WO2022086122A1 - Interruption par commutation d'antenne de transmission de srs - Google Patents

Interruption par commutation d'antenne de transmission de srs Download PDF

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Publication number
WO2022086122A1
WO2022086122A1 PCT/KR2021/014578 KR2021014578W WO2022086122A1 WO 2022086122 A1 WO2022086122 A1 WO 2022086122A1 KR 2021014578 W KR2021014578 W KR 2021014578W WO 2022086122 A1 WO2022086122 A1 WO 2022086122A1
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Prior art keywords
slot
cell
scs
khz
iii
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PCT/KR2021/014578
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English (en)
Korean (ko)
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황진엽
양윤오
이상욱
임수환
박진웅
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엘지전자 주식회사
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Publication of WO2022086122A1 publication Critical patent/WO2022086122A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H04W76/16—Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer

Definitions

  • This specification relates to mobile communication.
  • 3rd generation partnership project (3GPP) long-term evolution (LTE) is a technology for enabling high-speed packet communication. Many methods have been proposed to reduce costs for users and operators, which are LTE goals, to improve service quality, to expand coverage, and to increase system capacity. 3GPP LTE requires lower cost per bit, improved service availability, flexible use of frequency bands, simple structure, open interface, and proper power consumption of terminals as high-level requirements.
  • NR new radio
  • 3GPP identifies the necessary technical components to successfully standardize NR in a timely manner that meets both urgent market needs and the longer-term requirements set forth by the ITU radio communication sector (ITU-R) international mobile telecommunications (IMT)-2020 process. and should be developed Furthermore, NR must be able to use any spectral band up to at least 100 GHz which can be used for wireless communication even in the distant future.
  • ITU-R ITU radio communication sector
  • IMT international mobile telecommunications
  • NR targets a single technology framework that covers all deployment scenarios, usage scenarios and requirements, including enhanced mobile broadband (eMBB), massive machine type-communications (mMTC), ultra-reliable and low latency communications (URLLC), etc. do.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type-communications
  • URLLC ultra-reliable and low latency communications
  • NR must be forward compatible in nature.
  • the interference may be configured in consideration of the characteristics of the slot configuration.
  • the present specification may have various effects.
  • FIG. 1 shows an example of a communication system to which an implementation of the present specification is applied.
  • FIG. 2 shows an example of a wireless device to which the implementation of the present specification is applied.
  • FIG 3 shows an example of a wireless device to which the implementation of the present specification is applied.
  • FIG. 4 shows an example of a UE to which the implementation of the present specification is applied.
  • 5A to 5C are exemplary diagrams illustrating an exemplary architecture for a service of next-generation mobile communication.
  • FIG. 6 shows an example of subframe types in NR.
  • FIG. 7 is an exemplary diagram illustrating an example of SSB in NR.
  • FIG. 8 is an exemplary diagram illustrating an example of beam sweeping in NR.
  • FIG. 9 is an exemplary diagram illustrating an example of SRS configuration for SRS antenna switching.
  • 10 shows an example of interference in 1T2R and 2T4R terminals in EN-DC.
  • 11 shows an example of interference in a UE that does not need switching for 1T4R and PUSCH.
  • 12 and 13 show examples of interference in a UE requiring switching for 1T4R and PUSCH.
  • 15 shows an example of interference in 1T2R and 2T4R terminals in an NR PSCell or Scell.
  • 16 shows an example of interference in a UE that does not need switching for 1T4R and PUSCH.
  • 17 shows an example of interference in 1T2R and 2T4R terminals in an NR PSCell or Scell.
  • 19 shows an example of SRS resource configuration for each SRS-ResourceSet for resourceType that is 'aperiodic'.
  • 20 shows an example of SRS resource configuration for each SRS-ResourceSet for resourceType that is 'periodicity' in 1T2R UE.
  • 21 shows an example of antenna switching before and after SRS transmission.
  • 25 shows a procedure of a terminal according to the disclosure of the present specification.
  • 26 shows a procedure of a base station according to the disclosure of the present specification.
  • multiple access systems include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, an orthogonal frequency division multiple access (OFDMA) system, a system, and a single SC-FDMA (single) system. It includes a carrier frequency division multiple access) system, and a multicarrier frequency division multiple access (MC-FDMA) system.
  • CDMA may be implemented over a radio technology such as universal terrestrial radio access (UTRA) or CDMA2000.
  • TDMA may be implemented through a radio technology such as global system for mobile communications (GSM), general packet radio service (GPRS), or enhanced data rates for GSM evolution (EDGE).
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • EDGE enhanced data rates for GSM evolution
  • OFDMA may be implemented through a wireless technology such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or E-UTRA (evolved UTRA).
  • IEEE Institute of Electrical and Electronics Engineers
  • Wi-Fi Wi-Fi
  • WiMAX WiMAX
  • IEEE 802.20 IEEE 802.20
  • E-UTRA evolved UTRA
  • UTRA is part of the universal mobile telecommunications system (UMTS).
  • 3rd generation partnership project (3GPP) long-term evolution (LTE) is a part of evolved UMTS (E-UMTS) using E-UTRA.
  • 3GPP LTE uses OFDMA in downlink (DL) and SC-FDMA in uplink (UL).
  • Evolution of 3GPP LTE includes LTE-A (advanced), LTE-A Pro, and/or 5G NR (new radio).
  • the implementation of the present specification is mainly described in relation to a 3GPP-based wireless communication system.
  • the technical characteristics of the present specification are not limited thereto.
  • the following detailed description is provided based on a mobile communication system corresponding to the 3GPP-based wireless communication system, but aspects of the present specification that are not limited to the 3GPP-based wireless communication system may be applied to other mobile communication systems.
  • a or B (A or B) may mean “only A”, “only B”, or “both A and B”.
  • a or B (A or B) may be interpreted as “A and/or B (A and/or B)”.
  • A, B or C(A, B or C) herein means “only A”, “only B”, “only C”, or “any and any combination of A, B and C ( any combination of A, B and C)”.
  • a slash (/) or a comma (comma) may mean “and/or”.
  • A/B may mean “A and/or B”. Accordingly, “A/B” may mean “only A”, “only B”, or “both A and B”.
  • A, B, C may mean “A, B, or C”.
  • At least one of A and B may mean “only A”, “only B”, or “both A and B”.
  • the expression “at least one of A or B” or “at least one of A and/or B” means “A and It may be construed the same as “at least one of A and B”.
  • At least one of A, B and C means “only A”, “only B”, “only C”, or “A, B and C” any combination of A, B and C”.
  • at least one of A, B or C or “at least one of A, B and/or C” means can mean “at least one of A, B and C”.
  • parentheses used herein may mean “for example”.
  • PDCCH control information
  • PDCCH control information
  • parentheses used herein may mean “for example”.
  • PDCCH control information
  • PDCCH control information
  • FIG. 1 shows an example of a communication system to which an implementation of the present specification is applied.
  • the 5G usage scenario shown in FIG. 1 is only an example, and the technical features of the present specification may be applied to other 5G usage scenarios not shown in FIG. 1 .
  • the three main requirements categories for 5G are (1) enhanced mobile broadband (eMBB) category, (2) massive machine type communication (mMTC) category, and (3) ultra-reliable, low-latency communication. (URLLC; ultra-reliable and low latency communications) category.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC ultra-reliable, low-latency communications
  • a communication system 1 includes wireless devices 100a to 100f , a base station (BS) 200 , and a network 300 .
  • BS base station
  • 1 illustrates a 5G network as an example of a network of the communication system 1, the implementation of the present specification is not limited to the 5G system, and may be applied to future communication systems beyond the 5G system.
  • Base station 200 and network 300 may be implemented as wireless devices, and certain wireless devices may act as base station/network nodes in relation to other wireless devices.
  • the wireless devices 100a to 100f represent devices that perform communication using a radio access technology (RAT) (eg, 5G NR or LTE), and may also be referred to as a communication/wireless/5G device.
  • RAT radio access technology
  • the wireless devices 100a to 100f are not limited thereto, and the robot 100a, the vehicles 100b-1 and 100b-2, the extended reality (XR) device 100c, the portable device 100d, and home appliances are not limited thereto.
  • It may include a product 100e, an IoT device 100f, and an artificial intelligence (AI) device/server 400 .
  • a vehicle may include a vehicle with a wireless communication function, an autonomous vehicle, and a vehicle capable of performing vehicle-to-vehicle communication.
  • Vehicles may include unmanned aerial vehicles (UAVs) (eg drones).
  • XR devices may include AR/VR/mixed reality (MR) devices, and may include head-mounted devices (HMDs) mounted on vehicles, televisions, smartphones, computers, wearable devices, home appliances, digital signs, vehicles, robots, and the like. mounted device) or HUD (head-up display).
  • Portable devices may include smartphones, smart pads, wearable devices (eg, smart watches or smart glasses), and computers (eg, laptops).
  • Home appliances may include TVs, refrigerators, and washing machines.
  • IoT devices may include sensors and smart meters.
  • the wireless devices 100a to 100f may be referred to as user equipment (UE).
  • the UE is, for example, a mobile phone, a smartphone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, a slate PC, a tablet PC, an ultrabook, a vehicle, an autonomous driving function.
  • the UAV may be an aircraft that does not have a person on board and is navigated by a radio control signal.
  • the VR device may include a device for realizing an object or a background of a virtual environment.
  • the AR device may include a device implemented by connecting an object or background in a virtual world to an object or background in the real world.
  • the MR apparatus may include a device implemented by merging the background of an object or virtual world with the background of the object or the real world.
  • the hologram device may include a device for realizing a 360-degree stereoscopic image by recording and reproducing stereoscopic information using an interference phenomenon of light generated when two laser lights called a hologram meet.
  • the public safety device may include an image relay device or an image device that can be worn on a user's body.
  • MTC devices and IoT devices may be devices that do not require direct human intervention or manipulation.
  • MTC devices and IoT devices may include smart meters, vending machines, thermometers, smart light bulbs, door locks, or various sensors.
  • a medical device may be a device used for the purpose of diagnosing, treating, alleviating, treating, or preventing a disease.
  • a medical device may be a device used to diagnose, treat, alleviate, or correct an injury or injury.
  • a medical device may be a device used for the purpose of examining, replacing, or modifying structure or function.
  • the medical device may be a device used for pregnancy control purposes.
  • a medical device may include a device for treatment, a device for driving, an (ex vivo) diagnostic device, a hearing aid, or a device for a procedure.
  • a security device may be a device installed to prevent a risk that may occur and to maintain safety.
  • the security device may be a camera, closed circuit television (CCTV), recorder or black box.
  • the fintech device may be a device capable of providing financial services such as mobile payment.
  • a fintech device may include a payment device or a POS system.
  • the weather/environment device may include a device for monitoring or predicting the weather/environment.
  • the wireless devices 100a to 100f may be connected to the network 300 through the base station 200 .
  • AI technology may be applied to the wireless devices 100a to 100f , and the wireless devices 100a to 100f may be connected to the AI server 400 through the network 300 .
  • the network 300 may be configured using a 3G network, a 4G (eg, LTE) network, a 5G (eg, NR) network, and a 5G or later network.
  • the wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but communicate directly without going through the base station 200/network 300 (eg, sidelink communication) You may.
  • the vehicles 100b-1 and 100b-2 may perform direct communication (eg, vehicle-to-vehicle (V2V)/vehicle-to-everything (V2X) communication).
  • the IoT device eg, a sensor
  • the IoT device may communicate directly with another IoT device (eg, a sensor) or other wireless devices 100a to 100f.
  • Wireless communications/connections 150a , 150b , 150c may be established between the wireless devices 100a - 100f and/or between the wireless devices 100a - 100f and the base station 200 and/or between the base station 200 .
  • the wireless communication/connection includes uplink/downlink communication 150a, sidelink communication 150b (or device-to-device (D2D) communication), inter-base station communication 150c (eg, relay, integrated access and backhaul), etc.), and may be established through various RATs (eg, 5G NR).
  • the wireless devices 100a to 100f and the base station 200 may transmit/receive wireless signals to/from each other through the wireless communication/connections 150a, 150b, and 150c.
  • the wireless communication/connection 150a , 150b , 150c may transmit/receive signals through various physical channels.
  • various configuration information setting processes for transmission/reception of radio signals various signal processing processes (eg, channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.), and at least a part of a resource allocation process and the like may be performed.
  • AI refers to a field that studies artificial intelligence or methodologies that can make it
  • machine learning refers to a field that defines various problems dealt with in the field of artificial intelligence and studies methodologies to solve them.
  • Machine learning is also defined as an algorithm that improves the performance of a certain task through constant experience.
  • a robot can mean a machine that automatically handles or operates a task given by its own capabilities.
  • a robot having a function of recognizing an environment and performing an operation by self-judgment may be referred to as an intelligent robot.
  • Robots can be classified into industrial, medical, home, military, etc. depending on the purpose or field of use.
  • the robot may be provided with a driving unit including an actuator or a motor to perform various physical operations such as moving the robot joints.
  • the movable robot includes a wheel, a brake, a propeller, and the like in the driving unit, and may travel on the ground or fly in the air through the driving unit.
  • Autonomous driving refers to a technology that drives itself, and an autonomous driving vehicle refers to a vehicle that runs without or with minimal user manipulation.
  • autonomous driving includes technology that maintains a driving lane, technology that automatically adjusts speed such as adaptive cruise control, technology that automatically drives along a set route, and technology that automatically sets a route when a destination is set. Technology, etc. may all be included.
  • the vehicle includes a vehicle having only an internal combustion engine, a hybrid vehicle having both an internal combustion engine and an electric motor, and an electric vehicle having only an electric motor, and may include not only automobiles, but also trains, motorcycles, and the like.
  • Autonomous vehicles can be viewed as robots with autonomous driving capabilities.
  • Augmented reality refers to VR, AR, and MR.
  • VR technology provides only CG images of objects or backgrounds in the real world
  • AR technology provides virtual CG images on top of images of real objects
  • MR technology provides CG by mixing and combining virtual objects with the real world.
  • MR technology is similar to AR technology in that it shows both real and virtual objects.
  • AR technology a virtual object is used in a form that complements a real object
  • MR technology a virtual object and a real object are used with equal characteristics.
  • NR supports multiple numerology or subcarrier spacing (SCS) to support various 5G services. For example, when SCS is 15 kHz, it supports wide area in traditional cellular band, and when SCS is 30 kHz/60 kHz, dense-urban, lower latency and wider area are supported. It supports a wider carrier bandwidth, and when the SCS is 60 kHz or higher, it supports a bandwidth greater than 24.25 GHz to overcome the phase noise.
  • SCS subcarrier spacing
  • the NR frequency band may be defined as two types of frequency ranges (FR1, FR2).
  • the numerical value of the frequency range may change.
  • the frequency ranges of the two types (FR1, FR2) may be as shown in Table 1 below.
  • FR1 may mean "sub 6GHz range”
  • FR2 may mean “above 6GHz range”
  • mmW millimeter wave
  • FR1 may include a band of 410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may include a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or higher. For example, a frequency band of 6GHz (or 5850, 5900, 5925 MHz, etc.) or higher included in FR1 may include an unlicensed band.
  • the unlicensed band can be used for a variety of purposes, for example, for communication for vehicles (eg, autonomous driving).
  • the wireless communication technology implemented in the wireless device of the present specification may include narrowband IoT (NB-IoT, narrowband IoT) for low-power communication as well as LTE, NR, and 6G.
  • NB-IoT narrowband IoT
  • the NB-IoT technology may be an example of a low power wide area network (LPWAN) technology, and may be implemented in standards such as LTE Cat NB1 and/or LTE Cat NB2, and is not limited to the above-mentioned name.
  • LPWAN low power wide area network
  • the wireless communication technology implemented in the wireless device of the present specification may perform communication based on LTE-M technology.
  • the LTE-M technology may be an example of an LPWAN technology, and may be called by various names such as enhanced MTC (eMTC).
  • eMTC enhanced MTC
  • LTE-M technology is 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-bandwidth limited), 5) LTE-MTC, 6) LTE MTC , and/or 7) may be implemented in at least one of various standards such as LTE M, and is not limited to the above-described name.
  • the wireless communication technology implemented in the wireless device of the present specification may include at least one of ZigBee, Bluetooth, and/or LPWAN in consideration of low-power communication, and limited to the above-mentioned names it is not
  • the ZigBee technology can create PAN (personal area networks) related to small/low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.
  • FIG. 2 shows an example of a wireless device to which the implementation of the present specification is applied.
  • the first wireless device 100 and the second wireless device 200 may transmit/receive radio signals to/from an external device through various RATs (eg, LTE and NR).
  • various RATs eg, LTE and NR.
  • ⁇ first wireless device 100 and second wireless device 200 ⁇ are ⁇ radio devices 100a to 100f and base station 200 ⁇ in FIG. 1, ⁇ wireless device 100a to 100f ) and wireless devices 100a to 100f ⁇ and/or ⁇ base station 200 and base station 200 ⁇ .
  • the first wireless device 100 may include at least one transceiver, such as a transceiver 106 , at least one processing chip, such as a processing chip 101 , and/or one or more antennas 108 .
  • Processing chip 101 may include at least one processor, such as processor 102 , and at least one memory, such as memory 104 .
  • the memory 104 is exemplarily shown to be included in the processing chip 101 . Additionally and/or alternatively, the memory 104 may be located external to the processing chip 101 .
  • the processor 102 may control the memory 104 and/or the transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, the processor 102 may process information in the memory 104 to generate first information/signal, and transmit a wireless signal including the first information/signal through the transceiver 106 . The processor 102 may receive a radio signal including the second information/signal through the transceiver 106 , and store information obtained by processing the second information/signal in the memory 104 .
  • Memory 104 may be operatively coupled to processor 102 .
  • Memory 104 may store various types of information and/or instructions.
  • the memory 104 may store software code 105 that, when executed by the processor 102 , implements instructions that perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • the software code 105 may implement instructions that, when executed by the processor 102 , perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • software code 105 may control processor 102 to perform one or more protocols.
  • software code 105 may control processor 102 to perform one or more air interface protocol layers.
  • the processor 102 and memory 104 may be part of a communication modem/circuit/chip designed to implement a RAT (eg, LTE or NR).
  • the transceiver 106 may be coupled to the processor 102 to transmit and/or receive wireless signals via one or more antennas 108 .
  • Each transceiver 106 may include a transmitter and/or a receiver.
  • the transceiver 106 may be used interchangeably with a radio frequency (RF) unit.
  • the first wireless device 100 may represent a communication modem/circuit/chip.
  • the second wireless device 200 may include at least one transceiver, such as a transceiver 206 , at least one processing chip, such as a processing chip 201 , and/or one or more antennas 208 .
  • the processing chip 201 may include at least one processor, such as a processor 202 , and at least one memory, such as a memory 204 .
  • the memory 204 is exemplarily shown included in the processing chip 201 . Additionally and/or alternatively, the memory 204 may be located external to the processing chip 201 .
  • the processor 202 may control the memory 204 and/or the transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein. For example, the processor 202 may process the information in the memory 204 to generate third information/signal, and transmit a wireless signal including the third information/signal through the transceiver 206 . The processor 202 may receive a radio signal including the fourth information/signal through the transceiver 206 , and store information obtained by processing the fourth information/signal in the memory 204 .
  • Memory 204 may be operatively coupled to processor 202 .
  • Memory 204 may store various types of information and/or instructions.
  • the memory 204 may store software code 205 that, when executed by the processor 202 , implements instructions that perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • software code 205 may implement instructions that, when executed by processor 202 , perform the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • software code 205 may control processor 202 to perform one or more protocols.
  • software code 205 may control processor 202 to perform one or more air interface protocol layers.
  • the processor 202 and the memory 204 may be part of a communication modem/circuit/chip designed to implement a RAT (eg, LTE or NR).
  • the transceiver 206 may be coupled to the processor 202 to transmit and/or receive wireless signals via one or more antennas 208 .
  • Each transceiver 206 may include a transmitter and/or a receiver.
  • the transceiver 206 may be used interchangeably with the RF unit.
  • the second wireless device 200 may represent a communication modem/circuit/chip.
  • one or more protocol layers may be implemented by one or more processors 102 , 202 .
  • the one or more processors 102, 202 may include one or more layers (eg, a physical (PHY) layer, a media access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, A functional layer such as a radio resource control (RRC) layer and a service data adaptation protocol (SDAP) layer) may be implemented.
  • layers eg, a physical (PHY) layer, a media access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, A functional layer such as a radio resource control (RRC) layer and a service data adaptation protocol (SDAP) layer
  • PHY physical
  • MAC media access control
  • RLC radio link control
  • PDCP packet data convergence protocol
  • RRC radio resource control
  • SDAP service data adaptation protocol
  • the one or more processors 102, 202 generate one or more protocol data units (PDUs) and/or one or more service data units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein. can do.
  • One or more processors 102 , 202 may generate messages, control information, data, or information in accordance with the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein.
  • the one or more processors 102, 202 may configure a signal including a PDU, SDU, message, control information, data or information (eg, a baseband signal) and provide it to one or more transceivers (106, 206).
  • One or more processors 102 , 202 may receive signals (eg, baseband signals) from one or more transceivers 106 , 206 , and may be described, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein.
  • PDU, SDU, message, control information, data or information may be acquired according to
  • One or more processors 102 , 202 may be referred to as controllers, microcontrollers, microprocessors, and/or microcomputers.
  • One or more processors 102 , 202 may be implemented by hardware, firmware, software, and/or a combination thereof.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gates
  • the descriptions, functions, procedures, proposals, methods, and/or flow diagrams disclosed herein may be implemented using firmware and/or software, and the firmware and/or software may be implemented to include modules, procedures, and functions. .
  • Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein may be included in one or more processors 102 , 202 , or stored in one or more memories 104 , 204 to provide one It may be driven by the above processors 102 and 202 .
  • the descriptions, functions, procedures, proposals, methods, and/or flow diagrams disclosed herein may be implemented using firmware or software in the form of code, instructions, and/or sets of instructions.
  • One or more memories 104 , 204 may be coupled with one or more processors 102 , 202 , and may store various forms of data, signals, messages, information, programs, code, instructions, and/or instructions.
  • the one or more memories 104 and 204 may include read-only memory (ROM), random access memory (RAM), erasable programmable ROM (EPROM), flash memory, hard drives, registers, cache memory, computer readable storage media and/or these may be composed of a combination of One or more memories 104 , 204 may be located inside and/or external to one or more processors 102 , 202 . Additionally, one or more memories 104 , 204 may be coupled to one or more processors 102 , 202 through various technologies, such as wired or wireless connections.
  • the one or more transceivers 106, 206 may transmit user data, control information, wireless signals/channels, etc. referred to in the descriptions, functions, procedures, suggestions, methods, and/or flow charts disclosed herein to one or more other devices. .
  • the one or more transceivers 106, 206 may receive user data, control information, radio signals/channels, etc. referred to in the descriptions, functions, procedures, suggestions, methods, and/or flow charts disclosed herein, from one or more other devices. there is.
  • one or more transceivers 106 , 206 may be coupled to one or more processors 102 , 202 and may transmit and receive wireless signals.
  • one or more processors 102 , 202 may control one or more transceivers 106 , 206 to transmit user data, control information, wireless signals, etc. to one or more other devices.
  • one or more processors 102 , 202 may control one or more transceivers 106 , 206 to receive user data, control information, wireless signals, etc. from one or more other devices.
  • One or more transceivers 106 , 206 may be coupled to one or more antennas 108 , 208 .
  • One or more transceivers 106, 206 may be connected via one or more antennas 108, 208 to user data, control information, radio signals/channels referred to in the descriptions, functions, procedures, proposals, methods, and/or operational flow diagrams disclosed herein. It may be set to transmit and receive, etc.
  • the one or more antennas 108 and 208 may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
  • One or more transceivers are configured to process received user data, control information, radio signals/channels, etc., using one or more processors (102, 202), such as received user data, control information, radio signals/channels, and the like. etc. can be converted from an RF band signal to a baseband signal.
  • One or more transceivers 106 , 206 may convert user data, control information, radio signals/channels, etc. processed using one or more processors 102 , 202 from baseband signals to RF band signals.
  • one or more transceivers 106 , 206 may include (analog) oscillators and/or filters.
  • one or more transceivers 106, 206 up-convert OFDM baseband signals to OFDM signals via (analog) oscillators and/or filters under the control of one or more processors 102, 202; , an up-converted OFDM signal may be transmitted at a carrier frequency.
  • One or more transceivers 106, 206 receive the OFDM signal at the carrier frequency and down-convert the OFDM signal to an OFDM baseband signal through an (analog) oscillator and/or filter under the control of one or more processors 102, 202. can be down-converted.
  • the UE may operate as a transmitting device in an uplink (UL) and a receiving device in a downlink (DL).
  • the base station may operate as a receiving device in the UL and a transmitting device in the DL.
  • a processor 102 coupled to, mounted on, or shipped with the first wireless device 100 may perform UE operations in accordance with implementations of the present disclosure or may configure the transceiver 106 to perform UE operations in accordance with implementations of the present disclosure.
  • a processor 202 coupled to, mounted on, or shipped to the second wireless device 200 is configured to perform a base station operation according to an implementation of the present specification or to control the transceiver 206 to perform a base station operation according to an implementation of the present specification. can be
  • a base station may be referred to as a Node B (Node B), an eNode B (eNB), or a gNB.
  • Node B Node B
  • eNB eNode B
  • gNB gNode B
  • FIG 3 shows an example of a wireless device to which the implementation of the present specification is applied.
  • the wireless device may be implemented in various forms according to usage examples/services (refer to FIG. 1 ).
  • the wireless devices 100 and 200 may correspond to the wireless devices 100 and 200 of FIG. 2 , and may be configured by various components, devices/parts and/or modules.
  • each wireless device 100 , 200 may include a communication device 110 , a control device 120 , a memory device 130 , and an additional component 140 .
  • the communication device 110 may include communication circuitry 112 and a transceiver 114 .
  • communication circuitry 112 may include one or more processors 102 , 202 of FIG. 2 and/or one or more memories 104 , 204 of FIG. 2 .
  • transceiver 114 may include one or more transceivers 106 , 206 of FIG.
  • the control device 120 is electrically connected to the communication device 110 , the memory device 130 , and the additional component 140 , and controls the overall operation of each wireless device 100 , 200 .
  • the control device 120 may control the electrical/mechanical operation of each of the wireless devices 100 and 200 based on the program/code/command/information stored in the memory device 130 .
  • the control device 120 transmits information stored in the memory device 130 to the outside (eg, other communication devices) via the communication device 110 through a wireless/wired interface, or a communication device ( 110), information received from an external (eg, other communication device) may be stored in the memory device 130 .
  • the additional component 140 may be variously configured according to the type of the wireless device 100 or 200 .
  • the additional components 140 may include at least one of a power unit/battery, input/output (I/O) devices (eg, audio I/O ports, video I/O ports), drive units, and computing devices.
  • I/O input/output
  • Wireless devices 100 and 200 include, but are not limited to, robots (100a in FIG. 1 ), vehicles ( 100b-1 and 100b-2 in FIG. 1 ), XR devices ( 100c in FIG. 1 ), and portable devices ( FIG. 1 ). 100d), home appliances (100e in FIG. 1), IoT devices (100f in FIG.
  • the wireless devices 100 and 200 may be used in a moving or fixed location according to usage examples/services.
  • all of the various components, devices/parts and/or modules of the wireless devices 100 and 200 may be connected to each other via a wired interface, or at least some of them may be wirelessly connected via the communication device 110 .
  • the control device 120 and the communication device 110 are connected by wire, and the control device 120 and the first device (eg, 130 and 140 ) are communication devices. It may be connected wirelessly through 110 .
  • Each component, device/portion, and/or module within the wireless device 100, 200 may further include one or more elements.
  • the control device 120 may be configured by one or more processor sets.
  • control device 120 may be configured by a set of a communication control processor, an application processor (AP), an electronic control unit (ECU), a graphic processing device, and a memory control processor.
  • AP application processor
  • ECU electronice control unit
  • the memory device 130 may be configured by RAM, DRAM, ROM, flash memory, volatile memory, non-volatile memory, and/or a combination thereof.
  • UE's shows an example.
  • the UE 100 may correspond to the first wireless device 100 of FIG. 2 and/or the wireless device 100 or 200 of FIG. 3 .
  • UE 100 includes processor 102 , memory 104 , transceiver 106 , one or more antennas 108 , power management module 110 , battery 112 , display 114 , keypad 116 , SIM a (subscriber identification module) card 118 , a speaker 120 , and a microphone 122 .
  • the processor 102 may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • the processor 102 may be configured to control one or more other components of the UE 100 to implement the descriptions, functions, procedures, suggestions, methods, and/or operational flow diagrams disclosed herein.
  • a layer of air interface protocol may be implemented in the processor 102 .
  • the processor 102 may include an ASIC, other chipset, logic circuitry, and/or data processing device.
  • the processor 102 may be an application processor.
  • the processor 102 may include at least one of a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), and a modem (modulator and demodulator).
  • DSP digital signal processor
  • CPU central processing unit
  • GPU graphics processing unit
  • modem modulator and demodulator
  • Examples of the processor 102 include SNAPDRAGONTM series processors made by Qualcomm®, EXYNOSTM series processors made by Samsung®, A series processors made by Apple®, HELIOTM series processors made by MediaTek®, ATOMTM series processors made by Intel®, or a corresponding next-generation processor. It can be found in the processor.
  • the memory 104 is operatively coupled to the processor 102 , and stores various information for operating the processor 102 .
  • Memory 104 may include ROM, RAM, flash memory, memory cards, storage media, and/or other storage devices.
  • modules eg, procedures, functions, etc.
  • Modules may be stored in memory 104 and executed by processor 102 .
  • the memory 104 may be implemented within the processor 102 or external to the processor 102 , in which case it may be communicatively coupled with the processor 102 through various methods known in the art.
  • the transceiver 106 is operatively coupled with the processor 102 and transmits and/or receives wireless signals.
  • the transceiver 106 includes a transmitter and a receiver.
  • the transceiver 106 may include baseband circuitry for processing radio frequency signals.
  • the transceiver 106 controls one or more antennas 108 to transmit and/or receive wireless signals.
  • the power management module 110 manages power of the processor 102 and/or the transceiver 106 .
  • the battery 112 supplies power to the power management module 110 .
  • the display 114 outputs the result processed by the processor 102 .
  • Keypad 116 receives input for use by processor 102 .
  • the keypad 116 may be displayed on the display 114 .
  • SIM card 118 is an integrated circuit for securely storing an international mobile subscriber identity (IMSI) and associated keys, and is used to identify and authenticate a subscriber in a mobile phone device such as a mobile phone or computer. You can also store contact information on many SIM cards.
  • IMSI international mobile subscriber identity
  • the speaker 120 outputs sound related results processed by the processor 102 .
  • Microphone 122 receives sound related input for use by processor 102 .
  • Figure 5a to degree 5c shows an exemplary architecture for the service of next-generation mobile communication. are examples .
  • the UE is connected to the LTE/LTE-A-based cell and the NR-based cell in a DC (dual connectivity) manner.
  • DC dual connectivity
  • the NR-based cell is connected to a core network for the existing 4G mobile communication, that is, an Evolved Packet Core (EPC).
  • EPC Evolved Packet Core
  • an LTE/LTE-A-based cell is connected to a core network for 5G mobile communication, that is, a Next Generation (NG) core network.
  • NG Next Generation
  • a service method based on the architecture shown in FIGS. 5A and 5B is referred to as a non-standalone (NSA).
  • NSA non-standalone
  • SA standalone
  • a pair of spectrum means that two carrier spectrums are included for downlink and uplink operation.
  • one carrier may include a downlink band and an uplink band that are paired with each other.
  • the transmission time interval (TTI) shown in FIG. 6 may be referred to as a subframe or a slot for NR (or new RAT).
  • the subframe (or slot) of FIG. 6 may be used in a TDD system of NR (or new RAT) to minimize data transmission delay.
  • a subframe (or slot) includes 14 symbols, like the current subframe. A symbol at the beginning of a subframe (or slot) may be used for a DL control channel, and a symbol at the end of a subframe (or slot) may be used for a UL control channel. The remaining symbols may be used for DL data transmission or UL data transmission.
  • downlink transmission and uplink transmission may be sequentially performed in one subframe (or slot). Accordingly, downlink data may be received within a subframe (or slot), and an uplink acknowledgment (ACK/NACK) may be transmitted within the subframe (or slot).
  • ACK/NACK uplink acknowledgment
  • the structure of such a subframe (or slot) may be referred to as a self-contained subframe (or slot). If the structure of such a subframe (or slot) is used, the time it takes to retransmit data in which a reception error occurs is reduced, and thus, there is an advantage in that the final data transmission latency can be minimized.
  • a time gap may be required in a transition process from the transmission mode to the reception mode or from the reception mode to the transmission mode.
  • some OFDM symbols when switching from DL to UL in the subframe structure may be set as a guard period (GP).
  • a plurality of numerology may be provided to the terminal.
  • the numerology may be defined by a cycle prefix (CP) length and a subcarrier spacing.
  • One cell may provide a plurality of neurology to the terminal.
  • the index of numerology is expressed as ⁇
  • the interval of each subcarrier and the corresponding CP length may be as shown in the table below.
  • N slot symb the number of OFDM symbols per slot
  • N frame, ⁇ slot the number of slots per frame
  • N subframe, ⁇ slot the number of slots per subframe
  • N slot symb the number of OFDM symbols per slot
  • N frame, ⁇ slot the number of slots per frame
  • N subframe, ⁇ slot the number of slots per subframe
  • each symbol within a symbol may be used as a downlink or an uplink as shown in the table below.
  • uplink is denoted by U
  • downlink is denoted by D.
  • X represents a symbol that can be flexibly used in uplink or downlink.
  • SS block (SS / PBCH block: SSB) is information necessary for the terminal to perform initial access in 5G NR, that is, a physical broadcast channel (PBCH) including a master information block (MIB) and a synchronization signal (Synchronization Signal: SS) ( PSS and SSS).
  • PBCH physical broadcast channel
  • MIB master information block
  • SS Synchronization Signal
  • a plurality of SSBs may be bundled to define an SS burst, and a plurality of SS bursts may be bundled to define an SS burst set. It is assumed that each SSB is beamformed in a specific direction, and several SSBs in the SS burst set are designed to support terminals existing in different directions, respectively.
  • the SS burst is transmitted every predetermined period. Accordingly, the terminal receives the SSB, and performs cell detection and measurement.
  • the base station transmits each SSB in the SS burst while performing beam sweeping according to time. At this time, several SSBs in the SS burst set are transmitted to support terminals existing in different directions, respectively.
  • Degree 9 is SRS for antenna switching SRS showing examples of settings is an example .
  • the base station may obtain downlink channel state information (CSI) based on the SRS transmitted by the terminal using a channel reciprocity. To this end, the base station may set the terminal by setting the higher layer parameter usage to 'antennaSwitching' in the SRS resource set.
  • the UE may transmit the SRS using Tx (transmitter) antenna switching. It may take 15 ⁇ sec for the UE to switch the Tx antenna. Accordingly, when SRS is transmitted through Tx antenna switching, a guard symbol (GAP) of one symbol may be required between configured SRS symbols.
  • Tx transmitter
  • GAP guard symbol
  • two SRS resources may be configured to transmit SRS through different Tx antennas.
  • Tx#1 11th thread ball
  • Tx#2 13th symbol
  • GAP 15kHz, 30kHz, 60kHz
  • SCS 20kHz
  • interruption due to switching may occur in other bands and carriers (band/carrier).
  • SCS subcarrier spacing
  • band/carrier band/carrier
  • the degree of interruption may vary.
  • a setting for interruption can be suggested.
  • the UE supports per-FR GAP there may be no interruption between frequency ranges.
  • description is based on TDD and may be applied to TDD and FDD.
  • NR and LTE are synchronous, for example, when the SCS of NR is 30 kHz, the terminal is 1T2R or 2T4R, and resources for two SRS are configured, as shown in FIG. 10, interruption is in 1 subframe occurs Even when the SCS of NR is 15 kHz, 30 kHz, 60 kHz, and 120 kHz, all the same may be applied.
  • 11 is 1T4R and PUSCH It shows an example of interference in a terminal that does not need switching for this purpose.
  • the UE may transmit three SRSs in slot 1 and one SRS may transmit in slot 2.
  • the UE may switch the Tx antenna for transmitting the SRS of slot 2 in slot 1 in advance. Then, even if GAP for antenna switching is not configured in slot 2, the UE can transmit SRS. Since there is no antenna switching in slot 2, additional interruption may not occur. In this case, there is interruption in only one subframe in the UL/DL of LTE.
  • 12 and 13 are 1T4R and PUSCH It shows an example of interference in a terminal that requires switching for this purpose.
  • a Tx antenna switching GAP for transmitting SRS in slot 2 is additionally required. That is, when the Tx antenna for PUSCH is fixed to a specific antenna, interruption occurs in up to two subframes.
  • the UE may transmit an additional capability (e.g., NotxSwitchforPUSCH) for whether the UE can transmit the PUSCH equally in all Tx antennas for transmitting the SRS to the eNB. Based on this, the base station may determine whether to configure GAP for SRS Tx antenna switching in slot 2.
  • an additional capability e.g., NotxSwitchforPUSCH
  • the UE may transmit capability information indicating that NotxSwitchforPUSCH is possible to the base station.
  • the UE transmits the PUSCH in the second slot and transmits the SRS, there is no need for switching.
  • the base station may not consider interruption before SRS transmission in the second slot based on capability information.
  • the UE may transmit capability information indicating that NotxSwitchforPUSCH is not possible to the base station.
  • the UE transmits the PUSCH and transmits the SRS in the second slot switching may be required.
  • the base station may set the GAP in consideration of interruption due to switching before the terminal transmits the SRS in the second slot based on the capability information.
  • the base station may transmit a UE Capability Inquiry to the UE.
  • the terminal may transmit its own capability information (ex. NotxSwitchforPUSCH) to the base station.
  • NotxSwitchforPUSCH its own capability information
  • the base station may transmit the GAP configuration for SRS Tx antenna switching to the terminal based on the capability information received from the terminal.
  • the capability information may be NotxSwitchforPUSCH.
  • NotxSwitchforPUSCH may be configured as shown in Table 7 or Table 8.
  • LTE UL/DL interruption due to NR SRS antenna switching may occur for up to 2 subframes. Therefore, the interference (interruption) occurring in LTE due to NR SRS antenna switching may be defined as shown in Tables 9 and 10.
  • E-UTRA NR SCS [kHz] Sync Async 1T2R/2T4R 1T4R 1T2R/2T4R 1T4R 15 30 60 15 30 60 15 30 60 15 30 60 interruption length [subframe] One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One One
  • E-UTRA NR SCS [kHz] Sync Async 1T2R/2T4R 1T4R 1T2R/2T4R 1T4R 15 30 60 15 30 60 15 30 60 15 30 60 interruption length [subframe] One One One 2 2 2 2 2 2 2 2 2 2 2
  • Table 9 and Table 10 show how many subframes the interruption according to the NR SCS appears.
  • 15 is NR PSCell or from Scell 1T2R and 2T4R An example of interference in a terminal is shown.
  • interruption may occur in UL/DL of NR PSCell or NR SCell due to SRS antenna switching in NR.
  • the UE When the NR PCell and the NR SCell are synchronous and full UL slots, when the SCS is 30 kHz, the UE is 1T2R or 2T4R, and resources are configured for two SRS transmissions, as shown in FIG. 15, 1 slot interference for all SCSs of the PSCell ( 1 slot interruption) may occur. If a Tx antenna switching GAP is required to transmit the first SRS in a band and a carrier (band/carrier) having a 30 kHz SCS, interruption may occur in 2 slots of the 120 kHz SCS PSCell or SCell.
  • 16 is 1T4R and PUSCH It shows an example of interference in a terminal that does not need switching for this purpose.
  • the slot in which the interruption occurs may vary depending on whether an additional Tx antenna switching GAP is required for the SRS transmitted by the UE in the second slot.
  • 16 shows interruption in a terminal having NotxSwitchforPUSCH capability.
  • 1-slot interruption may occur for 15 kHz, 30 kHz, and 60 kHz SCS, and 2-slot interruption may occur for 120 kHz.
  • 17 is NR PSCell or from Scell 1T2R and 2T4R An example of interference in a terminal is shown.
  • the SCS is 30 kHz
  • the UE is 1T2R or 2T4R
  • resources are configured for two SRS transmissions, as shown in FIG. 17
  • PSCell 1 slot interruption may occur for all SCSs of If a Tx antenna switching GAP is required to transmit the first SRS in a band or carrier (band/carrier) with 30 kHz SCS, interruption may occur in 2 slots of 120 kHz SCS PSCell or SCell. However, in this case, interruption does not occur in all symbols of the slot, but only in symbols corresponding to the UL of the slot. Therefore, if interruption is set for all symbols of the slot, overall throughput is lowered. Therefore, interruption should be set only for UL symbols.
  • Whether or not to additionally 1 slot interruption may be defined according to whether NotxSwitchforPUSCH is present.
  • interruption slot is a partial DL/UL slot, interruption may be configured in the UL symbol.
  • slot boundary may be different up to 500 usec. Accordingly, slot-level interruption may be configured regardless of a full UL slot or a partial DL/UL slot. For example, if the SCS is 30 kHz, the terminal is 1T4R, and resources are configured for 4 SRS transmission, as shown in FIG. 18 , interruption occurs in two slots for 15 kHz, 30 kHz, and 60 kHz SCS of the PSCell or SCell and 120 kHz For SCS, interruption may occur in three slots.
  • SRS resource set it can be defined as Table 11, Table 12, Table 13 and Table 14 for the interruption occurring in the NR PSCell or the NR SCell due to the NR SRS antenna switching.
  • Table 11 shows an interruption length when antenna switching (NotxSwitchforPUSCH) for PUSCH transmission is not required in a full UL slot.
  • interruption may occur in two slots in the cell having the SCS at 120 kHz. Indicates an interruption length when antenna switching (NotxSwitchforPUSCH) is required for PUSCH transmission in a UL slot (full UL slot).
  • Table 13 shows an interruption length when antenna switching (NotxSwitchforPUSCH) for PUSCH transmission is not required in a partial DL/UL slot.
  • Table 14 shows the interruption length when antenna switching (NotxSwitchforPUSCH) for PUSCH transmission is required in a partial DL/UL slot.
  • FIG. 19 shows a case of a 1T2R terminal and (b) shows a case of a 1T4R terminal.
  • the SRS resource configuration for SRS antenna switching depends on the 'resourceType' of the SRS-ResourceSet. 19 , when 'resourceType' is 'aperiodic', two SRS resources may be configured in the same slot for 1T2R or 2T4R. In case of 1T4R, four SRS resources in two SRS-ResoruceSets may be configured in two different slots.
  • Interruption time may be an antenna port switching time (guard period, GAP) and SRS transmission time when 'resourceType' is 'aperiodic'. That is, an interrupt may occur for each SRS-ResourceSet.
  • each SRS resource may be configured with different SRS-PeriodicityAndOffsets. Therefore, each SRS resource may be transmitted in a different slot according to an Offset value as shown in FIG. 20 . And there is no restriction on non-contiguous slot configuration for SRS resources.
  • the interruption time may be an antenna switching time when 'resourceType' is 'periodic' or 'semi-persistent'. That is, interruption may occur for each SRS resource.
  • SRS An example of antenna switching before and after transmission is shown.
  • RAN4 should clarify whether the switching period before and after the SRS transmission symbol should be considered.
  • a guard period (GAP) symbol for a switching period is defined in the RAN1 standard.
  • GAP guard period
  • a guard period (GAP) symbol is set when SRS resources of a set are transmitted in the same slot, and a guard period may be set between SRS resources of a set. Therefore, there is no GAP (guard period) symbol before the first SRS transmission and the last SRS transmission for antenna switching.
  • GAP GAP
  • a switch back time should be considered when defining an interruption requirement. Otherwise, only the switching time before SRS transmission (GAP) can be considered when defining the interruption requirement.
  • the switching time after SRS transmission does not affect the interruption of the victim cell in slot n+1. does not However, in the UL-UL slot configuration, when the Tx antenna is switched again after SRS transmission in the synchronous case considering the MTTD as shown in FIG. 23, due to the switching time again, interference in slots n and n+1 for the victim cell ( interruption) may occur. When the Tx antenna does not need to switch again after SRS transmission, the interruption may be the same as the UL-DL slot configuration.
  • interruption should be considered in the second UL slot.
  • interruption may occur in a victim cell in a UL symbol of slot n. Therefore, when the SRS resource for antenna switching consists of flexible symbols within a slot, a symbol level interrupt should be defined in order to avoid unnecessary interrupts for DL symbols. Therefore, when switching is performed in the flexible symbol, interruption may be considered for the UL.
  • the UE may receive the DL signal without considering interruption.
  • the interruption requirement may vary depending on the configuration of the UL-DL or UL-DL slot, and in the case of a flexible symbol in the slot, interruption may occur in the UL symbol. Accordingly, in the case of a full UL symbol within a slot, slot level interruption may be considered, and symbol level interruption may be considered for a flexible symbol within a slot.
  • An interruption requirement may be defined based on a slot level for a full UL symbol within a slot and a symbol level for a flexible symbol within a slot.
  • the interruption requirements are shown in Table 15 and Table 16. Consider the time for switching again after SRS transmission. If the switching time after SRS transmission is not considered, the interruption slot for configuring the UL-UL slot is 'interruption length-1' in Tables 15 and 16.
  • the interruption slot for configuring the UL-UL slot is 'Case1 interruption length-1' in Tables 15 and 16.
  • the interrupt slot for UL-UL slot configuration in the synchronous case is Case 1 of Table 15 below.
  • the UE When SRS antenna switching is performed in a serving cell, the UE may be allowed to interrupt other active serving cells as defined in Table 15.
  • the network (gNB) may exclude scheduling for the UE for an interruption slot.
  • the UL/DL channel is scheduled to the UE by the network (gNB), and the UE is not expected to transmit or receive a channel (eg, PDSCH, PUSCH, etc.) for an interruption slot.
  • Table 15 is not based on 'aperiodic', 'semi-persistent' under 'periodic'.
  • 25 shows a procedure of a terminal according to the disclosure of the present specification.
  • a first SRS Sounding Reference Signal
  • a first SRS Sounding Reference Signal
  • Antenna switching can be performed.
  • a second SRS may be transmitted to the base station through a second antenna.
  • the first SRS transmission, the second SRS transmission, and the antenna switching may be performed in the first cell.
  • the antenna switching may be switching between the first antenna and the second antenna.
  • the interruption slot may be a slot in which interruption due to the antenna switching occurs in the second cell.
  • the interference slot may be based on i) the capability information, ii) slot configuration, iii) subcarrier spacing (SCS) of the first cell, and iv) SCS of the second cell.
  • SCS subcarrier spacing
  • the capability information may include NotxSwitchforPUSCH information, and the NotxSwitchforPUSCH information may be based on whether the UE can transmit an uplink signal through the first antenna and the second antenna.
  • the first SRS and the second SRS may be transmitted through a flexible symbol.
  • the antenna switching is performed between the first slot and the second slot
  • the slot configuration may be based on i) whether the first slot is an uplink slot or a downlink slot, and ii) whether the second slot is an uplink slot or a downlink slot.
  • 26 shows a procedure of a base station according to the disclosure of the present specification.
  • a user equipment may transmit a capability request of the UE.
  • a first SRS Sounding Reference Signal
  • a first SRS Sounding Reference Signal
  • a second SRS may be received from the UE through a second antenna of the UE.
  • Signal transmission/reception may be skipped in the interference slot.
  • the first SRS transmission, the second SRS transmission, and the antenna switching may be performed in the first cell.
  • the antenna switching may be switching between the first antenna and the second antenna.
  • the interruption slot may be based on an interruption occurring in the second cell due to the antenna switching.
  • the interference slot may be based on i) the capability information, ii) slot configuration, iii) subcarrier spacing (SCS) of the first cell, and iv) SCS of the second cell.
  • SCS subcarrier spacing
  • a base station may include a processor, a transceiver, and memory.
  • a processor may be configured to be operatively coupled with a memory and processor.
  • the transceiver receives a capability request of the UE from the base station; the transceiver transmits its capability information to the base station; the transceiver receives configuration information for an interrupted slot from the base station; the transceiver transmits a first SRS (Sounding Reference Signal) to the base station through a first antenna; the processor performs antenna switching; the transceiver transmits a second SRS to the base station through a second antenna; and the processor skips transmission and reception of signals in the interference slot;
  • the first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell, the antenna switching is switching between the first antenna and the second antenna, and the interference slot is the second antenna switching.
  • the interruption slot is based on i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the SCS of the second cell can do.
  • the processor comprising: receiving a request for capability (capability) of the UE from the base station; transmitting capability information of the UE to the base station; receiving configuration information for an interrupted slot from the base station; transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping signal transmission/reception in the interference slot.
  • capability capability
  • the processor comprising: receiving a request for capability (capability) of the UE from the base station; transmitting capability information of the UE to the base station; receiving configuration information for an interrupted slot from the base station; transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping signal transmission/reception in the interference slot.
  • SRS Sounding Reference Signal
  • the first SRS transmission, the second SRS transmission, and the antenna switching are performed in a first cell, the antenna switching is switching between the first antenna and the second antenna, and the interference slot is Based on the interruption occurring in the second cell by the antenna switching, the interference slot is i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the first cell It may be based on the SCS of 2 cells.
  • SCS subcarrier spacing
  • non-volatile computer-readable medium storing one or more instructions for providing a multicast service in a wireless communication system according to some embodiments of the present invention will be described.
  • the technical features of the present disclosure may be directly implemented as hardware, software executed by a processor, or a combination of the two.
  • a method performed by a wireless device may be implemented in hardware, software, firmware, or any combination thereof.
  • the software may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or other storage medium.
  • a storage medium are coupled to the processor such that the processor can read information from the storage medium.
  • the storage medium may be integrated into the processor.
  • the processor and storage medium may reside in the ASIC.
  • a processor and a storage medium may reside as separate components.
  • Computer-readable media can include tangible and non-volatile computer-readable storage media.
  • non-volatile computer-readable media may include random access memory (RAM), such as synchronization dynamic random access memory (SDRAM), read-only memory (ROM), or non-volatile random access memory (NVRAM).
  • RAM random access memory
  • SDRAM synchronization dynamic random access memory
  • ROM read-only memory
  • NVRAM non-volatile random access memory
  • EEPROM Read-only memory
  • flash memory magnetic or optical data storage media, or other media that can be used to store instructions or data structures.
  • Non-volatile computer-readable media may also include combinations of the above.
  • the methods described herein may be realized at least in part by computer readable communication media that carry or carry code in the form of instructions or data structures and which can be accessed, read, and/or executed by a computer.
  • a non-transitory computer-readable medium has one or more instructions stored thereon.
  • the stored one or more instructions may be executed by a processor of the base station.
  • the stored one or more instructions cause the processors to receive a capability request of the UE from a base station; transmitting capability information of the UE to the base station; receiving configuration information for an interrupted slot from the base station; transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping signal transmission/reception in the interference slot.
  • a capability request of the UE from a base station
  • transmitting capability information of the UE to the base station receiving configuration information for an interrupted slot from the base station; transmitting a first SRS (Sounding Reference Signal) to the base station through a first antenna; performing antenna switching; transmitting a second SRS to the base station through a second antenna; and skipping signal transmission/reception in the interference slot.
  • SRS Sounding Reference Signal
  • the antenna switching is switching between the first antenna and the second antenna
  • the interference slot is based on the interruption occurring in the second cell by the antenna switching
  • the interference slot is i) the capability information, ii) slot configuration, iii) the subcarrier spacing (SCS) of the first cell, and iv) the It may be based on the SCS of the second cell.
  • the specification may have various effects.

Landscapes

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

Abstract

Une divulgation de la présente description concerne un procédé qui permet à un équipement utilisateur (UE) de réaliser une communication. Le procédé fait appel aux étapes suivantes de : la réception d'une demande de capacité de l'UE provenant d'une station de base ; la transmission d'informations de capacité de l'UE à la station de base ; la réception d'informations de configuration concernant un créneau interrompu provenant de la station de base ; la transmission d'un premier signal de référence de sondage (SRS) à la station de base par l'intermédiaire d'une première antenne ; la réalisation d'une commutation d'antenne ; la transmission d'un second SRS à la station de base par l'intermédiaire d'une seconde antenne ; et le saut, dans le créneau interrompu, de la transmission et de la réception d'un signal par l'intermédiaire d'une seconde cellule, sur la base des informations de configuration concernant le créneau interrompu, la transmission du premier SRS, la transmission du second SRS, et la commutation d'antenne étant réalisées dans une première cellule, la commutation d'antenne étant une commutation entre la première antenne et la seconde antenne, le créneau interrompu étant un créneau dans lequel l'interruption se produit par la commutation d'antenne dans la seconde cellule, et le créneau interrompu étant basé sur i) les informations de capacité, ii) une configuration de créneau, iii) un espacement de sous-porteuse (SCS) de la première cellule, et iv) le SCS de la seconde cellule.
PCT/KR2021/014578 2020-10-21 2021-10-19 Interruption par commutation d'antenne de transmission de srs WO2022086122A1 (fr)

Applications Claiming Priority (4)

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KR20200136411 2020-10-21
KR10-2020-0136411 2020-10-21
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KR10-2021-0042851 2021-04-01

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Citations (4)

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US20190109688A1 (en) * 2017-08-11 2019-04-11 Lg Electronics Inc. Method for transmitting srs in a wireless communication system and apparatus therefor
US20190229859A1 (en) * 2018-01-24 2019-07-25 Qualcomm Incrporated Timing for reference signals in multiple numerology wireless communications
WO2020164589A1 (fr) * 2019-02-14 2020-08-20 Mediatek Singapore Pte. Ltd. Dispositifs électroniques et procédés de changement de transmission de signal de référence de sondage (srs)
US20200322108A1 (en) * 2016-04-01 2020-10-08 Futurewei Technologies, Inc. System and Method for SRS Switching, Transmission, and Enhancements

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US20200322108A1 (en) * 2016-04-01 2020-10-08 Futurewei Technologies, Inc. System and Method for SRS Switching, Transmission, and Enhancements
US20190109688A1 (en) * 2017-08-11 2019-04-11 Lg Electronics Inc. Method for transmitting srs in a wireless communication system and apparatus therefor
US20190229859A1 (en) * 2018-01-24 2019-07-25 Qualcomm Incrporated Timing for reference signals in multiple numerology wireless communications
WO2020164589A1 (fr) * 2019-02-14 2020-08-20 Mediatek Singapore Pte. Ltd. Dispositifs électroniques et procédés de changement de transmission de signal de référence de sondage (srs)

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