WO2024085500A1 - Rfic, dispositif électronique comprenant un rfic, et procédé de commande de dispositif électronique - Google Patents

Rfic, dispositif électronique comprenant un rfic, et procédé de commande de dispositif électronique Download PDF

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Publication number
WO2024085500A1
WO2024085500A1 PCT/KR2023/014980 KR2023014980W WO2024085500A1 WO 2024085500 A1 WO2024085500 A1 WO 2024085500A1 KR 2023014980 W KR2023014980 W KR 2023014980W WO 2024085500 A1 WO2024085500 A1 WO 2024085500A1
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WO
WIPO (PCT)
Prior art keywords
port
coupler
signal
power
fbrx
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PCT/KR2023/014980
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English (en)
Korean (ko)
Inventor
정대출
노주석
이영민
Original Assignee
삼성전자 주식회사
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Priority claimed from KR1020220155225A external-priority patent/KR20240054126A/ko
Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Publication of WO2024085500A1 publication Critical patent/WO2024085500A1/fr

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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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter

Definitions

  • Various embodiments disclosed in this document relate to RFICs, electronic devices including RFICs, and methods of operating the electronic devices.
  • the specified power When the terminal outputs a TX signal, the specified power must be accurately output through mutual information confirmation between the terminal and the base station. Accurately outputting the specified power is important in terms of terminal power management and base station resource management.
  • the terminal controls the power of the TX signal using the FBRX (Feedback RX) path connected to RF components such as RFIC, PA (power amplifier), and coupler.
  • FBRX Field RX
  • RF components such as RFIC, PA (power amplifier), and coupler.
  • the power control operation of the TX signal of the terminal is to control the coupling power of the TX signal using the coupler included in the PA module within a specified period (e.g., 10 ms cycle) and within a specified time (e.g., 3 ms) when the TX signal is output. It is transmitted to the FBRX block of the RF transceiver through the coupler output port.
  • the terminal can control the TX signal power based on the power of the signal transmitted to the FBRX block.
  • the RF circuit included in the terminal may include an LPAMID module that combines a PA for TX signal output and a low noise amplifier (LNA) for RX signal processing.
  • LNA low noise amplifier
  • the coupler can be controlled to operate in the forward direction (e.g., from the PA to the antenna) to detect the power of the TX signal, or to operate in the reverse direction (e.g., from the antenna to the PA) to detect changes in the impedance of the antenna. there is.
  • the coupler when the coupler is activated or deactivated in the forward direction, the operation of attaching or detaching the resistor included in the LPAMID is simultaneously performed to maintain impedance. Impedance mismatch may occur due to structural problems or errors in operation settings. . This impedance mismatch generates noise, and the noise is induced into the RX block through the FBRX block, which may cause deterioration of the RX block.
  • the present invention changes the operation of the RFIC to activate the coupler and activate FBRX with the coupler set in the reverse direction (e.g., from the antenna to the PA direction), thereby reducing noise generation due to impedance mismatch. It can be prevented.
  • the RFIC includes an RF transceiver including a TX port and an FBRX port, a power amplifier (PA), a coupler, an antenna, and a processor, and the processor connects the coupler to the antenna to the TX.
  • a power amplifier PA
  • the coupler activates the FBRX port, and based on the power of the signal that couples the TX signal output from the TX port received by the FBRX port, the TX port
  • the power of the TX signal output from can be controlled.
  • the electronic device includes an RF transceiver including a TX port and an FBRX port, a power amplifier (PA), a coupler, an antenna, and an RFIC including a processor; , setting the coupler to operate in the reverse direction of the TX direction from the antenna, activating the coupler, activating the FBRX port, coupling the TX signal output from the TX port received by the FBRX port. It may include an operation of controlling the power of the TX signal output from the TX port based on the power of the ringed signal.
  • PA power amplifier
  • the RFIC of the present invention can prevent noise generation due to impedance mismatch when activating and/or deactivating a coupler.
  • the RFIC of the present invention can prevent deterioration of the RX block due to noise generation.
  • the RFIC of the present invention can minimize noise generation without changing the structure.
  • the RFIC of the present invention can minimize noise generation by changing the operation sequence in an RFIC of the same structure.
  • FIG. 1 is a block diagram of an electronic device in a network environment, according to various embodiments.
  • FIGS. 2A and 2B are block diagrams of RFICs according to various embodiments.
  • FIG. 3A may be a flowchart of an operation in which a conventional RFIC controls a coupler to measure the power of a TX signal through an FBRX port.
  • FIG. 3B may be a block diagram of an example of a conventional RFIC controlling a coupler to measure the power of a TX signal through an FBRX port.
  • Figure 3c is a diagram showing a graph of signals received at the FBRX port according to the operation of the coupler in a conventional RFIC.
  • FIG. 4A may be a flowchart of an operation in which the RFIC of the present invention controls a coupler to measure the power of a TX signal through an FBRX port according to various embodiments.
  • FIG. 4B may be a block diagram of an example in which the RFIC of the present invention according to various embodiments controls a coupler to measure the power of a TX signal through an FBRX port.
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100, according to various embodiments.
  • the electronic device 101 communicates with the electronic device 102 through a first network 198 (e.g., a short-range wireless communication network) or a second network 199. It is possible to communicate with at least one of the electronic device 104 or the server 108 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108.
  • a first network 198 e.g., a short-range wireless communication network
  • a second network 199 e.g., a long-distance wireless communication network.
  • the electronic device 101 may communicate with the electronic device 104 through the server 108.
  • the electronic device 101 includes a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or may include an antenna module 197.
  • at least one of these components eg, the connection terminal 178) may be omitted or one or more other components may be added to the electronic device 101.
  • some of these components e.g., sensor module 176, camera module 180, or antenna module 197) are integrated into one component (e.g., display module 160). It can be.
  • the processor 120 for example, executes software (e.g., program 140) to operate at least one other component (e.g., hardware or software component) of the electronic device 101 connected to the processor 120. It can be controlled and various data processing or calculations can be performed. According to one embodiment, as at least part of data processing or computation, the processor 120 stores commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132. The commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134.
  • software e.g., program 140
  • the processor 120 stores commands or data received from another component (e.g., sensor module 176 or communication module 190) in volatile memory 132.
  • the commands or data stored in the volatile memory 132 can be processed, and the resulting data can be stored in the non-volatile memory 134.
  • the processor 120 includes a main processor 121 (e.g., a central processing unit or an application processor) or an auxiliary processor 123 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor).
  • a main processor 121 e.g., a central processing unit or an application processor
  • auxiliary processor 123 e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor.
  • the electronic device 101 includes a main processor 121 and a secondary processor 123
  • the secondary processor 123 may be set to use lower power than the main processor 121 or be specialized for a designated function. You can.
  • the auxiliary processor 123 may be implemented separately from the main processor 121 or as part of it.
  • the auxiliary processor 123 may, for example, act on behalf of the main processor 121 while the main processor 121 is in an inactive (e.g., sleep) state, or while the main processor 121 is in an active (e.g., application execution) state. ), together with the main processor 121, at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) At least some of the functions or states related to can be controlled.
  • co-processor 123 e.g., image signal processor or communication processor
  • may be implemented as part of another functionally related component e.g., camera module 180 or communication module 190. there is.
  • the auxiliary processor 123 may include a hardware structure specialized for processing artificial intelligence models.
  • Artificial intelligence models can be created through machine learning. For example, such learning may be performed in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 108).
  • Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited.
  • An artificial intelligence model may include multiple artificial neural network layers.
  • Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above.
  • artificial intelligence models may additionally or alternatively include software structures.
  • the memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101. Data may include, for example, input data or output data for software (e.g., program 140) and instructions related thereto.
  • Memory 130 may include volatile memory 132 or non-volatile memory 134.
  • the program 140 may be stored as software in the memory 130 and may include, for example, an operating system 142, middleware 144, or application 146.
  • the input module 150 may receive commands or data to be used in a component of the electronic device 101 (e.g., the processor 120) from outside the electronic device 101 (e.g., a user).
  • the input module 150 may include, for example, a microphone, mouse, keyboard, keys (eg, buttons), or digital pen (eg, stylus pen).
  • the sound output module 155 may output sound signals to the outside of the electronic device 101.
  • the sound output module 155 may include, for example, a speaker or a receiver. Speakers can be used for general purposes such as multimedia playback or recording playback.
  • the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.
  • the display module 160 can visually provide information to the outside of the electronic device 101 (eg, a user).
  • the display module 160 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device.
  • the display module 160 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.
  • the audio module 170 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 101). Sound may be output through the electronic device 102 (e.g., speaker or headphone).
  • the electronic device 102 e.g., speaker or headphone
  • the sensor module 176 detects the operating state (e.g., power or temperature) of the electronic device 101 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do.
  • the sensor module 176 includes, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.
  • the interface 177 may support one or more designated protocols that can be used to connect the electronic device 101 directly or wirelessly with an external electronic device (eg, the electronic device 102).
  • the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card interface
  • audio interface audio interface
  • connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102).
  • the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 179 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 can capture still images and moving images.
  • the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 188 can manage power supplied to the electronic device 101.
  • the power management module 188 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 189 may supply power to at least one component of the electronic device 101.
  • the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.
  • Communication module 190 is configured to provide a direct (e.g., wired) communication channel or wireless communication channel between electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108). It can support establishment and communication through established communication channels. Communication module 190 operates independently of processor 120 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication.
  • processor 120 e.g., an application processor
  • the communication module 190 is a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., : LAN (local area network) communication module, or power line communication module) may be included.
  • a wireless communication module 192 e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module
  • GNSS global navigation satellite system
  • wired communication module 194 e.g., : LAN (local area network) communication module, or power line communication module
  • the corresponding communication module is a first network 198 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (e.g., legacy It may communicate with an external electronic device 104 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN).
  • a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN).
  • a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN).
  • a telecommunication network such as a cellular network, a 5G network, a next-generation communication network
  • the wireless communication module 192 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199.
  • subscriber information e.g., International Mobile Subscriber Identifier (IMSI)
  • IMSI International Mobile Subscriber Identifier
  • the wireless communication module 192 may support 5G networks after 4G networks and next-generation communication technologies, for example, NR access technology (new radio access technology).
  • NR access technology provides high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low latency). -latency communications)) can be supported.
  • the wireless communication module 192 may support high frequency bands (eg, mmWave bands), for example, to achieve high data rates.
  • the wireless communication module 192 uses various technologies to secure performance in high frequency bands, for example, beamforming, massive array multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. It can support technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna.
  • the wireless communication module 192 may support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., second network 199).
  • the wireless communication module 192 supports Peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mmTC, or U-plane latency (e.g., 164 dB or less) for realizing URLLC.
  • Peak data rate e.g., 20 Gbps or more
  • loss coverage e.g., 164 dB or less
  • U-plane latency e.g., 164 dB or less
  • the antenna module 197 may transmit or receive signals or power to or from the outside (eg, an external electronic device).
  • the antenna module 197 may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB).
  • the antenna module 197 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected to the plurality of antennas by, for example, the communication module 190. can be selected. Signals or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna.
  • other components eg, radio frequency integrated circuit (RFIC) may be additionally formed as part of the antenna module 197.
  • RFIC radio frequency integrated circuit
  • the antenna module 197 may form a mmWave antenna module.
  • a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band. can do.
  • a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., mmWave band); And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side)
  • peripheral devices e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • signal e.g. commands or data
  • commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199.
  • Each of the external electronic devices 102 or 104 may be of the same or different type as the electronic device 101.
  • all or part of the operations performed in the electronic device 101 may be executed in one or more of the external electronic devices 102, 104, or 108.
  • the electronic device 101 may perform the function or service instead of executing the function or service on its own.
  • one or more external electronic devices may be requested to perform at least part of the function or service.
  • One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 101.
  • the electronic device 101 may process the result as is or additionally and provide it as at least part of a response to the request.
  • cloud computing distributed computing, mobile edge computing (MEC), or client-server computing technology can be used.
  • the electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
  • the external electronic device 104 may include an Internet of Things (IoT) device.
  • Server 108 may be an intelligent server using machine learning and/or neural networks.
  • the external electronic device 104 or server 108 may be included in the second network 199.
  • the electronic device 101 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.
  • FIGS. 2A and 2B are block diagrams of an RFIC 200 according to various embodiments.
  • RIFC 200 may include an RF transceiver 210, LPAMID 220, antenna 230, and/or processor 240.
  • the components included in FIGS. 2A and 2B are some of the components included in the RIFC 200, and the RFIC 200 may include various other components.
  • RIFC 200 may be included in the communication module 190 of the electronic device 101.
  • the RF transceiver 210 may be a module that transmits and receives radiofrequency (RF) signals.
  • RF radiofrequency
  • the RF transceiver 210 may include a TX port 211 and/or an FBRX port 216.
  • the TX port 211 may be a port that transmits a TX signal to the outside.
  • the FBRX port 216 (feedback RX, 216) according to one embodiment may be a port that receives coupling power based on the power of an externally transmitted TX signal.
  • the FBRX port 216 may be included in the RX block (not shown) of the RF transceiver 210.
  • the RX transceiver 210 may estimate the power of a signal transmitted through the TX port 211 based on the power of the coupling signal received through the FBRX port 216.
  • the RX transceiver 210 can control the power of the TX signal to be transmitted based on the estimated power.
  • the LPAMID 220 may output a TX signal and/or process an RX signal.
  • the LPAMID 220 may be a module that integrates a power amplifier (PA) 221 that amplifies and outputs the TX signal and a low noise amplifier (LNA) that processes the RX signal.
  • PA power amplifier
  • LNA low noise amplifier
  • LPAMID (220) may include a PA (221) and/or a coupler (222).
  • the PA 221 may amplify the signal output from the TX port 211 and transmit it to the antenna 230.
  • the PA 221 may include a low noise amplifier (LNA) that processes the signal obtained from the antenna 230.
  • LNA low noise amplifier
  • the coupler 222 may change the TX signal amplified from the PA 221 into a coupling signal and transmit it to the FBRX port 216.
  • the coupler 222 may be included in the PA (221).
  • the CPL IN port 222-1 may be a port that inputs a signal output from the PA 221 to the coupler 222.
  • the CPL THROUGH port 222-2 may be a port that transmits signals input from the CPL IN port 222-1.
  • the CPL OUT port 222-3 may be a port that couples the signal input from the CPL IN port 222-1 and transmits it to the FBRX port 216.
  • the CPL ISO port 222-4 may be a port for isolating signals from the coupler 222.
  • the forward resistance 222-5 is isolated from the circuit of the coupler 222 when the switch 222-5s of the forward resistance 222-5 is opened when the coupler 222 is set to the forward direction, and the coupler 222 is set to the reverse direction. When set to , the switch 222-5s of the forward resistance 222-5 may be closed and connected to the circuit of the coupler 222.
  • the switch 222-6s of the reverse resistor 222-6 is opened and the reverse resistor 222-6 is separated from the circuit of the coupler 222, and the coupler 222 is set in the forward direction.
  • the switch 222-6s of the reverse resistor 222-6 may be closed and connected to the circuit of the coupler 222.
  • the antenna 230 may transmit a TX signal to the outside and/or receive an RX signal from the outside.
  • the antenna 230 may transmit the TX signal amplified by the PA 221 to the outside.
  • the antenna 230 may transmit an RX signal received from the outside to the PA 221 including the LNA.
  • the processor 240 may control the operation of the RF transceiver 210 and/or LPAMID 220.
  • the processor 240 may be included in the RFIC 200 and/or may be a module separate from the RFIC 200.
  • the processor 240 when included in the RFIC 200, may be included in and/or a separate module from the RF transceiver 210 and/or LPAMID 220.
  • the processor 240 may control the LPAMID 220 by determining the forward or reverse direction or activation or deactivation of the coupler 222.
  • the forward direction of the coupler 222 couples the TX signal output from the TX port 211, amplified through the PA 221, and transmitted externally through the antenna 230. ) may be the direction of motion.
  • the forward direction of the coupler 222 is such that when the coupler 222 is activated, the TX signal amplified by the PA 221 is coupled from the CPL IN port 222-1 to the CPL OUT port 222-3. , the switch 222-5s of the forward resistance 222-5 is opened, the forward switch 222-3s1 of the CPL OUT port 222-3 is closed, and the switch 222-6s of the reverse resistance 222-6 is closed. ) may be set to be closed.
  • the reverse direction of the coupler 222 may be an operating direction of the coupler 222 that detects a change in impedance of the antenna 230 based on the RX signal received from the antenna 230.
  • the coupler 222 when the coupler 222 is activated, the RX signal received from the antenna 230 is transmitted from the CPL THROUGH port 222-2 to the CPL OUT through the CPL ISO port 222-4.
  • the switch 222-5s of the forward resistor 222-5 is closed, the reverse switch 222-3s2 of the CPL OUT port 222-3 is closed, and the reverse resistor (222-5s) is closed.
  • the switch (222-6s) of 222-6) may be in an open state.
  • deactivation of the coupler 222 may be a state in which the circuit is connected so as not to transmit the coupled signal to the FBRX port 216.
  • FIG. 2A may be a diagram when the coupler 222 is deactivated.
  • the forward switch 222-3s1 of the CPL OUT port 222-3 and/or the reverse switch 222-3s2 of the CPL OUT port 222-3 is open, and the switch 222-5s of the forward resistance 222-5 and/or the switch 222-6s of the reverse resistance 222-6 may be in an open state.
  • activation of the coupler 222 may mean that the circuit is connected to transmit the coupled signal to the FBRX port 216.
  • FIG. 2B may be a diagram when the coupler 222 is activated in the forward direction.
  • the switch 222-5s of the forward resistance 222-5 is open, and the forward switch 222-3s1 of the CPL OUT port 222-3 is open. is closed, and the switch 222-6s of the reverse resistor 222-6 may be closed.
  • the switch 222-5s of the forward resistor 222-5 is closed, and the reverse switch of the CPL OUT port 222-3 is closed ( 222-3s2) is closed, and the switch 222-6s of the reverse resistor 222-6 can be opened.
  • FIG. 3A may be a flowchart of an operation in which a conventional RFIC 200 controls a coupler to measure the power of a TX signal through the FBRX port 216.
  • the RFIC 200 may perform a measurement operation with the FBRX port 216 at a specified period (e.g., 10 ms) when the Tx signal is output.
  • RFIC 200 may be in a coupler-disabled state at operation 310.
  • deactivation of the coupler 222 may be a state in which the circuit is connected so as not to transmit the coupled signal to the FBRX port 216.
  • forward switch 222-3s1 of CPL OUT port 222-3 and/or reverse switch 222-3s2 of CPL OUT port 222-3 are open and , the switch 222-5s of the forward resistance 222-5 and/or the switch 222-6s of the reverse resistance 222-6 may be in an open state.
  • the processor 240 may set the coupler forward direction in operation 320.
  • the forward direction of the coupler 222 couples the TX signal output from the TX port 211, amplified through the PA 221, and transmitted externally through the antenna 230. ) may be the direction of motion.
  • the forward direction of the coupler 222 is a forward resistance 222-5 so that the TX signal amplified in the PA 221 is coupled from the CPL IN port 222-1 to the CPL OUT port 222-3.
  • the switch 222-5s may be open, the forward switch 222-3s1 of the CPL OUT port 222-3 may be closed, and the switch 222-6s of the reverse resistor 222-6 may be closed.
  • processor 240 may activate the coupler in operation 330.
  • activation of the coupler 222 may mean that the circuit is connected to transmit the coupled signal to the FBRX port 216.
  • the switch 222-5s of the forward resistor 222-5 is opened and the forward switch 222-3s1 of the CPL OUT port 222-3 is closed. You can. Additionally, the reverse switch 222-3s2 of the CPL OUT port 222-3 may be open, and the switch 222-6s of the reverse resistor 222-6 may be closed.
  • processor 240 may activate FBRX measurements at operation 340.
  • processor 240 may activate FBRX measurements to measure the power of the coupled signal received at FBRX port 216.
  • the RF transceiver 210 outputs a TX signal through the TX port 211, and after the output signal is amplified by the PA 221, the amplified TX signal is output to the CPL IN port 222. Based on the signal input to -1), transmitted to the CPL OUT port (222-3), and coupled, the power of the TX signal can be estimated.
  • the coupled signal may be a signal coupled by approximately 20 to 25 dB relative to the power of the TX signal.
  • the processor 240 may control the TX signal in operation 350.
  • the processor 240 may control the power size of the TX signal to be output from the TX port 211 based on the estimated power of the TX signal.
  • the processor 240 may set the coupler 222 in the reverse direction after controlling the TX signal, and then deactivate the coupler 222 while setting the coupler 222 in the forward direction.
  • FIG. 3B may be a block diagram of an example in which a conventional RFIC 200 controls a coupler to measure the power of a TX signal through the FBRX port 216.
  • the conventional RFIC 200 sets the coupler 222 to the forward direction with the coupler 222 deactivated, activates the coupler 222, and then performs coupling at the FBRX port 216.
  • the power of the signal can be measured.
  • the conventional RFIC 200 includes a forward switch 222-3s1 of the CPL OUT port 222-3, a switch 222-5s of the forward resistance 222-5, and a reverse resistance 222-6.
  • the switch 222-6s open (coupler deactivated), the coupler 222 is set to the forward direction, and the forward switch 222-3s1 and the reverse resistor 222-3 of the CPL OUT port 222-3 are turned on.
  • the switch 222-6s coupled forward activation
  • the power of the forward coupled TX signal can be measured at the FBRX port 216.
  • the FBRX port 216 when the FBRX port 216 is activated to measure the power of the coupling signal, the spike noise generated at the CPL OUT port 222-3 is induced into the FBRX port 216, causing deterioration in the entire RX block. can occur.
  • Table 1 is a table related to the deterioration of the RX block that may occur in the conventional RFIC (200).
  • 3c is a diagram showing a graph of signals received at the FBRX port 216 according to the operation of the coupler 222 in the conventional RFIC 200.
  • Figure 3c is a diagram showing a graph of signals received at the FBRX port 216 in relation to the above problem.
  • Graph (a) may be a graph of a signal when the coupler 222 is forward activated.
  • Graph (b) may be a graph of a signal when the coupler 222 is changed from deactivated to activated while the coupler 222 is set to the forward direction.
  • Graph (c) may be a graph of a signal when the coupler 222 changes from the forward direction to the reverse direction.
  • Noise as shown in graph (b) occurs when the coupler 222 is activated, after the forward switch 222-3s1 of the CPL OUT port 222-3 is closed, the switch 222-6s of the reverse resistor 222-6 As is changed from the open state to the closed state, it may be a spike-like noise generated by a sudden change in impedance that occurs when connected to the reverse resistor 222-6.
  • FIG. 4A is a flowchart of an operation in which the RFIC 200 of the present invention controls a coupler to measure the power of a TX signal through the FBRX port 216 according to various embodiments.
  • the RFIC 200 may perform a measurement operation with the FBRX port 216 at a specified period (e.g., 10 ms) when the Tx signal is output.
  • RFIC 200 may be in a coupler-disabled state at operation 410.
  • deactivation of the coupler 222 may mean that the circuit is connected so as not to transmit the coupled signal to the FBRX port 216.
  • forward switch 222-3s1 of CPL OUT port 222-3 and/or reverse switch 222-3s2 of CPL OUT port 222-3 are open and , the switch 222-5s of the forward resistance 222-5 and/or the switch 222-6s of the reverse resistance 222-6 may be in an open state.
  • the processor 240 may set the coupler reverse direction in operation 420.
  • the reverse direction of the coupler 222 may be an operating direction of the coupler 222 that detects a change in impedance of the antenna 230 based on the RX signal received from the antenna 230.
  • the RX signal received from the antenna 230 is transmitted from the CPL THROUGH port 222-2 through the CPL ISO port 222-4.
  • the reverse switch 222-3s2 of the CPL OUT port 222-3 is closed and the switch 222-6s of the reverse resistor 222-6 is set to open. It may be a state.
  • processor 240 may activate the coupler in operation 430.
  • activation of the coupler 222 may mean that the circuit is connected to transmit the coupled signal to the FBRX port 216.
  • the reverse switch 222-3s2 of the CPL OUT port 222-3 is closed, and the switch 222-6s of the reverse resistor 222-6 is open. You can. Additionally, the forward switch 222-3s1 of the CPL OUT port 222-3 may be open, and the switch 222-5s of the forward resistance 222-5 may be closed.
  • the processor 240 may set the coupler forward direction in operation 440.
  • the forward direction of the coupler 222 couples the TX signal output from the TX port 211, amplified through the PA 221, and transmitted externally through the antenna 230. ) may be the direction of motion.
  • the coupler 222 in the forward direction of the coupler 222, when the coupler 222 is activated, the TX signal amplified by the PA 221 is coupled from the CPL IN port 222-1 to the CPL OUT port 222-3. ring, the switch 222-5s of the forward resistance 222-5 is opened, the forward switch 222-3s1 of the CPL OUT port 222-3 is closed, and the switch 222 of the reverse resistance 222-6 is closed. -6s) may be set to close.
  • processor 240 may activate FBRX measurements at operation 450.
  • processor 240 may activate FBRX measurements to measure the power of the coupled signal received at FBRX port 216.
  • the RF transceiver 210 outputs a TX signal through the TX port 211, and after the output signal is amplified by the PA 221, the amplified TX signal is output to the CPL IN port 222. Based on the signal input to -1) and transmitted to the CPL OUT port (222-3) through the CPL THROUGH port (222-2) and the CPL ISO port (222-4), the power of the TX signal is It can be estimated.
  • the processor 240 may set the coupler reverse direction in operation 460.
  • the reverse direction of the coupler 222 may be an operating direction of the coupler 222 that detects a change in impedance of the antenna 230 based on the RX signal received from the antenna 230.
  • the RX signal received from the antenna 230 is transmitted from the CPL THROUGH port 222-2 through the CPL ISO port 222-4.
  • the reverse switch 222-3s2 of the CPL OUT port 222-3 is closed and the switch 222-6s of the reverse resistor 222-6 is set to open. It may be a state.
  • processor 240 may deactivate the coupler in operation 470.
  • deactivation of the coupler 222 may mean that the circuit is connected so as not to transmit the coupled signal to the FBRX port 216.
  • the processor 240 may control the TX signal.
  • the processor 240 may control the power size of the TX signal to be output from the TX port 211 based on the estimated power of the TX signal.
  • FIG. 4B may be a block diagram of an example in which the RFIC 200 of the present invention according to various embodiments controls a coupler to measure the power of the TX signal through the FBRX port 216.
  • the RFIC 200 of the present invention sets the coupler 222 in the reverse direction with the coupler 222 inactive, activates the coupler 222, and then couples at the FBRX port 216.
  • the power of the ring signal can be measured.
  • the RFIC 200 of the present invention has the reverse switch 222-3s2 of the CPL OUT port 222-3 and the switch 222-6s of the reverse resistor 222-6 open (deactivated). state), the coupler 222 is set to the reverse direction, the reverse switch 222-3s2 of the CPL OUT port 222-3 is closed, and the switch 222-6s of the reverse resistor 222-6 is opened ( Coupler reverse activation), the power of the reversely coupled TX signal can be measured at the FBRX port 216.
  • the coupler 222 when the coupler 222 is activated, the CPL OUT port 222-3 and the CPL ISO port 222-4 may be able to secure about 50 dB isolation due to the design structure. Accordingly, as the switch 222-5s of the forward resistor 222-5 changes from the open state to the closed state, after being connected to the forward resistor 222-5, the power of the reversely coupled TX signal becomes CPL OUT. By being transmitted to the port 222-3, it is possible to prevent spike-like noise generated by impedance mismatch in the conventional RFIC 200 from occurring.
  • the FBRX port 216 is activated to measure the power of the coupling signal, the spiking noise generated at the CPL OUT port 222-3 is not induced in the FBRX port 216, so it is not induced in the conventional RFIC 200. Deterioration occurring throughout the RX block can be prevented.
  • Table 2 is a table related to the deterioration of the RX block that may occur in the RFIC 200 of the present invention.
  • the coupler is connected while maintaining the coupler reverse setting.
  • the coupler By activating and/or deactivating the coupler in the forward setting in the conventional RFIC 200, there is an effect of preventing deterioration of the RX block due to noise induced into the RX block.
  • An RFIC includes an RF transceiver including a TX port and an FBRX port, a power amplifier (PA), a coupler, an antenna, and a processor, and the processor couples the coupler from the antenna in the reverse direction, which is the TX direction.
  • PA power amplifier
  • the coupler activates the coupler, activate the FBRX port, and based on the power of the signal that couples the TX signal output from the TX port received by the FBRX port, TX output from the TX port
  • the power of the signal can be controlled.
  • the coupler is connected to a coupler input port, coupler throw port, coupler isolation port, coupler output port, a first resistor connected to a forward circuit in the antenna direction in the PA, and a reverse circuit. It may include a second resistor.
  • the processor in activating the coupler, connects the first resistor to the forward circuit, disconnects the second resistor from the reverse circuit, and connects the coupler input port and It may include separating the coupler output port and connecting the coupler isolation port and the coupler output port.
  • the FBRX port couples the TX signal output from the TX port and amplified by the PA through the coupler input port, the coupler throw port, the isolation port, and the output port. Ringed signals can be received.
  • the FBRX port may estimate the power of the TX signal based on the received signal and control the power of the TX signal output from the TX port based on the estimated power. there is.
  • the processor after controlling the power of the TX signal, sets the coupler to operate in the forward direction, sets the coupler to operate in the reverse direction, and sets the coupler to operate in the reverse direction.
  • the coupler can be deactivated.
  • the RFIC includes an RFIC including an RF transceiver including a TX port and an FBRX port, a power amplifier (PA), a coupler, an antenna, and a processor, wherein the processor connects the coupler to the antenna to the TX.
  • a processor connects the coupler to the antenna to the TX.
  • the coupler is connected to a coupler input port, coupler throw port, coupler isolation port, coupler output port, a first resistor connected to a forward circuit in the antenna direction in the PA, and a reverse circuit. It may include a second resistor.
  • the processor in activating the coupler, connects the first resistor to the forward circuit, disconnects the second resistor from the reverse circuit, and connects the coupler input port and It may include separating the coupler output port and connecting the coupler isolation port and the coupler output port.
  • the FBRX port couples the TX signal output from the TX port and amplified by the PA through the coupler input port, the coupler throw port, the isolation port, and the output port. Ringed signals can be received.
  • the FBRX port may estimate the power of the TX signal based on the received signal and control the power of the TX signal output from the TX port based on the estimated power. there is.
  • the processor after controlling the power of the TX signal, sets the coupler to operate in the forward direction, sets the coupler to operate in the reverse direction, and sets the coupler to operate in the reverse direction.
  • the coupler can be deactivated.
  • the electronic device includes an RF transceiver including a TX port and an FBRX port, a power amplifier (PA), a coupler, an antenna, and an RFIC including a processor, and the coupler
  • the coupler includes a coupler input port, a coupler throw port, a coupler isolation port, a coupler output port, a first resistor connected to a forward circuit in the PA toward the antenna, and a reverse direction. It may include a second resistor connected to the circuit.
  • activating the coupler includes connecting the first resistor to the forward circuit, disconnecting the second resistor from the reverse circuit, and inputting the coupler. It may include separating the port and the coupler output port and connecting the coupler isolation port and the coupler output port.
  • the TX signal output from the TX port and amplified by the PA is coupled through the coupler input port, the coupler throw port, the isolation port, and the output port. It may include an operation of receiving a signal.
  • an operation of estimating the power of the TX signal based on the received signal and an operation of controlling the power of the TX signal output from the TX port based on the estimated power may include.
  • Electronic devices In a method of operating an electronic device according to various embodiments, after controlling the power of the TX signal, setting the coupler to operate in the forward direction, setting the coupler to operate in the reverse direction, and operating the coupler in the reverse direction. It may include an operation of deactivating the coupler in a set state.
  • Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.
  • first, second, or first or second may be used simply to distinguish one component from another, and to refer to those components in other respects (e.g., importance or order) is not limited.
  • One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.
  • module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these.
  • a processor e.g., processor 120
  • the one or more instructions may include code generated by a compiler or code that can be executed by an interpreter.
  • a storage medium that can be read by a device may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves). This term refers to cases where data is stored semi-permanently in the storage medium. There is no distinction between temporary storage cases.
  • Computer program products are commodities and can be traded between sellers and buyers.
  • the computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or through an application store (e.g. Play StoreTM) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online.
  • a machine-readable storage medium e.g. compact disc read only memory (CD-ROM)
  • an application store e.g. Play StoreTM
  • two user devices e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online.
  • at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.
  • each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. there is.
  • one or more of the components or operations described above may be omitted, or one or more other components or operations may be added.
  • multiple components eg, modules or programs
  • the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component of the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transceivers (AREA)

Abstract

Selon divers modes de réalisation, un RFIC comprend : un émetteur-récepteur RF comprenant un port TX et un port FBRX ; un amplificateur de puissance (PA) ; un coupleur ; une antenne ; et un processeur, dans lequel le processeur peut régler le coupleur de sorte qu'il fonctionne dans une direction inverse, qui est une direction depuis l'antenne vers le port TX, activer le coupleur, activer le port FBRX et, sur la base de la puissance d'un signal couplé à un signal TX qui est délivré en sortie par le port TX et reçu par le port FBRX, contrôler la puissance du signal TX délivré en sortie depuis le port TX. Divers autres modes de réalisation sont également possibles.
PCT/KR2023/014980 2022-10-18 2023-09-27 Rfic, dispositif électronique comprenant un rfic, et procédé de commande de dispositif électronique WO2024085500A1 (fr)

Applications Claiming Priority (4)

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KR10-2022-0134026 2022-10-18
KR20220134026 2022-10-18
KR10-2022-0155225 2022-11-18
KR1020220155225A KR20240054126A (ko) 2022-10-18 2022-11-18 Rfic 및 rfic를 포함하는 전자 장치 및 전자 장치의 동작 방법

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040033917A (ko) * 2002-10-16 2004-04-28 엘지전자 주식회사 휴대단말기의 출력전력 제어장치 및 그 운용방법
KR20050025587A (ko) * 2002-07-05 2005-03-14 프리스케일 세미컨덕터, 인크. 이득 교정을 위한 방법 및 장치
KR100622915B1 (ko) * 2005-06-17 2006-09-13 엘지전자 주식회사 이동통신단말기의 송수신장치
KR20180096475A (ko) * 2017-02-20 2018-08-29 삼성전자주식회사 안테나 튜닝 장치 및 튜닝 방법
US20210135350A1 (en) * 2016-05-27 2021-05-06 Futurewei Technologies, Inc. Closed loop aperture tunable antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050025587A (ko) * 2002-07-05 2005-03-14 프리스케일 세미컨덕터, 인크. 이득 교정을 위한 방법 및 장치
KR20040033917A (ko) * 2002-10-16 2004-04-28 엘지전자 주식회사 휴대단말기의 출력전력 제어장치 및 그 운용방법
KR100622915B1 (ko) * 2005-06-17 2006-09-13 엘지전자 주식회사 이동통신단말기의 송수신장치
US20210135350A1 (en) * 2016-05-27 2021-05-06 Futurewei Technologies, Inc. Closed loop aperture tunable antenna
KR20180096475A (ko) * 2017-02-20 2018-08-29 삼성전자주식회사 안테나 튜닝 장치 및 튜닝 방법

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