RU2463746C2 - Измерения разности времени синхронизации в системах ofdm - Google Patents

Измерения разности времени синхронизации в системах ofdm Download PDF

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Publication number
RU2463746C2
RU2463746C2 RU2009144135/08A RU2009144135A RU2463746C2 RU 2463746 C2 RU2463746 C2 RU 2463746C2 RU 2009144135/08 A RU2009144135/08 A RU 2009144135/08A RU 2009144135 A RU2009144135 A RU 2009144135A RU 2463746 C2 RU2463746 C2 RU 2463746C2
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Russia
Prior art keywords
base station
mobile terminal
time
time difference
ofdm
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RU2009144135/08A
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English (en)
Russian (ru)
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RU2009144135A (ru
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Роберт БАЛЬДЕМАИР (SE)
Роберт БАЛЬДЕМАИР
Мухаммад КАЗМИ (SE)
Мухаммад КАЗМИ
Бенгт ЛИНДОФФ (SE)
Бенгт ЛИНДОФФ
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Телефонактиеболагет Лм Эрикссон (Пабл)
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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
    • H04L27/2662—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, e.g. multi-user orthogonal frequency division multiple access [OFDMA]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
RU2009144135/08A 2007-04-30 2007-12-21 Измерения разности времени синхронизации в системах ofdm RU2463746C2 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0701043 2007-04-30
SE0701043-2 2007-04-30

Publications (2)

Publication Number Publication Date
RU2009144135A RU2009144135A (ru) 2011-06-10
RU2463746C2 true RU2463746C2 (ru) 2012-10-10

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US (1) US8102754B2 (enExample)
EP (1) EP2140646B1 (enExample)
JP (1) JP5309133B2 (enExample)
CN (2) CN103929392A (enExample)
ES (1) ES2478011T3 (enExample)
HK (1) HK1199681A1 (enExample)
RU (1) RU2463746C2 (enExample)
WO (1) WO2008133567A1 (enExample)

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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
US10165532B2 (en) 2012-03-19 2018-12-25 Kyocera Corporation Mobile communication system, radio base station, and mobile communication method
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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
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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
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US5828659A (en) * 1993-06-14 1998-10-27 Telefonaktiebolaget Lm Ericsson Time alignment of transmission in a down-link of CDMA system
RU2142672C1 (ru) * 1995-06-02 1999-12-10 Аирспан Коммьюникейшенс Корпорейшн, Корпорейшн Траст Компани Устройство и способ регулирования мощности и скорости передачи в беспроводных системах связи
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Also Published As

Publication number Publication date
EP2140646B1 (en) 2014-02-12
CN101669341B (zh) 2014-03-12
US8102754B2 (en) 2012-01-24
HK1199681A1 (en) 2015-11-06
RU2009144135A (ru) 2011-06-10
EP2140646A4 (en) 2012-07-04
CN103929392A (zh) 2014-07-16
JP5309133B2 (ja) 2013-10-09
ES2478011T3 (es) 2014-07-18
WO2008133567A1 (en) 2008-11-06
JP2010526475A (ja) 2010-07-29
EP2140646A1 (en) 2010-01-06
CN101669341A (zh) 2010-03-10
US20100265968A1 (en) 2010-10-21

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