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 PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- subframe
- synchronizing signal
- network equipment
- symbol
- ofdm symbol
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- 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)
- PCT国内申请,权利要求书已公开。
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)
Publication Number | Publication Date |
---|---|
CN107005959A true CN107005959A (zh) | 2017-08-01 |
CN107005959B CN107005959B (zh) | 2020-04-21 |
Family
ID=56416280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201580066976.1A Active CN107005959B (zh) | 2015-01-21 | 2015-01-21 | 一种同步方法、装置及系统 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10567206B2 (zh) |
EP (1) | EP3242512B1 (zh) |
KR (1) | KR102201789B1 (zh) |
CN (1) | CN107005959B (zh) |
WO (1) | WO2016115695A1 (zh) |
Cited By (1)
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)
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)
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)
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 |
-
2015
- 2015-01-21 WO PCT/CN2015/071221 patent/WO2016115695A1/zh active Application Filing
- 2015-01-21 EP EP15878373.8A patent/EP3242512B1/en active Active
- 2015-01-21 US US15/545,471 patent/US10567206B2/en active Active
- 2015-01-21 CN CN201580066976.1A patent/CN107005959B/zh active Active
- 2015-01-21 KR KR1020177022998A patent/KR102201789B1/ko active IP Right Grant
Patent Citations (5)
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)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10820288B2 (en) | Synchronization method, user equipment, and base station | |
US11665656B2 (en) | Information transmission method and information transmission apparatus | |
EP3119049B1 (en) | Detecting physical random access channel preambles in a long term evolution communication system | |
CN105684324B (zh) | 用于传输同步信号的系统和方法 | |
EP3343856A1 (en) | Method and apparatus for transmitting synchronization signal | |
AU2016422767B2 (en) | Pilot signal transmission method and device | |
WO2017113514A1 (zh) | 传输数据的方法和用户设备 | |
CN103685118A (zh) | 一种数据的发送方法及装置 | |
CN105515741A (zh) | 一种在非授权频段上的数据传输方法及装置 | |
EP3402145A1 (en) | Method and device for pilot signal transmission and channel estimation | |
CN107005959A (zh) | 一种同步方法、装置及系统 | |
CN104202712A (zh) | 设备到设备同步信号的发送方法及装置、用户设备 | |
CN108886717A (zh) | 传输系统信息的方法、基站和终端 | |
JP2022505782A (ja) | リソース指示方法及びその装置、通信システム | |
JP2020530738A (ja) | 制御情報送信/受信方法及び装置 | |
CN110166213B (zh) | 参考信号的发送及接收方法、基站、终端、存储介质、系统 | |
WO2015139269A1 (zh) | 一种信息的传输方法及装置 | |
JP7032495B2 (ja) | 同期方法、ユーザ機器および基地局 | |
CN109479287A (zh) | 一种信息传输方法及装置 | |
US9331881B2 (en) | Methods and systems for embedding supplementary data channel in OFDM-based communication systems | |
CN114270977A (zh) | 下行链路控制信息的发送和接收 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |