CN115085826B - Transmitting power detection circuit, method and wireless communication device - Google Patents
Transmitting power detection circuit, method and wireless communication device Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a transmitting power detection circuit, a transmitting power detection method and wireless communication equipment, wherein the circuit comprises the following components: a baseband processor; the zero intermediate frequency architecture transmitter is used for modulating and up-converting the analog baseband signal into a radio frequency signal; the power amplifier is used for amplifying the radio frequency signal so that the transmitting power of the radio frequency signal reaches a target power value; the coupler is used for carrying out coupling processing on the amplified radio frequency signals to obtain coupled radio frequency signals: a zero intermediate frequency architecture receiver for converting the coupled radio frequency signal to the analog baseband signal; the baseband processor is also connected with the zero intermediate frequency architecture receiver and is used for converting the analog baseband signal into a digital baseband signal and calculating the transmitting power of the acquired radio frequency signal according to the digital baseband signal. The invention reduces the difficulty of circuit design, reduces the size of the circuit, and is simpler in debugging due to the simple circuit, and is easy to restore signals.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a transmit power detection circuit, a method, and a wireless communications device.
Background
Due to the development of wireless communication technology, the transmission power detection method is gradually updated from 4G to 5G, and the technology development also puts forward more stringent requirements on radio frequency performance. Regulations co-existing with other wireless networks require tight control of transmit power, and in addition, accurate RF power control can improve radio frequency spectrum performance and save cost and power consumption of the transmitter power amplifier. To achieve accurate control of RF power, real-time power detection of the RF signal is essential.
In the prior art, a detection mode of the transmitting power is usually built by using a discrete device, a circuit is complex, debugging is difficult, and an original signal cannot be restored.
Disclosure of Invention
The embodiment of the invention aims to provide a transmitting power detection circuit, a transmitting power detection method and wireless communication equipment, which reduce the circuit design difficulty and the circuit size, and are simpler in debugging and easy to restore signals due to simple circuits.
In a first aspect, to achieve the above object, an embodiment of the present invention provides a transmit power detection circuit, including:
a baseband processor;
the zero intermediate frequency architecture transmitter is connected with the baseband processor and used for modulating and up-converting an analog baseband signal into a radio frequency signal;
the power amplifier is connected with the zero intermediate frequency architecture transmitter and is used for amplifying the radio frequency signal so that the transmitting power of the radio frequency signal reaches a target power value;
the coupler is connected with the power amplifier and is used for coupling the amplified radio frequency signals to obtain coupled radio frequency signals:
the zero intermediate frequency architecture receiver is connected with the coupler and used for converting the coupled radio frequency signals into the analog baseband signals;
the baseband processor is also connected with the zero intermediate frequency architecture receiver and is used for converting the analog baseband signal into a digital baseband signal and calculating the transmitting power of the acquired radio frequency signal according to the digital baseband signal.
In a second aspect, in order to solve the same technical problem, an embodiment of the present invention provides a method for detecting transmission power, which is applied to the transmission power detection circuit, and includes the steps of:
the control coupler is used for carrying out coupling treatment on the radio frequency signal amplified by the power amplifier to obtain a coupled radio frequency signal:
controlling a zero intermediate frequency architecture receiver to convert the coupled radio frequency signals into analog baseband signals;
and the control baseband processor converts the analog baseband signal into a digital baseband signal, and calculates the transmitting power of the acquired radio frequency signal according to the digital baseband signal.
In a third aspect, in order to solve the same technical problem, an embodiment of the present invention provides a wireless communication device, including the transmit power detection circuit.
The embodiment of the invention provides a transmitting power detection circuit, a transmitting power detection method and wireless communication equipment, wherein the transmitting power detection circuit, the transmitting power detection method and the wireless communication equipment adopt a zero intermediate frequency architecture to realize power detection, and a local oscillator and a mixer are integrated through the zero intermediate frequency architecture, so that the transmitting power detection circuit is simpler, more convenient to debug and smaller in circuit area compared with a circuit of a discrete device, and can acquire a baseband signal for sensing transmitting signal distortion.
Drawings
Fig. 1 is a schematic diagram of a structure of a transmit power detection circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another structure of a transmit power detection circuit according to an embodiment of the present invention;
fig. 3 is a flow chart of a method for detecting transmission power according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a wireless communication device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a transmit power detection circuit according to an embodiment of the present invention, including:
a baseband processor 10;
in particular, the baseband processor 10 is a highly complex system on a chip (SoC), the baseband processor 10 can synthesize baseband signals to be transmitted and decode received baseband signals, and the baseband processor 10 not only supports several communication standards, but also provides multimedia functions and interfaces for multimedia displays, image sensors, and audio equipment.
A zero intermediate frequency architecture transmitter 20, connected to the baseband processor 10, for modulating and up-converting an analog baseband signal into a radio frequency signal;
specifically, the Zero Intermediate Frequency (ZIF) architecture can integrate more functions, and the zero intermediate frequency design not only can realize high performance, but also has great flexibility, can support ultra-wide frequency and bandwidth, and can maintain nearly flat performance. Meanwhile, the Zero Intermediate Frequency (ZIF) architecture can reduce the radio frequency filter, so that the size of the PCB-sized wireless communication device can be greatly reduced, the frequency band high-speed process is simplified, and the effort input during size change can be reduced. The zero intermediate frequency architecture transmitter 20 is connected to the baseband processor 10, and is used for modulating and up-converting the analog baseband signal output by the baseband processor 10 into a radio frequency signal, and the zero intermediate frequency architecture transmitter 20 is connected to an antenna through the power amplifier 30 and the coupler 40, so that the radio frequency signal amplified by the power amplifier 30 is transmitted through the antenna, and thus other wireless communication devices can receive the radio frequency signal transmitted by themselves.
A power amplifier 30, connected to the zero intermediate frequency architecture transmitter 20, for amplifying the radio frequency signal, so that the transmitting power of the radio frequency signal reaches a target power value;
the coupler 40 is connected to the power amplifier 30, and is configured to couple the amplified rf signal to obtain a coupled rf signal:
specifically, coupler 40 couples a portion of the energy out of the signal, which is commonly used for signal detection or monitoring, such as power measurement and detection.
The coupler 40 of the invention adopts a directional coupler 40, and the directional coupler 40 is a microwave/millimeter wave component commonly used in microwave measurement and other microwave systems, and can be used for signal isolation, separation and mixing, such as power monitoring, source output power amplitude stabilization, signal source isolation, transmission and reflection sweep frequency test and the like. The directional coupler 40 is a directional microwave power divider consisting essentially of a main line and a secondary line coupled to each other by various types of apertures, slots, gaps, etc. Therefore, a part of the power input from the "1" on the main line end is coupled into the secondary line, and the power is transmitted along only one direction (called "forward") of the secondary line and almost no power is transmitted along the other direction (called "reverse") due to interference or superposition of waves, so that a coupled radio frequency signal is obtained. Illustratively, coupler 40 of the present invention is of the type CP0603a3500GN.
A zero intermediate frequency architecture receiver 50, coupled to the coupler 40, for converting the coupled radio frequency signal to the analog baseband signal;
specifically, the zero intermediate frequency architecture transmitter 20 is connected to the coupler 40, and is used for demodulating and down-converting the coupled radio frequency signal output by the coupler 40 into an analog baseband signal, and the zero intermediate frequency architecture receiver 50 is connected to the antenna through the coupler 40, so as to receive radio frequency signals transmitted by other wireless communication devices through the antenna.
The baseband processor 10 is further connected to the zero intermediate frequency architecture receiver 50, and is configured to convert the analog baseband signal into a digital baseband signal, and calculate the transmission power of the acquired radio frequency signal according to the digital baseband signal.
Specifically, the coupler 40 of the present invention couples a tiny portion of a transmission signal to obtain a coupled radio frequency signal, and sends the coupled radio frequency signal to the zero intermediate frequency architecture receiver 50, the zero intermediate frequency architecture receiver 50 processes the coupled radio frequency signal to convert the coupled radio frequency signal into an analog baseband signal, the baseband processor 10 converts the analog baseband signal into a digital baseband signal, and then the baseband processor 10 calculates the digital baseband signal to obtain the transmission power of the acquired radio frequency signal.
Referring to fig. 2, fig. 2 is a schematic diagram of a transmit power detection circuit according to an embodiment of the present invention, where the baseband processor 10 includes: a digital-to-analog conversion module DAC and an analog-to-digital conversion module ADC;
the digital-to-analog conversion module DAC is used for generating corresponding analog baseband signals according to the baseband digital quantity;
the analog-to-digital conversion module ADC is used for performing analog-to-digital conversion on the radio frequency signal to obtain a corresponding digital baseband signal.
In particular, if the transmission power of the wireless communication device needs to be detected or even adjusted, the analog quantities need to be converted into digital quantities which can be identified by a computer, and the digital quantities after being analyzed and processed by the computer need to be converted into corresponding analog quantities, so that effective control on the controlled object can be realized, and a digital-analog conversion module DAC and an analog-digital conversion module ADC which can play a role of a bridge between the analog quantities and the digital quantities are needed.
The baseband digital quantity is represented by combining codes according to digital, in order to convert the baseband digital quantity into analog quantity, the codes of each bit must be converted into corresponding analog quantity according to the size of its bit weight, then these analog quantities are added, so that the total analog quantity proportional to the digital quantity can be obtained, and the digital-to-analog conversion can be implemented so as to obtain correspondent analog baseband signal.
The radio frequency signal is modulated and has a radio wave with a certain emission frequency. The base station transmits the radio frequency signal in the analog form through the antenna, namely, the digital-to-analog conversion module DAC is used for simulating the baseband digital quantity to generate the analog baseband signal, and then the analog baseband signal is mixed by a plurality of columns and modulated to obtain the radio frequency signal in the analog form to be transmitted through the antenna. In addition, the input radio frequency signal in analog form is converted into a digital baseband signal proportional thereto by an analog-to-digital conversion module ADC.
Referring to fig. 2, fig. 2 is a schematic diagram of a configuration of a transmit power detection circuit according to an embodiment of the present invention, and the baseband processor 10 further includes:
the comparison module is used for comparing the calculated transmitting power with a power threshold range; the power threshold range includes a coarse tuning range and a fine tuning range;
and the processing module is used for adjusting the transmitting power of the zero intermediate frequency architecture transmitter 20 to realize coarse adjustment if the calculated transmitting power is determined to be in the coarse adjustment range according to the comparison result, and adjusting the transmitting power of the baseband digital quantity to realize fine adjustment if the calculated transmitting power is determined to be in the fine adjustment range according to the comparison result.
Specifically, the transmission power is compared with a corresponding power threshold, and the baseband digital quantity is updated according to the comparison result, so that the baseband processor 10 adjusts the corresponding transmission power, and transmits the radio frequency signal according to the adjusted transmission power.
The corresponding power threshold value can be one or a plurality of power threshold values, and is preset. Each power threshold may correspond to a transmission power gear, such as first gear, second gear, etc. It will be appreciated that each gear is associated with a transmission power.
In a real scene, various interferences exist in the air, so that the value of the transmission power acquired once is relatively inaccurate. At the same time, too frequent adjustment of the transmit power may also affect the reception performance of the receiving device. Thus, the transmit power may be adjusted by the average of the plurality of transmit powers.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a baseband processor 10 according to an embodiment of the present invention, where the zero intermediate frequency architecture transmitter 20 includes: a first I-phase mixer M1, a first Q-phase mixer M2, a first local oscillator LO1, a summing amplifier M5 and a pre-amplifier PreAmp;
the first local oscillator LO1 is connected to the first I-phase mixer M1 and the first Q-phase mixer M2, and is configured to output a first local oscillator signal to the first I-phase mixer M1 and output a second local oscillator signal to the first Q-phase mixer M2;
in particular, in signal analysis, the signal is often subjected to vector decomposition, i.e., the signal is decomposed into two components of the same frequency, the same peak amplitude, but 90 phase difference. The digital baseband signal, the radio frequency signal, the analog baseband signal and the coupling radio frequency signal in the invention can be expressed by vectors.
The mixer may be referred to as a "frequency converter" or "frequency converter" that converts the frequency of an input signal to another frequency, e.g., the output signal frequency is equal to the sum, difference, or other combination of the two input signal frequencies. The mixer is typically composed of a nonlinear element and a frequency selective loop. The mixer of the present invention is a complex mixer.
The LOCAL OSCILLATOR (LOCAL OSCILLATOR) is also called LOCAL OSCILLATOR and is a free running sine wave OSCILLATOR. The local oscillator can generate a high-frequency constant-amplitude sine wave signal with a medium frequency higher than the received signal, and the local oscillator signal is injected into the mixer to be mixed with the high-frequency television signal to obtain an intermediate-frequency television signal.
The use of a local oscillator with a mixer may alter the signal frequency. This frequency conversion process (also known as heterodyning) produces sum and difference frequencies from the frequency of the local oscillator and the frequency of the input signal. Processing the signal at a fixed frequency may improve the performance of the radio receiver.
The first I-phase mixer M1 is connected with the digital-to-analog conversion module DAC and the first local oscillator LO1, and is configured to receive a first I-phase quadrature signal I1 in the analog baseband signal, and perform up-conversion processing on the first I-phase quadrature signal I1 and the first local oscillator signal to obtain an I-phase up-converted signal;
the first Q-phase mixer M2 is connected to the digital-to-analog conversion module DAC and the first local oscillator LO1, and is configured to receive a first Q-phase quadrature signal Q1 in the analog baseband signal, and perform up-conversion processing on the first Q-phase quadrature signal Q1 and the second local oscillator signal to obtain a Q-phase up-converted signal;
the summing amplifier M5 is connected to the first I-phase mixer M1 and the first Q-phase mixer M2, and is configured to sum the I-phase up-converted signal and the Q-phase up-converted signal to output the radio frequency signal;
the pre-amplifier PreAmp is connected with the summing amplifier M5 and is used for amplifying the radio frequency signal.
In particular, up-conversion in a transmitter converts a lower intermediate or baseband frequency to a higher intermediate or radio frequency in order to provide more efficient power transfer in the transmitter. That is, the present invention performs up-conversion processing on a first I-phase quadrature signal I1 and a first local oscillator signal to obtain an I-phase up-converted signal, and performs up-conversion processing on a first Q-phase quadrature signal Q1 and a second local oscillator signal to obtain a Q-phase up-converted signal, and finally performs summation processing on the I-phase up-converted signal and the Q-phase up-converted signal through a summation amplifier M5 to output a radio frequency signal.
The functions of the local oscillator and mixer in the present invention are combined in a zero intermediate frequency architecture transmitter, thereby reducing space, cost and power consumption.
Referring to fig. 2, the zero intermediate frequency architecture receiver 50 includes: a second I-phase mixer M3, a second Q-phase mixer M4, a second local oscillator LO2, a low noise power amplifier LNA;
the low noise power amplifier LNA is connected to the coupler 40, and is configured to receive the coupled radio frequency signal;
specifically, the coupled radio frequency signals in the present invention can be expressed as vectors. The mixer is positioned behind the low noise amplifier and can directly process the radio frequency signal amplified by the low noise amplifier. To implement the mixing function, the mixer also needs to receive a local oscillator signal from a local oscillator, and the circuit of the mixer completely works in the radio frequency band.
The second local oscillator LO2 is connected to the second I-phase mixer M3 and the second Q-phase mixer M4, and is configured to output a third local oscillator signal to the second I-phase mixer M3 and output a fourth local oscillator signal to the second Q-phase mixer M4;
the second I-phase mixer M3 is connected to the analog-to-digital conversion module ADC and the second local oscillator LO2, and is configured to perform down-conversion processing on the third local oscillator signal and a second I-phase quadrature signal in the coupled radio frequency signal to obtain an I-phase down-converted signal I2, and send the I-phase down-converted signal I2 to the analog-to-digital conversion module ADC;
the second Q-phase mixer M4 is connected to the analog-to-digital conversion module ADC and the second local oscillator LO2, and is configured to perform down-conversion processing on the fourth local oscillator signal and a second Q-phase quadrature signal in the coupled radio frequency signal to obtain a Q-phase down-converted signal Q2, and send the I-phase down-converted signal I2 to the analog-to-digital conversion module ADC.
In particular, down-conversion is in the receiver, which converts the radio frequency or higher frequency to a lower intermediate frequency or baseband, making the signal easier to process in the radio frequency receiver. That is, the present invention performs down conversion processing on the second I-phase quadrature signal and the third local oscillator signal to obtain an I-phase down-converted signal I2, and sends the I-phase down-converted signal I2 to the analog-to-digital conversion module ADC, and performs down conversion processing on the second Q-phase quadrature signal and the fourth local oscillator signal to obtain a Q-phase down-converted signal Q2, and finally sends the I-phase down-converted signal I2 and the Q-phase down-converted signal Q2 to the analog-to-digital conversion module ADC through the summing amplifier M5.
The functions of the local oscillator and mixer in the present invention are combined in the zero intermediate frequency architecture receiver 50, thereby reducing space, cost and power consumption. The transmit power detection circuit of the present invention is mainly composed of a baseband processing chip 10 with a DSP core, a zero intermediate frequency architecture transmitter 20 (i.e., RFIC in fig. 2), a zero intermediate frequency architecture receiver 50 (i.e., OBS in fig. 2), a power amplifier 30 (i.e., SPA in fig. 2), and a coupler 40 (i.e., coupling in fig. 2).
Referring to fig. 2, the analog-to-digital conversion module ADC is configured to perform analog-to-digital conversion on a radio frequency signal composed of the I-phase down-conversion signal and the Q-phase down-conversion signal to obtain a corresponding digital baseband signal.
Referring to fig. 2, the baseband processor 10 further includes:
and the calculation module is used for calculating the received signal strength according to the digital baseband signal and performing inverse operation calculation according to the received signal strength to obtain the transmitting power.
Wherein the computing module comprises:
the signal calculation unit is used for substituting the signal data of the digital baseband signal into the following formula to calculate and obtain the received signal strength of the radio frequency signal; the digital baseband signal is characterized according to the form of an I/Q signal;
the power calculation unit is used for substituting the following formula to calculate and obtain the transmitting power of the radio frequency signal according to the intensity of the received signal;
RSSI＝10lgP
wherein RSSI is the received signal strength, n is the number of sampling points in a preset time period, k is the serial number of the current sampling point, I k Is the value of the first I phase quadrature signal I1 in the digital baseband signal, Q k And P is the transmitting power, and lg is a logarithmic function sign with a base number of 10, which is the value of a second Q-phase quadrature signal in the digital baseband signal.
Specifically, the method is used for detecting downlink power on the 5GNR RRU so as to achieve the purpose of meeting the requirement of a mobile operator on transmitting power. The device adopts a radio frequency integrated circuit RFIC scheme, performs coupling acquisition and down-conversion and demodulation on radio frequency signals, performs analog-to-digital conversion on the signals after the signals are restored to baseband signals, and then performs calculation on digital signals to achieve the purpose of complete power detection.
A solution for power detection is provided for transmit power control of 5GNR RRU. The method adopts RFIC to reduce the complexity of the system. The method achieves the purpose of power detection by calculating the digital baseband signal.
Coupler 40 couples a small portion of the transmit signal to the OBS, which demodulates and down-converts the RF signal to an analog baseband signal, an ADC within the DSP converts the analog signal to a digital signal, and the DSP then calculates the digital signal to obtain a RSSI (Received Signal Strength Indication) received signal strength indication. And then the transmitting power P is obtained through calculation of the received signal strength.
The invention adopts the zero intermediate frequency architecture receiver 50OBS to realize power detection, and the transmitting power detection circuit adopts the zero intermediate frequency architecture to integrate the local oscillator and the mixer, so that the circuit is simpler, more convenient to debug and smaller in circuit area compared with a circuit of a discrete device, and can acquire a baseband signal for sensing the distortion of a transmitting signal. The invention uses complex mixer in zero intermediate frequency architecture, so that the transmitting power detection circuit does not need RF filtering, and meanwhile, the baseband power efficiency can be optimized.
Referring to fig. 3, fig. 3 is a flow chart of a method for detecting transmission power according to an embodiment of the present invention, including:
s301, the control coupler 40 couples the radio frequency signal amplified by the power amplifier 30 to obtain a coupled radio frequency signal:
s302, controlling the zero intermediate frequency architecture receiver 50 to convert the coupled radio frequency signal into an analog baseband signal;
and S303, controlling the baseband processor 10 to convert the analog baseband signal into a digital baseband signal, and calculating the transmission power of the acquired radio frequency signal according to the digital baseband signal.
In this embodiment, the processor in the wireless communication device loads the instructions corresponding to the processes of one or more application programs into the memory according to the steps described above, and the processor executes the application programs stored in the memory, thereby implementing various functions.
Referring to fig. 4, in the implementation, each module and/or unit may be implemented as an independent entity, or may be implemented as the same entity or several entities, and the implementation of each module and/or unit may refer to the foregoing circuit embodiment, and the specific beneficial effects that may be achieved may refer to the beneficial effects in the foregoing circuit embodiment, which are not described herein again.
In addition, the wireless communication device provided by the embodiment of the invention can be a mobile terminal such as a smart phone, a tablet personal computer, a wireless router and the like. The wireless communication device includes a processor, a memory. The processor is electrically connected with the memory.
The processor is a control center of the wireless communication device, connects various parts of the entire wireless communication device using various interfaces and lines, and performs various functions of the wireless communication device and processes data by running or loading an application program stored in a memory and calling data stored in the memory, thereby performing overall monitoring of the wireless communication device.
The wireless communication device can realize the functions of any embodiment of the transmitting power detection circuit provided by the embodiment of the present invention, so that the beneficial effects of any one of the transmitting power detection circuits provided by the embodiment of the present invention can be realized, and detailed descriptions of the foregoing embodiments are omitted herein.
As shown in fig. 4, fig. 4 is a block diagram showing a specific structure of a wireless communication device according to an embodiment of the present invention, which may be used to implement the transmit power detection circuit provided in the above-described embodiment. The wireless communication device 900 may be a mobile terminal such as a smart phone or a notebook computer.
The RF circuit 910 is configured to receive and transmit electromagnetic waves, and to perform mutual conversion between the electromagnetic waves and the electrical signals, so as to communicate with a communication network or other devices. The RF circuitry 910 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and the like. The RF circuitry 910 may communicate with various networks such as the internet, intranets, wireless networks, or with other devices via wireless networks. The wireless network may include a cellular telephone network, a wireless local area network, or a metropolitan area network. The wireless network may use various communication standards, protocols, and technologies including, but not limited to, global system for mobile communications (Global System for Mobile Communication, GSM), enhanced mobile communications technology (Enhanced Data GSM Environment, EDGE), wideband code division multiple access technology (Wideband Code Division Multiple Access, WCDMA), code division multiple access technology (Code Division Access, CDMA), time division multiple access technology (Time Division Multiple Access, TDMA), wireless fidelity technology (Wireless Fidelity, wi-Fi) (e.g., institute of electrical and electronics engineers standards IEEE 802.11a,IEEE 802.11b,IEEE802.11g and/or IEEE802.11 n), internet telephony (Voice over Internet Protocol, voIP), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wi-Max), other protocols for mail, instant messaging, and short messaging, as well as any other suitable communication protocols, even including those not currently developed.
The memory 920 may be used to store software programs and modules, such as program instructions/modules corresponding to the transmit power detection circuitry in the embodiments described above, the processor 980 is implemented by running the software programs and modules stored within the memory 920, wherein one or more programs are stored in the memory and configured to be executed by one or more processors, the one or more programs including instructions for:
the control coupler is used for carrying out coupling treatment on the radio frequency signal amplified by the power amplifier to obtain a coupled radio frequency signal:
controlling a zero intermediate frequency architecture receiver to convert the coupled radio frequency signal into the analog baseband signal;
and the control baseband processor converts the analog baseband signal into a digital baseband signal, and calculates the transmitting power of the acquired radio frequency signal according to the digital baseband signal.
Memory 920 may include high-speed random access memory, but may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 920 may further include memory located remotely from processor 980, which may be connected to wireless communication device 900 by a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input unit 930 may be used to receive input numeric or character information and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 930 may comprise a touch-sensitive surface 931 and other input devices 932. The touch-sensitive surface 931, also referred to as a touch display screen or touch pad, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on or thereabout the touch-sensitive surface 931 using a finger, stylus, or any other suitable object or accessory) and actuate the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 931 may include two portions, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 980, and can receive commands from the processor 980 and execute them. In addition, the touch-sensitive surface 931 may be implemented in various types of resistive, capacitive, infrared, surface acoustic wave, and the like. In addition to the touch-sensitive surface 931, the input unit 930 may also include other input devices 932. In particular, other input devices 932 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc.
The display unit 940 may be used to display information entered by a user or provided to a user as well as various graphical user interfaces of the wireless communication device 900, which may be composed of graphics, text, icons, video, and any combination thereof. The display unit 940 may include a display panel 941, and alternatively, the display panel 941 may be configured in the form of an LCD (Liquid Crystal Display ), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 931 may overlay the display panel 941, and upon detection of a touch operation thereon or thereabout, the touch-sensitive surface 931 is passed to the processor 980 to determine the type of touch event, and the processor 980 then provides a corresponding visual output on the display panel 941 depending on the type of touch event. Although in the figures the touch-sensitive surface 931 and the display panel 941 are implemented as two separate components, in some embodiments the touch-sensitive surface 931 may be integrated with the display panel 941 to implement the input and output functions.
The wireless communication device 900 may also include at least one sensor 950, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, where the ambient light sensor may adjust the brightness of the display panel 941 according to the brightness of ambient light, and the proximity sensor may generate an interruption when the flip cover is closed or closed. As one of the motion sensors, the gravity acceleration sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and the direction when the mobile phone is stationary, and can be used for applications of recognizing the gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured with the wireless communication device 900 are not described in detail herein.
Audio circuitry 960, speaker 961, microphone 962 may provide an audio interface between a user and the wireless communication device 900. Audio circuit 960 may transmit the received electrical signal converted from audio data to speaker 961, where it is converted to a sound signal by speaker 961 for output; on the other hand, microphone 962 converts the collected sound signals into electrical signals, which are received by audio circuit 960 and converted into audio data, which are processed by audio data output processor 980 for transmission to, for example, another terminal via RF circuit 910 or for output to memory 920 for further processing. Audio circuitry 960 may also include an ear bud jack to provide communication of a peripheral ear bud with wireless communication device 900.
The wireless communication device 900 may facilitate user reception of requests, transmission of information, etc. via the transmission module 970 (e.g., wi-Fi module), which provides wireless broadband internet access to the user. Although the transmission module 970 is shown in the drawings, it is understood that it does not belong to the essential constitution of the wireless communication device 900, and can be omitted entirely as required within the scope of not changing the essence of the invention.
Processor 980 is a control center for wireless communication device 900, and uses various interfaces and lines to connect the various parts of the overall handset, performing various functions and processing data for wireless communication device 900 by running or executing software programs and/or modules stored in memory 920, and invoking data stored in memory 920, thereby performing overall monitoring of the wireless communication device. Optionally, processor 980 may include one or more processing cores; in some embodiments, processor 980 may integrate an application processor with a modem processor, where the application processor primarily handles operating systems, user interfaces, applications programs, and the like, and the modem processor primarily handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into the processor 980.
The wireless communication device 900 also includes a power supply 990 (e.g., a battery) that provides power to the various components, and in some embodiments, may be logically coupled to the processor 980 through a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The power source 990 may also include one or more of any components, such as a direct current or alternating current power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
In the implementation, each module may be implemented as an independent entity, or may be combined arbitrarily, and implemented as the same entity or several entities, and the implementation of each module may be referred to the foregoing method embodiment, which is not described herein again.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the various methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in a computer-readable storage medium and loaded and executed by a processor. To this end, an embodiment of the present invention provides a storage medium having stored therein a plurality of instructions capable of being loaded by a processor to perform the steps of any one of the embodiments of the transmit power detection circuit provided by the embodiment of the present invention.
Sliding the original signal according to the peak window to obtain a plurality of maximum peak positions; the original signal is composed of a plurality of continuous point data; the maximum peak position is a coordinate value of the maximum peak in the horizontal axis direction;
performing data amplification processing according to the maximum peak position to obtain amplified point data;
obtaining a plurality of maximum power value positions according to the amplified point data; the maximum power value position is the coordinate value of the maximum power value in the horizontal axis direction;
calculating and obtaining corresponding counteracting pulse sequence labels according to the maximum power value position;
and processing according to the maximum peak position, the maximum power value position and the counteraction pulse sequence label to obtain the peak-clipping signal.
Wherein the storage medium may include: read Only Memory (ROM), random access Memory (RAM, random Access Memory), magnetic or optical disk, and the like.
The steps in any embodiment of the transmit power detection circuit provided by the embodiment of the present invention can be executed due to the instructions stored in the storage medium, so that the beneficial effects that any one of the transmit power detection circuits provided by the embodiment of the present invention can achieve can be achieved, which are detailed in the previous embodiments and are not repeated herein.
The foregoing has described in detail the embodiments of the present invention, namely, the cross-domain data sharing, apparatus, wireless communication device and storage medium, and specific examples have been applied to illustrate the principles and embodiments of the present invention, and the above description of the embodiments is only for aiding in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention. Moreover, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the principles of the present invention, and such modifications and variations are also considered to be within the scope of the invention.
Claims (7)
1. A transmit power detection circuit, comprising:
a baseband processor with a DSP core; the baseband processor includes: the digital-to-analog conversion module and the analog-to-digital conversion module;
the zero intermediate frequency architecture transmitter is connected with the baseband processor and used for modulating and up-converting an analog baseband signal into a radio frequency signal;
the zero intermediate frequency architecture transmitter comprises: a first I-phase mixer, a first Q-phase mixer, a first local oscillator, a summing amplifier and a pre-amplifier;
the first local oscillator is connected with the first I-phase mixer and the first Q-phase mixer and is used for outputting a first local oscillator signal to the first I-phase mixer and outputting a second local oscillator signal to the first Q-phase mixer;
the first I-phase mixer is connected with the digital-to-analog conversion module and the first local oscillator and is used for receiving a first I-phase orthogonal signal in the analog baseband signal and carrying out up-conversion processing on the first I-phase orthogonal signal and the first local oscillator signal to obtain an I-phase up-conversion signal;
the first Q phase mixer is connected with the digital-to-analog conversion module and the first local oscillator and is used for receiving a first Q phase quadrature signal in the analog baseband signal and carrying out up-conversion processing on the first Q phase quadrature signal and the second local oscillator signal to obtain a Q phase up-conversion signal;
the summing amplifier is connected with the first I-phase mixer and the first Q-phase mixer and is used for summing the I-phase up-conversion signal and the Q-phase up-conversion signal to output the radio frequency signal;
the preamplifier is connected with the summing amplifier and is used for amplifying the radio frequency signal;
the power amplifier is connected with the zero intermediate frequency architecture transmitter and is used for amplifying the radio frequency signal so that the transmitting power of the radio frequency signal reaches a target power value;
the coupler is connected with the power amplifier and is used for coupling the amplified radio frequency signals to obtain coupled radio frequency signals:
the zero intermediate frequency architecture receiver is connected with the coupler and used for converting the coupled radio frequency signals into the analog baseband signals;
the zero intermediate frequency architecture receiver comprises: a second I-phase mixer, a second Q-phase mixer, a second local oscillator, a low noise power amplifier;
the low-noise power amplifier is connected with the coupler and is used for receiving the coupled radio frequency signal;
the second local oscillator is connected with the second I-phase mixer and the second Q-phase mixer and is used for outputting a third local oscillator signal to the second I-phase mixer and outputting a fourth local oscillator signal to the second Q-phase mixer;
the second I-phase mixer is connected with the analog-to-digital conversion module and the second local oscillator, and is used for performing down-conversion processing on the third local oscillator signal and a second I-phase quadrature signal in the coupled radio frequency signal to obtain an I-phase down-conversion signal, and sending the I-phase down-conversion signal to the analog-to-digital conversion module;
the second Q phase mixer is connected with the analog-to-digital conversion module and the second local oscillator, and is used for performing down-conversion processing on the fourth local oscillator signal and a second Q phase quadrature signal in the coupled radio frequency signal to obtain a Q phase down-conversion signal, and sending the I phase down-conversion signal to the analog-to-digital conversion module;
the baseband processor is also connected with the zero intermediate frequency architecture receiver and is used for converting the analog baseband signal into a digital baseband signal and calculating the emission power of the acquired radio frequency signal according to the digital baseband signal;
the baseband processor further includes:
the comparison module is used for comparing the calculated transmitting power with a power threshold range; the power threshold range includes a coarse tuning range and a fine tuning range;
and the processing module is used for adjusting the transmitting power of the zero intermediate frequency architecture transmitter to realize coarse adjustment if the calculated transmitting power is determined to be in the coarse adjustment range according to the comparison result, and adjusting the transmitting power of the baseband digital quantity to realize fine adjustment if the calculated transmitting power is determined to be in the fine adjustment range according to the comparison result, wherein the transmitting power is adjusted through the average value of a plurality of transmitting powers.
2. The transmission power detection circuit of claim 1, wherein,
the digital-to-analog conversion module is used for generating corresponding analog baseband signals according to the baseband digital quantity;
the analog-to-digital conversion module is used for performing analog-to-digital conversion on the radio frequency signals to obtain corresponding digital baseband signals.
3. The transmission power detection circuit of claim 1, wherein,
the analog-to-digital conversion module is used for performing analog-to-digital conversion on the radio frequency signal formed by the I-phase down-conversion signal and the Q-phase down-conversion signal to obtain a corresponding digital baseband signal.
4. A transmit power detection circuit according to any one of claims 1-3, wherein the baseband processor further comprises:
and the calculation module is used for calculating the received signal strength according to the digital baseband signal and performing inverse operation calculation according to the received signal strength to obtain the transmitting power.
5. The transmit power detection circuit of claim 4, wherein the computing module comprises:
the signal calculation unit is used for substituting the signal data of the digital baseband signal into the following formula to calculate and obtain the received signal strength of the radio frequency signal; the digital baseband signal is characterized according to the form of an I/Q signal;
the power calculation unit is used for substituting the following formula to calculate and obtain the transmitting power of the radio frequency signal according to the intensity of the received signal;
RSSI＝10lgP
wherein RSSI is the received signal strength, n is the number of sampling points in a preset time period, k is the serial number of the current sampling point, I k Q is the value of the first I phase quadrature signal in the digital baseband signal k And P is the transmitting power, and lg is a logarithmic function sign with a base number of 10, which is the value of a second Q-phase quadrature signal in the digital baseband signal.
6. A transmission power detection method, characterized by being applied to the transmission power detection circuit according to any one of claims 1 to 5, comprising the steps of:
the control coupler is used for carrying out coupling treatment on the radio frequency signal amplified by the power amplifier to obtain a coupled radio frequency signal:
controlling a zero intermediate frequency architecture receiver to convert the coupled radio frequency signals into analog baseband signals;
and the control baseband processor converts the analog baseband signal into a digital baseband signal, and calculates the transmitting power of the acquired radio frequency signal according to the digital baseband signal.
7. A wireless communication device comprising the transmit power detection circuit of any one of claims 1 to 5.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201409128Y (en) * | 2009-05-15 | 2010-02-17 | 北京朗波芯微技术有限公司 | RF (Radio Frequency) transceiver correction device used for ZIF (zero intermediate frequency ) or LMF (Low Medium Frequency) structure |
| CN101944924A (en) * | 2010-09-30 | 2011-01-12 | 东南大学 | Broadband MIMO radio frequency transceiving system for next-generation wireless communication network |
| CN106304304A (en) * | 2016-08-16 | 2017-01-04 | 江苏本能科技有限公司 | Rfid transmissions Poewr control method and device |
| CN209120192U (en) * | 2018-10-30 | 2019-07-16 | 南京比邻智能识别技术有限公司 | A kind of radio-frequency emission power self-check system |
| CN114189413A (en) * | 2021-11-30 | 2022-03-15 | 中国电子科技集团公司第五十四研究所 | Multi-carrier broadband digital predistortion device based on FPGA |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7110734B2 (en) * | 2002-09-05 | 2006-09-19 | Maxim Integrated Products Inc. | DC offset cancellation in a zero if receiver |
| US9037104B2 (en) * | 2013-02-04 | 2015-05-19 | Qualcomm, Incorporated | Receiver that reconfigures between zero intermediate frequency and direct sampling based on channel conditions |
| US11431359B2 (en) * | 2020-11-30 | 2022-08-30 | Silicon Laboratories Inc. | DC offset compensation in zero-intermediate frequency mode of a receiver |
-
2022
- 2022-07-20 CN CN202210872434.5A patent/CN115085826B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201409128Y (en) * | 2009-05-15 | 2010-02-17 | 北京朗波芯微技术有限公司 | RF (Radio Frequency) transceiver correction device used for ZIF (zero intermediate frequency ) or LMF (Low Medium Frequency) structure |
| CN101944924A (en) * | 2010-09-30 | 2011-01-12 | 东南大学 | Broadband MIMO radio frequency transceiving system for next-generation wireless communication network |
| CN106304304A (en) * | 2016-08-16 | 2017-01-04 | 江苏本能科技有限公司 | Rfid transmissions Poewr control method and device |
| CN209120192U (en) * | 2018-10-30 | 2019-07-16 | 南京比邻智能识别技术有限公司 | A kind of radio-frequency emission power self-check system |
| CN114189413A (en) * | 2021-11-30 | 2022-03-15 | 中国电子科技集团公司第五十四研究所 | Multi-carrier broadband digital predistortion device based on FPGA |
Non-Patent Citations (3)
| Title |
|---|
| DATA-Drive RF Transmit POWER calibration for Wireless Communication systems;Lianghui Xie et al.;《IEEE Wireless communications lettes》;全文 * |
| UWB系统零中频超宽带接收机设计;冯立松;《中国优秀硕士论文电子期刊》;全文 * |
| 一种适用于WIA-PA的无线网络的功率调整方法概述;刘东等;《科学与信息化》;全文 * |
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