ATE450084T1 - Mehrlagige pn-kodespreizung in einem mehrbenutzerkommunikationssystem - Google Patents

Mehrlagige pn-kodespreizung in einem mehrbenutzerkommunikationssystem

Info

Publication number
ATE450084T1
ATE450084T1 AT98956104T AT98956104T ATE450084T1 AT E450084 T1 ATE450084 T1 AT E450084T1 AT 98956104 T AT98956104 T AT 98956104T AT 98956104 T AT98956104 T AT 98956104T AT E450084 T1 ATE450084 T1 AT E450084T1
Authority
AT
Austria
Prior art keywords
code
spreading
communication system
period
information signals
Prior art date
Application number
AT98956104T
Other languages
English (en)
Inventor
Brian Harms
Brian Butler
Gordon Di Skinner
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
Application granted granted Critical
Publication of ATE450084T1 publication Critical patent/ATE450084T1/de

Links

Classifications

    • 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
    • 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
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/58—Random or pseudo-random number generators
    • G06F7/582—Pseudo-random number generators
    • G06F7/584—Pseudo-random number generators using finite field arithmetic, e.g. using a linear feedback shift register
    • 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
    • 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]
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70716—Quadrature
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • General Engineering & Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Communication Control (AREA)
AT98956104T 1997-10-10 1998-10-09 Mehrlagige pn-kodespreizung in einem mehrbenutzerkommunikationssystem ATE450084T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6169897P 1997-10-10 1997-10-10
PCT/US1998/021466 WO1999019992A1 (en) 1997-10-10 1998-10-09 Multi-layered pn code spreading in a multi-user communications system

Publications (1)

Publication Number Publication Date
ATE450084T1 true ATE450084T1 (de) 2009-12-15

Family

ID=22037524

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98956104T ATE450084T1 (de) 1997-10-10 1998-10-09 Mehrlagige pn-kodespreizung in einem mehrbenutzerkommunikationssystem

Country Status (13)

Country Link
US (1) US6493376B1 (de)
EP (1) EP1029398B1 (de)
JP (1) JP4386574B2 (de)
KR (1) KR100693682B1 (de)
CN (2) CN100459444C (de)
AT (1) ATE450084T1 (de)
AU (1) AU754257B2 (de)
BR (1) BR9813026A (de)
CA (1) CA2305718C (de)
DE (1) DE69841326D1 (de)
NO (1) NO318825B1 (de)
RU (1) RU2221337C2 (de)
WO (1) WO1999019992A1 (de)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068617B1 (en) * 1998-06-25 2006-06-27 Texas Instruments Incorporated Low complexity CDMA receiver
JP3695732B2 (ja) * 1998-09-02 2005-09-14 富士通株式会社 Ｃｄｍａ受信装置のサーチ装置
US6765953B1 (en) * 1998-09-09 2004-07-20 Qualcomm Incorporated User terminal parallel searcher
US6175559B1 (en) * 1999-07-07 2001-01-16 Motorola, Inc. Method for generating preamble sequences in a code division multiple access system
EP1085689B1 (de) * 1999-09-13 2003-05-21 Mitsubishi Electric Information Technology Centre Europe B.V. Zuweisung von Spreizfolgen in einem MCCDMA-System
US6882631B1 (en) * 1999-09-13 2005-04-19 Qualcomm Incorporated Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth
US6704322B1 (en) * 1999-11-17 2004-03-09 National Science Council Smart different prime code multiplexing system
US6324210B1 (en) * 1999-12-17 2001-11-27 Golden Bridge Technology Incorporated Sliding matched filter with flexible hardware complexity
AU2001220988B2 (en) * 2000-03-23 2004-04-29 Interdigital Technology Corporation Efficient spreader for spread spectrum communication systems
JP3805205B2 (ja) * 2000-04-06 2006-08-02 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａセルラ方式における通信品質測定方法およびその装置
EP1273111B9 (de) 2000-04-07 2007-06-27 Interdigital Technology Corporation Verfahren zur synchronisierung einer basisstation für drahtlose kommunikationssysteme
US7426386B1 (en) * 2000-06-21 2008-09-16 Northrop Grumman Corporation Beam laydown for hopped satellite downlink with adaptable duty cycle
US8537656B2 (en) 2000-07-19 2013-09-17 Ipr Licensing, Inc. Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure
US7911993B2 (en) 2000-07-19 2011-03-22 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
US7180873B1 (en) * 2000-10-06 2007-02-20 Globalstar, Inc. Spread spectrum code division destination access (SS-CDDA) for satellite communication system with distributed gateways
EP1199828A3 (de) * 2000-10-20 2003-01-22 TRW Inc. Hoch effiziente Signalisation mit selektiver Kodierung und Verschachtelung
US6826244B2 (en) 2001-02-27 2004-11-30 Interdigital Technology Corporation Initial cell search algorithm for 3G FDD wireless communication systems
JP2004529555A (ja) * 2001-03-30 2004-09-24 松下電器産業株式会社 合成選択時間切り替え送信ダイバーシチ（ｓｔｓｔｄ）方法およびシステム
US6917581B2 (en) * 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link
US20030067961A1 (en) * 2001-10-04 2003-04-10 Hudson John E. Wireless spread spectrum communications system, communications apparatus and method therefor
US7321576B2 (en) 2001-11-15 2008-01-22 Nokia Corporation Method for compact representation of multi-code signaling in communication systems
US7813311B2 (en) 2002-02-05 2010-10-12 Interdigital Technology Corporation Method and apparatus for synchronizing base stations
JP3860762B2 (ja) 2002-02-14 2006-12-20 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム、チャネル同期確立方法、及び移動局
US6823033B2 (en) * 2002-03-12 2004-11-23 Qualcomm Inc. ΣΔdelta modulator controlled phase locked loop with a noise shaped dither
US7197276B2 (en) * 2002-03-15 2007-03-27 Broadcom Corporation Downstream adaptive modulation in broadband communications systems
US7995926B2 (en) * 2003-02-21 2011-08-09 Northrop Grumman Systems Corporation Scanned acquisition using pre-track data
US7738536B2 (en) * 2003-04-15 2010-06-15 Novatel Inc. Apparatus for and method of making pulse-shape measurements
US7092426B2 (en) 2003-09-24 2006-08-15 S5 Wireless, Inc. Matched filter for scalable spread spectrum communications systems
US7006840B2 (en) * 2003-09-30 2006-02-28 Interdigital Technology Corporation Efficient frame tracking in mobile receivers
US7447254B1 (en) * 2004-03-25 2008-11-04 Cypress Semiconductor Corp. Self-correlating pseudo-noise pairing
US7310064B2 (en) * 2004-04-29 2007-12-18 Novariant Inc. Rebroadcasting method and system for navigation signals
US7522653B2 (en) * 2005-01-27 2009-04-21 L-3 Communications, Corp. System and method for PN correlation and symbol synchronization
ES2374205T3 (es) * 2005-03-21 2012-02-14 Telefonaktiebolaget Lm Ericsson (Publ) Determinación de una señal de detección en un sistema de comunicaciones de amplio espectro.
US7738606B2 (en) * 2005-03-24 2010-06-15 Novatel Inc. System and method for making correlation measurements utilizing pulse shape measurements
US7492810B2 (en) * 2005-04-04 2009-02-17 General Electric Company Method and apparatus for segmented code correlation
BRPI0520410B1 (pt) * 2005-07-01 2018-12-11 Esa método para criar um conjunto de códigos de espalhamento secundários para uso em um sistema de navegação por satélite, receptor, dispositivo de memória removível para uso em um receptor, aparelho, sinal de satélite, e, métodos de operação de um receptor e de um servidor que se comunica com receptores para uso em conjunto com um sistema de navegação por satélite
US7738537B2 (en) * 2005-09-14 2010-06-15 Novatel Inc. Apparatus for and method of determining quadrature code timing from pulse-shape measurements made using an in-phase code
US7668228B2 (en) 2005-09-16 2010-02-23 Novatel Inc. Apparatus for and method of correlating to rising chip edges
US7796694B1 (en) 2005-11-04 2010-09-14 Cypress Semiconductor Corporation Circuit and method or encoding DSSS signals
US7756194B1 (en) 2005-11-04 2010-07-13 Cypress Semiconductor Corporation Circuit and method for decoding code phase modulated signals
US7792225B2 (en) * 2005-11-30 2010-09-07 Qualcomm Incorporated Method and device for reducing cross-correlation false alarms in CDMA and other wireless networks
US7688878B2 (en) * 2006-03-16 2010-03-30 The Boeing Company Method and device of peak detection in preamble synchronization for direct sequence spread spectrum communication
EP1838009B1 (de) * 2006-03-24 2008-10-08 Via Technologies, Inc. Spreizspektrumempfänger und zugehörige Kanalkompensationsverfahren
US7991040B2 (en) * 2006-04-04 2011-08-02 Qualcomm Incorporated Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal
US7991083B2 (en) * 2006-06-22 2011-08-02 Cisco Technology, Inc. Method and system for detecting preambles in a multi-cell system
EP2074711A2 (de) * 2006-10-06 2009-07-01 ViaSat, Inc. Vorwärts- und rückwärtskalibration für bodengestützte strahlformung
CN101247141B (zh) * 2007-12-05 2011-07-06 电子科技大学 一种跳频信号时差估计方法
US7782926B2 (en) 2008-03-18 2010-08-24 On-Ramp Wireless, Inc. Random phase multiple access communication interface system and method
US8520721B2 (en) 2008-03-18 2013-08-27 On-Ramp Wireless, Inc. RSSI measurement mechanism in the presence of pulsed jammers
US20090239550A1 (en) 2008-03-18 2009-09-24 Myers Theodore J Random phase multiple access system with location tracking
US20100195553A1 (en) 2008-03-18 2010-08-05 Myers Theodore J Controlling power in a spread spectrum system
US7733945B2 (en) 2008-03-18 2010-06-08 On-Ramp Wireless, Inc. Spread spectrum with doppler optimization
US7773664B2 (en) 2008-03-18 2010-08-10 On-Ramp Wireless, Inc. Random phase multiple access system with meshing
US8477830B2 (en) 2008-03-18 2013-07-02 On-Ramp Wireless, Inc. Light monitoring system using a random phase multiple access system
US8958460B2 (en) 2008-03-18 2015-02-17 On-Ramp Wireless, Inc. Forward error correction media access control system
US8363699B2 (en) 2009-03-20 2013-01-29 On-Ramp Wireless, Inc. Random timing offset determination
US8699636B2 (en) * 2009-08-07 2014-04-15 Ben Wild Long range radio frequency identification system
US8406423B2 (en) * 2010-03-16 2013-03-26 Telcordia Technologies, Inc. Multi-bit cryptographically secure encryptor for M-ary spectral phase encoder optical code division multiple access
US9367718B2 (en) 2012-10-22 2016-06-14 Iotera, Inc. Methods for enabling low-power RFID communication
US9065483B2 (en) * 2013-01-21 2015-06-23 Micron Technology, Inc. Determining soft data using a classification code
TWI651009B (zh) * 2014-02-26 2019-02-11 日商新力股份有限公司 送訊裝置、收訊裝置及資訊處理方法
US10417560B2 (en) * 2016-12-01 2019-09-17 Via Alliance Semiconductor Co., Ltd. Neural network unit that performs efficient 3-dimensional convolutions
WO2018166693A1 (en) 2017-03-16 2018-09-20 British Telecommunications Public Limited Company Broadcasting in a communications network
WO2018166695A1 (en) 2017-03-16 2018-09-20 British Telecommunications Public Limited Company Branched communications network
GB2560570A (en) * 2017-03-16 2018-09-19 British Telecomm Branched communications network
US10879952B2 (en) * 2018-04-18 2020-12-29 Huawei Technologies Co., Ltd. Apparatus and receiver for performing synchronization in analog spread spectrum systems
CN111308521B (zh) * 2018-12-12 2022-03-04 北京紫光展锐通信技术有限公司 Gnss系统的码相位估计、伪距测量方法及装置、终端
CN110690902B (zh) * 2019-09-25 2022-05-17 电子科技大学 一种基于随机截断的时间交织adc失配优化方法
CN114826324A (zh) * 2022-05-06 2022-07-29 中国人民解放军海军潜艇学院 一种基于频率压缩-能量接收器的水下移动扩频通信方法
CN115567169A (zh) * 2022-12-06 2023-01-03 成都航天通信设备有限责任公司 一种低编码速率下的解调译码方法、系统、设备及存储介质
CN116232423B (zh) * 2022-12-29 2024-08-30 西安空间无线电技术研究所 一种基于主从同步的时分双工星间链路通信方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969159A (en) 1989-03-22 1990-11-06 Harris Corporation Spread spectrum communication system employing composite spreading codes with matched filter demodulator
US5109390A (en) 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5228054A (en) 1992-04-03 1993-07-13 Qualcomm Incorporated Power-of-two length pseudo-noise sequence generator with fast offset adjustment
ZA938324B (en) 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
US5436941A (en) * 1993-11-01 1995-07-25 Omnipoint Corporation Spread spectrum spectral density techniques
MX9601211A (es) 1994-07-29 1997-06-28 Qualcomm Inc Metodo y aparato mejorados para llevar a cabo la adquisicion de busqueda en un sistema de comunicacion de cdma.
US5691974A (en) 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
US5790588A (en) * 1995-06-07 1998-08-04 Ntt Mobile Communications Network, Inc. Spread spectrum transmitter and receiver employing composite spreading codes
US5577025A (en) * 1995-06-30 1996-11-19 Qualcomm Incorporated Signal acquisition in a multi-user communication system using multiple walsh channels

Also Published As

Publication number Publication date
RU2221337C2 (ru) 2004-01-10
EP1029398A1 (de) 2000-08-23
CN100590988C (zh) 2010-02-17
WO1999019992A1 (en) 1999-04-22
CN100459444C (zh) 2009-02-04
BR9813026A (pt) 2000-08-15
JP4386574B2 (ja) 2009-12-16
CA2305718A1 (en) 1999-04-22
CA2305718C (en) 2010-12-07
KR20010031050A (ko) 2001-04-16
NO20001819D0 (no) 2000-04-07
DE69841326D1 (de) 2010-01-07
KR100693682B1 (ko) 2007-03-09
CN1819473A (zh) 2006-08-16
JP2001520473A (ja) 2001-10-30
CN1281599A (zh) 2001-01-24
EP1029398B1 (de) 2009-11-25
AU754257B2 (en) 2002-11-07
AU1270299A (en) 1999-05-03
NO20001819L (no) 2000-06-08
NO318825B1 (no) 2005-05-09
US6493376B1 (en) 2002-12-10

Similar Documents

Publication Publication Date Title
ATE450084T1 (de) Mehrlagige pn-kodespreizung in einem mehrbenutzerkommunikationssystem
ES2141708T3 (es) Correlacionador de espectro extendido.
FI971423A0 (fi) Signallokalisering i ett multikommunikaitiomssystem
AR020799A1 (es) Receptor cdma que comparte un dispositivo de rastreo entre multiples derivaciones de inclinacion
FI970276A0 (fi) Järjestelmä ja menetelmä hajaspektritekniikassa käytettävää häiriönpoistopiiriä varten
IL114762A0 (en) Improved method and apparatus for performing search acquisition in a CDMA communication system
DE69724922D1 (de) CDMA chip Synchronisationsschaltung
TR199600077A2 (tr) Tampon uygulayici.
EP0986188A3 (de) Kodemultiplexvielfachzugriffsmodem
DE69531164D1 (de) Kodefolgesystem für ocdma mit phantomträgersignal
DE69636940D1 (de) Rückorthogonalisierung von breitbandigen CDMA-Signalen
DE69636468D1 (de) Empfänger für Spread-Spectrum-Signale
DE69637192D1 (de) Differentialempfänger für Direktsequenzspreizspektrumsignale
NO994493D0 (no) FremgangsmÕte for kombinering av signaler, samt mottaker
MX9203486A (es) (quinolin-2-imetoxi)indol como inhibidores de la biosintesis de leucotrienos).
FR2742635B1 (fr) Dispositif amortisseur de chocs, notamment de hanche
ES1032283Y (es) Boligrafo de la suerte.
NO20005776L (no) Fremgangsmåte for mottaking, samt mottaker for spredt spektrum-signaler
ES2143413A1 (es) Un circuito correlador de 1 bit/2 niveles de alta velocidad con capacidad de autocalibracion de la funcion fringe-wash.
ES1032572Y (es) Dispositivo de enlace para paneles de lamas.

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties