CN113517904B - Radio frequency front-end circuit and electronic equipment - Google Patents
Radio frequency front-end circuit and electronic equipment Download PDFInfo
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- CN113517904B CN113517904B CN202110434562.7A CN202110434562A CN113517904B CN 113517904 B CN113517904 B CN 113517904B CN 202110434562 A CN202110434562 A CN 202110434562A CN 113517904 B CN113517904 B CN 113517904B
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- 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
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses a radio frequency front-end circuit and electronic equipment, wherein the radio frequency front-end circuit comprises a transceiver, a power amplifier, a first transmitting link, a second transmitting link and a first bus; the first transmission link is used for transmitting the low-frequency band signal transmitted by the transceiver to the power amplifier; the second transmitting link is used for transmitting the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver to the power amplifier; the first bus is used for transmitting a first control signal sent by the transceiver to the power amplifier; the invention ensures that the power amplifier is not limited when the ENDC is combined by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers, further solves the problem that the combination of the existing radio frequency front-end circuit ENDC is limited, and ensures that the power amplifier can normally and stably work.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a radio frequency front end circuit and an electronic device.
Background
With the development of 5G technology, the rf front end design of a 5G terminal is more complex than that of 4G, especially there are many combinations of endics (E-UTRA-NR Dual Connectivity: dual Connectivity of LTE and NR) in NSA (Non-standard networking) mode, the existing combination design needs to use multiple PAs (Power amplifiers) or PAMID (PA + duplex + Filter + ASM: power Amplifier module of integrated Duplexer) to implement different combinations of endics, for example, 3 PAs are needed when implementing the combination of endics at the same time, three Power amplifiers support three LTE and NR Dual Connectivity modes, i.e., LTE B3& NR N3, LTE B3& NR N7, and LTE B28& NR N2, all combinations of endics must follow a mode with two different links for signal transmission, in order to accommodate multiple combinations of endics, the Power Amplifier is required to be able to receive two different input signals, and to select one combination of endics when receiving an input signal; however, the input signals of the power amplifiers in the existing radio frequency front-end circuits are from the same transmission link, so that the ENDC combination is limited.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a radio frequency front end circuit and an electronic device, which are configured with two transmission links and an independent transmission bus, so as to ensure that a power amplifier is not limited when an endec is combined, thereby solving the problem that the existing radio frequency front end circuit endec is limited in combination.
In order to achieve the purpose, the invention adopts the following technical scheme:
a radio frequency front end circuit comprises a transceiver, a power amplifier, a first transmission link, a second transmission link and a first bus; the first transmission link is used for transmitting the low-frequency band signal transmitted by the transceiver to the power amplifier; the second transmission link is used for transmitting the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver to the power amplifier; the first bus is used for transmitting a first control signal sent by the transceiver to the power amplifier.
The radio frequency front-end circuit also comprises a first power amplifier module, a second bus and a third bus; the second bus is used for transmitting a second control signal sent by the transceiver to the first power amplifier module; the third bus is used for transmitting a third control signal sent by the transceiver to the second power amplifier module.
In the radio frequency front-end circuit, the first transmit link is further configured to transmit a high-frequency band signal sent by the transceiver to the first power amplifier module; the second transmitting link is further configured to transmit the low-frequency band signal sent by the transceiver to the second power amplifier module.
In the radio frequency front-end circuit, the power amplifier comprises a first power supply pin, a second power supply pin and a third power supply pin; an external power supply provides a first power supply for the power amplifier through a first power supply pin, or provides a second power supply for the power amplifier through a second power supply pin, or provides a third power supply for the power amplifier through a third power supply pin.
In the radio frequency front-end circuit, the first power amplifier module comprises a first antenna, a second antenna and a third antenna; the first antenna is connected with the first power amplifier module, the second antenna is connected with the second power amplifier module, and the third antenna is connected with the power amplifier.
In the radio frequency front-end circuit, the first bus is an MIPI bus.
In the radio frequency front-end circuit, the second bus and the third bus are both MIPI buses.
An electronic device comprising the radio frequency front end circuit described above.
Compared with the prior art, the radio frequency front-end circuit and the electronic equipment provided by the invention comprise a transceiver, a power amplifier, a first transmitting link, a second transmitting link and a first bus; the first transmission link is used for transmitting the low-frequency band signal transmitted by the transceiver to the power amplifier; the second transmission link is used for transmitting the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver to the power amplifier; the first bus is used for transmitting a first control signal sent by the transceiver to the power amplifier; the invention ensures that the power amplifier is not limited when the ENDC is combined by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers, further solves the problem that the combination of the existing radio frequency front-end circuit ENDC is limited, and ensures that the power amplifier can normally and stably work.
Drawings
Fig. 1 is a block diagram of a rf front-end circuit according to the present invention;
fig. 2 is a schematic diagram of a power amplifier in the rf front-end circuit according to the present invention;
fig. 3 is a schematic diagram of an rf front-end circuit provided in the present invention;
reference numerals: 100: a transceiver; 200: a power amplifier; 300: a first power amplifier module; 400: a second power amplifier module; ANT1: a first antenna; ANT2: a second antenna; ANT3: a third antenna.
Detailed Description
The invention provides a radio frequency front-end circuit and electronic equipment, which ensure that a power amplifier is not limited when an ENDC is combined by arranging two transmitting links and an independent transmission bus, and further solve the problem that the combination of the conventional radio frequency front-end circuit ENDC is limited.
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention will be further explained by the description of the embodiments with reference to the drawings.
Referring to fig. 1, a radio frequency front end circuit according to the present invention includes a transceiver 100, a power amplifier 200, a first transmission link, a second transmission link, and a first bus; the transceiver 100 is electrically connected to the power amplifier 200; wherein the first transmission link is used for transmitting the low-frequency band signal transmitted by the transceiver 100 to the power amplifier 200; the second transmission link is configured to transmit the middle-band signal and the high-band signal transmitted by the transceiver 100 to the power amplifier 200; the first bus is used for transmitting a first control signal sent by the transceiver 100 to the power amplifier 200; the invention ensures that the power amplifier 200 is not limited during the ENDC combination by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers 200, and further solves the problem that the existing radio frequency front end circuit ENDC combination is limited.
Specifically, when the rf front-end circuit participates in signal transmission, if a low-frequency band signal needs to be transmitted, the transceiver 100 sends the low-frequency band signal to the power amplifier 200 through the first transmission link, and the power amplifier 200 amplifies the low-frequency band signal and then outputs the amplified low-frequency band signal, so as to transmit the low-frequency band signal subsequently; if the intermediate frequency band signal and the high frequency band signal need to be transmitted, the transceiver 100 transmits the intermediate frequency band signal and the high frequency band signal to the power amplifier 200 through the second link, and the power amplifier 200 amplifies and outputs the intermediate frequency signal and the high frequency signal, so as to transmit the intermediate frequency signal and the high frequency signal in sequence, thereby enabling the power amplifier 200 to alternately operate in the first transmission link and the second transmission link. In this embodiment, the power amplifier 200 is an MMPA (Multimode multifrequency PA: multimode multifrequency power amplifier 200); the operation of the power amplifier 200 is controlled by the transceiver 100, that is, the transceiver 100 outputs a related control signal to control the operation of the power amplifier 200, so as to ensure that the power amplifier 200 can operate normally and stably. In order to avoid that the transmission bus of other power amplifiers 200 is not occupied when the power amplifier 200 performs the enic combining, in the present invention, a transmission bus, i.e., the first bus, is independently arranged between the power amplifier 200 and the transceiver 100, the transceiver 100 transmits a first control signal to the power amplifier 200 through the first bus, the first control signal is a related control instruction required by the operation of the power amplifier 200, and by separately arranging a transmission bus for the power amplifier 200, a collision between the power amplifier 200 and the transmission buses of other power amplifiers during the enic combining can be effectively avoided; the invention ensures that the power amplifier 200 is not limited when the ENDC is combined by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers, and further solves the problem that the combination of the existing radio frequency front-end circuit ENDC is limited.
Further, the rf front-end circuit further includes a first power amplifier module 300, a second bus and a third bus, where the first power amplifier module 300 and the second power amplifier module 300 are respectively connected to the transceiver 100, and in this embodiment, the power amplifier 200, the first power amplifier module 300 and the second power amplifier module 300 are respectively electrically connected to the transceiver 100. In this embodiment, the first power amplifier module 300 and the second power amplifier module 300 both include PAMID (PA + Duplexer + Filter + ASM: power amplifier module of integrated Duplexer), and it is noted that the first power amplifier module 300 is PAMID1, and the second power amplifier module 300 is PAMID2; the power amplifier 200, the first power amplifier module 300 and the second power amplifier module 300 are combined with each other to realize an ENDC mode; the second bus is configured to transmit a second control signal sent by the transceiver 100 to the first power amplifier module 300; the third bus is configured to transmit a third control signal sent by the transceiver 100 to the second power amplifier module 300; the first power amplifier module 300, the second power amplifier module 300 and the power amplifier 200 respectively have one bus to be connected with the transceiver 100, and when the endec mode is realized, the transceiver 100 can transmit control signals to the first power amplifier module 300, the second power amplifier module 300 and the power amplifier 200 through the respective buses, so that the power amplifier modules and the power amplifier 200 can work normally.
The operation of the power amplifier 200, the first power amplifier module 300 and the second power amplifier module 300 is controlled by the transceiver 100, and when the transceiver 100 needs to control the operation of the first power amplifier module 300, the transceiver 100 transmits a second control signal to the first power amplifier module 300 through the second bus to control the first power amplifier module 300 to enter a corresponding operating state; when the transceiver 100 needs to control the second power amplifier module 300 to operate, the transceiver 100 transmits a third control signal to the second power amplifier module 300 through the third bus, and controls the second power amplifier module 300 to perform a corresponding operating state; when the transceiver 100 needs to control the power amplifier 200 to operate, the transceiver 100 transmits a first control signal to the power amplifier 200 through the first bus, and by setting three independent buses, no matter which power amplifier 200 is combined with which power amplifier to realize the endec mode, the power amplifier 200 does not share a bus with another power amplifier, thereby effectively avoiding the collision between the power amplifier 200 and the transmission buses of other power amplifiers 200 when the power amplifier 200 is used in the endec mode; the invention ensures that the power amplifier 200 is not limited during the ENDC combination by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers 200, further solves the problem that the existing radio frequency front end circuit ENDC combination is limited, and ensures that the power amplifier 200 can normally and stably work.
Further, the first transmit link is further configured to transmit the high-frequency band signal sent by the transceiver 100 to the first power amplifier module 300; the second transmitting link is further configured to transmit the low-frequency band signal sent by the transceiver 100 to the second power amplifier module 300; when the rf front-end circuit participates in signal transmission, and the transceiver 100 transmits a signal to the first power amplifier module 300, the first transmit link transmits the high-frequency band signal to the first power amplifier module 300, and then the first power amplifier module 300 amplifies and outputs the high-frequency band signal for subsequent transmission; when the transceiver 100 transmits a signal to the second power amplifier module 300, the second transmit link transmits a low-frequency signal to the second power amplifier module 300, and then the second power amplifier module 300 amplifies and outputs the low-frequency signal, so as to perform subsequent transmission, thereby selecting different transmit links to transmit according to signals of different frequency bands, and avoiding that input signals of the power amplifier modules come from the same transmit link.
Further, referring to fig. 2, the power amplifier 200 includes a first power supply pin, a second power supply pin, and a third power supply pin, where the first power supply pin is VCC1, the second power supply pin is VCC2, and the third power supply pin is VCC2_2; an external power supply provides a first power supply for the power amplifier 200 through a first power supply pin, or provides a second power supply for the power amplifier 200 through a second power supply pin, or provides a third power supply for the power amplifier 200 through a third power supply pin, where the model of the power amplifier 200 in this embodiment is QM56030; accordingly, the first power amplifier module 300 is externally provided with a third power supply, and the second power amplifier module 300 is externally provided with a second power supply; when the power amplifier 200 and the first power amplifier module 300 are used in combination to implement the endec mode, at this time, the first power amplifier module 300 is powered by an external power supply, and then the power amplifier 200 receives a first power supply provided by the external through a first power supply pin or receives a second power supply provided by the external through a second power supply pin, where the third power supply pin does not participate in the operation; when the power amplifier 200 and the second power amplifier module 300 are used in combination to implement the endec mode, at this time, the second power amplifier module 300 provides a second power source from the outside, and at this time, the power amplifier 200 receives the first power source provided from the outside through the first power supply pin or receives a third power source provided from the outside through the third power supply pin, and the second power supply pin does not participate in the operation. The first power supply supplies power to the first stage, can supply power to all the power amplifiers 200, and is low in power consumption; the second power supply supplies power to the last-stage power amplifier 200 with medium bandwidth and high bandwidth, and the power consumption is large; the third power supply supplies power to the last-stage power amplifier 200 with low bandwidth, and the power consumption is large; therefore, different power supplies are adopted for different power amplifiers 200 to supply power, so that power consumption can be effectively improved, and the power amplifiers 200 can select required power supplies in different ENDC modes so as to realize different ENDC modes.
When the power amplifier 200 and the first power amplifier module 300 are used in combination to implement the endec mode, at this time, the transceiver 100 transmits a first control signal to the power amplifier 200 through a first bus to control the normal operation of the power amplifier 200, and a second control signal of the first power amplifier module 300 is transmitted by the transceiver 100 through a second bus to control the normal operation of the first power amplifier module 300; in this embodiment, the power amplifier 200 participates in processing of 4G signals, and the first power amplifier module 300 participates in processing of 5G signals; the first power amplifier module 300 receives the high frequency band signal transmitted by the transceiver 100 through a first transmission link, and then the first power amplifier module 300 amplifies the high frequency band signal and outputs the amplified high frequency band signal; the power amplifier 200 receives the low-frequency band signal transmitted by the transceiver 100 through the first transmission link, or receives the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver 100 through the second transmission link, the power amplifier 200 amplifies and outputs the low-frequency band signal received through the first transmission link, and amplifies and outputs the middle-frequency band signal and the high-frequency band signal received through the second transmission link, so as to realize signal transmission subsequently.
When the power amplifier 200 and the second power amplifier module 300 are used in combination to implement the endec mode, at this time, the transceiver 100 transmits a first control signal to the power amplifier 200 through a first bus to control the normal operation of the power amplifier 200, and a third control signal of the second power amplifier module 300 is transmitted by the transceiver 100 through a third bus to control the normal operation of the second power amplifier module 300; in this embodiment, the power amplifier 200 participates in processing of 4G signals, and the second power amplifier module 300 participates in processing of 5G signals; the second power amplifier module 300 receives the low-frequency band signal transmitted by the transceiver 100 through a second transmission link, and then the second power amplifier module 300 amplifies the low-frequency band signal and outputs the amplified low-frequency band signal; the power amplifier 200 receives the low-frequency band signal transmitted by the transceiver 100 through the first transmission link, or receives the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver 100 through the second transmission link, the power amplifier 200 amplifies and outputs the low-frequency band signal received through the first transmission link, and amplifies and outputs the middle-frequency band signal and the high-frequency band signal received through the second transmission link, so as to realize signal transmission subsequently.
When the first power amplifier module 300 and the second power amplifier module 300 are used in combination to realize the endec mode, at this time, the transceiver 100 transmits a second control signal to the first power amplifier module 300 through a second bus to control the normal operation of the first power amplifier module 300, and a third control signal of the second power amplifier module 300 is transmitted by the transceiver 100 through the third bus to control the normal operation of the second power amplifier module 300; in this embodiment, the first power amplifier module 300 may participate in processing of both 4G signals and 5G signals, and similarly, the second power amplifier module 300 may participate in processing of both 5G signals and 4G signals, when the first power amplifier module 300 participates in processing of 4G signals, the second power amplifier module 300 participates in processing of 5G signals, and when the first power amplifier module 300 participates in processing of 5G signals, the second power amplifier module 300 participates in processing of 4G signals, thereby implementing the endec mode; the second power amplifier module 300 receives the low-frequency band signal transmitted by the transceiver 100 through a second transmission link, and then the second power amplifier module 300 amplifies the low-frequency band signal and outputs the amplified low-frequency band signal; the first power amplifier module 300 receives the low-frequency band signal transmitted by the transceiver 100 through the first transmission link, and the first power amplifier module 300 amplifies the low-frequency band signal received through the first transmission link and outputs the amplified low-frequency band signal, so as to realize signal transmission subsequently.
Further, referring to fig. 3, the first power amplifier module 300 includes a first antenna ANT1, a second antenna ANT2, and a third antenna ANT3; the first antenna ANT1 is connected with the first power amplifier module 300, the second antenna ANT2 is connected with the second power amplifier module 300, and the third antenna ANT3 is connected with the power amplifier 200; the transceiver 100, the first power amplifier module 300 and the first antenna ANT1 form a transceiver path, the transceiver 100, the power amplifier 200 and the third antenna ANT3 form a transceiver path, and the transceiver 100, the second power amplifier module 300 and the second antenna ANT2 form a transceiver path.
In specific implementation, when the power amplifier 200 and the first power amplifier module 300 are used in combination to implement the endec mode, at this time, the transceiver 100 transmits a first control signal to the power amplifier 200 through a first bus to control the normal operation of the power amplifier 200, and a second control signal of the first power amplifier module 300 is transmitted by the transceiver 100 through a second bus to control the normal operation of the first power amplifier module 300; in this embodiment, the power amplifier 200 participates in processing of 4G signals, and the first power amplifier module 300 participates in processing of 5G signals; the first power amplifier module 300 receives the high frequency band signal transmitted by the transceiver 100 through a first transmission link, where TX0 corresponds to a first transmission link and TX1 corresponds to a second transmission link; then, the first power amplifier module 300 amplifies the high-frequency band signal and outputs the amplified high-frequency band signal to the first antenna ANT1, and the first antenna ANT1 emits the amplified high-frequency band signal; the power amplifier 200 receives the low-frequency band signal transmitted by the transceiver 100 through the first transmission link, and also receives the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver 100 through the second transmission link, the power amplifier 200 amplifies the low-frequency band signal received through the first transmission link and outputs the amplified low-frequency band signal to the third antenna ANT3, and amplifies the middle-frequency band signal and the high-frequency band signal received through the second transmission link and outputs the amplified signals to the third antenna ANT3, and the third antenna ANT3 transmits the amplified signals, so that subsequent communication is realized.
When the power amplifier 200 and the second power amplifier module 300 are used in combination to implement the endec mode, at this time, the transceiver 100 transmits a first control signal to the power amplifier 200 through a first bus to control the normal operation of the power amplifier 200, and a third control signal of the second power amplifier module 300 is transmitted by the transceiver 100 through a third bus to control the normal operation of the second power amplifier module 300; in this embodiment, the power amplifier 200 participates in processing of 4G signals, and the second power amplifier module 300 participates in processing of 5G signals; the second power amplifier module 300 receives the low-frequency band signal transmitted by the transceiver 100 through a second transmission link, then the second power amplifier module 300 amplifies the low-frequency band signal and outputs the amplified low-frequency band signal to a second antenna ANT2, and the second antenna ANT2 transmits the amplified signal; the power amplifier 200 receives the low-frequency band signal transmitted by the transceiver 100 through the first transmission link, and also receives the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver 100 through the second transmission link, the power amplifier 200 amplifies the low-frequency band signal received through the first transmission link and outputs the amplified low-frequency band signal to the third antenna ANT3, and amplifies the middle-frequency band signal and the high-frequency band signal received through the second transmission link and outputs the amplified signals to the third antenna ANT3, and the third antenna ANT3 transmits the amplified signals, so that subsequent communication is realized.
When the first power amplifier module 300 and the second power amplifier module 300 are used in combination to realize the ENDC mode, at this time, the transceiver 100 transmits a second control signal to the first power amplifier module 300 through a second bus to control the first power amplifier module 300 to normally operate, and a third control signal of the second power amplifier module 300 is transmitted by the transceiver 100 through the third bus to control the second power amplifier module 300 to normally operate; in this embodiment, the first power amplifier module 300 may participate in processing of both 4G signals and 5G signals, and similarly, the second power amplifier module 300 may participate in processing of both 5G signals and 4G signals, when the first power amplifier module 300 participates in processing of 4G signals, the second power amplifier module 300 participates in processing of 5G signals, and when the first power amplifier module 300 participates in processing of 5G signals, the second power amplifier module 300 participates in processing of 4G signals, thereby implementing the endec mode; the second power amplifier module 300 receives the low-frequency band signal transmitted by the transceiver 100 through a second transmission link, then the second power amplifier module 300 amplifies the low-frequency band signal and outputs the amplified low-frequency band signal to a second antenna ANT2, and the second antenna ANT2 transmits the amplified signal; the first power amplifier module 300 receives the low-frequency band signal transmitted by the transceiver 100 through the first transmitting link, the first power amplifier module 300 amplifies the low-frequency band signal received through the first transmitting link and outputs the amplified low-frequency band signal to the first antenna ANT1, and the first antenna ANT1 transmits the amplified low-frequency band signal, so that subsequent communication is realized.
Further, the first bus is a MIPI bus and is denoted as MIPI1, and the operation of the power amplifier 200 is controlled by the transceiver 100, that is, the transceiver 100 outputs a related control signal to control the operation of the power amplifier 200, so as to ensure that the power amplifier 200 can normally and stably operate. In order to avoid that the transmission bus of other power amplifiers 200 is not occupied when the power amplifier 200 performs the endec combination, in the present invention, a transmission bus MIPI1 is independently arranged between the power amplifier 200 and the transceiver 100, so that the transceiver 100 transmits a first control signal to the power amplifier 200 through the MIPI1, the first control signal is a related control instruction required by the operation of the power amplifier 200, and by separately setting a transmission bus for the power amplifier 200, the power amplifier 200 can effectively avoid that the transmission bus of other power amplifiers 200 collides when performing the endec combination; the invention ensures that the power amplifier 200 is not limited during the ENDC combination by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers 200, and further solves the problem that the existing radio frequency front end circuit ENDC combination is limited.
Further, the second bus and the third bus are both MIPI buses, the second bus is marked as MIPI2, and the third bus is marked as MIPI3; when the transceiver 100 needs to control the first power amplifier module 300 to work, the transceiver 100 transmits a second control signal to the first power amplifier module 300 through MIPI2, so as to control the first power amplifier module 300 to enter a corresponding working state; when the transceiver 100 needs to control the second power amplifier module 300 to operate, the transceiver 100 transmits a third control signal to the second power amplifier module 300 through the MIPI3, so as to control the second power amplifier module 300 to perform a corresponding operating state.
Further, the present invention also provides an electronic device, where the electronic device includes the foregoing radio frequency front-end circuit, and the radio frequency front-end circuit includes a transceiver, a power amplifier, a first transmission link, a second transmission link, and a first bus; the transceiver is electrically connected with the power amplifier; the first transmission link is used for transmitting the low-frequency band signals transmitted by the transceiver to the power amplifier; the second transmission link is used for transmitting the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver to the power amplifier; the first bus is used for transmitting a first control signal sent by the transceiver to the power amplifier; the invention ensures that the power amplifier is not limited when the ENDC is combined by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers, and further solves the problem that the combination of the existing radio frequency front-end circuit ENDC is limited; since the rf front-end circuit is described in detail above, it is not described herein again.
In summary, the radio frequency front end circuit and the electronic device provided by the present invention include a transceiver, a power amplifier, a first transmission link, a second transmission link, and a first bus; the first transmission link is used for transmitting the low-frequency band signal transmitted by the transceiver to the power amplifier; the second transmission link is used for transmitting the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver to the power amplifier; the first bus is used for transmitting a first control signal sent by the transceiver to the power amplifier; the invention ensures that the power amplifier is not limited when the ENDC is combined by arranging two transmitting links and an independent transmission bus, can realize any combination with other power amplifiers, further solves the problem that the combination of the existing radio frequency front-end circuit ENDC is limited, and ensures that the power amplifier can normally and stably work.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (6)
1. A radio frequency front end circuit comprising a transceiver, a power amplifier, a first transmit link, a second transmit link, and a first bus; the first transmission link is used for transmitting the low-frequency band signal transmitted by the transceiver to the power amplifier; the second transmission link is used for transmitting the middle-frequency band signal and the high-frequency band signal transmitted by the transceiver to the power amplifier; the first bus is used for transmitting a first control signal sent by the transceiver to the power amplifier;
wherein the first bus is a transmission bus independently provided between the power amplifier and the transceiver;
the radio frequency front-end circuit further comprises a first power amplifier module, a second bus and a third bus; the second bus is used for transmitting a second control signal sent by the transceiver to the first power amplifier module; the third bus is used for transmitting a third control signal sent by the transceiver to the second power amplifier module;
the power amplifier comprises a first power supply pin, a second power supply pin and a third power supply pin; providing a first power supply for the power amplifier through a first power supply pin by an external power supply, or providing a second power supply for the power amplifier through a second power supply pin, or providing a third power supply for the power amplifier through a third power supply pin; the first power amplifier module is provided with a third power supply by an external power supply, and the second power amplifier module is provided with a second power supply by the external power supply; the first power supply supplies power to the first stage and can supply power to all the power amplifiers; the second power supply supplies power to the last stage of power amplifier with medium bandwidth and high bandwidth; the third power supply supplies power to the low-bandwidth last stage power amplifier.
2. The rf front-end circuit according to claim 1, wherein the first transmit chain is further configured to transmit the high-band signal transmitted by the transceiver to the first power amplifier module; the second transmitting link is further configured to transmit the low-frequency band signal sent by the transceiver to the second power amplifier module.
3. The rf front-end circuit of claim 1, wherein the first power amplifier module comprises a first antenna, a second antenna, and a third antenna; the first antenna is connected with the first power amplifier module, the second antenna is connected with the second power amplifier module, and the third antenna is connected with the power amplifier.
4. The rf front-end circuit of claim 1, wherein the first bus is a MIPI bus.
5. The radio frequency front-end circuit of claim 1, wherein the second bus and the third bus are both MIPI buses.
6. An electronic device comprising the radio frequency front end circuit of any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110434562.7A CN113517904B (en) | 2021-04-22 | 2021-04-22 | Radio frequency front-end circuit and electronic equipment |
| PCT/CN2022/079145 WO2022222613A1 (en) | 2021-04-22 | 2022-03-03 | Radio frequency front-end circuit and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110434562.7A CN113517904B (en) | 2021-04-22 | 2021-04-22 | Radio frequency front-end circuit and electronic equipment |
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| CN113517904B true CN113517904B (en) | 2023-03-24 |
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| CN111491397A (en) * | 2020-03-19 | 2020-08-04 | 华为技术有限公司 | Communication method and device |
| CN111600616A (en) * | 2020-07-10 | 2020-08-28 | 锐石创芯（深圳）科技有限公司 | Radio frequency front end architecture, antenna device and communication terminal |
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| US8183917B2 (en) * | 2010-06-04 | 2012-05-22 | Quantance, Inc. | RF power amplifier circuit with mismatch tolerance |
| DE102015103807A1 (en) * | 2015-03-16 | 2016-09-22 | Intel IP Corporation | An apparatus and method for controlling the generation of a radio frequency transmit signal |
| CN108494443B (en) * | 2018-03-06 | 2019-12-17 | 维沃移动通信有限公司 | Signal transmission method and device |
| JP2021010063A (en) * | 2019-06-28 | 2021-01-28 | 株式会社村田製作所 | High frequency circuit and communication device |
| KR20210006766A (en) * | 2019-07-09 | 2021-01-19 | 삼성전자주식회사 | Electronic device for providing dual connectivity and method for controlling power thereof |
| CN110912576B (en) * | 2019-11-22 | 2022-05-13 | 维沃移动通信有限公司 | Radio frequency structure and communication terminal |
| CN111130592A (en) * | 2019-12-17 | 2020-05-08 | 锐石创芯(重庆)科技有限公司 | Radio frequency front end module supporting LTE/NR dual connectivity for 5G non-independent networking |
| CN113676194B (en) * | 2019-12-17 | 2023-05-12 | 锐石创芯(重庆)科技有限公司 | Radio frequency front-end module supporting LTE/NR dual connection and mobile terminal |
| CN111294214B (en) * | 2020-01-21 | 2021-09-14 | Oppo广东移动通信有限公司 | Power supply method and related product |
| CN211266879U (en) * | 2020-02-27 | 2020-08-14 | 深圳市泰衡诺科技有限公司 | Radio frequency module and mobile terminal for 4G/5G standard |
| CN111769851B (en) * | 2020-06-28 | 2022-04-19 | 深圳市锐尔觅移动通信有限公司 | Radio frequency device and mobile terminal |
| CN112448734A (en) * | 2020-10-14 | 2021-03-05 | 深圳市锐尔觅移动通信有限公司 | Radio frequency module, terminal equipment and signal transmitting method |
| CN113517904B (en) * | 2021-04-22 | 2023-03-24 | 惠州Tcl云创科技有限公司 | Radio frequency front-end circuit and electronic equipment |
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| CN111491397A (en) * | 2020-03-19 | 2020-08-04 | 华为技术有限公司 | Communication method and device |
| CN111600616A (en) * | 2020-07-10 | 2020-08-28 | 锐石创芯（深圳）科技有限公司 | Radio frequency front end architecture, antenna device and communication terminal |
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