WO2021153819A1 - Dispositif électronique fonctionnant dans une pluralité de systèmes de communication - Google Patents

Dispositif électronique fonctionnant dans une pluralité de systèmes de communication Download PDF

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Publication number
WO2021153819A1
WO2021153819A1 PCT/KR2020/001412 KR2020001412W WO2021153819A1 WO 2021153819 A1 WO2021153819 A1 WO 2021153819A1 KR 2020001412 W KR2020001412 W KR 2020001412W WO 2021153819 A1 WO2021153819 A1 WO 2021153819A1
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WIPO (PCT)
Prior art keywords
antenna
srs
transceiver circuit
electronic device
communication system
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PCT/KR2020/001412
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English (en)
Korean (ko)
Inventor
김태윤
강영희
박창언
권선경
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2020/001412 priority Critical patent/WO2021153819A1/fr
Publication of WO2021153819A1 publication Critical patent/WO2021153819A1/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
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present invention relates to an electronic device operating in a plurality of communication systems.
  • Electronic devices may be divided into mobile/portable terminals and stationary terminals according to whether they can be moved. Again, the electronic device can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the electronic device.
  • the functions of electronic devices are diversifying. For example, there are functions for data and voice communication, photo and video shooting through a camera, voice recording, music file playback through a speaker system, and an image or video output to the display unit.
  • Some terminals add an electronic game play function or perform a multimedia player function.
  • recent mobile terminals can receive multicast signals that provide broadcast and visual content such as video or television programs.
  • Such electronic devices have diversified functions, they are implemented in the form of multimedia devices equipped with complex functions, such as, for example, taking pictures or videos, playing music or video files, and receiving games and broadcasts. there is.
  • a wireless communication system using LTE communication technology has recently been commercialized for electronic devices to provide various services.
  • a wireless communication system using 5G communication technology will be commercialized in the future to provide various services.
  • some of the LTE frequency bands may be allocated to provide 5G communication services.
  • the mobile terminal may be configured to provide 5G communication services in various frequency bands. Recently, attempts have been made to provide a 5G communication service using the Sub6 band below the 6GHz band. Meanwhile, some of the LTE frequency bands may be allocated to provide 5G communication services.
  • the mobile terminal may be configured to provide 5G communication services in various frequency bands. Recently, attempts have been made to provide a 5G communication service using the Sub6 band below the 6GHz band. However, in the future, it is expected that 5G communication service will be provided using millimeter wave (mmWave) band other than Sub6 band for faster data rate.
  • mmWave millimeter wave
  • 5G NR New Radio
  • a base station transmits a reference signal, particularly a sounding reference signal (SRS), in order to monitor the channel condition and determine an antenna to transmit and receive data accordingly.
  • SRS sounding reference signal
  • the terminal transmits such SRS information
  • the terminal needs to transmit sequentially through different antenna ports. Therefore, in order to sequentially transmit SRS information through different antenna ports, hardware for transmitting signals for each antenna must be provided.
  • the structure of the transceiver currently discussed in 5G NR is an asymmetric structure such as 1T4R, 2T4R, and the like.
  • the transmitting system is implemented with one or two transmitting systems, which are simpler than the front-end of the receiving system.
  • the present invention aims to solve the above and other problems.
  • Another object of the present invention is to provide an electronic device capable of transmitting a reference signal through all antenna ports.
  • Another object of the present invention is to provide a method for configuring and controlling an electronic device capable of transmitting a reference signal through all antenna ports even in a single transmission system including one power amplifier.
  • an electronic device for transmitting a reference signal (RS) controls a first transceiver circuit to transmit a reference signal RS through a first antenna in a first time duration, and a reference signal RS through a second antenna in a second time duration
  • the second transceiver circuit may be controlled through a path switch in the first transceiver circuit to transmit .
  • the electronic device may include a first antenna and a second antenna configured to be operable in a first communication system and a second communication system.
  • the electronic device includes: a first transceiver circuit operatively coupled to the first antenna and configured to be operable in the first communication system and the second communication system; and a second transceiver circuit operatively coupled to the second antenna and configured to be operable in the first communication system and the second communication system.
  • the electronic device may further include a baseband processor operatively coupled to the first transceiver circuit and the second transceiver circuit, and configured to control the first transceiver circuit and the second transceiver circuit.
  • the electronic device may further include a third antenna and a fourth antenna configured to be operable in the first communication system and the second communication system.
  • the electronic device includes: a third transceiver circuit operatively coupled to the third antenna, respectively, configured to be operable in the first communication system and the second communication system; and a fourth transceiver circuit operatively coupled to the fourth antenna and configured to be operable in the first communication system and the second communication system.
  • the baseband processor controls the third transceiver circuit to transmit a reference signal (RS) through the third antenna in a third time interval, and via the fourth antenna in a fourth time interval.
  • the fourth transceiver circuit may be controlled to transmit the reference signal RS.
  • the electronic device may include a fifth antenna configured to be operable in the second communication system; and a fifth transceiver circuit operatively coupled to the fifth antenna, respectively, and configured to operate in the second communication system.
  • the reference signal RS transmitted in the first time interval to the fourth time interval may be a sounding reference signal (SRS) of a first type.
  • SRS sounding reference signal
  • the baseband processor controls the first transceiver circuit and the fifth transceiver circuit so that a second type of SRS is simultaneously transmitted through the first antenna and the fifth antenna in a first specific time interval. can do.
  • the baseband processor may control the second type of SRS to be simultaneously transmitted through the second antenna and the third antenna or the third antenna and the fourth antenna in a second specific time interval.
  • an electronic device capable of transmitting a reference signal in a plurality of communication systems such as 4G LTE and 5G NR.
  • the electronic device transmitting the reference signal according to the present invention has an advantage in that it is possible to provide an electronic device capable of transmitting the reference signal through a specific antenna port in a specific time period while receiving the RX signal.
  • FIG. 1A illustrates a configuration for explaining an electronic device and an interface between the electronic device and an external device or server according to an embodiment.
  • FIG. 1B shows a detailed configuration in which an electronic device interfaces with an external device or a server according to an exemplary embodiment.
  • FIG. 1C illustrates a configuration in which an electronic device interfaces with a plurality of base stations or network entities according to an embodiment.
  • FIG. 2A shows a detailed configuration of the electronic device of FIG. 1A .
  • FIGS. 2B and 2C are conceptual views of an example of an electronic device related to the present invention viewed from different directions.
  • 3A illustrates an example of a configuration in which a plurality of antennas of an electronic device may be disposed according to an embodiment.
  • 3B illustrates a configuration of a wireless communication unit of an electronic device operable in a plurality of wireless communication systems according to an embodiment.
  • FIG. 4 illustrates a framework structure related to an application program operating in an electronic device according to an exemplary embodiment.
  • FIG. 5A shows an example of a frame structure in NR. Meanwhile, FIG. 5B shows a change in the slot length according to a change in the subcarrier spacing in NR.
  • FIG. 6A is a configuration diagram in which a plurality of antennas and transceiver circuits are combined to be operable with a processor according to an embodiment.
  • FIG. 6B is a configuration diagram in which antennas and transceiver circuits are additionally operable with a processor in the configuration diagram of FIG. 6A .
  • FIG. 7 illustrates a multiple transmission/reception system including a plurality of antennas and a switch operating in an LTE/5G communication system according to an example.
  • FIG. 8 illustrates a front-end structure capable of supporting SRS transmission and 4G/5G signal transmission and reception according to an embodiment.
  • 9A shows a conceptual diagram for 4G/5G dual transmission in 5G non-standalone (NSA) mode.
  • 9B shows an architecture of a switching scheme in a 1T4R structure for SRS transmission.
  • 9C illustrates a time frame structure in which SRS is designed to be transmitted in different time intervals according to an example.
  • FIG. 10A illustrates a TDD time interval in which a transmission interval and a reception interval are divided according to an embodiment.
  • FIG. 10B shows a time and frequency domain in which SRS information and RS information are transmitted according to an embodiment.
  • FIG. 11 shows an internal configuration of a front-end module capable of operating in NSA and SA mode.
  • FIG. 12 shows a circuit configuration of a front-end module capable of operating in NSA and SA modes according to an embodiment.
  • 13 shows an NSA SRS and a front-end structure capable of supporting the SA SRS according to an embodiment.
  • 14 illustrates a time frame structure in which different types of SRSs are designed to be transmitted in different time intervals according to an example.
  • FIG. 15 illustrates a block diagram of a wireless communication system to which the methods proposed in the present specification can be applied.
  • Electronic devices described herein include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation systems, and slate PCs.
  • PDAs personal digital assistants
  • PMPs portable multimedia players
  • slate PCs slate PCs.
  • tablet PCs ultrabooks
  • wearable devices for example, watch-type terminals (smartwatch), glass-type terminals (smart glass), HMD (head mounted display), etc. may be included. there is.
  • FIG. 1A shows a configuration for explaining an electronic device and an interface between the electronic device and an external device or a server according to an exemplary embodiment.
  • FIG. 1B shows a detailed configuration in which an electronic device interfaces with an external device or a server according to an exemplary embodiment.
  • FIG. 1C illustrates a configuration in which an electronic device interfaces with a plurality of base stations or network entities according to an embodiment.
  • FIG. 2A shows a detailed configuration of the electronic device of FIG. 1A .
  • FIGS. 2B and 2C are conceptual views of an example of an electronic device related to the present invention viewed from different directions.
  • the electronic device 100 is configured to include a communication interface 110 , an input interface (or an input device) 120 , an output interface (or an output device) 150 , and a processor 180 .
  • the communication interface 110 may refer to the wireless communication module 110 .
  • the electronic device 100 may be configured to further include a display 151 and a memory 170 . Since the components shown in FIG. 1A are not essential for implementing the electronic device, the electronic device described herein may have more or fewer components than those listed above.
  • the wireless communication module 110 is between the electronic device 100 and the wireless communication system, between the electronic device 100 and another electronic device 100 , or between the electronic device 100 and the external device. It may include one or more modules that enable wireless communication between servers. In addition, the wireless communication module 110 may include one or more modules for connecting the electronic device 100 to one or more networks.
  • the one or more networks may be, for example, a 4G communication network and a 5G communication network.
  • the wireless communication module 110 includes at least one of a 4G wireless communication module 111 , a 5G wireless communication module 112 , a short-range communication module 113 , and a location information module 114 .
  • a 4G wireless communication module 111 may include.
  • the 4G wireless communication module 111 , the 5G wireless communication module 112 , the short-range communication module 113 , and the location information module 114 may be implemented with a baseband processor such as a modem.
  • the 4G wireless communication module 111 , the 5G wireless communication module 112 , the short-range communication module 113 and the location information module 114 may include a transceiver circuit and a baseband processor operating in an IF band.
  • the RF module 1200 may be implemented as an RF transceiver circuit operating in an RF frequency band of each communication system.
  • the present invention is not limited thereto, and the 4G wireless communication module 111 , the 5G wireless communication module 112 , the short-range communication module 113 and the location information module 114 may be interpreted to include each RF module.
  • the 4G wireless communication module 111 may transmit and receive a 4G signal with a 4G base station through a 4G mobile communication network. In this case, the 4G wireless communication module 111 may transmit one or more 4G transmission signals to the 4G base station. In addition, the 4G wireless communication module 111 may receive one or more 4G reception signals from the 4G base station.
  • Up-Link (UL) Multi-Input Multi-Output (MIMO) may be performed by a plurality of 4G transmission signals transmitted to the 4G base station.
  • Down-Link (DL) Multi-Input Multi-Output (MIMO) may be performed by a plurality of 4G reception signals received from a 4G base station.
  • the 5G wireless communication module 112 may transmit and receive a 5G signal with a 5G base station through a 5G mobile communication network.
  • the 4G base station and the 5G base station may have a Non-Stand-Alone (NSA) structure.
  • NSA Non-Stand-Alone
  • the 4G base station and the 5G base station may be a co-located structure disposed at the same location in a cell.
  • the 5G base station may be disposed in a stand-alone (SA) structure at a location separate from the 4G base station.
  • SA stand-alone
  • the 5G wireless communication module 112 may transmit and receive a 5G signal with a 5G base station through a 5G mobile communication network. In this case, the 5G wireless communication module 112 may transmit one or more 5G transmission signals to the 5G base station. In addition, the 5G wireless communication module 112 may receive one or more 5G reception signals from the 5G base station.
  • the 5G frequency band may use the same band as the 4G frequency band, and this may be referred to as LTE re-farming.
  • the 5G frequency band the Sub6 band, which is a band of 6 GHz or less, may be used.
  • a millimeter wave (mmWave) band may be used as a 5G frequency band to perform broadband high-speed communication.
  • the electronic device 100 may perform beam forming for communication coverage expansion with a base station.
  • the 5G communication system may support a larger number of Multi-Input Multi-Output (MIMO) in order to improve transmission speed.
  • MIMO Multi-Input Multi-Output
  • UL MIMO may be performed by a plurality of 5G transmission signals transmitted to the 5G base station.
  • DL MIMO may be performed by a plurality of 5G reception signals received from a 5G base station.
  • the wireless communication module 110 may be in a dual connectivity (DC) state with the 4G base station and the 5G base station through the 4G wireless communication module 111 and the 5G wireless communication module 112 .
  • DC dual connectivity
  • the dual connection with the 4G base station and the 5G base station may be referred to as EN-DC (EUTRAN NR DC).
  • EUTRAN is an Evolved Universal Telecommunication Radio Access Network, which means a 4G wireless communication system
  • NR is New Radio, which means a 5G wireless communication system.
  • the 4G base station and the 5G base station have a co-located structure, throughput improvement is possible through inter-CA (Carrier Aggregation). Therefore, the 4G base station and the 5G base station In the EN-DC state, the 4G reception signal and the 5G reception signal may be simultaneously received through the 4G wireless communication module 111 and the 5G wireless communication module 112 .
  • inter-CA Carrier Aggregation
  • Short-range communication module 113 is for short-range communication, Bluetooth (Bluetooth), RFID (Radio Frequency Identification), infrared communication (Infrared Data Association; IrDA), UWB (Ultra Wideband), ZigBee, NFC At least one of (Near Field Communication), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies may be used to support short-range communication.
  • the short-distance communication module 114 between the electronic device 100 and a wireless communication system, between the electronic device 100 and another electronic device 100, or the electronic device 100 through wireless area networks (Wireless Area Networks) ) and a network in which another electronic device 100 or an external server is located may support wireless communication.
  • the local area network may be a local area network (Wireless Personal Area Networks).
  • short-range communication between electronic devices may be performed using the 4G wireless communication module 111 and the 5G wireless communication module 112 .
  • short-distance communication may be performed between electronic devices using a device-to-device (D2D) method without going through a base station.
  • D2D device-to-device
  • carrier aggregation using at least one of the 4G wireless communication module 111 and the 5G wireless communication module 112 and the Wi-Fi communication module 113
  • 4G + WiFi carrier aggregation may be performed using the 4G wireless communication module 111 and the Wi-Fi communication module 113
  • 5G + WiFi carrier aggregation may be performed using the 5G wireless communication module 112 and the Wi-Fi communication module 113 .
  • the location information module 114 is a module for acquiring a location (or current location) of an electronic device, and a representative example thereof includes a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module.
  • GPS Global Positioning System
  • Wi-Fi Wireless Fidelity
  • the electronic device may acquire the location of the electronic device by using a signal transmitted from a GPS satellite.
  • the location of the electronic device may be acquired based on information of the Wi-Fi module and a wireless access point (AP) that transmits or receives a wireless signal.
  • AP wireless access point
  • the location information module 114 may perform any function of the other modules of the wireless communication module 110 to obtain data on the location of the electronic device as a substitute or additionally.
  • the location information module 114 is a module used to obtain the location (or current location) of the electronic device, and is not limited to a module that directly calculates or obtains the location of the electronic device.
  • the electronic device may acquire the location of the electronic device based on information of the 5G wireless communication module and the 5G base station that transmits or receives the wireless signal.
  • the 5G base station of the millimeter wave (mmWave) band is deployed in a small cell having a narrow coverage, it is advantageous to obtain the location of the electronic device.
  • the input device 120 may include a pen sensor 1200 , a key button 123 , a voice input module 124 , a touch panel 151a, and the like. Meanwhile, the input device 120 includes a camera module 121 or an image input unit for inputting an image signal, a microphone 152c for inputting an audio signal, or an audio input unit, and a user input unit (eg, a user input unit for receiving information from a user). For example, it may include a touch key, a push key (mechanical key, etc.). The voice data or image data collected by the input device 120 may be analyzed and processed as a user's control command.
  • the camera module 121 is a device capable of capturing still images and moving images, and according to an embodiment, one or more image sensors (eg, a front sensor or a rear sensor), a lens, an image signal processor (ISP), or a flash (eg, : LED or lamp, etc.).
  • image sensors eg, a front sensor or a rear sensor
  • lens e.g., a lens
  • ISP image signal processor
  • flash eg, : LED or lamp, etc.
  • the sensor module 140 may include one or more sensors for sensing at least one of information in the electronic device, surrounding environment information surrounding the electronic device, and user information.
  • the sensor module 140 may include a gesture sensor 340a, a gyro sensor 340b, a barometric pressure sensor 340c, a magnetic sensor 340d, an acceleration sensor 340e, a grip sensor 340f, and a proximity sensor 340g. ), color sensor (340h) (e.g.
  • RGB red, green, blue
  • biometric sensor 340i
  • temperature/humidity sensor 340j
  • illuminance sensor 340k
  • UV ultra violet
  • At least one of a sensor 340l, an optical sensor 340m, and a hall sensor 340n may be included.
  • the sensor module 140 includes a fingerprint recognition sensor (finger scan sensor), an ultrasonic sensor (ultrasonic sensor), an optical sensor (for example, a camera (see 121)), a microphone (see 152c), a battery battery gauges, environmental sensors (eg barometers, hygrometers, thermometers, radiation sensors, thermal sensors, gas detection sensors, etc.), chemical sensors (eg electronic noses, healthcare sensors, biometric sensors, etc.) etc.) may be included.
  • the electronic device disclosed in the present specification may combine and utilize information sensed by at least two or more of these sensors.
  • the output interface 150 is for generating an output related to visual, auditory or tactile sense, and may include at least one of a display 151 , an audio module 152 , a haptip module 153 , and an indicator 154 .
  • the display 151 may implement a touch screen by forming a layer structure with each other or integrally formed with the touch sensor.
  • a touch screen may function as the user input unit 123 providing an input interface between the electronic device 100 and the user, and may provide an output interface between the electronic device 100 and the user.
  • the display 151 may be a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, or a micro electromechanical system (micro-electromechanical system). electro mechanical systems, MEMS) displays, or electronic paper displays.
  • the display 151 may display various contents (eg, text, image, video, icon, and/or symbol, etc.) to the user.
  • the display 151 may include a touch screen, and may receive, for example, a touch input using an electronic pen or a part of the user's body, a gesture, a proximity, or a hovering input.
  • the display 151 may include a touch panel 151a, a hologram device 151b, a projector 151c, and/or a control circuit for controlling them.
  • the panel may be implemented to be flexible, transparent, or wearable.
  • the panel may include the touch panel 151a and one or more modules.
  • the hologram device 151b may display a stereoscopic image in the air by using light interference.
  • the projector 151c may display an image by projecting light onto the screen.
  • the screen may be located inside or outside the electronic device 100 , for example.
  • the audio module 152 may be configured to interwork with the receiver 152a, the speaker 152b, and the microphone 152c. Meanwhile, the haptic module 153 may convert an electrical signal into mechanical vibration, and may generate vibration or a haptic effect (eg, pressure, texture) or the like.
  • the electronic device includes, for example, a mobile TV support device (eg, GPU) capable of processing media data according to standards such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or mediaFlow.
  • DMB digital multimedia broadcasting
  • DVD digital video broadcasting
  • mediaFlow may include Also, the indicator 154 may display a specific state of the electronic device 100 or a part thereof (eg, the processor 310 ), for example, a booting state, a message state, or a charging state.
  • the wired communication module 160 which may be implemented as an interface unit, functions as a passage with various types of external devices connected to the electronic device 100 .
  • the wired communication module 160 includes an HDMI 162 , a USB 162 , a connector/port 163 , an optical interface 164 , or a D-sub (D-subminiature) 165 . can do.
  • the wired communication module 160 connects a device equipped with a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio I/O (Input/Output) port, a video I/O (Input/Output) port, and an earphone port.
  • the electronic device 100 may perform appropriate control related to the connected external device.
  • the memory 170 stores data supporting various functions of the electronic device 100 .
  • the memory 170 may store a plurality of application programs (or applications) driven in the electronic device 100 , data for operation of the electronic device 100 , and commands. At least some of these application programs may be downloaded from an external server (eg, the first server 310 or the second server 320) through wireless communication. In addition, at least some of these application programs may exist on the electronic device 100 from the time of shipment for basic functions (eg, incoming calls, outgoing functions, message reception, and outgoing functions) of the electronic device 100 . Meanwhile, the application program may be stored in the memory 170 , installed on the electronic device 100 , and driven by the processor 180 to perform an operation (or function) of the electronic device.
  • the first server 310 may be referred to as an authentication server
  • the second server 320 may be referred to as a content server.
  • the first server 310 and/or the second server 320 may interface with an electronic device through a base station.
  • a part of the second server 320 corresponding to the content server may be implemented as a mobile edge cloud (MEC, 330) in units of base stations. Accordingly, it is possible to implement a distributed network through the second server 320 implemented as a mobile edge cloud (MEC, 330) and to reduce content transmission delay.
  • MEC mobile edge cloud
  • Memory 170 may include volatile and/or non-volatile memory. Also, the memory 170 may include an internal memory 170a and an external memory 170b. The memory 170 may store, for example, commands or data related to at least one other component of the electronic device 100 . According to one embodiment, the memory 170 may store software and/or a program 240 .
  • the program 240 may include a kernel 171 , middleware 172 , an application programming interface (API) 173 , or an application program (or “application”) 174 , and the like. At least a portion of the kernel 171 , the middleware 172 , or the API 174 may be referred to as an operating system (OS).
  • OS operating system
  • the kernel 171 is a system used to execute operations or functions implemented in other programs (eg, middleware 172 , an application programming interface (API) 173 , or an application program 174 ).
  • Resources eg, bus, memory 170, processor 180, etc.
  • the kernel 171 may provide an interface capable of controlling or managing system resources by accessing individual components of the electronic device 100 from the middleware 172 , the API 173 , or the application program 174 . can
  • the middleware 172 may play an intermediary role so that the API 173 or the application program 174 communicates with the kernel 171 to exchange data. Also, the middleware 172 may process one or more work requests received from the application program 247 according to priority. In an embodiment, the middleware 172 sets a priority for using the system resource (eg, bus, memory 170, processor 180, etc.) of the electronic device 100 to at least one of the application programs 174 . Grants and can process one or more work requests.
  • the API 173 is an interface for the application program 174 to control a function provided by the kernel 171 or the middleware 1723, for example, at least one for file control, window control, image processing, or text control. It can contain interfaces or functions (such as commands).
  • the processor 180 In addition to the operation related to the application program, the processor 180 generally controls the overall operation of the electronic device 100 .
  • the processor 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170 .
  • the processor 180 may control at least some of the components described with reference to FIGS. 1A and 2A in order to drive an application program stored in the memory 170 .
  • the processor 180 may operate at least two or more of the components included in the electronic device 100 in combination with each other.
  • the processor 180 is one of a central processing unit (CPU), an application processor (AP), an image signal processor (ISP), a communication processor (CP), a low-power processor (eg, a sensor hub), or It may include more than that.
  • the processor 180 may execute an operation or data processing related to control and/or communication of at least one other component of the electronic device 100 .
  • the power supply unit 190 receives external power and internal power under the control of the processor 180 to supply power to each component included in the electronic device 100 .
  • the power supply unit 190 includes a power management module 191 and a battery 192, and the battery 192 may be a built-in battery or a replaceable battery.
  • the power management module 191 may include a power management integrated circuit (PMIC), a charger IC, or a battery or fuel gauge.
  • the PMIC may have a wired and/or wireless charging method.
  • the wireless charging method includes, for example, For example, it includes a magnetic resonance method, a magnetic induction method, an electromagnetic wave method, etc., and may further include an additional circuit for wireless charging, for example, a coil loop, a resonance circuit, or a rectifier.
  • the remaining amount of the battery 396, voltage, current, or temperature during charging may be measured, for example, the battery 192 may include a rechargeable battery and/or a solar cell.
  • Each of the external device 100a , the first server 310 , and the second server 320 may be the same or a different type of device (eg, an external device or a server) as the electronic device 100 .
  • all or part of the operations executed in the electronic device 100 may be performed by one or a plurality of other electronic devices (eg, the external device 100a, the first server 310, and the second server 320).
  • the electronic device 100 when the electronic device 100 needs to perform a function or service automatically or upon request, the electronic device 100 performs the function or service by itself instead of or in addition to it. At least some related functions may be requested from other devices (eg, the external device 100a, the first server 310, and the second server 320).
  • Another electronic device may execute a requested function or an additional function, and transmit the result to the electronic device 201 .
  • the electronic device 100 may provide the requested function or service by processing the received result as it is or additionally.
  • cloud computing distributed computing, client-server computing, or mobile edge cloud (MEC) technology may be used.
  • At least some of the respective components may operate in cooperation with each other to implement an operation, control, or control method of an electronic device according to various embodiments described below. Also, the operation, control, or control method of the electronic device may be implemented on the electronic device by driving at least one application program stored in the memory 170 .
  • the wireless communication system may include an electronic device 100 , at least one external device 100a , a first server 310 , and a second server 320 .
  • the electronic device 100 is functionally connected to at least one external device 100a, and may control contents or functions of the electronic device 100 based on information received from the at least one external device 100a.
  • the electronic device 100 may use the servers 310 and 320 to perform authentication to determine whether the at least one external device 100 includes or generates information conforming to a predetermined rule. there is.
  • the electronic device 100 may display contents or control functions differently by controlling the electronic device 100 based on the authentication result.
  • the electronic device 100 may be connected to at least one external device 100a through a wired or wireless communication interface to receive or transmit information.
  • the electronic device 100 and the at least one external device 100a may include near field communication (NFC), a charger (eg, universal serial bus (USB)-C), an ear jack, Information may be received or transmitted in a manner such as BT (bluetooth) or WiFi (wireless fidelity).
  • NFC near field communication
  • USB universal serial bus
  • WiFi wireless fidelity
  • the electronic device 100 includes at least one of an external device authentication module 100-1, a content/function/policy information DB 100-2, an external device information DB 100-3, and a content DB 104 can do.
  • the at least one external device 100a may be a device designed for various purposes, such as convenience of use of the electronic device 100, increase of aesthetics, enhancement of usability, etc. .
  • At least one external device 100a may or may not be in physical contact with the electronic device 100 .
  • the at least one external device 100a is functionally connected to the electronic device 100 using a wired/wireless communication module, and receives control information for controlling content or functions in the electronic device 100 . can be transmitted
  • the at least one external device 100a encrypts/decrypts one or more pieces of information included in the external device information, or stores it in a physical/virtual memory area that is not directly accessible from the outside. and may include an authentication module for management.
  • the at least one external device 100a may communicate with the electronic device 100 or provide information through communication between external devices.
  • at least one external device 100a may be functionally connected to the server 310 or 320 .
  • the at least one external device 100a includes a cover case, an NFC dongle, a vehicle charger, an earphone, an ear cap (eg, an accessory device mounted on a mobile phone audio connector), a thermometer, It may be a product of various types, such as an electronic pen, BT earphone, BT speaker, BT dongle, TV, refrigerator, WiFi dongle, etc.
  • the external device 100a such as a wireless charger may supply power to the electronic device 100 through a charging interface such as a coil.
  • control information may be exchanged between the external device 100a and the electronic device 100 through in-band communication through a charging interface such as a coil.
  • control information may be exchanged between the external device 100a and the electronic device 100 through out-of-band communication such as Bluetooth or NFC.
  • the first server 310 may include a server for a service related to the at least one external device 100a, a cloud device, or a hub device for controlling a service in a smart home environment.
  • the first server 310 may include one or more of an external device authentication module 311 , a content/function/policy information DB 312 , an external device information DB 313 , and an electronic device/user DB 314 .
  • the first server 310 may be referred to as an authentication management server, an authentication server, or an authentication-related server.
  • the second server 320 may include a server or a cloud device for providing a service or content, or a hub device for providing a service in a smart home environment.
  • the second server 320 may include one or more of a content DB 321 , an external device specification information DB 322 , a content/function/policy information management module 323 , or a device/user authentication/management module 324 .
  • the second server 130 may be referred to as a content management server, a content server, or a content-related server.
  • FIG. 1C shows a configuration in which an electronic device is interfaced with a plurality of base stations or network entities according to an embodiment.
  • 4G/5G deployment options are shown.
  • multi-RAT of 4G LTE and 5G NR when multi-RAT of 4G LTE and 5G NR is supported and in non-standalone (NSA) mode, it can be implemented as EN-DC of option 3 or NGEN-DC of option 5.
  • NSA non-standalone
  • multi-RAT when multi-RAT is supported and in standalone (SA) mode, it may be implemented as NE-DC of option 4.
  • SA standalone
  • NR-DC of option 2 when single RAT is supported and in standalone (SA) mode, it may be implemented as NR-DC of option 2.
  • the eNB is a 4G base station, also called an LTE eNB, and is based on the Rel-8 - Rel-14 standard.
  • ng-eNB is an eNB capable of interworking with 5GC and gNB, also called eLTE eNB, and is based on the Rel-15 standard.
  • gNB is a 5G base station interworking with 5G NR and 5GC, also called NR gNB, and is based on the Rel-15 standard.
  • en-gNB is a gNB capable of interworking with EPC and eNB, also called NR gNB, and is based on the Rel-15 standard.
  • option 3 indicates E-UTRA-NR Dual Connectivity (EN-DC).
  • option 7 represents NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC).
  • option 4 indicates NR-E-UTRA Dual Connectivity (NE-DC).
  • option 2 indicates NR-NR Dual Connectivity (NR-DC).
  • the technical characteristics of the dual connection according to option 2 to option 7 are as follows.
  • Independent 5G service can be provided only with 5G system (5GC, gNB).
  • 5GC 5G system
  • 5G system 5GC, gNB
  • eMBB enhanced Mobile Broadband
  • URLLC Ultra-Reliable Low-Latency Communication
  • mMTC Massive Machine Type Communication
  • 5G full service can be provided. Initially, due to coverage limitations, it can be used as a hot spot, enterprise, or overlay network. In case of out of 5G NR coverage, EPC-5GC interworking is required. 5G NR full coverage may be provided, and dual connectivity (NR-DC) between gNBs may be supported using multiple 5G frequencies.
  • NR-DC dual connectivity
  • gNB When only gNB is introduced into the existing LTE infrastructure.
  • the core is the EPC and the gNB is the en-gNB capable of interworking with the EPC and the eNB.
  • Dual connectivity (EN-DC) is supported between the eNB and the en-gNB, and the master node is the eNB.
  • the eNB which is the control anchor of the en-gNB, processes control signaling for network access, connection establishment, handover, etc. of the UE, and user traffic may be delivered through the eNB and/or en-gNB.
  • This option is mainly applied in the first stage of 5G migration as operators operating nationwide LTE networks can quickly establish 5G networks without 5GC without introducing en-gNB and minimal LTE upgrades.
  • Option 3 There are 3 types of Option 3, Option 3/3a/3x depending on the user traffic split method. Bearer split is applied to Option 3/3x and Option 3a is not applied. The main method is Option 3x.
  • eNB Only the eNB is connected to the EPC and the en-gNB is only connected to the eNB. User traffic is split in the master node (eNB) and can be transmitted simultaneously to LTE and NR.
  • eNB master node
  • Both the eNB and the gNB are connected to the EPC, and user traffic is delivered directly from the EPC to the gNB.
  • User traffic is transmitted in LTE or NR.
  • Option 3 and Option 3a are combined.
  • the difference from Option 3 is that user traffic is split at the secondary node (gNB).
  • Option 3 The advantages of Option 3 are i) that LTE can be used as a capacity booster for eMBB service, and ii) that the terminal is always connected to LTE, so even if it goes out of 5G coverage or the NR quality is deteriorated, service continuity is provided through LTE and stable Communication may be provided.
  • 5GC is introduced and it is still linked with LTE, but independent 5G communication is possible.
  • the core is 5GC and the eNB is an ng-eNB capable of interworking with 5GC and gNB.
  • Dual connectivity (NE-DC) is supported between the ng-eNB and the gNB, and the master node is the gNB.
  • NE-DC Dual connectivity
  • LTE can be used as a capacity booster.
  • the main method is Option 4a.
  • 5GC is introduced and still works with LTE, so 5G communication depends on LTE.
  • the core is 5GC and the eNB is an ng-eNB capable of interworking with 5GC and gNB. Dual connectivity (NGEN-DC) is supported between ng-eNB and gNB, and the master node is the eNB.
  • 5GC characteristics can be used, and service continuity can still be provided with the eNB as the master node, as in Option 3, when 5G coverage is not yet sufficient.
  • the main method is Option 7x.
  • the disclosed electronic device 100 has a bar-shaped terminal body.
  • the present invention is not limited thereto, and may be applied to various structures such as a watch type, a clip type, a glass type, or a folder type in which two or more bodies are coupled to be relatively movable, a flip type, a slide type, a swing type, a swivel type, etc. .
  • a watch type a clip type
  • a glass type or a folder type in which two or more bodies are coupled to be relatively movable
  • a flip type a slide type
  • a swing type a swing type
  • swivel type etc.
  • the terminal body may be understood as a concept referring to the electronic device 100 as at least one aggregate.
  • the electronic device 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an exterior. As illustrated, the electronic device 100 may include a front case 101 and a rear case 102 . Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102 . At least one middle case may be additionally disposed between the front case 101 and the rear case 102 .
  • a case eg, a frame, a housing, a cover, etc.
  • the electronic device 100 may include a front case 101 and a rear case 102 .
  • Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102 .
  • At least one middle case may be additionally disposed between the front case 101 and the rear case 102 .
  • a display 151 is disposed on the front surface of the terminal body to output information. As shown, the window 151a of the display 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101 .
  • an electronic component may also be mounted on the rear case 102 .
  • Electronic components that can be mounted on the rear case 102 include a removable battery, an identification module, a memory card, and the like.
  • the rear cover 103 for covering the mounted electronic component may be detachably coupled to the rear case 102 . Accordingly, when the rear cover 103 is separated from the rear case 102 , the electronic components mounted on the rear case 102 are exposed to the outside.
  • a portion of the side of the rear case 102 may be implemented to operate as a radiator (radiator).
  • the rear cover 103 when the rear cover 103 is coupled to the rear case 102, a portion of the side of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the combination. Meanwhile, the rear cover 103 may have an opening for exposing the camera 121b or the sound output unit 152b to the outside.
  • the electronic device 100 includes a display 151 , first and second sound output units 152a and 152b , a proximity sensor 141 , an illuminance sensor 142 , a light output unit 154 , and first and second cameras. (121a, 121b), first and second operation units (123a, 123b), a microphone 122, a wired communication module 160, etc. may be provided.
  • the display 151 displays (outputs) information processed by the electronic device 100 .
  • the display 151 may display execution screen information of an application program driven in the electronic device 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information.
  • UI User Interface
  • GUI Graphic User Interface
  • two or more displays 151 may exist according to an implementation form of the electronic device 100 .
  • a plurality of display units may be spaced apart from each other on one surface or may be integrally disposed, or may be respectively disposed on different surfaces.
  • the display 151 may include a touch sensor for sensing a touch on the display 151 so as to receive a control command input by a touch method. Using this, when a touch is made on the display 151, the touch sensor detects the touch, and the processor 180 may generate a control command corresponding to the touch based thereon.
  • the content input by the touch method may be letters or numbers, or menu items that can be instructed or designated in various modes.
  • the display 151 may form a touch screen together with the touch sensor, and in this case, the touch screen may function as the user input unit 123 (refer to FIG. 1A ). In some cases, the touch screen may replace at least some functions of the first operation unit 123a.
  • the first sound output unit 152a may be implemented as a receiver that transmits a call sound to the user's ear, and the second sound output unit 152b is a loud speaker that outputs various alarm sounds or multimedia reproduction sounds. ) can be implemented in the form of
  • the light output unit 154 is configured to output light to notify the occurrence of an event. Examples of the event may include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and information reception through an application.
  • the processor 180 may control the light output unit 154 to end the light output.
  • the first camera 121a processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode.
  • the processed image frame may be displayed on the display 151 and stored in the memory 170 .
  • the first and second manipulation units 123a and 123b are an example of the user input unit 123 operated to receive a command for controlling the operation of the electronic device 100, and may be collectively referred to as a manipulating portion. there is.
  • the first and second operation units 123a and 123b may be adopted in any manner as long as they are operated in a tactile manner, such as by a touch, push, or scroll, while the user receives a tactile feeling.
  • the first and second manipulation units 123a and 123b may be operated in a manner in which the user is operated without a tactile feeling through a proximity touch, a hovering touch, or the like.
  • the electronic device 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the processor 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means.
  • the fingerprint recognition sensor may be embedded in the display 151 or the user input unit 123 .
  • the wired communication module 160 serves as a path through which the electronic device 100 can be connected to an external device.
  • the wired communication module 160 includes a connection terminal for connection with another device (eg, earphone, external speaker), a port for short-range communication (eg, an infrared port (IrDA Port), a Bluetooth port ( Bluetooth Port), a wireless LAN port, etc.], or at least one of a power supply terminal for supplying power to the electronic device 100 .
  • the wired communication module 160 may be implemented in the form of a socket accommodating an external card, such as a subscriber identification module (SIM), a user identity module (UIM), or a memory card for information storage.
  • SIM subscriber identification module
  • UIM user identity module
  • memory card for information storage.
  • a second camera 121b may be disposed on the rear side of the terminal body.
  • the second camera 121b has a photographing direction substantially opposite to that of the first camera 121a.
  • the second camera 121b may include a plurality of lenses arranged along at least one line.
  • the plurality of lenses may be arranged in a matrix form.
  • Such a camera may be referred to as an array camera.
  • images may be captured in various ways using a plurality of lenses, and images of better quality may be obtained.
  • the flash 125 may be disposed adjacent to the second camera 121b. The flash 125 illuminates light toward the subject when the subject is photographed by the second camera 121b.
  • a second sound output unit 152b may be additionally disposed on the terminal body.
  • the second sound output unit 152b may implement a stereo function together with the first sound output unit 152a, and may be used to implement a speakerphone mode during a call.
  • the microphone 152c is configured to receive a user's voice, other sounds, and the like.
  • the microphone 152c may be provided at a plurality of locations and configured to receive stereo sound.
  • At least one antenna for wireless communication may be provided in the terminal body.
  • the antenna may be built into the terminal body or formed in the case. Meanwhile, a plurality of antennas connected to the 4G wireless communication module 111 and the 5G wireless communication module 112 may be disposed on the side of the terminal.
  • the antenna may be formed in a film type and attached to the inner surface of the rear cover 103 , or a case including a conductive material may be configured to function as an antenna.
  • a plurality of antennas disposed on the side of the terminal may be implemented in four or more to support MIMO.
  • the 5G wireless communication module 112 operates in a millimeter wave (mmWave) band
  • mmWave millimeter wave
  • a plurality of array antennas may be disposed in the electronic device.
  • the terminal body is provided with a power supply unit 190 (refer to FIG. 1A ) for supplying power to the electronic device 100 .
  • the power supply unit 190 may include a battery 191 that is built into the terminal body or is detachably configured from the outside of the terminal body.
  • the 5G frequency band may be a higher frequency band than the Sub6 band.
  • the 5G frequency band may be a millimeter wave band, but is not limited thereto and may be changed according to an application.
  • FIG. 3A illustrates an example of a configuration in which a plurality of antennas of an electronic device may be disposed according to an embodiment.
  • a plurality of antennas 1110a to 1110d may be disposed inside or on the front side of the electronic device 100 .
  • the plurality of antennas 1110a to 1110d may be implemented in a form printed on a carrier inside an electronic device or may be implemented in a system-on-a-chip (Soc) form together with an RFIC.
  • the plurality of antennas 1110a to 1110d may be disposed on the front surface of the electronic device in addition to the inside of the electronic device.
  • the plurality of antennas 1110a to 1110d disposed on the front surface of the electronic device 100 may be implemented as transparent antennas embedded in a display.
  • a plurality of antennas 1110S1 and 1110S2 may be disposed on a side surface of the electronic device 100 .
  • a 4G antenna is disposed on the side of the electronic device 100 in the form of a conductive member, a slot is formed in the conductive member region, and a plurality of antennas 1110a to 1110d radiate a 5G signal through the slot.
  • antennas 1150B may be disposed on the rear surface of the electronic device 100 so that the 5G signal may be radiated from the rear surface.
  • At least one signal may be transmitted or received through the plurality of antennas 1110S1 and 1110S2 on the side of the electronic device 100 .
  • at least one signal may be transmitted or received through the plurality of antennas 1110a to 1110d, 1150B, 1110S1 and 1110S2 on the front and/or side of the electronic device 100 .
  • the electronic device may communicate with the base station through any one of the plurality of antennas 1110a to 1110d, 1150B, 1110S1, and 1110S2.
  • the electronic device may perform multiple input/output (MIMO) communication with the base station through two or more antennas among the plurality of antennas 1110a to 1110d, 1150B, 1110S1, and 1110S2.
  • MIMO multiple input/output
  • the electronic device includes a first power amplifier 1210 , a second power amplifier 1220 , and an RFIC 1250 .
  • the electronic device may further include a modem 400 and an application processor (AP) 500 .
  • the modem 400 and the application processor AP 500 are physically implemented on a single chip, and may be implemented in a logically and functionally separated form.
  • the present invention is not limited thereto and may be implemented in the form of physically separated chips depending on the application.
  • the electronic device includes a plurality of low noise amplifiers (LNA: Low Noise Amplifiers, 13110 to 1340) in the receiver.
  • LNA Low Noise Amplifiers
  • the first power amplifier 1210 , the second power amplifier 1220 , the controller 1250 , and the plurality of low-noise amplifiers 310 to 340 are all operable in the first communication system and the second communication system.
  • the first communication system and the second communication system may be a 4G communication system and a 5G communication system, respectively.
  • the RFIC 1250 may be configured as a 4G/5G integrated type, but is not limited thereto and may be configured as a 4G/5G separate type according to an application.
  • the RFIC 1250 is configured as a 4G/5G integrated type, it is advantageous in terms of synchronization between 4G/5G circuits, as well as the advantage that control signaling by the modem 1400 can be simplified.
  • the RFIC 1250 when configured as a 4G/5G separate type, it may be referred to as a 4G RFIC and a 5G RFIC, respectively.
  • the RFIC 1250 when the difference between the 5G band and the 4G band is large, such as when the 5G band is configured as a millimeter wave band, the RFIC 1250 may be configured as a 4G/5G separate type.
  • the RFIC 1250 when the RFIC 1250 is configured as a 4G/5G separate type, there is an advantage that RF characteristics can be optimized for each of the 4G band and the 5G band.
  • the RFIC 1250 is configured as a 4G/5G separate type, the 4G RFIC and the 5G RFIC are logically and functionally separated, and it is also possible to be physically implemented on a single chip.
  • the application processor (AP) 1450 is configured to control the operation of each component of the electronic device. Specifically, the application processor (AP) 1450 may control the operation of each component of the electronic device through the modem 1400 .
  • the modem 1400 may be controlled through a power management IC (PMIC) for low power operation of the electronic device. Accordingly, the modem 1400 may operate the power circuits of the transmitter and the receiver in the low power mode through the RFIC 1250 .
  • PMIC power management IC
  • the application processor (AP) 500 may control the RFIC 1250 through the modem 300 as follows. For example, if the electronic device is in an idle mode, the RFIC through the modem 300 so that at least one of the first and second power amplifiers 110 and 120 operates in the low power mode or is turned off (1250) can be controlled.
  • the application processor (AP) 500 may control the modem 300 to provide wireless communication capable of low power communication.
  • the application processor (AP) 1450 may control the modem 1400 to enable wireless communication with the lowest power.
  • the application processor (AP) 500 may control the modem 1400 and the RFIC 1250 to perform short-distance communication using only the short-range communication module 113 even though the throughput is somewhat sacrificed.
  • the modem 300 may be controlled to select an optimal wireless interface.
  • the application processor (AP) 1450 may control the modem 1400 to receive through both the 4G base station and the 5G base station according to the remaining battery level and available radio resource information.
  • the application processor (AP) 1450 may receive the remaining battery level information from the PMIC and the available radio resource information from the modem 1400 . Accordingly, if the remaining battery level and available radio resources are sufficient, the application processor (AP) 500 may control the modem 1400 and the RFIC 1250 to receive through both the 4G base station and the 5G base station.
  • the multi-transceiving system of FIG. 3B may integrate the transmitter and receiver of each radio system into one transceiver. Accordingly, there is an advantage that a circuit part integrating two types of system signals in the RF front-end can be removed.
  • the front-end components can be controlled by the integrated transceiver, the front-end components can be more efficiently integrated than when the transmission/reception system is separated for each communication system.
  • the multi-transmission/reception system as shown in FIG. 2 has the advantage that it is possible to control other communication systems as necessary, and thus system delay can be minimized, so that efficient resource allocation is possible.
  • the first power amplifier 1210 and the second power amplifier 1220 may operate in at least one of the first and second communication systems.
  • the first and second power amplifiers 1220 may operate in both the first and second communication systems.
  • one of the first and second power amplifiers 1210 and 1220 operates in the 4G band, and the other operates in the millimeter wave band. there is.
  • 4x4 MIMO can be implemented using four antennas as shown in FIG. 2 .
  • 4x4 DL MIMO may be performed through the downlink (DL).
  • the first to fourth antennas ANT1 to ANT4 may be configured to operate in both the 4G band and the 5G band.
  • the 5G band is a millimeter wave (mmWave) band
  • the first to fourth antennas ANT1 to ANT4 may be configured to operate in any one of the 4G band and the 5G band.
  • each of a plurality of separate antennas may be configured as an array antenna in the millimeter wave band.
  • 2x2 MIMO implementation is possible using two antennas connected to the first power amplifier 1210 and the second power amplifier 1220 among the four antennas.
  • 2x2 UL MIMO (2 Tx) may be performed through the uplink (UL).
  • the 5G communication system is implemented with 1 Tx, only one of the first and second power amplifiers 1210 and 1220 needs to operate in the 5G band.
  • an additional power amplifier operating in the 5G band may be further provided.
  • a transmission signal may be branched in each of one or two transmission paths, and the branched transmission signal may be connected to a plurality of antennas.
  • a switch-type splitter or a power divider is built inside the RFIC corresponding to the RFIC 1250, there is no need for a separate component to be disposed outside, thereby improving component mountability.
  • SPDT single pole double throw
  • the electronic device operable in a plurality of wireless communication systems may further include a duplexer 1231 , a filter 1232 , and a switch 1233 .
  • the duplexer 1231 is configured to mutually separate signals of a transmission band and a reception band. At this time, the signals of the transmission band transmitted through the first and second power amplifiers 1210 and 1220 are applied to the antennas ANT1 and ANT4 through the first output port of the duplexer 1231 . On the other hand, signals of the reception band received through the antennas ANT1 and ANT4 are received by the low noise amplifiers 310 and 340 through the second output port of the duplexer 1231 .
  • the filter 1232 may be configured to pass a signal of a transmission band or a reception band and block a signal of the remaining band.
  • the filter 1232 may include a transmit filter connected to a first output port of the duplexer 1231 and a receive filter connected to a second output port of the duplexer 1231 .
  • the filter 1232 may be configured to pass only a signal of a transmission band or only a signal of a reception band according to the control signal.
  • the switch 1233 is configured to transmit either only a transmit signal or a receive signal.
  • the switch 1233 may be configured in a single pole double throw (SPDT) type to separate a transmission signal and a reception signal in a time division multiplexing (TDD) method.
  • the transmission signal and the reception signal are signals of the same frequency band, and accordingly, the duplexer 1231 may be implemented in the form of a circulator.
  • the switch 1233 is also applicable to a frequency division multiplexing (FDD: Time Division Duplex) scheme.
  • FDD Fre Division Duplex
  • the switch 1233 may be configured in a double pole double throw (DPDT) type to connect or block a transmission signal and a reception signal, respectively.
  • DPDT double pole double throw
  • the electronic device may further include a modem 1400 corresponding to a control unit.
  • the RFIC 1250 and the modem 1400 may be referred to as a first controller (or first processor) and a second controller (second processor), respectively.
  • the RFIC 1250 and the modem 1400 may be implemented as physically separate circuits.
  • the RFIC 1250 and the modem 1400 may be physically or logically divided into one circuit.
  • the modem 1400 may control and process signals for transmission and reception of signals through different communication systems through the RFIC 1250 .
  • the modem 1400 may be obtained through control information received from the 4G base station and/or the 5G base station.
  • the control information may be received through a physical downlink control channel (PDCCH), but is not limited thereto.
  • PDCCH physical downlink control channel
  • the modem 1400 may control the RFIC 1250 to transmit and/or receive a signal through the first communication system and/or the second communication system in a specific time and frequency resource. Accordingly, the RFIC 1250 may control transmission circuits including the first and second power amplifiers 1210 and 1220 to transmit a 4G signal or a 5G signal in a specific time period. Also, the RFIC 1250 may control receiving circuits including the first to fourth low-noise amplifiers 310 to 340 to receive a 4G signal or a 5G signal in a specific time period.
  • FIG. 4 shows a framework structure related to an application program operating in an electronic device according to an exemplary embodiment.
  • the program module 410 may include a kernel 420 , middleware 430 , an API 450 , a framework/library 460 , and/or an application 470 . At least a portion of the program module 410 may be pre-loaded on the electronic device or downloaded from an external device or server.
  • the kernel 420 may include a system resource manager 421 and/or a device driver 423 .
  • the system resource manager 421 may control, allocate, or recover system resources.
  • the system resource manager 421 may include a process manager, a memory manager, or a file system manager.
  • the device driver 423 may include a display driver, a camera driver, a Bluetooth driver, a shared memory driver, a USB driver, a keypad driver, a WiFi driver, an audio driver, or an inter-process communication (IPC) driver.
  • the middleware 430 provides, for example, functions commonly required by the applications 470 or provides various functions through the API 460 so that the applications 470 can use limited system resources inside the electronic device. It may be provided as an application 470 .
  • the middleware 430 includes a runtime library 425 , an application manager 431 , a window manager 432 , a multimedia manager 433 , a resource manager 434 , a power manager 435 , a database manager 436 , a package manager ( 437 ), connectivity manager 438 , notification manager 439 , location manager 440 , graphic manager 441 , security manager 442 , content manager 443 , service manager 444 or an external device manager It may include at least one of (445).
  • the framework/library 450 may include a general-purpose framework/library 451 and a special-purpose framework/library 452 .
  • the general-purpose framework/library 451 and the special-purpose framework/library 452 may be referred to as a first framework/library 451 and a second framework/library 452 , respectively.
  • the first framework/library 451 and the second framework/library 452 may interface with the kernel space and hardware through the first API 461 and the second API 462, respectively.
  • the second framework/library 452 may be an example software architecture that may modularize artificial intelligence (AI) functions.
  • SoC System on Chip
  • CPU 422, DSP 424, GPU 426, and/or NPU 428 to support operations during runtime operation of the application 470 .
  • Application 470 may include, for example, home 471 , dialer 472 , SMS/MMS 473 , instant message (IM) 474 , browser 475 , camera 476 , alarm 477 . , Contact (478), Voice Dial (479), Email (480), Calendar (481), Media Player (482), Album (483), Watch (484), Payment (485), Accessory Management (486) ), health care, or environmental information providing applications.
  • the AI application may be configured to call functions defined in user space that may provide detection and recognition of a scene indicating the location in which the electronic device is currently operating.
  • the AI application may configure the microphone and camera differently depending on whether the recognized scene is an indoor space or an outdoor space.
  • the AI application may make a request for compiled program code associated with a library defined in the Scene Detect application programming interface (API) to provide an estimate of the current scene. Such a request may rely on the output of a deep neural network configured to provide scene estimates based on video and positioning data.
  • API Scene Detect application programming interface
  • the framework/library 462 which may be compiled code of the Runtime Framework, may be further accessible by the AI application.
  • the AI application may cause the runtime framework engine to request a scene estimate at specific time intervals, or triggered by an event detected by the application's user interface.
  • the runtime engine may then send a signal to an operating system such as a Linux Kernel running on the SoC.
  • the operating system may cause the operation to be performed on the CPU 422 , DSP 424 , GPU 426 , NPU 428 , or some combination thereof.
  • the CPU 422 may be accessed directly by the operating system, and other processing blocks may be accessed through a driver, such as the DSP 424 , the GPU 426 , or the driver 414 - 418 for the NPU 428 .
  • a driver such as the DSP 424 , the GPU 426 , or the driver 414 - 418 for the NPU 428 .
  • deep neural networks and AI algorithms may be configured to run on a combination of processing blocks, such as CPU 422 and GPU 426 , or AI algorithms, such as deep neural networks, may be configured to run on NPU 428 . may be executed.
  • the AI algorithm performed through the special-purpose framework/library as described above may be performed only by an electronic device or may be performed by a server supported scheme.
  • the electronic device may receive and transmit information related to the AI server and AI processing through the 4G/5G communication system.
  • a 5G wireless communication system that is, 5G new radio access technology (NR) may be provided.
  • NR 5G new radio access technology
  • massive MTC Machine Type Communications
  • communication system design considering reliability and latency sensitive service/terminal is being discussed.
  • NR is an expression showing an example of 5G radio access technology (RAT).
  • RAT 5G radio access technology
  • a new RAT system including NR uses an OFDM transmission scheme or a similar transmission scheme.
  • the new RAT system may follow OFDM parameters different from those of LTE.
  • the new RAT system may follow the existing numerology of LTE/LTE-A, but may have a larger system bandwidth (eg, 100 MHz).
  • one cell may support a plurality of numerologies. That is, terminals operating in different numerology may coexist in one cell.
  • FIG. 5A shows an example of a frame structure in NR.
  • FIG. 5B shows a change in the slot length according to a change in the subcarrier spacing in NR.
  • An NR system can support multiple numerologies.
  • the numerology may be defined by a subcarrier spacing and a cyclic prefix (CP) overhead.
  • the plurality of subcarrier intervals may be derived by scaling the basic subcarrier interval by an integer N (or ⁇ ).
  • N or ⁇
  • the numerology used can be selected independently of the frequency band.
  • various frame structures according to a number of numerologies may be supported.
  • OFDM Orthogonal Frequency Division Multiplexing
  • ⁇ ⁇ f 2 m * 15 [kHz] Cyclic prefix (CP) 0 15 Normal One 30 Normal 2 60 Normal, Extended 3 120 Normal 4 240 Normal
  • NR supports multiple numerology (or subcarrier spacing (SCS)) to support various 5G services. For example, when SCS is 15kHz, it supports wide area in traditional cellular bands, and when SCS is 30kHz/60kHz, dense-urban, lower latency and a wider carrier bandwidth, and when the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz to overcome phase noise.
  • the NR frequency band is defined as a frequency range of two types (FR1, FR2).
  • FR1 is the sub 6GHz range
  • FR2 is the above 6GHz range, which may mean millimeter wave (mmW).
  • Table 2 below shows the definition of the NR frequency band.
  • 3A is an example of SCS of 60 kHz, and one subframe may include four slots.
  • One subframe ⁇ 1,2,4 ⁇ slots shown in FIG. 3 is an example, and the number of slot(s) that can be included in one subframe may be one, two, or four.
  • the mini-slot may include 2, 4, or 7 symbols, or more or fewer symbols.
  • FIG. 5B the subcarrier spacing of 5G NR phase I and the OFDM symbol length accordingly indicates. Each subcarrier interval is extended by a power of 2, and the symbol length is reduced in inverse proportion to this.
  • FR1 subcarrier spacings of 15 kHz, 30 kHz and 60 kHz are available depending on the frequency band/bandwidth.
  • FR2 60 kHz and 120 kHz can be used for the data channel, and 240 kHz can be used for the synchronization signal.
  • a basic unit of scheduling is defined as a slot, and the number of OFDM symbols included in one slot may be limited to 14 as shown in FIG. 5A or 5B regardless of subcarrier spacing.
  • the length of one slot is shortened in inverse proportion to reduce transmission delay in a radio section.
  • scheduling in units of minislots eg, 2, 4, 7 symbols
  • the slots in 5G NR described herein may be provided at the same interval as the slots of 4G LTE or may be provided as slots of various sizes.
  • the slot interval in 5G NR may be configured as 0.5 ms, which is the same as the slot interval of 4G LTE.
  • the slot interval in 5G NR may be configured as 0.25 ms, which is a narrower interval than the slot interval of 4G LTE.
  • the 4G communication system and the 5G communication system may be referred to as a first communication system and a second communication system, respectively.
  • the first signal (first information) of the first communication system may be a signal (information) in a 5G NR frame with a slot interval scalable to 0.25 ms, 0.5 ms, or the like.
  • the second signal (second information) of the second communication system may be a signal (information) in a 4G LTE frame with a fixed slot interval of 0.5 ms.
  • the first signal of the first communication system may be transmitted and/or received through a maximum bandwidth of 20 MHz.
  • the second signal of the second communication system may be transmitted and/or received through a variable channel bandwidth from 5 MHz to 400 MHz.
  • the first signal of the first communication system may be FFT-processed with a single sub-carrier spacing (SCS) of 15 KHz.
  • SCS single sub-carrier spacing
  • the second signal of the second communication system may be FFT-processed at subcarrier intervals of 15 kHz, 30 kHz, and 60 kHz according to the frequency band/bandwidth.
  • the second signal of the second communication system may be modulated and frequency-converted to the FR1 band and transmitted through the 5G Sub6 antenna.
  • the FR1 band signal received through the 5G Sub6 antenna may be frequency-converted and demodulated.
  • the second signal of the second communication system may be IFFT-processed at subcarrier intervals of 15 kHz, 30 kHz, and 60 kHz according to the frequency band/bandwidth.
  • the second signal of the second communication system may be FFT-processed at subcarrier intervals of 60 kHz, 120 kHz, and 240 kHz according to frequency band/bandwidth and data/synchronization channel.
  • the second signal of the second communication system may be modulated to the FR2 band and transmitted through the 5G mmWave antenna.
  • the FR2 band signal received through the 5G mmWave antenna can be frequency-converted and demodulated.
  • the second signal of the second communication system may be IFFT-processed through subcarrier intervals of 60 kHz, 120 kHz, and 240 kHz according to frequency band/bandwidth and data/synchronization channel.
  • 5G NR symbol-level temporal alignment can be used for transmission schemes using various slot lengths, mini-slots, and different subcarrier spacings. Accordingly, it provides flexibility for efficiently multiplexing various communication services such as enhancement mobile broadband (eMBB) and ultra reliable low latency communication (uRLLC) in the time domain and frequency domain.
  • eMBB enhancement mobile broadband
  • uRLLC ultra reliable low latency communication
  • 5G NR may define uplink/downlink resource allocation at a symbol level in one slot as shown in FIG. 3 .
  • HARQ hybrid automatic repeat request
  • a slot structure capable of transmitting HARQ ACK/NACK directly within a transmission slot may be defined. Such a slot structure may be referred to as a self-contained structure.
  • 5G NR can support a common frame structure constituting an FDD or TDD frame through a combination of various slots. Accordingly, the transmission direction of an individual cell can be freely and dynamically adjusted according to traffic characteristics by introducing a dynamic TDD scheme.
  • the 5G frequency band may be a Sub6 band.
  • FIG. 6A is a combined configuration diagram in which a plurality of antennas and transceiver circuits are operable with a processor according to an embodiment.
  • FIG. 6B is a configuration diagram in which antennas and transceiver circuits are additionally operable with a processor in the configuration diagram of FIG. 6A .
  • FIGS. 6A and 6B it may include a plurality of antennas ANT1 to ANT4 and front-end modules FEM1 to FEM7 operating in a 4G band and/or a 5G band.
  • a plurality of switches SW1 to SW6 may be disposed between the plurality of antennas ANT1 to ANT4 and the front end modules FEM1 to FEM7 .
  • FIGS. 6A and 6B it may include a plurality of antennas ANT5 to ANT8 and front-end modules FEM8 to FEM11 operating in a 4G band and/or a 5G band.
  • a plurality of switches SW7 to SW10 may be disposed between the plurality of antennas ANT1 to ANT4 and the front end modules FEM8 to FEM11 .
  • a plurality of signals that may be branched through the plurality of antennas ANT1 to ANT8 may be transmitted to the input of the front end modules FEM1 to FEM11 or the plurality of switches SW1 to SW10 through one or more filters.
  • the first antenna ANT1 may be configured to receive a signal in a 5G band.
  • the first antenna ANT1 may be configured to receive the second signal of the second band B2 and the third signal of the third band B3 .
  • the second band B2 may be an n77 band
  • the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application.
  • the first antenna ANT1 may operate as a transmitting antenna in addition to a receiving antenna.
  • the first switch SW1 may be configured as an SP2T switch or an SP3T switch. When implemented as an SP3T switch, one output port can be used as a test port. Meanwhile, the first and second output ports of the first switch SW1 may be connected to the input of the first front end module FEM1 .
  • the second antenna ANT2 may be configured to transmit and/or receive signals in a 4G band and/or a 5G band.
  • the second antenna ANT2 may be configured to transmit/receive the first signal of the first band B1.
  • the first band B1 may be an n41 band, but the limitation thereto may be changed according to an application.
  • the second antenna ANT2 may operate in the low band LB.
  • the second antenna ANT2 may be configured to operate in a medium band (MB) and/or a high band (HB).
  • MB medium band
  • HB high band
  • MHB middle band
  • MHB high band
  • a first output of the first filter bank FB1 connected to the second antenna ANT2 may be connected to the second switch SW2 .
  • the second output of the first filter bank FB1 connected to the second antenna ANT2 may be connected to the third switch SW3 .
  • the third output of the first filter bank FB1 connected to the second antenna ANT2 may be connected to the fourth switch SW4 .
  • the output of the second switch SW2 may be connected to the input of the second front end module FEM2 operating in the LB band.
  • the second output of the third switch SW3 may be connected to the input of the third front end module FEM3 operating in the MHB band.
  • the first output of the third switch SW3 may be connected to the input of the fourth front end module FEM4 operating in the 5G first band B1 .
  • the third output of the third switch SW3 may be connected to an input of the fifth front-end module FEM5 operating in the MHB band operating in the 5G first band B1.
  • the first output of the fourth switch SW4 may be connected to the input of the third switch SW3 .
  • the second output of the fourth switch SW4 may be connected to the input of the third front end module FEM3 .
  • the third output of the fourth switch SW4 may be connected to the input of the fifth front end module FEM5 .
  • the third antenna ANT3 may be configured to transmit and/or receive signals in the LB band and/or the MHB band.
  • a first output of the second filter bank FB2 connected to the second antenna ANT2 may be connected to an input of the fifth front end module FEM5 operating in the MHB band.
  • the second output of the second filter bank FB2 connected to the second antenna ANT2 may be connected to the fifth switch SW5 .
  • the output of the fifth switch SW5 may be connected to the input of the sixth front end module FEM6 operating in the LB band.
  • the fourth antenna ANT4 may be configured to transmit and/or receive a signal in a 5G band.
  • the fourth antenna ANT4 may be configured to perform frequency multiplexing (FDM) on the second band B2 as the transmission band and the third band B3 as the reception band.
  • FDM frequency multiplexing
  • the second band B2 may be an n77 band
  • the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application.
  • the fourth antenna ANT4 may be connected to the sixth switch SW6 , and one output of the sixth switch SW6 may be connected to the receiving port of the seventh front end module FEM7 . Meanwhile, the other one of the outputs of the sixth switch SW6 may be connected to a transmission port of the seventh front end module FEM7 .
  • the fifth antenna ANT5 may be configured to transmit and/or receive signals in a WiFi band.
  • the fifth antenna ANT5 may be configured to transmit and/or receive a signal in the MHB band.
  • the fifth antenna ANT5 may be connected to the third filter bank FB3 , and the first output of the third filter bank FB3 may be connected to the first WiFi module WiFi FEM1 . Meanwhile, the second output of the third filter bank FB3 may be connected to the fourth filter bank FB5. In addition, the first output of the fourth filter bank (FB5) may be connected to the first WiFi module (WiFi FEM1). Meanwhile, the second output of the fourth filter bank FB5 may be connected to the eighth front-end module FEM8 operating in the MHB band through the seventh switch SW7 . Accordingly, the fifth antenna ANT5 may be configured to receive the WiFi band and 4G/5G band signals.
  • the sixth antenna ANT6 may be configured to transmit and/or receive signals in a WiFi band.
  • the sixth antenna ANT6 may be configured to transmit and/or receive a signal in the MHB band.
  • the sixth antenna ANT6 may be connected to the fifth filter bank FB5 , and the first output of the fifth filter bank FB5 may be connected to the second WiFi module WiFi FEM2 . Meanwhile, a second output of the fifth filter bank FB5 may be connected to the sixth filter bank FB6 .
  • the first output of the sixth filter bank (FB5) may be connected to the second WiFi module (WiFi FEM2). Meanwhile, the second output of the sixth filter bank FB5 may be connected to the ninth front-end module FEM9 operating in the MHB band through the eighth switch SW8. Accordingly, the sixth antenna ANT6 may be configured to receive the WiFi band and 4G/5G band signals.
  • the baseband processor 1400 may control the antenna and the transceiver circuit 1250 to perform multiple input/output (MIMO) or diversity in the MHB band.
  • MIMO multiple input/output
  • the adjacent second antenna ANT2 and the third antenna ANT3 may be used in the diversity mode for transmitting and/or receiving the same information as the first signal and the second signal.
  • antennas disposed on different sides may be used.
  • the baseband processor 1400 may perform MIMO through the second antenna ANT2 and the fifth antenna ANT5.
  • the baseband processor 1400 may perform MIMO through the second antenna ANT2 and the sixth antenna ANT6 .
  • the seventh antenna ANT7 may be configured to receive a signal in a 5G band.
  • the seventh antenna ANT7 may be configured to receive the second signal of the second band B2 and the third signal of the third band B3 .
  • the second band B2 may be an n77 band
  • the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application.
  • the seventh antenna ANT7 may operate as a transmit antenna in addition to a receive antenna.
  • the ninth switch SW9 may be configured as an SP2T switch or an SP3T switch. When implemented as an SP3T switch, one output port can be used as a test port. Meanwhile, the first and second output ports of the ninth switch SW9 may be connected to an input of the tenth front end module FEM10 .
  • the eighth antenna ANT8 may be configured to transmit and/or receive signals in a 4G band and/or a 5G band.
  • the eighth antenna ANT8 may be configured to transmit/receive a signal of the second band B2.
  • the eighth antenna ANT8 may be configured to transmit/receive a signal of the third band B2.
  • the second band B2 may be an n77 band
  • the third band B3 may be an n79 band, but the limitation thereto may be changed according to an application.
  • the eighth antenna ANT8 may be connected to the eleventh front end module FEM11 through the tenth switch SW10.
  • the plurality of antennas ANT1 to ANT8 may be connected to an impedance matching circuit MC1 to MC8 to operate in a plurality of bands.
  • the variable element may be a variable capacitor configured to change the capacitance by varying the voltage.
  • the two or more variable elements may be two or more variable capacitors or a combination of a variable inductor and a variable capacitor.
  • the baseband processor 1400 may perform MIMO through at least one of a second band B2 and a third band B3 among 5G bands.
  • the baseband processor 1400 may be configured to operate via two or more of the first antenna ANT1 , the fourth antenna ANT4 , the seventh antenna ANT7 , and the eighth antenna ANT8 in the second band B2 . MIMO can be performed.
  • the baseband processor 1400 performs MIMO through at least two of the first antenna ANT1, the fourth antenna ANT4, the seventh antenna ANT7, and the eighth antenna ANT8 in the third band B3. can be done Accordingly, the baseband processor 1400 may control the plurality of antennas and the transceiver circuit 1250 to support MIMO up to 4RX as well as 2RX in the 5G band.
  • the electronic device may be configured to provide 5G communication services in various frequency bands. Recently, attempts have been made to provide a 5G communication service using the Sub6 band below the 6GHz band. Meanwhile, some of the LTE frequency bands may be allocated to provide 5G communication services.
  • 5G NR New Radio
  • a base station transmits a reference signal, particularly a sounding reference signal (SRS), in order to monitor the channel condition and determine an antenna to transmit and receive data accordingly.
  • SRS sounding reference signal
  • the terminal transmits such SRS information
  • the terminal needs to transmit sequentially through different antenna ports. Therefore, in order to sequentially transmit SRS information through different antenna ports, hardware for transmitting signals for each antenna must be provided.
  • the structure of the transceiver currently discussed in 5G NR is an asymmetric structure such as 1T4R, 2T4R, and the like.
  • the transmitting system is implemented with one or two transmitting systems, which are simpler than the front-end of the receiving system.
  • the present invention aims to solve the above and other problems.
  • Another object of the present invention is to provide an electronic device capable of transmitting a reference signal through all antenna ports.
  • Another object of the present invention is to provide a method for configuring and controlling an electronic device capable of transmitting a reference signal through all antenna ports even in a single transmission system including one power amplifier.
  • SRS Tx Switch which is currently an optional feature of 5G NR. To support this, a hardware system for individual transmission for each of the four antennas can be applied.
  • the present invention is an idea proposed to simultaneously support LTE 4x4 MIMO data transmission and 5G NR FR1 SRS 1T4R TX Switching with 4 antennas.
  • LTE B41 4x4 MIMO and 5G NR n41 SRS TX Switching LTE B25+66 4x4 MIMO and 5G NR n41 1T4R SRS TX Switching.
  • the present invention is an idea proposed to support 5G NR FR1 SA UL-MIMO 2T4R while supporting E 4x4 MIMO data transmission and 5G NR FR1 SRS 1T4R TX Switching using 4 antennas.
  • FIG. 7 shows a multiple transmission/reception system having a plurality of antennas and a switch operating in an LTE/5G communication system according to an example.
  • the first to third antennas ANT1 to ANT3 are connected to the output of the first switch SW1 .
  • the fourth to sixth antennas ANT4 to ANT6 are connected to the output of the second switch SW2 .
  • a first signal of the first communication system 4G LTE may be received through the fourth antenna ANT4. Meanwhile, the second signal of the first communication system may be received through the sixth antenna ANT6. Also, a third signal of the first communication system may be received through the first antenna ANT1. Also, a fourth signal of the first communication system may be received through the third antenna ANT3.
  • the first to fourth signals are signals of the LTE B3 band, and thus may support up to 4x4 MIMO.
  • the first signal of the second communication system 5G NR may be received through the second antenna ANT2. Meanwhile, a second signal of the second communication system may be received through the third antenna ANT3. Also, a third signal of the second communication system may be received through the fifth antenna ANT5. Also, a fourth signal of the second communication system may be received through the sixth antenna ANT6.
  • the first to fourth signals are signals of the 5G N41 band, and thus can support up to 4x4 MIMO.
  • a diplexer is installed in the first switch SW1 to separate the second signal of the second communication system (5G NR) and the fourth signal of the first communication system (4G LTE). It may be disposed on the input terminal.
  • a diplexer is disposed at the input terminal of the second switch SW2 to separate the fourth signal of the second communication system (5G NR) and the second signal of the first communication system (4G LTE).
  • the B3 PRx MIMO and B3 DRx MIMO paths may be disabled. Accordingly, MIMO supported in the first communication system (4G LTE) in the 4G/5G dual connectivity (EN-DC) state may be downgraded to 2x2 MIMO. Accordingly, the corresponding path may be shared with a sounding reference signal (SRS) switch path through the same switch.
  • SRS sounding reference signal
  • the second input terminal of the first switch SW1 may be connected to the third antenna ANT3 through a third output terminal for SRS transmission. Therefore, when SRS is transmitted, the fourth signal of the first communication system (4G LTE) cannot be received through the second antenna (ANT2).
  • the second input terminal of the first switch SW1 may be connected to the fifth antenna ANT5 through the fourth output terminal and the second switch SW2. there is. Accordingly, even when SRS is transmitted, the fourth signal of the first communication system 4G LTE may be received through the second antenna ANT2. However, even in this case, a conflict may occur between the SRS signal and the B3 PRx (B3 RX1 (TX)) signal transmitted through the second switch SW.
  • B3 RX1 (TX) B3 RX1 (TX)
  • the LTE antenna and the 5G NR FR1 antenna must be separated. Accordingly, at least six antennas may be required to support the first communication system (4G LTE) and the second communication system (5G NR).
  • SRS can support only 1T2R and LTE can support only 2x2 MIMO.
  • FIG. 8 shows a front-end structure capable of supporting SRS transmission and 4G/5G signal transmission and reception according to an embodiment.
  • FIG. 9A shows a conceptual diagram for 4G/5G dual transmission in 5G non-standalone (NSA) mode.
  • FIG. 9B shows an architecture of a switching scheme in a 1T4R structure for SRS transmission.
  • FIG. 9C shows a time frame structure in which SRS is designed to be transmitted in different time intervals according to an example.
  • the electronic device is capable of uplink (UL) transmission and downlink (DL) reception through SRS Tx in a primary cell.
  • the electronic device can receive downlink (DL) through secondary cells.
  • control of downlink (DL) reception is not performed through the SRS Tx.
  • carrier aggregation (TDD-CA) is possible through downlink (DL) reception.
  • TDD-CA through downlink (DL) may be implemented as intra-band CA within the same band (or air interface) and inter-band CA of a different band (or air interface).
  • SRS sounding reference signal
  • the SRS transmission may be performed as a fast hopping SRS transmission in the time and/or frequency domain.
  • SRS transmission is to transmit a series of know symbols through an antenna of a UE to calibrate a multiple input/output (MIMO) channel and improve downlink (DL) SNR. This process can improve MIMO and beamforming operations.
  • SRS carrier switching (SRS-CS) assists a base station (eNB) in acquiring channel state information (CSI) of a secondary TDD cell in a TDD LTE CA scenario.
  • CSI channel state information
  • CSI channel state information
  • SRS-TS SRS Transmit Switching
  • gNB 5G base station
  • CSI secondary downlink cell
  • MU-MIMO multi-user MIMO
  • FIG. 9B shows an architecture for fast SRS hopping transmission.
  • fast SRS hopping transmission is possible through any one of a plurality of antenna ports (AP) in the 1T4R structure.
  • this scheme requires an RF switch that routes the UE transmitter chain to each of the remaining 3 Rx antenna ports.
  • the RF switch between the power amplifier PA and the plurality of antenna ports AP1 to AP4 may increase signal loss at the front end.
  • the RF switch not only causes a reduction in transmit power in the transmitter, but also reduces the SNR in the receiver, so that the performance of the receiver is degraded.
  • FIG. 8 shows a front-end structure capable of supporting SRS transmission and 4G/5G signal transmission and reception according to an embodiment.
  • a front-end structure capable of supporting 4G/5G signal transmission and reception is not limited to SRS transmission, but is also applicable to transmitting a reference signal (RS).
  • the reference signal RS transmitted from the electronic device may refer to a demodulation reference signal (DMRS) or a phase tracking reference signal (PTRS) in addition to the SRS.
  • the reference signal RS transmitted from the electronic device may include uplink control information (UCI) transmitted in the uplink (UL) in addition to the reference signal transmitted in the uplink (UL).
  • UCI uplink control information
  • an electronic device transmitting a reference signal includes first and second antennas ANT1 and ANT2, a first transceiver circuit (FEM1), and a second transceiver circuit ( FEM2). Meanwhile, the electronic device may further include third and fourth antennas ANT3 and ANT4 and third and fourth transceiver circuits FEM3 and FEM4 . Also, the electronic device may be configured to further include an RFIC 1250 and a baseband processor 1400 corresponding to a modem.
  • the RFIC 1250 may include a controller within the plurality of front-end modules and a controller 1251 for controlling a switch module controlling SRS transmission.
  • the controller 1251 may be a General RF Control (GRFC) or a Mobile Industry Processor Interface (MIPI) controller.
  • GRFC General RF Control
  • MIPI Mobile Industry Processor Interface
  • the type of the controller 1251 is not limited thereto and may be changed according to application.
  • the RFIC 1250 may include a plurality of transmission/reception modules (TX or RX) for each band or for each antenna.
  • the first transmission module TX1 may interface with a power amplifier (PA) in the first transceiver circuit FEM1 .
  • the first receiving module RX1 may interface with the receiving unit RX in the first transceiver circuit FEM1 .
  • the second transmission module TX2 may interface with a power amplifier (PA) in the third transceiver circuit FEM3 .
  • the second receiving module RX2 may interface with the receiving unit RX in the third transceiver circuit FEM3 .
  • the third reception module RX3 may interface with the low noise amplification module LNA in the second transceiver circuit FEM2 .
  • the fourth receiving module RX4 may interface with the low noise amplifying module LNA in the fourth transceiver circuit FEM4 .
  • the baseband processor 1400 may further include a controller 1401 for transmitting RS or SRS.
  • the controller 1401 in the baseband processor 1400 may control a controller in the plurality of front-end modules and a switch module controlling SRS transmission through the controller 1251 in the RFIC 1250 .
  • FIG. 10A illustrates a TDD time interval in which a transmission interval and a reception interval are divided according to an embodiment.
  • FIG. 10B shows a time and frequency domain in which SRS information and RS information are transmitted according to an embodiment.
  • a time division duplex (TDD) scheme may be used in a series of processes of transmitting a reference signal and transmitting and receiving data with a base station through a corresponding antenna.
  • TDD time division duplex
  • the uplink channel characteristic is also applicable to the downlink channel characteristic.
  • the reference signal transmission method according to the present invention can be applied to a TDD method in which uplink/downlink symmetry or reciprocity is established.
  • the present invention is not limited to the TDD scheme and may be applied to a frequency division duplex (FDD) scheme in consideration of a difference in characteristics between uplink and downlink.
  • FDD frequency division duplex
  • the baseband processor 1400 may control to transmit SRS information to the base station through the first to fourth antennas ANT1 to ANT4 in the transmission period A.
  • a frequency band in which SRS information is transmitted may be transmitted through a maximum frequency band transmittable by an electronic device.
  • the SRS transmission timing at which the SRS is transmitted may be a predetermined specific symbol interval within the subframe (eg, a specific symbol interval within the control region), but is not limited thereto.
  • the frequency domain in which the SRS is transmitted is the entire frequency domain (maximum frequency band), and thus the SRS can be transmitted in a wide band.
  • the UE1 may transmit the first SRS through the entire frequency band from the first antenna ANT1. Meanwhile, at the second SRS transmission timing, the UE1 may transmit the first SRS from the second antenna ANT1 through some frequency bands f3 and f4. Meanwhile, at the second SRS transmission timing, the UE2 may transmit the second SRS through the remaining frequency bands f1 and f2.
  • the base station may divide the entire frequency band to receive SRS information for UE1 and UE2. Accordingly, the base station has the advantage of being able to dynamically allocate antennas and frequency resources to a plurality of terminals in consideration of the channel environment and the bandwidth required by the terminal. Accordingly, there is an advantage that resource allocation can be completed at once by transmitting and receiving SRS information by dividing the bandwidth, instead of determining the channel state using both SRS and CSI-RS.
  • both UE 1 and UE2 transmit SRS in some frequency band f3 at the third SRS transmission timing, there is an advantage in that it is possible to identify a channel state and allocate resources in consideration of mutual interference in the corresponding frequency band. Meanwhile, when UE2 rather than UE1 requests broadband communication, the frequency band for UE2 may be extended at the fourth SRS transmission timing.
  • Such a reference signal transmission method is applicable to the reference signal RS transmitted and received through the data area A2 in addition to information transmitted and received through the control area A1 such as SRS information.
  • one UE may transmit the SRS over the entire frequency band.
  • the neighboring terminal may operate in a muting mode that does not transmit any data at the corresponding SRS transmission timing.
  • the corresponding SRS transmission resource may be regarded as being punctured.
  • another terminal cannot transmit data through the punctured SRS transmission resource, but interference measurement through signal measurement in the corresponding SRS transmission resource is possible for another terminal in the same cell or adjacent cell to measure the interference level.
  • the interference measured by another terminal (or another entity such as a base station) in the cell is intra-cell interference (intra-cell interference).
  • interference measured by another terminal (or another entity such as a base station) of a neighboring cell outside the cell is inter-cell interference.
  • the base station may determine intra-cell interference and channel state by receiving SRS information of the corresponding terminal, and may determine inter-cell interference by receiving SRS information of another terminal in a neighboring cell.
  • interference information such as SRS information of another terminal in a neighboring cell may be directly received or exchanged with an ingen cell base station through an X2 interface.
  • the base station can determine through which resources (time, frequency, antenna port) to effectively transmit data to the corresponding terminal in consideration of interference to adjacent cells in addition to the corresponding cell.
  • the first and second antennas ANT1 and ANT2 may be configured to be operable in the first communication system and the second communication system.
  • the first communication system may be a 4G communication system and the second communication system may be a 5G communication system.
  • the first communication system and the second communication system are not limited thereto, and may be any communication systems that can share an antenna and a transceiver circuit.
  • the first antenna ANT1 may operate in the 5G Tx/Rx band and the LTE Rx band.
  • the second antenna ANT2 may operate in the LTE Rx band and the 5G Rx band.
  • the first transceiver circuit FEM1 may be operatively coupled to the first antenna ANT1 and configured to be operable in the first communication system and the second communication system.
  • the first transceiver circuit FEM1 may operate in the 5G Tx/Rx band and the LTE Rx band.
  • the second transceiver circuit FEM2 may be operatively coupled to the second antenna ANT2 and configured to be operable in the first communication system and the second communication system.
  • the second transceiver circuit FEM2 may operate in the LTE Rx band and the 5G Rx band.
  • the baseband processor 1400 is operatively coupled to the first transceiver circuit FEM1 and the second transceiver circuit FEM2, and the first transceiver circuit FEM1 and the second transceiver circuit ( FEM2). 8 and 9C , the baseband processor 1400 configures the first transceiver circuit FEM1 to transmit the reference signal RS through the first antenna ANT1 in a first time duration.
  • the baseband processor 1400 may control the first transceiver circuit FEM1 to transmit the sounding reference signal SRS through the first antenna ANT1 in the first time interval.
  • the first time interval in which the SRS is transmitted may be any one of a plurality of symbols.
  • the first time period in which the SRS is transmitted is not limited thereto and may be any one of a plurality of slots.
  • a sounding reference signal may be transmitted through an OFDM or SC-FDMA symbol located last on the time axis in one subframe.
  • SRSs of multiple UEs transmitted through the last OFDM or SC-FDMA of the same subframe can be distinguished according to frequency positions/sequences.
  • SRS is transmitted periodically or aperiodically.
  • a configuration for periodic transmission of the SRS is configured by a cell-specific SRS parameter and a UE-specific SRS parameter.
  • Cell-specific SRS parameters in other words, cell-specific SRS configuration
  • UE-specific SRS parameters in other words, UE-specific SRS configuration
  • the cell-specific SRS parameter informs the UE of a subframe occupied for SRS transmission in the cell
  • the UE-specific SRS parameter informs the subframe that the UE will actually use among subframes occupied for SRS.
  • the UE periodically transmits the SRS through a specific symbol (eg, the last symbol) of the subframe designated by the UE-specific SRS parameter.
  • the cell-specific SRS parameters include srs-BandwidthConfig and srs-SubframeConfig.
  • srs-BandwidthConfig indicates information on a frequency band in which SRS can be transmitted
  • srs-SubframeConfig indicates information (eg, transmission period/offset) on a subframe in which SRS can be transmitted.
  • a subframe in which an SRS can be transmitted within a cell is periodically set within the frame.
  • the UE-specific SRS parameters include srs-Bandwidth, srs-HoppingBandwidth, freqDomainPosition, and srs-ConfigIndex.
  • srs-Bandwidth indicates a value used to set the frequency band in which the corresponding terminal must transmit the SRS.
  • srs-HoppingBandwidth indicates a value used to configure frequency hopping of SRS.
  • FreqDomainPosition indicates a value used to determine the frequency position at which the SRS is transmitted.
  • srs-ConfigIndex indicates a value (eg, transmission period/offset) used to configure a subframe in which the corresponding UE is to transmit SRS.
  • a subframe in which aperiodic SRS may be transmitted may be periodically located within subframes indicated by a cell-specific parameter.
  • a subframe in which aperiodic SRS can be transmitted may be given by an SRS transmission period/offset (Toffset).
  • the aperiodic SRS may be indicated by the UL grant PDCCH as shown in FIG. 9C .
  • the UL may transmit the SRS in the nearest aperiodic SRS transmittable subframe after 4 subframes from the subframe in which the aperiodic SRS request is received.
  • 5G uRLLC communication it may be indicated by a specific PDCCH even in a grant-free configuration.
  • the UL may transmit the SRS in the nearest aperiodic SRS transmittable subframe after 4 subframes from the subframe in which the aperiodic SRS request is received.
  • the UE transmits the PUSCH/PUCCH in the corresponding subframe/band, regardless of whether or not the SRS is actually transmitted.
  • PUSCH/PUCCH is not transmitted in the last symbol of .
  • PUSCH/PUCCH is rate-matched or punctured with respect to a symbol for SRS transmission (ie, the last symbol).
  • the baseband processor 1400 may control the second transceiver circuit FEM2 to transmit the reference signal RS through the second antenna ANT2 in the second time interval.
  • the baseband processor 1400 connects the second transceiver circuit FEM2 to the path in the first transceiver circuit FEM1 to transmit the reference signal RS through the second antenna ANT2 in the second time interval. It can be controlled through the switch (P-SW).
  • the baseband processor 1400 may control the second transceiver circuit FEM2 to transmit the sounding reference signal SRS through the second antenna ANT2 in the second time interval.
  • the second time interval in which the SRS is transmitted may be any one of a plurality of symbols.
  • the second time period in which the SRS is transmitted is not limited thereto and may be any one of a plurality of slots.
  • the SRS (or RS) transmitted through the first antenna ANT1 in the first time interval and the SRS (or RS) transmitted through the second antenna ANT2 in the second time interval may consist of the same information. there is.
  • the SRS (or RS) transmitted through different antennas may be UE-specific.
  • the SRS (or RS) transmitted through the first antenna ANT1 in the first time interval and the SRS (or RS) transmitted through the second antenna ANT2 in the second time interval may be composed of different information.
  • SRS transmitted through different antennas may be antenna-specific.
  • the electronic device may further include third and fourth antennas ANT3 and ANT4 and third and fourth transceiver circuits FEM3 and FEM4.
  • the third and fourth antennas ANT3 and ANT4 may be configured to be operable in the first communication system and the second communication system.
  • the third antenna ANT3 may operate in the LTE Tx/Rx band and the 5G Rx band.
  • the fourth antenna ANT4 may operate in the LTE Rx band and the 5G Rx band.
  • the third transceiver circuit FEM3 may be operatively coupled to the third antenna ANT3 and configured to be operable in the first communication system and the second communication system.
  • the third transceiver circuit FEM3 may operate in the LTE Tx/Rx band and the 5G Rx band.
  • the fourth transceiver circuit FEM4 may be operatively coupled to the fourth antenna ANT4 and configured to be operable in the first communication system and the second communication system.
  • the fourth transceiver circuit FEM4 may operate in the LTE Rx band and the 5G Rx band.
  • the baseband processor 1400 is operatively coupled to the third transceiver circuit FEM3 and the fourth transceiver circuit FEM4, and the third transceiver circuit FEM3 and the fourth transceiver circuit FEM3 and the fourth transceiver circuit ( FEM4). 8 and 9C , the baseband processor 1400 may control the third transceiver circuit FEM3 to transmit the reference signal RS through the third antenna ANT3 in the third time interval. .
  • the baseband processor 1400 may control the third transceiver circuit FEM3 to transmit the sounding reference signal SRS through the third antenna ANT3 in the third time interval.
  • the third time interval in which the SRS is transmitted may be any one of a plurality of symbols.
  • the third time period in which the SRS is transmitted is not limited thereto and may be any one of a plurality of slots.
  • the baseband processor 1400 may control the fourth transceiver circuit FEM4 to transmit the reference signal RS through the fourth antenna ANT4 in the fourth time interval.
  • the baseband processor 1400 may control the fourth transceiver circuit FEM4 to transmit the sounding reference signal SRS through the fourth antenna ANT4 in the fourth time interval.
  • the fourth time interval in which the SRS is transmitted may be any one of a plurality of symbols.
  • the fourth time period in which the SRS is transmitted is not limited thereto and may be any one of a plurality of slots.
  • the output of the path switch module P-SW of the first transceiver circuit FEM1 may be connected to the first antenna ANT1 in the first time interval. Accordingly, the NSA 5G SRS (SRS #1) and the SA 5G SRS (SRS #1) may be transmitted through the first antenna ANT1 in the first time interval.
  • the output of the path switch module P-SW of the first transceiver circuit FEM1 in the second time interval to the fourth time interval is respectively output from the second transceiver circuit FEM2 to the fourth transceiver circuit FEM4.
  • the input of the switch module SW in the third transceiver circuit FEM3 or the fourth transceiver circuit FEM4 is the output of the receive amplification module LNA or the path switch module of the first transceiver circuit FEM1 ( Any one of the outputs of P-SW) may be configured to be connected.
  • the SRS (or RS) transmitted through the third antenna ANT3 in the third time period and the SRS (or RS) transmitted through the fourth antenna ANT2 in the fourth time period may consist of the same information. there is.
  • the SRS (or RS) transmitted through different antennas may be UE-specific.
  • the SRS (or RS) transmitted through the first antenna ANT1 in the first time interval and the SRS (or RS) transmitted through the second antenna ANT2 in the second time interval may be composed of different information.
  • SRS (or RS) transmitted through different antennas may be antenna-specific.
  • the first transceiver circuit FEM1 may be configured to include a power amplifier (PA), a transmit/receive switch module TR-SW, and a filter and a path switch module P-SW.
  • PA power amplifier
  • TR-SW transmit/receive switch module
  • P-SW path switch module
  • the third transceiver circuit FEM3 may include first and second power amplification modules PA1 and PA2 operating in the first and second bands.
  • the first band and the second band may be LTE middle band (MB) and LTE high band (HB), respectively, but are not limited thereto.
  • the third transceiver circuit FEM3 may further include an antenna switch module ASM.
  • the antenna switch module ASM may be configured to be operatively coupled to the first and second power amplification modules PA1 and PA2 and the path switch module P-SW of the first transceiver circuit FEM1. Accordingly, the SRS (or RS) may be transmitted through the third antenna ANT3 in the third time interval.
  • the first output terminal of the path switch module P-SW of the first transceiver circuit FEM1 is connected to the antenna switch module ASM. Accordingly, the SRS (or RS) may be transmitted through the third antenna ANT3 in the third time interval.
  • the second transceiver circuit FEM2 and the fourth transceiver circuit FEM4 may be configured as a receiver circuit operating in a 4G/5G reception band.
  • the second transceiver circuit FEM2 or the fourth transceiver circuit FEM4 may include a reception amplifying module (LNA), a switch module (SW), and an antenna switch module (ASM). .
  • LNA reception amplifying module
  • SW switch module
  • ASM antenna switch module
  • the receive amplification module (LNA) may be configured to operate in any one of the first and second bands. That is, the receive amplification module (LNA) may be configured to low-noise amplify a signal in any one of the first and second bands.
  • the switch module SW may be a path switch module. The switch module SW may be configured to be operatively coupled to the path switch module P-SW of the first transceiver circuit FEM1 .
  • the antenna switch module (ASM) may be configured to be operatively coupled to the receive amplification module (LNA) and the switch module (SW).
  • the SRS (or RS) may be transmitted through the second antenna ANT2 in the second time interval.
  • the third output terminal of the path switch module P-SW in the first transceiver circuit FEM1 is connected to the switch module SW of the second transceiver circuit FEM2 . Accordingly, the SRS (or RS) may be transmitted through the second antenna ANT2 in the second time interval.
  • the SRS (or RS) may be transmitted through the fourth antenna ANT2 in the fourth time interval.
  • the fourth output terminal of the path switch module P-SW in the first transceiver circuit FEM1 is connected to the switch module SW of the fourth transceiver circuit FEM4. Accordingly, the SRS (or RS) may be transmitted through the fourth antenna ANT4 in the fourth time interval.
  • the transceiver structure of FIG. 8 does not require 1) an additional antenna for SRS transmission.
  • the transceiver structure of FIG. 8 may support 5G NR SRS (eg, n41 SRS) while supporting LTE MB 4x4 MIMO 2).
  • the transceiver structure of FIG. 8 may simultaneously support 5G NR 1T4R and 2T4R capable of supporting 3) 5G NR SRS (eg, n41 SRS).
  • SRS may be applied to different input terminals of the switch module SW provided in the second transceiver circuit FEM2 and the fourth transceiver circuit FEM4 in addition to LTE/5G RX.
  • the SRS applied to the input terminal of the switch module SW may be an NSA 5G NR SRS operating in a non-standalone (NSA) mode.
  • the SA 5G NR SRS operating in a standalone (SA) mode may be applied to another input terminal of the switch module SW disclosed herein.
  • FIG. 11 shows the internal configuration of a front-end module capable of operating in NSA and SA mode.
  • FIG. 12 shows a circuit configuration of a front-end module capable of operating in NSA and SA modes according to an embodiment.
  • the reception front-end module R-FEM may be a second transceiver circuit FEM2 and a fourth transceiver circuit FEM4 .
  • the reception front-end module (R-FEM) includes a reception amplifying module (reception amplifying module, LNA), a switch module (SP3T) and an antenna switch module (ASM) can do.
  • the reception front-end module R-FEM may further include a filter bank FB1 disposed between the switch module SP3T and the antenna switch module ASM.
  • the reception front-end module R-FEM may further include a filter bank FB2 disposed between the switch module SP3T and the antenna switch module ASM.
  • the filter bank FB1 of FIG. 11(a) may be composed of B25/66 Dual SAW Filter + B41 T/RX Filter.
  • the filter bank FB2 of FIG. 11B may be composed of a triple filter (B25_RX+66_RX+B41 TX).
  • the reception front-end module may include a reception amplifying module (LNA), a switch module (SW), and an antenna switch module (ASM).
  • LNA reception amplifying module
  • SW switch module
  • ASM antenna switch module
  • the receive amplification module (LNA) may be configured to operate in any one of the first and second bands. That is, the receive amplification module (LNA) may be configured to low-noise amplify a signal in any one of the first and second bands.
  • the switch module SW may be a path switch module.
  • the switch module SP3T may be configured to be operatively coupled to the path switch module P-SW of the first transceiver circuit FEM1 .
  • the antenna switch module (ASM) may be configured to be operatively coupled to the receive amplification module (LNA) and the switch module (SW). in this case,
  • the first terminal of the switch module SP3T may be connected to one of the input terminals of the reception amplifier LNA.
  • the NSA (n41) SRS TX signal may be applied to the second terminal of the switch module SP3T.
  • the SA (n41) SRS TX signal may be applied to the third terminal of the switch module SP3T.
  • FIGS. 11 and 12 A structure of a transceiver capable of supporting the NSA SRS and the SA SRS will be described as shown in FIGS. 11 and 12 .
  • FIG. 13 shows an NSA SRS and a front-end structure capable of supporting the SA SRS according to an embodiment.
  • 14 illustrates a time frame structure in which different types of SRSs are designed to be transmitted in different time intervals according to an example.
  • a front-end structure capable of supporting 4G/5G signal transmission and reception is not limited to SRS transmission, but is also applicable to transmitting a reference signal (RS).
  • the reference signal RS transmitted from the electronic device may refer to a demodulation reference signal (DMRS) or a phase tracking reference signal (PTRS) in addition to the SRS.
  • the reference signal RS transmitted from the electronic device may include uplink control information (UCI) transmitted in the uplink (UL) in addition to the reference signal transmitted in the uplink (UL).
  • UCI uplink control information
  • an electronic device transmitting a reference signal includes first and second antennas ANT1 and ANT2, a first transceiver circuit (FEM1), and a second transceiver circuit ( FEM2). Meanwhile, the electronic device may further include third and fourth antennas ANT3 and ANT4 and third and fourth transceiver circuits FEM3 and FEM4 . Also, the electronic device may be configured to further include an RFIC 1250 and a baseband processor 1400 corresponding to a modem. The overlapping detailed description of the first to fourth antennas ANT1 to ANT4 and the first to fourth transceiver circuits FEM1 to FEM4 will be replaced with the description of FIG. 8 .
  • the electronic device may be configured to further include a fifth antenna ANT5 and a fifth transceiver circuit FEM5.
  • the fifth antenna ANT5 may be configured to be operable in the second communication system.
  • the fifth antenna ANT5 may operate in a 5G Tx/Rx band.
  • the fifth transceiver circuit FEM5 may be operatively coupled to the fifth antenna ANT5, respectively, and configured to operate in the second communication system.
  • the fifth transceiver circuit FEM5 may operate in a 5G Tx/Rx band.
  • the fifth transceiver circuit FEM5 may be configured to include a power amplifier (PA), a transmit/receive switch module TR-SW, and a filter and a path switch module P-SW.
  • the power amplifier (PA), the transmit/receive switch module (TR-SW), and the filter may be configured to operate in the second communication system, 5G NR.
  • the reference signal RS transmitted in the first time interval to the fourth time interval may be a sounding reference signal (SRS) of the first type.
  • the first type of sounding reference signal SRS may be an NSA (n41) SRS.
  • the reference signal RS transmitted in the first and second specific time intervals may be the second type of sounding reference signal SRS.
  • the second type of sounding reference signal SRS may be an SA (n41) SRS.
  • the baseband processor 1400 may control the SRS of the second type to be simultaneously transmitted through different antennas in the first specific time interval.
  • the baseband processor 1400 includes the first transceiver circuit FEM1 and the first transceiver circuit FEM1 so that the second type of SRS is simultaneously transmitted through the first antenna ANT1 and the fifth antenna ANT5 in the first specific time interval.
  • the fifth transceiver circuit FEM5 may be controlled.
  • the baseband processor 1400 may control the SRS of the second type to be simultaneously transmitted through different antennas in the second specific time interval.
  • the baseband processor 1400 includes the second transceiver circuit FEM2 and the second transceiver circuit FEM2 so that the second type of SRS is simultaneously transmitted through the second antenna ANT2 and the third antenna ANT3 in the second specific time interval.
  • the third transceiver circuit FEM3 may be controlled.
  • the baseband processor 1400 is configured with the third transceiver circuit FEM3 and the third transceiver circuit FEM3 to simultaneously transmit the second type of SRS through the third antenna ANT3 and the fourth antenna ANT4 in the second specific time interval.
  • the fourth transceiver circuit FEM4 may be controlled.
  • the first type of SRS may be an NSA 5G SRS
  • the second type of SRS may be an SA 5G RS
  • the SRS of the first type and the SRS of the second type are not limited thereto, and may be SRS (or RS, control information) in different communication systems.
  • the first type of SRS and the second type of SRS may be different types of SRS (or RS, control information) in the same communication system.
  • the first specific time interval may be a first time interval
  • the second specific time interval may be a second time interval.
  • the second type of SRS (SRS #1, SRS #2) may be transmitted through the first antenna ANT1 and the fifth antenna ANT5 in the first time interval.
  • the second type of SRS (SRS #3, SRS #4) may be transmitted through the third antenna ANT3 and the fourth antenna ANT4.
  • the baseband processor 1400 may control a first type of SRS (NSA 5G SRS) and a second type of SRS (SA 5G SRS) to be transmitted simultaneously.
  • the baseband processor 1400 transmits the NSA 5G SRS (SRS #1) and the SA 5G SRS (SRS #1) through the first antenna ANT1 in the first time interval, and the fifth antenna ANT2 ) through the SA 5G SRS (SRS #2) can be controlled to be transmitted.
  • the first type of SRS (NSA 5G SRS) and the second type of SRS (SA 5G SRS) transmitted through the first antenna ANT1 may be different information that may be included in the same signal.
  • the baseband processor 1400 transmits the NSA 5G SRS (SRS #2) through the second antenna ANT2 in the second time interval, and the SA through the third antenna ANT3 and the fourth antenna ANT4. It can be controlled to transmit 5G SRS (SRS #3, SRS #4).
  • the output of the path switch module P-SW of the first transceiver circuit FEM1 may be connected to the first antenna ANT1 in the first time interval. Accordingly, the NSA 5G SRS (SRS #1) and the SA 5G SRS (SRS #1) may be transmitted through the first antenna ANT1 in the first time interval.
  • the output of the path switch module P-SW of the first transceiver circuit FEM1 in the second time interval to the fourth time interval is respectively output from the second transceiver circuit FEM2 to the fourth transceiver circuit FEM4.
  • the input of the switch module SW in the third transceiver circuit FEM3 or the fourth transceiver circuit FEM4 is the output of the receive amplification module LNA
  • the path switch module of the first transceiver circuit FEM1 Either the output of the P-SW or the output of the path switch module P-SW of the fifth transceiver circuit FEM5 may be configured to be connected.
  • the RFIC 1250 may include a plurality of transmission/reception modules (TX or RX) for each band or for each antenna.
  • the first transmission module TX1 may interface with a power amplifier (PA) in the first transceiver circuit FEM1 .
  • the first receiving module RX1 may interface with the receiving unit RX in the first transceiver circuit FEM1 .
  • the second transmission module TX2 may interface with a power amplifier (PA) in the third transceiver circuit FEM3 .
  • the second receiving module RX2 may interface with the receiving unit RX in the third transceiver circuit FEM3 .
  • the third reception module RX3 may interface with the low noise amplification module LNA in the second transceiver circuit FEM2 .
  • the fourth receiving module RX4 may interface with the low noise amplifying module LNA in the fourth transceiver circuit FEM4 .
  • the third transmission module TX3 may interface with a power amplifier (PA) in the fifth transceiver circuit FEM5 .
  • the fifth receiving module RX5 may interface with the receiving unit RX in the fifth transceiver circuit FEM5 .
  • PA power amplifier
  • FIG. 15 illustrates a block diagram of a wireless communication system to which the methods proposed in the present specification can be applied.
  • the wireless communication system includes a first communication device 910 and/or a second communication device 920 .
  • 'A and/or B' may be interpreted as having the same meaning as 'including at least one of A or B'.
  • the first communication device may represent the base station and the second communication device may represent the terminal (or the first communication device may represent the terminal and the second communication device may represent the base station).
  • Base station is a fixed station (fixed station), Node B, evolved-NodeB (eNB), gNB (Next Generation NodeB), BTS (base transceiver system), access point (AP: Access Point), gNB (general) NB), 5G system, network, AI system, RSU (road side unit), may be replaced by terms such as robot.
  • the terminal may be fixed or have mobility
  • UE User Equipment
  • MS Mobile Station
  • UT user terminal
  • MSS Mobile Subscriber Station
  • SS Subscriber Station
  • AMS Advanced Mobile
  • WT Wireless terminal
  • MTC Machine-Type Communication
  • M2M Machine-to-Machine
  • D2D Device-to-Device
  • vehicle robot
  • AI module may be replaced by terms such as
  • the first communication device and the second communication device include a processor 911,921, a memory 914,924, one or more Tx/Rx radio frequency modules 915,925, Tx processors 912,922, Rx processors 913,923 , including antennas 916 and 926 .
  • the processor implements the functions, processes and/or methods salpinned above. More specifically, in DL (communication from a first communication device to a second communication device), an upper layer packet from the core network is provided to the processor 911 .
  • the processor implements the functions of the L2 layer.
  • the processor provides multiplexing between logical channels and transport channels, allocation of radio resources to the second communication device 920, and is responsible for signaling to the second communication device.
  • a transmit (TX) processor 912 implements various signal processing functions for the L1 layer (ie, the physical layer).
  • the signal processing function facilitates forward error correction (FEC) in the second communication device, and includes coding and interleaving.
  • FEC forward error correction
  • the coded and modulated symbols are divided into parallel streams, each stream mapped to OFDM subcarriers, multiplexed with a reference signal (RS) in the time and/or frequency domain, and using Inverse Fast Fourier Transform (IFFT) are combined together to create a physical channel carrying a stream of time domain OFDMA symbols.
  • RS reference signal
  • IFFT Inverse Fast Fourier Transform
  • the OFDM stream is spatially precoded to generate multiple spatial streams.
  • Each spatial stream may be provided to a different antenna 916 via a separate Tx/Rx module (or transceiver) 915 .
  • Each Tx/Rx module may modulate an RF carrier with a respective spatial stream for transmission.
  • each Tx/Rx module (or transceiver) 925 receives a signal via each antenna 926 of each Tx/Rx module.
  • Each Tx/Rx module recovers information modulated with an RF carrier and provides it to a receive (RX) processor 923 .
  • the RX processor implements the various signal processing functions of layer 1.
  • the RX processor may perform spatial processing on the information to recover any spatial streams destined for the second communication device. If multiple spatial streams are destined for the second communication device, they may be combined into a single OFDMA symbol stream by multiple RX processors.
  • the RX processor uses a Fast Fourier Transform (FFT) to transform the OFDMA symbol stream from the time domain to the frequency domain.
  • the frequency domain signal includes a separate OFDMA symbol stream for each subcarrier of the OFDM signal.
  • the symbols and reference signal on each subcarrier are recovered and demodulated by determining the most probable signal placement points transmitted by the first communication device. These soft decisions may be based on channel estimate values.
  • the soft decisions are decoded and deinterleaved to recover the data and control signal originally transmitted by the first communication device on the physical channel. Corresponding data and control signals are provided to the processor 921 .
  • the UL (second communication device to first communication device) is handled in the first communication device 910 in a manner similar to that described with respect to the receiver function in the second communication device 920 .
  • Each Tx/Rx module 925 receives a signal via a respective antenna 926 .
  • Each Tx/Rx module provides an RF carrier and information to the RX processor 923 .
  • the processor 921 may be associated with a memory 924 that stores program code and data. Memory may be referred to as a computer-readable medium.
  • the electronic device transmitting the reference signal according to the present invention has an advantage in that it is possible to provide an electronic device capable of transmitting the reference signal through a specific antenna port in a specific time period while receiving the RX signal.
  • the antenna including the processors 180 , 1250 , and 1400
  • the design of the control unit controlling the same, and the control method thereof are computer-readable in the medium in which the program is recorded. It is possible to implement it as an existing code.
  • the computer-readable medium includes any type of recording device in which data readable by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • HDD Hard Disk Drive
  • SSD Solid State Disk
  • SDD Silicon Disk Drive
  • ROM Read Only Memory
  • RAM Compact Disc-ROM
  • CD-ROM compact disc-read only memory
  • magnetic tape floppy disk
  • optical data storage device etc.
  • carrier wave eg, transmission over the Internet
  • the computer may include the control unit 180 of the terminal. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention.

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Abstract

L'invention concerne un dispositif électronique destiné à émettre un signal de référence (RS) selon un mode de réalisation. Le dispositif électronique peut commander un circuit d'une première unité d'émission/réception de façon à émettre un signal de référence (RS) par l'intermédiaire d'une première antenne pendant une première durée, et peut commander un circuit d'une seconde unité d'émission/réception par l'intermédiaire d'un commutateur de trajet à l'intérieur du circuit de la première unité d'émission/réception de manière à émettre un signal de référence (RS) par l'intermédiaire d'une seconde antenne pendant une seconde durée.
PCT/KR2020/001412 2020-01-30 2020-01-30 Dispositif électronique fonctionnant dans une pluralité de systèmes de communication WO2021153819A1 (fr)

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PCT/KR2020/001412 WO2021153819A1 (fr) 2020-01-30 2020-01-30 Dispositif électronique fonctionnant dans une pluralité de systèmes de communication

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115149975A (zh) * 2022-06-27 2022-10-04 Oppo广东移动通信有限公司 射频前端模组、射频系统和通信设备
WO2023016216A1 (fr) * 2021-08-12 2023-02-16 Oppo广东移动通信有限公司 Module amplificateur, système radiofréquence et dispositif de communication

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160192376A1 (en) * 2013-08-07 2016-06-30 Interdigital Patent Holdings, Inc. Coverage enhancements of low cost mtc devices in uplink/downlink decoupled scenario
US9980271B2 (en) * 2015-03-14 2018-05-22 Qualcomm Incorporated Interference aware reciprocal channel sounding reference signal
US20190288727A1 (en) * 2018-03-16 2019-09-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Multiway Switch, Radio Frequency System, and Wireless Communication Device
US20200028638A1 (en) * 2018-07-20 2020-01-23 Qualcomm Incorporated Srs resource configuration enhancements
KR20200008599A (ko) * 2017-07-27 2020-01-28 엘지전자 주식회사 Srs를 전송하는 방법 및 이를 위한 단말

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160192376A1 (en) * 2013-08-07 2016-06-30 Interdigital Patent Holdings, Inc. Coverage enhancements of low cost mtc devices in uplink/downlink decoupled scenario
US9980271B2 (en) * 2015-03-14 2018-05-22 Qualcomm Incorporated Interference aware reciprocal channel sounding reference signal
KR20200008599A (ko) * 2017-07-27 2020-01-28 엘지전자 주식회사 Srs를 전송하는 방법 및 이를 위한 단말
US20190288727A1 (en) * 2018-03-16 2019-09-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Multiway Switch, Radio Frequency System, and Wireless Communication Device
US20200028638A1 (en) * 2018-07-20 2020-01-23 Qualcomm Incorporated Srs resource configuration enhancements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023016216A1 (fr) * 2021-08-12 2023-02-16 Oppo广东移动通信有限公司 Module amplificateur, système radiofréquence et dispositif de communication
CN115149975A (zh) * 2022-06-27 2022-10-04 Oppo广东移动通信有限公司 射频前端模组、射频系统和通信设备
CN115149975B (zh) * 2022-06-27 2023-12-26 Oppo广东移动通信有限公司 射频前端模组、射频系统和通信设备

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