CN113489503A - Radio frequency architecture and electronic device - Google Patents
Radio frequency architecture and electronic device Download PDFInfo
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- CN113489503A CN113489503A CN202110747284.0A CN202110747284A CN113489503A CN 113489503 A CN113489503 A CN 113489503A CN 202110747284 A CN202110747284 A CN 202110747284A CN 113489503 A CN113489503 A CN 113489503A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
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Abstract
The application discloses a radio frequency architecture and electronic equipment, and particularly relates to the field of electronic circuits. The radio frequency architecture comprises a radio frequency transceiver, a radio frequency transmitting module and an antenna group; the radio frequency transceiver comprises a first signal port, a second signal port and a combined signal generating module, wherein a first input end and a second input end of the combined signal generating module are respectively connected with the first signal port and the second signal port, and an output end of the combined signal generating module is connected with the antenna group through the radio frequency transmitting module; the first signal port is used for transmitting a first radio frequency signal, and the second signal port is used for transmitting a second radio frequency signal.
Description
Technical Field
The application belongs to the field of electronic circuits, and particularly relates to a radio frequency architecture and electronic equipment.
Background
Due to the rapid development of the fifth generation mobile communication technology (5G), network evolution from 4G to 5G is required, and in this context, the 5G networking mode is divided into two modes, namely NSA and SA. The NSA is a non-independent networking mode, and by means of a current 4G core network, a 4G base station is a main station, and a 5G base station is an auxiliary station; the SA is an independent networking mode, and only 5G base stations are connected to a 5G core network.
Therefore, the existing radio frequency architecture needs to simultaneously cover the LTE 4G signal and the NR 5G signal, which results in a large number of power modules and antennas required by the existing radio frequency architecture, complex circuit, and high circuit cost.
Disclosure of Invention
The embodiment of the application aims to provide a radio frequency architecture and electronic equipment, which can solve the problem of high cost caused by fusion of existing 4G and 5G network signals.
In a first aspect, an embodiment of the present application provides a radio frequency architecture, including a radio frequency transceiver, a radio frequency transmitting module, and an antenna group;
the radio frequency transceiver comprises a first signal port, a second signal port and a combined signal generating module, wherein a first input end and a second input end of the combined signal generating module are respectively connected with the first signal port and the second signal port, and an output end of the combined signal generating module is connected with the antenna group through the radio frequency transmitting module;
the first signal port is used for transmitting a first radio frequency signal, and the second signal port is used for transmitting a second radio frequency signal.
In a second aspect, an embodiment of the present application provides an electronic device, including the radio frequency architecture described in the first aspect.
In the embodiment of the application, the internal structure of the radio frequency transceiver is recombined by setting the radio frequency architecture structure of the combined signal generation module and the radio frequency transmission module, and two signals share one radio frequency module, so that the number of the whole devices of the radio frequency architecture can be saved, and the cost is reduced.
Drawings
FIG. 1 is a block diagram of a conventional RF circuit;
fig. 2 is a schematic structural diagram of a radio frequency architecture provided in this embodiment;
fig. 3 is a schematic structural diagram of the radio frequency transceiver provided in this embodiment;
fig. 4 is a schematic structural diagram of the radio frequency transceiver provided in the present embodiment;
fig. 5 is a schematic structural diagram of a radio frequency transmission module provided in this embodiment;
fig. 6 is a schematic structural diagram of another radio frequency architecture provided in this embodiment;
fig. 7 is a schematic structural diagram of another radio frequency architecture provided in this embodiment;
fig. 8 is a schematic structural diagram of a filter assembly provided in this embodiment;
fig. 9 is a schematic structural diagram of another filtering component provided in this embodiment;
fig. 10 is a schematic structural diagram of another filter assembly provided in this embodiment;
fig. 11 is a schematic structural diagram of an electronic device provided in this embodiment.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The radio frequency architecture and the electronic device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a conventional radio frequency architecture, where two signal transmission paths are used to transmit 4G and 5G signals respectively, for example, one path is used to implement B1 signal transmission, and the other path is used to implement N1 signal transmission, and for each signal, a TX (transmit) module, an LTE TRX module corresponding to B1 signal transmission, and an NR TRX module corresponding to N1 signal transmission need to be respectively provided, that is, 1 TX module needs to be respectively provided for each signal. For example, in fig. 1, a 2 x 2MIMO antenna circuit for two-transceiver and two-transmitter needs one rf transceiver, one LTE TRX module, one NR TRX module, four antennas 1, 2, 3, 4, and two power supply modules corresponding to the LTE TRX module and the NR TRX module. When the antenna circuit is in operation, the LTE transmission signal is switched between the antenna 1 and the antenna 2, and the NR transmission signal is switched between the antenna 3 and the antenna 4. And each signal transmission path in the radio frequency transceiver needs to be provided with a filter, an orthogonal up-converter and an amplifier so as to ensure the stability of the signal sent by the radio frequency transceiver.
In order to solve the above problem, the present embodiment provides a radio frequency architecture, and referring to fig. 2, the radio frequency architecture includes a radio frequency transceiver 210, a radio frequency transmitting module 220, and an antenna group 230. The rf transceiver 210 is used to form a signal format matching the rf architecture, for example, the rf transceiver 210 may generate a carrier signal using high frequency battery oscillation, modulate the carrier signal, convert a digital signal into an analog signal, and so on. The rf transmitting module 220 is configured to process the rf signal generated by the rf transceiver 210 and then send the processed rf signal to the antenna group 230, for example, perform power amplification and filtering on the rf signal. The rf transmitting module 220 may be disposed on a circuit board, and a first signal transmission pin for connecting to an rf transceiver and a second signal transmission pin for connecting to an antenna group are disposed on the circuit board to form a signal transmission path, so as to transmit an rf signal through an antenna, so as to implement information transmission, where an integrated circuit or a chip may be disposed on the circuit board to assist the rf transmitting module in processing the signal.
In this embodiment, in order to simplify the structure of the radio frequency architecture, the internal structure of the radio frequency transceiver is improved, the radio frequency transceiver includes a first signal port, a second signal port and a combined signal generating module 211, a first input end and a second input end of the combined signal generating module 211 are respectively connected to the first signal port and the second signal port, and an output end of the combined signal generating module 211 is connected to the antenna group 230 through the radio frequency transmitting module 220; the first signal port is used for transmitting a first radio frequency signal, and the second signal port is used for transmitting a second radio frequency signal. That is, the combined signal generating module 211 inputs the first rf signal through the first input terminal, and the combined signal generating module inputs the second rf signal through the second input terminal, and then transmits the first rf signal and the second rf signal through the rf transmitting module 220.
Wherein the first radio frequency signal and the second radio frequency signal may be any one of a 4G or 5G signal. For example, the first radio frequency signal is a 4G signal, and the second radio frequency signal is a 5G signal, where the first radio frequency signal and the second radio frequency signal may be the same signal frequency band or different frequency bands of the same signal. That is, the combined signal generating module 211 covers at least one 4G signal and at least one 5G signal, and the signals covered by the at least one 4G signal and the at least one 5G signal may be signals of the same frequency band or signals of different frequency bands, for example, the signals covered by the combined signal generating module 211 are respectively a B1 signal and an N1 signal, or a B20 signal and an N28 signal. Correspondingly, the rf transmitting module 220 covers the same 4G signal and 5G signal as the rf transceiver 210.
Referring to fig. 3, the combined signal generating module 211 includes: a first digital signal processor 212, a first analog signal processor 213, a second digital signal processor 214, a second analog signal processor 215, and an adder 216. The first digital signal processor 212 is connected to the adder 216 through the first analog signal processor 213, and the second digital signal processor 214 is connected to the adder 216 through the second analog signal processor 215. Specifically, the input end of the first digital signal processor 212 is the first input end of the combined signal generating module 211, the output end of the first digital signal processor 212 is connected to the input end of the first analog signal processor 213, and the output end of the first analog signal processor 213 is connected to the first input end of the adder 216; the input end of the second digital signal processor 214 is a second input end of the combined signal generating module 211, the output end of the second digital signal processor 214 is connected with the input end of the second analog signal processor 215, and the output end of the second analog signal processor 215 is connected with a second input end of the adder 216; an output of the adder 216 is connected to an output of the combined signal generating module 211.
The first signal processor 212 and the second digital signal processor 214 are configured to perform acquisition or combination processing on the digital signals, the first analog signal processor 213 and the second analog signal processor 215 are configured to perform digital-to-analog conversion and signal modulation on the digital signals, and the adder 216 is configured to combine a plurality of analog signals.
In this embodiment, the rf transmitting module 220 is mainly used for performing power amplification and other processing on the rf signal, and therefore, the rf transmitting module may include an amplifier, a switch and other devices.
In this embodiment, the signals covered by the combined signal generating module 211 are LTE B1 signals and NR N1 signals in the same frequency range, where the first digital signal processor 212 is configured to collect or combine the B1 digital signals, and the first analog signal processor 213 is configured to perform signal modulation such as digital-to-analog conversion on the B1 digital signals, and perform processing such as denoising on the modulated B1 analog signals. The second digital signal processor 214 is configured to collect or combine the N1 digital signals, and the second analog signal processor 215 is configured to perform signal modulation such as digital-to-analog conversion on the N1 digital signals, and perform processing such as denoising on the modulated N1 analog signals. The adder 216 is used to combine the B1 analog signal and the N1 analog signal, so that the B1 analog signal and the N1 analog signal can be transmitted in the same rf circuit.
In addition, in an alternative example, in order to increase the signal stability of the combined B1+ N1 in the rf transceiver 210, a B1+ N1 analog signal processor 217 may be provided for processing the combined B1+ N1 signal to ensure the authenticity of the combined signal. The rf transceiver 210 may further include a filter, a quadrature up-converter, and an amplifier, which are used to satisfy normal signal processing of the rf transceiver, wherein the quadrature up-converter inputs the local oscillator signal.
This embodiment is through improving the inside structure of radio frequency transceiver, compares with current radio frequency circuit, can reduce the quantity of total device, reduces the cost, can also satisfy the function of launching different signals simultaneously.
Correspondingly, for better matching the improvement made inside the rf transceiver, the rf transmitting module of the present embodiment may transmit the first rf signal and the second rf signal simultaneously, for example, the rf transmitting module includes an LTE TRX module and an NR TRX module in the existing rf circuit, so that the B1 signal and the N1 signal share one rf transmitting module.
Referring to fig. 2, in this embodiment, since the B1 signal and the N1 signal share one rf transmitting module, the rf transmitting module can transmit through the same antenna, and thus, for implementing 2 × 2MIMO, this embodiment only needs 3 antennas, and can implement a 2 × 2MIMO round-robin scheme. Correspondingly, since the present implementation can implement a 2 × 2MIMO round-robin scheme through one antenna, a switch connected to the antenna, such as the DPDT switch in fig. 1, is also omitted. In addition, since the embodiment can simultaneously transmit the first radio frequency signal and the second radio frequency signal through one radio frequency transmission module, a power supply module is arranged corresponding to the radio frequency transmission module. Therefore, compared with the existing radio frequency architecture, the radio frequency architecture can be simplified and the cost can be reduced by at least omitting one power module, one antenna and one switch.
In the case that the 4G signal and the 5G signal covered by the combined signal generating module are in the same frequency band, because the interference generated by the signals in the same frequency band is relatively small, each rf transmitting module is connected to the antenna through a first switch 222. For example, in fig. 2, the rf transmission module is connected to the antenna 1 through a DPDT switch.
In this embodiment, corresponding to the radio frequency transmitting module, the radio frequency architecture of this embodiment further includes a radio frequency receiving module, where the radio frequency receiving module is connected to the antenna through the first switch and is configured to receive an external signal, for example, the LTE DRX module and the NR DRX module in fig. 2, where the LTE DRX module is connected to the antenna 1 and the antenna 2 and is configured to receive signals received by the antenna 1 and the antenna 2, and the NR DRX module is connected to the antenna 3 and is configured to receive signals received by the antenna 3.
As described above, in the radio frequency architecture provided in this embodiment, when the radio frequency transceiver 210 includes the combined signal generating module 211, the internal structure of the radio frequency transceiver is recombined, and two signals share one radio frequency module, so that the number of the whole devices of the radio frequency architecture can be reduced, and the cost can be reduced.
Because the performance of the antenna is different from that of signals in different frequency bands, in order to enable signals in each frequency band to be transmitted through the antenna with the optimal performance, the radio frequency architecture of this embodiment further includes two or more combined signal generating modules 211 and two or more radio frequency transmitting modules 220, in this embodiment, the radio frequency architecture includes 2 combined signal generating modules as an example, two combined signal generating modules 211 and two radio frequency transmitting modules 220, the two combined signal generating modules are respectively connected to corresponding radio frequency transmitting modules, that is, each combined signal generating module is connected to one radio frequency transmitting module, and each radio frequency transmitting module is connected to a different antenna. Through the structure, different signals can be transmitted through the unified antenna, and different signals can be transmitted through different antennas respectively.
Referring to fig. 4 and 5, the radio frequency transceiver includes two combined signal generating modules 211, where the two combined signal generating modules 211 are respectively connected to one radio frequency transmitting module, and the two radio frequency transmitting modules are respectively connected to a first antenna of an antenna group and a second antenna of the antenna group, where the first antenna corresponds to the antenna 1 in fig. 5, and the second antenna corresponds to the antenna 3 in fig. 5.
Referring to fig. 5, each rf transmitting module 220 is capable of outputting B1 and/or N1 signals, one rf transmitting module is connected to antenna 1 and antenna 2, and the other rf transmitting module is connected to antenna 3 and antenna 4. During transmission, if a B1+ N1 signal is output, either antenna 1 or antenna 2 or antenna 3 or antenna 4 may be selected to transmit a B1+ N1 signal. If the B1 signal and the N1 signal are output separately, then the B1 signal can be selected to be transmitted by one rf transmitting module through antenna 1 or antenna 2, and the N1 signal can be selected to be transmitted by another rf transmitting module through antenna 3 or antenna 4. It is also possible to choose the N1 signal to be transmitted at one rf transmitting module, via antenna 1 or antenna 2, and the B1 signal to be transmitted at another rf transmitting module, via antenna 3 or antenna 4.
In this embodiment, when the frequencies of the first radio frequency signal and the second radio frequency signal are close to each other and the optimal antennas corresponding to the frequencies of the first radio frequency signal and the second radio frequency signal are the same, the first radio frequency signal and the second radio frequency signal are transmitted through the optimal antennas. For example, if the transmission performance of a B1 signal with a frequency of 1920 to 1930MHz is optimal at the antenna 1, and the transmission performance of an N1 signal with a frequency of 1930 to 1960MHz is optimal at the antenna 1, at this time, the B1 and the N1 share the transmission module to transmit, that is, when the optimal antennas of the B1 signal and the N1 signal are both the antennas 1, the B1 signal NB1 signal is transmitted through the antenna 1.
And under the condition that the frequencies of the first radio-frequency signal and the second radio-frequency signal are close and the optimal antenna corresponding to each signal frequency is different, transmitting the first radio-frequency signal through the optimal antenna corresponding to the first radio-frequency signal and transmitting the second radio-frequency signal through the optimal antenna corresponding to the second radio-frequency signal. For example, when the emission performance of a B1 signal with the frequency of 1920-1930 MHz is optimal at the antenna 1, and the emission performance of an N1 signal with the frequency of 1930-1960 MHz is optimal at the antenna 3, namely the optimal antennas of a B1 signal and an N1 signal are different, the B1 and the N1 are separately emitted by the emission module, the B1 signal is emitted through the antenna 1, and the N1 signal is emitted through the antenna 3.
It should be noted that, if the B1 signal frequency of 1920 to 1930MHz is optimal in the transmission performance of the antenna 1, the transmission performance of the antenna 2 is 2 times, and the N1 frequency of 1930 to 1960MHz is optimal in the transmission performance of the antenna 2, in order to preferentially ensure the performance of the 5G signal N1, at this time, the B1 and the N1 share the transmission module to transmit, and both transmit at the antenna 2. Of course, other transmission modes are also possible, and are not specifically limited herein.
It should be noted that, in this embodiment, if the B1 signal is transmitted through the LTE TRX module, the N1 signal is transmitted through the NR TRX module, and conversely, if the N1 signal is transmitted through the LTE TRX module, the B1 signal is transmitted through the NR TRX module, so that interference can be reduced, and the transmission performance is better.
In addition, when the radio frequency architecture includes two or more combined signal generating modules and two or more radio frequency transmitting modules, the internal structure of the combined signal generating modules can be simplified, and the purpose of simplifying the internal structure can be achieved by time-division multiplexing the same components in the two combined signal generating modules.
The above is that the structure of the radio frequency architecture of the present embodiment for different signal combinations in the same frequency range can implement a common radio frequency module or separate radio frequency modules, so as to achieve more antenna combination modes, and selectively transmit according to different frequency bands relative to different antennas, so as to improve the performance of the antennas, thereby improving the user experience.
In this embodiment, when the first radio frequency signal and the second radio frequency signal are in different frequency bands, that is, when the 4G signal and the 5G signal covered by the combined signal generating module are in different frequency bands, since interference generated by the signals in the different frequency bands is relatively large, further improvement needs to be made on the radio frequency transmitting module.
Referring to fig. 6, in this embodiment, the radio frequency architecture further includes a filtering component 610 and a transmitting switch 620, where the filtering component 610 is configured to filter interference between a first radio frequency signal and a second radio frequency signal, where the first radio frequency signal and the second radio frequency signal are in different frequency bands; the output end of the radio frequency transmitting module 220 is connected to the input end of the filtering component, and the first output end and the second output end of the filtering component 610 are connected to the antenna group through the transmitting switch 620; a third output terminal and a fourth output terminal of the filtering component 610 are respectively connected to a third signal port and a fourth signal port of the radio frequency transceiver 210; a first output end and a second output end of the filtering component 610 are respectively used for transmitting a first radio frequency signal and a second radio frequency signal sent by the radio frequency transceiver; a third output terminal and a fourth output terminal of the filtering component 610 are respectively used for transmitting the first radio frequency signal and the second radio frequency signal received by the antenna group to the radio frequency transceiver.
Referring to fig. 6, the rf transceiver 210, the rf transmitting module 220, the filtering component 610, the transmitting switch 610, and the antenna group 230 are sequentially connected, wherein a first end of the filtering component 610 is configured to receive B20+ N28 signals, two second ends of the filtering component are connected to the rf transceiver for transmitting the received B20 and N28 signals to the rf transceiver, a third end of the filtering component is connected to the transmitting switch for transmitting B20 and N28 signals, and the transmitting switch is configured to select a connection line of the antenna, so that the B20+ N28 signals can be simultaneously transmitted, and the B20 and N36 28 signals can be separately transmitted.
The number of the transmission switches 620 may be one or multiple, and when the radio frequency architecture includes one transmission switch 610, both the first antenna of the antenna group and the second antenna of the antenna group are connected to the transmission switch; for example, in fig. 7, the antennas 1 and 3 are both connected to the transmission switch 620, and in this case, the transmission switch is a double-pole double-throw switch, so that different antenna loops can be selected, and compared with the radio frequency architecture in fig. 2, one switch can be reduced, thereby saving cost.
In case the radio frequency architecture comprises two transmit switches 620, one transmit switch 620 is connected to a first antenna of the antenna group and the other transmit switch is connected to a second antenna of the antenna group. Referring to fig. 6, fig. 6 is a radio frequency architecture having two transmit switches in this embodiment, each transmit switch is connected to a corresponding first switch, and in this case, the transmit switch 620 may be a single-pole single-throw switch, that is, a switch of the control circuit, and the transmit and receive of the first radio frequency signal and the second radio frequency signal are respectively controlled by 2 switches.
It should be noted that, when the radio Frequency architecture includes two signals, the operating modes thereof include Time Division Duplexing (TDD) and Frequency Division Duplexing (FDD), where TDD is: the receiving and transmitting share one radio frequency point, and the up link and the down link use different time slots for communication. FDD is that: different radio frequency points are used for communication during receiving and transmitting, and the switch structures of the radio frequency points are different for different working modes.
In this embodiment, in order to adapt to a case that communication systems of the 4G signal and the 5G signal covered by the combined signal generating module are both FDD, the filtering component in this embodiment may be a quadruplex module, referring to fig. 8, the filtering component includes a first combiner 810, a first duplexer 811 and a second duplexer 812, and a first end of the first combiner 810 is an input end of the filtering component; a second end of the first combiner 810 is connected to a first end of the first duplexer 811, a second end of the first duplexer 811 is a first output end of the filter component, and a third end of the first duplexer 811 is a third output end of the filter component; the third terminal of the first combiner 810 is connected to the first terminal of the second duplexer 812, the second terminal of the second duplexer 812 is the second output terminal of the filter component, and the third terminal of the second duplexer 812 is the fourth output terminal of the filter component.
In an alternative example, taking the first combiner to receive the B20+ N28 signal as an example, since the B20 signal and the N28 signal are both FDD signals, two duplexers may be used to perform filtering without using a switching device to stagger time, as shown in fig. 8, the third terminal of the first duplexer 811 outputs the N28PRX signal to the radio frequency transceiver, and the second terminal of the first duplexer 811 is used to output the filtered N28TX signal to the antenna group; the third terminal of the second duplexer 812 outputs the B20PRX signal to the rf transceiver, and the second terminal of the second duplexer 812 outputs the filtered B20TX signal to the antenna group.
In this embodiment, in order to adapt to the situation that the communication system of the 4G signal covered by the combined signal generating module is FDD and the communication system of the 5G signal covered by the combined signal generating module is TDD, as shown in fig. 9, the filtering component further includes a first combiner 810, a first duplexer 811, a second switch 910 and a first filter 911, and a first end of the first combiner 810 is an input end of the filtering component; a second end of the first combiner 810 is connected to a first end of the first duplexer 811, a second end of the first duplexer 811 is a first output end of the filter component, and a third end of the first duplexer 811 is a third output end of the filter component; a third terminal of the first combiner 810 is connected to a first terminal of the second switch, a second terminal of the second switch 910 is a fourth output terminal of the filtering component, and a third terminal of the second switch 910 is connected to a second output terminal of the filtering component through the first filter 911.
In an alternative example, taking the first combiner to receive the B7+ N40 signal as an example, since the B7 signal is an FDD signal and the N40 signal is a TDD signal, it is necessary to use a switch to stagger the transmission and reception processing time of the N40 signal, as shown in fig. 9, the first duplexer transmits the B7PRX signal to the radio frequency transceiver through the third terminal, and the second terminal of the first duplexer outputs the filtered B7TX signal to the antenna group; a second terminal of the second switch transmits the N40PRX signal to the rf transceiver, the second switch is connected to the first filter, and the first filter outputs a filtered N40TX signal to the antenna group.
In this embodiment, in order to adapt to a situation that the communication systems of the 4G signal and the 5G signal covered by the combined signal generating module are both time division duplex, as shown in fig. 10, the filtering component includes a first combiner 810, a third switch 913, a first filter 911, a fourth switch 1010, and a second filter 1011, and a first end of the first combiner 810 is an input end of the filtering component; a second end of the first combiner 810 is connected to a first end of a third switch 913, a second end of the third switch 913 is a third output end of the filtering component, and a third end of the third switch 913 is connected to a first output end of the filtering component through a first filter;
the third end of the first combiner 810 is connected to the first end of the fourth switch 1010, the second end of the fourth switch 1010 is the fourth output end of the filtering component, and the third end of the fourth switch 1010 is connected to the first output end of the filtering component through the second filter 1011.
In an alternative example, taking the first combiner to receive the B40+ N41 signal as an example, since the B40 and N41 signals are both TDD signals, it is necessary to stagger the receiving and transmitting processing times of B40 and N41 by using a switch, as shown in fig. 10, the first combiner is used to receive the B40+ N41 signal, the first combiner is connected to a third switch, the third switch is a single-pole double-throw switch, two contacts on the same side of the third switch are respectively used to receive the B40+ N41 signal and output a B40PRX signal, the other side of the third switch is connected to a first filter, and the first filter outputs a filtered B40 signal. And two contacts on the same side of the fourth switch are respectively used for receiving the B40+ N41 signal and outputting an N41PRX signal, the other side of the fourth switch is connected to a second filter, and the second filter outputs a filtered N41PRX signal.
In addition, when the communication system of the 4G signal and the 5G signal covered by the combined signal generating module is TDD, the filtering component may use a one-to-two filter to implement filtering, but since the one-to-two filter has no switch to control the transmitting and receiving time, when the one-to-two filter is used, the radio frequency architecture shown in fig. 6 in this embodiment with multiple transmitting switches needs to be used to implement time-sharing processing of transmitting and receiving.
In the above embodiment, the radio frequency transmitting module is modified differently according to the conditions of the 4G signal and the 5G signal in different communication systems, so that the radio frequency transmitting module is more targeted, and the compatibility of the radio frequency architecture is improved, thereby improving the performance of the radio frequency architecture.
The present embodiment also provides an electronic device, referring to fig. 11, including: a housing 1100 and a radio frequency architecture 1200, the radio frequency architecture being the radio frequency architecture described above in this embodiment, the radio frequency architecture being disposed in the housing.
The radio frequency architecture comprises: a radio frequency transceiver 210, a radio frequency transmission module 220, an antenna group 230; the radio frequency transceiver 210 includes a first signal port, a second signal port and a combined signal generating module 211, a first input end and a second input end of the combined signal generating module 211 are respectively connected to the first signal port and the second signal port, and an output end of the combined signal generating module is connected to the antenna group 230 through the radio frequency transmitting module 220; the first signal port is used for transmitting a first radio frequency signal, and the second signal port is used for transmitting a second radio frequency signal.
The combined signal generating module 211 includes: a first digital signal processor 212, a first analog signal processor 213, a second digital signal processor 214, a second analog signal processor 215, and an adder 216; the input end of the first digital signal processor is the first input end of the combined signal generation module, the output end of the first digital signal processor is connected with the input end of the first analog signal processor, and the output end of the first analog signal processor is connected with the first input end of the adder; the input end of the second digital signal processor is the second input end of the combined signal generating module, the output end of the second digital signal processor is connected with the input end of the second analog signal processor, and the output end of the second analog signal processor is connected with the second input end of the adder; the output end of the adder is connected with the output end of the combined signal generation module. The structure and function of the specific rf architecture of the rf circuit are described in the above embodiments, and are not described herein again. The radio frequency architecture in this embodiment may be disposed in a radio frequency circuit to implement the function of the radio frequency architecture.
The embodiment can reduce the structure of a radio frequency architecture under the condition of meeting the existing MIMO (multiple input multiple output), thereby reducing the cost; meanwhile, the common radio frequency module can be realized or the radio frequency modules can be separated according to the architecture of the radio frequency architecture of different signal combinations in the same frequency range, so that more antenna combination modes are achieved, selective transmission is performed according to different frequency bands relative to different antennas, and the performance of the antennas can be improved; aiming at the conditions of 4G signals and 5G signals under different communication systems with different frequencies, the radio frequency transmission module 220 is improved differently, has higher pertinence, and improves the compatibility of a radio frequency architecture, thereby improving the performance of the radio frequency architecture.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A radio frequency architecture is characterized by comprising a radio frequency transceiver, a radio frequency transmitting module and an antenna group;
the radio frequency transceiver comprises a first signal port, a second signal port and a combined signal generating module, wherein a first input end and a second input end of the combined signal generating module are respectively connected with the first signal port and the second signal port, and an output end of the combined signal generating module is connected with the antenna group through the radio frequency transmitting module;
the first signal port is used for transmitting a first radio frequency signal, and the second signal port is used for transmitting a second radio frequency signal.
2. A radio frequency architecture according to claim 1, wherein said combined signal generating module comprises: a first digital signal processor, a first analog signal processor, a second digital signal processor, a second analog signal processor and an adder;
the input end of the first digital signal processor is the first input end of the combined signal generating module, the output end of the first digital signal processor is connected with the input end of the first analog signal processor, and the output end of the first analog signal processor is connected with the first input end of the adder;
the input end of the second digital signal processor is the second input end of the combined signal generating module, the output end of the second digital signal processor is connected with the input end of the second analog signal processor, and the output end of the second analog signal processor is connected with the second input end of the adder;
and the output end of the adder is connected with the output end of the combined signal generating module.
3. A radio frequency architecture according to claim 1, wherein said radio frequency transceiver comprises two said combined signal generating modules, a first radio frequency transmitting module and a second radio frequency transmitting module are respectively connected to said two combined signal generating modules, said first radio frequency transmitting module is connected to the first antenna of said antenna group, and said second radio frequency transmitting module is connected to the second antenna of said antenna group.
4. A radio frequency architecture according to claim 3,
under the condition that the frequencies of the first radio frequency signal and the second radio frequency signal are close and the optimal antenna corresponding to each signal frequency is the same, transmitting the first radio frequency signal and the second radio frequency signal through the optimal antenna;
and under the condition that the frequencies of the first radio frequency signal and the second radio frequency signal are close and the optimal antenna corresponding to each signal frequency is different, transmitting the first radio frequency signal through the optimal antenna corresponding to the first radio frequency signal and transmitting the second radio frequency signal through the optimal antenna corresponding to the second radio frequency signal.
5. The radio frequency architecture according to claim 1, further comprising a filtering component and a transmit switch, wherein the filtering component is configured to filter interference between the first radio frequency signal and the second radio frequency signal, and wherein the first radio frequency signal and the second radio frequency signal are in different frequency bands;
the output end of the radio frequency transmitting module is connected with the input end of the filtering component, and the first output end and the second output end of the filtering component are connected to the antenna group through the transmitting switch; a third output end and a fourth output end of the filtering component are respectively connected to a third signal port and a fourth signal port of the radio frequency transceiver;
the first output end and the second output end of the filtering component are respectively used for transmitting a first radio-frequency signal and a second radio-frequency signal sent by the radio-frequency transceiver; and the third output end and the fourth output end of the filtering component are respectively used for transmitting the first radio-frequency signal and the second radio-frequency signal received by the antenna group to the radio-frequency transceiver.
6. A radio frequency architecture according to claim 5,
in the case that the radio frequency architecture includes one of the transmit switches, the transmit switch connects a first antenna of the group of antennas and a second antenna of the group of antennas;
in the case that the radio frequency architecture includes two transmit switches, one transmit switch is connected to the first antenna of the antenna group, and the other transmit switch is connected to the second antenna of the antenna group.
7. A radio frequency architecture according to claim 5, characterized in that said filtering component comprises a first combiner, a first duplexer and a second duplexer,
the first end of the first combiner is the input end of the filtering component;
a second end of the first combiner is connected with a first end of the first duplexer, the second end of the first duplexer is a first output end of the filter component, and a third end of the first duplexer is a third output end of the filter component;
the third end of the first combiner is connected to the first end of the second duplexer, the second end of the second duplexer is the second output end of the filter component, and the third end of the second duplexer is the fourth output end of the filter component.
8. A radio frequency architecture according to claim 5, wherein the filtering component further comprises a first combiner, a first duplexer, a second switch, and a first filter,
the first end of the first combiner is the input end of the filtering component;
a second end of the first combiner is connected to a first end of the first duplexer, the second end of the first duplexer is a first output end of the filter component, and a third end of the first duplexer is a third output end of the filter component;
the third end of the first combiner is connected with the first end of the transmitting switch, the second end of the second switch is the fourth output end of the filtering component, and the third end of the second switch is connected with the second output end of the filtering component through the first filter.
9. A radio frequency architecture according to claim 5, wherein the filtering component further comprises a first combiner, a third switch, a first filter, a fourth switch, and a second filter,
the first end of the first combiner is the input end of the filtering component;
a second end of the first combiner is connected to a first end of a third switch, the second end of the third switch is a third output end of the filtering component, and a third end of the third switch is connected to the first output end of the filtering component through the first filter;
the third end of the first combiner is connected to the first end of the fourth switch, the second end of the fourth switch is the fourth output end of the filtering component, and the third end of the fourth switch is connected to the first output end of the filtering component through the second filter.
10. An electronic device, comprising: the radio frequency architecture of claims 1-9.
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