CN101669341B - Ofdm系统中的同步时间差测量 - Google Patents
Ofdm系统中的同步时间差测量 Download PDFInfo
- Publication number
- CN101669341B CN101669341B CN200780052797.8A CN200780052797A CN101669341B CN 101669341 B CN101669341 B CN 101669341B CN 200780052797 A CN200780052797 A CN 200780052797A CN 101669341 B CN101669341 B CN 101669341B
- Authority
- CN
- China
- Prior art keywords
- base station
- mobile terminal
- time
- ofdm signal
- time difference
- 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.)
- Active
Links
Images
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
- H04L27/2662—Symbol synchronisation
-
- 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
- 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
- H04L27/2681—Details of algorithms characterised by constraints
- H04L27/2688—Resistance to perturbation, e.g. noise, interference or fading
-
- 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
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
- H04L25/0216—Channel estimation of impulse response with estimation of channel length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/022—Channel estimation of frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding 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
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
-
- 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
-
- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE07010432 | 2007-04-30 | ||
SE0701043 | 2007-04-30 | ||
SE0701043-2 | 2007-04-30 | ||
PCT/SE2007/051076 WO2008133567A1 (en) | 2007-04-30 | 2007-12-21 | Synchronization time difference measurements in ofdm systems |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410058040.1A Division CN103929392A (zh) | 2007-04-30 | 2007-12-21 | Ofdm系统中的同步时间差测量 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101669341A CN101669341A (zh) | 2010-03-10 |
CN101669341B true CN101669341B (zh) | 2014-03-12 |
Family
ID=39925912
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410058040.1A Pending CN103929392A (zh) | 2007-04-30 | 2007-12-21 | Ofdm系统中的同步时间差测量 |
CN200780052797.8A Active CN101669341B (zh) | 2007-04-30 | 2007-12-21 | Ofdm系统中的同步时间差测量 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410058040.1A Pending CN103929392A (zh) | 2007-04-30 | 2007-12-21 | Ofdm系统中的同步时间差测量 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8102754B2 (zh) |
EP (1) | EP2140646B1 (zh) |
JP (1) | JP5309133B2 (zh) |
CN (2) | CN103929392A (zh) |
ES (1) | ES2478011T3 (zh) |
HK (1) | HK1199681A1 (zh) |
RU (1) | RU2463746C2 (zh) |
WO (1) | WO2008133567A1 (zh) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008140225A1 (en) * | 2007-05-09 | 2008-11-20 | Lg Electronics Inc. | Delay control in a mobile communication system |
KR100904533B1 (ko) * | 2008-01-11 | 2009-06-25 | 엘지전자 주식회사 | 전송 타이밍 조절 방법, 연속적인 패킷 전송 방법 및 이동통신 단말 |
US8483161B2 (en) * | 2008-04-30 | 2013-07-09 | Lg Electronics Inc. | System information transmission method and subframe structure |
US20100067604A1 (en) * | 2008-09-17 | 2010-03-18 | Texas Instruments Incorporated | Network multiple antenna transmission employing an x2 interface |
US8693442B2 (en) | 2008-09-22 | 2014-04-08 | Blackberry Limited | Multi-site MIMO cooperation in cellular network |
US8774230B2 (en) * | 2009-04-08 | 2014-07-08 | Qualcomm Incorporated | Conveying synchronization stratum information |
JP2011004099A (ja) * | 2009-06-18 | 2011-01-06 | Fujitsu Ltd | 移動通信システムの移動局、送信タイミング調整装置、送信タイミング調整方法 |
JP4918580B2 (ja) * | 2009-08-27 | 2012-04-18 | 株式会社エヌ・ティ・ティ・ドコモ | 無線基地局、移動局、移動通信方法及び測定方法 |
EP2517509A1 (en) * | 2009-12-23 | 2012-10-31 | Telefonaktiebolaget L M Ericsson (PUBL) | Base station synchronisation |
EP2567583B1 (en) * | 2010-05-06 | 2016-03-09 | Telefonaktiebolaget LM Ericsson (publ) | Method and arrangement in a wireless communication system |
WO2011151662A1 (en) * | 2010-06-02 | 2011-12-08 | Nokia Corporation | Method and apparatus for adjacent-channel emission limit depending on synchronization of interfered receiver |
US20120309415A1 (en) * | 2010-07-21 | 2012-12-06 | Zulutime, Llc | Multipath compensation within geolocation of mobile devices |
US8717920B2 (en) * | 2010-10-08 | 2014-05-06 | Telefonaktiebolaget L M Ericsson (Publ) | Signalling mechanism for multi-tiered intra-band carrier aggregation |
EP4170937A1 (en) * | 2010-12-10 | 2023-04-26 | Sun Patent Trust | Signal generation method and signal generation device |
CN102647781A (zh) * | 2011-02-17 | 2012-08-22 | 中兴通讯股份有限公司 | Lte的时间提前调整方法及基站 |
US9350502B2 (en) * | 2011-07-27 | 2016-05-24 | Lg Electronics Inc. | Method and apparatus for transmitting synchronization signal in wireless communication system |
CN102307385B (zh) * | 2011-08-19 | 2014-09-10 | 电信科学技术研究院 | 一种多载波系统中的定位方法、装置及系统 |
KR102092579B1 (ko) | 2011-08-22 | 2020-03-24 | 삼성전자 주식회사 | 이동통신 시스템에서 복수 개의 주파수 밴드 지원 방법 및 장치 |
CN103037406A (zh) * | 2011-09-29 | 2013-04-10 | 华为技术有限公司 | 同步时间差获取方法、装置和系统 |
WO2013141148A1 (ja) * | 2012-03-19 | 2013-09-26 | 京セラ株式会社 | 移動通信システム、無線基地局及び移動通信方法 |
US9282471B2 (en) | 2012-03-21 | 2016-03-08 | Digimarc Corporation | Positioning systems for wireless networks |
EP2879322A4 (en) * | 2012-07-27 | 2016-04-06 | Nec Corp | COMMUNICATION APPARATUS, TIME SYNCHRONIZATION SYSTEM, AND TIME SYNCHRONIZATION METHOD |
CN104010322B (zh) * | 2013-02-27 | 2018-05-04 | 华为技术有限公司 | 基站间干扰的检测方法、装置及通信系统 |
US9485678B2 (en) * | 2013-03-11 | 2016-11-01 | Qualcomm Incorporated | Effective utilization of cyclic prefix in OFDM systems under benign channel conditions |
CN104349449A (zh) * | 2013-07-24 | 2015-02-11 | 中兴通讯股份有限公司 | 一种全网基站的时钟偏差调整方法及装置 |
WO2015109457A1 (en) * | 2014-01-22 | 2015-07-30 | Empire Technology Development Llc | Adaptively selecting from among multiple base stations |
CN104202812A (zh) * | 2014-08-14 | 2014-12-10 | 杭州绿宇通信技术有限公司 | 一种适用于精确定位系统的高精度时间同步的方法 |
EP3018954A1 (en) * | 2014-11-07 | 2016-05-11 | Nokia Technologies Oy | Indication of in/out of dual connectivity synchronized condition |
US10433268B2 (en) | 2015-02-02 | 2019-10-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Calculating timing offset in wireless communications |
ES2849799T3 (es) * | 2015-05-12 | 2021-08-23 | Deutsche Telekom Ag | Método para la sincronización de red de radio de una red de comunicaciones móviles con una funcionalidad de reloj local que proporciona una referencia de temporización local para cada entidad de estación base, red de comunicaciones móviles, entidad de estación base, programa y producto de programa informático |
US9668209B1 (en) * | 2016-06-29 | 2017-05-30 | Silicon Laboratories Finland Oy | Listening window adjustments for power savings in bluetooth low energy (BLE) communications |
JP6755383B2 (ja) * | 2016-09-30 | 2020-09-16 | 京セラ株式会社 | 強化されたモビリティのための特別アップリンクサブフレーム |
CN106527111B (zh) * | 2016-11-01 | 2018-12-11 | 国网山西省电力公司电力科学研究院 | 一种扩频编码gps信号同步系统 |
US10939400B2 (en) * | 2017-12-19 | 2021-03-02 | Qualcomm Incorporated | Time synchronization techniques for wireless communications |
US11246107B2 (en) * | 2018-11-02 | 2022-02-08 | Qualcomm Incorporated | Throughput modification for time delayed carriers |
US11140651B2 (en) * | 2018-12-31 | 2021-10-05 | The Regents Of The University Of California | Location determination of wireless communications devices |
JP2022104765A (ja) * | 2020-12-29 | 2022-07-11 | 財團法人工業技術研究院 | 信号センシングのためのシステムと方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1424821A2 (en) * | 2002-11-26 | 2004-06-02 | Agere Systems Inc. | Symbol timing for MIMO OFDM and other wireless communication systems |
EP1608198A1 (en) * | 2004-06-15 | 2005-12-21 | Samsung Electronics Co., Ltd. | Apparatus and method for supporting soft handover in broadband wireless access communication system |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ267747A (en) * | 1993-06-14 | 1997-07-27 | Ericsson Telefon Ab L M | Transmission time alignment of code division multiple access system down link |
GB2301751B (en) * | 1995-06-02 | 2000-02-09 | Dsc Communications | Control message transmission in telecommunications systems |
US5940765A (en) * | 1996-08-30 | 1999-08-17 | Telefonaktiebolaget Lm Ericsson | Radio communications systems and methods for jittered beacon transmission |
JP2845228B2 (ja) * | 1996-12-10 | 1999-01-13 | 日本電気株式会社 | 隣接セル同期検出方式 |
US5872774A (en) * | 1997-09-19 | 1999-02-16 | Qualcomm Incorporated | Mobile station assisted timing synchronization in a CDMA communication system |
FI106283B (fi) * | 1998-01-21 | 2000-12-29 | Nokia Mobile Phones Ltd | Solukkoradiosynkronointi |
US6111919A (en) | 1999-01-20 | 2000-08-29 | Intellon Corporation | Synchronization of OFDM signals |
US7039001B2 (en) | 2002-10-29 | 2006-05-02 | Qualcomm, Incorporated | Channel estimation for OFDM communication systems |
JP4212403B2 (ja) * | 2003-04-15 | 2009-01-21 | 株式会社東芝 | 放送信号の送信時刻測定装置及びその測定方法、この送信時刻測定装置を用いた送信装置及び中継装置、及び遅延時間測定装置 |
EP1652207A4 (en) | 2003-06-05 | 2011-12-28 | Meshnetworks Inc | SYSTEM AND METHOD FOR DETERMINING A SYNCHRONIZATION POINT IN OFDM MODEMS FOR EXACT TIME-of-Flight Measurement |
KR100827105B1 (ko) * | 2004-02-13 | 2008-05-02 | 삼성전자주식회사 | 광대역 무선 통신 시스템에서 고속 레인징을 통한 빠른핸드오버 수행 방법 및 장치 |
JP2006246440A (ja) * | 2005-02-03 | 2006-09-14 | Toshiba Corp | 無線通信端末及びハンドオーバ制御方法 |
US8144824B2 (en) * | 2005-03-10 | 2012-03-27 | Qualcomm Incorporated | Trend influenced time tracking |
US7656850B2 (en) | 2005-10-11 | 2010-02-02 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for accelerated super 3G cell search |
-
2007
- 2007-12-21 US US11/962,168 patent/US8102754B2/en active Active
- 2007-12-21 EP EP07861171.2A patent/EP2140646B1/en active Active
- 2007-12-21 CN CN201410058040.1A patent/CN103929392A/zh active Pending
- 2007-12-21 CN CN200780052797.8A patent/CN101669341B/zh active Active
- 2007-12-21 ES ES07861171.2T patent/ES2478011T3/es active Active
- 2007-12-21 RU RU2009144135/08A patent/RU2463746C2/ru active
- 2007-12-21 JP JP2010506125A patent/JP5309133B2/ja active Active
- 2007-12-21 WO PCT/SE2007/051076 patent/WO2008133567A1/en active Application Filing
-
2015
- 2015-01-05 HK HK15100054.6A patent/HK1199681A1/zh unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1424821A2 (en) * | 2002-11-26 | 2004-06-02 | Agere Systems Inc. | Symbol timing for MIMO OFDM and other wireless communication systems |
EP1608198A1 (en) * | 2004-06-15 | 2005-12-21 | Samsung Electronics Co., Ltd. | Apparatus and method for supporting soft handover in broadband wireless access communication system |
Also Published As
Publication number | Publication date |
---|---|
JP5309133B2 (ja) | 2013-10-09 |
RU2463746C2 (ru) | 2012-10-10 |
EP2140646A4 (en) | 2012-07-04 |
US8102754B2 (en) | 2012-01-24 |
ES2478011T3 (es) | 2014-07-18 |
WO2008133567A1 (en) | 2008-11-06 |
EP2140646B1 (en) | 2014-02-12 |
HK1199681A1 (zh) | 2015-11-06 |
CN101669341A (zh) | 2010-03-10 |
US20100265968A1 (en) | 2010-10-21 |
CN103929392A (zh) | 2014-07-16 |
RU2009144135A (ru) | 2011-06-10 |
JP2010526475A (ja) | 2010-07-29 |
EP2140646A1 (en) | 2010-01-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101669341B (zh) | Ofdm系统中的同步时间差测量 | |
US9807718B2 (en) | Secondary cell synchronization for carrier aggregation | |
US11310753B2 (en) | Wireless communication device, network node, method and computer program for achieving synchronization | |
JP5024934B2 (ja) | 無線通信装置 | |
JP5233454B2 (ja) | 移動端末局および受信品質測定方法 | |
TWI427940B (zh) | 在蜂巢式通訊系統中藉由同步通道以取得量測值之方法與裝置 | |
CN102461023B (zh) | 基于同步信号的信号测量 | |
KR20060032379A (ko) | 무선통신시스템에서 셀 인식 및 하향링크 동기를 획득하기위한 장치 및 방법 | |
TW201342839A (zh) | 長期進化分時雙工(lte tdd)的連接模式間隙量測 | |
RU2692481C1 (ru) | Nb-iot приемник, работающий на минимальной частоте дискретизации | |
US20140293954A1 (en) | Method for Determining Cell Identification Information | |
US8989800B2 (en) | Mobile station apparatus and synchronization timing determining method | |
TWI435577B (zh) | 在通訊系統中傳送測距前置碼至基地台的使用者終端及方法 | |
US20100046359A1 (en) | Wireless Terminal, Base Station and Channel Characteristic Estimating Method | |
KR101266720B1 (ko) | 순환 지연 다이버시티 기법이 적용된 uwb-ofdm 시스템에서의 주파수 오차 추정 방법 및 장치 | |
CN111294917B (zh) | 基于pdcch估计定时偏差的方法、装置、存储介质及用户设备 | |
JP5282820B2 (ja) | 無線通信システム、移動局および無線通信方法 | |
KR20150076367A (ko) | 인지 무선 네트워크에서 초기 레인징 수행 방법 및 그 시스템 | |
CN117676794A (zh) | 估计上行定时提前量的方法、网络设备、装置及存储介质 | |
JP2008244860A (ja) | 無線通信システム、基地局および端末 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CLUSTER CO., LTD. Free format text: FORMER OWNER: LM ERICSSON TELEPHONE CO., LTD. Effective date: 20150420 Owner name: OPTIS WIRELESS TECHNOLOGY LLC Free format text: FORMER OWNER: CLUSTER CO., LTD. Effective date: 20150420 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150420 Address after: Texas, USA Patentee after: Telefonaktiebolaget LM Ericsson (publ) Address before: Delaware Patentee before: Clastres LLC Effective date of registration: 20150420 Address after: Delaware Patentee after: Clastres LLC Address before: Stockholm Patentee before: Telefonaktiebolaget LM Ericsson (publ) |