PL3437245T3 - Sposób i urządzenie do synchronizacji komunikacji Pojazd-X - Google Patents

Sposób i urządzenie do synchronizacji komunikacji Pojazd-X

Info

Publication number
PL3437245T3
PL3437245T3 PL17775911.5T PL17775911T PL3437245T3 PL 3437245 T3 PL3437245 T3 PL 3437245T3 PL 17775911 T PL17775911 T PL 17775911T PL 3437245 T3 PL3437245 T3 PL 3437245T3
Authority
PL
Poland
Prior art keywords
synchronization
vehicle
communication
Prior art date
Application number
PL17775911.5T
Other languages
English (en)
Inventor
Sung Jun Yoon
Original Assignee
Innovative Technology Lab Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Innovative Technology Lab Co., Ltd. filed Critical Innovative Technology Lab Co., Ltd.
Publication of PL3437245T3 publication Critical patent/PL3437245T3/pl

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • H04W56/0015Synchronization between nodes one node acting as a reference for the others
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, 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
    • H04B1/3822Transceivers, 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 specially adapted for use in vehicles
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/261Details of reference signals
    • H04L27/2613Structure of the reference signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2626Arrangements specific to the transmitter only
    • H04L27/2627Modulators
    • H04L27/2634Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2689Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2692Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00Arrangements for synchronising receiver with transmitter
    • H04L7/0079Receiver details
    • H04L7/0087Preprocessing of received signal for synchronisation, e.g. by code conversion, pulse generation or edge detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00Arrangements for synchronising receiver with transmitter
    • H04L7/0091Transmitter details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00Arrangements for synchronising receiver with transmitter
    • H04L7/0095Arrangements for synchronising receiver with transmitter with mechanical means
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • H04W56/0025Synchronization between nodes synchronizing potentially movable access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Discrete Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
PL17775911.5T 2016-04-01 2017-03-31 Sposób i urządzenie do synchronizacji komunikacji Pojazd-X PL3437245T3 (pl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160040411A KR102467752B1 (ko) 2016-04-01 2016-04-01 V2x 통신에서 동기화 방법 및 장치
PCT/KR2017/003573 WO2017171487A2 (en) 2016-04-01 2017-03-31 Method and apparatus for synchronization for vehicle-to-x communication

Publications (1)

Publication Number Publication Date
PL3437245T3 true PL3437245T3 (pl) 2022-08-29

Family

ID=59962213

Family Applications (1)

Application Number Title Priority Date Filing Date
PL17775911.5T PL3437245T3 (pl) 2016-04-01 2017-03-31 Sposób i urządzenie do synchronizacji komunikacji Pojazd-X

Country Status (7)

Country Link
US (2) US11363546B2 (pl)
EP (2) EP3437245B1 (pl)
KR (3) KR102467752B1 (pl)
CN (2) CN109314632B (pl)
ES (1) ES2920953T3 (pl)
PL (1) PL3437245T3 (pl)
WO (1) WO2017171487A2 (pl)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102063084B1 (ko) * 2016-09-27 2020-01-07 엘지전자 주식회사 무선 통신 시스템에서 장치 대 장치 통신 단말의 동기 신호 송수신 방법 및 장치
CN109412764B (zh) * 2017-08-17 2022-07-29 华为技术有限公司 同步方法和装置
CN109561499B (zh) * 2017-09-26 2021-09-07 捷开通讯(深圳)有限公司 寻呼方法、装置及可读存储介质
US11206628B2 (en) * 2017-09-28 2021-12-21 Samsung Electronics Co., Ltd. Method and equipment for selecting synchronization reference source for multi-carrier sidelink communication
US10157539B1 (en) * 2017-11-01 2018-12-18 Qualcomm Incorporated Techniques and apparatuses for prioritizing vehicle-to-everything (V2X) communication messages based on threat level estimation
US11290957B2 (en) * 2017-11-17 2022-03-29 Samsung Electronics Co., Ltd. Sequence design of wake-up signals and resynchronization sequence
CN111279762B (zh) * 2017-11-27 2021-12-28 华为技术有限公司 同步方法及装置
CN110248404A (zh) * 2018-03-09 2019-09-17 维沃移动通信有限公司 信息同步的方法、装置和终端设备
WO2019226026A1 (ko) * 2018-05-25 2019-11-28 엘지전자 주식회사 무선통신시스템에서 사이드 링크 신호를 전송하는 방법 및 장치
CN110662286B (zh) * 2018-06-29 2020-11-10 电信科学技术研究院有限公司 一种同步源的确定方法及终端
CN109155907B (zh) 2018-08-06 2021-09-28 北京小米移动软件有限公司 车联网同步方法及装置
KR102604254B1 (ko) * 2018-08-10 2023-11-20 주식회사 아이티엘 Nr v2x 시스템을 위한 동기화 절차 수행 방법 및 그 장치
CN112615704B (zh) * 2018-08-10 2022-03-08 华为技术有限公司 一种同步信号的传输方法和装置
KR102492403B1 (ko) 2018-08-10 2023-01-27 주식회사 아이티엘 무선 통신 시스템에서 사이드링크 동기화 신호 송수신 방법 및 장치
KR102637452B1 (ko) * 2018-08-17 2024-02-16 주식회사 아이티엘 Nr v2x 시스템을 위한 동기화 신호 송수신 방법 및 그 장치
US20210360549A1 (en) * 2018-09-20 2021-11-18 Lg Electronics Inc. Method and terminal for transmitting and receiving signal in wireless communication system
US11017664B2 (en) * 2018-09-28 2021-05-25 At&T Mobility Ii Llc Integrated telecommunications roadside unit
KR20200050288A (ko) 2018-11-01 2020-05-11 삼성전자주식회사 무선 통신 시스템에서 동기 신호 송수신 방법 및 장치
US12082130B2 (en) * 2018-11-02 2024-09-03 Beijing Xiaomi Mobile Software Co., Ltd. Method and apparatus for sending synchronization signal
CN111356234A (zh) * 2018-12-21 2020-06-30 夏普株式会社 由用户设备执行的方法以及用户设备
US11963116B2 (en) * 2019-01-10 2024-04-16 Sharp Kabushiki Kaisha Synchronization for V2X communication
US11228993B2 (en) * 2019-02-07 2022-01-18 Qualcomm Incorporated Coordinated synchronization among road side synchronization devices
CN111565447B (zh) * 2019-02-14 2022-09-09 大唐移动通信设备有限公司 一种同步广播信息的发送方法、接收方法及设备
CN113424606A (zh) * 2019-02-14 2021-09-21 苹果公司 用于具有优化的接收器处理的增强型车辆到一切使用案例的nr侧链路同步信号的设计
WO2020168452A1 (en) * 2019-02-18 2020-08-27 Mediatek Singapore Pte. Ltd. Control channel design for v2x communication
WO2020204504A1 (ko) * 2019-03-29 2020-10-08 엘지전자 주식회사 무선 통신 시스템에서 사이드링크 동기 신호 블록을 생성하는 방법 및 장치
WO2020221457A1 (en) * 2019-05-02 2020-11-05 Huawei Technologies Co., Ltd. Synchronisation procedures
CN112188446B (zh) * 2019-07-05 2022-04-08 大唐移动通信设备有限公司 一种同步信号发送方法、终端及装置、存储介质
CN110535550B (zh) * 2019-08-15 2021-11-19 阿波罗智能技术(北京)有限公司 时钟同步的方法、装置、设备和存储介质
EP3996316A4 (en) * 2019-08-15 2022-08-24 LG Electronics Inc. DMRS TRANSMISSION PROCEDURE FOR PSCCH IN CONNECTION WITH NR V2X AND SYNCHRONIZATION
US20220295426A1 (en) * 2019-08-19 2022-09-15 Lg Electronics Inc. Method and device for transmitting s-ssb in nr v2
US20220295253A1 (en) * 2019-09-04 2022-09-15 Lg Electronics Inc. Method for communicating with vehicle in wireless communication system, and user terminal therefor
CN112584485A (zh) * 2019-09-30 2021-03-30 夏普株式会社 由用户设备执行的方法以及用户设备
WO2021062862A1 (en) * 2019-10-02 2021-04-08 Mediatek Singapore Pte. Ltd. Synchronization reference reselection procedure design for v2x communication
US20220330188A1 (en) * 2019-10-02 2022-10-13 Lg Electronics Inc. Method and apparatus for transmitting s-ssb in nr v2x
WO2021127967A1 (zh) * 2019-12-24 2021-07-01 华为技术有限公司 用于信号同步的方法、装置和系统
WO2021246804A1 (ko) * 2020-06-03 2021-12-09 엘지전자 주식회사 Nr v2x에서 다수의 시간 동기를 선택하는 방법 및 장치
US20230247570A1 (en) * 2022-01-31 2023-08-03 Qualcomm Incorporated Aperiodic tracking reference signals for sidelink communications
CN118524506A (zh) * 2023-02-20 2024-08-20 华为技术有限公司 一种通信方法及装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100938756B1 (ko) 2007-07-06 2010-01-26 엘지전자 주식회사 무선통신 시스템에서 셀 탐색 과정을 수행하는 방법
US9037155B2 (en) * 2008-10-28 2015-05-19 Sven Fischer Time of arrival (TOA) estimation for positioning in a wireless communication network
US8831119B2 (en) 2010-06-28 2014-09-09 Lg Electronics Inc. Method and apparatus for transmitting synchronization signal in multi-node system
US20130229953A1 (en) * 2011-08-16 2013-09-05 Samsung Electronics Co., Ltd. Apparatus and method for indicating synchronization signals in a wireless network
US9955442B2 (en) * 2012-03-20 2018-04-24 Qualcomm Incorporated Synchronization channel design for new carrier type
US9143984B2 (en) 2012-04-13 2015-09-22 Intel Corporation Mapping of enhanced physical downlink control channels in a wireless communication network
US9609647B2 (en) * 2012-09-25 2017-03-28 Lg Electronics Inc. Method for receiving downlink signal, and user device; and method for transmitting downlink signal, and base station
KR102152712B1 (ko) * 2012-12-09 2020-09-07 엘지전자 주식회사 무선 통신 시스템에서 커버리지 내부 단말과 커버리지 외부 단말 간 직접 통신을 위한 동기 획득 방법 및 이를 위한 장치
US9661601B2 (en) * 2012-12-13 2017-05-23 Qualcomm Incorporated Crowdsourcing information in a communication network using small cells
CN109547081B (zh) * 2013-04-19 2022-04-19 中兴通讯股份有限公司 同步信号的发送、接收方法、装置及同步信号的处理系统
US9750044B2 (en) * 2013-05-10 2017-08-29 Qualcomm Incorporated Methods and apparatus for network synchronization
KR102058876B1 (ko) 2013-08-19 2019-12-26 삼성전자 주식회사 장치 간 통신에서의 혼잡 상황 해결 방법 및 장치
US10034253B2 (en) * 2014-11-17 2018-07-24 Telefonaktiebolaget Lm Ericsson (Publ) Cell search procedure frame format
JP6736653B2 (ja) * 2015-07-08 2020-08-05 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおいて装置対装置通信端末の同期信号送受信方法及び装置
US20180242374A1 (en) * 2015-08-13 2018-08-23 Ntt Docomo, Inc. User terminal, radio base station and radio communication method
JP6450012B2 (ja) * 2015-08-13 2019-01-09 株式会社Nttドコモ ユーザ装置及び信号同期方法
WO2017052687A1 (en) * 2015-09-24 2017-03-30 Intel Corporation Systems, methods and devices for cellular synchronization references
CN108141340B (zh) * 2015-10-01 2020-11-24 Lg 电子株式会社 在d2d通信中发送参考信号的方法和终端
WO2017057321A1 (ja) * 2015-10-02 2017-04-06 株式会社Nttドコモ ユーザ装置及び同期方法
US10383147B2 (en) 2015-12-28 2019-08-13 Samsung Electronics Co., Ltd. Methods and apparatus for resource collision avoidance in vehicle to vehicle communication
CN107027164A (zh) * 2016-01-29 2017-08-08 电信科学技术研究院 一种同步方法及装置
WO2017134605A1 (en) * 2016-02-05 2017-08-10 Nokia Technologies Oy Methods and apparatuses for controlling vehicle-to-vehicle interference

Also Published As

Publication number Publication date
WO2017171487A3 (en) 2018-08-23
WO2017171487A2 (en) 2017-10-05
EP4033712A1 (en) 2022-07-27
CN109314632A (zh) 2019-02-05
ES2920953T3 (es) 2022-08-12
CN114143867B (zh) 2023-10-24
US20220279464A1 (en) 2022-09-01
US11363546B2 (en) 2022-06-14
CN114143867A (zh) 2022-03-04
EP3437245A2 (en) 2019-02-06
EP3437245A4 (en) 2019-12-04
KR102467752B1 (ko) 2022-11-16
KR102660214B1 (ko) 2024-04-24
KR20240056472A (ko) 2024-04-30
US20170289935A1 (en) 2017-10-05
KR20170112799A (ko) 2017-10-12
CN109314632B (zh) 2021-11-05
EP3437245B1 (en) 2022-04-27
KR20220156782A (ko) 2022-11-28

Similar Documents

Publication Publication Date Title
PL3437245T3 (pl) Sposób i urządzenie do synchronizacji komunikacji Pojazd-X
ZA201905724B (en) Communication apparatus and communication method
EP3528546C0 (en) DATA COMMUNICATION METHOD AND DEVICE
EP3510820A4 (en) COMMUNICATION APPARATUS AND COMMUNICATION METHOD
HK1223485A1 (zh) 用於設備到設備通信的同步的方法和裝置
SG11202003992WA (en) Communication method and apparatus
EP3413626A4 (en) METHOD AND DEVICE FOR IMPLEMENTING V2X COMMUNICATION
EP3570476C0 (en) COMMUNICATION METHOD AND DEVICE
EP3145161A4 (en) Automatic wireless access network configuration synchronization method and apparatus
ZA201904240B (en) Communication apparatus and communication method
EP3410792A4 (en) METHOD AND APPARATUS FOR SYNCHRONIZATION
EP3487221A4 (en) COMMUNICATION PROCESS AND DEVICE
EP3557803A4 (en) V2X DEVICE AND COMMUNICATION PROCESS
EP3461199A4 (en) COMMUNICATION METHOD AND COMMUNICATION DEVICE
EP3478010A4 (en) COMMUNICATION METHOD AND APPARATUS
EP3282605A4 (en) Configuration method and apparatus for synchronization network
SG11201800623UA (en) Communication apparatus and communication method
SG11201707542UA (en) Communication apparatus and communication method
HK1255546A1 (zh) 通信方法和通信裝置
ZA201808125B (en) Data communication method and apparatus
EP3487106A4 (en) COMMUNICATION PROCESS AND DEVICE
SG11201706934RA (en) Communication apparatus and communication method
EP3174237A4 (en) Time synchronization method and apparatus for network devices and time synchronization server
EP3503641A4 (en) COMMUNICATION METHOD AND APPARATUS
EP3461212A4 (en) COMMUNICATION METHOD AND APPARATUS