CN115664438A - Radio frequency circuit, radio frequency equipment and sending method - Google Patents
Radio frequency circuit, radio frequency equipment and sending method Download PDFInfo
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- CN115664438A CN115664438A CN202211690951.7A CN202211690951A CN115664438A CN 115664438 A CN115664438 A CN 115664438A CN 202211690951 A CN202211690951 A CN 202211690951A CN 115664438 A CN115664438 A CN 115664438A
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Abstract
The embodiment of the invention discloses a radio frequency circuit, radio frequency equipment and a sending method, wherein the radio frequency circuit at least comprises the following components: the radio frequency power amplification device comprises a source signal module, a modulation and demodulation module, a radio frequency power amplification module and an antenna module, wherein the source signal module is used for sending radio frequency signals to the modulation and demodulation module; the modulation and demodulation module is used for modulating the radio frequency signal to obtain a baseband signal; the radio frequency power amplification module is used for carrying out power amplification on the baseband signal according to a preset target frequency point to obtain an amplified radio frequency signal; the antenna module is used for converting the amplified radio frequency signal into an electromagnetic wave and transmitting the electromagnetic wave to the base station, and the radio frequency circuit of the embodiment of the invention partially multiplexes the 5G frequency band and the 4G radio frequency circuit, supports most frequency bands, can cover most regions of the world, can flexibly configure frequency band combination according to requirements, can support NSA and SA networks, can save cost and reduce the updating and updating period of devices.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a radio frequency circuit, a radio frequency device, and a transmission method.
Background
With the continuous development of mobile networks, the application scenes of the 5G communication technology are more and more, and the 5G network has the characteristics of high speed, low time delay and wide coverage, so that the shipment volume of 5G terminal products such as mobile phones, tablets and the like is greatly increased.
In the prior art, a 4G network is generally adopted as a terminal product, and a radio frequency circuit is arranged on the terminal product of the 4G network, so that some frequency bands can be supported, but 5G network equipment is greatly changed relative to 4G network equipment, and the frequency bands are also increased greatly relative to 4G network equipment, so that the radio frequency circuit of the 5G network equipment is more complex, the types of devices are more, and the cost is higher.
Disclosure of Invention
In view of the above technical problems, embodiments of the present invention provide a radio frequency circuit, a radio frequency device, and a transmission method.
A first aspect of an embodiment of the present invention provides a radio frequency circuit, where the radio frequency circuit at least includes: the system comprises a source signal module, a modulation and demodulation module, a radio frequency power amplification module and an antenna module, wherein the source signal module is communicated with the radio frequency power amplification module through the modulation and demodulation module, and the radio frequency power amplification module is communicated with a base station through the antenna module; wherein:
the source signal module is used for sending radio frequency signals to the modulation and demodulation module;
the modulation and demodulation module is used for modulating the radio frequency signal to obtain a baseband signal;
the radio frequency power amplification module is used for carrying out power amplification on the baseband signal according to a preset target frequency point to obtain an amplified radio frequency signal;
the antenna module is used for converting the amplified radio frequency signals into electromagnetic waves and sending the electromagnetic waves to the base station.
Optionally, the antenna module at least includes an antenna switch and a plurality of antennas, the antenna switch is connected to the radio frequency power amplification module, and the antenna switch communicates with the base station through the plurality of antennas;
the antenna switch is used for switching the amplified radio frequency signals to a target antenna according to the target frequency point;
the target antenna is used for converting the amplified radio frequency signal into an electromagnetic wave and sending the electromagnetic wave to the base station.
Optionally, the radio frequency power amplifying module at least includes: low-frequency power amplifier, medium-high frequency power amplifier, ultrahigh frequency power amplifier and low noise amplifier.
Optionally, the antenna is configured to receive a backhaul signal returned by the base station, and send the backhaul signal to the low noise amplifier through the antenna switch.
Optionally, the low noise amplifier is configured to process the backhaul signal to obtain a processed radio frequency signal, and send the processed radio frequency signal to the modem module.
Optionally, the modulation and demodulation module is further configured to demodulate the processed radio frequency signal, and send the demodulated signal to the source signal module.
Optionally, the low noise amplifier is an FX3739 chip.
Optionally, the antenna switch is an FX5596 chip.
A second aspect of an embodiment of the present invention provides a radio frequency device, including the radio frequency circuit described in the first aspect.
A third aspect of an embodiment of the present invention provides a method for transmitting a radio frequency circuit, where the method is applied to the radio frequency circuit in the first aspect, and the method includes:
sending the radio frequency signal to be sent to a modulation and demodulation module for modulation;
the modulation and demodulation module sends the modulated baseband signal to a radio frequency power amplification module;
the radio frequency power amplification module is used for carrying out power amplification on the baseband according to a preset target frequency point to obtain an amplified radio frequency signal;
the antenna module converts the amplified radio frequency signal into an electromagnetic wave and sends the electromagnetic wave to the base station.
In the technical solution provided in the embodiment of the present invention, the radio frequency circuit at least includes: the system comprises a source signal module, a modulation and demodulation module, a radio frequency power amplification module and an antenna module, wherein the source signal module is communicated with the radio frequency power amplification module through the modulation and demodulation module; wherein: the source signal module is used for sending radio frequency signals to the modulation and demodulation module; the modulation and demodulation module is used for modulating the radio frequency signal to obtain a baseband signal; the radio frequency power amplification module is used for carrying out power amplification on the baseband signal according to a preset target frequency point to obtain an amplified radio frequency signal; the antenna module is used for converting the amplified radio frequency signal into an electromagnetic wave and transmitting the electromagnetic wave to the base station, and the radio frequency circuit of the embodiment of the invention partially multiplexes the 5G frequency band and the 4G radio frequency circuit, supports most frequency bands, can cover most regions of the world, can flexibly configure frequency band combination according to requirements, can support NSA and SA networks, can save cost and reduce the updating and updating period of devices.
Drawings
Fig. 1 is a schematic structural diagram of a radio frequency circuit provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another radio frequency circuit provided in the 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.
Referring to fig. 1, a schematic structural diagram of a radio frequency circuit according to an embodiment of the present invention is shown, the radio frequency circuit at least includes: the base station comprises a source signal module 101, a modulation and demodulation module 102, a radio frequency power amplification module 103 and an antenna module 104, wherein the source signal module 101 is communicated with the radio frequency power amplification module 103 through the modulation and demodulation module 102, and the radio frequency power amplification module 103 is communicated with the base station through the antenna module 104; wherein:
the source signal module is used for sending radio frequency signals to the modulation and demodulation module;
specifically, the source signal module is a baseband chip, and the baseband chip (MT 8791) converts the signal demodulated by the modulation and demodulation chip into a digital signal for processing. The source signal module receives a radio frequency signal sent by a source, wherein an original electrical signal sent by the source (information source, also called sending end) without modulation (spectrum shifting and conversion) is characterized by lower frequency, and the signal spectrum starts from the vicinity of zero frequency and has a low-pass form. The base band signal can be divided into a digital base band signal and an analog base band signal (accordingly, the source is also divided into a digital source and an analog source.) depending on the characteristics of the original electric signal, which is determined by the source.
The modulation and demodulation module is a modulation and demodulation chip (MT 6190): converting the radio frequency signal into a baseband signal;
the modulation and demodulation module is used for modulating the radio frequency signal to obtain a baseband signal;
the radio frequency power amplification module is used for carrying out power amplification on the baseband signal according to a preset target frequency point to obtain an amplified radio frequency signal;
the antenna module is used for converting the amplified radio frequency signal into an electromagnetic wave and sending the electromagnetic wave to the base station.
Optionally, the antenna module at least includes an antenna switch and a plurality of antennas, the antenna switch is connected to the radio frequency power amplification module, and the antenna switch communicates with the base station through the plurality of antennas;
the antenna switch is used for switching the amplified radio-frequency signals to a target antenna according to a target frequency point;
the target antenna is used for converting the amplified radio frequency signal into an electromagnetic wave and transmitting the electromagnetic wave to the base station.
Optionally, the radio frequency power amplifying module at least comprises: low-frequency power amplifier, medium-high frequency power amplifier, ultrahigh frequency power amplifier and low noise amplifier.
Wherein, the low frequency is: 617-960MHz;
the medium-high frequency is: 1805-2690MHz;
ultrahigh frequency: 3300-5925MHz.
Radio frequency power amplification chip: dividing the radio frequency signals into a low frequency power amplifier (NZ 5627), a medium frequency power amplifier (FX 5627) and an ultrahigh frequency power amplifier (FX 6877) according to different frequencies, and performing power amplification on the modulated radio frequency signals;
low noise amplification chip (FX 3739): amplifying the radio frequency signal received by the antenna;
optionally, the antenna is configured to receive a return signal returned by the base station, and send the return signal to the low noise amplifier through the antenna switch.
Antenna switch (FX 5596): and switching the signals after power amplification to an antenna end according to the frequency point.
And the antenna converts the radio-frequency signal after power amplification into electromagnetic waves and transmits the electromagnetic waves to the base station.
Optionally, the low noise amplifier is configured to process the feedback signal to obtain a processed radio frequency signal, and send the processed radio frequency signal to the modem module.
Optionally, the modem module is further configured to demodulate the processed radio frequency signal and send the demodulated signal to the source signal module.
According to the embodiment of the invention, the corresponding hardware materials are configured according to specific requirements, the frequency band is flexibly configured through software, and the current mature 4G mass production radio frequency chip can be fully utilized, so that the use of various 5G radio frequency chips is avoided, and the cost is saved. The embodiment of the invention is provided with 6 radio frequency antennas, can select corresponding antennas according to frequency points, supports NSA and SA networks, and can realize highest 4-path receiving, thereby achieving higher transmission rate.
The radio frequency combination circuit in the embodiment of the invention mainly comprises a radio frequency power amplification chip, a low noise amplification chip, an antenna switch and the like. The signal modulated by the modulation and demodulation chip is amplified by the radio frequency power amplification chip and then transmitted by the antenna through the antenna switch. The electromagnetic wave signal received by the antenna passes through the antenna switch and the low-noise amplification chip and then is demodulated by the modem. A radio frequency power amplifier of a part of 5G frequency band multiplexing 4G frequency band adopts six antennas, can support MIMO, and can support NSA and SA at the same time.
The embodiment of the invention is improved on the original 4G radio frequency circuit, can support most frequency bands of 4G and 5G, can meet a 5G standard protocol by matching the circuit on a software algorithm for configuration, and simultaneously supports NSA (Non-standard networking) and SA (standard networking) networks.
The NSA is a 5G network upgraded on the basis of a 4G mode, and the SA is a 5G network built completely on the basis of a 5G technology.
Compared with a 5G NSA Network, the 5G SA has the advantages of not only improving the uplink large bandwidth by about one time, but also having new capabilities of supporting Network Slicing (Network Slicing), edge computing (MEC) and the like. Edge computing capabilities can enable a vast industry market for autopilot, smart manufacturing, immersive electronic contest games, and the like. The market value excited by the enterprise private network based on the network slicing is more huge, and each connection service has a special 5G network slice by means of the network slicing technology so as to meet a certain specific requirement, and a brand new operation mode is created for various industries.
The embodiment of the invention also provides radio frequency equipment which comprises the radio frequency circuit.
The embodiment of the present invention further provides a sending method applied to the radio frequency circuit, where the method includes:
sending a radio frequency signal to be sent to a modulation and demodulation module for modulation;
the modulation and demodulation module sends the modulated baseband signal to the radio frequency power amplification module;
the radio frequency power amplification module performs power amplification on the baseband according to a preset target frequency point to obtain an amplified radio frequency signal;
the antenna module converts the amplified radio frequency signal into an electromagnetic wave and transmits the electromagnetic wave to the base station.
Specifically, the sending method includes:
step S101: the baseband chip sends the data to be transmitted to the modulation and demodulation chip for modulation.
Step S102: the modulation and demodulation chip sends the modulated signal to the radio frequency power amplification chip for signal amplification, and different frequency bands correspond to different power amplifiers.
Step S103: the radio frequency signal amplified by the radio frequency power amplification chip is switched by the antenna switch and then is sent to the antenna with the corresponding frequency band.
Step S104: the antenna converts the radio frequency signal into an electromagnetic wave and transmits the electromagnetic wave to the base station.
Step S105: and the base station processes the received signal and transmits the signal back to the antenna.
Step S106: when receiving, the wireless signal received by the antenna enters the modulation and demodulation chip to be demodulated after passing through the antenna switch to the low noise amplifier, and then is received by the baseband chip.
In the technical solution provided in the embodiment of the present invention, the radio frequency circuit at least includes: the system comprises a source signal module, a modulation and demodulation module, a radio frequency power amplification module and an antenna module, wherein the source signal module is communicated with the radio frequency power amplification module through the modulation and demodulation module; wherein: the source signal module is used for sending radio frequency signals to the modulation and demodulation module; the modulation and demodulation module is used for modulating the radio frequency signal to obtain a baseband signal; the radio frequency power amplification module is used for carrying out power amplification on the baseband signal according to a preset target frequency point to obtain an amplified radio frequency signal; the antenna module is used for converting the amplified radio frequency signal into an electromagnetic wave and transmitting the electromagnetic wave to the base station, and the radio frequency circuit of the embodiment of the invention partially multiplexes the 5G frequency band and the 4G radio frequency circuit, supports most frequency bands, can cover most regions of the world, can flexibly configure frequency band combination according to requirements, can support NSA and SA networks, can save cost and reduce the updating and updating period of devices.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A radio frequency circuit, characterized by: the radio frequency circuit includes at least: the system comprises a source signal module, a modulation and demodulation module, a radio frequency power amplification module and an antenna module, wherein the source signal module is communicated with the radio frequency power amplification module through the modulation and demodulation module, and the radio frequency power amplification module is communicated with a base station through the antenna module; wherein:
the source signal module is used for sending radio frequency signals to the modulation and demodulation module;
the modulation and demodulation module is used for modulating the radio frequency signal to obtain a baseband signal;
the radio frequency power amplification module is used for carrying out power amplification on the baseband signal according to a preset target frequency point to obtain an amplified radio frequency signal;
the antenna module is used for converting the amplified radio frequency signal into an electromagnetic wave and sending the electromagnetic wave to the base station.
2. The radio frequency circuit according to claim 1, wherein the antenna module comprises at least an antenna switch and a plurality of antennas, the antenna switch is connected to the radio frequency power amplification module, and the antenna switch communicates with a base station through the plurality of antennas;
the antenna switch is used for switching the amplified radio frequency signal to a target antenna according to the target frequency point;
the target antenna is used for converting the amplified radio frequency signal into an electromagnetic wave and sending the electromagnetic wave to the base station.
3. The radio frequency circuit according to claim 1, wherein the radio frequency power amplification module comprises at least: low-frequency power amplifier, medium-high frequency power amplifier, ultrahigh frequency power amplifier and low noise amplifier.
4. The RF circuit of claim 3, wherein the antenna is configured to receive a return signal from the base station and send the return signal to the low noise amplifier via the antenna switch.
5. The RF circuit of claim 4, wherein the LNA is configured to process the backhaul signal to obtain a processed RF signal, and send the processed RF signal to the modem module.
6. The RF circuit of claim 5, wherein the modem module is further configured to demodulate the processed RF signal and send the demodulated signal to the source signal module.
7. The RF circuit of claim 3, wherein the low noise amplifier is an FX3739 chip.
8. The RF circuit of claim 2, wherein the antenna switch is an FX5596 chip.
9. A radio frequency device comprising a radio frequency circuit as claimed in any one of claims 1 to 8.
10. A transmission method applied to a radio frequency circuit according to any one of claims 1 to 8, the method comprising:
sending a radio frequency signal to be sent to a modulation and demodulation module for modulation;
the modulation and demodulation module sends the modulated baseband signal to a radio frequency power amplification module;
the radio frequency power amplification module is used for carrying out power amplification on the baseband according to a preset target frequency point to obtain an amplified radio frequency signal;
the antenna module converts the amplified radio frequency signal into an electromagnetic wave and sends the electromagnetic wave to the base station.
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| CN202211690951.7A CN115664438A (en) | 2022-12-28 | 2022-12-28 | Radio frequency circuit, radio frequency equipment and sending method |
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| CN202211690951.7A CN115664438A (en) | 2022-12-28 | 2022-12-28 | Radio frequency circuit, radio frequency equipment and sending method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117119570A (en) * | 2023-04-26 | 2023-11-24 | 荣耀终端有限公司 | Radio frequency power control method, module and terminal equipment |
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| CN113676211A (en) * | 2021-08-12 | 2021-11-19 | Oppo广东移动通信有限公司 | Amplifier module, radio frequency system and communication equipment |
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2022
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Patent Citations (7)
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| US20150108210A1 (en) * | 2013-10-19 | 2015-04-23 | Liming Zhou | RFID Positioning and Tracking Apparatus and Methods |
| CN105743831A (en) * | 2016-04-15 | 2016-07-06 | 数微(福建)通信技术有限公司 | Radio frequency processing method based on WIFI230mHz |
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| CN117119570A (en) * | 2023-04-26 | 2023-11-24 | 荣耀终端有限公司 | Radio frequency power control method, module and terminal equipment |
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