CN211606531U - Signal processing circuit and electronic equipment - Google Patents
Signal processing circuit and electronic equipment Download PDFInfo
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- CN211606531U CN211606531U CN202020782978.9U CN202020782978U CN211606531U CN 211606531 U CN211606531 U CN 211606531U CN 202020782978 U CN202020782978 U CN 202020782978U CN 211606531 U CN211606531 U CN 211606531U
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Abstract
The embodiment of the utility model provides a signal processing circuit and electronic equipment, wherein, signal processing circuit includes: the antenna comprises a radio frequency transceiver, N first radio frequency transmission modules, N second radio frequency transmission modules, a switch module and N antennas; n first ends of the radio frequency transceiver are respectively connected with first ends of N first radio frequency transmission modules, second ends of the N first radio frequency transmission modules are respectively connected with N first secondary interfaces of the switch module, and N second interfaces of the switch module are respectively connected with N antennas; n second ends of the radio frequency transceiver are respectively connected with first ends of N second radio frequency transmission modules, and second ends of the N second radio frequency transmission modules are respectively connected with N second interfaces of the switch module; the switch module is communicated with any first interface and any second interface of the switch module, or communicated with any second interface and any second interface of the switch module. The embodiment of the utility model provides a reduce the quantity that realizes the required antenna of multifrequency section signal processing, reduced manufacturing cost.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a signal processing circuit and electronic equipment.
Background
With the development of the times, the requirements of users on the communication rate, the network coverage, the connection capacity, the network delay and the like of the mobile communication network are higher and higher, so that new mobile communication technologies appear, for example: fifth Generation mobile communication technology (5th-Generation, 5G).
The frequency band of radio frequency signals in new mobile communication technologies is becoming wider and wider, for example: the 5G network frequency band comprises: n77 band, n78 band, n79 band, etc. Since radio frequency signals in different frequency bands have different frequencies and powers, in the related art, a plurality of antennas are required to be disposed, for example: taking N78+ N79 with a 5G networking mode as an SA mode as an example, 8 rf antennas need to be arranged in the rf architecture to implement a four-path reception scheme for rf signals in N78 and N79 frequency bands, and the number of the 8 rf antennas is too many, which increases the production cost of the signal processing circuit.
As can be seen from the above, the rf architecture in the related art has the disadvantage of high production cost of the signal processing circuit.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a signal processing circuit and electronic equipment to solve the higher problem of the manufacturing cost of the signal processing circuit that the radio frequency framework among the correlation technique exists.
In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a signal processing circuit,
the method comprises the following steps: the antenna comprises a radio frequency transceiver, N first radio frequency transmission modules, N second radio frequency transmission modules, a switch module and N antennas, wherein N is an integer greater than 1;
the N first ends of the radio frequency transceiver are respectively connected with the first ends of the N first radio frequency transmission modules in a one-to-one correspondence manner, the second ends of the N first radio frequency transmission modules are respectively connected with the N first secondary interfaces of the switch module in a one-to-one correspondence manner, and the N second interfaces of the switch module are respectively connected with the N antennas in a one-to-one correspondence manner;
n second ends of the radio frequency transceiver are respectively connected with first ends of N second radio frequency transmission modules in a one-to-one correspondence manner, and second ends of the N second radio frequency transmission modules are respectively connected with N second secondary interfaces of the switch module in a one-to-one correspondence manner;
the switch module is communicated with any first secondary interface and any second interface of the switch module, or any second secondary interface and any second interface of the switch module; the switch module can be switched among a plurality of states, under the condition that the switch module is in a first state, the N first secondary interfaces of the switch module are respectively connected with the N second interfaces, and under the condition that the switch module is in a second state, the N second secondary interfaces of the switch module are respectively connected with the N second interfaces.
In a second aspect, the embodiment of the present invention further provides an electronic device, including the embodiment of the present invention provides in a first aspect the signal processing circuit.
The utility model provides a signal processing circuit, include: the antenna comprises a radio frequency transceiver, N first radio frequency transmission modules, N second radio frequency transmission modules, a switch module and N antennas, wherein N is an integer greater than 1; the N first ends of the radio frequency transceiver are respectively connected with the first ends of the N first radio frequency transmission modules in a one-to-one correspondence manner, the second ends of the N first radio frequency transmission modules are respectively connected with the N first secondary interfaces of the switch module in a one-to-one correspondence manner, and the N second interfaces of the switch module are respectively connected with the N antennas in a one-to-one correspondence manner; n second ends of the radio frequency transceiver are respectively connected with first ends of N second radio frequency transmission modules in a one-to-one correspondence manner, and second ends of the N second radio frequency transmission modules are respectively connected with N second secondary interfaces of the switch module in a one-to-one correspondence manner; the switch module is communicated with any first secondary interface and any second interface of the switch module, or any second secondary interface and any second interface of the switch module; the switch module can be switched among a plurality of states, under the condition that the switch module is in a first state, the N first secondary interfaces of the switch module are respectively connected with the N second interfaces, and under the condition that the switch module is in a second state, the N second secondary interfaces of the switch module are respectively connected with the N second interfaces. The utility model discloses a N antennas realize the transmit-receive function of N first radio frequency transmission module and N second radio frequency transmission module simultaneously, avoid setting up N antennas for N first radio frequency transmission module respectively to set up another N antennas for N second radio frequency transmission module, thereby reduced the antenna quantity among the signal processing circuit, and then reduced signal processing circuit's manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a structural diagram of a signal processing circuit according to an embodiment of the present invention;
fig. 2 is a block diagram of another signal processing circuit according to an embodiment of the present invention;
fig. 3 is a structural diagram of a radio frequency transceiver module in another signal processing circuit according to an embodiment of the present invention;
fig. 4 is a structural diagram of a radio frequency receiving module in another signal processing circuit according to an embodiment of the present invention;
fig. 5 is a structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Along with communication technology's development, radio frequency signal's bandwidth has more and more wide development trend, the embodiment of the utility model provides a signal processing circuit adopts the radio frequency framework of Time Division Duplex (Time Division Duplex, TDD) mode to receive and transmit radio frequency signal to can realize being connected different radio frequency signal transmission module and same antenna group, when signal processing circuit adopts different radio frequency signal transmission module to carry out signal transmission, can share the same antenna group and carry out radio frequency transmission and receipt, thereby reduced the quantity of antenna.
Referring to fig. 1, fig. 1 is a structural diagram of a signal processing circuit according to an embodiment of the present invention, and as shown in fig. 1, the signal processing circuit 100 includes: the radio frequency transceiver 1, N first radio frequency transmission modules 2, N second radio frequency transmission modules 3, a switch module 4 and N antennas 5, wherein N is an integer greater than 1.
The N first ends of the radio frequency transceiver 1 are respectively connected with the first ends of the N first radio frequency transmission modules 2 in a one-to-one correspondence manner, the second ends of the N first radio frequency transmission modules 2 are respectively connected with the N first secondary interfaces of the switch module 4 in a one-to-one correspondence manner, and the N second interfaces of the switch module 4 are respectively connected with the N antennas 5 in a one-to-one correspondence manner; the N second ends of the radio frequency transceiver 1 are respectively connected with the first ends of the N second radio frequency transmission modules 3 in a one-to-one correspondence manner, and the second ends of the N second radio frequency transmission modules 3 are respectively connected with the N second secondary interfaces of the switch module 4 in a one-to-one correspondence manner; the switch module 4 connects any one of the first interfaces and any one of the second interfaces thereof, or connects any one of the second interfaces and any one of the second interfaces thereof, according to the control signal transmitted by the radio frequency transceiver 1.
The switch module 4 can be switched among a plurality of states, N first secondary interfaces of the switch module 4 are respectively connected to N second interfaces under the condition that the switch module 4 is in the first state, and N second secondary interfaces of the switch module 4 are respectively connected to N second interfaces under the condition that the switch module 4 is in the second state.
In the specific implementation, only one of the first radio frequency transmission module 2 and the second radio frequency transmission module 3 is in a working state at the same time, and in the working state of the first radio frequency transmission module 2, the radio frequency transceiver 1 sends a first control signal to the switch module 4 so as to control the switch module 4 to communicate any first interface and any second interface of the switch module 4; in the working state of the second rf transmission module 3, the rf transceiver 1 sends a second control signal to the switch module 4 to control the switch module 4 to connect any second secondary interface and any second interface.
In an implementation, the radio frequency transceiver 1 may be a chip in the radio frequency transceiver, and the N first terminals of the radio frequency transceiver 1 may include a signal transmitting terminal and a signal receiving terminal. In addition, the working frequency band of the first radio frequency transmission module 2 is a first frequency band, the working frequency band of the second radio frequency transmission module 3 is a second frequency band, and the first frequency band is different from the second frequency band. In this way, when the frequency of the radio frequency signal generated by the radio frequency transceiver 1 is in the first frequency band, the radio frequency transceiver 1 sends a first control signal to the switch module 4; when the frequency of the radio frequency signal generated by the radio frequency transceiver 1 is located in the second frequency band, the radio frequency transceiver 1 sends a second control signal to the switch module 4, and it should be noted that, at the same time, the working frequency band of the signal processing circuit 100 is one of the first frequency band and the second frequency band.
In addition, in a specific implementation, N may be equal to 4, and a 4-way reception scheme of the radio frequency signal in the first frequency band or the second frequency band may be implemented by the signal processing circuit 100, and specifically, a 1T4R (1-way transmission, 4-way reception) signal transmission scheme and a 2T4R (2-way transmission, 4-way reception) signal transmission scheme may be implemented.
For example: the N first rf signal transmission modules 2 include: 2 Signal transceiver modules and 2 Signal receiving modules of N78 frequency channel, then can fix and use a N78 Signal transceiver module to carry out the Signal transmission function, and all Signal transceiver modules and Signal receiving module can realize the Signal receiving function, then radio frequency transceiver 1 can be according to the Signal quality of the N78 radio frequency Signal of receiving on each antenna, confirm that the best one of Signal quality communicates with the N78 Signal transceiver module that carries out the Signal transmission function, like this, can realize that the radio frequency Signal transmission function surveys reference Signal (sounding reference Signal, SRS) antenna wheel transmission on 4 antennas, promote the performance of radio frequency emission Signal.
For another example: the N first rf signal transmission modules 2 include: 2 Signal transceiver modules and 2 Signal receiving modules of N78 frequency channel, then can fix and use a N78 Signal transceiver module to communicate with the target antenna, in order to fix and use this target antenna to carry out the Signal transmission function, and all Signal transceiver modules and Signal receiving modules can realize the Signal receiving function, then radio frequency transceiver 1 can be according to the Signal quality of the N78 radio frequency Signal received on each antenna, confirm that the best one of Signal quality communicates with another N78 Signal transceiver module, like this, can realize that radio frequency Signal transmission function Surveys Reference Signal (SRS) antenna wheel transmission on 3 antennas, promote the performance of radio frequency emission Signal.
It should be noted that, in a specific implementation, the first rf transmission module 2 and the second rf transmission module 3 may also be rf transmission modules with different structures or different rf powers, and the value of N may also be 5, 6, etc., where in fig. 1, only N is equal to 4 as an example, and is not limited specifically herein.
In a specific implementation, the switch module 4 may include 1, 2, or 3 switches, and in a case that the switch module includes 2 or 3 switches, two adjacent switches have a connection relationship therebetween, so that any rf transmission module connected to a first target switch can communicate with any antenna connected to a second target switch, where the first target switch and the second target switch are adjacent to each other.
As an alternative embodiment, as shown in fig. 2, the switch module 4 includes a first switch 41, a second switch 42, and a third switch 43, and the control terminal of the radio frequency transceiver 1 is connected to the control terminal of the first switch 41, the control terminal of the second switch 42, and the control terminal of the third switch 43; the sum of the number of the first secondary interfaces and the number of the second secondary interfaces of the first switch 41 is equal to L, the sum of the number of the first secondary interfaces and the number of the second secondary interfaces of the second switch 42 is equal to M, the sum of the number of the first secondary interfaces and the number of the second secondary interfaces of the third switch 43 is equal to H, and the sum of L, M and H is equal to 2 times N.
Specifically, the second interface S11 of the first switch 41 is connected to the first antenna ANT1, the third interface S12 of the first switch 41 is connected to the third interface S21 of the second switch 42, the fourth interface S13 of the first switch 41 is connected to the fourth interface S28 of the second switch 42, the second interface 22 of the second switch 42 is connected to the second antenna ANT2, the fifth interfaces S23 and S24 of the second switch 42 are connected to the third interfaces S36 and S35 of the third switch 43, and the second interfaces S31 and S32 of the third switch 43 are connected to the third antennas ANT3 and ANT4, as shown in the embodiment shown in fig. 2, the specific connection structure is: s23 connects S36, S24 connects S35, S31 connects ANT3, S32 connects ANT 4.
Wherein the N antennas 5 include 1 first antenna ANT1, 1 second antenna ANT2, and two third antennas: ANT3 and ANT4, the first switch 41 connects its first S16 or second (S15 or S14) interface with the second S11 interface, or connects its first S16 or second (S15 or S14) interface with the third S12 interface, or connects its second S11 interface with the fourth S13 interface according to the control signal transmitted by the radio frequency transceiver 1; the second switch 42 communicates its first secondary interface S27 or S25 or second secondary interface S26 with the second interface S22, fourth interface S21 or fifth interface (S23 or S24), or communicates its third interface S28 with the second interface S22, fourth interface S21 or fifth interface (S23 or S24) according to the control signal transmitted by the radio frequency transceiver 1; the third switch 43 communicates its second interface (S31 or S32) with the first secondary interface S34, the second secondary interface S33, or the third interface (S35 or S36) according to a control signal transmitted by the radio frequency transceiver 1.
It should be noted that, as shown in fig. 2, in the embodiment, N is equal to 4 for example, in this embodiment, the first switch 41 has two second interfaces (S14 and S15), the second switch 42 has two first interfaces (S25 and S27) and two fifth interfaces (S23 and S24), and the third switch 43 has two second interfaces (S31 and S32) and two third interfaces (S35 and S36), so as to implement one-to-one connection of two third antennas (ANT3 and ANT4) on the two second interfaces of the third switch 43. In a specific implementation, two antennas may be disposed on the first switch 41 or the second switch 42, and the connection relationship between the switches is adjusted accordingly, which is not limited herein.
In addition, in different application scenarios, the number of antennas may be changed, for example, 3 antennas, 5 antennas, etc. may be provided, so that the number of switches may also be increased or decreased according to the number of antennas, which is not limited herein.
In the embodiment shown in fig. 2, N is equal to 4, L is equal to 3, M is equal to 3, H is equal to 2, the first switch 41 is a double-pole, four-throw switch, the second switch 42 is a four-pole, four-throw switch, and the third switch 43 is a double-pole, four-throw switch. Specifically, the first switch 41 and the third switch 43 may be a double-pole four-throw switch of the type QM11024, which can reduce the rf loss caused by the double-pole four-throw switch, thereby improving the performance of signal transmission.
In a specific implementation, the first switch 41 includes two blades as shown in fig. 2, wherein one end of the first blade is fixedly connected to S11, and the free end thereof can be connected to any one of S13, S14, S15 and S16, and one end of the second blade is fixedly connected to S12, and the free end thereof can be connected to any one of S13, S14, S15 and S16 different from that of the first blade.
Accordingly, the second switch 42 and the third switch 43 as shown in fig. 2 have the same operation principle as the first switch 41, and are not specifically described herein.
The following description specifically takes the case where N is equal to 4, the working frequency band of the first rf receiving module 2 is N78 frequency band, and the working frequency band of the second rf receiving module 3 is N79 frequency band as an example:
as an optional implementation manner, as shown in fig. 2, the 4 first rf transmission modules 2 respectively include: 2 first rf transceiver modules (N78 TRX1 and N78TRX 2) and 2 first rf receiver modules (N78 RX3 and N78 RX4), wherein the 4 second rf transmission modules 3 are respectively: 2 second rf transceiver modules (N79 TRX1 and N79 TRX2) and 2 second rf receiver modules (N79RX3 and N79RX 4).
In this embodiment, the first rf transmission module 2 and the second rf transmission module 3 are both configured to be 2 rf transceiver modules and 2 rf receiving modules, so that the first rf transmission module 2 and the second rf transmission module 3 can realize a 2-channel transmit and 4-channel receive (2T4R) rf transmission function, and the reliability of signal transmission of the first rf transmission module 2 and the second rf transmission module 3 is improved.
Furthermore, N78TRX1 is connected to the first secondary interface S16 of the first switch 41, N78TRX2 is connected to the first secondary interface S27 of the second switch 42, N78 RX3 is connected to S25 of the second switch 42, and N78 RX4 is connected to S34 of the third switch 43; n79 TRX1 is connected to S15 of the first switch 41, N79 TRX2 is connected to S26 of the second switch 42, N79RX3 is connected to S14 of the first switch 41, and N79RX4 is connected to S33 of the third switch 43.
It should be noted that, in a specific implementation, only 1 rf transceiver module and 3 rf receiver modules may be arranged in the first rf transmission module 2 and the second rf transmission module 3 to implement a 1T4R rf transmission mode under a Non-independent Network (NSA) architecture, and a specific number and a ratio of the rf transceiver modules and the rf receiver modules in the rf transmission module are not specifically limited herein.
In a specific implementation, as shown in fig. 2, each rf transmission module in the signal processing circuit 100 includes 2 rf transceiving modules and 2 rf receiving modules, which can implement a 1T4R rf transmission mode and a 2T4R rf transmission mode under a Stand Alone network (SA) architecture. The following description specifically describes the operation principle of the signal processing circuit 100 by taking the 1T4R rf transmission mode of the N78 rf signal as an example.
In a specific implementation, assuming that N78TRX1 is used for performing a signal transmission function, when receiving a signal, N78TRX1, N78TRX2, N78 RX3 and N78 RX4 may all be used for receiving a radio frequency signal, specifically, when receiving a signal, N78TRX1 may receive a signal through an antenna ANT1, N78TRX2 may receive a signal through an antenna ANT2, N78 RX3 may receive a signal through an antenna ANT3, and N78 RX4 may receive a signal through an antenna ANT4, so that the signal can be connected to N78TRX1 according to one of 4 receiving paths with the best signal quality to perform signal transmission using the radio frequency antenna, which may specifically include the following four cases:
when the first switch 41 communicates its S11 with S16, N78TRX1 is implemented to transmit a radio frequency signal using ANT 1;
when the first switch 41 communicates its S12 with S16, and the second switch 42 communicates its S22 with S28, N78TRX1 is enabled to transmit a radio frequency signal using ANT 2;
when the first switch 41 communicates its S12 with S16, the second switch 42 communicates its S23 with S28, and the third switch 43 communicates its S31 with S36, N78TRX1 is enabled to transmit a radio frequency signal using ANT 3;
when the first switch 41 communicates its S12 with S16, the second switch 42 communicates its S23 with S28, and the third switch 43 communicates its S32 with S36, N78TRX1 is enabled to transmit a radio frequency signal using ANT 4.
Thus, under the 1T4R radio frequency transmission mode of N78, the SRS antenna transmission can be carried out on 4 antennas by the radio frequency transmission path, so that the reliability of radio frequency transmission signals is improved.
Correspondingly, the N79 radio frequency signal can also realize the SRS antenna polling function in the 1T4R radio frequency transmission mode, and the specific working principle is the same as that of the SRS antenna polling function in the 1T4R radio frequency transmission mode of the N78 radio frequency signal, and is not described herein again.
The following description specifically describes the operation principle of the signal processing circuit 100 by taking the 2T4R rf transmission mode of the N78 rf signal as an example.
In a specific implementation, assuming that N78TRX1 and N78TRX2 are used for performing a signal dual-transmission function, when receiving a signal, N78TRX1, N78TRX2, N78 RX3, and N78 RX4 may all be used to receive a radio frequency signal, and two of the 4 receiving paths with the best signal quality may be connected to N78TRX1 and N78TRX2 to perform signal transmission using the radio frequency antenna, which may specifically include the following four cases:
the first condition is as follows:
the first switch 41 communicates its S11 with S16, and N78TRX1 transmits using ANT1 (i.e., N78TRX1 is fixedly connected to ANT 1), then N78TRX2 can transmit on the remaining three antennas in turn, specifically:
when the second switch 42 communicates its S22 with S27, N78TRX2 firing using ANT2 is achieved;
n78TRX2 firing using ANT3 is achieved when the second switch 42 communicates its S23 with S27, while the third switch 43 communicates its S31 with S36;
the second switch 42 communicates its S23 with S27, while the third switch 43 communicates its S32 and S36, enabling N78TX2 to transmit using ANT 4.
Case two:
when the first switch 41 communicates S12 with S16 and the second switch 42 communicates S22 with S28, the N78TRX1 transmits using ANT2 (N78 TRX1 is fixed to be connected with ANT 2), and then the N78TRX2 transmits on the remaining three antennas, specifically:
n78TRX2 firing using ANT1 is achieved when the second switch 42 communicates its S21 with S27, while the first switch 41 communicates its S11 with S13;
n78TRX2 firing using ANT3 is achieved when the second switch 42 communicates its S23 with S27, while the third switch 43 communicates its S31 with S36;
n78TRX2 firing using ANT4 is achieved when the second switch 42 communicates its S23 with S27, while the third switch 43 communicates its S32 with S36.
Case three:
when the first switch 41 communicates its S12 with S16, the second switch 42 communicates its S23 with S28, and at the same time, the third switch 43 communicates its S31 with S36, N78TRX1 launching using ANT3 is achieved (N78 TRX1 is fixedly connected to ANT 3), then N78TRX2 rounds on the remaining three antennas, specifically:
n78TRX2 firing using ANT1 is achieved when the second switch 42 communicates its S21 with S27, while the first switch 41 communicates its S11 with S13;
when the second switch 42 communicates its S22 with S27, N78TRX2 firing using ANT2 is achieved;
n78TRX2 firing using ANT4 is achieved when the second switch 42 communicates its S24 with S27, while the third switch 43 communicates its S32 with S35.
Case four:
when the first switch 41 communicates its S12 with S16, the second switch 42 communicates its S23 with S28, and at the same time, the third switch 43 communicates its S32 with S36, N78TRX1 launching using ANT4 is achieved (N78 TRX1 is fixedly connected to ANT4), then N78TRX2 rounds on the remaining three antennas, specifically:
n78TRX2 firing using ANT1 is achieved when the second switch 42 communicates its S21 with S27, while the first switch 41 communicates its S11 with S13;
when the second switch 42 communicates its S22 with S27, N78TRX2 firing using ANT2 is achieved;
n78TRX2 firing using ANT3 is achieved when the second switch 42 communicates its S24 with S27, while the third switch 43 communicates its S31 with S35.
Correspondingly, the N79 rf signal can also realize the 2T4R rf transmission mode, and the specific working principle is the same as that of the 2T4R rf transmission mode of the N78 rf signal, which is not described herein again.
Specifically, as shown in fig. 2 and 3, the rf transceiver module includes: a first filter 10, a fourth switch 20, a first low noise amplifier 30 and a power amplifier 40.
Wherein, the first end of the first low noise amplifier 30 is connected to the radio frequency transceiver 1, the second end of the first low noise amplifier 30 is connected to the first interface of the fourth switch 20, the second end of the fourth switch 20 is connected to the first end of the first filter 10, the second end of the first filter 10 is used to be connected to the first switch 41, the second switch 42 or the third switch 43, the first end of the radio frequency transceiver 1 is connected to the first end of the power amplifier 40, the second end of the power amplifier 40 is connected to the third interface of the fourth switch 20, and the fourth switch 20 communicates its second interface with the first interface or the third interface.
It should be noted that the radio frequency transceiver module may be the first radio frequency transceiver module (N78 TRX1 and N78TRX 2) or the second radio frequency transceiver module (N79 TRX1 and N79 TRX2) in the embodiment shown in fig. 2, which is not limited herein.
In the working process, when the fourth switch 20 connects the second interface with the first interface, the radio frequency transceiver module can realize the radio frequency signal receiving function; when the fourth switch 20 connects the second interface with the third interface, the rf transceiver module can implement the rf signal transmitting function. Specifically, when the rf transceiver 1 needs to receive a signal, it may send a third control signal to the fourth switch 20, and the fourth switch 20 communicates the second interface with the first interface when receiving the third control signal; when the rf transceiver 1 needs to transmit a signal, it may send a fourth control signal to the fourth switch 20, and the fourth switch 20 communicates the second interface and the third interface when receiving the fourth control signal.
In addition, in operation, the first filter 10 is configured to perform filtering processing on a transmitted or received radio frequency signal to filter out harmonics, so as to improve communication quality of the radio frequency signal; the first low noise amplifier 30 is configured to perform power amplification on the received radio frequency signal to improve the strength of the received radio frequency signal, so as to improve the identification degree of the received radio frequency signal; the power amplifier 40 is used for power amplifying the radio frequency signal to be transmitted, so as to improve the reliability and communication quality of the transmitted radio frequency signal.
In addition, as shown in fig. 4, the radio frequency receiving module includes: a second filter 50 and a second low noise amplifier 60.
Wherein a first terminal of a second low noise amplifier 60 is connected to the radio frequency transceiver 1, a second terminal of the second low noise amplifier 60 is connected to a first terminal of the second filter 50, and a second terminal of the second filter 50 is used for being connected to the first switch 41, the second switch 42 or the third switch 43.
It should be noted that the rf receiving module may be the first rf receiving module (N78 RX3 and N78 RX4) or the second rf receiving module (N79RX3 and N79RX4) in the embodiment shown in fig. 2, which is not limited herein.
In addition, in operation, the second filter 50 is configured to perform filtering processing on the received radio frequency signal to filter out harmonics, so as to improve the communication quality of the radio frequency signal; the second low noise amplifier 60 is configured to amplify the power of the received rf signal to improve the strength of the received rf signal, so as to improve the identification of the received rf signal.
In this embodiment, when supporting N78 and N79, according to the reorganization and optimization of the existing radio frequency architecture, the SRS antenna round-robin functions of 1T4R and 2T4R are implemented, and meanwhile, under the condition of implementing a downlink 4 × 4 Multiple Input Multiple Output (MIMO) scheme, the number of antennas can be saved, thereby simplifying the complexity of the signal processing circuit and reducing the production cost of the signal processing circuit.
The utility model provides a signal processing circuit, include: the antenna comprises a radio frequency transceiver, N first radio frequency transmission modules, N second radio frequency transmission modules, a switch module and N antennas, wherein N is an integer greater than 1; the N first ends of the radio frequency transceiver are respectively connected with the first ends of the N first radio frequency transmission modules in a one-to-one correspondence manner, the second ends of the N first radio frequency transmission modules are respectively connected with the N first secondary interfaces of the switch module in a one-to-one correspondence manner, and the N second interfaces of the switch module are respectively connected with the N antennas in a one-to-one correspondence manner; n second ends of the radio frequency transceiver are respectively connected with first ends of N second radio frequency transmission modules in a one-to-one correspondence manner, and second ends of the N second radio frequency transmission modules are respectively connected with N second secondary interfaces of the switch module in a one-to-one correspondence manner; the switch module is communicated with any first secondary interface and any second interface of the switch module, or any second secondary interface and any second interface of the switch module; the switch module can be switched among a plurality of states, under the condition that the switch module is in a first state, the N first secondary interfaces of the switch module are respectively connected with the N second interfaces, and under the condition that the switch module is in a second state, the N second secondary interfaces of the switch module are respectively connected with the N second interfaces. The utility model discloses a N antennas realize the transmit-receive function of N first radio frequency transmission module and N second radio frequency transmission module simultaneously, avoid setting up N antennas for N first radio frequency transmission module respectively to set up another N antennas for N second radio frequency transmission module, thereby reduced the antenna quantity among the signal processing circuit, and then reduced signal processing circuit's manufacturing cost.
As shown in fig. 5, the embodiment of the present invention further provides an electronic device 500, where the electronic device 500 includes the signal processing circuit 100 provided in the previous embodiment.
In this embodiment, the electronic 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 embodiment of the utility model provides an electronic equipment can reduce the quantity of the antenna of installation wherein to reduce the occupation space of antenna, and reduced the complexity that the antenna was arranged, and can gain the same beneficial effect with the signal processing circuit that provides in last embodiment, for avoiding repetitiously, no longer describe here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. 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 apparatus that comprises the element.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (10)
1. A signal processing circuit, comprising: the antenna comprises a radio frequency transceiver, N first radio frequency transmission modules, N second radio frequency transmission modules, a switch module and N antennas, wherein N is an integer greater than 1;
the N first ends of the radio frequency transceiver are respectively connected with the first ends of the N first radio frequency transmission modules in a one-to-one correspondence manner, the second ends of the N first radio frequency transmission modules are respectively connected with the N first secondary interfaces of the switch module in a one-to-one correspondence manner, and the N second interfaces of the switch module are respectively connected with the N antennas in a one-to-one correspondence manner;
n second ends of the radio frequency transceiver are respectively connected with first ends of N second radio frequency transmission modules in a one-to-one correspondence manner, and second ends of the N second radio frequency transmission modules are respectively connected with N second secondary interfaces of the switch module in a one-to-one correspondence manner;
the switch module is communicated with any first secondary interface and any second interface of the switch module, or any second secondary interface and any second interface of the switch module; the switch module is switched among a plurality of states, N first secondary interfaces of the switch module are respectively connected with N second interfaces under the condition that the switch module is in a first state, and N second secondary interfaces of the switch module are respectively connected with N second interfaces under the condition that the switch module is in a second state.
2. The signal processing circuit of claim 1, wherein the switch module comprises a first switch, a second switch and a third switch, and a control terminal of the radio frequency transceiver is connected to a control terminal of the first switch, a control terminal of the second switch and a control terminal of the third switch; the sum of the numbers of the first secondary interfaces and the second secondary interfaces of the first switch is equal to L, the sum of the numbers of the first secondary interfaces and the second secondary interfaces of the second switch is equal to M, the sum of the numbers of the first secondary interfaces and the second secondary interfaces of the third switch is equal to H, and the sum of L, M and H is equal to 2 times of N;
the second interface of the first switch is connected with a first antenna, the third interface of the first switch is connected with the third interface of the second switch, the fourth interface of the first switch is connected with the fourth interface of the second switch, the second interface of the second switch is connected with a second antenna, the fifth interface of the second switch is connected with the third interface of the third switch, and the second interface of the third switch is connected with a third antenna;
the first switch communicates the first interface or the second interface with the second interface, or communicates the first interface or the second interface with the third interface, or communicates the second interface with the fourth interface; the second switch communicates the first interface or the second interface with the second interface, the fourth interface or the fifth interface, or communicates the third interface with the second interface, the fourth interface or the fifth interface; and the third switch is used for communicating the second interface with the first secondary interface, the second secondary interface or the third interface.
3. The signal processing circuit of claim 2 wherein N equals 4, L equals 3, M equals 3, H equals 2, the first switch is a double-pole, four-throw switch, the second switch is a four-pole, four-throw switch, and the third switch is a double-pole, four-throw switch.
4. The signal processing circuit of claim 3, wherein the signal processing circuit comprises 1 of the first antennas, 1 of the second antennas, and 2 of the third antennas, and two of the third antennas are connected with two of the second interfaces of the third switch in a one-to-one correspondence, respectively.
5. The signal processing circuit of any of claims 1 to 4, wherein an operating frequency band of the first RF transmission module is a first frequency band, an operating frequency band of the second RF transmission module is a second frequency band, and the first frequency band is different from the second frequency band.
6. The signal processing circuit according to any of claims 2 to 4, wherein the N equals 4, and the 4 first RF transmission modules are respectively: 2 first radio frequency transceiver module and 2 first radio frequency receiving module, 4 the second radio frequency transmission module is respectively: 2 second radio frequency transceiver modules and 2 second radio frequency receiving modules.
7. The signal processing circuit of claim 6, wherein 2 of the first rf transceiver modules are respectively connected to the first secondary interface of the first switch and the first secondary interface of the second switch, 2 of the first rf receiver modules are respectively connected to another first secondary interface of the second switch and the first secondary interface of the third switch, 2 of the second rf transceiver modules are respectively connected to the second secondary interface of the first switch and the second secondary interface of the second switch, and 2 of the second rf receiver modules are respectively connected to another second secondary interface of the first switch and the second secondary interface of the third switch.
8. The signal processing circuit of claim 6, wherein the radio frequency transceiver module comprises: the first filter, the fourth switch, the first low noise amplifier and the power amplifier;
the first end of the first low noise amplifier is connected with the radio frequency transceiver, the second end of the first low noise amplifier is connected with the first interface of the fourth switch, the second interface of the fourth switch is connected with the first end of the first filter, the second end of the first filter is used for being connected with the first switch, the second switch or the third switch, the first end of the radio frequency transceiver is connected with the first end of the power amplifier, the second end of the power amplifier is connected with the third interface of the fourth switch, and the second interface of the fourth switch is communicated with the first interface or the third interface.
9. The signal processing circuit of claim 6, wherein the radio frequency receiving module comprises: a second filter and a second low noise amplifier;
the first end of the second low noise amplifier is connected with the radio frequency transceiver, the second end of the second low noise amplifier is connected with the first end of the second filter, and the second end of the second filter is used for being connected with the first switch, the second switch or the third switch.
10. An electronic device, characterized in that it comprises a signal processing circuit according to any one of claims 1 to 9.
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| CN202020782978.9U CN211606531U (en) | 2020-05-12 | 2020-05-12 | Signal processing circuit and electronic equipment |
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| CN202020782978.9U CN211606531U (en) | 2020-05-12 | 2020-05-12 | Signal processing circuit and electronic equipment |
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| CN112468178A (en) * | 2020-11-27 | 2021-03-09 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching method and customer premises equipment |
| CN112583442A (en) * | 2020-12-07 | 2021-03-30 | Oppo广东移动通信有限公司 | Radio frequency system and communication device |
| CN113162639A (en) * | 2021-04-22 | 2021-07-23 | 维沃移动通信有限公司 | Radio frequency module and electronic equipment |
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