KR100767846B1 - 스펙트럼 확산 통신 시스템에서 액세스 전송시 주파수 및 시간 불확실성을 결정하는 시스템 및 방법 - Google Patents

스펙트럼 확산 통신 시스템에서 액세스 전송시 주파수 및 시간 불확실성을 결정하는 시스템 및 방법 Download PDF

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Publication number
KR100767846B1
KR100767846B1 KR1020017002549A KR20017002549A KR100767846B1 KR 100767846 B1 KR100767846 B1 KR 100767846B1 KR 1020017002549 A KR1020017002549 A KR 1020017002549A KR 20017002549 A KR20017002549 A KR 20017002549A KR 100767846 B1 KR100767846 B1 KR 100767846B1
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South Korea
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signal
frequency
time
search space
satellite
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KR1020017002549A
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Korean (ko)
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KR20010073047A (ko
Inventor
애난쓰안나라야난 쵸크칼링암
나단 이. 테니
데이비드 에스. 밀러
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콸콤 인코포레이티드
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    • 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]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Circuits Of Receivers In General (AREA)
KR1020017002549A 1998-08-27 1999-08-27 스펙트럼 확산 통신 시스템에서 액세스 전송시 주파수 및 시간 불확실성을 결정하는 시스템 및 방법 Expired - Fee Related KR100767846B1 (ko)

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
US09/140,936 1998-08-27

Publications (2)

Publication Number Publication Date
KR20010073047A KR20010073047A (ko) 2001-07-31
KR100767846B1 true KR100767846B1 (ko) 2007-10-17

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KR1020017002549A Expired - Fee Related KR100767846B1 (ko) 1998-08-27 1999-08-27 스펙트럼 확산 통신 시스템에서 액세스 전송시 주파수 및 시간 불확실성을 결정하는 시스템 및 방법

Country Status (14)

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

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US6381225B1 (en) * 1998-08-27 2002-04-30 Qualcomm Incorporated System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system
US6813257B1 (en) * 2000-06-26 2004-11-02 Motorola, Inc. Apparatus and methods for controlling short code timing offsets in a CDMA system
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
EP1838008A1 (en) * 2006-03-23 2007-09-26 Sony Deutschland Gmbh Preamble for synchronization
US8346162B1 (en) * 2009-09-25 2013-01-01 Emc Satcom Technologies System and method for reducing VSAT apertures via satellite MIMO
US9094906B2 (en) * 2011-11-11 2015-07-28 Telefonaktiebolaget Lm Ericsson (Publ) Multi-stage timing and frequency synchronization
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
US20140313073A1 (en) * 2013-03-15 2014-10-23 Carlo Dinallo 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
MX2021005275A (es) 2018-11-06 2021-06-23 Ericsson Telefon Ab L M Identificacion de region espectral para simbolo de referencia.
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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US5666122A (en) * 1994-07-11 1997-09-09 Qualcomm Incorporated Method for rapid signal acquisition in a satellite communications system

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US4653076A (en) 1984-03-23 1987-03-24 Sangamo Weston, Inc. Timing signal correction system for use in direct sequence spread signal receiver
US4675678A (en) * 1984-07-03 1987-06-23 Textron Inc. Frequency agile radar system
US4621365A (en) 1984-11-16 1986-11-04 Hughes Aircraft Company Synchronization preamble correlation detector and frequency estimator
EP0337269B1 (de) 1988-04-14 1994-03-30 ANT Nachrichtentechnik GmbH Verfahren und Anordnung zum Reduzieren von Frequenzablagen beim Mobilfunk über Satellit
US5095538A (en) 1989-09-29 1992-03-10 Motorola, Inc. Calibrated method and device for narrow band Doppler compensation
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JPH04207530A (ja) * 1990-11-30 1992-07-29 Toshiba Corp 衛星通信システムおよび周波数追尾ループ
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JP2953260B2 (ja) 1993-07-05 1999-09-27 ケイディディ株式会社 周波数オフセット補償方法
US5490165A (en) 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
DE69535838D1 (de) * 1994-02-09 2008-10-23 Nippon Telegraph & Telephone Verfahren und Gerät für CDMA mobile Kommunikationen
JPH07321721A (ja) * 1994-05-23 1995-12-08 Tasada Kosakusho:Kk 単一波マルチポイント衛星通信方法
US5742908A (en) * 1994-09-14 1998-04-21 Ericsson Inc. Frequency error correction in a satellite-mobile communications system
JP3012776B2 (ja) * 1995-01-05 2000-02-28 エヌ・ティ・ティ移動通信網株式会社 衛星通信方式
JPH08256085A (ja) 1995-03-17 1996-10-01 Sony Corp スペクトラム拡散通信システム及びその送信機と受信機
US5805648A (en) 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
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US5640166A (en) * 1996-09-03 1997-06-17 Motorola, Inc. Method for compensating for doppler frequency shifts for satellite communication systems
ZA978516B (en) * 1996-09-30 1998-06-10 Qualcomm Inc Method and apparatus for precorrecting timing and frequency in communication systems.
US5844521A (en) * 1996-12-02 1998-12-01 Trw Inc. Geolocation method and apparatus for satellite based telecommunications system
US6163533A (en) 1997-04-30 2000-12-19 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
US6317583B1 (en) * 1997-07-25 2001-11-13 Trw Inc. Telecommunications satellite channelizer
US6167056A (en) * 1997-11-10 2000-12-26 Qualcomm Incorporated Access channel slot sharing
US6381225B1 (en) * 1998-08-27 2002-04-30 Qualcomm Incorporated System and method for resolving frequency and timing uncertainty in access transmissions in a spread spectrum communication system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666122A (en) * 1994-07-11 1997-09-09 Qualcomm Incorporated Method for rapid signal acquisition in a satellite communications system
WO1997020402A1 (en) * 1995-11-30 1997-06-05 Qualcomm Incorporated Signal acquisition via repeated access probe transmission

Also Published As

Publication number Publication date
HK1039839A1 (en) 2002-05-10
JP2002524912A (ja) 2002-08-06
HK1039839B (zh) 2004-12-10
AU5697599A (en) 2000-03-21
ATE406713T1 (de) 2008-09-15
ES2310940T3 (es) 2009-01-16
BR9913306A (pt) 2003-01-28
US20020154608A1 (en) 2002-10-24
EP1105981A1 (en) 2001-06-13
CN1137554C (zh) 2004-02-04
US6381225B1 (en) 2002-04-30
EP1105981B1 (en) 2008-08-27
DE69939428D1 (de) 2008-10-09
KR20010073047A (ko) 2001-07-31
AU759518B2 (en) 2003-04-17
JP4514953B2 (ja) 2010-07-28
CN1324530A (zh) 2001-11-28
CA2341741A1 (en) 2000-03-09
WO2000013341A1 (en) 2000-03-09
US7301915B2 (en) 2007-11-27
RU2237361C2 (ru) 2004-09-27

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