WO2020013447A1 - 무선 통신 시스템에서 물리 하향링크 공유 채널을 송수신하기 위한 방법 및 이를 지원하는 장치 - Google Patents

무선 통신 시스템에서 물리 하향링크 공유 채널을 송수신하기 위한 방법 및 이를 지원하는 장치 Download PDF

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Publication number
WO2020013447A1
WO2020013447A1 PCT/KR2019/006646 KR2019006646W WO2020013447A1 WO 2020013447 A1 WO2020013447 A1 WO 2020013447A1 KR 2019006646 W KR2019006646 W KR 2019006646W WO 2020013447 A1 WO2020013447 A1 WO 2020013447A1
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WIPO (PCT)
Prior art keywords
information
pdsch
downlink
uplink
transmission
Prior art date
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Ceased
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PCT/KR2019/006646
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English (en)
French (fr)
Korean (ko)
Inventor
이현호
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LG Electronics Inc
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LG Electronics Inc
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Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority to EP19816188.7A priority Critical patent/EP3627947B1/en
Priority to JP2019562542A priority patent/JP6985418B2/ja
Priority to CN201980002744.8A priority patent/CN110892775B/zh
Publication of WO2020013447A1 publication Critical patent/WO2020013447A1/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences

Definitions

  • FIG. 19 illustrates an example of generating and transmitting five SC-FDMA symbols during one slot in a wireless communication system to which the present invention can be applied.
  • URLLC includes new services that will change the industry through ultra-reliable / low-latency links available, such as remote control of key infrastructure and self-driving vehicles.
  • the level of reliability and latency is essential for smart grid control, industrial automation, robotics, drone control and coordination.
  • Machine learning refers to the field of researching methodologies that define and solve various problems in the field of artificial intelligence. do.
  • Machine learning is defined as an algorithm that improves the performance of a task through a consistent experience with a task.
  • the autonomous vehicle may be viewed as a robot having an autonomous driving function.
  • the input unit 120 may acquire input data to be used when acquiring an output using training data and a training model for model training.
  • the input unit 120 may obtain raw input data, and in this case, the processor 180 or the running processor 130 may extract input feature points as preprocessing on the input data.
  • the running processor 130 may perform AI processing together with the running processor 240 of the AI server 200.
  • the AI system 1 may include at least one of an AI server 200, a robot 100a, an autonomous vehicle 100b, an XR device 100c, a smartphone 100d, or a home appliance 100e.
  • This cloud network 10 is connected.
  • the robot 100a to which the AI technology is applied, the autonomous vehicle 100b, the XR device 100c, the smartphone 100d or the home appliance 100e may be referred to as the AI devices 100a to 100e.
  • the robot 100a may be applied to an AI technology, and may be implemented as a guide robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, or the like.
  • the robot 100a acquires state information of the robot 100a by using sensor information obtained from various kinds of sensors, detects (recognizes) the surrounding environment and an object, generates map data, or moves a route and travels. You can decide on a plan, determine a response to a user interaction, or determine an action.
  • the size of the various fields in the time domain Is expressed as a multiple of the time unit. From here, ego, to be.
  • Downlink and uplink transmissions It consists of a radio frame having a section of (radio frame).
  • each radio frame is It consists of 10 subframes having a section of.
  • Point A serves as a common reference point of the resource block grid and can be obtained as follows.
  • control information transmitted on the PUCCH may be distinguished using a cyclically shifted sequence having different cyclic shift (CS) values.
  • the cyclically shifted sequence may be generated by cyclically shifting a base sequence by a specific cyclic shift amount.
  • the specific CS amount is indicated by the cyclic shift index (CS index).
  • the number of cyclic shifts available may vary depending on the delay spread of the channel.
  • Various kinds of sequences may be used as the base sequence, and the above-described CAZAC sequence is one example.
  • PUCCH format 2 may be used for transmission of CQI and HARQ ACK / NACK.
  • the number of spreading codes supported for ACK / NACK information is limited by the number of RS symbols. That is, since the number of RS transmission SC-FDMA symbols is smaller than the number of ACK / NACK information transmission SC-FDMA symbols, the multiplexing capacity of the RS is smaller than that of the ACK / NACK information.
  • a symbol sequence is transmitted in a time-domain spread by an orthogonal cover code (OCC), and multiplexing control signals of several UEs in the same RB using the OCC.
  • OCC orthogonal cover code
  • PUCCH format 2 one symbol sequence is transmitted over a time domain and UE multiplexing is performed using a cyclic shift of a CAZAC sequence
  • PUCCH format 3 one symbol sequence is transmitted over a frequency domain and OCC based UE multiplexing is performed using time-domain spreading.
  • Spreading factor 5
  • the UE may only use TTI, symbol, and / or time interval indicated by DL by UL / DL configuration by SIB1 (or TTI, indicated by UL).
  • the rules may be defined, promised, and / or set up to assume that there is a PDSCH corresponding to repetition (or only for a time interval) and / or that a PUSCH is transmitted.
  • the currently repetitive TB (transport) is transmitted for TTI indicated and / or changed to DL through PDCCH set to UL by higher layer signal subframeAssignment but CRC scrambled by physical layer signal eIMTA-RNTI. Do not monitor, decode, discard, or expect control channels that schedule repetitions for other TBs.
  • the TTI indicated by the DL and / or special by the UL / DL configuration (eg, PDCCH CRC scrambled by eIMTA-RNTI) by the physical layer signal Rule to assume that there is a PDSCH corresponding to repetition (or a PUSCH is transmitted) for a symbol, and / or time period (or for a TTI, symbol, and / or time period indicated by UL and / or special).
  • the UL / DL configuration between the UE and the base station may be different.
  • the embodiments proposed herein may be implemented independently, but may be implemented in a combination (or merge) form of some embodiments.
  • the information on whether the embodiments are applied (or the information on the rules of the embodiments) is a rule to inform the base station through predefined signaling (eg, physical layer signaling and / or higher layer signaling, etc.) to the terminal. This may be defined and / or set.
  • 24 is a flowchart illustrating a method of operating a terminal proposed in the present specification.
  • the reliability and latency performance of the PDSCH repetitive transmission / reception operation can be improved.
  • the first control channel may be a PDCCH scrambled by CRC by Enhanced Interference Mitigation and Traffic Adaptation (eIMTA) -Radio Network Temporary Identifier (RNTI).
  • eIMTA Enhanced Interference Mitigation and Traffic Adaptation
  • RNTI Radio Network Temporary Identifier
  • the second control channel scheduling the PDSCH repetition for the second TB in the TTI is discarded.
  • the second control channel may be a PDCCH or an Enhanced Physical Downlink Control Channel (EPDCCH).
  • the UE while the UE repeatedly receives the first TB, the UE performs repetition of the second TB in the TTI indicated by uplink by the first information and changed and / or indicated by downlink by the second information.
  • the second control channel scheduling may not be monitored (and / or decoded) or discarded, and the first TB may be repeatedly received.
  • the second TB may mean a TB different from the first TB.
  • the indicating control channel eg, group-common PDCCH including a TPC command, PDCCH indicating a DL / UL configuration, or PDCCH indicating a DL / UL slot format, etc.
  • the indicating control channel may be monitored and / or decoded.
  • the first control channel may be a physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • the TTI may be a subslot, a slot, a subframe or a special subframe, one or more symbols, or a specific time interval.
  • a wireless communication system includes a base station 2610 and a plurality of terminals 2620 located in an area of a base station 2610.
  • the base station 2610 and the terminal 2620 may be referred to as a wireless device.
  • FIG. 27 is a block diagram illustrating a communication device according to one embodiment of the present invention.
  • FIG. 27 is a diagram illustrating the terminal of FIG. 26 in more detail.
  • the scrambled bit is modulated into a complex modulation symbol by modulator 3102.
  • the modulator may be arranged as a complex modulation symbol representing a position on a signal constellation by modulating the scrambled bit according to a predetermined modulation scheme.
  • the modulation scheme is not limited, and pi / 2-Binary Phase Shift Keying (pi / 2-BPSK), m-Phase Shift Keying (m-PSK), or m-Quadrature Amplitude Modulation (m-QAM) It can be used for modulation of the encoded data.
  • the terminal is a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, a slate PC, a tablet PC. (tablet PC), ultrabook, wearable device (e.g. smartwatch, glass glass, head mounted display), foldable device And the like.
  • the HMD is a display device of a type worn on the head and may be used to implement VR or AR.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/KR2019/006646 2018-07-09 2019-06-03 무선 통신 시스템에서 물리 하향링크 공유 채널을 송수신하기 위한 방법 및 이를 지원하는 장치 Ceased WO2020013447A1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19816188.7A EP3627947B1 (en) 2018-07-09 2019-06-03 Method for transmitting and receiving physical downlink shared channel in wireless communication system, and apparatus supporting same
JP2019562542A JP6985418B2 (ja) 2018-07-09 2019-06-03 無線通信システムにおける物理ダウンリンク共有チャネルを送受信するための方法、及びこれを支援する装置
CN201980002744.8A CN110892775B (zh) 2018-07-09 2019-06-03 在无线通信系统中发送和接收物理下行链路共享信道的方法及其装置

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201862695775P 2018-07-09 2018-07-09
US62/695,775 2018-07-09
US201862716327P 2018-08-08 2018-08-08
US62/716,327 2018-08-08
US201862737958P 2018-09-28 2018-09-28
US62/737,958 2018-09-28

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WO2020013447A1 true WO2020013447A1 (ko) 2020-01-16

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US (3) US10631285B2 (https=)
EP (1) EP3627947B1 (https=)
JP (1) JP6985418B2 (https=)
KR (2) KR102030829B1 (https=)
CN (1) CN110892775B (https=)
WO (1) WO2020013447A1 (https=)

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CN110892775B (zh) 2023-02-28
US11140674B2 (en) 2021-10-05
US20200015206A1 (en) 2020-01-09
KR102030829B1 (ko) 2019-10-10
US10631285B2 (en) 2020-04-21
CN110892775A (zh) 2020-03-17
KR102248693B1 (ko) 2021-05-07
EP3627947A4 (en) 2020-08-26
KR20200006023A (ko) 2020-01-17
EP3627947A1 (en) 2020-03-25
US11160069B2 (en) 2021-10-26
JP6985418B2 (ja) 2021-12-22

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