CN113437993A

CN113437993A - Radio frequency circuit and control method

Info

Publication number: CN113437993A
Application number: CN202110512135.6A
Authority: CN
Inventors: 冯莉; 江成
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-09-24
Anticipated expiration: 2041-05-11
Also published as: CN113437993B; WO2022237250A1

Abstract

The embodiment of the application provides a radio frequency circuit and a control method. The circuit comprises a radio frequency transceiver, a controller, a switch unit, a first antenna, a second antenna and a third antenna. The radio frequency transceiver comprises a first port to a fifth port for transmitting and receiving a first signal, receiving a second signal and the first signal, transmitting and receiving a second signal, receiving the second signal and receiving the second signal; the switch unit includes sixth to fifteenth ports connected to the first to fifth ports and the first to fifth antennas; the controller is used for controlling the port connection of the switch unit, so that one of the first antenna and the second antenna is used for transmitting and receiving a first signal, and the other one is used for receiving the first signal and the second signal; any one of the third antenna to the fifth antenna is used for transmitting the second signal and is used for receiving the second signal. And SA and NSA functions are realized through antenna multiplexing and port switching. The number of the antennas is reduced, the occupied space is reduced, and the size of the terminal is reduced.

Description

Radio frequency circuit and control method

Technical Field

The present application relates to the field of terminal technologies, and in particular, to a radio frequency circuit and a control method.

Background

Currently, a fifth generation mobile communication technology (5th-generation, 5G) network may communicate in two networking manners. The two networking modes are non-independent Networking (NSA) and independent networking (SA). Specifically, when the dual-mode 5G phone supports two modes, namely, NSA and SA, the dual-mode 5G phone can implement communication in multiple ways. The communication method comprises the following steps: 5G New Radio (NR) communication, Long Term Evolution (LTE) communication, and dual connectivity (endec) communication of LTE and NR. In the NR frequency band, the dual-mode 5G handset also needs to support NR 1 transmit and 4 receive (1T4R) Sounding Reference Signal (SRS) antennas to transmit in turn.

In the existing design, when NR needs 4 × 4 multiple-input-multiple-output (MIMO) communication and LTE needs 2 × 2MIMO, the dual-mode 5G handset includes 6 antennas.

However, the number of antennas in the dual-mode 5G mobile phone is large, and the occupied space is large.

Disclosure of Invention

The embodiment of the application provides a radio frequency circuit and a control method. The antenna is shared, and the LTE signal and the NR signal are simultaneously received on one antenna, so that the number of the antennas is reduced, the space occupied by the antennas is reduced, and the size of the terminal equipment is reduced. And the radio frequency circuit realizes the switching of the transmitting antenna of the LTE signal or the transmitting antenna of the NR signal by changing the connection of the ports in the switch unit, thereby realizing the dual-mode functions of SA and NSA.

In a first aspect, an embodiment of the present application provides a radio frequency circuit. The radio frequency circuit comprises a radio frequency transceiver, a controller, a switch unit, a first antenna, a second antenna, a third antenna, a fourth antenna and a fifth antenna; the radio frequency transceiver comprises a first port, a second port, a third port, a fourth port and a fifth port, wherein the first port is used for transmitting and receiving a first signal, the second port is used for receiving a second signal and the first signal, the third port is used for transmitting and receiving the second signal, and the fourth port and the fifth port are both used for receiving the second signal.

The switch unit comprises a sixth port, a seventh port, an eighth port, a ninth port, a tenth port, an eleventh port, a twelfth port, a thirteenth port, a fourteenth port and a fifteenth port; the first port, the second port, the third port, the fourth port and the fifth port are respectively connected with the sixth port, the seventh port, the eighth port, the ninth port and the tenth port; the eleventh port, the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port are respectively connected with the first antenna, the second antenna, the third antenna, the fourth antenna and the fifth antenna.

The first antenna is used for transmitting and receiving a first signal, and the second antenna is used for receiving the first signal and a second signal; or the first antenna is used for receiving the first signal and the second signal, and the second antenna is used for transmitting and receiving the first signal; any one of the third antenna, the fourth antenna and the fifth antenna is used for transmitting a second signal, and the third antenna, the fourth antenna and the fifth antenna are all used for receiving the second signal.

The controller is connected with the switch unit; the controller is used for controlling the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively or controlling the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively when the radio frequency transceiver transmits or receives the first signal.

And/or, when the radio frequency transceiver transmits or receives a second signal, controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port respectively, or controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port respectively; the first signal is a Long Term Evolution (LTE) signal, and the second signal is a new air interface (NR) signal.

In this way, the radio frequency circuit can realize LTE communication, NR communication and LTE and NR dual connection (ENDC) communication by using 5 antennas, and realize dual-mode functions of SA and NSA. The switching of the antennas can be realized by changing the connection of the ports in the switch unit, so that a proper antenna can be selected to transmit an LTE signal or an NR signal, the quality of the LTE signal or the NR signal is improved, and the throughput rate is improved. The reduction of the number of the antennas can reduce the space occupied by the antennas and reduce the volume of the terminal equipment.

Optionally, the third port is further configured to transmit a sounding reference signal SRS; the controller is further configured to control the eighth port to be connected with the twelfth port such that the second antenna is used for transmitting the SRS, when the third port transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS;

or when the third port transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port to be connected with the eleventh port, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS.

In this way, by changing the connection of the ports in the switch unit, the simultaneous coexistence of the LTE communication and the SRS is realized. When SRS sends in turn, can not influence the transmission of LTE signal, can avoid the LTE signal interrupt condition. And the time of the SRS transmitting process is short, and the influence on the receiving of LTE signals is small.

Optionally, the switch unit includes a first switch and a second switch, and both the first switch and the second switch are three-pole three-throw switches; the first switch comprises a sixth port, a seventh port, an eleventh port, a twelfth port, a thirteenth port and a sixteenth port; the second switch comprises an eighth port, a ninth port, a tenth port, a fourteenth port, a fifteenth port and a seventeenth port; the sixteenth port is connected with the seventeenth port; the first switch and the second switch are both connected with the controller.

The controller is used for controlling the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively or controlling the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively when the radio frequency transceiver transmits or receives the first signal.

And/or, when the radio frequency transceiver transmits or receives a second signal, controlling the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port respectively, or controlling the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port respectively.

In this way, LTE communication, NR communication, and dual connectivity (endec) communication of LTE and NR can be realized through the peer-to-peer switch and the 5 antennas, and dual-mode functions of SA and NSA are realized.

Optionally, the third port is further configured to transmit an SRS; the controller is further configured to control the eighth port and the sixteenth port to be connected with the seventeenth port and the twelfth port, respectively, so that the second antenna is used for transmitting the SRS when the radio frequency transceiver transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Or when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the eleventh port respectively, so that the first antenna is used for transmitting the SRS; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Optionally, the switch unit includes a third switch, and the third switch is a five-pole five-throw switch; the third switch comprises a sixth port, a seventh port, an eighth port, a ninth port, a tenth port, an eleventh port, a twelfth port, a thirteenth port, a fourteenth port and a fifteenth port; the third switch is connected with the controller.

Optionally, the switch unit includes a fourth switch and a fifth switch, the fourth switch is a double-pole double-throw switch, and the fourth switch is a four-pole four-throw switch; the fourth switch comprises a sixth port, an eleventh port, a twelfth port, and an eighteenth port; the fifth switch comprises a seventh port, an eighth port, a ninth port, a tenth port, a thirteenth port, a fourteenth port, a fifteenth port and a nineteenth port; the eighteenth port is connected with the nineteenth port; the fourth switch and the fifth switch are both connected with the controller.

The controller is used for controlling the sixth port, the seventh port and the eighteenth port to be respectively connected with the eleventh port, the nineteenth port and the twelfth port or controlling the sixth port, the seventh port and the eighteenth port to be respectively connected with the twelfth port, the nineteenth port and the eleventh port when the radio frequency transceiver transmits or receives the first signal.

And/or, when the radio frequency transceiver transmits or receives a second signal, controlling the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port respectively, or controlling the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port respectively.

Optionally, the third port is further configured to transmit an SRS; the controller is further configured to control the eighth port and the eighteenth port to be connected with the nineteenth port and the twelfth port, respectively, so that the second antenna is used for transmitting the SRS, when the radio frequency transceiver transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Or when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the eighteenth port to be connected with the nineteenth port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Optionally, the switch unit includes a sixth switch, a seventh switch and an eighth switch, where the sixth switch and the seventh switch are both double-pole four-throw switches, and the eighth switch is a single-pole double-throw switch; the sixth switch comprises a sixth port, a seventh port, an eleventh port, a twelfth port, a twentieth port and a twenty-first port; the seventh switch comprises an eighth port, a ninth port, a thirteenth port, a fourteenth port, a twenty-second port and a twenty-third port; the eighth switch comprises a tenth port, a fifteenth port and a twenty-fourth port; the twentieth port is disconnected, and the twenty-second port and the twenty-third port are respectively connected with the twentieth port and the twenty-fourth port; the sixth switch, the seventh switch and the eighth switch are all connected with the controller.

The controller is used for controlling the sixth port and the seventh port to be respectively connected with the eleventh port and the twelfth port or controlling the sixth port and the seventh port to be respectively connected with the twelfth port and the eleventh port when the radio frequency transceiver transmits or receives a first signal;

and/or when the radio frequency transceiver transmits or receives a second signal, controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port respectively, or controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port respectively.

In this way, LTE communication, NR communication, and dual connectivity (endec) communication of LTE and NR can be realized through the non-peer switch and the 5 antennas, and dual-mode functions of SA and NSA are realized.

Optionally, the third port is further configured to transmit an SRS; the controller is further configured to control the eighth port and the twenty-first port to be connected with the twelfth port and the twelfth port, respectively, when the radio frequency transceiver transmits the SRS and the first antenna is configured to transmit and receive the first signal, so that the second antenna is configured to transmit the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twenty-fourth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

Or when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the twenty-first port to be connected with the twenty-second port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twenty-fourth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

Optionally, the switch unit includes a ninth switch, a tenth switch, an eleventh switch and a twelfth switch, the ninth switch is a double-pole double-throw switch, the tenth switch is a double-pole four-throw switch, and both the eleventh switch and the twelfth switch are single-pole double-throw switches; the ninth switch comprises a sixth port, an eleventh port, a twelfth port and a twenty-fifth port; the tenth switch comprises a seventh port, an eighth port, a thirteenth port, a twenty-sixth port, a twenty-seventh port and a twenty-eighth port; the eleventh switch includes a ninth port, a fourteenth port, and a twenty-ninth port; the twelfth switch comprises a tenth port, a fifteenth port and a thirtieth port; the twenty-fifth port, the twenty-seventh port and the twenty-eighth port are respectively connected with the twenty-sixth port, the twenty-ninth port and the thirtieth port; the ninth switch, the tenth switch, the eleventh switch and the twelfth switch are all connected with the controller.

The controller is used for controlling the sixth port, the seventh port and the twenty-fifth port to be respectively connected with the eleventh port, the twenty-sixth port and the twelfth port or controlling the sixth port, the seventh port and the twenty-fifth port to be respectively connected with the twelfth port, the twenty-sixth port and the eleventh port when the radio frequency transceiver transmits or receives a first signal.

And/or when the radio frequency transceiver transmits or receives a second signal, controlling the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port respectively, or controlling the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port respectively.

Optionally, the third port is further configured to transmit an SRS; the controller is further configured to control the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the twelfth port, respectively, when the radio frequency transceiver transmits the SRS and the first antenna is configured to transmit and receive the first signal, so that the second antenna is configured to transmit the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

Or when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

In a second aspect, an embodiment of the present application provides a control method, which is applied to any one of the radio frequency circuits provided in the first aspect.

The control method comprises the following steps: the controller receives first information for indicating transmission or reception of a first signal; the controller controls the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively or controls the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively according to the first information.

And/or the controller receives second information for indicating transmission or reception of a second signal; the controller controls the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port respectively or controls the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port respectively according to the second information.

Optionally, the controller receives third information for instructing to transmit the SRS; the controller controls the eighth port and the twelfth port to be connected according to the third information, so that the second antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS.

Or the controller controls the eighth port to be connected with the eleventh port according to the third information, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS.

Optionally, when the switching unit includes a first switch and a second switch; the controller controls the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively or controls the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively according to the first information.

And/or the controller controls the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port respectively or controls the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port respectively according to the second information.

Optionally, the controller controls the eighth port and the sixteenth port to be connected to the seventeenth port and the twelfth port, respectively, according to the third information, so that the second antenna is configured to transmit the SRS; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Or the controller controls the eighth port and the sixteenth port to be connected with the seventeenth port and the eleventh port respectively according to the third information, so that the first antenna is used for transmitting the SRS; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Optionally, when the switching unit includes a third switch; the controller controls the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively or controls the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively according to the first information.

And/or the controller controls the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port respectively or controls the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port respectively according to the second information.

Optionally, the controller controls the eighth port to be connected with the twelfth port according to the third information, so that the second antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS.

Optionally, when the switching unit includes a fourth switch and a fifth switch; and the controller controls the sixth port, the seventh port and the eighteenth port to be connected with the eleventh port, the nineteenth port and the twelfth port respectively or controls the sixth port, the seventh port and the eighteenth port to be connected with the twelfth port, the nineteenth port and the eleventh port respectively according to the first information.

And/or the controller controls the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port respectively or controls the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port respectively according to the second information.

Optionally, the controller controls the eighth port and the eighteenth port to be connected with the nineteenth port and the twelfth port, respectively, according to the third information, so that the second antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Or the controller controls the eighth port and the eighteenth port to be connected with the nineteenth port and the eleventh port respectively according to the third information, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

Optionally, when the switching unit includes a sixth switch, a seventh switch, and an eighth switch; the controller controls the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively or controls the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively according to the first information.

Optionally, the controller controls the eighth port and the twenty-first port to be connected with the twelfth port and the twelfth port, respectively, according to the third information, so that the second antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twenty-fourth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

Or the controller controls the eighth port and the twenty-first port to be connected with the twenty-second port and the eleventh port respectively according to the third information, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twenty-fourth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

Optionally, when the switch unit includes a ninth switch, a tenth switch, an eleventh switch, and a twelfth switch; the controller controls the sixth port, the seventh port and the twenty-fifth port to be connected with the eleventh port, the twenty-sixth port and the twelfth port respectively according to the first information, or controls the sixth port, the seventh port and the twenty-fifth port to be connected with the twelfth port, the twenty-sixth port and the eleventh port respectively.

And/or the controller controls the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port respectively or controls the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port respectively according to the second information.

Optionally, the controller controls the eighth port and the twenty-fifth port to be connected to the twenty-sixth port and the twelfth port, respectively, according to the third information, so that the second antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

Or the controller controls the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the eleventh port respectively according to the third information, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

The beneficial effects of the control method provided in the second aspect and each possible design of the second aspect may refer to the beneficial effects brought by each possible rf circuit of the first aspect, and are not described herein again.

In a third aspect, an embodiment of the present application provides an electronic device, where the electronic device includes but is not limited to a terminal device, and the terminal device may also be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a smart tv, a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on.

The electronic device comprises any one of the radio frequency circuits provided in the first aspect above, the radio frequency circuit being configured to transmit and receive the first signal and/or the second signal; the first signal is an LTE signal, and the second signal is an NR signal.

The beneficial effects of the terminal device provided in the third aspect and the possible designs of the third aspect may refer to the beneficial effects brought by the possible radio frequency circuits of the first aspect and the first aspect, and are not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a radio frequency circuit in a possible implementation;

fig. 2 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 6 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 7 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;

fig. 10 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 11 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 12 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 13 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 14 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present disclosure;

fig. 15 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;

fig. 17 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 18 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 19 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 20 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 21 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present disclosure;

fig. 22 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present application;

fig. 23 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;

fig. 24 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 25 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 26 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 27 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 28 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present application;

fig. 29 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present application;

fig. 30 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;

fig. 31 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 32 is a schematic diagram of an antenna configuration in an LTE communication in a radio frequency circuit according to an embodiment of the present application;

fig. 33 is a schematic diagram of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 34 is a schematic view of an antenna configuration during SRS transmission in a radio frequency circuit according to an embodiment of the present application;

fig. 35 is a schematic diagram of an antenna configuration in an rf circuit for endec communication according to an embodiment of the present application;

fig. 36 is a schematic diagram of an antenna configuration in an rf circuit during an endec communication according to an embodiment of the present application.

Detailed Description

In the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same or similar items having substantially the same function and action. For example, the first device and the second device are only used for distinguishing different devices, and the sequence order thereof is not limited. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

It is noted that, in the present application, words such as "exemplary" or "for example" are used to mean exemplary, illustrative, or descriptive. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

It should be noted that the network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it is known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

The radio frequency circuit of the embodiment of the application can be applied to electronic equipment with a communication function. The electronic device includes a terminal device, which may also be referred to as a terminal (terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and so on. The terminal device may be a mobile phone (mobile phone), a smart tv, a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (self-driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

Currently, NR communication requires 4 × 4MIMO and LTE requires 2 × 2 MIMO. When the terminal device supports the NSA modality and the SA modality, the terminal device needs to support LTE communication and NR communication, and dual connectivity (endec) communication of LTE and NR. Therefore, 6 antennas are typically included in the terminal device.

Fig. 1 is a schematic structural diagram of an rf circuit in a possible implementation. As shown in fig. 1, the rf circuit includes: the radio frequency transceiver 101, the controller 102, the switch one 103, the switch two 104, the antenna one 105, the antenna two 106, the antenna three 107, the antenna four 108, the antenna five 109, and the antenna six 110.

The radio frequency transceiver 101 is configured to output an LTE signal and/or an NR signal, and perform signal processing on the LTE signal and/or the NR signal received by one or more antennas. Signal processing includes, but is not limited to, frequency conversion, demodulation, analog-to-digital conversion, and the like. The radio frequency transceiver 101 includes 6 ports, wherein a first port 101A is used for transmitting and receiving LTE signals; the second port 101B is used for receiving LTE signals; the third port 101C is used for transmitting and receiving NR signals; the fourth port 101D is for receiving an NR signal; the fifth port 101E is for receiving an NR signal; the sixth port 101F is for receiving an NR signal.

The controller 102 is configured to control settings of the first switch 103 and the second switch 104, and further control the first antenna 105 or the second antenna 106 to transmit an LTE signal, and control the third antenna 107, the fourth antenna 108, the fifth antenna 109, or the sixth antenna 110 to transmit an NR signal.

Switch one 103 includes 4 ports. A first port 103A and a second port 103B of the first switch 103 are respectively connected with a first port 101A and a second port 101B of the radio frequency transceiver 101; the third port 103C and the fourth port 103D of the first switch 103 are connected to the first antenna 105 and the second antenna 106, respectively.

Switch two 104 includes 8 ports. A first port 104A, a second port 104B, a third port 104C and a fourth port 104D of the second switch 104 are respectively connected with a third port 101C, a fourth port 101D, a fifth port 101E and a sixth port 101F of the radio frequency transceiver 101; the fifth port 104E, the sixth port 104F, the seventh port 104G, and the eighth port 104H of the second switch 104 are connected to the third antenna 107, the fourth antenna 108, the fifth antenna 109, and the sixth antenna 110, respectively.

The first switch 103 and the second switch 104 are both connected to the controller 102.

Antenna one 105 and antenna two 106 are used to transmit and/or receive LTE signals. Antenna three 107, antenna four 108, antenna five 109, and antenna six 110 are used to transmit and/or receive NR signals.

In a possible implementation manner, the frequency ranges supported by the antennas of the first antenna 105 and the second antenna 106 are both 824 megahertz (MHz) -2170MHz, and the frequency ranges supported by the third antenna 107, the fourth antenna 108, the fifth antenna 109 and the sixth antenna 110 are all 2496MHz-2690 MHz.

In a second possible implementation manner, the frequency ranges supported by the antennas of the first antenna 105 and the second antenna 106 are 1710MHz to 2690MHz, and the frequency ranges supported by the antennas of the third antenna 107, the fourth antenna 108, the fifth antenna 109 and the sixth antenna 110 are 3300MHz to 5000 MHz.

In a third possible implementation manner, the frequency ranges supported by the antennas of the first antenna 105 and the second antenna 106 are 1710MHz to 2690MHz, and the frequency ranges supported by the third antenna 107, the fourth antenna 108, the fifth antenna 109 and the sixth antenna 110 are 730MHz to 803 MHz.

The radio frequency circuit can realize LTE communication, NR communication and ENDC communication.

The controller 102 realizes LTE communication by controlling connection between ports of the switch one 103. For example, the controller 102 may control the first port 103A and the second port 103B of the first switch 103 to be connected to the third port 103C and the fourth port 103D of the first switch 103, respectively. Thus, the LTE signal output from the first port 101A of the rf transceiver 101 is transmitted through the switch one 103 and the antenna one 105. The LTE signal received by the antenna one 105 enters the rf transceiver 101 from the first port 101A of the rf transceiver 101 through the switch one 103. The LTE signal received by the second antenna 106 enters the rf transceiver 101 from the second port 101B of the rf transceiver 101 through the first switch 103.

The controller 102 implements NR communication by controlling the connection between the ports of the second switch 104. For example, the controller 102 may control the first port 104A, the second port 104B, the third port 104C, and the fourth port 104D of the second switch 104 to be connected to the fifth port 104E, the sixth port 104F, the seventh port 104G, and the eighth port 104H of the second switch 104, respectively. Thus, the NR signal output from the third port 101C of the rf transceiver 101 is transmitted through the second switch 104 at the third antenna 107. The LTE signal received by the antenna three 107 enters the radio frequency transceiver 101 from the third port 101C of the radio frequency transceiver 101 through the switch two 104. The LTE signal received by the antenna four 108 enters the radio frequency transceiver 101 from the fourth port 101D of the radio frequency transceiver 101 through the switch two 104. The LTE signal received by the antenna five 109 enters the radio frequency transceiver 101 from the fifth port 101E of the radio frequency transceiver 101 through the switch two 104. The LTE signal received by the antenna six 110 enters the radio frequency transceiver 101 from the sixth port 101F of the radio frequency transceiver 101 via the switch two 104.

The LTE communication and the NR communication use different switches and antennas, and the LTE signal and the NR signal do not interfere with each other when the terminal device is in the endec communication.

However, the radio frequency circuit includes 6 antennas, and the number of the antennas is large, so that the occupied space is large.

In view of this, an embodiment of the present application provides a radio frequency circuit, which realizes antenna sharing by changing port connection of a switch, and receives an LTE signal and an NR signal on one antenna at the same time, thereby reducing the number of antennas, reducing the space occupied by the antennas, and reducing the volume of a terminal device.

For ease of understanding, the examples are given in part for illustration of concepts related to embodiments of the present application.

1. An LTE signal: refers to signals transmitted according to the LTE series communication protocols. LTE signals include, but are not limited to: LTE data signals transmitted over an LTE Physical Downlink Shared Channel (PDSCH) or an LTE physical uplink shared channel (PU-SCH), LTE control signals transmitted over an LTE Physical Downlink Control Channel (PDCCH) or an LTE enhanced PDCCH (ePDCCH) or an LTE Physical Uplink Control Channel (PUCCH), and LTE reference signals (e.g., channel state information reference signals (CSI-RS), Common Reference Signals (CRS), demodulation reference symbols (DMRS), primary and secondary synchronization signals, etc.), as well as LTE signals transmitted over an LTE Physical Broadcast Channel (PBCH), an LTE Radio Resource Control (RRC) higher layer protocol, and/or an LTE Medium Access Control (MAC) Control Element (CE).

2. NR Signal: refers to signals transmitted according to the NR series communication protocols. NR signals include, but are not limited to: NR data signals transmitted over NR PDSCH or NR PUSCH, NR control signals transmitted over NR PDCCH or NR pucch NR reference signals, and also other NR signals conveyed over NR PBCH, NR RRC higher layer protocol and/or NR MAC control elements.

It should be noted that the NR control signal refers to any control signal transmitted according to the NR series communication protocol. NR control signals include, but are not limited to: RRC signal, MAC Control Element (CE), and Downlink Control Information (DCI); control signals transmitted through PBCH and Remaining Minimum System Information (RMSI); there are also any other cell-specific, group-specific and/or UE-specific control signals. The RMSI may include certain minimum system information that is not transmitted in the PBCH. The RMSI may be transmitted through the PDSCH. The PDSCH resources transmitting the RMSI may be identified by a DCI message transmitted through a common search space in the PDCCH. The DCI message may be CRC scrambled with a common RNTI such as a system information RNTI (SI-RNTI).

3. An antenna: a kind of converter. The antenna is used for converting radio frequency signals into electromagnetic waves with corresponding wavelengths and radiating the electromagnetic waves into the air, and/or is used for receiving the electromagnetic waves and converting the electromagnetic waves into corresponding radio frequency signals. It will be appreciated that the same antenna may transmit radio frequency signals as well as receive radio frequency signals. The radio frequency signals may include LTE signals and NR signals, among others.

4. A radio frequency transceiver: for outputting radio frequency signals and performing signal processing on the radio frequency signals received by the antenna. Signal processing includes, but is not limited to, frequency conversion, demodulation, analog-to-digital conversion, and the like. The radio frequency transceiver may include: a frequency-division duplex (FDD), a time-division duplex (TDD), a switch and/or a combiner, etc. Both FDD and TDD are used to separate the transmit and receive signals in the path, reducing the interference between the transmit and receive signals. The switch and the combiner can divide one path of signals into two paths of signals, so that different signals can be conveniently and subsequently separated and processed. The embodiment of the present application does not limit or explain the processing procedure of the radio frequency signal.

5. A controller: for controlling the relative settings of the radio frequency signal transmission path and/or the radio frequency signal reception path. The related settings include: port selection of a radio frequency transceiver in the radio frequency circuit, setting of a switch unit in the radio frequency circuit, and the like. In the embodiment of the present application, the controller is configured to control connection of a plurality of ports in the switch unit.

6. SRS: the method is used for network equipment such as a base station and the like to determine the position, the channel quality and the like of the terminal equipment. Illustratively, the terminal device reports the states of the 4 antennas to a network device such as a base station by transmitting SRS through the 4 antennas in turn. And the network equipment carries out channel estimation according to the SRS from the terminal equipment.

The technical means shown in the present application will be described in detail below with reference to specific examples. It should be noted that, for the same or similar contents, description is not repeated in different embodiments.

The antenna sharing can be realized through the peer-to-peer switch and/or the non-peer switch. The radio frequency circuit implementing antenna sharing by means of peer-to-peer switches is described below in connection with fig. 2-22.

Fig. 2 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present disclosure. As shown in fig. 2, the rf circuit includes: a radio frequency transceiver 201, a controller 202, a first switch 203, a second switch 204, a first antenna 205, a second antenna 206, a third antenna 207, a fourth antenna 208, and a fifth antenna 209.

The radio frequency transceiver 201 is configured to output LTE signals and/or NR signals, and perform signal processing on the LTE signals and/or NR signals received by one or more antennas. Signal processing includes, but is not limited to, frequency conversion, demodulation, analog-to-digital conversion, and the like. The radio frequency transceiver 201 includes 5 ports, wherein a first port 201A is used for transmitting and receiving LTE signals; the second port 201B is used for receiving LTE signals and NR signals; the third port 201C is used for transmitting and receiving NR signals; the fourth port 201D is for receiving an NR signal; the fifth port 201E is for receiving an NR signal. The third port 201C is also used for transmitting sounding reference signals SRS.

The radio frequency transceiver 201 may include: FDD, TDD, switch and/or combiner, etc.

It should be noted that FDD is used to separate the LTE signal transmitted from the first port 201A of the radio frequency transceiver 201 and the received LTE signal, and/or the NR signal transmitted from the third port 201C and the received NR signal. TDD works the same as FDD, and FDD may be substituted for TDD in a possible implementation.

The switch is configured to divide the LTE signal received by the second port 201B of the radio frequency transceiver 201 into two paths and the received NR signal, so as to facilitate subsequent separation and processing of the received LTE signal and the received NR signal. The switch and the combiner function the same, and in a possible implementation, the switch may be replaced by the combiner.

The controller 202 is configured to control settings of the first switch 203 and the second switch 204, so that the first antenna 205, the second antenna 206, the third antenna 207, the fourth antenna 208, and/or the fifth antenna 209 transmit and/or receive radio frequency signals, thereby implementing 2 × 2MIMO for LTE, 4 × 4MIMO for NR, and SRS round-robin. The radio frequency signals may include LTE signals, NR signals, and SRS.

In 4 × 4MIMO of 2 × 2MIMO and NR of LTE, the controller 202 is configured to control settings of the first switch 203 and the second switch 204 such that the first antenna 205 is configured to transmit and receive LTE signals, the second antenna 206 is configured to receive LTE signals and/or NR signals, any one of the third antenna 207, the fourth antenna 208, and the fifth antenna 209 is configured to transmit NR signals, and the third antenna 207, the fourth antenna 208, and the fifth antenna 209 are configured to receive NR signals; alternatively, the first antenna 205 is used for receiving LTE signals and/or NR signals, the second antenna 206 is used for transmitting and receiving LTE signals, any one of the third antenna 207, the fourth antenna 208, and the fifth antenna 209 is used for transmitting NR signals, and the third antenna 207, the fourth antenna 208, and the fifth antenna 209 are all used for receiving NR signals.

In the SRS transmission process, the controller 202 is configured to control the settings of the first switch 203 and the second switch 204, and further control the second antenna 206, the third antenna 207, the fourth antenna 208, or the fifth antenna 209 to transmit the SRS when the first antenna 205 is configured to transmit and receive LTE signals; alternatively, when the second antenna 206 is used for transmitting and receiving LTE signals, the first antenna 205, the third antenna 206, the fourth antenna 207, or the fifth antenna 208 is controlled to transmit SRS.

It should be noted that the controller 202 may be a separate device, or may form a device with the rf transceiver 201.

It is understood that the first switch 203 and the second switch 204 may be collectively referred to as a switching unit. The first switch 203 and the second switch 204 are both connected to the controller 202.

The first switch 203 comprises 6 ports. The first port 203A and the second port 203B of the first switch 203 are respectively connected with the first port 201A and the second port 201B of the radio frequency transceiver 201; the third port 203C of the first switch 203 is connected to the fourth port 204D of the second switch 204; the fourth port 203D, the fifth port 203E, and the sixth port 203F of the first switch 203 are connected to the first antenna 205, the second antenna 206, and the third antenna 207, respectively. The first switch 203 is a three-pole, three-throw switch (3P3T) or other switch.

The second switch 204 includes 6 ports. The first port 204A, the second port 204B, and the third port 204C of the second switch 204 are respectively connected to the third port 201C, the fourth port 201D, and the fifth port 201E of the rf transceiver 201; the fourth port 204D of the second switch 204 is connected to the third port 203C of the first switch 203; the fifth port 204E and the sixth port 204F of the second switch 204 are connected to the fourth antenna 208 and the fifth antenna 209, respectively. The second switch 204 is a three-pole, three-throw switch (3P3T) or other switch.

The first antenna 205 may be used for transmitting and/or receiving LTE signals and may also be used for transmitting and/or receiving NR signals. The second antenna 206 may be used for transmitting and/or receiving LTE signals and may also be used for transmitting and/or receiving NR signals. The third antenna 207, the fourth antenna 208, and the fifth antenna 209 are used to transmit and/or receive NR signals.

In the embodiment of the present application, the first antenna 205 and the second antenna 206 both support LTE signals and NR signals. The third antenna 207, the fourth antenna 208, and the fifth antenna 209 all support NR signals.

In one possible implementation, the frequency bands supported by the first antenna 205 and the second antenna 206 are in the range of 824MHz-2170MHz and 2496MHz-2690 MHz. The frequency band supported by the third antenna 207, the fourth antenna 208 and the fifth antenna 209 is in the range of 2496MHz-2690 MHz.

In a second possible implementation manner, the frequency bands supported by the first antenna 205 and the second antenna 206 range from 1710MHz to 2690MHz and from 3300MHz to 5000 MHz. The frequency band supported by the third antenna 207, the fourth antenna 208 and the fifth antenna 209 ranges from 3300MHz to 5000 MHz.

In a third possible implementation manner, the frequency bands supported by the first antenna 205 and the second antenna 206 are in the range of 1710MHz to 2690MHz and 730MHz to 803 MHz. The third antenna 207, the fourth antenna 208 and the fifth antenna 209 support a frequency band in the range of 730MHz to 803 MHz.

It should be noted that there are many kinds of antennas, and radio frequency signals corresponding to different antennas may be the same or different. The embodiments of the present application do not limit this. Therefore, corresponding radio frequency signals can be transmitted on the proper antenna, and the communication quality is improved.

A possible connection of the first switch 203 and the second switch 204 in the radio frequency circuit shown in fig. 2 is described below with reference to fig. 3-8.

When the terminal device performs LTE communication, reference may be made to fig. 3 and fig. 4 for connection of the first switch 203 and the second switch 204 in the radio frequency circuit.

Exemplarily, fig. 3 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 3, the first port 203A and the second port 203B of the first switch 203 are connected to the fourth port 203D and the fifth port 203E of the first switch 203, respectively.

In the embodiment of the present application, the LTE signal output from the first port 201A of the radio frequency transceiver 201 is transmitted on the first antenna 205 through the first switch 203. The LTE signal received by the first antenna 205 enters the rf transceiver 201 from the first port 201A of the rf transceiver 201 via the first switch 203. The LTE signal received by the second antenna 206 enters the rf transceiver 201 from the second port 201B of the rf transceiver 201 via the first switch 203.

In this way, the terminal device can implement LTE communication.

Exemplarily, fig. 4 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 4, the first port 203A and the second port 203B of the first switch 203 are connected to the fifth port 203E and the fourth port 203D of the first switch 203, respectively.

In the embodiment of the present application, the LTE signal output from the first port 201A of the radio frequency transceiver 201 is transmitted on the second antenna 206 via the first switch 203. The LTE signal received by the second antenna 206 enters the rf transceiver 201 from the first port 201A of the rf transceiver 201 via the first switch 203. The LTE signal received by the first antenna 205 enters the rf transceiver 201 from the second port 201B of the rf transceiver 201 via the first switch 203.

Therefore, the terminal equipment realizes the switching between the first antenna and the second antenna by changing the connection mode of the first switch, so that a proper antenna can be selected to transmit an LTE signal, and the quality of the LTE signal is improved. The applicability of the terminal device increases.

When the terminal device performs SRS transmission, reference may be made to fig. 5 and fig. 6 for connection of the first switch 203 and the second switch 204 in the radio frequency circuit.

For example, fig. 5 is a schematic diagram of an antenna configuration during SRS transmission provided in an embodiment of the present application. As shown in fig. 5, when the first port 203A of the first switch 203 is connected with the fourth port 203D of the first switch 203, the controller 202 controls the first port 204A of the second switch 204 and the third port 203C of the first switch 203 to be connected with the fourth port 204D of the second switch 204 and the fifth port 203E of the first switch 203, respectively; or controlling the first port 204A of the second switch 204 and the third port 203C of the first switch 203 to be connected with the fourth port 204D of the second switch 204 and the sixth port 203F of the first switch 203, respectively; or the first port 204A of the second switch 204 is controlled to be connected with the fifth port 204E of the second switch 204; or to control the connection of the first port 204A of the second switch 204 with the sixth port 204F of the second switch 204.

In the embodiment of the present application, the LTE signal output from the first port 201A of the radio frequency transceiver 201 is transmitted on the first antenna 205 through the first switch 203, and the LTE signal received by the first antenna 205 enters the radio frequency transceiver 201 from the first port 201A of the radio frequency transceiver 201 through the first switch 203.

The SRS output from the third port 201C of the radio frequency transceiver 201 is transmitted on the second antenna 206 or the third antenna 207 via the second switch 204 and the first switch 203; the SRS output from the third port 201C of the radio frequency transceiver 201 is transmitted through the second switch 204 on the fourth antenna 208 or the fifth antenna 209.

It is understood that when the first antenna 205 is used for transmitting and receiving LTE signals, the SRS output from the third port 201C of the radio frequency transceiver 201 may be transmitted on the second antenna 206, the third antenna 207, the fourth antenna 208, or the fifth antenna 209 by turns. The present embodiment does not limit the order in which the SRS is transmitted through the second antenna 206, the third antenna 207, the fourth antenna 208, or the fifth antenna 209.

For example, fig. 6 is a schematic diagram of an antenna configuration during SRS transmission provided in an embodiment of the present application. As shown in fig. 6, when the first port 203A of the first switch 203 is connected with the fifth port 203E of the first switch 203, the controller 202 controls the first port 204A of the second switch 204 and the third port 203C of the first switch 203 to be connected with the fourth port 204D of the second switch 204 and the fourth port 203D of the first switch 203, respectively; or controlling the first port 204A of the second switch 204 and the third port 203C of the first switch 203 to be connected with the fourth port 204D of the second switch 204 and the sixth port 203F of the first switch 203, respectively; or the first port 204A of the second switch 204 is controlled to be connected with the fifth port 204E of the second switch 204; or to control the connection of the first port 204A of the second switch 204 with the sixth port 204F of the second switch 204.

In the embodiment of the present application, the LTE signal output from the first port 201A of the radio frequency transceiver 201 is transmitted on the second antenna 206 through the first switch 203, and the LTE signal received by the second antenna 206 enters the radio frequency transceiver 201 from the first port 201A of the radio frequency transceiver 201 through the first switch 203.

The SRS output from the third port 201C of the radio frequency transceiver 201 is transmitted on the first antenna 205 or the third antenna 207 via the second switch 204 and the first switch 203; the SRS output from the third port 201C of the radio frequency transceiver 201 is transmitted through the second switch 204 on the fourth antenna 208 or the fifth antenna 209.

It is understood that when the second antenna 206 is used for transmitting and receiving LTE signals, the SRS output from the third port 201C of the radio frequency transceiver 201 may be transmitted on the first antenna 205, the third antenna 207, the fourth antenna 208, or the fifth antenna 209 by turns. The present embodiment does not limit the order in which the SRS is transmitted through the first antenna 205, the third antenna 207, the fourth antenna 208, or the fifth antenna 209.

It can be understood that, in the connection manner shown in fig. 5 and fig. 6, when SRS is transmitted in turn, the LTE signal transmission is not affected, and the LTE signal interruption condition can be avoided. And the time of the SRS transmitting process is short, and the influence on the receiving of LTE signals is small. Therefore, the terminal equipment realizes the coexistence of the LTE communication and the SRS transmission by changing the connection mode of the first switch and the second switch.

When the terminal device performs the ENDC communication, reference may be made to fig. 7 and 8 for connection of the first switch 203 and the second switch 204 in the radio frequency circuit.

Fig. 7 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 7, the first port 203A, the second port 203B, and the third port 203C of the first switch 203 are connected to the fourth port 203D, the fifth port 203E, and the sixth port 203F of the first switch 203, respectively; the first port 204A, the second port 204B, and the third port 204C of the second switch 204 are connected to the fourth port 204D, the fifth port 204E, and the sixth port 204F of the second switch 204, respectively.

In the embodiment of the present application, the LTE signal output from the first port 201A of the radio frequency transceiver 201 is transmitted on the first antenna 205 through the first switch 203. The LTE signal received by the first antenna 205 enters the rf transceiver 201 from the first port 201A of the rf transceiver 201 via the first switch 203. The LTE signal and/or the NR signal received by the second antenna 206 enters the radio frequency transceiver 201 from the second port 201B of the radio frequency transceiver 201 via the first switch 203.

The NR signal output from the third port 201C of the radio frequency transceiver 201 is transmitted on the third antenna 207 via the second switch 204 and the first switch 203. The NR signal received by the third antenna 207 enters the radio frequency transceiver 201 from the third port 201C of the radio frequency transceiver 201 through the first switch 203 and the second switch 204. The NR signal received by the fourth antenna 208 and the NR signal received by the fifth antenna 209 enter the rf transceiver 201 from the fourth port 201D and the fifth port 201E of the rf transceiver 201 through the second switch 204, respectively.

In this way, the terminal device can implement dual connectivity communication of LTE and NR.

Exemplarily, fig. 8 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 8, the first port 203A, the second port 203B, and the third port 203C of the first switch 203 are connected to the fifth port 203E, the fourth port 203D, and the sixth port 204F of the first switch 203, respectively; the first port 204A, the second port 204B, and the third port 204C of the second switch 204 are connected to the fourth port 204D, the fifth port 204E, and the sixth port 204F of the second switch 204, respectively.

In the embodiment of the present application, the LTE signal output from the first port 201A of the radio frequency transceiver 201 is transmitted on the second antenna 206 via the first switch 203. The LTE signal received by the second antenna 206 enters the rf transceiver 201 from the first port 201A of the rf transceiver 201 via the first switch 203. The LTE signal and/or the NR signal received by the first antenna 205 enters the radio frequency transceiver 201 from the second port 201B of the radio frequency transceiver 201 via the first switch 203.

The NR signal output from the third port 201C of the radio frequency transceiver 201 is transmitted on the third antenna 207 via the second switch 204 and the first switch 203. The NR signal received by the third antenna 207 enters the radio frequency transceiver 201 from the third port 201C of the radio frequency transceiver 201 through the first switch 203 and the second switch 204. The NR signal received by the fourth antenna 208 enters the rf transceiver 201 from the fourth port 201D of the rf transceiver 201 through the second switch 204. The NR signal received by the fifth antenna 209 enters the rf transceiver 201 from the fifth port 201E of the rf transceiver 201 through the second switch 204.

In a possible implementation manner, in the connection manner corresponding to fig. 7 and 8, the ports connected to the first port 204A, the second port 204B, and the third port 204C of the second switch 204 may be connected to each other in an interchangeable manner. Thus, the NR signal may be transmitted on the third antenna 207 or the fourth antenna 208 or the fifth antenna 209. Illustratively, the ports of the second switch 204 to which the first port 204A and the second port 204B are connected are replaced, and the first port 204A and the second port 204B of the second switch 204 are connected to the fifth port 204E and the fourth port 204C of the second switch 204, respectively; the NR signal is transmitted on a fourth antenna 208.

Therefore, the terminal equipment realizes the switching of the third antenna, the fourth antenna and the fifth antenna by changing the connection mode of the second switch, and further can select a proper antenna to transmit the NR signal.

The antenna configuration in NR communication may refer to an antenna configuration when an NR signal is transmitted and/or received in the aforementioned endec communication, and a connection manner of the first switch and the second switch in NR communication is similar to a connection manner when an NR signal is transmitted and/or received in the aforementioned endec communication, and is not described here again.

In summary, in the radio frequency circuit shown in fig. 2, the terminal device can implement LTE communication, SRS transmission and endec communication by using 5 antennas and changing the connection mode of the first switch and/or the connection mode of the second switch, thereby implementing a dual-mode function of SA and NSA. The number of the antennas is reduced, the space occupied by the antennas is reduced, and the size of the terminal equipment is reduced. The terminal equipment can also select a proper antenna to transmit an LTE signal and/or an NR signal, so that the throughput rate is improved. And the transmission of LTE signals is not influenced when the SRS is transmitted in turn or NR is communicated.

Fig. 9 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application. As shown in fig. 9, the rf circuit includes: a radio frequency transceiver 901, a controller 902, a third switch 903, a first antenna 904, a second antenna 905, a third antenna 906, a fourth antenna 907, and a fifth antenna 908.

The structures and functions of the radio frequency transceiver 901, the controller 902, the first antenna 904, the second antenna 905, the third antenna 906, the fourth antenna 907 and the fifth antenna 908 can refer to the related concepts described above and the description of the corresponding structures of the radio frequency circuit shown in fig. 2, and are not described again here.

The controller 902 is configured to control the setting of the third switch 903, so that the first antenna 904, the second antenna 905, the third antenna 906, the fourth antenna 907, and/or the fifth antenna 908 transmit and/or receive radio frequency signals, thereby implementing 2 × 2MIMO for LTE, 4 × 4MIMO for NR, and SRS transmission.

In 4 × 4MIMO of 2 × 2MIMO and NR of LTE, the controller 902 is configured to control the setting of the third switch 903 such that the first antenna 904 is configured to transmit and receive LTE signals, the second antenna 905 is configured to receive LTE signals and/or NR signals, any one of the third antenna 906, the fourth antenna 907, and the fifth antenna 908 is configured to transmit NR signals, and the third antenna 906, the fourth antenna 907, and the fifth antenna 908 are configured to receive NR signals; alternatively, the first antenna 904 is made to receive LTE signals and/or NR signals, the second antenna 905 is made to transmit and receive LTE signals, any one of the third antenna 906, the fourth antenna 907, and the fifth antenna 908 is made to transmit NR signals, and the third antenna 906, the fourth antenna 907, and the fifth antenna 908 are all made to receive NR signals.

In the SRS transmission process, the controller 902 is configured to control the setting of the third switch 903, so that when the first antenna 904 is configured to transmit and receive an LTE signal, the second antenna 905, the third antenna 906, the fourth antenna 907, or the fifth antenna 908 transmits an SRS; alternatively, when the second antenna 905 is used for transmitting and receiving LTE signals, the first antenna 904, the third antenna 906, the fourth antenna 907, or the fifth antenna 908 are controlled to transmit SRS.

The controller 902 is connected to the third switch 903. It is to be understood that the third switch 903 may also be referred to as a switching unit.

The third switch 903 includes 10 ports. A first port 903A, a second port 903B, a third port 903C, a fourth port 903D, and a fifth port 903E of the third switch 903 are connected to a first port 901A, a second port 901B, a third port 901C, a fourth port 901D, and a fifth port 901E of the radio frequency transceiver 901, respectively; the sixth port 903F, the seventh port 903G, the eighth port 903H, the ninth port 903I, and the tenth port 903J of the third switch 903 are connected to the first antenna 904, the second antenna 905, the third antenna 906, the fourth antenna 907, and the fifth antenna 908, respectively. The third switch 903 is also connected to the controller 902. The third switch 903 may be a five-pole five-throw switch (5P5T) or other switch.

A possible connection of the third switch 903 in the radio frequency circuit shown in fig. 9 is described below with reference to fig. 10 to 15.

When the terminal device performs LTE communication, connection of the third switch 903 in the radio frequency circuit can refer to fig. 10 and 11.

Fig. 10 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present disclosure. As shown in fig. 10, the first port 903A and the second port 903B of the third switch 903 are connected to the sixth port 903F and the seventh port 903G of the third switch 903, respectively.

In the embodiment of the present application, an LTE signal output from the first port 901A of the radio frequency transceiver 901 is transmitted on the first antenna 904 through the third switch 903. LTE signals received by the first antenna 904 enter the radio-frequency transceiver 901 from the first port 901A of the radio-frequency transceiver 901 via the third switch 903. LTE signals received by the second antenna 905 enter the radio-frequency transceiver 901 from the second port 901B of the radio-frequency transceiver 901 via the third switch 903.

In this way, the terminal device can implement LTE communication.

Exemplarily, fig. 11 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 11, the first port 903A and the second port 903B of the third switch 903 are connected to the seventh port 903G and the sixth port 903F of the third switch 903, respectively.

In the embodiment of the present application, an LTE signal output from the first port 901A of the radio frequency transceiver 901 is transmitted on the second antenna 905 through the third switch 903. The LTE signal received by the second antenna 905 enters the radio frequency transceiver 901 from the first port 901A of the radio frequency transceiver 901 via the third switch 903. LTE signals received by the first antenna 904 enter the radio-frequency transceiver 901 from the second port 901B of the radio-frequency transceiver 901 via the third switch 903.

Therefore, the terminal equipment realizes the switching of the first antenna and the second antenna by changing the connection mode of the third switch, so that a proper antenna can be selected to transmit the LTE signal, and the quality of the LTE signal is improved. The applicability of the terminal device increases.

When the terminal device performs SRS transmission, reference may be made to fig. 12 and 13 for connection of the third switch 903 in the radio frequency circuit.

Fig. 12 is a schematic diagram of an antenna configuration in SRS transmission according to an embodiment of the present application. As shown in fig. 12, when the first port 903A of the third switch 903 is connected with the sixth port 903F of the third switch 903, the controller 902 controls the third port 903C of the third switch 903 to be connected with the seventh port 903G of the third switch 903; or controlling the third port 903C of the third switch 903 to be connected with the seventh port 903G of the third switch 903; or controlling the third port 903C of the third switch 903 to be connected with the seventh port 903G of the third switch 903; or the third port 903C of the third switch 903 is controlled to be connected to the seventh port 903G of the third switch 903.

In this embodiment, the LTE signal output from the first port 901A of the radio frequency transceiver 901 is transmitted on the first antenna 904 through the third switch 903, and the LTE signal received by the first antenna 904 enters the radio frequency transceiver 901 from the first port 901A of the radio frequency transceiver 901 through the third switch 903.

The SRS output from the third port 901C of the radio frequency transceiver 901 may be transmitted on the second antenna 905, the third antenna 906, the fourth antenna 907, or the fifth antenna 907 via the third switch 903.

It is understood that when the first antenna 904 is used for transmitting and receiving LTE signals, the SRS output from the third port 901C of the radio frequency transceiver 901 may be transmitted on the second antenna 905, the third antenna 906, the fourth antenna 907, or the fifth antenna 907 by turns. In the embodiment of the present application, the SRS is transmitted from the second antenna 905, the third antenna 906, the fourth antenna 907, or the fifth antenna 907 in no particular order.

For example, fig. 13 is a schematic diagram of an antenna configuration during SRS transmission provided in an embodiment of the present application. As shown in fig. 13, when the first port 903A of the third switch 903 is connected with the seventh port 903G of the third switch 903, the controller 902 controls the third port 903C of the third switch 903 to be connected with the sixth port 903F of the third switch 903; or controlling the third port 903C of the third switch 903 to be connected with the seventh port 903G of the third switch 903; or controlling the third port 903C of the third switch 903 to be connected with the seventh port 903G of the third switch 903; or the third port 903C of the third switch 903 is controlled to be connected to the seventh port 903G of the third switch 903.

In this embodiment, the LTE signal output from the first port 901A of the radio frequency transceiver 901 is transmitted on the second antenna 905 through the third switch 903, and the LTE signal received by the second antenna 905 enters the radio frequency transceiver 901 from the first port 901A of the radio frequency transceiver 901 through the third switch 903.

The SRS output from the third port 901C of the radio frequency transceiver 901 may be transmitted on the first antenna 904, the third antenna 906, the fourth antenna 907, or the fifth antenna 907 via the third switch 903.

It is understood that when the second antenna 905 is used for transmitting and receiving LTE signals, the SRS output from the third port 901C of the radio frequency transceiver 901 may be transmitted on the first antenna 904, the third antenna 906, the fourth antenna 907, or the fifth antenna 907 by turns. The SRS is transmitted from the first antenna 904, the third antenna 906, the fourth antenna 907 or the fifth antenna 907 in no way limited in this embodiment.

It can be understood that, in the connection manner shown in fig. 12 and 13, when SRS is transmitted in turn, LTE signal transmission is not affected, and LTE signal interruption can be avoided. And the time of the SRS transmitting process is short, and the influence on the receiving of LTE signals is small. In this way, the terminal device realizes the coexistence of the LTE communication and the SRS transmission by changing the connection mode of the third switch.

When the terminal device performs the ENDC communication, connection of the third switch 903 in the radio frequency circuit can refer to fig. 14 and 15.

Fig. 14 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 14, the first port 903A, the second port 903B, the third port 903C, the fourth port 903D, and the fifth port 903E of the third switch 903 are connected to the sixth port 903F, the seventh port 903G, the eighth port 903H, the ninth port 903I, and the tenth port 903J of the third switch 903, respectively.

In the embodiment of the present application, an LTE signal output from the first port 901A of the radio frequency transceiver 901 is transmitted on the first antenna 904 through the third switch 903. LTE signals received by the first antenna 904 enter the radio-frequency transceiver 901 from the first port 901A of the radio-frequency transceiver 901 via the third switch 903. LTE signals and/or NR signals received by the second antenna 905 enter the radio-frequency transceiver 901 from the second port 901B of the radio-frequency transceiver 901 via the third switch 903.

The NR signal output from the third port 901C of the radio frequency transceiver 901 is transmitted on the third antenna 906 via the third switch 903. The NR signal received by the third antenna 906, the NR signal received by the fourth antenna 907, and the NR signal received by the fifth antenna 908 enter the radio frequency transceiver 901 through the third switch 903 from the third port 901C, the fourth port 901D, and the fifth port 901E of the radio frequency transceiver 901, respectively.

Fig. 15 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 15, the first port 903A, the second port 903B, the third port 903C, the fourth port 903D, and the fifth port 903E of the third switch 903 are connected to the seventh port 903G, the sixth port 903F, the eighth port 903H, the ninth port 903I, and the tenth port 903J of the third switch 903, respectively.

In the embodiment of the present application, an LTE signal output from the first port 901A of the radio frequency transceiver 901 is transmitted on the second antenna 905 through the third switch 903. The LTE signal received by the second antenna 905 enters the radio frequency transceiver 901 from the first port 901A of the radio frequency transceiver 901 via the third switch 903. LTE signals and/or NR signals received by the first antenna 904 enter the radio-frequency transceiver 901 from the second port 901B of the radio-frequency transceiver 901 via the third switch 903.

In a possible implementation manner, in the connection manner corresponding to fig. 14 and 15, the ports of the third switch 903 connected to the third port 903C, the fourth port 903D, and the fifth port 903E of the third switch 903 may be replaced with each other. Thus, NR signals may be transmitted on the third antenna 906, the fourth antenna 907, or the fifth antenna 907.

In this way, the terminal device realizes switching of the third antenna, the fourth antenna and the fifth antenna by changing the connection mode of the third switch, and further can select a proper antenna to transmit the NR signal.

The antenna configuration in NR communication may refer to the antenna configuration when an NR signal is transmitted and/or received in the aforementioned endec communication, and the connection manner of the third switch in NR communication is similar to the connection manner when an NR signal is transmitted and/or received in the aforementioned endec communication, and is not described here again.

In summary, in the radio frequency circuit shown in fig. 9, the terminal device realizes dual-mode functions of SA and NSA by 5 antennas and changing the connection mode of the third switch, for LTE communication, SRS transmission, and endec communication. The number of the antennas is reduced, the space occupied by the antennas is reduced, and the size of the terminal equipment is reduced. The terminal equipment can also select a proper antenna to transmit an LTE signal and/or an NR signal, so that the throughput rate is improved. And the transmission of LTE signals is not influenced when the SRS is transmitted in turn or NR is communicated.

Fig. 16 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application. As shown in fig. 16, the rf circuit includes: a radio frequency transceiver 1601, a controller 1602, a fourth switch 1603, a fifth switch 1604, a first antenna 1605, a second antenna 1606, a third antenna 1607, a fourth antenna 1608, and a fifth antenna 1609.

The structures and functions of the radio frequency transceiver 1601, the controller 1602, the first antenna 1605, the second antenna 1606, the third antenna 1607, the fourth antenna 1608, and the fifth antenna 1609 can refer to the related concepts described above and the description of the corresponding structures of the radio frequency circuit shown in fig. 2, and are not described herein again.

The controller 1602 is configured to control the settings of the fourth switch 1603 and the fifth switch 1604, so that the first antenna 1605, the second antenna 1606, the third antenna 1607, the fourth antenna 1608, and/or the fifth antenna 1609 transmit and/or receive radio frequency signals, thereby implementing 2 × 2MIMO for LTE, 4 × 4MIMO for NR, and SRS round-robin.

In 4 × 4MIMO of 2 × 2MIMO and NR of LTE, the controller 1602 is configured to control settings of the fourth switch 1603 and the fifth switch 1604 such that the first antenna 1605 is configured to transmit and receive LTE signals, the second antenna 1606 is configured to receive LTE signals and/or NR signals, any one of the third antenna 1607, the fourth antenna 1608, and the fifth antenna 1609 is configured to transmit NR signals, and the third antenna 1607, the fourth antenna 1608, and the fifth antenna 1609 are configured to receive NR signals; alternatively, the first antenna 1605 is made to receive LTE signals and/or NR signals, the second antenna 1606 is made to transmit and receive LTE signals, any one of the third antenna 1607, the fourth antenna 1608, and the fifth antenna 1609 is made to transmit NR signals, and the third antenna 1607, the fourth antenna 1608, and the fifth antenna 1609 are made to receive NR signals.

In the SRS forwarding process, the controller 1602 is configured to control settings of the fourth switch 1603 and the fifth switch 1604, so that when the first antenna 1605 is configured to transmit and receive an LTE signal, the second antenna 1606, the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609 transmits an SRS; alternatively, when the second antenna 1606 is used to transmit and receive LTE signals, the first antenna 1605, the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609 are controlled to transmit SRS.

It is understood that the fourth switch 1603 and the fifth switch 1604 may be collectively referred to as a switching unit. The fourth switch 1603 and the fifth switch 1604 are both connected to the controller 1602.

The fourth switch 1603 includes 4 ports. The first port 1603A of the fourth switch 1603 is connected with the first port 1601A of the radio frequency transceiver 1601; a second port 1603B of the fourth switch 1603 is connected with a fifth port 1604E of the fifth switch 1604; the third port 1603C and the fourth port 1603D of the fourth switch 1603 are connected to the first antenna 1605 and the second antenna 1606, respectively. The fourth switch 1603 is a double pole double throw switch (2P2T) or other switch.

The fifth switch 1604 includes 8 ports. A first port 1604A, a second port 1604B, a third port 1604C and a fourth port 1604D of the fifth switch 1604 are respectively connected with a second port 1601B, a third port 1601C, a fourth port 1601D and a fifth port 1601E of the radio frequency transceiver 1601; a fifth port 1604E of the fifth switch 1604 is connected to a second port 1603B of the fourth switch 1603; the sixth port 1604F, the seventh port 1604G, and the eighth port 1604H of the fifth switch 1604 are connected to the third antenna 1607, the fourth antenna 1608, and the fifth antenna 1609, respectively. The fifth switch 1604 is a four-pole, four-throw switch (4P4T) or other switch.

Next, a description will be given of a possible connection between the fourth switch 1603 and the fifth switch 1604 in the rf circuit shown in fig. 16 according to fig. 17 to fig. 22.

When the terminal device performs LTE communication, reference may be made to fig. 17 and 18 for connection of the fourth switch 1603 and the fifth switch 1604 in the radio frequency circuit.

Exemplarily, fig. 17 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 17, the first port 1603A and the second port 1603B of the fourth switch 1603 are connected with the third port 1603C and the fourth port 1603D of the fourth switch 1603, respectively; a first port 1604A of the fifth switch 1604 is connected to a fifth port 1604E of the fifth switch 1604.

In the embodiment of the present application, the LTE signal output from the first port 1601A of the radio frequency transceiver 1601 is transmitted through the fourth switch 1603 on the first antenna 1605. The LTE signal received by the first antenna 1605 enters the radio frequency transceiver 1601 from the first port 1601A of the radio frequency transceiver 1601 via the fourth switch 1603. The LTE signal received by the second antenna 1606 enters the radio frequency transceiver 1601 from the second port 1601B of the radio frequency transceiver 1601 through the fourth switch 1603 and the fifth switch 1604.

In this way, the terminal device can implement LTE communication.

Fig. 18 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present disclosure. As shown in fig. 18, the first port 1603A and the second port 1603B of the fourth switch 1603 are connected with the fourth port 1603D and the third port 1603C of the fourth switch 1603, respectively; a first port 1604A of the fifth switch 1604 is connected to a fifth port 1604E of the fifth switch 1604.

In the embodiment of the present application, the LTE signal output from the first port 1601A of the radio frequency transceiver 1601 is transmitted through the fourth switch 1603 to the second antenna 1606. The LTE signal received by the second antenna 1606 enters the radio frequency transceiver 1601 from the first port 1601A of the radio frequency transceiver 1601 via the fourth switch 1603. The LTE signal received by the first antenna 1605 enters the radio frequency transceiver 1601 from the second port 1601B of the radio frequency transceiver 1601 through the fourth switch 1603 and the fifth switch 1604.

Therefore, the terminal equipment realizes the switching between the first antenna and the second antenna by changing the connection mode of the fourth switch, so that a proper antenna can be selected to transmit an LTE signal, and the quality of the LTE signal is improved. The applicability of the terminal device increases.

When the terminal device performs SRS polling, reference may be made to fig. 19 and fig. 20 for connection of the fourth switch 1603 and the fifth switch 1604 in the radio frequency circuit.

For example, fig. 19 is a schematic diagram of an antenna configuration during SRS transmission according to an embodiment of the present application. As shown in fig. 19, when the first port 1603A of the fourth switch 1603 is connected with the third port 1603C of the fourth switch 1603, the controller 1602 controls the second port 1604B of the fifth switch 1604 and the second port 1603B of the fourth switch 1603 to be connected with the fifth port 1604E of the fifth switch 1604 and the fourth port 1603D of the fourth switch 1603, respectively; or controls the second port 1604B of the fifth switch 1604 to be connected with the sixth port 1604F of the fifth switch 1604; or controls the second port 1604B of the fifth switch 1604 to be connected with the seventh port 1604G of the fifth switch 1604; or controls the second port 1604B of the fifth switch 1604 to be connected to the eighth port 1604H of the fifth switch 1604.

In the embodiment of the present application, the LTE signal output from the first port 1601A of the radio frequency transceiver 1601 is transmitted through the fourth switch 1603 on the first antenna 1605, and the LTE signal received by the first antenna 1605 enters the radio frequency transceiver 1601 from the first port 1601A of the radio frequency transceiver 1601 through the fourth switch 1603.

The SRS output from the third port 1601C of the radio frequency transceiver 1601 is transmitted on the second antenna 1606 via the fifth switch 1604 and the fourth switch 1603; the SRS output from the third port 1601C of the radio frequency transceiver 1601 is transmitted through the fifth switch 1604 over the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609.

It is understood that, when the first antenna 1605 is used to transmit and receive the LTE signal, the SRS output from the third port 1601C of the radio frequency transceiver 1601 may be alternately transmitted on the second antenna 1606, the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609. The present embodiment does not limit the order in which the SRS is transmitted through the second antenna 1606, the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609.

For example, fig. 20 is a schematic diagram of an antenna configuration when SRS is transmitted in turn according to an embodiment of the present application. As shown in fig. 20, when the first port 1603A of the fourth switch 1603 is connected with the fourth port 1603D of the fourth switch 1603, the controller 1602 controls the second port 1604B of the fifth switch 1604 and the second port 1603B of the fourth switch 1603 to be connected with the fifth port 1604E of the fifth switch 1604 and the third port 1603C of the fourth switch 1603, respectively; or controls the second port 1604B of the fifth switch 1604 to be connected with the sixth port 1604F of the fifth switch 1604; or controls the second port 1604B of the fifth switch 1604 to be connected with the seventh port 1604G of the fifth switch 1604; or controls the second port 1604B of the fifth switch 1604 to be connected to the eighth port 1604H of the fifth switch 1604.

In this embodiment, the LTE signal output from the first port 1601A of the radio frequency transceiver 1601 is transmitted through the fourth switch 1603 to the second antenna 1606, and the LTE signal received by the second antenna 1606 enters the radio frequency transceiver 1601 from the first port 1601A of the radio frequency transceiver 1601 through the fourth switch 1603.

The SRS output from the third port 1601C of the radio frequency transceiver 1601 is transmitted on the first antenna 1605 via the fifth switch 1604 and the fourth switch 1603; the SRS output from the third port 1601C of the radio frequency transceiver 1601 is transmitted through the fifth switch 1604 over the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609.

It is understood that the SRS output from the third port 1601C of the radio frequency transceiver 1601 may be alternately transmitted over the first antenna 1605, the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609 when the second antenna 1606 is used for transmitting and receiving LTE signals. The present embodiment does not limit the order in which the SRS is transmitted through the first antenna 1605, the third antenna 1607, the fourth antenna 1608, or the fifth antenna 1609.

It can be understood that, in the connection manner shown in fig. 19 and fig. 20, when SRS is transmitted in turn, LTE signal transmission is not affected, and LTE signal interruption can be avoided. And the time of the SRS transmitting process is short, and the influence on the receiving of LTE signals is small. Therefore, the terminal equipment realizes the coexistence of the LTE communication and the SRS transmission by changing the connection mode of the fourth switch and the fifth switch.

When the terminal device performs the ENDC communication, the connection of the fourth switch 1603 and the fifth switch 1604 in the radio frequency circuit may refer to fig. 21 and fig. 22.

Exemplarily, fig. 21 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 21, the first port 1603A and the second port 1603B of the fourth switch 1603 are connected with the third port 1603C and the fourth port 1603D of the fourth switch 1603, respectively; first, second, third and

fourth ports

1604A, 1604B, 1604C, 1604D of the fifth switch 1604 are connected to fifth, sixth, seventh and

eighth ports

1604E, 1604F, 1604G, 1604H of the fifth switch 1604, respectively.

In the embodiment of the present application, the LTE signal output from the first port 1601A of the radio frequency transceiver 1601 is transmitted through the fourth switch 1603 on the first antenna 1605. The LTE signal received by the first antenna 1605 enters the radio frequency transceiver 1601 from the first port 1601A of the radio frequency transceiver 1601 via the fourth switch 1603. The LTE signal and/or NR signal received by the second antenna 1606 enters the radio frequency transceiver 1601 from the second port 1601B of the radio frequency transceiver 1601 through the fourth switch 1603 and the fifth switch 1604.

The NR signal output from the third port 1601C of the radio frequency transceiver 1601 is transmitted through the fifth switch 1604 onto the third antenna 1607. The NR signal received by the third antenna 1607, the NR signal received by the fourth antenna 1608, and the NR signal received by the fifth antenna 1609 are input to the radio-frequency transceiver 1601 from the third port 1601C, the fourth port 1601D, and the fifth port 1601E of the radio-frequency transceiver 1601 by way of the fifth switch 1604, respectively.

Fig. 22 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 22, the first port 1603A and the second port 1603B of the fourth switch 1603 are connected with the fourth port 1603D and the third port 1603C of the fourth switch 1603, respectively; first, second, third and

fourth ports

eighth ports

1604E, 1604F, 1604G, 1604H of the fifth switch 1604, respectively.

In the embodiment of the present application, the LTE signal output from the first port 1601A of the radio frequency transceiver 1601 is transmitted through the fourth switch 1603 to the second antenna 1606. The LTE signal received by the second antenna 1606 enters the radio frequency transceiver 1601 from the first port 1601A of the radio frequency transceiver 1601 via the fourth switch 1603. The LTE signal and/or NR signal received by the first antenna 1605 enters the radio frequency transceiver 1601 from the second port 1601B of the radio frequency transceiver 1601 through the fourth switch 1603 and the fifth switch 1604.

The NR signal output from the third port 1601C of the radio frequency transceiver 1601 is transmitted through the fifth switch 1604 onto the third antenna 1607. The NR signal received by the third antenna 1607, the NR signal received by the fourth antenna 1608, and the NR signal received by the fifth antenna 1609 are respectively input to the radio-frequency transceiver 1601 from the third port 1601C, the fourth port 1601D, and the fifth port 1601E of the radio-frequency transceiver 1601 by way of the fifth switch 1603.

In a possible implementation manner, in the connection manner corresponding to fig. 21 and 22, the ports connected to the second port 1604B, the third port 1604C and the fourth port 1604D of the fifth switch 1604 may be connected to each other in an interchangeable manner. Thus, the NR signal may be transmitted over the third antenna 1607, or the fourth antenna 1608, or the fifth antenna 1609.

Therefore, the terminal equipment realizes the switching of the third antenna, the fourth antenna and the fifth antenna by changing the connection mode of the fifth switch, and further can select a proper antenna to transmit the NR signal.

The antenna configuration in NR communication may refer to the antenna configuration when an NR signal is transmitted and/or received in the aforementioned endec communication, and the connection manner of the fourth switch and the fifth switch in NR communication is similar to the connection manner when an NR signal is transmitted and/or received in the aforementioned endec communication, and is not described here again.

In summary, in the radio frequency circuit shown in fig. 16, the terminal device implements LTE communication, SRS transmission and endec communication by using 5 antennas and changing the connection mode of the fourth switch and/or the connection mode of the fifth switch, thereby implementing a dual-mode function of SA and NSA. The number of the antennas is reduced, the space occupied by the antennas is reduced, and the size of the terminal equipment is reduced. The terminal equipment can also select a proper antenna to transmit an LTE signal and/or an NR signal, so that the throughput rate is improved. And the transmission of LTE signals is not influenced when the SRS is transmitted in turn or NR is communicated.

A radio frequency circuit that realizes antenna sharing by not having a pair switch will be described below with reference to fig. 23 to 29.

Fig. 23 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application. As shown in fig. 23, the rf circuit includes: a radio frequency transceiver 2301, a controller 2302, a sixth switch 2303, a seventh switch 2304, an eighth switch 2305, a first antenna 2306, a second antenna 2307, a third antenna 2308, a fourth antenna 2309, and a fifth antenna 2310.

The structures and functions of the rf transceiver 2301, the controller 2302, the first antenna 2306, the second antenna 2307, the third antenna 2308, the fourth antenna 2309 and the fifth antenna 2310 may refer to the related concepts described above and the description of the corresponding structures of the rf circuit shown in fig. 2, which are not repeated herein.

The controller 2302 is configured to control settings of the sixth switch 2303, the seventh switch 2304 and the eighth switch 2305, so that the first antenna 2306, the second antenna 2307, the third antenna 2308, the fourth antenna 2309 and/or the fifth antenna 2310 transmit and/or receive radio frequency signals, thereby implementing 2 × 2MIMO for LTE, 4 × 4MIMO for NR, and SRS transmission.

In 2 × 2MIMO of LTE and 4 × 4MIMO of NR, the controller 2302 is configured to control settings of the sixth switch 2303, the seventh switch 2304 and the eighth switch 2305 such that the first antenna 2306 is used to transmit and receive LTE signals, the second antenna 2307 is used to receive LTE signals and/or NR signals, any one of the third antenna 2308, the fourth antenna 2309 and the fifth antenna 2310 is used to transmit NR signals, and the third antenna 2308, the fourth antenna 2309 and the fifth antenna 2310 are all used to receive NR signals; alternatively, the first antenna 2306 is made to receive LTE signals and/or NR signals, the second antenna 2307 is made to transmit and receive LTE signals, any one of the third antenna 2308, the fourth antenna 2309 and the fifth antenna 2310 is made to transmit NR signals, and all of the third antenna 2308, the fourth antenna 2309 and the fifth antenna 2310 are made to receive NR signals.

In the SRS polling process, the controller 2302 is used to control the settings of the sixth switch 2303, the seventh switch 2304 and the eighth switch 2305, so that when the first antenna 2306 is used to transmit and receive LTE signals, SRS is transmitted on the second antenna 2307, the third antenna 2308, the fourth antenna 2309 or the fifth antenna 2310; alternatively, when the second antenna 2307 is used for transmitting and receiving LTE signals, the SRS is transmitted over the first antenna 2306, the third antenna 2308, the fourth antenna 2309, or the fifth antenna 2310.

It is understood that the sixth switch 2303, the seventh switch 2304 and the eighth switch 2305 may be collectively referred to as a switching unit. The sixth switch 2303, the seventh switch 2304, and the eighth switch 2305 are all connected to the controller 2302.

The sixth switch 2303 includes 6 ports. The first port 2303A and the second port 2303B of the sixth switch 2303 are connected with the first port 2301A and the second port 2301B of the radio frequency transceiver 2301, respectively; the third port 2303C of the sixth switch is open; a fourth port 2303D of the sixth switch is connected with a third port 2304C of the seventh port; a fifth port 2303E and a sixth port 2303F of the sixth switch 2303 are connected to the first antenna 2306 and the second antenna 2307, respectively. The sixth switch 2303 may be a double pole, four throw switch (DP 4T).

The seventh switch 2304 includes 6 ports. The first port 2304A and the second port 2304B of the seventh switch 2304 are connected with the third port 2301C and the fourth port 2301D of the radio frequency transceiver 2301, respectively; the third port 2304C of the seventh switch 2304 is connected with the fourth port 2303D of the sixth switch 2303; the fourth port 2304D of the seventh switch 2304 is connected with the second port 2305B of the eighth switch 2305; a fifth port 2304E and a sixth port 2304F of the seventh switch 2304 are connected with the third antenna 2308 and the fourth antenna 2309, respectively. The seventh switch 2304 may be a double pole, four throw switch (DP 4T).

The eighth switch 2305 includes 3 ports. A first port 2305A of the eighth switch 2305 is connected with a fifth port 2301E of the radio frequency transceiver 2301; the second port 2305B of the eighth switch 2305 is connected with the fourth port 2304D of the seventh switch 2304; the third port 2305C of the eighth switch 2305 is connected to the fifth antenna 2310. The eighth switch 2305 may be a single-pole double-throw switch (SP 2T).

Next, a description will be given of possible connection of the sixth switch 2303, the seventh switch 2304 and the eighth switch 2305 in the radio frequency circuit shown in fig. 23 with reference to fig. 24 to 29.

When the terminal device performs LTE communication, reference may be made to fig. 24 and 25 for connection of the sixth switch 2303, the seventh switch 2304, and the eighth switch 2305 in the radio frequency circuit.

Exemplarily, fig. 24 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 24, the first port 2303A and the second port 2303B of the sixth switch 2303 are connected to the fifth port 2303E and the sixth port 2303F of the sixth switch 2303, respectively.

In the embodiment of the present application, the LTE signal output from the first port 2301A of the radio frequency transceiver 2301 is transmitted through the sixth switch 2303 on the first antenna 2306. An LTE signal received by the first antenna 2306 enters the rf transceiver 2301 from the first port 2301A of the rf transceiver 2301 via the sixth switch 2303. The LTE signal received by the second antenna 2307 enters the rf transceiver 2301 from the second port 2301B of the rf transceiver 2301 via the sixth switch 2303.

In this way, the terminal device can implement LTE communication.

Exemplarily, fig. 25 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 25, the first port 2303A and the second port 2303B of the sixth switch 2303 are connected to the sixth port 2303F and the fifth port 2303E of the sixth switch 2303, respectively.

In the embodiment of the present application, the LTE signal output from the first port 2301A of the radio frequency transceiver 2301 is transmitted on the second antenna 2307 through the sixth switch 2303. The LTE signal received by the second antenna 2307 enters the rf transceiver 2301 from the first port 2301A of the rf transceiver 2301 via the sixth switch 2303. The LTE signal received by the first antenna 2306 enters the rf transceiver 2301 from the second port 2301B of the rf transceiver 2301 via the sixth switch 2303.

Therefore, the terminal equipment realizes the switching between the first antenna and the second antenna by changing the connection mode of the sixth switch, and further can select a proper antenna to transmit an LTE signal.

When the terminal device performs SRS polling, reference may be made to fig. 26 and 27 for connection of the sixth switch 2303, the seventh switch 2304, and the eighth switch 2305 in the radio frequency circuit.

For example, fig. 26 is a schematic diagram of an antenna configuration when SRS is transmitted in turn according to an embodiment of the present application. As shown in fig. 26, when the first port 2303A of the sixth switch 2303 is connected with the fifth port 2303E of the sixth switch 2303, the controller 2302 controls the fourth port 2303D of the sixth switch 2303 and the first port 2304A of the seventh switch 2304 to be connected with the sixth port 2303F of the sixth switch 2303 and the third port 2304C of the seventh switch 2304, respectively; or controls the first port 2304A of the seventh switch 2304 and the second port 2305B of the eighth switch 2305 to be connected with the fourth port 2304D of the seventh switch 2304 and the third port 2305C of the eighth switch 2305, respectively; or controls the first port 2304A of the seventh switch 2304 to be connected with the fifth port 2304E of the seventh switch 2304; or controls the first port 2304A of the seventh switch 2304 to be connected with the sixth port 2304F of the seventh switch 2304.

In this embodiment, the LTE signal output from the first port 2301A of the rf transceiver 2301 is transmitted through the sixth switch 2303 on the first antenna 2306, and the LTE signal received by the first antenna 2306 enters the rf transceiver 2301 from the first port 2301A of the rf transceiver 2301 through the sixth switch 2303.

The SRS output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the second antenna 2307 through the seventh switch 2304 and the sixth switch 2303; the SRS output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the third antenna 2308 or the fourth antenna 2309 through the seventh switch 2304; the SRS output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the fifth antenna 2310 through the seventh switch 2304 and the eighth switch 2305.

It is to be appreciated that when the first antenna 2306 is used for transmitting and receiving LTE signals, the SRS output from the third port 2301C of the radio frequency transceiver 2301 may be alternately transmitted on the second antenna 2307, the third antenna 2308, the fourth antenna 2309, or the fifth antenna 2310. The present embodiment does not limit the order in which the SRS is transmitted through the second antenna 2307, the third antenna 2308, the fourth antenna 2309, or the fifth antenna 2310.

For example, fig. 27 is a schematic diagram of an antenna configuration when SRS is transmitted in turn according to an embodiment of the present application. As shown in fig. 27, when the first port 2303A of the sixth switch 2303 is connected with the sixth port 2303F of the sixth switch 2303, the controller 2302 controls the fourth port 2303D of the sixth switch 2303 and the first port 2304A of the seventh switch 2304 to be connected with the sixth port 2303F of the sixth switch 2303 and the third port 2304C of the seventh switch 2304, respectively; or controls the first port 2304A of the seventh switch 2304 and the second port 2305B of the eighth switch 2305 to be connected with the fourth port 2304D of the seventh switch 2304 and the third port 2305C of the eighth switch 2305, respectively; or controls the first port 2304A of the seventh switch 2304 to be connected with the fifth port 2304E of the seventh switch 2304; or controls the first port 2304A of the seventh switch 2304 to be connected with the sixth port 2304F of the seventh switch 2304.

In this embodiment, the LTE signal output from the first port 2301A of the rf transceiver 2301 is transmitted through the sixth switch 2303 to the second antenna 2307, and the LTE signal received by the second antenna 2307 enters the rf transceiver 2301 from the first port 2301A of the rf transceiver 2301 through the sixth switch 2303.

The SRS output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the first antenna 2306 through the seventh switch 2304 and the sixth switch 2303; the SRS output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the third antenna 2308 or the fourth antenna 2309 through the seventh switch 2304; the SRS output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the fifth antenna 2310 through the seventh switch 2304 and the eighth switch 2305.

It is to be appreciated that when the second antenna 2307 is used for transmitting and receiving LTE signals, the SRS output from the third port 2301C of the radio frequency transceiver 2301 may be alternately transmitted on the first antenna 2306, the third antenna 2308, the fourth antenna 2309, or the fifth antenna 2310. The present embodiment does not limit the order in which the SRS is transmitted through the first antenna 2306, the third antenna 2308, the fourth antenna 2309, or the fifth antenna 2310.

It can be understood that, in the connection manner shown in fig. 26 and fig. 27, when SRS is transmitted in turn, LTE signal transmission is not affected, and LTE signal interruption can be avoided. And the time of the SRS transmitting process is short, and the influence on the receiving of LTE signals is small. In this way, the terminal device realizes the coexistence of the LTE communication and the SRS transmission by changing the connection mode of the sixth switch, the seventh switch and the eighth switch.

When the terminal device performs the ENDC communication, connection of the sixth switch 2303, the seventh switch 2304, and the eighth switch 2305 in the radio frequency circuit may refer to fig. 28 and 29.

Fig. 28 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 28, the first port 2303A and the second port 2303B of the sixth switch 2303 are connected with the fifth port 2303E and the sixth port 2303F of the sixth switch 2303, respectively; the first port 2304A and the second port 2304B of the seventh switch 2304 are connected with the fifth port 2304E and the sixth port 2304F of the seventh switch 2304, respectively; the first port 2305A of the eighth switch 2305 is connected with the third port 2305C of the eighth switch 2305.

In the embodiment of the present application, the LTE signal output from the first port 2301A of the radio frequency transceiver 2301 is transmitted through the sixth switch 2303 on the first antenna 2306. An LTE signal received by the first antenna 2306 enters the rf transceiver 2301 from the first port 2301A of the rf transceiver 2301 via the sixth switch 2303. The LTE signal and/or NR signal received by the second antenna 2307 enters the rf transceiver 2301 from the second port 2301B of the rf transceiver 2301 via the sixth switch 2303.

The NR signal output from the third port 2301C of the radio frequency transceiver 2301 is transmitted on the third antenna 2308 through the seventh switch 2304. The NR signal received by the third antenna 2308 and the NR signal received by the fourth antenna 2309 enter the rf transceiver 2301 through the seventh switch 2304 from the third port 2301C and the fourth port 2301D of the rf transceiver 2301, respectively. The NR signal received by the fifth antenna 2310 enters the rf transceiver 2301 from the fifth port 2301E of the rf transceiver 2301 through the eighth switch 2305.

Fig. 29 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 29, the first port 2303A and the second port 2303B of the sixth switch 2303 are connected with the sixth port 2303F and the fifth port 2303E of the sixth switch 2303, respectively; the first port 2304A and the second port 2304B of the seventh switch 2304 are connected with the fifth port 2304E and the sixth port 2304F of the seventh switch 2304, respectively; the first port 2305A of the eighth switch 2305 is connected with the third port 2305C of the eighth switch 2305.

In the embodiment of the present application, the LTE signal output from the first port 2301A of the radio frequency transceiver 2301 is transmitted on the second antenna 2307 through the sixth switch 2303. The LTE signal received by the second antenna 2307 enters the rf transceiver 2301 from the first port 2301A of the rf transceiver 2301 via the sixth switch 2303. The LTE signal and/or NR signal received by the first antenna 2306 enters the rf transceiver 2301 from the second port 2301B of the rf transceiver 2301 via the sixth switch 2303.

In a possible implementation manner, in the connection manner corresponding to fig. 28 and 29, the ports connected to the first port 2304A and the second port 2304B of the seventh switch 2304 may be connected to each other in an interchangeable manner. Thus, the NR signal may be transmitted over the third antenna 2808 or the fourth antenna 2309.

Therefore, the terminal equipment realizes the switching of the third antenna and the fourth antenna by changing the connection mode of the seventh switch, and further can select a proper antenna to transmit the NR signal.

The antenna configuration in NR communication may refer to the antenna configuration when an NR signal is transmitted and/or received in the aforementioned endec communication, and the connection manner of the sixth switch, the seventh switch, and the eighth switch in NR communication is similar to the connection manner when an NR signal is transmitted and/or received in the aforementioned endec communication, and is not described here again.

In summary, in the radio frequency circuit shown in fig. 23, the terminal device implements LTE communication, SRS transmission and endec communication by using 5 antennas and changing the connection manner of the sixth switch, the seventh switch and/or the eighth switch, thereby implementing a dual-mode function of SA and NSA. The number of the antennas is reduced, the space occupied by the antennas is reduced, and the size of the terminal equipment is reduced. The terminal equipment can also select a proper antenna to transmit an LTE signal and/or an NR signal, so that the throughput rate is improved. And the transmission of LTE signals is not influenced when the SRS is transmitted in turn or NR is communicated.

The radio frequency circuit implementing antenna sharing by peer-to-peer and non-peer switches is described below in conjunction with fig. 30-36.

Fig. 30 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application. As shown in fig. 30, the rf circuit includes: a radio frequency transceiver 3001, a controller 3002, a ninth switch 3003, a tenth switch 3004, an eleventh switch 3005, a twelfth switch 3006, a first antenna 3007, a second antenna 3008, a third antenna 3009, a fourth antenna 3010, and a fifth antenna 3011.

The structures and functions of the radio frequency transceiver 3001, the controller 3002, the first antenna 3007, the second antenna 3008, the third antenna 3009, the fourth antenna 3010 and the fifth antenna 3011 may refer to the related concepts described above and the description of the corresponding structures of the radio frequency circuit shown in fig. 2, and are not described herein again.

The controller 3002 is configured to control settings of the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005, and the twelfth switch 3006, so that the first antenna 3007, the second antenna 3008, the third antenna 3009, the fourth antenna 3010, and the fifth antenna 3011 transmit and/or receive radio frequency signals, thereby implementing 2 × 2MIMO for LTE, 4 × 4MIMO for NR, and SRS transmission.

In 2 × 2MIMO of LTE and 4 × 4MIMO of NR, the controller 3002 is configured to control settings of the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005, and the twelfth switch 3006 such that the first antenna 3007 is configured to transmit and receive LTE signals, the second antenna 3008 is configured to receive LTE signals and/or NR signals, any one of the third antenna 3009, the fourth antenna 3010, and the fifth antenna 3011 is configured to transmit NR signals, and the third antenna 3009, the fourth antenna 3010, and the fifth antenna 3011 are each configured to receive NR signals; alternatively, the first antenna 3007 is used for receiving LTE signals and/or NR signals, the second antenna 3008 is used for transmitting and receiving LTE signals, any one of the third antenna 3009, the fourth antenna 3010 and the fifth antenna 3011 is used for transmitting NR signals, and the third antenna 3009, the fourth antenna 3010 and the fifth antenna 3011 are all used for receiving NR signals.

In the SRS transmission process, the controller 3002 is configured to control the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005 and the twelfth switch 3006 to be set, so that when the first antenna 3007 is configured to transmit and receive an LTE signal, an SRS is transmitted on the second antenna 3008, the third antenna 3009, the fourth antenna 3010 or the fifth antenna 3011; alternatively, when the second antenna 3008 is used to transmit and receive LTE signals, the SRS is transmitted over the first antenna 3007, the third antenna 3009, the fourth antenna 3010, or the fifth antenna 3011.

It is understood that the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005 and the twelfth switch 3006 may be collectively referred to as a switching unit. The ninth switch 3003, the tenth switch 3004, the eleventh switch 3005 and the twelfth switch 3006 are all connected to the controller 3002.

The ninth switch 3003 includes 4 ports. The first port 3003A of the ninth switch 3003 is connected to the first port 3001A of the radio frequency transceiver 3001; the second port 3003D of the ninth switch 3003 is connected to the third port 3004C of the tenth switch 3004; the third port 3003C and the fourth port 3003D of the ninth switch 3003 are connected to the first antenna 3007 and the second antenna 3008, respectively. The ninth switch 3003 may be a double pole double throw switch (DPDT).

The tenth switch 3004 includes 6 ports. The first port 3004A and the second port 3004B of the tenth switch 3004 are connected to the second port 3001B and the third port 3001C of the radio frequency transceiver 3001, respectively; the third port 3004C of the tenth switch 3004 is connected to the second port 3003B of the ninth switch 3003; the fourth port 3004D of the tenth switch 3004 is connected to the second port 3005B of the eleventh switch 3005; the fifth port 3004E of the tenth switch 3004 is connected to the third antenna 3009; the sixth port 3004F of the tenth switch 3004 is connected to the first port 3006A of the twelfth switch 3006. Tenth switch 3004 may be a double pole, four throw switch (DP 4T).

The eleventh switch 3005 includes 3 ports. The first port 3005A of the eleventh switch 3005 is connected to the fourth port 3001D of the radio frequency transceiver 3001; the second port 3005B of the eleventh switch 3005 is connected to the fourth port 3004D of the tenth switch 3004; the third port 3005C of the eleventh switch 3005 is connected to the fourth antenna 3010. The eleventh switch may be a single pole double throw switch (SP 2T).

The twelfth switch 3006 includes 3 ports. The first port 3006A of the twelfth switch 3006 is connected to the fifth port 3004E of the tenth switch 3004; the second port 3006B of the twelfth switch 3006 is connected to the fifth port 3001E of the radio frequency transceiver 3001; the third port 3006C of the twelfth switch 3006 is connected to the fifth antenna 3011. The twelfth switch may be a single pole double throw switch (SP 2T).

Next, a description will be given of possible connection cases of the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005 and the twelfth switch 3006 in the radio frequency circuit shown in fig. 30, with reference to fig. 31 to 36.

When the terminal device performs LTE communication, the connection of the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005, and the twelfth switch 3006 in the radio frequency circuit may refer to fig. 31 and fig. 32.

Exemplarily, fig. 31 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 31, the first port 3003A and the second port 3003B of the ninth switch 3003 are connected to the third port 3003C and the fourth port 3003D of the ninth switch 3003, respectively, and the first port 3004A of the tenth switch 3004 is connected to the third port 3004C of the tenth switch 3004.

In the embodiment of the present application, the LTE signal output from the first port 3001A of the radio frequency transceiver 3001 is transmitted through the ninth switch 3003 on the first antenna 3007. The LTE signal received by the first antenna 3007 enters the radio frequency transceiver 3001 from the first port 3001A of the radio frequency transceiver 3001 through the ninth switch 3003. The LTE signal received by the second antenna 3008 enters the radio-frequency transceiver 3001 from the second port 3001B of the radio-frequency transceiver 3001 via the ninth switch 3003 and the tenth switch 3004.

In this way, the terminal device can implement LTE communication.

Exemplarily, fig. 32 is a schematic diagram of an antenna configuration in LTE communication according to an embodiment of the present application. As shown in fig. 32, the first port 3003A and the second port 3003B of the ninth switch 3003 are connected to the fourth port 3003D and the third port 3003C of the ninth switch 3003, respectively, and the first port 3004A of the tenth switch 3004 is connected to the third port 3004C of the tenth switch 3004.

In the embodiment of the present application, the LTE signal output from the first port 3001A of the radio frequency transceiver 3001 is transmitted through the ninth switch 3003 to the second antenna 3008. The LTE signal received by the second antenna 3008 enters the radio frequency transceiver 3001 from the first port 3001A of the radio frequency transceiver 3001 through the ninth switch 3003. The LTE signal received by the first antenna 3007 enters the radio frequency transceiver 3001 from the second port 3001B of the radio frequency transceiver 3001 via the ninth switch 3003 and the tenth switch 3004.

Therefore, the terminal equipment realizes the switching between the first antenna and the second antenna by changing the connection mode of the ninth switch, so that a proper antenna can be selected to transmit an LTE signal, and the quality of the LTE signal is improved. The applicability of the terminal device increases.

When the terminal device performs SRS transmission, reference may be made to fig. 33 and 34 for connection of the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005, and the twelfth switch 3006 in the radio frequency circuit.

For example, fig. 33 is a schematic diagram of an antenna configuration when SRS is transmitted in turn according to an embodiment of the present application. As shown in fig. 33, when the first port 3003A of the ninth switch 3003 is connected with the third port 3003C of the ninth switch 3003, the controller 3003 controls the second port 3004B of the tenth switch 3004 and the second port 3003B of the ninth switch 3003 to be connected with the third port 3004C of the tenth switch 3004 and the fourth port 3003D of the ninth switch 3003, respectively; or control the second port 3004B of the tenth switch 3004 to be connected with the fifth port 3004E of the tenth switch 3004; or control the second port 3004B of the tenth switch 3004 and the second port 3005B of the eleventh switch 3005 to be connected with the fourth port 3004D of the tenth switch 3004 and the third port 3005C of the eleventh switch 3005, respectively; or controls the second port 3004B of the tenth switch 3004 and the first port 3006A of the twelfth switch 3006 to be connected with the sixth port 3004F of the tenth switch 3004 and the third port 3006C of the twelfth switch 3006, respectively.

In the embodiment of the present application, the LTE signal output from the first port 3001A of the radio frequency transceiver 3001 is transmitted on the first antenna 3007 through the ninth switch 3003, and the LTE signal received by the first antenna 3007 enters the radio frequency transceiver 3001 from the first port 3001A of the radio frequency transceiver 3001 through the ninth switch 3003.

The SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the second antenna 3008 via the tenth switch 3004 and the ninth switch 3003; the SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the third antenna 3009 via the ninth switch 3003; the SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the fourth antenna 3010 via the tenth switch 3004 and the eleventh switch 3005; the SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the fourth antenna 3010 via the tenth switch 3004 and the twelfth switch 3006.

It is to be appreciated that when the first antenna 3007 is used for transmitting and receiving LTE signals, the SRS output from the third port 3001C of the radio frequency transceiver 3001 may be alternately transmitted on the second antenna 3008, the third antenna 3009, the fourth antenna 3010, or the fifth antenna 3011. In the embodiment of the present application, the order of SRS transmission on the second antenna 3008, the third antenna 3009, the fourth antenna 3010, or the fifth antenna 3011 is not limited.

For example, fig. 34 is a schematic view of an antenna configuration when SRS is transmitted in turn according to an embodiment of the present application. As shown in fig. 34, when the first port 3003A of the ninth switch 3003 is connected with the fourth port 3003D of the ninth switch 3003, the controller 3003 controls the second port 3004B of the tenth switch 3004 and the second port 3003B of the ninth switch 3003 to be connected with the third port 3004C of the tenth switch 3004 and the third port 3003C of the ninth switch 3003, respectively; or control the second port 3004B of the tenth switch 3004 to be connected with the fifth port 3004E of the tenth switch 3004; or control the second port 3004B of the tenth switch 3004 and the second port 3005B of the eleventh switch 3005 to be connected with the fourth port 3004D of the tenth switch 3004 and the third port 3005C of the eleventh switch 3005, respectively; or controls the second port 3004B of the tenth switch 3004 and the first port 3006A of the twelfth switch 3006 to be connected with the sixth port 3004F of the tenth switch 3004 and the third port 3006C of the twelfth switch 3006, respectively.

In the embodiment of the present application, the LTE signal output from the first port 3001A of the radio frequency transceiver 3001 is transmitted to the second antenna 3008 through the ninth switch 3003, and the LTE signal received by the second antenna 3008 enters the radio frequency transceiver 3001 from the first port 3001A of the radio frequency transceiver 3001 through the ninth switch 3003.

The SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the first antenna 3007 via the tenth switch 3004 and the ninth switch 3003; the SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the third antenna 3009 via the ninth switch 3003; the SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the fourth antenna 3010 via the tenth switch 3004 and the eleventh switch 3005; the SRS output from the third port 3001C of the radio frequency transceiver 3001 is transmitted on the fourth antenna 3010 via the tenth switch 3004 and the twelfth switch 3006.

It is to be appreciated that when the second antenna 3008 is used for transmitting and receiving LTE signals, the SRS output from the third port 3001C of the radio frequency transceiver 3001 may be transmitted on the first antenna 3007, the third antenna 3009, the fourth antenna 3010, or the fifth antenna 3011 by turns. The present embodiment does not limit the order in which the SRS is transmitted through the first antenna 3007, the third antenna 3009, the fourth antenna 3010, or the fifth antenna 3011.

It can be understood that, in the connection manner shown in fig. 33 and fig. 34, when SRS is transmitted in turn, LTE signal transmission is not affected, and LTE signal interruption can be avoided. And the time of the SRS transmitting process is short, and the influence on the receiving of LTE signals is small. In this way, the terminal device realizes the coexistence of the LTE communication and the SRS transmission by changing the connection mode of the sixth switch, the seventh switch and the eighth switch.

When the terminal device performs the ENDC communication, the connection of the ninth switch 3003, the tenth switch 3004, the eleventh switch 3005, and the twelfth switch 3006 in the radio frequency circuit may refer to fig. 35 and fig. 36.

Exemplarily, fig. 35 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 35, the first port 3003A and the second port 3003B of the ninth switch 3003 are connected to the third port 3003C and the fourth port 3003D of the ninth switch 3003, respectively; the first port 3004A and the second port 3004B of the tenth switch 3004 are connected to the third port 3004C and the fifth port 3004E of the tenth switch 3004, respectively; the first port 3005A of the eleventh switch 3005 is connected to the third port 3005C of the eleventh switch 3005; the second port 3006B of the twelfth switch 3006 is connected to the third port 3006C of the twelfth switch 3006.

In the embodiment of the present application, the LTE signal output from the first port 3001A of the radio frequency transceiver 3001 is transmitted through the ninth switch 3003 on the first antenna 3007. The LTE signal received by the first antenna 3007 enters the radio frequency transceiver 3001 from the first port 3001A of the radio frequency transceiver 3001 through the ninth switch 3003. The LTE signal and/or the NR signal received by the second antenna 3008 enter the radio frequency transceiver 3001 from the second port 3001B of the radio frequency transceiver 3001 via the ninth switch 3003 and the tenth switch 3004. The NR signal received by the third antenna 3009 enters the radio frequency transceiver 3001 from the third port 3001C of the radio frequency transceiver 3001 via the tenth switch 3004. The NR signal received by the fourth antenna 3010 enters the rf transceiver 3001 from the fourth port 3001D of the rf transceiver 3001 via the eleventh switch 3005. The NR signal received by the fifth antenna 3011 enters the rf transceiver 3001 from the fifth port 3001E of the rf transceiver 3001 through the twelfth switch 3006.

Fig. 36 is a schematic diagram of an antenna configuration in the context of the endec communication according to an embodiment of the present application. As shown in fig. 36, the first port 3003A and the second port 3003B of the ninth switch 3003 are connected to the fourth port 3003D and the third port 3003C of the ninth switch 3003, respectively; the first port 3004A and the second port 3004B of the tenth switch 3004 are connected to the third port 3004C and the fifth port 3004E of the tenth switch 3004, respectively; the first port 3005A of the eleventh switch 3005 is connected to the third port 3005C of the eleventh switch 3005; the second port 3006B of the twelfth switch 3006 is connected to the third port 3006C of the twelfth switch 3006.

In the embodiment of the present application, the LTE signal output from the first port 3001A of the radio frequency transceiver 3001 is transmitted through the ninth switch 3003 to the second antenna 3008. The LTE signal received by the second antenna 3008 enters the radio frequency transceiver 3001 from the first port 3001A of the radio frequency transceiver 3001 through the ninth switch 3003. The LTE signal and/or the NR signal received by the first antenna 3007 enter the radio frequency transceiver 3001 from the second port 3001B of the radio frequency transceiver 3001 via the ninth switch 3003 and the tenth switch 3004. The NR signal received by the third antenna 3009 enters the radio frequency transceiver 3001 from the third port 3001C of the radio frequency transceiver 3001 via the tenth switch 3004. The NR signal received by the fourth antenna 3010 enters the rf transceiver 3001 from the fourth port 3001D of the rf transceiver 3001 via the eleventh switch 3005. The NR signal received by the fifth antenna 3011 enters the rf transceiver 3001 from the fifth port 3001E of the rf transceiver 3001 through the twelfth switch 3006.

The antenna configuration in NR communication may refer to the antenna configuration when an NR signal is transmitted and/or received in the aforementioned endec communication, and the ninth switch, the tenth switch, the eleventh switch, and the twelfth switch in NR communication may be connected in a similar manner to the connection when an NR signal is transmitted and/or received in the aforementioned endec communication, and therefore, description thereof is omitted.

In summary, in the radio frequency circuit shown in fig. 30, the terminal device implements LTE communication, SRS transmission and endec communication by 5 antennas and changing the connection mode of the ninth switch, the tenth switch, the eleventh switch and/or the twelfth switch, thereby implementing dual mode functions of SA and NSA. The number of the antennas is reduced, the space occupied by the antennas is reduced, and the size of the terminal equipment is reduced. The terminal equipment can also select a proper antenna to transmit an LTE signal, so that the throughput rate is improved. And the transmission of LTE signals is not influenced when the SRS is transmitted in turn or NR is communicated.

An embodiment of the present application further provides an electronic device, which includes any one of the radio frequency circuits described above, where the radio frequency circuit is configured to transmit and receive a first signal and/or a second signal; the first signal is an LTE signal, and the second signal is an NR signal.

The electronic device may comprise a terminal device. The terminal device may be a mobile phone, a tablet personal computer (tablet personal computer), a laptop computer (laptop computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a wearable device (wearable device), or the like.

The electronic device provided by the embodiment of the application has the beneficial effects brought by the radio frequency circuit, which are not described herein again.

The above embodiments, structural diagrams or simulation diagrams are only schematic illustrations of the technical solutions of the present application, and the dimensional ratios thereof do not limit the scope of the technical solutions, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the above embodiments should be included in the scope of the technical solutions.

Claims

1. A radio frequency circuit, comprising: the antenna comprises a radio frequency transceiver, a controller, a switch unit, a first antenna, a second antenna, a third antenna, a fourth antenna and a fifth antenna;

the radio frequency transceiver comprises a first port, a second port, a third port, a fourth port and a fifth port, wherein the first port is used for transmitting and receiving a first signal, the second port is used for receiving a second signal and the first signal, the third port is used for transmitting and receiving the second signal, and the fourth port and the fifth port are both used for receiving the second signal;

the switch unit comprises a sixth port, a seventh port, an eighth port, a ninth port, a tenth port, an eleventh port, a twelfth port, a thirteenth port, a fourteenth port and a fifteenth port;

the first port, the second port, the third port, the fourth port and the fifth port are connected with the sixth port, the seventh port, the eighth port, the ninth port and the tenth port, respectively;

the eleventh port, the twelfth port, the thirteenth port, the fourteenth port, and the fifteenth port are connected to the first antenna, the second antenna, the third antenna, the fourth antenna, and the fifth antenna, respectively;

the first antenna is used for transmitting and receiving the first signal, and the second antenna is used for receiving the first signal and the second signal; or the first antenna is used for receiving the first signal and the second signal, and the second antenna is used for transmitting and receiving the first signal;

any one of the third antenna, the fourth antenna and the fifth antenna is configured to transmit the second signal, and the third antenna, the fourth antenna and the fifth antenna are all configured to receive the second signal;

the controller is connected with the switch unit;

the controller is configured to control the sixth port and the seventh port to be connected to the eleventh port and the twelfth port, respectively, or control the sixth port and the seventh port to be connected to the twelfth port and the eleventh port, respectively, when the radio frequency transceiver transmits or receives the first signal;

and/or, when the radio frequency transceiver transmits or receives the second signal, controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port, respectively, or controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port, respectively;

the first signal is a Long Term Evolution (LTE) signal, and the second signal is a new air interface (NR) signal.

2. The radio frequency circuit according to claim 1, wherein the third port is further configured to transmit a Sounding Reference Signal (SRS);

the controller is further configured to control the eighth port to connect with the twelfth port such that the second antenna is used to transmit the SRS when the third port is transmitting the SRS and the first antenna is used to transmit and receive the first signal; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS;

or, when the third port transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port to be connected with the eleventh port, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS.

3. The radio frequency circuit according to claim 1 or 2, wherein the switching unit comprises a first switch and a second switch, both of which are three-pole three-throw switches;

the first switch includes the sixth port, the seventh port, the eleventh port, the twelfth port, the thirteenth port, and a sixteenth port;

the second switch includes the eighth port, the ninth port, the tenth port, the fourteenth port, the fifteenth port, and a seventeenth port;

the sixteenth port is connected with the seventeenth port;

the first switch and the second switch are both connected with the controller;

and/or, when the radio frequency transceiver transmits or receives the second signal, controlling the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port, respectively, or controlling the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port, respectively.

4. The radio frequency circuit of claim 3, wherein the third port is further configured to transmit SRS;

the controller is further configured to control the eighth port and the sixteenth port to be connected with the seventeenth port and the twelfth port, respectively, such that the second antenna is used for transmitting the SRS, when the radio frequency transceiver transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS;

or, when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

5. The radio frequency circuit according to claim 1 or 2, wherein the switch unit comprises a third switch, the third switch being a five-pole five-throw switch;

the third switch includes the sixth port, the seventh port, the eighth port, the ninth port, the tenth port, the eleventh port, the twelfth port, the thirteenth port, the fourteenth port, and the fifteenth port;

the third switch is connected with the controller.

6. The radio frequency circuit according to claim 1 or 2, wherein the switch unit includes a fourth switch and a fifth switch, the fourth switch is a double-pole double-throw switch, and the fourth switch is a four-pole four-throw switch;

the fourth switch comprises the sixth port, the eleventh port, the twelfth port, and an eighteenth port;

the fifth switch includes the seventh port, the eighth port, the ninth port, the tenth port, the thirteenth port, the fourteenth port, the fifteenth port, and a nineteenth port;

the eighteenth port is connected with the nineteenth port;

the fourth switch and the fifth switch are both connected with the controller;

the controller is configured to control the sixth port, the seventh port, and the eighteenth port to be connected to the eleventh port, the nineteenth port, and the twelfth port, respectively, or control the sixth port, the seventh port, and the eighteenth port to be connected to the twelfth port, the nineteenth port, and the eleventh port, respectively, when the radio frequency transceiver transmits or receives the first signal;

and/or, when the radio frequency transceiver transmits or receives the second signal, controlling the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port, respectively, or controlling the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port, respectively.

7. The radio frequency circuit of claim 6, wherein the third port is further configured to transmit an SRS;

the controller is further configured to control the eighth port and the eighteenth port to be connected with the nineteenth port and the twelfth port, respectively, such that the second antenna is used for transmitting the SRS, when the radio frequency transceiver transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS;

or, when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the eighteenth port to be connected with the nineteenth port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

8. The radio frequency circuit according to claim 1 or 2, wherein the switch unit comprises a sixth switch, a seventh switch and an eighth switch, the sixth switch and the seventh switch are both double-pole four-throw switches, and the eighth switch is a single-pole double-throw switch;

the sixth switch comprises the sixth port, the seventh port, the eleventh port, the twelfth port, a twentieth port, and a twenty-first port;

the seventh switch comprises the eighth port, the ninth port, the thirteenth port, the fourteenth port, a twenty-second port, and a twenty-third port;

the eighth switch comprises the tenth port, the fifteenth port, and a twenty-fourth port;

the twentieth port is open-circuited, and the twenty-second port and the twenty-third port are connected with the twentieth port and the twenty-fourth port, respectively;

the sixth switch, the seventh switch and the eighth switch are all connected with the controller;

and/or, when the radio frequency transceiver transmits or receives the second signal, controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port, respectively, or controlling the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port, respectively.

9. The radio frequency circuit of claim 8, wherein the third port is further configured to transmit SRS;

the controller is further configured to control the eighth port and the twenty-first port to be connected with the twelfth port and the twelfth port, respectively, such that the second antenna is used for transmitting the SRS, when the radio frequency transceiver transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twenty-fourth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS;

or, when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the twenty-first port to be connected with the twenty-second port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twentieth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

10. The radio frequency circuit according to claim 1 or 2, wherein the switch unit comprises a ninth switch, a tenth switch, an eleventh switch and a twelfth switch, the ninth switch is a double-pole double-throw switch, the tenth switch is a double-pole four-throw switch, and the eleventh switch and the twelfth switch are both single-pole double-throw switches;

the ninth switch includes the sixth port, the eleventh port, the twelfth port, and a twenty-fifth port;

the tenth switch comprises the seventh port, the eighth port, the thirteenth port, a twenty-sixth port, a twenty-seventh port, and a twenty-eighth port;

the eleventh switch comprises the ninth port, the fourteenth port, and a twenty-ninth port;

the twelfth switch comprises the tenth port, the fifteenth port, and a thirtieth port;

the twenty-fifth port, the twenty-seventh port and the twenty-eighth port are connected with the twenty-sixth port, the twenty-ninth port and the thirtieth port, respectively;

the ninth switch, the tenth switch, the eleventh switch and the twelfth switch are all connected with the controller;

the controller is configured to control the sixth port, the seventh port, and the twenty-fifth port to be connected to the eleventh port, the twenty-sixth port, and the twelfth port, respectively, or control the sixth port, the seventh port, and the twenty-fifth port to be connected to the twelfth port, the twenty-sixth port, and the eleventh port, respectively, when the radio frequency transceiver transmits or receives the first signal;

and/or, when the radio frequency transceiver transmits or receives the second signal, controlling the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port, respectively, or controlling the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port, respectively.

11. The radio frequency circuit of claim 10, wherein the third port is further configured to transmit SRS;

the controller is further configured to control the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the twelfth port, respectively, such that the second antenna is used for transmitting the SRS, when the radio frequency transceiver transmits the SRS and the first antenna is used for transmitting and receiving the first signal; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, such that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS;

or, when the radio frequency transceiver transmits the SRS and the second antenna is used for transmitting and receiving the first signal, controlling the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the eleventh port, respectively, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, such that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

12. A control method, applied to a radio frequency circuit according to any one of claims 1 to 11, the method comprising:

the controller receives first information for instructing transmission or reception of the first signal; the controller controls the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively according to the first information, or controls the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively;

and/or the controller receives second information for instructing transmission or reception of the second signal; the controller controls the seventh port, the eighth port, the ninth port, and the tenth port to be connected to the twelfth port, the thirteenth port, the fourteenth port, and the fifteenth port, respectively, or controls the seventh port, the eighth port, the ninth port, and the tenth port to be connected to the eleventh port, the thirteenth port, the fourteenth port, and the fifteenth port, respectively, according to the second information.

13. The method of claim 12, further comprising:

the controller receives third information for instructing transmission of the SRS;

the controller controls the eighth port to be connected with the twelfth port according to the third information, so that the second antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS;

or, the controller controls the eighth port to be connected with the eleventh port according to the third information, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port so that the fourth antenna is used for transmitting the SRS, or controlling the eighth port to be connected with the fifteenth port so that the fifth antenna is used for transmitting the SRS.

14. The method according to claim 12 or 13, wherein when the switching unit comprises a first switch and a second switch;

the controller controls the sixth port and the seventh port to be connected with the eleventh port and the twelfth port respectively according to the first information, or controls the sixth port and the seventh port to be connected with the twelfth port and the eleventh port respectively;

and/or the controller controls the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port, respectively, or controls the seventh port, the sixteenth port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the seventeenth port, the fourteenth port and the fifteenth port, respectively, according to the second information.

15. The method of claim 14,

the controller controls the eighth port and the sixteenth port to be connected with the seventeenth port and the twelfth port, respectively, according to the third information, so that the second antenna is used for transmitting the SRS; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS;

or, the controller controls the eighth port and the sixteenth port to be connected to the seventeenth port and the eleventh port, respectively, according to the third information, so that the first antenna is used for transmitting the SRS; or controlling the eighth port and the sixteenth port to be connected with the seventeenth port and the thirteenth port, respectively, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

16. The method according to claim 12 or 13, wherein when the switching unit includes a third switch;

and/or the controller controls the seventh port, the eighth port, the ninth port and the tenth port to be connected with the twelfth port, the thirteenth port, the fourteenth port and the fifteenth port, respectively, or controls the seventh port, the eighth port, the ninth port and the tenth port to be connected with the eleventh port, the thirteenth port, the fourteenth port and the fifteenth port, respectively, according to the second information.

17. The method of claim 16,

18. The method according to claim 12 or 13, wherein when the switching unit includes a fourth switch and a fifth switch;

the controller controls the sixth port, the seventh port and the eighteenth port to be connected with the eleventh port, the nineteenth port and the twelfth port respectively according to the first information, or controls the sixth port, the seventh port and the eighteenth port to be connected with the twelfth port, the nineteenth port and the eleventh port respectively;

and/or the controller controls the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port, respectively, or controls the seventh port, the eighth port, the ninth port, the tenth port and the eighteenth port to be connected with the nineteenth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port, respectively, according to the second information.

19. The method of claim 18,

the controller controls the eighth port and the eighteenth port to be connected with the nineteenth port and the twelfth port, respectively, according to the third information, so that the second antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS;

or, the controller controls the eighth port and the eighteenth port to be connected with the nineteenth port and the eleventh port, respectively, according to the third information, so that the first antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port to be connected with the fifteenth port, so that the fifth antenna is used for transmitting the SRS.

20. The method according to claim 12 or 13, wherein when the switching unit includes a sixth switch, a seventh switch, and an eighth switch;

21. The method of claim 20,

the controller controls the eighth port and the twenty-first port to be connected with the twelfth port and the twelfth port respectively according to the third information, so that the second antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twenty-fourth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS;

or, the controller controls the eighth port and the twenty-first port to be connected with the twelfth port and the eleventh port, respectively, according to the third information, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port is connected with the fourteenth port, so that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the twentieth port to be connected with the twenty-third port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

22. The method according to claim 12 or 13, wherein when the switching unit includes a ninth switch, a tenth switch, an eleventh switch, and a twelfth switch;

the controller controls the sixth port, the seventh port and the twenty-fifth port to be connected with the eleventh port, the twenty-sixth port and the twelfth port respectively according to the first information, or controls the sixth port, the seventh port and the twenty-fifth port to be connected with the twelfth port, the twenty-sixth port and the eleventh port respectively;

and/or the controller controls the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the twelfth port respectively, or controls the seventh port, the eighth port, the ninth port, the tenth port and the twenty-fifth port to be connected with the twenty-sixth port, the thirteenth port, the fourteenth port, the fifteenth port and the eleventh port respectively, according to the second information.

23. The method of claim 22,

the controller controls the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the twelfth port respectively according to the third information, so that the second antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, such that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS;

or, the controller controls the eighth port and the twenty-fifth port to be connected with the twenty-sixth port and the eleventh port, respectively, according to the third information, so that the first antenna is used for transmitting the SRS; or the eighth port is connected with the thirteenth port, so that the third antenna is used for transmitting the SRS; or the eighth port and the twenty-ninth port are connected with the twenty-seventh port and the fourteenth port, such that the fourth antenna is used for transmitting the SRS; or controlling the eighth port and the thirtieth port to be connected with the twenty-eighth port and the fifteenth port, respectively, so that the fifth antenna is used for transmitting the SRS.

24. An electronic device comprising the radio frequency circuit of any of claims 1-11, the radio frequency circuit configured to transmit and receive a first signal and/or a second signal; the first signal is an LTE signal, and the second signal is an NR signal.