WO2022114659A1 - Dispositif électronique, et procédé par lequel un dispositif électronique destiné à émettre un signal par l'intermédiaire de multiples antennes émet un signal de référence - Google Patents

Dispositif électronique, et procédé par lequel un dispositif électronique destiné à émettre un signal par l'intermédiaire de multiples antennes émet un signal de référence Download PDF

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Publication number
WO2022114659A1
WO2022114659A1 PCT/KR2021/016888 KR2021016888W WO2022114659A1 WO 2022114659 A1 WO2022114659 A1 WO 2022114659A1 KR 2021016888 W KR2021016888 W KR 2021016888W WO 2022114659 A1 WO2022114659 A1 WO 2022114659A1
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WO
WIPO (PCT)
Prior art keywords
antenna
electronic device
signal
transmitted
transmit
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PCT/KR2021/016888
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English (en)
Korean (ko)
Inventor
정상민
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삼성전자 주식회사
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Publication of WO2022114659A1 publication Critical patent/WO2022114659A1/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
    • H04B1/38—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
    • H04B1/401—Circuits for selecting or indicating operating mode
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—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
    • H04B1/44—Transmit/receive switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power

Definitions

  • Various embodiments of the present disclosure relate to an electronic device and a method for transmitting a reference signal in an electronic device transmitting a signal through a plurality of antennas.
  • the 5G communication system has a higher frequency band (eg, For example, implementation in the 25-60 GHz band) is being considered.
  • SA stand alone
  • NSA non-stand alone
  • the SA method may be a method using only a new radio (NR) system
  • the NSA method may be a method using an NR system together with an existing LTE system.
  • the user terminal may use the gNB of the NR system as well as the eNB of the LTE system.
  • dual connectivity A technology that enables a user terminal to enable heterogeneous communication systems may be referred to as dual connectivity.
  • a processor or data generated from the communication processor are transferred to a radio frequency integrated circuit (RFIC) and a radio frequency front end (RFFE) circuit (hereinafter, described below).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front end circuit
  • the electronic device transmits a reference signal (eg, sounding reference signal (SRS)) referenced for channel estimation by a base station (eg, eNB or gNB) of the communication network to at least one antenna through the RFFE can
  • a reference signal eg, sounding reference signal (SRS)
  • SRS sounding reference signal
  • the base station may efficiently allocate a downlink bandwidth by estimating a channel based on a reference signal transmitted from the electronic device, and may perform multi-antenna signal processing or beamforming processing.
  • the electronic device may improve data reception performance by receiving a multi-antenna signal-processed or beamforming-processed signal from the base station.
  • an electronic device supporting a method of simultaneously transmitting a plurality of signals through a plurality of antennas has a maximum power transmittable through each antenna. It may be limited compared to the maximum power of the electronic device.
  • the reference signal is transmitted with the limited power, the signal received by the base station is low, and the base station is highly likely to allocate a low modulation and coding scheme (MCS) level to the electronic device that has transmitted the reference signal. Performance (eg, throughput) may be lowered.
  • MCS modulation and coding scheme
  • an electronic device capable of transmitting a plurality of signals simultaneously through a plurality of antennas by adjusting a transmission power higher than a set value when transmitting a reference signal in an electronic device that transmits a plurality of signals through a plurality of antennas, and an electronic device that transmits a signal through a plurality of antennas may provide a method for transmitting a reference signal.
  • the electronic device may include a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and at least one RFIC connected to the at least one RFIC configured to process a transmission signal a radio frequency front-end (RFFE) circuit, comprising a plurality of antennas connected through the at least one RFFE circuit, wherein the communication processor transmits a reference signal through a first antenna among the plurality of antennas At a first time point, it is checked whether data is transmitted through a second antenna among the plurality of antennas, and as a result of the check, when data is not transmitted through the second antenna, it is set for transmission of the reference signal. It is possible to control to transmit the reference signal to the base station with the second power adjusted upward from the first power.
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and a first RFFE connected to the at least one RFIC and configured to process a transmission signal (radio frequency front-end) circuit, a second RFFE circuit connected to the at least one RFIC and configured to process a transmission signal, each connected through the first RFFE circuit to transmit a signal corresponding to at least one communication network
  • RFIC radio frequency integrated circuit
  • the processor is configured to use a first antenna of the first antenna group with a second power adjusted upward from a first power configured for transmission of the reference signal. control to transmit a first reference signal to the base station through can be controlled to do so.
  • a method of operating an electronic device includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and configured to be connected to the at least one RFIC to process a transmission signal
  • RFIC radio frequency integrated circuit
  • a method for transmitting a reference signal in an electronic device including at least one radio frequency front-end (RFFE) circuit and a plurality of antennas connected through the at least one RFFE circuit comprising: a first one of the plurality of antennas; An operation of checking whether data is transmitted through a second antenna among the plurality of antennas at a first time point when a reference signal is transmitted through an antenna, and as a result of the check, data is transmitted through the second antenna
  • the method may include controlling to transmit the reference signal to the base station with the second power adjusted upward from the first power set for the transmission of the reference signal.
  • the electronic device that simultaneously transmits a plurality of signals through a plurality of antennas may be assigned a relatively higher modulation and coding scheme (MCS) level by adjusting the transmission power higher than a set value when transmitting a reference signal. Therefore, the performance of the electronic device may be increased.
  • MCS modulation and coding scheme
  • FIG. 1 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure
  • 2A is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure
  • 2B is a block diagram of an electronic device for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure
  • 3A is a diagram illustrating wireless communication systems that provide a network of legacy communication and/or 5G communication according to various embodiments of the present disclosure
  • 3B is a diagram illustrating wireless communication systems that provide networks of legacy communication and/or 5G communication according to various embodiments of the present disclosure
  • 3C is a diagram illustrating wireless communication systems that provide networks of legacy communication and/or 5G communication according to various embodiments of the present disclosure
  • FIG. 4 is a block diagram of an electronic device according to various embodiments of the present disclosure.
  • 5A is a diagram illustrating a reference signal transmission of an electronic device according to various embodiments of the present disclosure
  • 5B is a diagram illustrating a reference signal transmission of an electronic device according to various embodiments of the present disclosure
  • FIG. 6 is a flowchart illustrating a signal transmission/reception procedure between an electronic device and a communication network according to various embodiments of the present disclosure
  • FIG. 7 is a diagram illustrating a transmission period of a reference signal according to various embodiments of the present disclosure.
  • FIG. 8 is a circuit diagram illustrating a detailed circuit of an electronic device according to various embodiments of the present disclosure.
  • FIG. 9 is a block diagram illustrating a structure of an electronic device according to various embodiments of the present disclosure.
  • FIG. 10 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure
  • FIG. 11 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure.
  • FIG. 12 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure
  • FIG. 13 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure
  • FIG. 14 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure.
  • 15 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure
  • 16 is a flowchart illustrating a method of operating an electronic device according to various embodiments of the present disclosure.
  • FIG. 1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.
  • an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 .
  • a first network 198 eg, a short-range wireless communication network
  • a second network 199 e.g., a second network 199
  • 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 , a sound 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 an antenna module 197 may be included.
  • 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 are integrated into one component (eg, display module 160 ). can be
  • the processor 120 for example, executes software (eg, a program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be stored in the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
  • software eg, a program 140
  • the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 .
  • the volatile memory 132 may be stored in the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 .
  • the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor).
  • the main processor 121 e.g, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, a neural network processing unit
  • NPU neural processing unit
  • an image signal processor e.g., a sensor hub processor, or a communication processor.
  • the main processor 121 e.g, a central processing unit or an application processor
  • a secondary processor 123 eg, a graphic processing unit, a neural network processing unit
  • NPU neural processing unit
  • an image signal processor e.g., a sensor hub processor, or a communication processor.
  • the main processor 121 e.g, a central processing unit or an application processor
  • a secondary processor 123
  • the auxiliary processor 123 is, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display module 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states.
  • the co-processor 123 eg, an image signal processor or a communication processor
  • may be implemented as part of another functionally related component eg, the camera module 180 or the communication module 190. have.
  • the auxiliary processor 123 may include a hardware structure specialized for processing an artificial intelligence model.
  • Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which artificial intelligence is performed, or may be performed through a separate server (eg, the server 108).
  • the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited
  • the artificial intelligence model may include a plurality of artificial neural network layers.
  • Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example.
  • the artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.
  • the memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ).
  • the data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto.
  • the memory 130 may include a volatile memory 132 or a 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 an application 146 .
  • the input module 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 .
  • the input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
  • the sound output module 155 may output a sound signal to the outside of the electronic device 101 .
  • the sound output module 155 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback.
  • the receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.
  • the display module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 .
  • the display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device.
  • the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.
  • the audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input module 150 , or an external electronic device (eg, a sound output module 155 ) connected directly or wirelessly with the electronic device 101 . A sound may be output through the electronic device 102 (eg, a speaker or headphones).
  • an external electronic device eg, a sound output module 155
  • a sound may be output through the electronic device 102 (eg, a speaker or headphones).
  • the sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do.
  • the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric 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, a humidity sensor, or an illuminance sensor.
  • the interface 177 may support one or more designated protocols that may be used by the electronic device 101 to directly or wirelessly connect 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
  • the 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 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense.
  • the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 188 may manage power supplied to the electronic device 101 .
  • the power management module 188 may be implemented as, for example, at least a part of 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 .
  • battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication performance through the established communication channel.
  • the communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
  • the communication module 190 is a wireless communication module 192 (eg, 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 (eg, : It may include a LAN (local area network) communication module, or a power line communication module).
  • GNSS global navigation satellite system
  • a corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
  • a first network 198 eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)
  • a second network 199 eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a WAN).
  • a telecommunication network
  • the wireless communication module 192 uses the subscriber information (eg, 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 .
  • the electronic device 101 may be identified or authenticated.
  • the wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR).
  • NR access technology includes 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)).
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low-latency
  • the wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example.
  • a high frequency band eg, mmWave band
  • the wireless communication module 192 includes various technologies for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna.
  • the wireless communication module 192 may support various requirements specified in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ).
  • the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less).
  • a peak data rate eg, 20 Gbps or more
  • loss coverage eg, 164 dB or less
  • U-plane latency for realizing URLLC
  • the antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device).
  • the antenna module 197 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
  • 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 from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna.
  • other components eg, a radio frequency integrated circuit (RFIC)
  • RFIC radio frequency integrated circuit
  • the antenna module 197 may form a mmWave antenna module.
  • the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
  • peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • the command 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 the same as or different from the electronic device 101 .
  • all or a part of operations executed in the electronic device 101 may be executed in one or more external electronic devices 102 , 104 , or 108 .
  • the electronic device 101 may perform the function or service itself instead of executing the function or service itself.
  • one or more external electronic devices may be requested to perform at least a part of the function or the service.
  • One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 .
  • the electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request.
  • cloud computing distributed computing, mobile edge computing (MEC), or client-server computing technology may 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 the server 108 may be included in the second network 199 .
  • the electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
  • the electronic device 101 includes a first communication processor 212 , a second communication processor 214 , a first radio frequency integrated circuit (RFIC) 222 , a second RFIC 224 , and a third RFIC 226 , fourth RFIC 228 , first radio frequency front end (RFFE) 232 , second RFFE 234 , first antenna module 242 , second antenna module 244 , third An antenna module 246 and antennas 248 may be included.
  • the electronic device 101 may further include a processor 120 and a memory 130 .
  • the second network 199 may include a first cellular network 292 and a second cellular network 294 .
  • the electronic device 101 may further include at least one component among the components illustrated in FIG. 1 , and the second network 199 may further include at least one other network.
  • a first communication processor 212 , a second communication processor 214 , a first RFIC 222 , a second RFIC 224 , a fourth RFIC 228 , a first RFFE 232 , and the second RFFE 234 may form at least a part of the wireless communication module 192 .
  • the fourth RFIC 228 may be omitted or may be included as a part of the third RFIC 226 .
  • the first communication processor 212 may support establishment of a communication channel of a band to be used for wireless communication with the first cellular network 292 and legacy network communication through the established communication channel.
  • the first cellular network may be a legacy network including a second generation (2G), 3G, 4G, or long term evolution (LTE) network.
  • the second communication processor 214 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among bands to be used for wireless communication with the second cellular network 294 , and a 5G network through the established communication channel communication can be supported.
  • the second cellular network 294 may be a 5G network defined by 3GPP.
  • the first communication processor 212 or the second communication processor 214 corresponds to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second cellular network 294 . It is possible to support the establishment of a communication channel, and 5G network communication through the established communication channel.
  • another designated band eg, about 6 GHz or less
  • the first communication processor 212 may transmit/receive data to and from the second communication processor 214 .
  • data classified to be transmitted over the second cellular network 294 may be changed to be transmitted over the first cellular network 292 .
  • the first communication processor 212 may receive transmission data from the second communication processor 214 .
  • the first communication processor 212 may transmit/receive data through the second communication processor 214 and the interprocessor interface 213 .
  • the interprocessor interface 213 may be implemented as, for example, a universal asynchronous receiver/transmitter (UART) (eg, high speed-UART (HS-UART) or peripheral component interconnect bus express (PCIe) interface).
  • UART universal asynchronous receiver/transmitter
  • PCIe peripheral component interconnect bus express
  • the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using, for example, a shared memory.
  • the communication processor 212 may transmit/receive various information to and from the second communication processor 214 , such as sensing information, information on output strength, and resource block (RB) allocation information.
  • RB resource block
  • the first communication processor 212 may not be directly connected to the second communication processor 214 .
  • the first communication processor 212 may transmit and receive data through the second communication processor 214 and the processor 120 (eg, an application processor).
  • the first communication processor 212 and the second communication processor 214 may transmit and receive data with the processor 120 (eg, an application processor) through the HS-UART interface or the PCIe interface, but There is no restriction on the type.
  • the first communication processor 212 and the second communication processor 214 may exchange control information and packet data information using a shared memory with the processor 120 (eg, an application processor). .
  • the first communication processor 212 and the second communication processor 214 may be implemented in a single chip or a single package. According to various embodiments, the first communication processor 212 or the second communication processor 214 may be formed in a single chip or a single package with the processor 120 , the co-processor 123 , or the communication module 190 . have.
  • the unified communication processor 260 may support both functions for communication with the first cellular network 292 and the second cellular network 294 .
  • the first RFIC 222 when transmitting, transmits a baseband signal generated by the first communication processor 212 from about 700 MHz to about 700 MHz used for the first cellular network 292 (eg, a legacy network). It can be converted to a radio frequency (RF) signal of 3 GHz.
  • RF radio frequency
  • an RF signal is obtained from a first cellular network 292 (eg, a legacy network) via an antenna (eg, a first antenna module 242), and an RFFE (eg, a first RFFE 232) It can be preprocessed through
  • the first RFIC 222 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 212 .
  • the second RFIC 224 when transmitting, uses the baseband signal generated by the first communication processor 212 or the second communication processor 214 to the second cellular network 294 (eg, a 5G network). It can be converted into an RF signal (hereinafter, 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less).
  • 5G Sub6 RF signal RF signal
  • a 5G Sub6 RF signal is obtained from a second cellular network 294 (eg, 5G network) via an antenna (eg, second antenna module 244 ), and an RFFE (eg, second RFFE 234 ) ) can be preprocessed.
  • the second RFIC 224 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding one of the first communication processor 212 or the second communication processor 214 .
  • the third RFIC 226 transmits the baseband signal generated by the second communication processor 214 to the 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second cellular network 294 (eg, 5G network). It can be converted into an RF signal (hereinafter referred to as 5G Above6 RF signal).
  • a 5G Above6 RF signal may be obtained from the second cellular network 294 (eg, 5G network) via an antenna (eg, antenna 248 ) and pre-processed via a third RFFE 236 .
  • the third RFIC 226 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 214 .
  • the third RFFE 236 may be formed as part of the third RFIC 226 .
  • the electronic device 101 may include the fourth RFIC 228 separately from or as at least a part of the third RFIC 226 .
  • the fourth RFIC 228 converts the baseband signal generated by the second communication processor 214 into an RF signal (hereinafter, IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transmitted to the third RFIC 226 .
  • the third RFIC 226 may convert the IF signal into a 5G Above6 RF signal.
  • a 5G Above6 RF signal may be received from the second cellular network 294 (eg, 5G network) via an antenna (eg, antenna 248 ) and converted to an IF signal by a third RFIC 226 .
  • the fourth RFIC 228 may convert the IF signal into a baseband signal for processing by the second communication processor 214 .
  • the first RFIC 222 and the second RFIC 224 may be implemented as at least a part of a single chip or a single package.
  • the first RFIC 222 and the second RFIC 224 in FIG. 2A or 2B may be implemented as an integrated RFIC.
  • the integrated RFIC is connected to the first RFFE 232 and the second RFFE 234 , and the integrated RFIC provides a baseband signal to a band supported by the first RFFE 232 and/or the second RFFE 234 .
  • the first RFFE 232 and the second RFFE 234 may be implemented as at least a part of a single chip or a single package.
  • at least one antenna module of the first antenna module 242 or the second antenna module 244 may be omitted or may be combined with another antenna module to process RF signals of a plurality of corresponding bands.
  • the third RFIC 226 and the antenna 248 may be disposed on the same substrate to form the third antenna module 246 .
  • the wireless communication module 192 or the processor 120 may be disposed on the first substrate (eg, main PCB).
  • the third RFIC 226 is located in a partial area (eg, the bottom surface) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 248 is located in another partial region (eg, the top surface). is disposed, the third antenna module 246 may be formed.
  • a high-frequency band eg, about 6 GHz to about 60 GHz
  • the electronic device 101 may improve the quality or speed of communication with the second cellular network 294 (eg, a 5G network).
  • the antenna 248 may be formed as an antenna array including a plurality of antenna elements that can be used for beamforming.
  • the third RFIC 226 may include, for example, as a part of the third RFFE 236 , a plurality of phase shifters 238 corresponding to the plurality of antenna elements.
  • each of the plurality of phase shifters 238 may transform the phase of a 5G Above6 RF signal to be transmitted to the outside of the electronic device 101 (eg, a base station of a 5G network) through a corresponding antenna element. .
  • each of the plurality of phase shifters 238 may convert the phase of the 5G Above6 RF signal received from the outside through a corresponding antenna element into the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 101 and the outside.
  • the second cellular network 294 may be operated independently (eg, Stand-Alone (SA)) or connected to the first cellular network 292 (eg, legacy network).
  • SA Stand-Alone
  • the 5G network may have only an access network (eg, a 5G radio access network (RAN) or a next generation RAN (NG RAN)), and may not have a core network (eg, a next generation core (NGC)).
  • the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network.
  • SA Stand-Alone
  • NG RAN next generation RAN
  • NGC next generation core
  • the electronic device 101 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network.
  • EPC evolved packed core
  • Protocol information for communication with a legacy network eg, LTE protocol information
  • protocol information for communication with a 5G network eg, New Radio (NR) protocol information
  • NR New Radio
  • the network environments 300a to 300c may include at least one of a legacy network and a 5G network.
  • the legacy network includes, for example, a 4G or LTE base station 340 (eg, eNB (eNodeB)) of the 3GPP standard supporting wireless connection with the electronic device 101 and an evolved packet (EPC) for managing 4G communication. core) 342 .
  • the 5G network for example, manages 5G communication between the electronic device 101 and a New Radio (NR) base station 350 (eg, gNB (gNodeB)) supporting wireless connection and the electronic device 101 . It may include a 5th generation core (5GC) 352.
  • NR New Radio
  • gNB gNodeB
  • 5GC 5th generation core
  • the electronic device 101 may transmit/receive a control message and user data through legacy communication and/or 5G communication.
  • the control message is, for example, a message related to at least one of security control, bearer setup, authentication, registration, or mobility management of the electronic device 101 .
  • the user data may refer to, for example, user data excluding a control message transmitted/received between the electronic device 101 and the core network 330 (eg, the EPC 342 ).
  • the electronic device 101 uses at least a part of a legacy network (eg, the LTE base station 340 and the EPC 342 ) to at least a part of a 5G network (eg: The NR base station 350 and the 5GC 352 may transmit/receive at least one of a control message or user data.
  • a legacy network eg, the LTE base station 340 and the EPC 342
  • a 5G network eg: The NR base station 350 and the 5GC 352 may transmit/receive at least one of a control message or user data.
  • network environment 300a provides wireless communication dual connectivity (DC) to LTE base station 340 and NR base station 350 , and either EPC 342 or 5GC 352 . It may include a network environment in which a control message is transmitted and received with the electronic device 101 through the core network 330 of the .
  • DC wireless communication dual connectivity
  • one of the LTE base station 340 or the NR base station 350 operates as a master node (MN) 310 and the other operates as a secondary node (SN) 320 .
  • MN master node
  • SN secondary node
  • the MN 310 may be connected to the core network 330 to transmit and receive control messages.
  • the MN 310 and the SN 320 may be connected through a network interface to transmit/receive messages related to radio resource (eg, communication channel) management with each other.
  • radio resource eg, communication channel
  • the MN 310 may be configured as the LTE base station 340
  • the SN 320 may be configured as the NR base station 350
  • the core network 330 may be configured as the EPC 342 .
  • a control message may be transmitted/received through the LTE base station 340 and the EPC 342
  • user data may be transmitted/received through at least one of the LTE base station 340 and the NR base station 350 .
  • the MN 310 may include the NR base station 350
  • the SN 320 may include the LTE base station 340
  • the core network 330 may include the 5GC 352 .
  • a control message may be transmitted/received through the NR base station 350 and the 5GC 352
  • user data may be transmitted/received through at least one of the LTE base station 340 or the NR base station 350 .
  • a 5G network may include an NR base station 350 and a 5GC 352 , and may independently transmit/receive a control message and user data to/from the electronic device 101 .
  • the legacy network and the 5G network may independently provide data transmission/reception.
  • the electronic device 101 and the EPC 342 may transmit and receive a control message and user data through the LTE base station 340 .
  • the electronic device 101 and the 5GC 352 may transmit and receive a control message and user data through the NR base station 350 .
  • the electronic device 101 may be registered with at least one of the EPC 342 and the 5GC 352 to transmit/receive a control message.
  • the EPC 342 or the 5GC 352 may interwork to manage communication of the electronic device 101 .
  • movement information of the electronic device 101 may be transmitted/received through an interface between the EPC 342 and the 5GC 352 .
  • E-UTRA new radio dual connectivity dual connectivity through the LTE base station 340 and the NR base station 350 may be referred to as E-UTRA new radio dual connectivity (EN-DC).
  • EN-DC E-UTRA new radio dual connectivity
  • one communication processor 260 and one RFIC 410 are illustrated as being connected to at least one RFFE 431 and 432, but various embodiments to be described later are not limited thereto.
  • various embodiments to be described below may include a plurality of communication processors 212, 214 and/or a plurality of RFICs 222, 224, 226, and 228 as shown in FIG. 2A or FIG. 2B in which a plurality of RFFEs ( 431 and 432) may be respectively connected.
  • FIG. 4 is a block diagram of an electronic device according to various embodiments of the present disclosure.
  • an electronic device (eg, the electronic device 101 of FIG. 1 ) according to various embodiments includes a processor 120 , a communication processor 260 , an RFIC 410 , a first RFFE 431 , and a first 2 RFEE 432 , a first antenna 441 , a second antenna 442 , a third antenna 443 , a fourth antenna 444 , a first switch 451 , or a second switch 452 .
  • the first RFFE 431 may be disposed on an upper portion within the housing of the electronic device 101
  • the second RFFE 432 may be disposed within the housing of the electronic device 101 . It may be disposed below 431, but various embodiments of the present disclosure are not limited to the arrangement position.
  • the RFIC 410 when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in the first communication network or the second communication network.
  • RF radio frequency
  • the RFIC 410 may transmit an RF signal used for the first communication network to the first antenna 441 or the third antenna 443 through the first RFFE 431 and the first switch 451 .
  • the RFIC 410 transmits an RF signal used for the first communication network or the second communication network to the second antenna 442 or the fourth antenna 444 through the second RFFE 432 and the second switch 452 .
  • the RFIC 410 transmits an RF signal corresponding to a first communication network (eg, NR) to the first antenna 441 or the third antenna 443 through the first RFFE 431 . and may transmit an RF signal corresponding to the second communication network (eg, LTE) to the second antenna 442 or the fourth antenna 444 through the second RFFE 432 .
  • a first communication network eg, NR
  • the second communication network eg, LTE
  • the RFIC 410 transmits an RF signal corresponding to a first communication network (eg, NR) or a second communication network (eg, LTE) through a first RFFE 431 to a first antenna 441 ) or a third antenna 443 , and transmits an RF signal corresponding to the same first communication network (eg, NR) or second communication network (eg, LTE) to the second antenna through the second RFFE 432 .
  • a first communication network eg, NR
  • second communication network eg, LTE
  • the transmission path transmitted from the RFIC 410 to the first antenna 441 through the first RFFE 431 and the first switch 451 is a 'first antenna transmission path (Ant Tx 1 ). ) can be referred to as '.
  • a transmission path transmitted from the RFIC 410 to the third antenna 443 through the first RFFE 431 and the first switch 451 may be referred to as a 'third antenna transmission path (Ant Tx 3)'. have.
  • the RFIC 410 when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in the first communication network or the second communication network.
  • RF radio frequency
  • the RFIC 410 transmits an RF signal used for the first communication network or the second communication network to the second antenna 442 or the fourth antenna 444 through the second RFFE 432 and the second switch 451 . ) can be transmitted.
  • the transmission path transmitted from the RFIC 410 to the second antenna 442 through the second RFFE 432 and the second switch 452 is a 'second antenna transmission path (Ant Tx 2 ). ) can be referred to as '.
  • a transmission path transmitted from the RFIC 410 to the fourth antenna 444 through the second RFFE 432 and the second switch 452 may be referred to as a 'fourth antenna transmission path (Ant Tx 4)'. have.
  • an RF signal is received from the first communication network through the first antenna 441 or the third antenna 443 , and the received RF signal is transmitted through at least one RFIC to a communication processor 260 .
  • an RF signal is received from the first communication network or the second communication network through the second antenna 442 or the fourth antenna 444 , and the received RF signal is transmitted through at least one RFIC to the communication processor 260 . can be transmitted to
  • the first communication network and the second communication network may be the same or different communication networks.
  • the first communication network may be a 5G network
  • the second communication network may be a legacy network (eg, an LTE network).
  • the first RFFE 431 is designed to be suitable for processing a signal corresponding to the 5G network
  • the second RFFE 432 processes a signal corresponding to the legacy network. It can be designed to be suitable for
  • a frequency band of a signal transmitted through the first RFFE 431 and a frequency band of a signal transmitted through the second RFFE 432 may be the same, similar, or different.
  • the frequency band of the signal transmitted through the first RFFE 431 may be the N41 band (2.6 GHz), which is the frequency band of the 5G network
  • the frequency band of the signal transmitted through the second RFFE 431 is It may be the B41 band (2.6 GHz), which is the frequency band of the LTE network.
  • the first RFFE 431 and the second RFFE 432 process the same or similar frequency band signals, but the first RFFE 431 is designed to enable signal processing suitable for the characteristics of the 5G network.
  • the second RFFE 432 may be designed to enable signal processing suitable for the characteristics of the LTE network.
  • the electronic device transmits and receives a signal through one of the first antenna 441 and the third antenna 443 through the first RFFE 431 and the first switch 451 .
  • a reference signal eg, SRS
  • Tx transmit antenna
  • Rx receive antenna Since the reference signal is transmitted through two, it may be referred to as '1T2R'.
  • the electronic device transmits and receives a signal through one of the second antenna 442 and the fourth antenna 444 through the second RFFE 432 and the second switch 452 .
  • a reference signal eg, SRS
  • Tx transmit antenna
  • Rx receive antenna Since the reference signal is transmitted through two, it may be referred to as '1T2R'.
  • the electronic device when the electronic device transmits and receives data through the first RFFE 431 and the second RFFE 432 at the same time, two transmit antennas Tx and four receive antennas Rx are used, It may be referred to as '2T4R'. Since the electronic device illustrated in FIG. 4 may operate in 1T2R or 2T4R according to various embodiments, it may be referred to as an electronic device supporting '1T2R/2T4R'.
  • the communication processor 260 transmits a reference signal (eg, a sounding reference signal (SRS)) referenced for channel estimation in a base station of a first communication network to the first RFFE circuit ( 431 ), it is possible to control transmission to at least one antenna (the first antenna 441 or the third antenna 443 ) among the plurality of antennas of the first antenna group.
  • the communication processor 260 transmits the reference signal referenced for channel estimation in the base station of the first communication network to the plurality of antennas of the second antenna group through the second RFFE circuit 432 . It may be controlled to additionally transmit to at least one of the antennas (the second antenna 442 or the fourth antenna 444 ).
  • the base station of the first communication network When the electronic device transmits a reference signal through the first antenna 441 , the second antenna 442 , the third antenna 443 , and the fourth antenna 444 , the base station of the first communication network performs the reference signal A signal may be received and channel estimation may be performed through the received reference signal.
  • the base station of the first communication network may transmit beamformed signals with respect to the first antenna 441 , the second antenna 442 , the third antenna 443 , and the fourth antenna 444 .
  • the electronic device may receive a signal transmitted from the base station of the first communication network through the first antenna 441 , the second antenna 442 , the third antenna 443 , or the fourth antenna 444 . .
  • the fourth antenna 444 is designed as an electronic device supporting '1T2R/2T4R', but according to various embodiments, the first antenna 441 , the second antenna 442 , and the third antenna 443 . , or by transmitting a reference signal to the base station of the first communication network through the fourth antenna 444 , it may operate as '1T4R'.
  • the first switch 451 and the second switch 452 are designed to be connectable, the first antenna 441, the second antenna 442, through the first RFFE 431, A reference signal can be transmitted to the third antenna 443 and the fourth antenna 444 to operate as '1T4R'.
  • one RFIC 410 is connected to two RFFEs 431 and 432 to transmit a reference signal (eg, SRS), but at least one RFIC includes three or more RFFEs.
  • a reference signal eg, SRS
  • the above-described embodiments may also be applied to various types of structures connected to and in which each RFFE is connected to at least one antenna.
  • the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) has four antennas (eg, a first antenna 511 , a second antenna 512 , and a third antenna 513 ).
  • the fourth antenna 514) may transmit a reference signal (eg, SRS).
  • the electronic device 101 amplifies a reference signal through at least one power amplifier (PA) 515 , and uses one antenna 511 and a second antenna 512 through at least one switch 516 . ), the third antenna 513, and the fourth antenna 514) may transmit the amplified reference signal.
  • PA power amplifier
  • a reference signal (eg, SRS) transmitted through each antenna (eg, the first antenna 511 , the second antenna 512 , the third antenna 513 , and the fourth antenna 514 ) of the electronic device 101 ) may be received via each antenna 521 of the base station 520 (eg, gNB).
  • SRS reference signal
  • the electronic device 101 may transmit a reference signal through a plurality of power amplifiers (eg, RFFE) as described above with reference to FIG. 4 .
  • a plurality of power amplifiers eg, RFFE
  • the electronic device 101 sets a signal transmitted to the first antenna 511 or the third antenna 513 to be processed through a first amplifier (eg, the first RFFE 431 ), and the second antenna 512 , or a signal transmitted to the fourth antenna 514 may be configured to be processed through a second amplifier (eg, the second RFFE 432 ).
  • the base station 520 receives the reference signal transmitted from the electronic device 101, and each antenna (eg, the first antenna 511, the second antenna 511, Channel estimates for the second antenna 512 , the third antenna 513 , and the fourth antenna 514 ) may be estimated.
  • the base station 520 may transmit a beamformed signal to each antenna of the electronic device 101 based on the channel estimation.
  • the base station 520 sets a modulation and coding scheme (MCS) level for an uplink signal of the electronic device 101 based on the channel estimation, and transmits the set MCS level setting information to a downlink (DCI) level.
  • control information may be included as SRS resource indicator (SRI) information and transmitted to the electronic device 101 .
  • the electronic device 101 may determine the transmission power of a physical uplink shared channel (PUSCH) based on the parameter set for power control included in the SRI.
  • PUSCH physical uplink shared channel
  • the power amplifier 515 and the switch 516 are shown as one for convenience of explanation, and a plurality of antennas (eg, a first antenna 511 , a second antenna 512 , a third antenna 513 , Alternatively, although it is illustrated as being connected to the fourth antenna 514), it will be readily understood by those skilled in the art that the present invention is not limited thereto.
  • the electronic device 101 may include components included in the electronic device 101 illustrated in FIG. 4 .
  • the base station 520 may transmit the beamformed signal through an array antenna 521 including a plurality (eg, 32) of antennas.
  • the signal transmitted from the base station 520 is transmitted to each antenna (eg, the first antenna 511 , the second antenna 512 , the third antenna 513 , or the fourth antenna 514 of the electronic device 101 ).
  • each antenna eg, 1 antenna 511 , a second antenna 512 , and a third A signal may be received in the form of a beam directed to the antenna 513 , or the fourth antenna 514 ).
  • the base station 520 when the electronic device 101 transmits a reference signal (eg, SRS) through a plurality of transmission paths, the base station 520 receives each antenna (eg, , the first antenna 511, the second antenna 512, the third antenna 513, or the fourth antenna 514) can be beamformed by checking the channel environment, and as a result, RSRP of the downlink channel (reference signal received power) and/or signal to noise ratio (SNR) may be improved. When the RSRP and/or SNR of the downlink channel is improved, a rank index (RI) or a channel quality indicator (CQI) for the corresponding electronic device may be increased.
  • the base station 520 allocates a high rank or MCS (modulation and code schemes) to the corresponding electronic device 101 based on the improved performance of the corresponding electronic device 101 . Downlink throughput can be improved.
  • the base station 520 may use a downlink reference signal for downlink channel estimation. For example, when the base station 520 transmits the downlink reference signal to the electronic device 101 , the electronic device 101 may receive the downlink reference signal transmitted from the base station 520 and perform channel estimation. The electronic device 101 may transmit the channel estimation result to the base station 520 , and the base station 520 performs downlink beamforming with reference to the channel estimation result transmitted from the electronic device 101 . can
  • the base station 520 transmits a downlink channel channel by a reference signal (eg, SRS) transmitted from the electronic device 101 .
  • a reference signal eg, SRS
  • channel estimation can be performed faster than when estimating the channel by the downlink reference signal.
  • the electronic device 101 by transmitting a UE Capability Inquiry message to the electronic device 101 in a first communication network (eg, a base station (gNB)) or a second communication network (eg, a base station (eNB)), the electronic device 101 ) of various setting information can be requested.
  • a first communication network eg, a base station (gNB)
  • a second communication network eg, a base station (eNB)
  • the first communication network eg, a base station (gNB)
  • the second communication network eg, a base station (eNB)
  • the electronic device 101 receives a UE Capability Inquiry message from the first communication network or the second communication network, and sends a UE Capability Information message to a first communication network (eg, a base station (gNB)) or a second communication network in response thereto. to a communication network (eg, a base station (eNB)).
  • a first communication network eg, a base station (gNB)
  • a second communication network eg, a base station (eNB)
  • information related to the reception antenna of the electronic device 101 may be included in the UE Capability Information message, such as 'supportedSRS-TxPortSwitch t1r4' or 'supportedSRS-TxPortSwitch t2r4', according to the contents of the UE Capability Inquiry message. have.
  • a first communication network eg, a base station (gNB)
  • a second communication network eg, a base station (eNB)
  • a reference signal eg, SRS
  • a first communication network eg, a base station (gNB)
  • gNB base station
  • eNB base station
  • FIG. 6 is a flowchart illustrating a signal transmission/reception procedure between an electronic device and a communication network according to various embodiments of the present disclosure
  • the electronic device 101 may establish an RRC connection with a first communication network (eg, a base station (gNB)) 600 through a random access channel (RACH) procedure.
  • a first communication network eg, a base station (gNB)
  • RACH random access channel
  • the first communication network 600 may transmit an RRC Reconfiguration message to the electronic device 101 .
  • the first communication network 600 may transmit an RRC Reconfiguration message in response to the RRC Request message transmitted by the electronic device 101 .
  • information on a time point at which the electronic device 101 transmits a reference signal (eg, SRS) for each antenna may be included as shown in Table 1 below.
  • the duration of SRS transmission may be determined by an allocated symbol.
  • the first SRS is set to be transmitted in the 17th slot while transmitting once every 20 slots
  • the second SRS is set to transmit in the 7th slot while transmitting once every 20 slots
  • the third SRS is transmitted once every 20 slots It is set to transmit in the 13th slot
  • the fourth SRS is transmitted once every 20 slots and is set to be transmitted in the third slot.
  • the electronic device The 101 may transmit 4 SRSs at different times through each antenna in every 20 slots according to the RRC Reconfiguration setting.
  • the size of the one slot may be determined by subcarrier spacing (SCS).
  • SCS subcarrier spacing
  • the time interval of one slot may be 0.5 ms
  • the time interval of 20 slots may be 10 ms.
  • the electronic device 101 may repeatedly transmit the SRS at different times through each antenna every 10 ms period.
  • the electronic device 101 may transmit an RRC Reconfiguration Complete message to the first communication network 600 .
  • the electronic device 101 and the first communication network 600 may complete RRC connection establishment.
  • the communication processor 260 and/or the RFIC 410 transmits the reference signal (eg, SRS) received from the first communication network 600 as described above. Based on information on A reference signal may be transmitted at different times.
  • the reference signal eg, SRS
  • a set number of SRSs may be transmitted for every set SRS transmission period (eg, 10 ms, 20 ms, 40 ms, or 80 ms).
  • set SRS transmission period eg, 10 ms, 20 ms, 40 ms, or 80 ms.
  • every 20 slots eg, 10 ms, 20 ms, 40 ms, or 80 ms
  • four SRSs can be transmitted at different times through each antenna.
  • the first SRS is transmitted through the first antenna 441 (RX0), and in the 7th slot, the second SRS is transmitted through the second antenna 442 (RX1).
  • the third SRS may be transmitted through the third antenna 443 (RX2), and in the third slot, the fourth SRS may be transmitted through the fourth antenna 444 (RX3).
  • every SRS transmission period (eg, 10 ms, 20 ms, 40 ms, or 80 ms) in 20 slots (eg, 10 ms) 4 SRS can be transmitted at different times through each antenna.
  • the electronic device 101 may transmit the first SRS through the first antenna 441 (RX0) and transmit the second SRS through the second antenna 442 (RX1) at a first time point.
  • the electronic device 101 may transmit the third SRS through the third antenna 443 (RX2) and transmit the fourth SRS through the fourth antenna 444 (RX3) at the second time point.
  • the two antennas for transmitting the SRS at the first time point and the two antennas for transmitting the SRS at the second time point may be configured by combining other antennas as well as the combination of the antennas.
  • the electronic device 101 may transmit the first SRS through the first antenna 441 (RX0) and transmit the fourth SRS through the fourth antenna 444 (RX3) at a first time point.
  • the electronic device 101 may transmit the third SRS through the third antenna 443 (RX2) and transmit the second SRS through the second antenna 442 (RX1) at the second time point.
  • the reference signal is a sounding reference signal (SRS) used for multi-antenna signal processing (eg, multiple-input multiple-output (MIMO) or beamforming) through uplink channel state measurement. ), but is not limited thereto.
  • SRS sounding reference signal
  • MIMO multiple-input multiple-output
  • DM-RS uplink demodulation reference
  • the electronic device 101 includes an RFIC 410 , a first RFFE 811 , a second RFFE 821 , a filter 812 , a first switch 813 (eg, SP3T or SP4T), It may include a second switch 823 , a first antenna 831 , a second antenna 832 , a third antenna 833 , a fourth antenna 834 , and a diplexer 840 .
  • the electronic device 101 illustrated in FIG. 8 may operate as '1T2R', '1T4R', or '2T4R'.
  • the RFIC 410 when transmitting, transmits a baseband signal generated by the communication processor 260 to a radio frequency (RF) signal used in the first communication network or the second communication network.
  • RF radio frequency
  • the RFIC 410 may transmit an RF signal used for the first communication network to the first antenna 831 or the third antenna 833 through the first RFFE 811 and the first switch 813 .
  • the RFIC 410 transmits the RF signal used in the first communication network to the first RFFE 811 and the first switch 813 .
  • the second antenna 832 or the third antenna 833 may be transmitted to the second antenna 832 or the third antenna 833 through the second switch 823 .
  • the RFIC 410 transmits an RF signal used for the first communication network or the second communication network to the second antenna 832 or the fourth antenna 834 through the second RFFE 821 and the second switch 823 . can be transmitted
  • At least one component may be added between the first RFFE 811 and the first switch 813 , and for example, the filter 812 is an NR It may be a notch filter for preventing the band transmission signal from affecting the WIFI band signal (eg, 2.4 GHz).
  • a diplexer 840 may be added between the second switch 823 and the second antenna 832 , and the diplexer 840 may process Mid/High band/Ultra High band signals. have.
  • the filter 812 and/or the diplexer 840 in FIG. 8 may be omitted or replaced with other components.
  • each antenna eg, a first antenna 831 , a first Since the transmission paths to the second antenna 832 , the third antenna 833 , or the fourth antenna 834 are different, path loss may appear differently.
  • the path loss may be relatively larger.
  • the fourth antenna 834 may have a longer transmission path from the second RFFE 821 than the second antenna 832 , so that the path loss may be relatively larger.
  • the first antenna 831 and the second antenna 832 may be used as a transmitting antenna (Tx Ant) for 2T4R, and may also be used as a receiving antenna (Rx Ant). .
  • the first antenna 831 and the second antenna 832 may be referred to as a main antenna.
  • the third antenna 833 and the fourth antenna 834 may be used as reception antennas Rx Ant for 2T4R, and may be referred to as sub antennas.
  • the sub antennas (eg, the third antenna 833 and the fourth antenna 834) have a path loss compared to the main antennas (eg, the first antenna 831 and the second antenna 832). This could be bigger.
  • the transmission path transmitted from the first RFFE 811 to the third antenna 833 is not the main transmission path.
  • a path loss of a certain value (eg, about 3 dB) may occur more than the transmission path.
  • the transmission path transmitted from the second RFFE 821 to the fourth antenna 834 is not the main transmission path, it has a predetermined value (eg, about 3 dB) compared to the transmission path transmitted to the second antenna 832 . Further losses may occur.
  • each of the antennas (eg, the first antenna 831 , the second The power loss corresponding to the transmission path up to the second antenna 832 , the third antenna 833 , or the fourth antenna 834 ) is referred to as 'Tx path loss' or 'path loss (PL). )', but the transmission path loss is not limited to the transmission path.
  • FIGS. 10, 11, 12, 13, 14, 15, and 16 are flowcharts for explaining a method of operating an electronic device according to various embodiments of the present disclosure.
  • the operations of FIGS. 10, 11, 12, 13, 14, 15, and 16, which will be described later, may be applied to the electronic device of any one of FIGS. 4, 8, or 9 described above.
  • Embodiments to which '1T4R' is applied in the embodiments to be described below may be equally or similarly applied to '1T2R'.
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of RFICs and at least one radio frequency front-end (RFFE) (eg, 431, 432 of FIG. 4, or 811, 812 of FIG. 8) are connected through a circuit to transmit a signal corresponding to at least one communication network antennas (eg, 441 , 442 , 443 , 444 of FIG. 4 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • the antenna-related information may include information indicating that the electronic device supports one transmit antenna and four receive antennas.
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t1r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • the electronic device 101 may transmit a reference signal (eg, SRS) through one transmit antenna in a state set to '1T4R'.
  • the electronic device 101 eg, the communication processor 260 of the electronic device transmits a first reference signal (eg, SRS) through a first antenna. It can be checked whether data is transmitted through the second antenna at the time point.
  • a first reference signal eg, SRS
  • the first power is adjusted upward from the first power set for transmission of the reference signal.
  • a reference signal may be transmitted through the antenna.
  • the first antenna may be transmitted with power (eg, 23 dBm) greater than 20 dBm, which is the maximum transmission power set in the PCC transmitted through .
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of RFICs and at least one radio frequency front-end (RFFE) (eg, 431, 432 of FIG. 4, or 811, 812 of FIG. 8) are connected through a circuit to transmit a signal corresponding to at least one communication network antennas (eg, 441 , 442 , 443 , 444 of FIG. 4 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • the first antenna group of the electronic device includes two antennas (eg, the first antenna 831 and the third antenna 833), and the second antenna group includes two antennas (eg, the first antenna 831 and the third antenna 833).
  • the antenna-related information may include information indicating that the electronic device supports two transmit antennas and four receive antennas. .
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t2r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • a reference signal eg, SRS
  • the electronic device may check an SRS-related setting in operation 1110 .
  • the electronic device may confirm that the SRS-related setting is set to '2T4R', and may identify information on when to transmit four SRSs based on information received from the base station.
  • the electronic device 101 transmits a reference signal (eg, SRS) through the first antenna of the first antenna group at a first time point.
  • a reference signal eg, SRS
  • the electronic device uses a third power lower than the second power (eg, a third power lower than the first power) for the second reference through the second antenna of the second antenna group.
  • signal can be transmitted.
  • a main antenna and a sub antenna may be combined to transmit the reference signals.
  • the electronic device 101 transmits a first reference signal through a first antenna 831 that is a main antenna among antennas connected to the first RFFE 811 at a first time point, and , at the same time, it is possible to control to transmit the second reference signal through the fourth antenna 834 that is a sub-antenna among the antennas connected to the second RFFE 821 .
  • the power of the first reference signal transmitted through the first antenna 831 is adjusted upward to a second power greater than the preset first power and transmitted, and the first reference signal transmitted through the fourth antenna 834 is transmitted.
  • the power of the second reference signal may be controlled to be transmitted with a third power lower than the second power.
  • the electronic device 101 transmits a third reference signal through a second antenna 832 that is a main antenna among antennas connected to the second RFFE 821 at a second time point after the first time point, and , it is possible to control to transmit the fourth reference signal through the third antenna 833 that is a sub-antenna among the antennas connected to the first RFFE 811 at the same time.
  • the power of the third reference signal transmitted through the second antenna 832 is adjusted upward to a second power greater than the preset first power and transmitted, and the second power transmitted through the third antenna 833 is transmitted.
  • the power of the reference signal may be controlled to be transmitted with a third power lower than the second power.
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of antennas (eg, in FIG. 4 ) are connected to the RFIC and at least one radio frequency front-end (RFFE) 431, 432, 811, or 812 circuit to transmit a signal corresponding to at least one communication network. 441 , 442 , 443 , 444 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • the antenna-related information may include information indicating that the electronic device supports one transmit antenna and four receive antennas.
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t1r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • the electronic device 101 may transmit a reference signal (eg, SRS) to one transmit antenna at a time set in a state set to '1T4R'.
  • a reference signal eg, SRS
  • the electronic device 101 may activate uplink carrier aggregation (CA) in operation 1210 .
  • the CA may collectively refer to methods capable of providing a high data rate by transmitting data through a plurality of component carriers (CCs).
  • the electronic device eg, the electronic device 101 of FIG. 1
  • receives one eg, 20 MHz
  • a plurality of frequency bandwidths eg, 80 MHz
  • all allocable bandwidths eg, 100 MHz
  • the electronic device 101 may provide a high data rate by transmitting data by integrating a plurality of bandwidths.
  • each CC may be referred to as a cell
  • one CC may be referred to as a primary CC (Pcell or SpCell) or PCC
  • other CCs may be referred to as secondary CCs (SCells) or SCCs.
  • the base station can effectively distribute the load to the plurality of electronic devices within the coverage of the base station by enabling the electronic device requiring a higher data rate to operate by activating a larger number of CCs.
  • the electronic device 101 may control to transmit a signal corresponding to the PCC through the first antenna and transmit the signal corresponding to the SCC through the second antenna, but is not limited thereto.
  • the electronic device 101 may control to transmit a signal corresponding to the PCC and at least a portion of the signal corresponding to the SCC together through one antenna (eg, the first antenna).
  • one antenna eg, the first antenna
  • the signal corresponding to the PCC and the signal corresponding to the first SCC are transmitted through the first antenna
  • the signal corresponding to the second SCC and the signal corresponding to the third SCC are transmitted through the second antenna.
  • the electronic device may check the SRS setting related to the activated CA in operation 1220 .
  • the electronic device 101 may be configured to transmit SRS through PCC and SCC, or may be configured to transmit SRS only through PCC.
  • the electronic device may increase the SRS transmission power from the set power.
  • the transmit power of the antenna may not be limited because the signal is not transmitted in the SCC band during the time the SRS is transmitted in the PCC band.
  • the maximum transmit power for transmitting the PCC is limited to 20 dBm and the maximum transmit power for transmitting the SCC is limited to 20 dBm.
  • the first antenna for transmitting PCC may be controlled to transmit SRS from 20 dBm to 23 dBm adjusted upward.
  • the electronic device may transmit the SRS with the set power in operation 1250 .
  • the SRS transmit power may be adjusted upward from the limited transmit power.
  • the base station may allocate a relatively higher MSC level to the electronic device 101 as the electronic device receives the transmitted SRS by adjusting the SRS transmission power up by performing operation 1240 .
  • the electronic device 101 may transmit relatively more data based on the higher MSC level allocated from the base station.
  • the electronic device may control to transmit the SRS with a preset power.
  • the electronic device 101 transmits a signal corresponding to the PCC to the first antenna through a physical uplink shared channel (PUSCH) as the uplink CA is activated, and simultaneously to the second antenna.
  • PUSCH physical uplink shared channel
  • a signal corresponding to the SCC may be transmitted through the PUSCH.
  • the electronic device 101 may transmit a signal corresponding to PCC through the first antenna based on the maximum transmit power of 20 dBm and simultaneously transmit a signal corresponding to the SCC through the second antenna based on the maximum transmit power of 20 dBm. have.
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of RFICs and at least one radio frequency front-end (RFFE) (eg, 431, 432 of FIG. 4, or 811, 812 of FIG. 8) are connected through a circuit to transmit a signal corresponding to at least one communication network antennas (eg, 441 , 442 , 443 , 444 of FIG. 4 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • the antenna-related information may include information indicating that the electronic device supports one transmit antenna and four receive antennas.
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t1r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • the electronic device 101 may transmit a reference signal (eg, SRS) to one transmit antenna at a time set in a state set to '1T4R'.
  • a reference signal eg, SRS
  • the electronic device 101 may operate with Tx diversity through a plurality of antennas in operation 1310 .
  • the electronic device may check the SRS related setting while operating with the Tx diversity.
  • the electronic device may upwardly adjust the SRS transmission power from the set power.
  • the electronic device 101 operates with Tx diversity through a plurality of antennas, if the SRS is set to '1T4R' and operates, the SRS may be transmitted only through the main antenna during SRS transmission. For example, while the SRS is transmitted through the primary antenna, since the other antenna does not transmit a signal, the transmit power of the antenna may not be controlled.
  • the electronic device 101 may assume that the maximum transmit power of the first antenna is limited to 20 dBm and the maximum transmit power of the second antenna is limited to 20 dBm among the plurality of antennas operating with Tx diversity.
  • SRS transmission is set to '1T4R', SRS is transmitted only for the first antenna, and the first antenna for transmitting the SRS is adjusted upward by an offset (eg, 3 dB) set from 20 dBm to 23 dBm. It can be controlled to transmit SRS.
  • an offset eg, 3 dB
  • the electronic device may transmit the SRS with the set power in operation 1350 .
  • the transmit power of the SRS is set offset (eg, It can be transmitted by adjusting it upward by 3 dB).
  • the base station may allocate a relatively higher MSC level to the electronic device 101 as the base station receives the SRS transmitted by adjusting the power upward.
  • the electronic device 101 may transmit relatively more data based on the higher MSC level allocated from the base station.
  • the electronic device when SRS is not set to '1T4R' in operation 1330 (eg, when SRS is not set) (operation 1330 - NO), transmits data with power set according to Tx diversity.
  • the electronic device 101 may transmit the first transmission signal Tx0 and the second transmission signal Tx1 to the first antenna and through the second antenna, respectively, according to the Tx diversity operation, , a transmission signal to be transmitted may be transmitted including each PUSCH.
  • the electronic device 101 transmits the first transmission signal Tx0 (eg, PUSCH) through the first antenna based on 20 dBm, which is the maximum transmission power P Tx0 set for the first transmission signal,
  • the second transmission signal Tx1 (eg, PUSCH) may be transmitted through the second antenna based on 20 dBm, which is the maximum transmission power P Tx1 set for the second transmission signal.
  • the operation described with reference to FIG. 13 may be implemented as shown in Table 2 below.
  • the electronic device 101 may transmit data through a set slot, and one slot may include 14 symbols.
  • data corresponding to a physical uplink shared channel (PUSCH) is transmitted in symbols 0, 1, 2, 4, 5, 6, 7, 8, 9, 11, and 12.
  • PUSCH physical uplink shared channel
  • DMRS demodulation reference signal
  • the electronic device operates with Tx diversity through a plurality of antennas (eg, the first antenna and the second antenna)
  • the maximum power (eg, Tx0, Tx1) of each transmission signal (eg, Tx0, Tx1) transmitted through each antenna P Tx0 , P Tx1 ) may be set to 20 dBm, respectively.
  • an SRS may be transmitted on symbol 13.
  • the SRS may be transmitted through the first antenna instead of the PUSCH as the first transmission signal Tx0, and in this case, the second transmission signal Tx1 may not be transmitted.
  • the maximum transmission power may be reset to 23 dBm, which is higher than the preset maximum power of 20 dBm for the first transmission signal.
  • the electronic device 101 may transmit the SRS based on the up-adjusted maximum transmission power of 23 dBm.
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of RFICs and at least one radio frequency front-end (RFFE) (eg, 431, 432 of FIG. 4, or 811, 812 of FIG. 8) are connected through a circuit to transmit a signal corresponding to at least one communication network antennas (eg, 441 , 442 , 443 , 444 of FIG. 4 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • the first antenna group of the electronic device includes two antennas (eg, the first antenna 831 and the third antenna 833), and the second antenna group includes two antennas (eg, the first antenna 831 and the third antenna 833).
  • the antenna-related information may include information indicating that the electronic device supports two transmit antennas and four receive antennas. .
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t2r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • a reference signal eg, SRS
  • the electronic device 101 may simultaneously transmit reference signals (eg, SRS) through two antennas at a time set in a state set to '2T4R'.
  • the electronic device 101 may operate in UL-MIMO through a plurality of antennas in operation 1410 .
  • the electronic device may check the SRS-related configuration while operating in the UL-MIMO.
  • the first set for transmission of the reference signal It is possible to control the transmission of the first reference signal through the first antenna of the first antenna group with the second power adjusted upward from the power.
  • the electronic device may control to transmit a second reference signal through a second antenna of a second antenna group with a third power lower than the second power at the first time point.
  • the electronic device 101 operates in UL-MIMO through a plurality of antennas, if the SRS is set to '2T4R' and operates, the SRS may be simultaneously transmitted through the first antenna and the second antenna during SRS transmission. For example, the electronic device may transmit the SRS as shown in Table 3 below.
  • the electronic device 101 may transmit data through a set slot, and one slot may include 14 symbols.
  • data corresponding to a physical uplink shared channel (PUSCH) may be transmitted to symbols 0, 1, 2, 4, 5, 7, 8, 9, 11, and 12.
  • Data corresponding to a demodulation reference signal (DMRS) may be transmitted to symbols 3 and 10.
  • SRS may be transmitted to symbols 6 and 13.
  • the SRS may be simultaneously transmitted through the first antenna and the second antenna.
  • the first antenna 831 eg, main antenna
  • the third antenna 833 eg, sub-antenna
  • the SRS may be transmitted, and the SRS may be transmitted to the second antenna 832 (eg, main antenna) and the fourth antenna 834 (eg, sub-antenna) through the second RFFE 821 .
  • the third antenna 833 and the fourth antenna 834 are sub antennas rather than the main antenna, they may not be used as transmit antennas.
  • the third antenna 833 and the fourth antenna 834 have a path loss (PL) of a constant value (eg, 3 dB) may be added to reduce the transmit power output through the actual antenna.
  • PL path loss
  • the maximum transmit power of each main antenna may be set to 20 dBm according to UL-MIMO operation.
  • the SRS maximum transmission power of the main antenna may be set to increase by simultaneously transmitting the SRS by combining the main antenna and the sub antenna. For example, as shown in Table 4 below, the maximum SRS transmit power of the main antenna may be adjusted higher than a set value, and the SRS maximum transmit power of a concurrently transmitted sub-antenna may be adjusted further down than the set value.
  • the maximum transmit power of the SRS transmitted through the first antenna 831 is greater than the value set at 20 dBm, which is the maximum transmit power P Tx0 set in response to the first transmit signal Tx0. It may be set to an upwardly adjusted 22 dBm, and the maximum transmit power of the SRS transmitted through the fourth antenna 834, which is a sub-antenna, is set in response to the second transmit signal Tx1 .
  • the SRS may be simultaneously transmitted through the second antenna 832 as the main antenna and the third antenna 833 as the sub antenna.
  • the maximum transmit power of the SRS transmitted through the second antenna 832 is greater than the value set at 20 dBm, which is the maximum transmit power P Tx1 set in response to the second transmit signal Tx1. It may be set to an upwardly adjusted 22 dBm, and the maximum transmit power of the SRS transmitted through the third antenna 833, which is a sub-antenna, is set in response to the first transmit signal ( Tx0 ). It may be set to 16 dBm adjusted further down than the set value.
  • throughput may be increased as shown in Table 5 below.
  • the electronic device may transmit the SRS with the increased power.
  • the base station may allocate a relatively higher MCS level based on the increased SNR.
  • the electronic device may increase the data rate by transmitting data by the higher MCS level assignment.
  • each antenna A setting value of an antenna impedance tuner (AIT) or an antenna impedance tuning circuit set for ? may be reset.
  • the set value of the antenna impedance tuner may be stored in the communication processor (CP) 260 in the form of a code.
  • the electronic device 101 may change the resonance characteristic (eg, the resonance frequency of the antenna) of the connected antenna according to a change in an on/off state of a switch included in the antenna impedance tuner.
  • a combination of on/off states of the switch may be referred to as an antenna setting, and depending on the antenna setting, an antenna resonance characteristic may be changed or an antenna efficiency of an antenna may be changed.
  • the setting code of the antenna impedance tuner may be changed as shown in Table 6 below.
  • a first transmission signal Tx0 and a second transmission signal Tx0 with respect to the first antenna 831 and the second antenna 832 are transmitted.
  • the antenna impedance tuner may be set with a code (eg, code #2) that allows the signal Tx1 to have maximum efficiency at the same time.
  • a code eg, an SRS configured to adjust the maximum transmission power upward for the first antenna 831 to have maximum efficiency (eg, , code #1) to set the antenna impedance tuner.
  • a code eg, code #3
  • the maximum transmission power when the MCS level is allocated by increasing the maximum transmission power for the SRS, when the PUSCH data is transmitted, the maximum transmission power may be lowered again.
  • a block error rate (BLER) may increase due to the high MCS level allocated according to the SRS, and thus performance may be further deteriorated.
  • the BLER of the uplink may occur when the transmission quality is deteriorated and the error vector magnitude (EVM) is lowered, and the possibility that the EVM is deteriorated due to the deterioration of the transmit power in the same modulation order is low.
  • EVM error vector magnitude
  • UL BLER when a relatively high MCS level is allocated by increasing the maximum transmission power for the SRS, UL BLER may occur and performance degradation may occur.
  • the average MCS level for a recent predetermined time corresponds to a value that causes a change in the modulation order, it is possible to control not to increase the maximum transmit power for the SRS.
  • the table for the MCS level may be defined as shown in ⁇ Table 7>.
  • the electronic device is an MCS index in which a modulation order (MO) is increased according to an increase in the MCS level due to an increase in the maximum transmit power for the SRS (eg, the MCS index).
  • the MCS index which is the boundary at which the modulation order is changed, is 4, 10, 19
  • operation 1430 when the SRS-related setting is not set to '2T4R' (eg, when SRS is not set) (operation 1430 - NO), in operation 1460 UL-MIMO It can be controlled to transmit data with power set according to the operation.
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of antennas (eg, in FIG. 4 ) are connected to the RFIC and at least one radio frequency front-end (RFFE) 431, 432, 811, or 812 circuit to transmit a signal corresponding to at least one communication network. 441 , 442 , 443 , 444 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • information indicating that the electronic device supports two transmit antennas and four receive antennas may be included.
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t2r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • the electronic device 101 may transmit a reference signal (eg, SRS) at a time set in a state set to '2T4R'.
  • the electronic device 101 may operate in UL-MIMO through a plurality of antennas in operation 1510 .
  • the electronic device configures the TDD slot (eg, uplink slot, downlink slot) in operation 1520 can be checked
  • the electronic device determines the reference signal in operation 1540 It is possible to control to transmit the first reference signal through the first antenna with the second power adjusted upward from the first power set for transmission.
  • the electronic device may control not to transmit a signal through the second antenna in the corresponding slot.
  • the electronic device when the electronic device does not correspond to the time point at which the first reference signal of the first antenna is transmitted (operation 1530 - NO), the electronic device operates in UL-MIMO through the first antenna and the second antenna It can be controlled to transmit PUSCH data.
  • the slot format of data transmitted and received through the respective antennas may be set to be the same or different.
  • the electronic device 101 may receive the slot format according to the TDD operation from the base station.
  • the electronic device 101 may reconfigure the slot format according to the TDD operation and transmit it to the base station.
  • slots 0, 1, and 2 transmit downlink signals through the first and second antennas.
  • can receive Slots 3 and 4 may be configured to transmit uplink signals.
  • the electronic device may transmit the SRS through the second antenna as the second transmission signal Tx1 in slot 3, and may transmit the SRS through the first antenna as the first transmission signal Tx0 in slot 4 .
  • the electronic device may set the slot so that the first transmission signal Tx0 is not transmitted through the first antenna.
  • the electronic device when the electronic device transmits the SRS through the first antenna in slot 4, the electronic device may set the slot so that the second transmission signal Tx1 is not transmitted through the second antenna.
  • the slot configuration may be implemented such that the base station sets and transmits the configuration information to the electronic device 101 or sets the electronic device 101 and transmits the configuration information to the base station.
  • the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and each of the at least one A plurality of RFICs and at least one radio frequency front-end (RFFE) (eg, 431, 432 of FIG. 4, or 811, 812 of FIG. 8) are connected through a circuit to transmit a signal corresponding to at least one communication network antennas (eg, 441 , 442 , 443 , 444 of FIG. 4 , or 831 , 832 , 833 , 834 of FIG. 8 ).
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the electronic device 101 may control to transmit antenna-related information to the base station of the first communication network.
  • information indicating that the electronic device supports two transmit antennas and four receive antennas may be included.
  • the antenna-related information may be transmitted by being included in the UE Capability Information message.
  • the UE Capability Information message may include information related to the reception antenna of the electronic device 101 according to the contents of the UE Capability Inquiry message, such as 'supportedSRS-TxPortSwitch t2r4'.
  • the electronic device may receive information related to a transmission time of a reference signal (eg, SRS) through each antenna from the base station.
  • the electronic device 101 may transmit a reference signal (eg, SRS) at a time set in a state set to '2T4R'.
  • the electronic device 101 may operate in UL-MIMO through a plurality of antennas in operation 1610 .
  • the electronic device configures a TDD slot (eg, an uplink slot, a downlink slot) in operation 1620 can be checked
  • the reference signal is It is possible to control to transmit the first reference signal through the first antenna with the second power adjusted upward from the first power set for transmission.
  • the electronic device may control to receive downlink data through the second antenna in the corresponding slot.
  • the electronic device when the electronic device does not correspond to the time point at which the first reference signal of the first antenna is transmitted (operation 1630 - NO), the electronic device operates in UL-MIMO through the first antenna and the second antenna It can be controlled to transmit PUSCH data.
  • the slot format of data transmitted and received through the respective antennas may be set to be the same or different.
  • the electronic device 101 may receive the slot format according to the TDD operation from the base station.
  • the electronic device 101 may reconfigure the slot format according to the TDD operation and transmit it to the base station.
  • slots 0, 1, and 2 transmit downlink signals through the first and second antennas.
  • can receive Slots 3 and 4 may be configured to transmit uplink signals.
  • the electronic device may transmit the SRS through the second antenna as the second transmission signal Tx2 in slot 3, and may transmit the SRS through the first antenna as the first transmission signal Tx0 in slot 4 .
  • the electronic device may set the slot to receive the downlink signal through the first antenna.
  • the electronic device when the electronic device transmits the SRS through the first antenna in slot 4, the electronic device may set the slot to receive a downlink signal through the second antenna.
  • the slot configuration may be implemented such that the base station sets and transmits the configuration information to the electronic device 101, or the electronic device 101 sets and transmits the configuration information to the base station.
  • the slot format according to the TDD operation may be variously set as shown in Table 10 below.
  • SRS is transmitted through the first antenna, It can be configured to receive a downlink signal through the second antenna.
  • the electronic device 101 includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and the at least one RFIC at least one radio frequency front-end (RFFE) circuit 431 , 432 connected to and configured to process a transmission signal, comprising a plurality of antennas 441 , 442 , 443 , 444 connected through the at least one RFFE circuit and, the communication processor checks whether data is transmitted through a second antenna among the plurality of antennas at a first time point when a reference signal is transmitted through a first antenna among the plurality of antennas, , as a result of the check, when data is not transmitted through the second antenna, it is possible to control to transmit the reference signal to the base station with the second power adjusted upward from the first power set for transmission of the reference signal.
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the reference signal may include a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement.
  • SRS sounding reference signal
  • the second power may be set based on the maximum transmittable power set for the electronic device.
  • the communication processor transmits the reference signal through the first antenna through which a primary component carrier (PCC) signal is transmitted during a carrier aggregation operation, and a secondary component carrier (SCC) signal is transmitted. ) can be controlled not to transmit a signal through the second antenna through which the signal is transmitted.
  • PCC primary component carrier
  • SCC secondary component carrier
  • the communication processor may set not to transmit and receive signals through the second antenna at the first time point when the uplink signal and the downlink signal operate in a time division multiplexing scheme. .
  • the communication processor when the uplink signal and the downlink signal operate in a time division multiplexing scheme, the communication processor is configured not to transmit/receive a signal through the second antenna at the first time point. It can be received from the base station.
  • the communication processor may be configured to receive a signal through the second antenna at the first time point.
  • the communication processor may receive information configured to receive a signal through the second antenna at the first time point. It can be received from the base station.
  • the electronic device 101 includes a communication processor 260 , at least one radio frequency integrated circuit (RFIC) 410 connected to the communication processor, and the at least one RFIC a first radio frequency front-end (RFFE) circuit 431 coupled to and configured to process a transmission signal, a second RFFE circuit 432 coupled to the at least one RFIC and configured to process a transmission signal, each of the first RFFE A first antenna group (441, 443) including a plurality of antennas connected through a circuit and transmitting a signal corresponding to at least one communication network, and each connected through the second RFFE circuit to at least one communication network and a second antenna group (442, 444) including a plurality of antennas for transmitting corresponding signals, wherein the communication processor is configured to: at a first time point to transmit a reference signal through the plurality of antennas, the Control to transmit a first reference signal to a base station through a first antenna of the first antenna group with a second power adjusted upward from a first power set for transmission
  • RFIC radio frequency
  • the reference signal may include a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement.
  • SRS sounding reference signal
  • a transmission path of a signal transmitted through the second antenna may have a greater path loss than a transmission path of a signal transmitted through the first antenna.
  • the communication processor may be configured to use a fourth power adjusted upward from a first power configured for transmission of the reference signal at a second time point at which a reference signal is transmitted among the plurality of antennas. control to transmit a third reference signal to the base station through a third antenna among It can be controlled to transmit to the base station.
  • a transmission path of a signal transmitted through the fourth antenna may have a greater path loss than a transmission path of a signal transmitted through the third antenna.
  • the communication processor may control to change an impedance tuner setting value for the third antenna at the second time point.
  • the communication processor checks an average of a modulation and coding scheme (MCS) for a predetermined time before the first time point, and when the average of the checked MCS falls within a set range, the first A reference signal may be controlled to be transmitted with the first power.
  • MCS modulation and coding scheme
  • the method includes a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and at least one connected to the at least one RFIC and configured to process a transmission signal
  • RFIC radio frequency integrated circuit
  • RFFE radio frequency front-end
  • the reference signal may include a sounding reference signal (SRS) used for multi-antenna signal processing through uplink channel state measurement.
  • SRS sounding reference signal
  • the second power may be set based on the maximum transmittable power set for the electronic device, and the electronic device may transmit a reference signal.
  • the method transmits the reference signal through the first antenna through which a primary component carrier (PCC) signal is transmitted, and a secondary component carrier (SCC) during a carrier aggregation operation. It is possible to control not to transmit a signal through the second antenna through which the signal is transmitted.
  • PCC primary component carrier
  • SCC secondary component carrier
  • the method may control so as not to transmit/receive a signal through the second antenna at the first time point .
  • the electronic device may have various types of devices.
  • the electronic device may include, for example, a computer device, a portable communication device (eg, a smartphone), a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a computer device e.g., a laptop, a desktop, a tablet, or a smart phone.
  • a portable communication device eg, a smartphone
  • portable multimedia device e.g., a portable medical device
  • camera e.g., a camera
  • a wearable device e.g., a portable medical device
  • a home appliance device e.g., a portable medical device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • the electronic device according to the embodiment of the present document is not limited to the above-described devices.
  • first”, “second”, or “first” or “second” may simply be used to distinguish the component from other components in question, and may refer to components in other aspects (e.g., importance or order) is not limited. that one (eg first) component is “coupled” or “connected” to another (eg, second) component with or without the terms “functionally” or “communicatively” When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.
  • module may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit.
  • a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
  • 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 include software (eg, one or more instructions stored in a storage medium (eg, internal memory or external memory) readable by a machine (eg, a master device or a task performing device)) For example, it can be implemented as a program).
  • a processor of a device eg, a master device or a task performing device
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium 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 a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
  • a signal eg, electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided as included in a computer program product.
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play StoreTM) or on two user devices (eg, It can be distributed (eg downloaded or uploaded) directly or online between smartphones (eg: smartphones).
  • a part of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.
  • each component eg, a module or a program of the above-described components may include a singular or a plurality of entities.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • 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 among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. or one or more other operations may be added.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon divers modes de réalisation, un dispositif électronique comprend : un processeur de communication ; au moins un circuit intégré radiofréquence (RFIC) connecté au processeur de communication ; au moins un circuit frontal radiofréquence (RFFE) configuré pour être connecté à l'au moins un RFIC et traiter un signal d'émission ; et une pluralité d'antennes connectées par l'intermédiaire de l'au moins un un circuit RFFE, le processeur de communication pouvant effectuer un contrôle pour : vérifier, à un premier instant durant lequel un signal de référence doit être émis par l'intermédiaire d'une première antenne parmi la pluralité d'antennes, si des données sont transmises par l'intermédiaire d'une seconde antenne parmi la pluralité d'antennes ; et, suite à la vérification, émettre, vers une station de base, un signal de référence avec une seconde puissance réglée vers le haut à partir d'un premier ensemble de puissance pour l'émission du signal de référence, si les données ne sont pas transmises par l'intermédiaire de la seconde antenne. Divers autres modes de réalisation sont possibles.
PCT/KR2021/016888 2020-11-26 2021-11-17 Dispositif électronique, et procédé par lequel un dispositif électronique destiné à émettre un signal par l'intermédiaire de multiples antennes émet un signal de référence WO2022114659A1 (fr)

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KR10-2020-0161481 2020-11-26
KR1020200161481A KR20220073425A (ko) 2020-11-26 2020-11-26 전자 장치 및 복수의 안테나들을 통해 신호를 전송하는 전자 장치에서 기준 신호를 전송하는 방법

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WO2024043476A1 (fr) * 2022-08-22 2024-02-29 삼성전자주식회사 Dispositif électronique pour ajuster, sur la base de la fréquence, l'intensité d'un signal de données à transmettre par l'intermédiaire d'un motif conducteur et procédé associé

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KR101768839B1 (ko) * 2010-04-30 2017-08-30 선 페이턴트 트러스트 무선 통신 장치 및 송신 전력 제어 방법
US9894622B2 (en) * 2010-11-05 2018-02-13 Sun Patent Trust Wireless communication terminal device and power allocation method
KR20190139849A (ko) * 2017-03-22 2019-12-18 아이디에이씨 홀딩스, 인크. 새로운 무선 (nr) 시스템에서 전력 제어를 수행하는 방법
KR20200084158A (ko) * 2019-01-02 2020-07-10 삼성전자주식회사 무선 통신 시스템에서 전자 장치의 송신 전력 제어 장치 및 방법

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KR20100088083A (ko) * 2009-01-29 2010-08-06 엘지전자 주식회사 전송 전력을 제어하는 방법 및 이를 위한 장치
KR101768839B1 (ko) * 2010-04-30 2017-08-30 선 페이턴트 트러스트 무선 통신 장치 및 송신 전력 제어 방법
US9894622B2 (en) * 2010-11-05 2018-02-13 Sun Patent Trust Wireless communication terminal device and power allocation method
KR20190139849A (ko) * 2017-03-22 2019-12-18 아이디에이씨 홀딩스, 인크. 새로운 무선 (nr) 시스템에서 전력 제어를 수행하는 방법
KR20200084158A (ko) * 2019-01-02 2020-07-10 삼성전자주식회사 무선 통신 시스템에서 전자 장치의 송신 전력 제어 장치 및 방법

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