BR0210021A - Método para estimar o espalhamento doppler em um dispositivo de comunicação sem fio móvel, e respectivo dispositivo - Google Patents

Método para estimar o espalhamento doppler em um dispositivo de comunicação sem fio móvel, e respectivo dispositivo

Info

Publication number
BR0210021A
BR0210021A BR0210021-5A BR0210021A BR0210021A BR 0210021 A BR0210021 A BR 0210021A BR 0210021 A BR0210021 A BR 0210021A BR 0210021 A BR0210021 A BR 0210021A
Authority
BR
Brazil
Prior art keywords
wireless communication
mobile wireless
lag
doppler spread
communication device
Prior art date
Application number
BR0210021-5A
Other languages
English (en)
Inventor
Alexandre Mallette
John Paul Oliver
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR0210021A publication Critical patent/BR0210021A/pt

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

"MéTODO PARA ESTIMAR O ESPALHAMENTO DOPPLER EM UM DISPOSITIVO DE COMUNICAçãO SEM FIO MóVEL, E RESPECTIVO DISPOSITIVO". Um método para estimar o espalhamento de Doppler em dispositivos de comunicação sem fio móvel, por exemplo, em sistemas de comunicação celular CDMA ou W-CDMA, com imunidade de ruído aprimorada. A estimativa de espalhamento de Doppler tem por base o valor estimado de uma autocorrelação ou autocovariação em um primeiro retardamento (210) e em um segundo retardamento (220), a magnitude da qual é maior que o primeiro retardamento. Uma primeira proporção é determinada (250) entre uma primeira diferença (230) e uma segunda diferença (240). O espalhamento de Doppler estimado é geralmente proporcional a uma raiz quadrada (260) da primeira proporção, e é escalada (270) por um fator multiplicativo que depende de se a função estimada é uma função de autocorrelação ou de autocovariação.
BR0210021-5A 2001-05-31 2002-04-18 Método para estimar o espalhamento doppler em um dispositivo de comunicação sem fio móvel, e respectivo dispositivo BR0210021A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/871,116 US6636574B2 (en) 2001-05-31 2001-05-31 Doppler spread/velocity estimation in mobile wireless communication devices and methods therefor
PCT/US2002/012248 WO2002100060A1 (en) 2001-05-31 2002-04-18 Doppler spread/velocity estimation in mobile wireless communication devices and methods therefor

Publications (1)

Publication Number Publication Date
BR0210021A true BR0210021A (pt) 2004-08-10

Family

ID=25356765

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0210021-5A BR0210021A (pt) 2001-05-31 2002-04-18 Método para estimar o espalhamento doppler em um dispositivo de comunicação sem fio móvel, e respectivo dispositivo

Country Status (9)

Country Link
US (1) US6636574B2 (pt)
EP (1) EP1397897B1 (pt)
CN (1) CN1529970B (pt)
AT (1) ATE313198T1 (pt)
BR (1) BR0210021A (pt)
DE (1) DE60208026T2 (pt)
RU (1) RU2269206C2 (pt)
TW (1) TW586325B (pt)
WO (1) WO2002100060A1 (pt)

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KR100608109B1 (ko) * 2004-06-28 2006-08-02 삼성전자주식회사 이동통신 시스템에서 도플러 주파수 및 단말기의 이동속도 계산 장치 및 방법
DE602004027557D1 (de) * 2004-12-15 2010-07-15 Ericsson Telefon Ab L M Doppler-schätzung
US7573964B2 (en) * 2004-12-16 2009-08-11 Motorola, Inc. Channel estimator with extended channel bandwidth
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KR101488787B1 (ko) * 2008-07-08 2015-02-03 삼성전자주식회사 이동통신 단말기에서 도플러 주파수 추정 방법 및 장치
US8897385B2 (en) * 2009-10-20 2014-11-25 Maxlinear, Inc. Doppler estimator for OFDM systems
CN101808070A (zh) * 2010-04-13 2010-08-18 北京大学 一种ofdm系统接收机及其移动速度估计方法
CN101917363B (zh) * 2010-08-10 2013-04-24 上海华为技术有限公司 一种多普勒频移的估算方法、装置
CN103181094B (zh) * 2010-11-04 2016-05-04 瑞典爱立信有限公司 无线电基站以及其中用于估计多普勒扩展的方法
RU2565237C1 (ru) * 2014-08-07 2015-10-20 Федеральное государственное бюджетное учреждение науки Тихоокеанский океанологический институт им. В.И. Ильичева Дальневосточного отделения Российской академии наук (ТОИ ДВО РАН) Способ оценки доплеровского смещения несущей частоты сложного сигнала
RU2614192C1 (ru) * 2015-12-02 2017-03-23 Акционерное общество "Раменское приборостроительное конструкторское бюро" Способ оценивания ошибок инерциальной информации и её коррекции по измерениям доплеровского измерителя скорости
US10845477B2 (en) 2017-05-10 2020-11-24 Google Llc Power management using a low-power radar
US10795009B2 (en) 2017-05-31 2020-10-06 Google Llc Digital beamforming for radar sensing using wireless communication chipset
US10782390B2 (en) 2017-05-31 2020-09-22 Google Llc Full-duplex operation for radar sensing using wireless communication chipset
US10754005B2 (en) 2017-05-31 2020-08-25 Google Llc Radar modulation for radar sensing using a wireless communication chipset
BR112021019115A2 (pt) 2019-05-20 2021-11-30 Google Llc Sistema de radar baseado em dispositivo móvel para fornecer uma interface multimodo e método para o mesmo
KR20210132132A (ko) 2019-06-17 2021-11-03 구글 엘엘씨 멀티 모드 인터페이스에 상이한 전력 모드를 적용하기 위한 모바일 디바이스 기반 레이더 시스템

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Also Published As

Publication number Publication date
CN1529970B (zh) 2012-11-28
EP1397897B1 (en) 2005-12-14
WO2002100060A1 (en) 2002-12-12
US6636574B2 (en) 2003-10-21
RU2003134627A (ru) 2005-05-27
US20020181553A1 (en) 2002-12-05
TW586325B (en) 2004-05-01
DE60208026T2 (de) 2006-07-13
CN1529970A (zh) 2004-09-15
ATE313198T1 (de) 2005-12-15
EP1397897A4 (en) 2005-02-02
RU2269206C2 (ru) 2006-01-27
DE60208026D1 (de) 2006-01-19
EP1397897A1 (en) 2004-03-17

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDO O PEDIDO DE ALTERACAO DE NOME CONTIDO NA PETICAO 20130041082 DE 15/05/2013, DEVIDO A AUSENCIA DE GUIA DE RECOLHIMENTO RELATIVA AO SERVICO.

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM ART. 8O COMBINADO COM ART. 13 E ART. 10 DA LPI

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)