JP4316134B2 - 多重チャンネル通信システムのスペクトラム拡散多重経路復調器 - Google Patents

多重チャンネル通信システムのスペクトラム拡散多重経路復調器 Download PDF

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Publication number
JP4316134B2
JP4316134B2 JP2000524873A JP2000524873A JP4316134B2 JP 4316134 B2 JP4316134 B2 JP 4316134B2 JP 2000524873 A JP2000524873 A JP 2000524873A JP 2000524873 A JP2000524873 A JP 2000524873A JP 4316134 B2 JP4316134 B2 JP 4316134B2
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digital samples
demodulator
code
searcher
time
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JP2000524873A
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JP2001526489A (ja
JP2001526489A5 (enExample
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レビン、ジェフリー・エー
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Qualcomm Inc
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Qualcomm Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70753—Partial phase search
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/708—Parallel implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7113—Determination of path profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/70735—Code identification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70756—Jumping within the code, i.e. masking or slewing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • H04B2001/70935—Matched filter type using a bank of matched fileters, e.g. Fast Hadamard Transform

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP2000524873A 1997-12-09 1998-12-08 多重チャンネル通信システムのスペクトラム拡散多重経路復調器 Expired - Lifetime JP4316134B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/987,172 US6639906B1 (en) 1997-12-09 1997-12-09 Multichannel demodulator
US08/987,172 1997-12-09
PCT/US1998/026050 WO1999030433A1 (en) 1997-12-09 1998-12-08 Spread spectrum multipath demodulator for a multichanel communication system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2009091657A Division JP4477691B2 (ja) 1997-12-09 2009-04-06 多重チャンネル通信システムのスペクトラム拡散多重経路復調器

Publications (3)

Publication Number Publication Date
JP2001526489A JP2001526489A (ja) 2001-12-18
JP2001526489A5 JP2001526489A5 (enExample) 2006-02-02
JP4316134B2 true JP4316134B2 (ja) 2009-08-19

Family

ID=25533076

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2000524873A Expired - Lifetime JP4316134B2 (ja) 1997-12-09 1998-12-08 多重チャンネル通信システムのスペクトラム拡散多重経路復調器
JP2009091657A Expired - Lifetime JP4477691B2 (ja) 1997-12-09 2009-04-06 多重チャンネル通信システムのスペクトラム拡散多重経路復調器

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Application Number Title Priority Date Filing Date
JP2009091657A Expired - Lifetime JP4477691B2 (ja) 1997-12-09 2009-04-06 多重チャンネル通信システムのスペクトラム拡散多重経路復調器

Country Status (13)

Country Link
US (1) US6639906B1 (enExample)
EP (2) EP2204917A3 (enExample)
JP (2) JP4316134B2 (enExample)
KR (1) KR100582217B1 (enExample)
CN (1) CN1284218A (enExample)
AR (1) AR017828A1 (enExample)
AU (1) AU1808799A (enExample)
BR (1) BRPI9813494B1 (enExample)
CA (1) CA2313453A1 (enExample)
FI (1) FI20001304L (enExample)
MY (1) MY122091A (enExample)
WO (1) WO1999030433A1 (enExample)
ZA (1) ZA9811126B (enExample)

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US6144649A (en) 1997-02-27 2000-11-07 Motorola, Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver
US6408003B1 (en) * 1997-06-17 2002-06-18 Qualcomm Incorporated Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames
US6396819B1 (en) 1998-03-21 2002-05-28 Richard D. Fleeter Low-cost satellite communication system
US7593408B2 (en) * 1998-05-20 2009-09-22 Qualcomm Incorporated Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames
JP3795756B2 (ja) * 1998-10-27 2006-07-12 シーメンス アクチエンゲゼルシヤフト 移動局及び／又は固定送信局／受信局間でワイヤレス電気通信を行う電気通信システム、”アーリー／レートトラッキング”を有する”ｒａｋｅ”−受信機でのメモリアクセスの制御方法
US6314130B1 (en) * 1999-04-28 2001-11-06 Dspc Technologies, Ltd. System and method for joint time tracking of multiple paths
US7085246B1 (en) 1999-05-19 2006-08-01 Motorola, Inc. Method and apparatus for acquisition of a spread-spectrum signal
US7031271B1 (en) 1999-05-19 2006-04-18 Motorola, Inc. Method of and apparatus for activating a spread-spectrum radiotelephone
GB2351864B (en) 1999-07-05 2004-05-26 Symmetricom Inc A receiver for receiving rf pseudo-random encoded signals
US6529487B1 (en) * 1999-07-09 2003-03-04 Qualcomm Incorporated Method and apparatus for securely transmitting distributed RAND for use in mobile station authentication
JP3399420B2 (ja) 1999-11-01 2003-04-21 日本電気株式会社 固定パターン検出装置
US7227884B2 (en) 2000-02-28 2007-06-05 Aeroastro, Inc. Spread-spectrum receiver with progressive fourier transform
US7433391B2 (en) * 2000-02-28 2008-10-07 Aeroastro, Inc. Spread-spectrum receiver with fast M-sequence transform
DE10013798C1 (de) * 2000-03-20 2001-09-20 Siemens Ag Verfahren zur Überwachung der Übertragungsqualität in einem zellularen Funk-Kommunikationssystem
US7224719B1 (en) 2000-03-31 2007-05-29 Qualcomm, Incorporated Fast acquisition of a pilot signal in a wireless communication device
ES2420487T3 (es) * 2000-07-31 2013-08-23 Intel Mobile Communications GmbH Aparato y métodos para selección por muestreo y reutilización de dedos de rastrillo en sistemas de espectro ensanchado o difundido
KR100355270B1 (ko) * 2000-10-11 2002-10-11 한국전자통신연구원 시분할 방법을 이용하는 핑거와, 이를 구비한 레이크 수신기
US7590164B2 (en) * 2001-01-19 2009-09-15 Qualcomm Incorporated Method and apparatus for efficient use of communication resources in a communication system
KR20020084464A (ko) * 2001-05-02 2002-11-09 엘지전자 주식회사 Ｃｄｍａ 복조 시스템
ATE445986T1 (de) * 2001-05-14 2009-10-15 Ericsson Ab Verfahren und system zur reservierung von zeitschlitzen in einem tdma system
US7649860B2 (en) * 2002-01-31 2010-01-19 Qualcomm Incorporated Buffer-based GPS and CDMA pilot searcher
US6785322B1 (en) 2002-04-12 2004-08-31 Interdigital Technology Corporation Node-B/base station rake finger pooling
TWI259011B (en) 2002-04-12 2006-07-21 Interdigital Tech Corp Access burst detector correlator pool
AU2003242923A1 (en) * 2002-06-28 2004-01-19 Koninklijke Philips Electronics N.V. Method and arrangement for the generation of an identification data block
US7016697B2 (en) * 2002-10-29 2006-03-21 Qualcomm Incorporated Controlling multiple modems in a wireless terminal using dynamically varying modem transmit power limits
JP4297780B2 (ja) 2003-12-22 2009-07-15 株式会社ルネサステクノロジ 受信装置
US20050169353A1 (en) * 2004-02-02 2005-08-04 Wei An Post despreading interpolation in CDMA systems
FI20050977A0 (fi) * 2005-09-29 2005-09-29 Nokia Corp Synkronointimenetelmä, vastaanotin, verkkoelementti, viestintäväline, elektroninen väline, tietokoneohjelmatuote ja tietokoneohjelmien jakeluväline
WO2007136415A2 (en) 2005-12-30 2007-11-29 Comtech Mobile Datacom Corporation Mobile satellite communications
CN101496330B (zh) * 2006-07-24 2013-11-06 高通股份有限公司 用于沃尔什编码的编码交织
US8295250B2 (en) * 2006-07-24 2012-10-23 Qualcomm Incorporated Code interleaving for a structured code
US8275080B2 (en) 2006-11-17 2012-09-25 Comtech Mobile Datacom Corporation Self-supporting simplex packets
US8284749B2 (en) * 2008-03-10 2012-10-09 Comtech Mobile Datacom Corporation Time slot synchronized, flexible bandwidth communication system
US9106364B1 (en) 2009-01-26 2015-08-11 Comtech Mobile Datacom Corporation Signal processing of a high capacity waveform
US8548107B1 (en) 2009-01-26 2013-10-01 Comtech Mobile Datacom Corporation Advanced multi-user detector
US8675711B1 (en) 2009-09-25 2014-03-18 Comtech Mobile Datacom Corporation System and methods for dynamic spread spectrum usage
US9042429B2 (en) * 2013-06-27 2015-05-26 Intel Mobile Communications GmbH Interference cancellation radio receiver

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Also Published As

Publication number Publication date
FI20001304A7 (fi) 2000-08-09
EP2204917A2 (en) 2010-07-07
CA2313453A1 (en) 1999-06-17
JP2009219125A (ja) 2009-09-24
AU1808799A (en) 1999-06-28
BR9813494A (pt) 2000-11-14
FI20001304L (fi) 2000-08-09
CN1284218A (zh) 2001-02-14
WO1999030433A1 (en) 1999-06-17
US6639906B1 (en) 2003-10-28
AR017828A1 (es) 2001-10-24
ZA9811126B (en) 2000-10-10
EP2204917A3 (en) 2013-02-27
KR20010032961A (ko) 2001-04-25
JP2001526489A (ja) 2001-12-18
MY122091A (en) 2006-03-31
EP1040594A1 (en) 2000-10-04
JP4477691B2 (ja) 2010-06-09
KR100582217B1 (ko) 2006-05-24
BRPI9813494B1 (pt) 2015-08-25

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