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CN119324713A - Radio frequency circuit, electronic equipment and signal processing method and device thereof - Google Patents

Radio frequency circuit, electronic equipment and signal processing method and device thereof Download PDF

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Publication number
CN119324713A
CN119324713A CN202310880341.1A CN202310880341A CN119324713A CN 119324713 A CN119324713 A CN 119324713A CN 202310880341 A CN202310880341 A CN 202310880341A CN 119324713 A CN119324713 A CN 119324713A
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China
Prior art keywords
frequency
signal
processor
target frequency
target
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CN202310880341.1A
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Inventor
翟悦廷
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Realme Mobile Telecommunications Shenzhen Co Ltd
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Realme Mobile Telecommunications Shenzhen Co Ltd
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Priority to CN202310880341.1A priority Critical patent/CN119324713A/en
Publication of CN119324713A publication Critical patent/CN119324713A/en
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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
    • H04B1/0064—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 with separate antennas for the more than one band
    • 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
    • H04B1/0053—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 with common antenna for more than one band
    • H04B1/0057—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 with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

本申请实施例公开了一种射频电路，包括：收发器、收发模组、频率转换模组、天线组件和处理器，收发器、收发模组、频率转换模组和天线组件依次连接，频率转换模组与处理器具有通信连接，频率转换模组用于接收来自处理器的第一目标频率，对来自天线组件的接收信号进行频率转换，得到第一目标频率的信号，频率转换模组用于接收来自处理器的第二目标频率，对来自收发模组的发送信号进行频率转换，得到第二目标频率的信号，第一目标频率为适用于接收模组的频率，第二目标频率为与发送信号的接收端进行通信所要求的频率。本申请实施例还同时提供了一种电子设备、信号处理方法和装置。

The embodiment of the present application discloses a radio frequency circuit, including: a transceiver, a transceiver module, a frequency conversion module, an antenna assembly and a processor, wherein the transceiver, the transceiver module, the frequency conversion module and the antenna assembly are connected in sequence, the frequency conversion module has a communication connection with the processor, the frequency conversion module is used to receive a first target frequency from the processor, and perform frequency conversion on a received signal from the antenna assembly to obtain a signal of the first target frequency, the frequency conversion module is used to receive a second target frequency from the processor, and perform frequency conversion on a transmitted signal from the transceiver module to obtain a signal of the second target frequency, the first target frequency is a frequency suitable for the receiving module, and the second target frequency is a frequency required for communicating with a receiving end of the transmitted signal. The embodiment of the present application also provides an electronic device, a signal processing method and an apparatus.

Description

Radio frequency circuit, electronic equipment and signal processing method and device thereof
Technical Field
The present application relates to radio frequency technology, and in particular, to a radio frequency circuit, an electronic device, and a signal processing method and apparatus thereof.
Background
In the related art, a Power Amplifier (PA) chip suitable for low frequency (0.6 GHz-1 GHz), a PA chip suitable for medium-high frequency (1.71 GHz-2.69 GHz), a PA chip suitable for very high frequency (3.3 GHz-5 GHz), a hierarchical receiving module suitable for low frequency and medium-high frequency, and a diversity receiving module suitable for very high frequency are required to be used in a radio frequency architecture.
However, the PA chip and the diversity receiving module in the radio frequency architecture occupy a larger space in the electronic device, so that it can be seen that the existing radio frequency circuit has a technical problem of larger occupied space.
Disclosure of Invention
The embodiment of the application provides a radio frequency circuit, electronic equipment and a signal processing method and device thereof, which can reduce the occupied space of the radio frequency circuit.
The technical scheme of the application is realized as follows:
The embodiment of the application provides a radio frequency circuit which comprises a transceiver, a transceiver module, a frequency conversion module, an antenna assembly and a processor, wherein the transceiver, the transceiver module, the frequency conversion module and the antenna assembly are sequentially connected, the frequency conversion module is in communication connection with the processor,
The frequency conversion module is used for receiving a first target frequency from the processor, and performing frequency conversion on a received signal from the antenna assembly to obtain a signal of the first target frequency;
The frequency conversion module is used for receiving a second target frequency from the processor, and performing frequency conversion on the transmission signal from the transceiver module to obtain a signal of the second target frequency;
the first target frequency is a frequency suitable for the transceiver module, and the second target frequency is a frequency required by communication with a receiving end of the transmitting signal.
An embodiment of the present application provides an electronic device, including a radio frequency circuit as described in one or more of the above embodiments
An embodiment of the present application provides a signal processing method, where the method is applied to the electronic device described in the foregoing embodiment, and includes:
When the antenna assembly receives the received signal, acquiring the frequency of the received signal, and sending the frequency of the received signal and a preset first target frequency to the frequency conversion module so that the frequency conversion module performs frequency conversion on the received signal to obtain a signal of the first target frequency;
When the sending module sends the sending signal, the frequency of the sending signal is obtained, and the frequency of the sending signal and a preset second target frequency are sent to the frequency conversion module, so that the frequency conversion module carries out frequency conversion on the sending signal, and a signal of the second target frequency is obtained.
An embodiment of the present application provides a signal processing apparatus, which is disposed in the electronic device according to the foregoing embodiment, including:
the first frequency conversion module is used for acquiring the frequency of the received signal when the antenna assembly receives the received signal, and sending the frequency of the received signal and a preset first target frequency to the frequency conversion module so that the frequency conversion module performs frequency conversion on the received signal to obtain a signal of the first target frequency;
And the second frequency conversion module is used for acquiring the frequency of the transmission signal when the transmission module transmits the transmission signal, and transmitting the frequency of the transmission signal and a preset second target frequency to the frequency conversion module so that the frequency conversion module performs frequency conversion on the transmission signal to obtain a signal of the second target frequency.
The embodiment of the application provides a signal processing device, which comprises a processor and a storage medium storing instructions executable by the processor, wherein the storage medium depends on the processor to execute operations through a communication bus, and when the instructions are executed by the processor, the signal processing method of one or more embodiments is executed.
Embodiments of the present application provide a computer-readable storage medium storing a computer program that causes a computer to perform the steps of the signal processing method according to one or more embodiments described above.
The embodiment of the application provides a radio frequency circuit, electronic equipment and a signal processing method and device thereof, comprising a transceiver, a transceiver module, a frequency conversion module, an antenna assembly and a processor, wherein the transceiver, the transceiver module, the frequency conversion module and the antenna assembly are sequentially connected, the frequency conversion module is in communication connection with the processor, the frequency conversion module is used for receiving a first target frequency from the processor, frequency conversion is carried out on a received signal from the antenna assembly to obtain a signal of the first target frequency, the frequency conversion module is used for receiving a second target frequency from the processor, frequency conversion is carried out on a transmitted signal from the transceiver module to obtain a signal of the second target frequency, the first target frequency is a frequency suitable for a receiving module, and the second target frequency is a frequency required for communication with a receiving end of a transmitted signal.
Drawings
Fig. 1 is a schematic structural diagram of an alternative rf circuit according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an alternative RF circuit in the related art;
fig. 3 is a schematic structural diagram of an example of an alternative radio frequency circuit according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of an alternative electronic device according to an embodiment of the present application;
fig. 5 is a schematic flow chart of an alternative signal processing method according to an embodiment of the present application;
Fig. 6 is a schematic structural diagram of an alternative signal processing device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another alternative signal processing device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
The embodiment of the application provides a radio frequency circuit, fig. 1 is a schematic structural diagram of an optional radio frequency circuit provided in the embodiment of the application, as shown in fig. 1, a radio frequency circuit 100 includes a transceiver 11, a transceiver module 12, a frequency conversion module 13, an antenna assembly 14 and a processor 15, the transceiver 11, the transceiver module 12, the frequency conversion module 13 and the antenna assembly 14 are sequentially connected, the frequency conversion module 13 is in communication connection with the processor 15,
The frequency conversion module 13 is configured to receive a first target frequency from the processor 15, and perform frequency conversion on a received signal from the antenna assembly 14 to obtain a signal of the first target frequency;
The frequency conversion module 13 is configured to receive the second target frequency from the processor, and perform frequency conversion on the transmission signal from the transceiver module 12 to obtain a signal of the second target frequency.
In modern computer systems, binary is used to store specific data and information, and in mobile phone systems, to implement data interaction (call, data network) of a terminal, specific data information S BB (t) is usually generated by a baseband chip:
SBB(t)＝∑n＝1anp(t-nT)(1)
where a n is a particular binary data, p (t-nT) may characterize the duration of each signal depending on the particular modulation scheme.
Fourier transforming the above expression finds that the baseband signal is concentrated at 0Hz in the frequency domain, and in order to achieve transmission of the radio signal to a remote location and prevent the communication signal from being interfered, the transmitted signal is typically subjected to carrier transmission, and finally a signal similar to S (t) is formed for radio transmission, where S (t) is expressed as follows:
Wherein f is the frequency of the carrier, i.e. the frequency point of the specific signal transmission, Is the phase of the carrier signal. In order to prevent interference of signals transmitted by the respective wireless systems, the third generation partnership project (3rd Generation Partnership Project,3GPP) defines a number of frequency ranges, i.e., frequency bands, in which the mobile terminals are permitted to communicate. The present mobile communication terminal needs to use a plurality of power amplifiers and diversity receiving modules adapted to different frequency bands to process signals in different frequency bands, and fig. 2 is taken as an example for illustration.
Fig. 2 is a schematic diagram of an alternative rf circuit in the related art, as shown in fig. 2, the rf circuit 200 includes a Transceiver (Transceiver) 21, a Low Band (LB) PA22, a Mid-High Band (MHB) PA23, a very High Band (UHB) PA24, a Diversity-Front-end module (Di-FEM) 25, a UHB Di-FEM26, an antenna assembly 27, an antenna assembly 28, and an antenna assembly 29, wherein the antenna assembly 27 is connected to one end of the LB PA22, the other end of the LB PA22 is connected to the Transceiver 21, the antenna assembly 28 is connected to one end of the MHB PA23 and one end of the MHB Di-FEM25, the other end of the MHB PA23 and the other end of the MHB Di-FEM25 are connected to the Transceiver 21, respectively, the antenna assembly 29 is connected to one end of the UHB PA24 and one end of the UHB Di-FEM26, and the other end of the UHB 24 and the UHB Di-FEM26 are connected to the Transceiver 21, respectively.
It can be seen that in the related art, one LB PA, one MHB PA, one UHB PA, one MHB Di-FEM, and one UHB Di-FEM are used, which require a large space inside the electronic device.
In order to reduce the space occupied by the rf circuit, in the embodiment of the present application, the frequency conversion module 13 is disposed between the transceiver module 12 and the antenna assembly 15 in the rf circuit 100, and the disposed frequency conversion module 13 is further connected to the processor 15, where it should be noted that the transceiver module 12 may be PA, where PA is a module for receiving and is a module for transmitting, and the transceiver module 12 may further include PA and Di-FEM, where PA is a module for transmitting and Di-FEM is a module for receiving, and the embodiment of the present application is not limited in this way.
The processor 15 may be a processor in the electronic device in which the radio frequency circuit 100 is located, or may be an independent processor, which is not limited in this embodiment of the present application.
The processor 15 is configured to obtain a first target frequency and a second target frequency, where the first target frequency is a frequency suitable for the transceiver module 12, that is, the frequency suitable for the transceiver module 12 of the radio frequency circuit 100 is stored in the processor 15 in advance, so as to obtain the first target frequency, and send the first target frequency to the frequency conversion module 13, so that the frequency conversion module 13 can convert the received signal into a signal of the first target frequency.
The second target frequency is a frequency required by the radio frequency circuit 100 to communicate with the receiving end of the transmission signal, that is, the processor 15 knows the frequency required to communicate with the receiving end of the transmission signal, that is, the second target frequency, so as to obtain the second target frequency, and send the second target frequency to the frequency conversion module 13, so that the frequency conversion module 13 can convert the transmission signal into a signal of the second target frequency.
The frequency conversion module 13 may include two steps of carrier adding and filtering, or may include three steps of phase shifting, carrier loading and filtering, which is not limited in this embodiment of the present application.
The radio frequency circuit 100 may be disposed in a cellular module, and/or the radio frequency circuit 100 may be disposed in a Wi-Fi module, that is, the radio frequency circuit 100 may be applied not only in cellular communications but also in Wi-Fi communications, which is not limited in this embodiment of the present application.
In this way, the frequency conversion module 13 and the processor 15 can convert the received signal into a signal with a frequency suitable for the transceiver module 12, and convert the transmitted signal into a signal with a frequency required for communication with the receiving end of the transmitted signal, so that the transceiver module 12 is only required to complete the transceiver of signals with multiple frequency bands, thereby reducing the occupied space of the radio frequency circuit 100.
In order to frequency convert the signal to a first target frequency upon receipt of the received signal, in an alternative embodiment the frequency conversion module 13 comprises a first mixer and a first filter, wherein the first mixer and the first filter are each in communication with the processor 15, the first mixer being connected between the antenna assembly and the first filter, the first filter being connected between the first mixer and the receiving end of the transceiver module, wherein,
When the antenna assembly receives the received signal, the first mixer is configured to receive a first target frequency and a frequency of the received signal from the processor 15, and add a first carrier to the received signal based on the first target frequency and the frequency of the received signal, to obtain a signal after adding the first carrier;
the first filter is configured to receive the first target frequency from the processor 15, and filter the signal after the first carrier is applied, to obtain a signal of the first target frequency.
It will be appreciated that a filter and a mixer are sequentially disposed between the receiving end of the transceiver module 12 and the antenna assembly 14, that is, the first filter and the first mixer are respectively in communication with the processor 15, and then, after the antenna assembly 14 receives the received signal, the received signal is output to the first mixer, and the first mixer adds a first carrier to the received signal based on a first target frequency received from the processor 15, so as to obtain a signal after adding the first carrier, where the frequency of the first carrier is a difference between the first target frequency and the frequency of the received signal, specifically, the signal after adding the first carrier is obtained by multiplying sin (2pi_ c t) on the right side of the formula (2), where f c represents the frequency of the first carrier.
And deducing the signal subjected to the first carrier through the characteristic of the trigonometric function to obtain a signal containing the first target frequency, wherein after the first mixer outputs the signal subjected to the first carrier to the first filter, the first filter retains the signal of the first target frequency, so that the signal of the first target frequency is output to the transceiver module, and the transceiver module can process the signal of the first target frequency.
Further, in order to improve the quality of the signal at the first target frequency, in an alternative embodiment, the frequency conversion module 13 further comprises a first phase shifter, wherein the first phase shifter is in communication with the processor 15, the first phase shifter is connected between the antenna assembly 14 and a first mixer, the first mixer is connected between the first phase shifter and a first filter, wherein,
When the antenna component receives a received signal, the first phase shifter is used for receiving the initial phase of the received signal from the processor 15, shifting the phase of the received signal based on the initial phase, and obtaining a phase-shifted signal;
The first mixer is configured to receive a first target frequency and a frequency of a received signal from the processor 15, and to add a carrier to the phase-shifted signal based on the first target frequency and the frequency of the received signal, so as to obtain a signal after adding the first carrier;
the first filter is configured to receive the first target frequency from the processor 15, and filter the signal after the first carrier is applied, to obtain a signal of the first target frequency.
It will be appreciated that, in addition to the first mixer, the first filter and the processor 15, the frequency conversion module 13 further includes a first phase shifter, where the first phase shifter is disposed between the antenna assembly 14 and the first mixer and is in communication with the processor 15, and then, after the antenna assembly 14 receives the received signal, the received signal is output to the first phase shifter, and the first phase shifter receives an initial phase of the received signal sent from the processor 15, and shifts the phase of the received signal based on the initial phase, where the initial phase shift may be 0, and the initial phase may be reduced by the phase shift. The quality of the signal at the first target frequency can be improved by shifting the phase.
After the phase shift of the first phase shifter is completed, the phase-shifted signal is output to a first mixer, and the first mixer adds a first carrier to the phase-shifted signal based on a first target frequency received from the processor 15, so as to obtain a signal after adding the first carrier, where the frequency of the first carrier is a difference between the first target frequency and the frequency of the received signal, specifically, the signal after adding the first carrier is obtained by multiplying sin (2pi f c t) on the right side of the formula (2).
The signal after the first carrier is added is derived through the characteristic of the trigonometric function to obtain the signal containing the first target frequency, and then after the first mixer outputs the signal after the first carrier is added to the first filter, the first filter retains the signal of the first target frequency, so that the signal of the first target frequency is output to the transceiver module 12, and the transceiver module 12 can process the signal of the first target frequency.
In order to frequency convert the signal to a second target frequency when transmitting the transmission signal, in an alternative embodiment the frequency conversion module 13 comprises a second mixer and a second filter, wherein the second mixer and the second filter are each in communication with the processor 15, the second mixer is connected between the transmitting end of the transceiver module 12 and the second filter, the second filter is connected between the second mixer and the antenna assembly 14,
When the transceiver module 12 transmits the transmission signal, the second mixer is configured to receive the second target frequency and the frequency of the transmission signal from the processor 15, and add a second carrier to the transmission signal based on the second target frequency and the frequency of the transmission signal, so as to obtain a signal after adding the second carrier;
the second filter is configured to receive a second target frequency from the processor 15, and filter the signal after the second carrier is applied to obtain a signal of the second target frequency;
It may be appreciated that a mixer and a filter are sequentially disposed between the transmitting end of the transceiver module 12 and the antenna assembly 14, that is, the second mixer and the second filter are respectively in communication connection with the processor 15, and after the transceiver module 12 outputs a transmission signal to the second mixer, the second mixer adds a second carrier to the transmission signal based on a second target frequency received from the processor 15, so as to obtain a second-carrier-added signal, where the frequency of the second carrier is a difference between the second target frequency and the frequency of the transmission signal, specifically, a signal after adding the first carrier is obtained by multiplying sin (2pi f 1 t) on the right side of the formula (2), where f 1 represents the second target frequency.
The second carrier signal is derived from the characteristics of the trigonometric function to obtain a signal comprising the second target frequency, and then after the second mixer outputs the second carrier signal to the second filter, the second filter retains the second target frequency signal, thereby outputting the second target frequency signal to the antenna assembly 14, so that the antenna assembly 14 can emit the second target frequency signal.
Further, in order to improve the quality of the signal at the second target frequency, in an alternative embodiment, the frequency conversion module 13 further comprises a second phase shifter, wherein the second phase shifter is in communication with the processor 15, the second phase shifter is connected between the transmitting end of the transceiver module 12 and a second mixer, the second mixer is connected between the second phase shifter and a second filter, wherein,
The second phase shifter is configured to receive an initial phase of the transmission signal from the processor 15, and shift the phase of the transmission signal based on the initial phase to obtain a phase-shifted signal;
the second mixer is configured to receive the second target frequency and the frequency of the transmission signal from the processor 15, and add a second carrier to the transmission signal based on the second target frequency and the frequency of the transmission signal, so as to obtain a signal after adding the second carrier;
the second filter is configured to receive the second target frequency from the processor 15, and filter the signal after the second carrier is applied to obtain a signal of the second target frequency.
It will be appreciated that, the frequency conversion module 13 includes, in addition to the second mixer, the second filter and the processor, a second phase shifter, where the second phase shifter is disposed between the transceiver module 12 and the second mixer and is in communication with the processor 15, and after the transceiver module 12 outputs the transmission signal to the second phase shifter, the second phase shifter receives the initial phase of the transmission signal sent from the processor 15, and shifts the transmission signal based on the initial phase, where the initial phase shift may be 0, or the initial phase may be reduced by the phase shift. The quality of the signal at the second target frequency can be improved by shifting the phase.
After the phase shift of the second phase shifter is completed, the phase-shifted signal is output to a second mixer, and the second mixer adds a second carrier to the phase-shifted signal based on a second target frequency received from the processor 15, so as to obtain a signal after adding the second carrier, where the frequency of the second carrier is a difference between the second target frequency and the frequency of the transmission signal, specifically, the signal after adding the first carrier is obtained by multiplying sin (2pi f 1 t) on the right side of the formula (2).
The second carrier signal is derived from the characteristics of the trigonometric function to obtain a signal comprising the second target frequency, and then after the second mixer outputs the second carrier signal to the second filter, the second filter retains the second target frequency signal, thereby outputting the second target frequency signal to the antenna assembly 14, so that the antenna assembly 14 can emit the second target frequency signal.
Wherein, the first filter and the second filter may be band-pass filters.
The radio frequency circuitry in one or more of the above embodiments is described below by way of example.
The embodiment provides a signal processing method, which can convert received signals in different frequency bands into signals in the same frequency band, thereby realizing the extremely simple architecture design scheme of a power amplifier and a diversity receiving module of a radio frequency circuit with only one frequency band.
Fig. 3 is a schematic structural diagram of an example of an alternative radio frequency circuit provided in an embodiment of the present application, where, as shown in fig. 3, a terminal includes a radio frequency circuit 300, and the radio frequency circuit 300 includes a transceiver 31, an MHB PA32, an MHB Di-FEM33, a phase shifter 341, a mixer 351, a band pass filter 361, a phase shifter 342, a mixer 352, a band pass filter 362, a processor 37, an antenna component 381, an antenna component 382, and an antenna component 383, where the antenna component 381 is an antenna for receiving and transmitting LB signals, the antenna component 382 is an antenna for receiving and transmitting MHB signals, and the antenna component 383 is an antenna for receiving and transmitting UHB signals,
Transceiver 31 is connected to one end of MHB PA32 and one end of MHB Di-FEM33, respectively, the transmitting end of MHB PA32 is connected to antenna element 382, the transmitting end of MHB Di-FEM33 is connected to antenna element 382, the transmitting end of LB of MHB PA, phase shifter 341, mixer 351, band pass filter 361 and antenna element 381 are connected in order, and antenna element 383, phase shifter 342, mixer 352, band pass filter 362 and the receiving end of UHB of MHB Di-FEM are connected in order.
Based on the above-mentioned antenna assembly 383, phase shifter 342, mixer 352, band-pass filter 362 and the receiving end of the UHB of MHB Di-FEM33, the received signal is assumed to be S RX (t), which is expressed as follows:
Wherein S BB (t) is the data information specifically carried by the signal, N (t) is the noise interference containing all frequencies outside the target signal, when the terminal establishes connection with the base station, the base station information is received for the signal, the specific frequency band of the signal is clarified, and for the signal, the signal is firstly passed through the phase shifter 342 to modulate the phase For 0, assuming that the received signal has a frequency f RX and the terminal has only an MHB Di-FEM33 suitable for frequency f t, the received signal is passed through a mixer 352 in a manner similar to the carrier wave applied to the received signal, which carrier wave has a frequency f c＝ft-fRX, and the signal after the carrier wave is applied is as follows:
SRX(t)＝SBB(t)×sin(2πfRXt)×sin(2πfct)+N(t)×sin(2πfct) (4)
The characteristics of the trigonometric function are as follows:
cos(a+b)=cosa×cosb-sina×sinb (5)
cos(a-b)=cosa×cosb+sina×sinb (6)
therefore, the following formula can be derived:
that is, based on the above formula (8), the above formula (4) can be modified as follows:
The signal obtained in the above formula (9) is passed through a band pass filter 362, and the signal with the frequency f t＝fRX+fc is retained, namely: The final generated signal is as follows:
n ft (t) is a noise interference signal at f t frequency, namely, the conversion of the carrier frequency is realized.
In addition, the transmitting system is similar to the receiving system except that the frequency of the carrier is the difference between the frequency of the transmitted signal and f t.
It should be noted that, because the higher the carrier frequency is, the higher the cost of the corresponding radio frequency chip is, but because of the requirement of the local operator, the mobile terminal needs to adapt to the very high frequency or millimeter wave, for this, the use of one PA and Di-FEM in the above example can be expanded to use multiple PAs and Di-FEM, and to meet the frequency band requirement of the operator, the same mode is applied to convert the carrier frequency, so that the mobile terminal adapts to the local special frequency band, thereby saving the cost, or the application of the carrier frequency conversion mode only reduces part of the PA or Di-FEM modules.
In addition, the above example is not limited to cellular modules, and is applicable to WIFI modules, and the above example uses a filter to only retain signals of target frequency, resulting in attenuation of signal strength to half, and the other half of signals of frequency f RX-fc are filtered out, where the other half of signals of frequency f RX-fc can be optimizedRepeating the frequency conversion process for multiple times, and adding the signal components with frequency f RX+fc generated each timeThe original signal strength can be recovered.
In the above example, the structure of the mixer and the filter is adopted to convert all the received or transmitted frequency bands into frequency bands with similar frequencies, thereby saving the use of PA and Di-FEM chips and realizing the purposes of reducing the cost and saving the space.
In other words, the cost can be reduced, the carrier frequency conversion module can realize the transmission and the reception of all frequency bands by only one group of power amplifier and diversity receiving module, the use of PA and Di-FEM is reduced, and a large amount of space is saved for the main board of the mobile terminal.
The embodiment of the application provides a radio frequency circuit which comprises a transceiver, a transceiver module, a frequency conversion module, an antenna assembly and a processor, wherein the transceiver, the transceiver module, the frequency conversion module and the antenna assembly are sequentially connected, the frequency conversion module is in communication connection with the processor, the frequency conversion module is used for receiving a first target frequency from the processor, frequency conversion is carried out on a received signal from the antenna assembly to obtain a signal of the first target frequency, the frequency conversion module is used for receiving a second target frequency from the processor, frequency conversion is carried out on a transmitted signal from the transceiver module to obtain a signal of the second target frequency, the first target frequency is a frequency suitable for the receiving module, the second target frequency is a frequency required by communication with a receiving end of the transmitted signal, namely, in the embodiment of the application, the frequency conversion module is in communication connection with the processor, so that the transceiver module can receive the signal or the transmitted signal in the radio frequency circuit through the frequency conversion module and the processor, the transceiver module can receive the signal of the first target frequency of the transceiver module, the antenna assembly can convert the frequency of the signal of the transceiver module with the second target frequency of the transceiver module, and the frequency can occupy less frequency channels than the transceiver module, and the frequency channel of the transceiver module can be used for receiving and transmitting and receiving the signals, and the frequency channels of the transceiver module can be combined.
Based on the same inventive concept as the foregoing embodiments, the present embodiment provides an electronic device, and fig. 4 is a schematic structural diagram of an alternative electronic device provided by the embodiment of the present application, and as shown in fig. 4, an electronic device 400 may include the radio frequency circuit 100 according to one or more embodiments described above.
An embodiment of the present application provides a signal processing method, and fig. 5 is a schematic flow chart of an alternative signal processing method provided in the embodiment of the present application, where the method is applied to an electronic device described in one or more embodiments, and as shown in fig. 5, the signal processing method may include:
s501, when an antenna component receives a received signal, acquiring the frequency of the received signal, and sending the frequency of the received signal and a preset first target frequency to a frequency conversion module so that the frequency conversion module performs frequency conversion on the received signal to obtain a signal of the first target frequency;
S502, when the sending module sends the sending signal, the frequency of the sending signal is obtained, the frequency of the sending signal and the preset second target frequency are sent to the frequency conversion module, so that the frequency conversion module carries out frequency conversion on the sending signal, and a signal of the second target frequency is obtained.
An embodiment of the present application provides a signal processing apparatus, where the apparatus is disposed in an electronic device according to one or more embodiments of the present application, and fig. 6 is a schematic structural diagram of an alternative signal processing apparatus provided in an embodiment of the present application, as shown in fig. 6, where the apparatus includes:
The first frequency conversion module 61 is configured to obtain a frequency of a received signal when the antenna assembly receives the received signal, and send the frequency of the received signal and a preset first target frequency to the frequency conversion module, so that the frequency conversion module performs frequency conversion on the received signal to obtain a signal of the first target frequency;
The second frequency conversion module 62 is configured to obtain the frequency of the transmission signal when the transmission module transmits the transmission signal, and transmit the frequency of the transmission signal and the preset second target frequency to the frequency conversion module, so that the frequency conversion module performs frequency conversion on the transmission signal to obtain a signal of the second target frequency.
In practical applications, the first frequency conversion module 61 and the second frequency conversion module 62 may be implemented by a processor located on a signal Processing device, specifically, a central Processing unit (CPU, central Processing Unit), a microprocessor (MPU, microprocessor Unit), a digital signal processor (DSP, digital Signal Processing), or a field programmable gate array (FPGA, field Programmable GATE ARRAY), etc.
An embodiment of the present application provides a signal processing apparatus, and fig. 7 is a schematic structural diagram of another alternative signal processing apparatus provided in the embodiment of the present application, as shown in fig. 7, and in this embodiment of the present application, a signal processing apparatus 700 is provided, including:
A processor 71 and a storage medium 72 storing instructions executable by the processor 71, the storage medium 72 performing operations in dependence on the processor 71 through a communication bus 73, the instructions, when executed by the processor 71, performing the signal processing method performed in one or more embodiments described above.
In practical use, the components in the terminal are coupled together via the communication bus 73. It is understood that the communication bus 73 is used to enable connected communication between these components. The communication bus 73 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as communication bus 73 in fig. 7.
Embodiments of the present application provide a computer storage medium for storing a computer program that causes a computer to perform the steps of the signal processing method according to one or more embodiments described above.
The computer readable storage medium may be a magnetic random access Memory (ferromagnetic random access Memory, FRAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable programmable Read Only Memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-Only Memory, EEPROM), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or Read Only optical disk (Compact Disc Read-Only Memory, CD-ROM), etc.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application.

Claims (11)

1. A radio frequency circuit is characterized by comprising a transceiver, a transceiver module, a frequency conversion module, an antenna assembly and a processor, wherein the transceiver, the transceiver module, the frequency conversion module and the antenna assembly are sequentially connected, the frequency conversion module is in communication connection with the processor,
The frequency conversion module is used for receiving a first target frequency from the processor, and performing frequency conversion on a received signal from the antenna assembly to obtain a signal of the first target frequency;
The frequency conversion module is used for receiving a second target frequency from the processor, and performing frequency conversion on the transmission signal from the transceiver module to obtain a signal of the second target frequency;
the first target frequency is a frequency suitable for the transceiver module, and the second target frequency is a frequency required by communication with a receiving end of the transmitting signal.
2. The radio frequency circuit of claim 1, wherein the frequency conversion module comprises a first mixer and a first filter, wherein the first mixer and the first filter are each in communication with the processor, wherein the first mixer is coupled between the antenna assembly and the first filter, wherein the first filter is coupled between the first mixer and a receiving end of the transceiver module,
When the antenna component receives the received signal, the first mixer is configured to receive the first target frequency and the frequency of the received signal from the processor, and add a first carrier to the received signal based on the first target frequency and the frequency of the received signal, to obtain a first-carrier-added signal;
The first filter is used for receiving the first target frequency from the processor, filtering the signal after the first load is added, and obtaining a signal of the first target frequency;
the frequency of the first carrier is the difference between the first target frequency and the frequency of the received signal.
3. The radio frequency circuit of claim 2, wherein the frequency conversion module further comprises a first phase shifter, wherein the first phase shifter is in communication with the processor, the first phase shifter is connected between the antenna assembly and the first mixer, the first mixer is connected between the first phase shifter and the first filter, wherein,
When the antenna component receives the received signal, the first phase shifter is used for receiving an initial phase of the received signal from the processor, and based on the initial phase, the received signal is shifted to obtain a shifted signal;
The first mixer is configured to receive the first target frequency and the frequency of the received signal from the processor, and add a first carrier to the phase-shifted signal based on the first target frequency and the frequency of the received signal, to obtain a signal after adding the first carrier;
the first filter is configured to receive the first target frequency from the processor, and filter the signal after the first carrier is applied to obtain a signal of the first target frequency.
4. The radio frequency circuit of claim 1, wherein the frequency conversion module comprises a second mixer and a second filter, wherein the second mixer and the second filter are each in communication with the processor, wherein the second mixer is connected between a transmit end of the transceiver module and the second filter, wherein the second filter is connected between the second mixer and the antenna assembly,
When the transceiver module transmits the transmission signal, the second mixer is configured to receive the second target frequency and the frequency of the transmission signal from the processor, and add a second carrier to the transmission signal based on the second target frequency and the frequency of the transmission signal, to obtain a signal after adding a second carrier;
The second filter is configured to receive the second target frequency from the processor, and filter the second-carrier-added signal to obtain a signal of the second target frequency;
The frequency of the second carrier is the difference between the second target frequency and the frequency of the transmission signal.
5. The radio frequency circuit of claim 4, wherein the frequency conversion module further comprises a second phase shifter, wherein the second phase shifter is in communication with the processor, the second phase shifter is coupled between the transmit end of the transceiver module and the second mixer, the second mixer is coupled between the second phase shifter and the second filter, wherein,
The second phase shifter is used for receiving the initial phase of the sending signal from the processor, and shifting the phase of the sending signal based on the initial phase to obtain a phase-shifted signal;
The second mixer is configured to receive the second target frequency and the frequency of the transmission signal from the processor, and add a second carrier to the transmission signal based on the second target frequency and the frequency of the transmission signal, to obtain a second-carrier-added signal;
The second filter is configured to receive a second target frequency from the processor, and filter the second-loaded signal to obtain a signal of the second target frequency.
6. The radio frequency circuit according to any one of claims 1 to 5, wherein the radio frequency circuit is provided in a cellular module and/or the radio frequency circuit is provided in a Wi-Fi module.
7. An electronic device comprising a radio frequency circuit as claimed in any one of claims 1 to 6.
8. A signal processing method, wherein the method is applied to the electronic device as claimed in claim 7, and comprises:
When the antenna assembly receives the received signal, acquiring the frequency of the received signal, and sending the frequency of the received signal and a preset first target frequency to the frequency conversion module so that the frequency conversion module performs frequency conversion on the received signal to obtain a signal of the first target frequency;
When the sending module sends the sending signal, the frequency of the sending signal is obtained, and the frequency of the sending signal and a preset second target frequency are sent to the frequency conversion module, so that the frequency conversion module carries out frequency conversion on the sending signal, and a signal of the second target frequency is obtained.
9. A signal processing apparatus, characterized in that the apparatus is provided in an electronic device as claimed in claim 7, comprising:
the first frequency conversion module is used for acquiring the frequency of the received signal when the antenna assembly receives the received signal, and sending the frequency of the received signal and a preset first target frequency to the frequency conversion module so that the frequency conversion module performs frequency conversion on the received signal to obtain a signal of the first target frequency;
And the second frequency conversion module is used for acquiring the frequency of the transmission signal when the transmission module transmits the transmission signal, and transmitting the frequency of the transmission signal and a preset second target frequency to the frequency conversion module so that the frequency conversion module performs frequency conversion on the transmission signal to obtain a signal of the second target frequency.
10. A signal processing apparatus comprising a processor and a storage medium storing instructions executable by the processor, the storage medium performing operations in dependence upon the processor through a communication bus, the instructions, when executed by the processor, performing the method of signal processing as set forth in claim 8.
11. A computer-readable storage medium storing a computer program that causes a computer to execute the steps of the signal processing method according to claim 8.
CN202310880341.1A 2023-07-17 2023-07-17 Radio frequency circuit, electronic equipment and signal processing method and device thereof Pending CN119324713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310880341.1A CN119324713A (en) 2023-07-17 2023-07-17 Radio frequency circuit, electronic equipment and signal processing method and device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310880341.1A CN119324713A (en) 2023-07-17 2023-07-17 Radio frequency circuit, electronic equipment and signal processing method and device thereof

Publications (1)

Publication Number Publication Date
CN119324713A true CN119324713A (en) 2025-01-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN119324713A (en)

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