CN106685468B - Radio frequency circuit, terminal and radio frequency circuit control method - Google Patents
Radio frequency circuit, terminal and radio frequency circuit control method Download PDFInfo
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- CN106685468B CN106685468B CN201710019572.8A CN201710019572A CN106685468B CN 106685468 B CN106685468 B CN 106685468B CN 201710019572 A CN201710019572 A CN 201710019572A CN 106685468 B CN106685468 B CN 106685468B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002776 aggregation Effects 0.000 claims abstract description 66
- 238000004220 aggregation Methods 0.000 claims abstract description 66
- 238000004891 communication Methods 0.000 claims abstract description 64
- 238000005516 engineering process Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 6
- 239000000969 carrier Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
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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
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
Abstract
The embodiment of the invention discloses a radio frequency circuit, a terminal and a radio frequency circuit control method. The radio frequency circuit comprises a radio frequency transceiving module, a control module, a first antenna and a second antenna; the radio frequency transceiving module is electrically connected with the first antenna and the second antenna through the control module respectively; the control module is used for transmitting a first frequency band signal received by the first antenna to the radio frequency transceiver module and transmitting a second frequency band signal received by the second antenna to the radio frequency transceiver module in a carrier aggregation communication mode; and the control module is used for transmitting the second frequency band signal received by the first antenna to the radio frequency transceiving module in the non-carrier aggregation communication mode. According to the scheme, the first frequency band signal and the second frequency band signal are respectively transmitted by adopting the corresponding antennas in the carrier aggregation communication mode and the non-carrier aggregation communication mode, so that the performance of the radio frequency circuit is improved.
Description
Technical Field
The invention relates to the technical field of terminals, in particular to a radio frequency circuit, a terminal and a radio frequency circuit control method.
Background
To meet The requirements of The 4 th Generation mobile communication technology, The 3GPP (The 3rd Generation Partnership Project) organization has launched The subsequent evolution Project LTE-Advanced (LTE-a).
In the evolution process from LTE (long Term evolution) to LTE-a system, the requirement of wider spectrum will become one of the most important factors affecting the evolution. Therefore, 3GPP organizations have proposed using Carrier Aggregation (CA) technology to address the demand of LTE-a systems for frequency band resources. CA technology can aggregate multiple carriers into a wider spectrum, and also can aggregate discontinuous spectrum fragments together to increase the system transmission bandwidth. The method meets the requirements of frequency spectrum compatibility of LTE and LTE-A systems, and can utilize the existing LTE equipment and frequency spectrum resources to the maximum extent.
However, carrier aggregation between the carrier frequency band of the high frequency band and the carrier frequency band of the medium and low frequency tends to cause poor performance of the radio frequency circuit under the single LTE condition.
Disclosure of Invention
The embodiment of the invention provides a radio frequency circuit, a terminal and a radio frequency circuit control method, which can improve the performance of the radio frequency circuit.
an embodiment of the present invention provides a radio frequency circuit, including: the antenna comprises a radio frequency transceiving module, a control module, a first antenna and a second antenna;
the radio frequency transceiver module is electrically connected with the first antenna and the second antenna through the control module respectively;
the control module is configured to transmit a first frequency band signal received by the first antenna to the radio frequency transceiver module and transmit a second frequency band signal received by the second antenna to the radio frequency transceiver module in a carrier aggregation communication mode;
the control module is configured to transmit the second frequency band signal received by the first antenna to the radio frequency transceiver module in a non-carrier aggregation communication mode.
The embodiment of the invention also provides a terminal, which comprises a radio frequency circuit and a processor;
The radio frequency circuit is electrically connected with the processor;
the processor is used for processing the data in the terminal;
The radio frequency circuit is the radio frequency circuit described in the embodiment of the invention.
The embodiment of the invention also comprises a radio frequency circuit control method, which comprises the following steps:
Acquiring a communication mode of a terminal;
When the communication mode is judged to be the carrier aggregation communication mode, transmitting a first frequency band signal received by a first antenna to a radio frequency transceiver module, and transmitting a second frequency band signal received by a second antenna to the radio frequency transceiver module;
And when the communication mode is judged not to be the carrier aggregation communication mode, sending the second frequency band signal received by the first antenna to the radio frequency transceiver module.
The radio frequency circuit comprises a radio frequency transceiving module, a control module, a first antenna and a second antenna; the radio frequency transceiving module is electrically connected with the first antenna and the second antenna through the control module respectively; the control module is used for transmitting a first frequency band signal received by the first antenna to the radio frequency transceiver module and transmitting a second frequency band signal received by the second antenna to the radio frequency transceiver module in a carrier aggregation communication mode; and the control module is used for transmitting the second frequency band signal received by the first antenna to the radio frequency transceiving module in the non-carrier aggregation communication mode. According to the scheme, the first frequency band signal and the second frequency band signal are respectively transmitted by adopting the corresponding antennas in the carrier aggregation communication mode and the non-carrier aggregation communication mode, so that the performance of the radio frequency circuit is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first structural diagram of a radio frequency circuit according to a preferred embodiment of the invention.
fig. 2 is a second structural diagram of the rf circuit according to the preferred embodiment of the invention.
fig. 3 is a third structural diagram of the rf circuit according to the preferred embodiment of the invention.
fig. 4 is a fourth structural diagram of the rf circuit according to the preferred embodiment of the invention.
fig. 5 is a fifth structural diagram of the rf circuit according to the preferred embodiment of the invention.
Fig. 6 is a sixth structural diagram of the rf circuit according to the preferred embodiment of the invention.
Fig. 7 is a seventh structural diagram of the rf circuit according to the preferred embodiment of the invention.
Fig. 8 is a schematic structural diagram of a terminal according to a preferred embodiment of the present invention.
Fig. 9 is a flowchart of a radio frequency circuit control method according to a preferred embodiment of the present invention.
Fig. 10 is a schematic view of a carrier aggregation scenario in the preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
the terms "first", "second", "third" and "fourth", etc. in the present invention are used for distinguishing different objects, not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the invention provides a radio frequency circuit, a terminal and a radio frequency circuit control method. The details will be described below separately.
referring to fig. 1, fig. 1 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present invention. The radio frequency circuit 1 may be applied to terminal products such as a mobile phone, a tablet computer, and a wearable device, and is not limited herein.
the radio frequency circuit 1 includes a radio frequency transceiver module 11, a control module 12, a first antenna 13 and a second antenna 14. The rf transceiver module 11 is electrically connected to the first antenna 13 and the second antenna 14 through the control module 12.
the control module 12 is configured to transmit the first frequency band signal received by the first antenna 13 to the radio frequency transceiver module 11 and transmit the second frequency band signal received by the second antenna 14 to the radio frequency transceiver module 11 in the carrier aggregation communication mode.
and the control module 12 is configured to transmit the second frequency band signal received by the first antenna 13 to the radio frequency transceiver module 11 in the non-carrier aggregation communication mode.
In the preferred embodiment, the rf transceiver module 11 may be an rf transceiver chip. The first frequency Band signal is a radio frequency signal whose frequency Band falls into a first preset frequency, and includes a radio frequency signal of a low and medium frequency Band and a part of radio frequency signals of a high frequency Band, such as radio frequency signals of frequency bands of Band1, Band 3, Band 38, Band40, Band 41, and the like. The second frequency Band signal is a radio frequency signal whose frequency Band falls into a second preset frequency, and includes a part of high frequency radio frequency signals, such as Band 7.
Since the spectrum allocated by the operator is not continuous, in order to obtain wider bandwidth, fragmented LTE bands need to be combined into a virtual wider band, i.e. carriers of multiple bands need to be aggregated together, so as to obtain more resources. The carrier aggregation technology has a high requirement on signals, so that carrier aggregation is performed when the signals are good, namely, the signals are in a carrier aggregation communication mode; and when the signal is poor, the carrier aggregation is not carried out, namely, the communication mode of non-carrier aggregation is adopted. In summary, the control module 12 will control the first antenna 13 and the second antenna 14 to receive the first frequency band signal and the second frequency band signal according to whether the carrier aggregation communication mode is in use.
Wherein the performance of the first antenna 13 is better than the performance of the second antenna 14. In some embodiments, when in the carrier aggregation communication mode, the first antenna 13 receives an external first frequency band signal, and the second antenna 14 receives an external second frequency band signal, so as to implement a carrier aggregation function. In this preferred embodiment, the second frequency band corresponding to the second frequency band signal may be used as the primary component carrier or the secondary component carrier.
In some embodiments, when in the non-carrier aggregation communication mode, the external second frequency band signal is received through the first antenna 13, so that the performance of the second frequency band signal under the single LTE condition can be ensured.
The radio frequency circuit of the present invention will be further described below.
in some embodiments, the control module 12 includes a first control submodule 121 and a second control submodule 122, as shown in FIG. 2. The radio frequency transceiver module 11 is electrically connected to the first antenna 13 through the first control sub-module 121, and the second control sub-module 122 is electrically connected to the radio frequency transceiver module 11, the first control sub-module 121, and the second antenna 14, respectively.
Next, the control modes of the first control sub-module 121 and the second control sub-module 122 in the carrier aggregation communication mode and the non-carrier aggregation communication mode will be described.
In the carrier aggregation communication mode, the first control sub-module 121 transmits the first frequency band signal received by the first antenna 13 to the radio frequency transceiver module 11. The second control sub-module 122 transmits the second frequency band signal received by the second antenna 14 to the rf transceiver module 11.
In the non-carrier aggregation communication mode, the first control sub-module 121 and the second control sub-module 122 jointly transmit the second frequency band signal received by the first antenna 13 to the radio frequency transceiver module 11.
Referring to fig. 3, fig. 3 is a schematic structural diagram of another radio frequency circuit according to an embodiment of the present invention. In some embodiments, the first control submodule 121 includes a first switch 1211. The first switch 1211 includes a first common terminal 1211a, a first gate terminal 1211b and a second gate terminal 1211 c. In the preferred embodiment, the first switch 1211 is a single pole double throw switch.
The first common terminal 1211a is connected to the first antenna 13, the first gating terminal 1211b is connected to the rf transceiver module 11, and the second gating terminal 1211c is connected to the third gating terminal 1221 b.
The second control sub-module 122 includes a second switch 1221. The second switch 1221 includes a second common terminal 1221a, a third gate terminal 1221b, and a fourth gate terminal 1221 c. In the preferred embodiment, the second switch 1221 is a single pole double throw switch.
The second common terminal 1221a is connected to the rf transceiver module 11, and the fourth gating terminal 1221c is connected to the second antenna 14.
Next, the conduction modes of the first switch 1211 and the second switch 1221 in the carrier aggregation communication mode and the non-carrier aggregation communication mode, respectively, will be described.
In the carrier aggregation communication mode, the first switch 1211 communicates the first common terminal 1211a with the first gating terminal 1211b to transmit the first frequency band signal received by the first antenna 13 to the rf transceiver module 11; the second switch 1221 connects the second common terminal 1221a with the fourth gating terminal 1221c, so as to transmit the second frequency band signal received by the second antenna 14 to the rf transceiver module 12.
In the non-carrier aggregation communication mode, the first switch 1211 connects the first common terminal 1211a to the second gating terminal 1211c, the second switch 1221 connects the second common terminal 1221a to the third gating terminal 1221b, and the first and second common terminals are matched with each other to form a path, so as to transmit the second frequency band signal received by the first antenna 13 to the radio frequency transceiver module 11.
In some embodiments, the rf transceiver module 11 includes a first signal receiving end 11a and a second signal receiving end 11b, as shown in fig. 4. The first frequency band signal comprises a first frequency sub-band signal and a second frequency sub-band signal. The first sub-Band signal is a medium-low frequency radio frequency signal in the first Band signal, such as a radio frequency signal in a Band1, a Band 3, or the like. The second sub-Band is the high frequency radio frequency signal in the first frequency Band signal, such as the radio frequency signals of Band 38, Band40 and Band 41.
The first signal receiving terminal 11a is connected to the third strobe terminal 1221b, and the second signal receiving terminal 11b is connected to the second common terminal 1221 a. The first signal receiving end 11a is configured to receive a first sub-band signal; the second signal receiving end 11b is configured to receive the second frequency band signal and the second sub-frequency band signal.
in some embodiments, the first switch 1211 further includes a fifth gate terminal 1211d, as shown in fig. 4. The fifth gate 1211d is connected to the second signal receiving terminal 11 b.
In the carrier aggregation communication mode, the first switch 1211 communicates the first common terminal 1211a with the fifth strobe terminal 1211d to transmit the second sub-band signal received by the first antenna 13 to the second signal receiving terminal 11 b.
In some embodiments, the rf circuit 1 further includes a first multiplexer 15 and a second multiplexer 16, and the rf transceiver module 11 further includes a first signal transmitting end 11c and a second signal transmitting end 11d, as shown in fig. 5. The first multiplexer 15 includes a first signal terminal 15a, a second signal terminal 15b and a third signal terminal 15 c. The second multiplexer 16 includes a fourth signal terminal 16a, a fifth signal terminal 16b and a sixth signal terminal 16 c. In some embodiments, the first multiplexer 15 is a duplexer, and the second multiplexer 16 is a duplexer or a quadplexer.
the first multiplexer 15 has a first signal terminal 15a connected to the first signal transmitting terminal 11c, a second signal terminal 15b connected to the first signal receiving terminal 11a, and a third signal terminal 15c connected to the first gate terminal 1211 b.
The fourth signal terminal 16a of the second multiplexer 16 is connected to the second signal transmitting terminal 11d, the fifth signal terminal 16b is connected to the second signal receiving terminal 11b, and the sixth signal terminal 16c is connected to the fifth strobe terminal 1211d and the second common terminal 1221 a.
The first multiplexer 15 receives the first sub-band signal sent by the first signal sending end 11c and transmits the first sub-band signal to the first switch 1211, and receives the external first sub-band signal transmitted by the first switch 1211 and transmits the external first sub-band signal to the first signal receiving end 11 a.
The second multiplexer 16 receives the second frequency band signal and the second sub-frequency band signal sent by the second signal sending end 11d, and respectively sends the second frequency band signal and the second sub-frequency band signal to the second switch 1221 and the first switch 1211, and sends the external second frequency band signal transmitted by the second switch 1221 and the external second sub-frequency band signal transmitted by the first switch 1211 to the second signal receiving end 11 b.
in some embodiments, the radio frequency circuit 1 further comprises a first power amplifier 17 and a second power amplifier 18, as shown in fig. 6. Wherein, the input end 17a of the first power amplifier is connected with the first signal transmitting end 11c, and the output end 17b of the first power amplifier is connected with the second signal end 15b of the first multiplexer 15;
The input end 18a of the second power amplifier is connected to the second signal transmitting end 11d, and the output end 18b of the second power amplifier is connected to the sixth signal end 16d of the second multiplexer.
The first power amplifier 17 amplifies the first band signal transmitted from the first signal transmitting end 11c and transmits the first band signal to the first multiplexer 15.
the second power amplifier 18 amplifies the second frequency band signal transmitted by the second signal transmitting end 11d and transmits the second frequency band signal to the second multiplexer 16.
As shown in fig. 7, in some embodiments, the rf circuit 1 further includes a wireless fidelity module 19, and the second control sub-module 122 further includes a combiner 1222.
The combiner 1222 has a first port 1222a connected to the fourth gate terminal 1221c, a second port 1222b connected to the wireless fidelity module 19, and a third port 1222c connected to the second antenna 14.
in some embodiments, the combiner 1222 receives the second frequency band signal transmitted by the second switch 1221, receives the wifi signal transmitted by the wifi module 19, and transmits the second frequency band signal and the wifi signal to the second antenna 14, so as to jointly transmit the wifi signal and the second frequency band signal.
In some embodiments, the WiFi module 19 includes a WiFi (WIreless-Fidelity) module and a WiFi transceiver circuit. The WiFi module is connected to the combiner 1222 through a WiFi transceiver circuit. Wherein the WiFi transceiver circuitry is to receive and transmit wireless fidelity signals.
the radio frequency circuit 1 provided by the embodiment of the invention provides two antennas, namely a first antenna and a second antenna, and can select to transmit a first frequency band signal to the outside through the first antenna and transmit a second frequency band signal to the outside through the second antenna in a carrier aggregation communication mode; in a non-carrier aggregation communication mode, a second frequency band signal can be sent to the outside through the first antenna, so that the carrier aggregation function is realized, and the performance of the radio frequency circuit under the single LTE condition is improved.
In a preferred embodiment, a terminal is provided, as shown in fig. 8, the terminal 10 may include Radio Frequency (RF) circuitry 1, a memory 2 including one or more computer-readable storage media, an input module 3, a display module 4, and a processor 5 including one or more processing cores. Those skilled in the art will appreciate that the terminal structure shown in fig. 8 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The radio frequency circuit 1 can be used for transmitting and receiving information or receiving and transmitting signals during a call. If the downlink information of the base station is received, the received downlink information is handed to one or more processors 5 for processing; in addition, data relating to uplink is transmitted to the base station. In the preferred embodiment, the rf circuit 1 includes an rf transceiver module, a control module, a first antenna, and a second antenna. The radio frequency transceiver module is electrically connected with the first antenna and the second antenna through the control module respectively. Wherein the performance of the first antenna is better than the performance of the second antenna.
When the base station needs the terminal 10 to be in the carrier aggregation communication mode, a first configuration instruction is sent to the terminal 10. After the terminal 10 receives the first configuration instruction, the control module sends the first frequency band signal received by one antenna to the radio frequency transceiver module, and sends the second frequency band signal received by the second antenna to the radio frequency transceiver module.
When the base station needs the terminal 10 to be in the non-carrier aggregation communication mode, a second configuration instruction is sent to the terminal 10. After the terminal 10 receives the second configuration instruction, the control module sends the second frequency band signal received by the first antenna to the radio frequency transceiver module.
In some embodiments, the control module includes a first control submodule and a second control submodule. After the terminal 10 receives the first configuration instruction, the first control sub-module sends the first frequency band signal received by the first antenna to the radio frequency transceiver module; and the second control sub-module sends the second frequency band signal received by the second antenna to the radio frequency transceiving module.
after the terminal 10 receives the second configuration instruction, the first control sub-module and the second control sub-module cooperate with each other to jointly send the second frequency band signal received by the first antenna to the radio frequency transceiver module.
in some embodiments, the first control module includes a first switch and the second control module includes a second switch. The first switch comprises a first common end, a first gating end and a second gating end. The second switch comprises a second common terminal, a third gating terminal and a fourth gating terminal.
The first common end is connected with the first antenna, the first gating end is connected with the radio frequency transceiving module, and the second gating end is connected with the third gating end. The second public end is connected with the radio frequency transceiving module, and the fourth gating end is connected with the second antenna.
After the terminal 10 receives the first configuration instruction, the first switch communicates the first common terminal with the first gating terminal to send the first frequency band signal received by the first antenna to the radio frequency transceiver module; the second switch communicates the second common terminal with the fourth gating terminal to transmit the second frequency band signal received by the second antenna to the radio frequency transceiver module.
After the terminal 10 receives the second configuration instruction, the first switch connects the first common terminal with the second gating terminal, the second switch connects the second common terminal with the third gating terminal, and the first common terminal and the third gating terminal are matched with each other to jointly send the second frequency band signal received by the first antenna to the radio frequency transceiver module.
in some embodiments, the radio frequency circuit 1 further includes a wireless fidelity module, and the second control sub-module further includes a combiner. The combiner receives a second frequency band signal transmitted by the second switch, receives the wireless fidelity signal transmitted by the wireless fidelity module, and transmits the second frequency band signal and the wireless fidelity signal to the second antenna, so that the wireless fidelity signal and the second frequency band signal are transmitted together.
In some embodiments, the radio frequency circuit 1 further includes, but is not limited to, at least one power Amplifier, a multiplexer, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), and the like.
The memory 2 may be used to store software programs and modules that may control the rf circuitry to perform the associated functions. In practical applications, the processor 5 controls the rf circuit 1 to perform relevant functions by running software programs and modules stored in the memory 2.
The input module 3 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
The display module 4 may be used to display information entered by or provided to the user as well as various graphical user interfaces of the terminal, which may be made up of graphics, text, icons, video, and any combination thereof.
The processor 5 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 2 and calling data stored in the memory 2, thereby performing overall monitoring of the terminal. Optionally, the processor 5 may include one or more processing cores. In the preferred embodiment, when the terminal 10 receives the first configuration command or the second configuration command, the processor 5 will execute the software program in the memory 2 to control the rf circuit to perform the relevant functions.
Although not shown, the terminal further includes a power supply for supplying power to the respective components, a bluetooth module, a camera, and the like, which are not described in detail herein.
the terminal 10 provided in the embodiment of the present invention provides two antennas, namely a first antenna and a second antenna, and when in a carrier aggregation communication mode, the terminal can select to transmit a first frequency band signal to the outside through the first antenna and transmit a second frequency band signal to the outside through the second antenna; in a non-carrier aggregation communication mode, a second frequency band signal can be sent to the outside through the first antenna, so that the carrier aggregation function is realized, and the performance of the radio frequency circuit under the single LTE condition is improved.
The embodiment of the invention also provides a radio frequency circuit control method, which applies the radio frequency circuit 1 provided by the invention. As shown in fig. 9, the steps of the rf circuit control method include:
And step S101, acquiring the communication mode of the terminal.
There are many key technologies in LTE-a systems to meet the requirements in terms of frequency point, bandwidth, peak rate, and compatibility, such as carrier aggregation technology, enhanced multi-antenna technology, wireless network coding technology, and so on. The communication mode in which the terminal is located can be divided according to the kind of technology used. In the preferred embodiment, when the carrier aggregation technology is used, the terminal is considered to be in a carrier aggregation communication mode; when the carrier aggregation technology is not used, the terminal is considered not to be in the carrier aggregation communication mode.
Step S102, when the communication mode is judged to be the carrier aggregation communication mode, the first frequency band signal received by the first antenna is transmitted to the radio frequency transceiver module, and the second frequency band signal received by the second antenna is transmitted to the radio frequency transceiver module.
The first frequency band signal is a radio frequency signal of which the frequency band falls into a first preset frequency, and comprises a first sub-frequency band signal and a second sub-frequency band signal. The first sub-Band signal is a radio frequency signal of a low and medium frequency Band, such as a radio frequency signal of a Band1, a Band 3, or the like. The second sub-Band signal is a part of high Band rf signal, such as Band 38, Band40 and Band 41. The second frequency Band signal is a radio frequency signal whose frequency Band falls into a second preset frequency, and includes a part of high frequency radio frequency signals, such as Band 7.
The first antenna performance is better than the second antenna performance. The first antenna may receive a first frequency band signal and a second frequency band signal, and the second antenna may receive the second frequency band signal. The first antenna and the second antenna may be multi-frequency antennas, for example, the first antenna may cover Band 3 and Band 38 dual frequencies, or cover Band 3, Band7 and Band 38 triple frequencies.
for example, as shown in fig. 10, when the first frequency Band signal is a Band 3 frequency Band signal (referred to as a B3 signal for short), the second frequency Band signal is a Band7 frequency Band signal (referred to as a B7 signal for short), and the B3 signal and the B7 signal are aggregated, the Band 3 may be used as a main carrier member, and at this time, the radio frequency transceiver module may transmit the B3 signal in an uplink manner, and transmit the B3 signal to the first antenna through the power amplifier, but cannot transmit the B7 signal in the uplink manner, and only can receive the B7 signal in the downlink manner. At this time, since the performance of the second antenna is poor, the Band7 main set in the second antenna has almost no function in receiving, and at this time, the B7 signal can be received through the B7 diversity in the second antenna by sacrificing the performance of the Band7 main set, so that the carrier aggregation of the B3 signal and the B7 signal is realized. Wherein the main set of Band7 in the second antenna both receives and transmits B7 signals, and the diversity of Band7 in the second antenna only receives B7 signals and does not transmit B7 signals.
and step S103, when the communication mode is judged not to be the carrier aggregation communication mode, sending the second frequency band signal received by the first antenna to the radio frequency transceiver module.
Assuming that the second frequency band signal received by the first antenna is a B7 signal, when the communication mode is not the carrier aggregation communication mode, the first antenna sends a B7 signal to the radio frequency transceiver module, thereby improving the performance of the radio frequency circuit under the single LTE condition.
the radio frequency circuit control method provided by the embodiment of the invention selects to transmit a first frequency band signal to the outside through the first antenna and transmit a second frequency band signal to the outside through the second antenna in the carrier aggregation communication mode; and when the wireless communication system is in a non-carrier aggregation communication mode, a second frequency band signal is sent to the outside through the first antenna, so that the carrier aggregation function is realized, and the performance of the radio frequency circuit under the condition of single LTE is improved.
in specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.
It should be noted that, as one of ordinary skill in the art would understand, all or part of the steps in the various methods of the above embodiments may be implemented by relevant hardware instructed by a program, where the program may be stored in a computer-readable storage medium, such as a memory of a terminal, and executed by at least one processor in the terminal, and during the execution, the flow of the embodiments such as the information distribution method may be included. Among others, the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
In the foregoing, the radio frequency circuit and the terminal provided in the embodiments of the present invention are described in detail, and each functional module may be integrated in one processing chip, or each module may exist alone physically, or two or more modules are integrated in one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A radio frequency circuit, comprising: the antenna comprises a radio frequency transceiving module, a control module, a first antenna and a second antenna, wherein the first antenna is used for receiving a first frequency band signal and a second frequency band signal, the second antenna is used for receiving the second frequency band signal, and the first frequency band signal comprises a first sub-frequency band signal and a second sub-frequency band signal;
The radio frequency transceiving module comprises a first signal receiving end and a second signal receiving end, the first signal receiving end of the radio frequency transceiving module is electrically connected with the first antenna through the control module, and the second signal receiving end of the radio frequency transceiving module is electrically connected with the first antenna and the second antenna through the control module;
The control module is configured to transmit a second sub-band signal received by the first antenna to the second signal receiving end of the radio frequency transceiver module, transmit a first sub-band signal received by the first antenna to the first signal receiving end of the radio frequency transceiver module, and transmit a second sub-band signal received by the second antenna to the second signal receiving end of the radio frequency transceiver module in a carrier aggregation communication mode;
The control module is used for transmitting the second frequency band signal received by the first antenna to a second signal receiving end of the radio frequency transceiving module in a non-carrier aggregation communication mode;
Wherein the performance of the first antenna is better than the performance of the second antenna.
2. the radio frequency circuit of claim 1, wherein the control module comprises a first control submodule and a second control submodule;
The radio frequency transceiving module is electrically connected with the first antenna through the first control submodule, and the second control submodule is electrically connected with the radio frequency transceiving module, the first control submodule and the second antenna respectively;
The first control sub-module is configured to transmit a first frequency band signal received by the first antenna to the radio frequency transceiver module in a carrier aggregation communication mode;
The second control sub-module is configured to transmit a second frequency band signal received by the second antenna to the radio frequency transceiver module in a carrier aggregation communication mode;
The first control submodule and the second control submodule are configured to jointly transmit the second frequency band signal received by the first antenna to the radio frequency transceiver module in a non-carrier aggregation communication mode.
3. The radio frequency circuit of claim 2, wherein the first control submodule comprises a first switch comprising a first common terminal, a first strobe terminal, and a second strobe terminal, and the second control submodule comprises a second switch comprising a second common terminal, a third strobe terminal, and a fourth strobe terminal;
The first common end is connected with the first antenna, the first gating end is connected with the radio frequency transceiver module, and the second gating end is connected with the third gating end;
the second common end is connected with the radio frequency transceiver module, and the fourth gating end is connected with the second antenna;
The first switch is configured to communicate the first common terminal with the first gating terminal in a carrier aggregation communication mode, so as to transmit the first frequency band signal received by the first antenna to the radio frequency transceiver module;
the second switch is configured to communicate the second common terminal with the fourth gating terminal in a carrier aggregation communication mode, so as to transmit the second frequency band signal received by the second antenna to the radio frequency transceiver module;
the first switch and the second switch are used for communicating the first common terminal with the second gating terminal and communicating the second common terminal with the third gating terminal in a non-carrier aggregation communication mode, so that the second frequency band signal received by the first antenna is transmitted to the radio frequency transceiver module.
4. The RF circuit according to claim 3, wherein the RF transceiver module comprises a first signal receiving terminal and a second signal receiving terminal, and the first band signal comprises a first sub-band signal and a second sub-band signal;
The first signal receiving end is connected with the third gating end, and the second signal receiving end is connected with the second common end;
The first signal receiving end is configured to receive the first sub-band signal;
the second signal receiving end is configured to receive a second frequency band signal and the second sub-frequency band signal.
5. The radio frequency circuit of claim 4, wherein the first switch further comprises a fifth pass terminal;
the fifth gating end is connected with the second signal receiving end;
the first switch communicates the first common terminal with the fifth gating terminal in a carrier aggregation communication mode, so as to transmit the second sub-band signal received by the first antenna to the second signal receiving terminal.
6. the RF circuit of claim 5, further comprising a first multiplexer and a second multiplexer, wherein the RF transceiver module further comprises a first signal transmitting terminal and a second signal transmitting terminal;
A first signal end of the first multiplexer is connected with the first signal sending end, a second signal end of the first multiplexer is connected with the first signal receiving end, and a third signal end of the first multiplexer is connected with the first gating end;
A fourth signal end of the second multiplexer is connected with the second signal sending end, a fifth signal end of the second multiplexer is connected with the second signal receiving end, and a sixth signal end of the second multiplexer is connected with the fifth gating end and the second common end;
The first multiplexer receives a first sub-band signal sent by the first signal sending end and transmits the first sub-band signal to the first switch, and receives an external first sub-band signal transmitted by the first switch and transmits the external first sub-band signal to the first signal receiving end;
the second multiplexer is configured to receive a second frequency band signal and a second sub-frequency band signal sent by the second signal sending end, transmit the second frequency band signal and the second sub-frequency band signal to the second switch and the first switch, respectively, and transmit an external second frequency band signal transmitted by the second switch and an external second sub-frequency band signal transmitted by the first switch to the second signal receiving end.
7. the radio frequency circuit of claim 6, further comprising a first power amplifier and a second power amplifier;
The input end of the first power amplifier is connected with the first signal sending end, and the output end of the first power amplifier is connected with the second signal end of the first multiplexer;
The input end of the second power amplifier is connected with the second signal transmitting end, and the output end of the second power amplifier is connected with the sixth signal end of the second multiplexer;
The first power amplifier is configured to amplify a first frequency band signal sent by the first signal sending end and send the first frequency band signal to the first multiplexer;
The second power amplifier is configured to amplify a second frequency band signal sent by the second signal sending end and send the second frequency band signal to the second multiplexer.
8. The radio frequency circuit of claim 3, wherein the radio frequency circuit further comprises a wireless fidelity module, and the second control sub-module further comprises a combiner;
The combiner is provided with a first port connected with the fourth gating end, a second port connected with the wireless fidelity module, and a third port connected with the second antenna;
the combiner is configured to receive a second frequency band signal transmitted by the second switch, receive a wireless fidelity signal sent by the wireless fidelity module, and transmit the second frequency band signal and the wireless fidelity signal to the second antenna.
9. A terminal comprising radio frequency circuitry and a processor;
The radio frequency circuit is electrically connected with the processor;
The processor is used for processing the data in the terminal;
the radio frequency circuit is as claimed in any one of claims 1 to 8.
10. A method for controlling a radio frequency circuit, comprising:
acquiring a communication mode of a terminal;
When the communication mode is judged to be the carrier aggregation communication mode, transmitting a second sub-frequency band signal received by a first antenna to a second signal receiving end of a radio frequency transceiving module, transmitting a first sub-frequency band signal received by the first antenna to a first signal receiving end of the radio frequency transceiving module, and transmitting a second frequency band signal received by a second antenna to a second signal receiving end of the radio frequency transceiving module;
when the communication mode is judged not to be the carrier aggregation communication mode, sending the second frequency band signal received by the first antenna to a second signal receiving end of the radio frequency transceiving module;
Wherein the performance of the first antenna is better than the performance of the second antenna.
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| CN108683427B (en) * | 2018-03-29 | 2020-06-23 | 联想(北京)有限公司 | Antenna adjusting circuit and antenna adjusting method |
| CN111092295B (en) * | 2019-12-16 | 2023-04-07 | 闻泰通讯股份有限公司 | Antenna, antenna adjusting method, terminal and storage medium |
| CN111162802B (en) * | 2019-12-31 | 2022-04-22 | 联想(北京)有限公司 | Electronic equipment and signal transmission method |
| CN111817733B (en) * | 2020-07-28 | 2022-04-22 | 惠州Tcl移动通信有限公司 | Radio frequency structure and mobile terminal |
| CN112332871A (en) * | 2020-10-26 | 2021-02-05 | Tcl通讯（宁波）有限公司 | Antenna circuit and mobile terminal |
| CN113612023B (en) * | 2021-08-12 | 2022-11-04 | 惠州Tcl云创科技有限公司 | Antenna module for 5G N77 frequency band, frequency band segmentation method and mobile terminal |
| CN114337695A (en) * | 2021-11-05 | 2022-04-12 | 康佳集团股份有限公司 | Three-antenna WIFI chip, control processing method thereof and intelligent device |
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