CN113067596A - Radio frequency structure and electronic equipment - Google Patents
Radio frequency structure and electronic equipment Download PDFInfo
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- CN113067596A CN113067596A CN202110274728.3A CN202110274728A CN113067596A CN 113067596 A CN113067596 A CN 113067596A CN 202110274728 A CN202110274728 A CN 202110274728A CN 113067596 A CN113067596 A CN 113067596A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The application discloses radio frequency structure and electronic equipment, this radio frequency structure includes: the system comprises a first transceiver, a first radio frequency front end module, a second transceiver, a second radio frequency front end module, four antennas and a switching module; the first part of antennas are respectively connected with the first radio frequency front end module and the second radio frequency front end module through the switching module; the second part of antennas are connected with a second radio frequency front end module through a switching module; the switching module is in a first conduction mode: the first part of antennas are conducted with the first radio frequency front end module, and the first part of antennas work in a signal receiving and transmitting mode of a first frequency band; the switching module is in a second conduction mode: the four antennas are conducted with the second radio frequency front end module, and all the four antennas work in a signal receiving mode of a second frequency band, or the four antennas work in a polling SRS transmitting mode. The antenna can solve the problems that the number of antennas in the existing electronic equipment with the 5G SRS function is large, and the space layout of the electronic equipment is not facilitated.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a radio frequency structure and an electronic device.
Background
Communication systems are continuously evolving, electronic devices need to support systems and frequency bands increasing, and the electronic devices may need to support frequency bands of second-Generation mobile phone communication technology specification (2-Generation and wireless telephone technology, 2G), third-Generation mobile communication technology (3rd-Generation, 3G), fourth-Generation mobile communication technology (4 th Generation mobile communication technology, 4G), and fifth-Generation mobile communication technology (5G).
The 5G NR frequency band needs to support Sounding Reference Signal (SRS) antenna alternate transmission technology of 2T4R (i.e. 2 transmission and 4 reception) or 1T4R (i.e. 1 transmission and 4 reception), and in order to implement the SRS function of 5G, at least 4 antennas (e.g. 5G N41/N78ANT0/1/2/3) need to be arranged at the front end of the 5G radio frequency, which increases the number of antennas in the electronic device, and the antenna design is relatively complex in structure, has a large impact on cost and performance, occupies more space in the electronic device, and is not favorable for the spatial layout of the electronic device.
Disclosure of Invention
The embodiment of the application provides a radio frequency structure and electronic equipment, and aims to solve the problems that the number of antennas in the existing electronic equipment with a 5G SRS function is large, and the space layout of the electronic equipment is not facilitated.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a radio frequency structure, including:
the system comprises a first transceiver and a first radio frequency front end module, wherein the first transceiver is connected with the first radio frequency front end module, and the working frequency corresponding to the first radio frequency front end module covers a first frequency band;
the second transceiver is connected with the second radio frequency front end module, and the working frequency corresponding to the second radio frequency front end module covers a second frequency band;
the first part of the four antennas are respectively connected with the first radio frequency front end module and the second radio frequency front end module through the switching module; a second part of the four antennas except the first part of the four antennas is connected with the second radio frequency front end module through the switching module;
the switching module is switchable between two conduction modes; under the condition that the switching module is in a first conduction mode, the first partial antenna is conducted with the first radio frequency front end module, and the first partial antenna works in a signal transceiving mode of the first frequency band; and under the condition that the switching module is in a second conduction mode, the four antennas are conducted with the second radio frequency front end module, and all the four antennas work in a signal receiving mode of the second frequency band or work in a polling mode for transmitting Sounding Reference Signals (SRS).
In a second aspect, an embodiment of the present application further provides an electronic device, including the radio frequency structure described above.
Like this, in the above-mentioned scheme of this application, first radio frequency front end module and second radio frequency front end module can multiplex the antenna, second radio frequency front end module during operation can multiplex the antenna that first radio frequency front end module corresponds promptly, guarantee the antenna performance of the first frequency channel that first radio frequency front end module corresponds, thereby can reduce the antenna quantity among the electronic equipment, and be favorable to simplifying the antenna design, reduce the shared space of radio frequency structure in electronic equipment, and do benefit to electronic equipment's spatial layout.
Drawings
FIG. 1 shows one of the schematic diagrams of the radio frequency architecture of an embodiment of the present application;
FIG. 2 is a second schematic diagram of an RF architecture according to an embodiment of the present application;
FIG. 3 shows one of the schematic diagrams of the conductive paths of the RF structure of FIG. 2;
FIG. 4 is a second schematic diagram of a conducting path of the RF structure of FIG. 2;
FIG. 5 is a third schematic diagram of a conducting path of the RF structure of FIG. 2;
FIG. 6 is a third schematic diagram of an RF architecture according to an embodiment of the present application;
fig. 7 is a fourth schematic diagram of an rf architecture according to an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The 5G network adopts two networking modes in the development and construction process: non-stand alone Networking (NSA) and stand alone networking (SA); the NR frequency bands of the two networking modes need to support the SRS antenna alternate transmission technology of 2T4R (i.e. 2 transmission and 4 reception) or 1T4R (i.e. 1 transmission and 4 reception), that is, known reference signals specified according to the standard are transmitted to the base station on each receiving antenna through electronic equipment, the base station demodulates the reference signals to obtain uplink channel characteristics from each terminal receiving antenna to the base station antenna, and calculates a channel matrix in real time; the uplink and downlink reciprocity of Time Division Duplex (TDD) is utilized to obtain the downlink channel characteristics, and downlink resources are scheduled to support a multi-in multi-out (MIMO) communication function.
In order to realize the SRS function of 5G, at least 4 antennas (such as 5GN41/N78 ANT0/1/2/3) are required to be arranged at the front end of 5G radio frequency. Therefore, the embodiment of the application provides a radio frequency structure, which can realize the SRS function of 5G and is beneficial to reducing the total number of antennas.
As shown in fig. 1, the radio frequency structure of the embodiment of the present application includes: a first transceiver 11, a first rf front-end module 12, a second transceiver 13, a second rf front-end module 14, four antennas and a switching module 16.
The first transceiver 11 is connected to the first rf front-end module 12, and a working frequency corresponding to the first rf front-end module 12 covers a first frequency band; the second transceiver 13 is connected to the second rf front-end module 14, and the operating frequency corresponding to the second rf front-end module 14 covers a second frequency band.
A first part of the four antennas 151 is connected to the first rf front-end module 12 and the second rf front-end module 14 through the switching module 16; the second antenna section 152 of the four antennas, except the first antenna section 151, is connected to the second rf front-end module 14 through the switch module 16.
The switching module 16 is switchable between two conduction modes; when the switching module 16 is in the first conducting mode, the first antenna 151 and the first rf front-end module 12 are conducted, and the first antenna 151 operates in the first frequency band signal transceiving mode; under the condition that the switching module 16 is in the second conduction mode, the four antennas are conducted with the second rf front-end module 14, and all the four antennas operate in the signal receiving mode of the second frequency band, or operate in the polling mode for performing SRS transmission.
Alternatively, the first partial antenna 151 may include one antenna, two antennas, or three antennas; the corresponding second partial antennas 151 may include three antennas, two antennas, and one antenna. That is, one antenna, two antennas or three antennas corresponding to the multiplexing first rf front-end module 12 may be used among the four antennas used by the second rf front-end module 14 during operation.
Optionally, the first partial antenna 151 may include four antennas, that is, four antennas used in the operation of the second rf front-end module 14 may be four antennas corresponding to the multiplexing first rf front-end module 12.
Optionally, the first frequency band and the second frequency band are frequency bands of 2G, 3G, 4G, or 5G, which satisfy different operating conditions, so as to ensure communication performance of the electronic device, such as a 5G NR frequency band and a WIFI frequency band.
Optionally, the second rf front-end module 14 may adopt a way of time-division multiplexing the antenna corresponding to the first rf front-end module 12, and may specifically determine the working requirements corresponding to the first frequency band and the second frequency band, which is not limited in this embodiment of the present application.
In the above scheme, the first rf front-end module 12 and the second rf front-end module 14 can multiplex antennas, that is, the second rf front-end module 14 can multiplex antennas corresponding to the first rf front-end module 12 when operating, and ensure the antenna performance of the first frequency band corresponding to the first rf front-end module 12, thereby reducing the number of antennas in the electronic device, and being beneficial to simplifying the antenna design, reducing the space occupied by the rf structure in the electronic device, and being beneficial to the spatial layout of the electronic device, and solving the problems that the number of antennas in the current electronic device with the 5G SRS function is large, and the spatial layout of the electronic device is not beneficial.
The following describes the radio frequency structure of the embodiment of the present application with reference to the 1T4R scenario of 5G NR:
as shown in fig. 2, the second rf front-end module 14 includes: a transmit-receive port TX-RX and three receive ports RX1, RX2, RX 3.
Wherein the four antennas are respectively connected to the transceiving ports TX-RX and the receiving ports RX1, RX2, RX3 through the switching module 16.
When the switching module 16 is in the second conduction mode, the four antennas are conducted with the transceiving ports TX-RX in a polling manner; when a first antenna of the four antennas is conducted with the TX-RX, at least one antenna of the four antennas except the first antenna is conducted with at least one receiving port in a one-to-one correspondence manner.
Wherein the first antenna may be any one of the four antennas.
Optionally, the first rf front-end module 12 may be a WIFI rf front-end module, and the second rf front-end module 14 may be a 5G rf front-end module. As shown in fig. 3 and 4, a schematic diagram of a plurality of conduction paths of the radio frequency structure is given. The four antennas are connected with the TX-RX in a polling manner, that is, the TX-RX of the second rf front-end module 14 is switched among the conduction paths a, b, c, and d, so as to implement the 5G SRS function; when the antenna ANT1 is conducted with the transceiving port TX-RX through the switching module 16 (i.e., conducting path e), the antenna ANT0 is conducted with the receiving port RX2 through the switching module 16 (i.e., conducting path f), the antenna ANT2 is conducted with the receiving port RX2 through the switching module 16 (i.e., conducting path G), and the antenna ANT3 is conducted with the receiving port RX3 through the switching module 16 (i.e., conducting path h), a four-way receiving function is implemented, thereby implementing the 1T4R function of the 5G NR scenario.
Optionally, when the antennas ANT2 and ANT3 are connected to the first rf front-end module 12 through the switching module 16, a WIFI function is implemented.
Optionally, the switching module 16 includes a first switching unit 161, a second switching unit 162 and a third switching unit 163.
The first antenna portion 151 is connected to the first rf front end module 12, the second switch unit 162, and a first receiving port (e.g., RX2, RX3) of the three receiving ports through the first switch unit 161.
The second partial antenna 152 is connected to the second switching unit 162 and a second partial receiving port (e.g., RX1) of the three receiving ports except the first partial receiving port through the third switching unit 163; the second switching unit 162 is connected to the TX-RX port.
In the first conducting mode, the first antenna 151 is conducted to the first rf front-end module 12 through the first switching unit 161; in the second conduction mode, the first antenna part 151 is respectively conducted to the second switching unit 162 and the first receiving port through the first switching unit 161, and the second antenna part 152 is respectively conducted to the second switching unit 162 and the second receiving port through the third switching unit 163.
Alternatively, the first partial antenna 151 includes a first antenna ANT2 and a second antenna ANT3, and the first switching unit 161 includes a first switch and a second switch.
A first end of the first switch is connected to the first antenna ANT2, a second end of the first switch is connected to the first rf front-end module 12, a third end of the first switch is connected to the second switching unit 162, and a fourth end of the first switch is connected to the first receiving port; the first switch is switchable between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted.
A first end of the second switch is connected to the second antenna ANT3, a second end of the first switch is connected to the first rf front-end module 12, a third end of the second switch is connected to the second switching unit 162, and a fourth end of the second switch is connected to the second receiving port; the second switch can be switched between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted; wherein the first receiving port and the second receiving port are any two of the receiving ports.
For example: the first switch is a first single pole, three throw switch (SP3T) and the second switch is a second single pole, three throw switch. The fixed end of the first single-pole-three-throw switch is connected to the first rf front-end module 12, and the three active ends of the first single-pole-three-throw switch are respectively connected to the antenna ANT2, the second switching unit 162, and the receiving port RX 2. Thus, the antenna ANT2 can be conducted with the first rf front end module 12, or the antenna ANT2 can be conducted with the TX-RX port through the second switch unit 162, or the antenna ANT2 can be conducted with the RX port 2 by switching the conducting state of the first single-pole-three-throw switch.
The fixed end of the second single-pole-three-throw switch is connected to the first rf front-end module 12, and the three active ends of the second single-pole-three-throw switch are respectively connected to the antenna ANT3, the second switching unit 162, and the receiving port RX 3. Thus, the antenna ANT3 can be conducted with the first rf front end module 12 by switching the conducting state of the second single-pole-three-throw switch, or the antenna ANT3 can be conducted with the transceiving port TX-RX through the second switching unit 162, or the antenna ANT3 can be conducted with the receiving port RX 3.
Alternatively, the second switching unit 162 may be a third single-pole-three-throw switch; the fixed end of the third single-pole triple-throw switch is connected with the TX-RX, and the three active ends of the first single-pole triple-throw switch are respectively connected with the first single-pole triple-throw switch, the second single-pole triple-throw switch and the third switching unit 163; in this way, the on states of the first single-pole-three-throw switch, the second single-pole-three-throw switch, the third single-pole-three-throw switch, and the third switching unit 163 are switched, so that the four antennas ANT0, ANT1, ANT2, and ANT3 can be turned on to the transmission/reception port TX-RX in a polling manner.
Alternatively, the third switching unit 163 may be a double pole double throw switch (DPDT); the first fixed end of the double-pole double-throw switch is connected with an antenna ANT0, the second fixed end of the double-pole double-throw switch is connected with an antenna ANT1, the first movable end of the double-pole double-throw switch is connected with the third single-pole triple-throw switch, and the second movable end of the double-pole double-throw switch is connected with a receiving port RX. Thus, by switching the conduction state of the double-pole double-throw switch, the antenna ANT0 can be conducted with the transmitting/receiving port TX-RX through the third single-pole double-throw switch, and the antenna ANT1 can be conducted with the receiving port RX; or the antenna ANT1 is conducted with the transmitting/receiving port TX-RX through the third single-pole-three-throw switch, and the antenna ANT0 is conducted with the receiving port RX.
Therefore, the switching of the conduction states of the first single-pole triple-throw switch, the second single-pole triple-throw switch, the third single-pole triple-throw switch and the double-pole double-throw switch can realize the 5G SRS function, the 5G receiving function and the radio frequency function of the first frequency band corresponding to the first radio frequency front-end module, simplify the radio frequency structure, multiplex two antennas, reduce the number of the antennas and facilitate the spatial layout.
It should be noted that the logic sequence for switching between the conducting states of the switches may be determined according to the actual working requirement of the radio frequency function, which is not limited in this embodiment of the present application.
Optionally, when the first partial antenna 151 is conducted with the first rf front-end module 12 through the first switching unit 161, the second partial antenna 152 is conducted with the second switching unit 162 and the second partial receiving port through the third switching unit 163, respectively. If the first radio frequency front-end module is a WIFI radio frequency front-end module, the radio frequency function of the WIFI can be realized in the time slot of the 5G SRS function.
Specifically, the first rf front-end module 12 is a WIFI rf front-end module, and the second rf front-end module 14 is a 5G rf front-end module, for example, which illustrates an implementation principle of the embodiment of the present application:
as shown in fig. 3 to 5, the radio frequency architecture may support 1T4R of N41/N78, and support SRS four-antenna transmission at ANT0, ANT1, ANT2, ANT3, where ANT2 and ANT3 are multiplexing WIFI antennas.
SRS function: three single-pole three-throw switches (SP3T) and one double-pole double-throw switch (DPDT) are switched to realize SRS routing of 1T4R, and the specific paths are a, b, c and d. The SRS signal paths of the paths a and b are realized by multiplexing WIFI antennas ANT2 and ANT 3.
Specifically, when the SRS signal is transmitted from 5G N41/N78 TX, the single-pole three-throw switch in the second switching unit 162 is switched to a and b respectively, and the double-pole two-throw switch is switched to c and d paths, so that the SRS transmission of 1T4R is implemented. Among them, the SRS signals of the paths a and b are switched to the antennas ANT2 and ANT3 by the single pole three throw switch in the first switching unit 161, so that two antennas of WIFI can be multiplexed.
The receiving paths of 5G N41/N78 are paths e, f, g, and h. The g and h receiving signals are realized by multiplexing WIFI antennas, namely, the antenna ANT2 and ANT3 which are used for multiplexing WIFI as SRS signals are realized. Switching between SRS transmission, 5G reception, and WIFI signals of the antennas ANT2 and ANT3 is then performed by a single pole three throw switch in the first switching unit 161. The e and f receiving signals respectively enter the 5G radio frequency front end module through the antennae ANT0 and ANT1 of 5G N41/N78 and the double-pole double-throw switch.
WIFI paths are i and j, and WIFI can distinguish SRS signals and receiving signals of N41/N78 in a time division mode through SP3T switches on i and j. That is, two SP3T switches on ANT2 and ANT3 switch to paths i and j in the WIFI timeslot, and then the WIFI signal accesses the WIFI radio frequency front end module.
According to the embodiment of the application, the WIFI antenna and the N41/78 antenna are integrated, the SRS function of N41/781T 4R under the4 antenna is achieved, the number of N41/78 and WIFI receiving and transmitting channels is not influenced, and therefore the number of radio frequency front-end devices and the number of antennas are reduced.
The following describes the radio frequency structure of the embodiment of the present application with reference to the 2T4R scenario of 5G NR:
as shown in fig. 6, the second rf front-end module 14 includes: two transmit and receive ports TX-RX1, TX-RX2 and two receive ports RX1, RX 2. The four antennas are connected to the transceiving ports TX-RX1, TX-RX2 and the receiving ports RX1, RX2 through the switching module 16.
When the switching module 16 is in the second conducting mode, every two of the four antennas are conducted in a one-to-one correspondence with the two transceiving ports TX-RX1 and TX-RX2 in a polling manner; wherein, when two of the four antennas are conducted in one-to-one correspondence with the two transceiving ports TX-RX1, TX-RX2, the other two of the four antennas are conducted in one-to-one correspondence with the two receiving ports RX1, RX 2.
For example: when the antenna ANT2 is conducted to the TX-RX1 through the switching module 16 and the antenna ANT0 is conducted to the TX-RX3 through the switching module 16, the antenna ANT3 can be conducted to the RX2 through the switching module 16, and the antenna ANT1 can be conducted to the RX1 through the switching module 16. Alternatively, when the antenna ANT3 is conducted with the transceiving port TX-RX1 through the switching module 16, and the antenna ANT1 is conducted with the transceiving port TX-RX3 through the switching module 16, the antenna ANT2 may be conducted with the receiving port RX1 through the switching module 16, and the antenna ANT1 may be conducted with the receiving port RX2 through the switching module 16, that is, the 2T4R function of the 5G NR scenario is realized.
Optionally, the switching module 16 includes: a first switching unit 161, a second switching unit 162, a third switching unit 163, and a fourth switching unit 164. The first partial antenna 151 is connected to the first rf front-end module 12, the second switching unit 162, and the receiving port through the first switching unit 161; the second switching unit 162 is connected to one of the two transceiving ports.
The second partial antenna 152 is connected to the fourth switching unit 164 and the other of the two transceiving ports through the third switching unit 163; the fourth switching unit 164 is connected to the receiving port.
In the first conducting mode, the first antenna 151 is conducted to the first rf front-end module 12 through the first switching unit 161; in the second conduction mode, the first antenna 151 is conducted with the second switching unit 162 and the receiving port through the first switching unit 161, and the second antenna 152 is conducted with the transceiving port and the fourth switching unit through the third switching unit 163.
For example: in the second conducting mode, one of the first antennas 151 is conducted to the TX-RX1 through the first and second switching units 161 and 162, and the other antenna 151 is conducted to the RX1 through the first switching unit 161; and one of the second partial antennas 152 is conducted to the TX-RX2 through the third switching unit 163, and one of the second partial antennas 152 is conducted to the RX2 through the third switching unit 163 and the fourth switching unit 164.
Alternatively, the first partial antenna 151 includes a first antenna ANT2 and a second antenna ANT3, and the first switching unit 161 includes a first switch and a second switch.
A first terminal of the first switch is connected to the first antenna ANT2, a second terminal of the first switch is connected to the first rf front-end module 12, a third terminal of the first switch is connected to the second switching unit 162, and a fourth terminal of the first switch is connected to the first receiving port RX 1; the first switch is switchable between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted.
A first terminal of the second switch is connected to the second antenna ANT3, a second terminal of the first switch is connected to the first rf front-end module 12, a third terminal of the second switch is connected to the second switching unit 162, and a fourth terminal of the second switch is connected to a second receiving port RX 2; the second switch is switchable between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted.
Optionally, the first switch is a first single pole, three throw switch (SP3T) and the second switch is a second single pole, three throw switch. Thus, the antenna ANT2 can be conducted with the first rf front end module 12 by switching the conducting state of the first single-pole-three-throw switch, or the antenna ANT2 can be conducted with the transceiving port TX-RX1 by the second switching unit 162, or the antenna ANT2 can be conducted with the receiving port RX 1. And by switching the conducting state of the second single-pole-three-throw switch, the antenna ANT3 can be conducted with the first rf front-end module 12, or the antenna ANT3 is conducted with the TX-RX1 through the second switching unit 162, or the antenna ANT3 is conducted with the RX 2.
As shown in fig. 7, the switching module 16 includes: a first switching unit 161, a second switching unit 162, a third switching unit 163, and a fourth switching unit 164.
The first antenna 151 is connected to the first rf front-end module 12, the second switching unit 162, the third switching unit 163, and the receiving port through the first switching unit 161.
The second partial antenna 151 is connected to the second switching unit 162, the third switching unit 163, and the receiving port through the fourth switching unit 164; the second switching unit 162 is connected to one of the two transceiving ports; the third switching unit 163 is connected to the other of the two transceiving ports.
In the first conducting mode, the first antenna 151 is conducted to the first rf front-end module 12 through the first switching unit 161; in the second conduction mode, the first antenna portion 151 is conducted with the second switching unit 162 and the third switching unit 163 through the first switching unit 161, or the second antenna portion 152 is conducted with the second switching unit 162 and the third switching unit 163 through the fourth switching unit 164.
For example: in the second conducting mode, two antennas of the first antenna portion 151 and two transceiving ports TX-RX1 and TX-RX2 are conducted in a one-to-one correspondence, and two antennas of the second antenna portion 152 and two receiving ports RX1 and RX2 are conducted, so that the 2T4R function under 5G NR is realized.
Optionally, when the first antenna 151 is conducted with the first rf front-end module 12 through the first switching unit 161, the second antenna 152 is conducted with the second switching unit 162 and the third switching unit 163 through the fourth switching unit 164. If the first radio frequency front-end module is a WIFI radio frequency front-end module, the radio frequency function of the WIFI can be realized in the time slot of the 5G SRS function.
Optionally, the first partial antenna 151 includes a first antenna ANT2 and a second antenna ANT3, and the first switching unit 161 includes a first switch and a second switch;
a first terminal of the first switch is connected to the first antenna ANT2, a second terminal of the first switch is connected to the first rf front-end module 12, a third terminal of the first switch is connected to the second switching unit 162, and a fourth terminal of the first switch is connected to one of the two receiving ports; the first switch is switchable between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted.
A first terminal of the second switch is connected to the second antenna ANT3, a second terminal of the first switch is connected to the first rf front-end module 12, a third terminal of the second switch is connected to the third switching unit 163, and a fourth terminal of the second switch is connected to the other of the two receiving ports; the second switch is switchable between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted.
Optionally, the first switch is a first single pole, three throw switch (SP3T) and the second switch is a second single pole, three throw switch. Thus, the antenna ANT2 can be conducted with the first rf front end module 12 by switching the conducting state of the first single-pole-three-throw switch, or the antenna ANT2 can be conducted with the transceiving port TX-RX1 by the second switching unit 162, or the antenna ANT2 can be conducted with the receiving port RX 1. And by switching the conducting state of the second single-pole-three-throw switch, the antenna ANT3 can be conducted with the first rf front-end module 12, or the antenna ANT3 is conducted with the TX-RX2 through the second switching unit 162, or the antenna ANT3 is conducted with the RX 2.
Alternatively, the second partial antenna 152 includes a third antenna ANT0 and a fourth antenna ANT1, and the fourth switching unit 164 includes a third switch and a fourth switch.
A first terminal of the third switch is connected to the third antenna ANT0, a second terminal of the third switch is connected to the second switching unit 162, and a third terminal of the third switch is connected to one of the two receiving ports; the third switch is switchable between a state that the first end and the second end are conducted and a state that the first end and the third end are conducted;
a first terminal of the fourth switch is connected to the fourth antenna ANT1, a second terminal of the fourth switch is connected to the third switching unit 163, and a third terminal of the fourth switch is connected to the other of the two receiving ports; the fourth switch is switchable between a state that the first end and the second end are conducted and a state that the first end and the third section are conducted.
Optionally, the third switch is a first single-pole double-throw switch and the second switch is a second single-pole double-throw switch. In this way, the first single-pole double-throw switch can realize that the antenna ANT0 is conducted with the second switching unit 162, or the antenna ANT0 is conducted with the receiving port RX 1; and through the second single-pole double-throw switch, it may be achieved that the antenna ANT1 is conducted with the third switching unit 163, or the antenna ANT1 is conducted with the receiving port RX 2.
Optionally, the second switching unit 162 may be a third single-pole double-throw switch, by which the transmitting/receiving port TX-RX1 is conducted with the first switch, or the transmitting/receiving port TX-RX1 is conducted with the first single-pole double-throw switch.
Optionally, the third switching unit 163 may be a fourth single-pole double-throw switch, by which the transmitting/receiving port TX-RX2 and the second switch are turned on, or the transmitting/receiving port TX-RX2 and the second single-pole double-throw switch are turned on.
According to the scheme in the embodiment of the application, the antenna multiplexing of the 5G radio frequency front end module and the WIFI radio frequency front end module is realized through the design of the switching module, so that the number of antennas in the electronic equipment can be reduced, the spatial layout is facilitated, and the switching device in the switching module in the embodiment of the application is simple in structure, the cost is reduced, and the loss is reduced.
The embodiment of the present application further provides an electronic device, which includes the radio frequency structure described above, and can achieve the technical effect of the radio frequency structure in the above embodiments, and for avoiding repetition, details are not repeated here.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
While the foregoing is directed to the preferred embodiment of the present application, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the disclosure and, therefore, the scope of the disclosure is to be defined by the appended claims.
Claims (12)
1. A radio frequency structure, comprising:
the system comprises a first transceiver and a first radio frequency front end module, wherein the first transceiver is connected with the first radio frequency front end module, and the working frequency corresponding to the first radio frequency front end module covers a first frequency band;
the second transceiver is connected with the second radio frequency front end module, and the working frequency corresponding to the second radio frequency front end module covers a second frequency band;
the first part of the four antennas are respectively connected with the first radio frequency front end module and the second radio frequency front end module through the switching module; a second part of the four antennas except the first part of the four antennas is connected with the second radio frequency front end module through the switching module;
the switching module is switchable between two conduction modes; under the condition that the switching module is in a first conduction mode, the first partial antenna is conducted with the first radio frequency front end module, and the first partial antenna works in a signal transceiving mode of the first frequency band; and under the condition that the switching module is in a second conduction mode, the four antennas are conducted with the second radio frequency front end module, and all the four antennas work in a signal receiving mode of the second frequency band or work in a polling mode for transmitting Sounding Reference Signals (SRS).
2. The radio frequency structure of claim 1, wherein the second radio frequency front end module comprises:
the four antennas are respectively connected with the transceiving port and the receiving port through the switching module;
when the switching module is in the second conduction mode, the four antennas are conducted with the transceiving ports in a polling mode; wherein, when a first antenna of the four antennas is conducted with the transceiving port, at least one antenna of the four antennas except the first antenna is conducted with at least one receiving port in a one-to-one correspondence manner.
3. The radio frequency structure according to claim 2, wherein the switching module comprises a first switching unit, a second switching unit and a third switching unit;
the first part of antennas are respectively connected with the first radio frequency front end module, the second switching unit and a first part of receiving ports in the three receiving ports through the first switching unit;
the second partial antenna is respectively connected with the second switching unit and a second partial receiving port except the first partial receiving port in the three receiving ports through the third switching unit; the second switching unit is connected with the transceiving port;
in the first conduction mode, the first partial antenna is conducted with the first radio frequency front end module through the first switching unit;
in the second conducting mode, the first antenna part is respectively conducted with the second switching unit and the first receiving port through the first switching unit, and the second antenna part is respectively conducted with the second switching unit and the second receiving port through the third switching unit.
4. The radio frequency structure according to claim 3, wherein when the first antenna portion is conducted to the first radio frequency front end module through the first switching unit, the second antenna portion is conducted to the second switching unit and the second receiving port through the third switching unit.
5. The radio frequency structure of claim 1, wherein the second radio frequency front end module comprises:
the four antennas are connected with the transceiving ports and the receiving ports through the switching module;
when the switching module is in the second conduction mode, every two antennas in the four antennas are conducted with the two transceiving ports in a one-to-one correspondence manner in a polling manner; when two of the four antennas are conducted with the two transceiving ports in a one-to-one correspondence manner, the other two of the four antennas are conducted with the two receiving ports in a one-to-one correspondence manner.
6. The radio frequency structure according to claim 5, wherein the switching module comprises: the switching device comprises a first switching unit, a second switching unit, a third switching unit and a fourth switching unit;
the first part of antennas are respectively connected with the first radio frequency front end module, the second switching unit and the receiving port through the first switching unit; the second switching unit is connected with one of the two transceiving ports;
the second partial antenna is respectively connected with the fourth switching unit and the other of the two transceiving ports through the third switching unit; the fourth switching unit is connected with the receiving port;
in the first conduction mode, the first partial antenna is conducted with the first radio frequency front end module through the first switching unit;
in the second conduction mode, the first partial antenna is conducted with the second switching unit and the receiving port through the first switching unit, and the second partial antenna is conducted with the transceiving port and the fourth switching unit through the third switching unit.
7. The radio frequency structure according to claim 3 or 6, wherein the first partial antenna includes a first antenna and a second antenna, and the first switching unit includes a first switch and a second switch;
a first end of the first switch is connected with the first antenna, a second end of the first switch is connected with a first radio frequency front end module, a third end of the first switch is connected with the second switching unit, and a fourth end of the first switch is connected with a first receiving port; the first switch can be switched between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted;
a first end of the second switch is connected with the second antenna, a second end of the first switch is connected with the first radio frequency front end module, a third end of the second switch is connected with the second switching unit, and a fourth end of the second switch is connected with a second receiving port; the second switch can be switched between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted;
wherein the first receiving port and the second receiving port are any two of the receiving ports.
8. The radio frequency structure according to claim 5, wherein the switching module comprises: the switching device comprises a first switching unit, a second switching unit, a third switching unit and a fourth switching unit;
the first part of antennas are respectively connected with the first radio frequency front end module, the second switching unit, the third switching unit and the receiving port through the first switching unit;
the second partial antenna is respectively connected with the second switching unit, the third switching unit and the receiving port through the fourth switching unit; the second switching unit is connected with one of the two transceiving ports; the third switching unit is connected with the other of the two transceiving ports;
in the first conduction mode, the first partial antenna is conducted with the first radio frequency front end module through the first switching unit;
in the second conduction mode, the first partial antenna is conducted with the second switching unit and the third switching unit through the first switching unit, or the second partial antenna is conducted with the second switching unit and the third switching unit through the fourth switching unit.
9. The rf structure of claim 8, wherein the second antenna portion is conducted to the second switching unit and the third switching unit through the fourth switching unit when the first antenna portion is conducted to the first rf front end module through the first switching unit.
10. The radio frequency structure according to claim 8, wherein the first partial antenna includes a first antenna and a second antenna, and the first switching unit includes a first switch and a second switch;
a first end of the first switch is connected with the first antenna, a second end of the first switch is connected with a first radio frequency front end module, a third end of the first switch is connected with the second switching unit, and a fourth end of the first switch is connected with one of the two receiving ports; the first switch can be switched between a state that the first end and the second end are conducted, a state that the first end and the third section are conducted and a state that the first end and the fourth end are conducted;
a first end of the second switch is connected with the second antenna, a second end of the first switch is connected with the first radio frequency front end module, a third end of the second switch is connected with the third switching unit, and a fourth end of the second switch is connected with the other of the two receiving ports; the second switch is switchable between a state that the first end and the second end are conducted, a state that the first end and the third end are conducted and a state that the first end and the fourth end are conducted.
11. The radio frequency structure according to claim 8, wherein the second partial antenna includes a third antenna and a fourth antenna, and the fourth switching unit includes a third switch and a fourth switch;
a first end of the third switch is connected with the third antenna, a second end of the third switch is connected with the second switching unit, and a third end of the third switch is connected with one of the two receiving ports; the third switch is switchable between a state that the first end and the second end are conducted and a state that the first end and the third section are conducted;
a first end of the fourth switch is connected with the fourth antenna, a second end of the fourth switch is connected with the third switching unit, and a third end of the fourth switch is connected with the other of the two receiving ports; the fourth switch is switchable between a state that the first end and the second end are conducted and a state that the first end and the third end are conducted.
12. An electronic device comprising a radio frequency structure as claimed in any one of claims 1 to 11.
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| CN113067596B (en) | 2022-08-26 |
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