the second SIM card is cancelled in the third time period, where the 4G radio frequency signal is a signal of the second SIM card registering a network with the base station, and the sending of the network injection signal is cancelled to the base station, so that a single-card data stream passing through the first SIM card is implemented, and 4G and 5G network communication of the first SIM card is implemented.

Referring to fig. 12, fig. 12 is a schematic diagram illustrating eighth signal transmission in the rf circuit according to the embodiment of the disclosure.

In this embodiment, when the four transceiver antennas alternately transmit uplink Sounding Reference Signals (SRS) of the second SIM card to the base station in a time division manner, the transmission of the 4G radio frequency signal of the first SIM card is cancelled in the third time period, where the 4G radio frequency signal is a signal of the first SIM card registering a network with the base station, and the transmission of the network injection signal is cancelled to the base station, so that a single-card data stream passing through the second SIM card is implemented, and 4G and 5G network communication of the second SIM card is implemented.

Referring to fig. 13, fig. 13 is a schematic diagram illustrating ninth signal transmission in the rf circuit according to the embodiment of the present disclosure.

The four transceiving antennas of the first time period T1 to the fourth time period T4 are used for realizing alternately sending the uplink Sounding Reference Signal (SRS) of the first SIM card to the base station in a time division manner, and the four transceiving antennas of the fifth time period T5 to the eighth time period T8 are used for realizing alternately sending the uplink Sounding Reference Signal (SRS) of the second SIM card to the base station in a time division manner. T1-T8 constitute a new cycle. And canceling sending the 4G radio frequency signal of the second SIM card in a third time period T3, wherein the 4G radio frequency signal is a signal of the second SIM card registering the network to the base station, and canceling sending the network injection signal to the base station to realize single-card data flow passing through the first SIM card and realize 4G and 5G network communication of the first SIM card.

In some embodiments, the sending of the 4G radio frequency signal of the first SIM card may also be cancelled in the seventh time period T7, where the 4G radio frequency signal is a signal of the first SIM card registering a network with the base station, and the single-card data stream passing through the second SIM card is implemented by cancelling the sending of the network injection signal to the base station, so as to implement 4G and 5G network communication of the second SIM card.

It can be understood that, since the embodiment of the present application is based on non-independent Networking (NSA), the implementation of 5G network communication must be based on a 4G network, when implementing single-card data stream, the 4G rf signal of the first SIM card and the 4G rf signal of the second SIM card cannot cancel transmission in one cycle, that is, cannot cancel network injection of the first SIM card and the second SIM card in one cycle.

The embodiment of the application also includes a signal transmission method, which applies the radio frequency circuit, and the method includes: sending uplink sounding reference signals of a first SIM card to a base station in turn through four receiving and sending antennas in a time division mode in each first sending period, wherein the uplink sounding reference signals are used for judging the quality of downlink channels when the four receiving and sending antennas are used for transmitting 5G radio frequency signals of the first SIM card with the base station;

and transmitting 4G radio frequency signals of a second SIM card and 5G radio frequency signals of the second SIM card through four transceiving antennas in the first transmitting period.

The method further comprises the following steps:

receiving 4G radio frequency signals of the second SIM card through two idle receiving and transmitting antennas in a time period of the first transmitting period;

and in other time periods of the first transmission cycle, receiving the 5G radio frequency signals of the second SIM card through the four idle transceiving antennas.

The method further comprises the following steps:

and when the two idle transceiving antennas are used for receiving the 4G radio frequency signal of the second SIM card, transmitting the 4G radio frequency signal of the second SIM card through one idle transceiving antenna.

The method further comprises the following steps:

and when the 4G radio frequency signals of the second SIM card and the 5G radio frequency signals of the second SIM card are transmitted through the four transceiving antennas in the first transmitting period, the 4G radio frequency signals of the first SIM card are also transmitted through the four transceiving antennas in the first transmitting period.

The method further comprises the following steps:

in a time period of the first transmission cycle, transmitting a 4G radio frequency signal of a second SIM card through an idle transceiving antenna;

the two idle receiving and transmitting antennas are used for receiving 4G radio frequency signals of the second SIM card;

in another time slot of the first transmitting period, transmitting a 4G radio frequency signal of the first SIM card through an idle transceiving antenna;

the two idle receiving and transmitting antennas are used for receiving 4G radio frequency signals of the first SIM card;

and in other time periods of the first transmission cycle, the four idle transceiving antennas are used for receiving the 5G radio frequency signals of the second SIM card.

The method further comprises the following steps:

in a time period of the first transmission cycle, the two idle transceiving antennas are used for receiving a 5G radio frequency signal of a second SIM card;

in another time period of the first transmission cycle, the two idle transceiving antennas are used for receiving 5G radio frequency signals of a second SIM card;

or

In a time period of the first transmission cycle, the three idle transceiving antennas are used for receiving 5G radio frequency signals of a second SIM card;

and in another time period of the first transmission cycle, the idle transceiving antenna is used for receiving the 5G radio frequency signal of the second SIM card.

The method further comprises the following steps:

the first transmission cycle comprises a first time period, a second time period, a third time period and a fourth time period, and the four transceiving antennas comprise a first transceiving antenna, a second transceiving antenna, a third transceiving antenna and a fourth transceiving antenna;

in the first time period, transmitting an uplink sounding reference signal of a first SIM card through the first transceiving antenna, and receiving a 5G radio frequency signal of a second SIM card through the second transceiving antenna, the third transceiving antenna and the fourth transceiving antenna;

in the second time period, transmitting the uplink sounding reference signal of the first SIM card through the second transceiver antenna, transmitting the 4G radio frequency signal of the first SIM card through the first transceiver antenna, and receiving the 4G radio frequency signal of the first SIM card through the third transceiver antenna and the fourth transceiver antenna;

in the third time period, transmitting the uplink sounding reference signal of the first SIM card through the third transceiver antenna, transmitting the 4G radio frequency signal of the second SIM card through the first transceiver antenna, and receiving the 4G radio frequency signal of the second SIM card through the second transceiver antenna and the fourth transceiver antenna;

and in the fourth time period, transmitting the uplink sounding reference signal of the first SIM card through the fourth transceiving antenna, and receiving the 5G radio frequency signal of the second SIM card through at least one transceiving antenna of the first transceiving antenna, the second transceiving antenna and the third transceiving antenna.

The method further comprises the following steps:

and sending uplink sounding reference signals of the second SIM card to the base station in turn through four receiving and sending antennas in a time division mode in each second transmission period, wherein the uplink sounding reference signals are used for judging the downlink channel quality when the four receiving and sending antennas are used for transmitting the 5G radio frequency signals of the second SIM card with the base station.

And transmitting the 4G radio frequency signal of the first SIM card and the 5G radio frequency signal of the first SIM card through the four transceiving antennas in each second transmitting period.

The method further comprises the following steps:

and when the four transceiving antennas transmit the 4G radio frequency signals of the first SIM card and the 5G radio frequency signals of the first SIM card in each second transmission period, the four transceiving antennas transmit the 4G radio frequency signals of the second SIM card in the second transmission period.

An embodiment of the present application further provides a storage medium, where a computer program is stored in the storage medium, and when the computer program runs on a computer, the computer executes the signal transmission method according to any one of the above embodiments.

It should be noted that, all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, which may include, but is not limited to: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.

It should be noted that in the description of the present application, terms such as "first", "second", and the like are used only for distinguishing similar objects, and are not to be construed as indicating or implying relative importance or implicitly indicating 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

1. A radio frequency circuit, comprising:

the four receiving and transmitting antennas are used for sending uplink sounding reference signals of the first SIM card to the base station in turn in a time division mode in each first sending period, and the uplink sounding reference signals are used for judging the downlink channel quality when the four receiving and transmitting antennas are used for transmitting the 5G radio frequency signals of the first SIM card with the base station;

in the first time period, the first transceiver antenna is configured to transmit an uplink sounding reference signal of the first SIM card, and the second transceiver antenna, the third transceiver antenna and the fourth transceiver antenna are configured to receive a 5G radio frequency signal of a second SIM card;

in the second time period, the second transceiving antenna is configured to transmit an uplink sounding reference signal of the first SIM card, the first transceiving antenna is configured to transmit a 4G radio frequency signal of the first SIM card, and the third transceiving antenna and the fourth transceiving antenna are configured to receive the 4G radio frequency signal of the first SIM card;

in the third time period, the third transceiving antenna is configured to transmit an uplink sounding reference signal of the first SIM card, the first transceiving antenna is configured to transmit a 4G radio frequency signal of the second SIM card, and the second transceiving antenna and the fourth transceiving antenna are configured to receive the 4G radio frequency signal of the second SIM card;

in the fourth time period, the fourth transceiving antenna is configured to transmit the uplink sounding reference signal of the first SIM card, and at least one of the first transceiving antenna, the second transceiving antenna, and the third transceiving antenna is configured to receive a 5G radio frequency signal of the second SIM card.

2. 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 claim 1.