UA99333C2 - Оценка отклонения частоты - Google Patents

Оценка отклонения частоты

Info

Publication number
UA99333C2
UA99333C2 UAA201010511A UAA201010511A UA99333C2 UA 99333 C2 UA99333 C2 UA 99333C2 UA A201010511 A UAA201010511 A UA A201010511A UA A201010511 A UAA201010511 A UA A201010511A UA 99333 C2 UA99333 C2 UA 99333C2
Authority
UA
Ukraine
Prior art keywords
frequency error
estimation
frequency
result
pilot
Prior art date
Application number
UAA201010511A
Other languages
English (en)
Ukrainian (uk)
Inventor
Роберто Ріміні
Цзюнь Ма
Original Assignee
Квелкомм Инкорпорейтед
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 Квелкомм Инкорпорейтед filed Critical Квелкомм Инкорпорейтед
Publication of UA99333C2 publication Critical patent/UA99333C2/ru

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
    • H04L27/2657—Carrier synchronisation
    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2671—Time domain
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Transmission System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

Аспекты касаются оценки и отслеживания частоты. Информация о частоте получается на основе наблюдения за одиночным символом, переносящим пилот-сигналы, который может находиться в любом месте ширины полосы. В частности, информация об отклонении частоты получается после выбора пилот-сигнала, предназначенного определенному пользователю, преобразования выбранного пилот-сигнала в пилот-сигнал временной области, сопоставления его с комплексно сопряженным пилот-сигналом, проектирование результата на верхнюю половину и нижнюю половину единичной цепи путем умножения результата на EMBED Equation.3 и EMBED Equation.3 , соответственно, и вычисления разницы квадрата модуля результирующей векторной суммы каждой половины как оценки отклонения частоты. Отклонение частоты может корректироваться на основе этой оценки. Более того, раскрытые аспекты могут применяться к многолучевым средам.
UAA201010511A 2008-02-01 2009-01-30 Оценка отклонения частоты UA99333C2 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2564108P 2008-02-01 2008-02-01

Publications (1)

Publication Number Publication Date
UA99333C2 true UA99333C2 (ru) 2012-08-10

Family

ID=40931631

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201010511A UA99333C2 (ru) 2008-02-01 2009-01-30 Оценка отклонения частоты

Country Status (13)

Country Link
US (1) US8509208B2 (ru)
EP (1) EP2243264A1 (ru)
JP (1) JP2011514721A (ru)
KR (1) KR101126173B1 (ru)
CN (1) CN101933302A (ru)
AU (1) AU2009210457B2 (ru)
CA (1) CA2710873A1 (ru)
IL (1) IL206680A0 (ru)
MX (1) MX2010008281A (ru)
RU (1) RU2444854C1 (ru)
TW (1) TWI413386B (ru)
UA (1) UA99333C2 (ru)
WO (1) WO2009099913A1 (ru)

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US9450727B2 (en) * 2009-02-03 2016-09-20 Google Technology Holdings LLC Physical layer acknowledgement signaling resource allocation in wireless communication systems
US8494070B2 (en) * 2010-05-12 2013-07-23 Qualcomm Incorporated Channel impulse response (CIR)-based and secondary synchronization channel (SSC)-based (frequency tracking loop (FTL)/time tracking loop (TTL)/channel estimation
US8238496B1 (en) * 2010-05-18 2012-08-07 Applied Micro Circuits Corporation Multiuser multiple-input multiple-output (MU-MIMO) channel estimation for multicarrier communications
US9083408B2 (en) * 2010-08-31 2015-07-14 Qualcomm Incorporated Implicit and explicit channel sounding for beamforming
CN103234623B (zh) * 2012-08-20 2014-12-10 苏州大学 一种高精度的频率估计方法
US9071327B2 (en) * 2012-11-27 2015-06-30 Gilat Satellite Networks Ltd. Efficient frequency estimation
US9191255B2 (en) * 2013-03-14 2015-11-17 Spreadtrum Communications Usa Inc. Method and apparatus for compensating for frequency errors between base station and mobile station
US9526074B2 (en) 2013-03-15 2016-12-20 Google Technology Holdings LLC Methods and apparatus for determining a transmit antenna gain and a spatial mode of a device
WO2016138659A1 (zh) * 2015-03-05 2016-09-09 华为技术有限公司 相位偏差计算方法、接入点及站点
JP6686501B2 (ja) * 2016-02-15 2020-04-22 株式会社ジェイテクト 往復運動体の周波数検出装置及び揺動関節装置
US10506662B2 (en) * 2016-05-10 2019-12-10 Qualcomm Incorporated Internet-of-Things design for unlicensed spectrum
US10084563B2 (en) * 2016-11-18 2018-09-25 Qualcomm Incorporated Asymmetric heterogeneous waveform shaping in wireless communications
US10389572B2 (en) * 2017-06-23 2019-08-20 Integrated Device Technology, Inc. Circuits and systems for wideband quadrature signal generation
US11388703B2 (en) * 2018-02-08 2022-07-12 Ntt Docomo, Inc. User terminal and radio communication method
DE102020202890B3 (de) * 2020-03-06 2021-07-08 Continental Automotive Gmbh Verfahren und Kommunikationsvorrichtung zum Kompensieren von Doppler-Effekten in empfangenen drahtlosen Kommunikationssignalen
US11949493B2 (en) * 2021-12-20 2024-04-02 Hughes Network Systems, Llc Mobile terminal and methods of use

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US6891792B1 (en) * 1999-05-14 2005-05-10 At&T Corp. Method for estimating time and frequency offset in an OFDM system
US6922388B1 (en) * 2000-02-11 2005-07-26 Lucent Technologies Inc. Signal construction, detection and estimation for uplink timing synchronization and access control in a multi-access wireless communication system
US20050251844A1 (en) * 2001-02-02 2005-11-10 Massimiliano Martone Blind correlation for high precision ranging of coded OFDM signals
ES2188370B1 (es) 2001-05-21 2004-10-16 Diseño De Sistemas En Silicio, S.A. Procedimiento para la sincronizacion en el enlace descendente de multiples usuarios en un sistema de transmision punto a multipunto con modulacion ofdm.
US7123670B2 (en) * 2001-09-24 2006-10-17 Atheros Communications, Inc. Fine frequency offset estimation and calculation and use to improve communication system performance
US7308063B2 (en) 2002-12-20 2007-12-11 Nokia Corporation Apparatus, and associated method, for effectuating post-FFT correction of fine frequency offset
JP4099191B2 (ja) 2003-06-22 2008-06-11 株式会社エヌ・ティ・ティ・ドコモ チャネル推定装置およびチャネル推定方法
US7606138B2 (en) * 2003-09-29 2009-10-20 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Multi-symbol encapsulated OFDM system
US7746760B2 (en) 2004-01-08 2010-06-29 Qualcomm Incorporated Frequency error estimation and frame synchronization in an OFDM system
US8295266B2 (en) * 2006-10-25 2012-10-23 Lg Electronics Inc. Method for adjusting RACH transmission against frequency offset
CN107370517B (zh) * 2007-08-08 2020-04-28 艾利森电话股份有限公司 采用显式跳频的多载波通信系统

Also Published As

Publication number Publication date
IL206680A0 (en) 2010-12-30
AU2009210457B2 (en) 2013-05-02
WO2009099913A1 (en) 2009-08-13
US8509208B2 (en) 2013-08-13
TW200943856A (en) 2009-10-16
AU2009210457A1 (en) 2009-08-13
RU2444854C1 (ru) 2012-03-10
KR101126173B1 (ko) 2012-03-23
KR20100107071A (ko) 2010-10-04
CN101933302A (zh) 2010-12-29
US20090196274A1 (en) 2009-08-06
EP2243264A1 (en) 2010-10-27
MX2010008281A (es) 2010-08-31
TWI413386B (zh) 2013-10-21
CA2710873A1 (en) 2009-08-13
JP2011514721A (ja) 2011-05-06

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