FI955063A - Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä - Google Patents

Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä Download PDF

Info

Publication number
FI955063A
FI955063A FI955063A FI955063A FI955063A FI 955063 A FI955063 A FI 955063A FI 955063 A FI955063 A FI 955063A FI 955063 A FI955063 A FI 955063A FI 955063 A FI955063 A FI 955063A
Authority
FI
Finland
Prior art keywords
communication system
spreading codes
spreading
codes
communication
Prior art date
Application number
FI955063A
Other languages
English (en)
Swedish (sv)
Other versions
FI955063A0 (fi
Inventor
Michael D Kotzin
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 FI955063A0 publication Critical patent/FI955063A0/fi
Publication of FI955063A publication Critical patent/FI955063A/fi

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/004Orthogonal
    • H04J13/0048Walsh
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • H04J13/12Generation of orthogonal codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
FI955063A 1994-02-25 1995-10-24 Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä FI955063A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/201,595 US5515396A (en) 1994-02-25 1994-02-25 Method and apparatus for selecting a spreading code in a spectrum spread communication system
PCT/US1995/000234 WO1995023459A1 (en) 1994-02-25 1995-01-09 Method and apparatus for utilizing multiple spreading codes in a communication system

Publications (2)

Publication Number Publication Date
FI955063A0 FI955063A0 (fi) 1995-10-24
FI955063A true FI955063A (fi) 1995-10-24

Family

ID=22746473

Family Applications (1)

Application Number Title Priority Date Filing Date
FI955063A FI955063A (fi) 1994-02-25 1995-10-24 Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä

Country Status (7)

Country Link
US (1) US5515396A (fi)
EP (1) EP0705500A4 (fi)
JP (1) JPH08509591A (fi)
KR (1) KR960702223A (fi)
CA (1) CA2158356A1 (fi)
FI (1) FI955063A (fi)
WO (1) WO1995023459A1 (fi)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5682605A (en) * 1994-11-14 1997-10-28 989008 Ontario Inc. Wireless communication system
JP2658939B2 (ja) * 1995-01-30 1997-09-30 日本電気株式会社 スペクトラム拡散装置及びスペクトラム逆拡散装置
FI955113A (fi) * 1995-10-26 1997-04-27 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä, lähetin ja vastaanotin
EP0782288B1 (en) * 1995-12-26 2005-07-27 Sharp Kabushiki Kaisha Spread spectrum communication system
JPH09191301A (ja) * 1996-01-10 1997-07-22 Canon Inc スペクトラム拡散通信装置
US6005883A (en) * 1996-01-26 1999-12-21 Aironet Wireless Communications, Inc. Direct sequence network and method using PN sequence selection to represent data
JPH1051354A (ja) 1996-05-30 1998-02-20 N T T Ido Tsushinmo Kk Ds−cdma伝送方法
JP3409628B2 (ja) * 1996-06-19 2003-05-26 株式会社エヌ・ティ・ティ・ドコモ Cdma通信方法およびグループ拡散変調器
US5784366A (en) * 1996-08-27 1998-07-21 Transsky Corp. Wideband code-division-multiple access system and method
US6009117A (en) * 1996-09-17 1999-12-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Spread spectrum communication system
CA2242773C (en) * 1996-11-07 2001-10-02 Matsushita Electric Industrial Co., Ltd. Code generating method and code selecting method
US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US6072770A (en) * 1997-03-04 2000-06-06 At&T Corporation Method and system providing unified DPSK-PSK signalling for CDMA-based satellite communications
US5982807A (en) * 1997-03-17 1999-11-09 Harris Corporation High data rate spread spectrum transceiver and associated methods
US6301288B1 (en) 1997-03-19 2001-10-09 Infineon Technologies Ag Method of chip interleaving in direct sequence spread spectrum communications
US6061386A (en) * 1997-03-19 2000-05-09 I.C. Com Ltd. Method of chip interleaving in direct sequence spread spectrum communications
US5991262A (en) * 1997-03-31 1999-11-23 Motorola, Inc. Method and apparatus for reducing peak-to-average power ratio of a composite carrier signal
EP0918410A4 (en) * 1997-06-20 2000-01-19 Mitsubishi Electric Corp METHOD AND DEVICE FOR TRANSMITTING AT VARIABLE SPEED
KR19990016606A (ko) * 1997-08-18 1999-03-15 윤종용 씨디엠에이 이동통신시스템의 의사직교부호를 이용한 대역확산신호 발생장치 및 방법
SE9703161L (sv) * 1997-09-02 1999-03-03 Ericsson Telefon Ab L M Förfarande för telekommunikation
KR100396506B1 (ko) * 1997-09-13 2003-12-24 삼성전자주식회사 이중직교부호도약다중접속장치및방법
US6215813B1 (en) * 1997-12-31 2001-04-10 Sony Corporation Method and apparatus for encoding trellis coded direct sequence spread spectrum communication signals
US6018547A (en) * 1998-01-09 2000-01-25 Bsd Broadband, N.V. Method and apparatus for increasing spectral efficiency of CDMA systems using direct sequence spread spectrum signals
US6603801B1 (en) 1998-01-16 2003-08-05 Intersil Americas Inc. Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
US6563858B1 (en) 1998-01-16 2003-05-13 Intersil Americas Inc. Method of performing antenna diversity in spread spectrum in wireless local area network
US5995536A (en) * 1998-01-23 1999-11-30 Bsd Broadband, N.V. System for discrete data transmission with noise-like, broadband signals
WO2001031823A1 (en) * 1998-01-23 2001-05-03 Nortel Networks Corporation Broadband wireless access based on code division parallel access
US6122310A (en) * 1998-01-29 2000-09-19 Motorola, Inc. Method and apparatus for facilitating multi-rate data transmission by selecting a plurality of spreading codes
US6198719B1 (en) * 1998-02-27 2001-03-06 Nortel Networks Limited Bi-orthogonal code division multiple access system
US6563808B1 (en) * 1998-03-04 2003-05-13 Stanford Telecommunications, Inc. Apparatus for incorporating multiple data rates in an orthogonal direct sequence code division multiple access (ODS-CDMA) communications system
KR100260445B1 (ko) * 1998-04-04 2000-07-01 윤종용 대역확산 통신시스템의 직접 확산신호 생성장치
KR100381012B1 (ko) 1998-05-04 2003-08-19 한국전자통신연구원 부호분할 다중접속 방식에서 상향 공통 채널의 임의 접속 장치및 방법
US6317413B1 (en) * 1998-05-18 2001-11-13 Nokia Mobile Phones Ltd. Method and apparatus for assigning variable length walsh codes in a spread spectrum system
US6208615B1 (en) 1998-05-29 2001-03-27 Northern Telecom Limited Broadband wireless access based on code division parallel access
US6091760A (en) * 1998-06-29 2000-07-18 L-3 Communications Corporation Non-recursively generated orthogonal PN codes for variable rate CDMA
US6724741B1 (en) 1998-06-29 2004-04-20 L-3 Communications Corporation PN code selection for synchronous CDMA
FI106896B (fi) 1998-07-22 2001-04-30 Nokia Networks Oy Tiedonsiirtomenetelmä, radioverkkoalijärjestelmä ja tilaajapäätelaite
US6426978B1 (en) * 1998-10-01 2002-07-30 Ericsson Inc. Digital communication systems and methods for differential and/or amplitude encoding and decoding secondary symbols
DE69835087T2 (de) * 1998-10-23 2007-02-01 Sony Deutschland Gmbh Empfängerarchitektur für ein Mehrfachverwürfelkode CDMA Übertragungsverfahren
US6545975B1 (en) 1999-04-19 2003-04-08 Lucent Technologies Inc. Method of enhancing security for the transmission of information
WO2001020834A1 (en) * 1999-09-13 2001-03-22 Sony Electronics, Inc. Method and apparatus for encoding of trellis coded direct sequence spread spectrum communication signals
KR100359814B1 (ko) * 2000-03-11 2002-11-07 엘지전자 주식회사 인터리버 메모리 제어 장치 및 방법
US6850553B1 (en) 2000-03-17 2005-02-01 Harris Corporation Chirp slope multiple access
WO2001095656A1 (en) * 2000-06-05 2001-12-13 Linkair Communications, Inc. Methods for assigning radio resources
AU5057900A (en) * 2000-06-05 2001-12-17 Linkair Communications, Inc. A method for the air interface to support variable data rate
US6917609B2 (en) * 2000-08-21 2005-07-12 Pctel Maryland, Inc. Method and apparatus for CDMA pn scanning at indoor and other obstructed locations
US8385470B2 (en) * 2000-12-05 2013-02-26 Google Inc. Coding a signal with a shuffled-Hadamard function
US8374218B2 (en) 2000-12-05 2013-02-12 Google Inc. Combining signals with a shuffled-hadamard function
US6882679B2 (en) * 2000-12-29 2005-04-19 Sharp Laboratories Of America, Inc. Extension of wireless local area network communication system to accommodate higher data rates while preserving legacy receiver features
US7027418B2 (en) 2001-01-25 2006-04-11 Bandspeed, Inc. Approach for selecting communications channels based on performance
KR100449546B1 (ko) * 2001-10-08 2004-09-21 주식회사 카서 코드선택 코드분할 다중접속 변복조 방법 및 그것을구현한 장치
KR100424628B1 (ko) * 2001-12-12 2004-03-24 삼성전자주식회사 이동통신시스템에서 확산부호 생성장치 및 방법
US7366201B2 (en) * 2001-12-21 2008-04-29 Texas Instruments Incorporated Method and apparatus for vector based sequence generation
US7839762B2 (en) * 2001-12-21 2010-11-23 Texas Instruments Incorporated Method and apparatus for vector based walsh code bit sequence generation
US6987795B1 (en) 2002-04-08 2006-01-17 Meshnetworks, Inc. System and method for selecting spreading codes based on multipath delay profile estimation for wireless transceivers in a communication network
US20080084919A1 (en) * 2006-10-05 2008-04-10 Zerog Wireless, Inc. Multiprotocol wireless communication apparatus and methods
KR100835175B1 (ko) * 2006-12-07 2008-06-05 한국전자통신연구원 주파수 선택적 기저대역을 이용하는 디지털 통신 시스템 및그 방법
US8849213B2 (en) * 2009-01-21 2014-09-30 Bandspeed, Inc. Integrated circuit for signal analysis
US8447252B2 (en) * 2009-01-21 2013-05-21 Bandspeed, Inc. Adaptive channel scanning for detection and classification of RF signals
CN103269236B (zh) * 2013-05-24 2015-12-02 王红星 码元分组时移位置扩频调制和解调方法
WO2016033679A1 (en) * 2014-09-02 2016-03-10 Ecole De Technologie Superieure Methods and systems for spread spectrum communications
US11089621B2 (en) * 2016-10-07 2021-08-10 Lg Electronics Inc. Method and device for sending and receiving signals on the basis of competition-based non-orthogonal multiple access scheme

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559633A (en) * 1982-10-22 1985-12-17 Hitachi, Ltd. Spread spectrum system
US4597087A (en) * 1984-10-19 1986-06-24 Itt Corporation Frequency hopping data communication system
US4612652A (en) * 1984-10-19 1986-09-16 Itt Corporation Frequency hopping data communication system
US4606041A (en) * 1984-10-19 1986-08-12 Itt Corporation Frequency hopping data communication system
US4930140A (en) * 1989-01-13 1990-05-29 Agilis Corporation Code division multiplex system using selectable length spreading code sequences
US4969159A (en) * 1989-03-22 1990-11-06 Harris Corporation Spread spectrum communication system employing composite spreading codes with matched filter demodulator
US5123986A (en) * 1989-08-10 1992-06-23 Casio Computer Co., Ltd. Conductive connecting method
US5132986A (en) * 1989-12-22 1992-07-21 Nec Home Electronics Ltd. Csk communication system
US5204876A (en) * 1991-03-13 1993-04-20 Motorola, Inc. Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
US5235614A (en) * 1991-03-13 1993-08-10 Motorola, Inc. Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system
JPH0537491A (ja) * 1991-07-31 1993-02-12 Clarion Co Ltd スペクトラム拡散通信装置
US5210770A (en) * 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
JPH05227125A (ja) * 1992-02-14 1993-09-03 Matsushita Electric Ind Co Ltd スペクトラム拡散方式通信装置

Also Published As

Publication number Publication date
FI955063A0 (fi) 1995-10-24
CA2158356A1 (en) 1995-08-31
WO1995023459A1 (en) 1995-08-31
KR960702223A (ko) 1996-03-28
EP0705500A1 (en) 1996-04-10
US5515396A (en) 1996-05-07
EP0705500A4 (en) 1998-12-16
JPH08509591A (ja) 1996-10-08

Similar Documents

Publication Publication Date Title
FI955063A (fi) Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä
FI961404A (fi) Menetelmä ja laite tilaajan tunnistamiseksi viestintäjärjestelmässä
FI945336A0 (fi) Menetelmä ja laite koherentin viestinnän suorittamiseksi hajaspektriviestintäjärjestelmässä
FI961838A0 (fi) Menetelmä ja laite pakettien kohdistamiseksi viestintäjärjestelmässä
FI965195A0 (fi) Menetelmä ja laite tietoliikenteen kanavanvaihdon suorittamiseksi viestintäjärjestelmässä
FI951784A (fi) Menetelmä ja laite hyppelevää ohjauskanavaa käyttäen viestintäjärjestelmässä
FI965257A0 (fi) Menetelmä ja laite sijainnin löytämiseksi CDMA-järjestelmässä
FI20001211A (fi) Menetelmä ja laite kanavanvaihtoon CDMA-järjestelmässä käyttämällä toistimia
FI981265A (fi) Menetelmä ja laitteisto linkin toteuttamiseksi langattomassa tietoliikennejärjestelmässä
FI973378A0 (fi) Laite ja menetelmä
FI963623A (fi) Menetelmä ja laitteisto taajuuksien jakamiseksi solukkotietoliikennejäjestelmässä
NO964217D0 (no) Fremgangsmåte og anordning relatert til telekommunikasjonssystemer
FI946045A0 (fi) Menetelmä ja laite tehon estimoimiseksi ortogonaalista koodausta käyttävässä viestintäjärjestelmässä
FI955980A0 (fi) Menetelmä ja laite uudelleenjärjestämiseen
FI982518A0 (fi) Menetelmä ja laite hiljaisen keilan aikaansaamiseksi tietoliikennejärjestelmässä
DE69534524D1 (de) Verfahren und Gerät zur Synchronisierung in einem Direktsequenzspreizspektrumkommunikationssystem
KR970700962A (ko) 멀티유저-간섭 감소 장치 및 방법과 코드분할 다중 액세스 통신 시스템(method and apparatus for multiuser-interference reduction)
FI963245A (fi) Menetelmä ja laite häiriöiden lieventämiseksi viestintäjärjestelmässä
FI981050A (fi) Menetelmä ja laite telekommunikaatiojärjestelmässä
EE9900245A (et) Sidevõrgus kasutatav aparatuur ja meetod
FI980297A0 (fi) Laite ja menetelmä merkkisignaalin muodostamiseksi langattomassa viestintäjärjestelmässä
EP0700612A4 (en) TIME MULTIPLEXING METHOD AND APPARATUS RELATING TO THE USE OF SPREAD CODES IN A COMMUNICATION SYSTEM
FI941151A0 (fi) Menetelmä ja laite kanavanvaihtojen suorittamiseksi langattomassa viestintäjärjestelmässä
NO971988D0 (no) Fremgangsmåte og anordning for telekommunikasjon
FI955266A (fi) Menetelmä ja laitteisto viestien välittämiseksi tietoliikennejärjestelmässä