BR9913306A - Sistema e método para solucionar incertezas de frequência e de hora na aquisição de canal de acesso em um sistema de comunicação de espectro espalhado - Google Patents

Sistema e método para solucionar incertezas de frequência e de hora na aquisição de canal de acesso em um sistema de comunicação de espectro espalhado

Info

Publication number
BR9913306A
BR9913306A BR9913306-7A BR9913306A BR9913306A BR 9913306 A BR9913306 A BR 9913306A BR 9913306 A BR9913306 A BR 9913306A BR 9913306 A BR9913306 A BR 9913306A
Authority
BR
Brazil
Prior art keywords
frequency
communication system
acquisition
spread spectrum
spectrum communication
Prior art date
Application number
BR9913306-7A
Other languages
English (en)
Inventor
Ananthanarayanan Chockalingam
Nathan E Tenny
David S Miller
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR9913306A publication Critical patent/BR9913306A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]

Abstract

"SISTEMA E MéTODO PARA SOLUCIONAR INCERTEZAS DE FREQUêNCIA E DE HORA NA AQUISIçãO DE CANAL DE ACESSO EM UM SISTEMA DE COMUNICAçãO DE ESPECTRO ESPALHADO". Um sistema para reduzir o número de hipóteses necessárias de freq³ência e de hora para fazer a aquisição de uma transmissão de acesso em um sistema de comunicação por satélite. Pela redução do número de hipóteses necessárias é reduzida a quantidade de hardware requerido para fazer a aquisição da transmissão de acesso. O método da presente invenção reduz o número de hipóteses requeridas pela redução da gama de possíveis freq³ências e valores de timing da transmissão de acesso. A gama de possíveis freq³ências e valores de timing é reduzida pela determinação das incertezas de freq³ência e de hora em feixes individuais de satélites em lugar de em toda uma área de cobertura do satélite.
BR9913306-7A 1998-08-27 1999-08-27 Sistema e método para solucionar incertezas de frequência e de hora na aquisição de canal de acesso em um sistema de comunicação de espectro espalhado BR9913306A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/140,936 US6381225B1 (en) 1998-08-27 1998-08-27 System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system
PCT/US1999/019810 WO2000013341A1 (en) 1998-08-27 1999-08-27 System and method for resolving frequency and timing uncertainty in access channel acquisition in a spread spectrum communication system

Publications (1)

Publication Number Publication Date
BR9913306A true BR9913306A (pt) 2003-01-28

Family

ID=22493451

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9913306-7A BR9913306A (pt) 1998-08-27 1999-08-27 Sistema e método para solucionar incertezas de frequência e de hora na aquisição de canal de acesso em um sistema de comunicação de espectro espalhado

Country Status (14)

Country Link
US (2) US6381225B1 (pt)
EP (1) EP1105981B1 (pt)
JP (1) JP4514953B2 (pt)
KR (1) KR100767846B1 (pt)
CN (1) CN1137554C (pt)
AT (1) ATE406713T1 (pt)
AU (1) AU759518B2 (pt)
BR (1) BR9913306A (pt)
CA (1) CA2341741A1 (pt)
DE (1) DE69939428D1 (pt)
ES (1) ES2310940T3 (pt)
HK (1) HK1039839B (pt)
RU (1) RU2237361C2 (pt)
WO (1) WO2000013341A1 (pt)

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US7330524B2 (en) * 2004-12-30 2008-02-12 Atheros Communications, Inc. Joint synchronization and impairments estimation using known data patterns
US7970345B2 (en) * 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
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US8346162B1 (en) * 2009-09-25 2013-01-01 Emc Satcom Technologies System and method for reducing VSAT apertures via satellite MIMO
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CN103197328B (zh) * 2013-03-14 2015-05-27 中国人民解放军国防科学技术大学 一种基于2ms数据存储的高动态卫星接收机快速捕获方法
WO2014144920A2 (en) * 2013-03-15 2014-09-18 Maxtena, Inc. Method and apparatus for establishing communications with a satellite
US10200109B2 (en) * 2016-04-29 2019-02-05 The Boeing Company System and method for distributed wireless communications
CN111679123B (zh) * 2020-08-12 2020-12-11 长沙北斗产业安全技术研究院有限公司 适用于多模调制体制的符号边沿与频率估计方法与系统

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Also Published As

Publication number Publication date
ATE406713T1 (de) 2008-09-15
AU5697599A (en) 2000-03-21
JP2002524912A (ja) 2002-08-06
JP4514953B2 (ja) 2010-07-28
CA2341741A1 (en) 2000-03-09
US6381225B1 (en) 2002-04-30
ES2310940T3 (es) 2009-01-16
US7301915B2 (en) 2007-11-27
WO2000013341A1 (en) 2000-03-09
CN1137554C (zh) 2004-02-04
EP1105981A1 (en) 2001-06-13
DE69939428D1 (de) 2008-10-09
KR100767846B1 (ko) 2007-10-17
AU759518B2 (en) 2003-04-17
HK1039839B (zh) 2004-12-10
EP1105981B1 (en) 2008-08-27
US20020154608A1 (en) 2002-10-24
CN1324530A (zh) 2001-11-28
HK1039839A1 (en) 2002-05-10
RU2237361C2 (ru) 2004-09-27
KR20010073047A (ko) 2001-07-31

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

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