CN107005959A - 一种同步方法、装置及系统 - Google Patents

一种同步方法、装置及系统 Download PDF

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Publication number
CN107005959A
CN107005959A CN201580066976.1A CN201580066976A CN107005959A CN 107005959 A CN107005959 A CN 107005959A CN 201580066976 A CN201580066976 A CN 201580066976A CN 107005959 A CN107005959 A CN 107005959A
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subframe
synchronizing signal
network equipment
symbol
ofdm symbol
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CN201580066976.1A
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CN107005959B (zh
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王键
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/70735—Code identification
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2211/00—Orthogonal indexing scheme relating to orthogonal multiplex systems
    • H04J2211/003—Orthogonal indexing scheme relating to orthogonal multiplex systems within particular systems or standards
    • H04J2211/005—Long term evolution [LTE]
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H04L27/2678—Blind, i.e. without using known symbols using cyclostationarities, e.g. cyclic prefix or postfix
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

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

Abstract

本发明的实施例提供一种同步方法、装置及系统，涉及通信领域，能够在非授权载波中实现设备之间传输数据帧的同步。该同步方法，应用于非授权载波的同步，网络设备在第一子帧中设置同步信号；所述网络设备向用户设备发送所述第一子帧或所述第一子帧和第二子帧，所述第一子帧包括M个正交频分复用OFDM符号，所述第二子帧包括N个OFDM符号；其中M和N为正整数，且M>N,所述第一子帧和所述第二子帧为非授权载波子帧。本发明的实施例用于同步信号传输。

Description

PCT国内申请，说明书已公开。

Claims (30)

  1. PCT国内申请，权利要求书已公开。
CN201580066976.1A 2015-01-21 2015-01-21 一种同步方法、装置及系统 Active CN107005959B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/071221 WO2016115695A1 (zh) 2015-01-21 2015-01-21 一种同步方法、装置及系统

Publications (2)

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CN107005959A true CN107005959A (zh) 2017-08-01
CN107005959B CN107005959B (zh) 2020-04-21

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US (1) US10567206B2 (zh)
EP (1) EP3242512B1 (zh)
KR (1) KR102201789B1 (zh)
CN (1) CN107005959B (zh)
WO (1) WO2016115695A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117320046A (zh) * 2023-11-28 2023-12-29 深圳市鼎阳科技股份有限公司 Crs搜索方法、lte时间对齐误差测定方法和用户设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109391578B (zh) * 2017-08-11 2022-07-22 华为技术有限公司 信号发送方法、信号接收方法、终端设备及网络设备
US10743371B2 (en) * 2018-01-29 2020-08-11 Apple Inc. Syncrhonization signals for multefire narrowband internet-of-things (MF NB-IoT) operation in unlicensed spectrum
US11659601B2 (en) * 2018-12-28 2023-05-23 Panasonic Intellectual Property Corporation Of America Transmission device, reception device, transmission method, and reception method for random access operation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102239649A (zh) * 2008-12-02 2011-11-09 Lg电子株式会社 在下行链路多输入多输出系统中发送参考信号的方法
CN102396198A (zh) * 2009-03-17 2012-03-28 三星电子株式会社 用于在多流传输中映射导频信号的方法和系统
US20140050206A1 (en) * 2011-04-28 2014-02-20 Lg Electronics Inc. Method and apparatus for transmitting synchronization signal in carrier aggregation system
CN103686978A (zh) * 2013-12-24 2014-03-26 深圳市双赢伟业科技股份有限公司 无线终端设备发射功率控制方法
CN104009784A (zh) * 2008-08-05 2014-08-27 Lg电子株式会社 用于下行多输入多输出系统的基准信号传输方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104411279B (zh) * 2012-06-29 2016-11-09 宝洁公司 用于制造可重复扣紧的制品的方法
CN103686987A (zh) 2012-09-26 2014-03-26 北京三星通信技术研究有限公司 发送和接收同步信道、广播信道的方法和设备
US9986373B2 (en) * 2015-01-12 2018-05-29 Intel Corporation LTE-A systems and method of DRS based positioning

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104009784A (zh) * 2008-08-05 2014-08-27 Lg电子株式会社 用于下行多输入多输出系统的基准信号传输方法
CN102239649A (zh) * 2008-12-02 2011-11-09 Lg电子株式会社 在下行链路多输入多输出系统中发送参考信号的方法
CN102396198A (zh) * 2009-03-17 2012-03-28 三星电子株式会社 用于在多流传输中映射导频信号的方法和系统
US20140050206A1 (en) * 2011-04-28 2014-02-20 Lg Electronics Inc. Method and apparatus for transmitting synchronization signal in carrier aggregation system
CN103686978A (zh) * 2013-12-24 2014-03-26 深圳市双赢伟业科技股份有限公司 无线终端设备发射功率控制方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117320046A (zh) * 2023-11-28 2023-12-29 深圳市鼎阳科技股份有限公司 Crs搜索方法、lte时间对齐误差测定方法和用户设备
CN117320046B (zh) * 2023-11-28 2024-03-01 深圳市鼎阳科技股份有限公司 Crs搜索方法、lte时间对齐误差测定方法和用户设备

Also Published As

Publication number Publication date
WO2016115695A1 (zh) 2016-07-28
US10567206B2 (en) 2020-02-18
KR102201789B1 (ko) 2021-01-11
CN107005959B (zh) 2020-04-21
EP3242512A4 (en) 2017-11-29
US20180013601A1 (en) 2018-01-11
EP3242512A1 (en) 2017-11-08
KR20170106420A (ko) 2017-09-20
EP3242512B1 (en) 2020-11-25

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