SE520619C2 - Kommunikationssystem med spritt spektrum - Google Patents

Kommunikationssystem med spritt spektrum

Info

Publication number
SE520619C2
SE520619C2 SE9702891A SE9702891A SE520619C2 SE 520619 C2 SE520619 C2 SE 520619C2 SE 9702891 A SE9702891 A SE 9702891A SE 9702891 A SE9702891 A SE 9702891A SE 520619 C2 SE520619 C2 SE 520619C2
Authority
SE
Sweden
Prior art keywords
generator
code
multiplier
value
generated
Prior art date
Application number
SE9702891A
Other languages
English (en)
Swedish (sv)
Other versions
SE9702891L (sv
SE9702891D0 (sv
Inventor
Kenichi Takai
Original Assignee
Nec Corp
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 Nec Corp filed Critical Nec Corp
Publication of SE9702891D0 publication Critical patent/SE9702891D0/xx
Publication of SE9702891L publication Critical patent/SE9702891L/xx
Publication of SE520619C2 publication Critical patent/SE520619C2/sv

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
    • H04B1/7073—Synchronisation aspects
    • H04B1/70735—Code identification
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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
    • H04B2201/70702—Intercell-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
SE9702891A 1996-08-12 1997-08-07 Kommunikationssystem med spritt spektrum SE520619C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21254896A JP2800797B2 (ja) 1996-08-12 1996-08-12 スペクトル拡散通信方式

Publications (3)

Publication Number Publication Date
SE9702891D0 SE9702891D0 (sv) 1997-08-07
SE9702891L SE9702891L (sv) 1998-02-13
SE520619C2 true SE520619C2 (sv) 2003-08-05

Family

ID=16624516

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702891A SE520619C2 (sv) 1996-08-12 1997-08-07 Kommunikationssystem med spritt spektrum

Country Status (5)

Country Link
US (1) US5978412A (ja)
JP (1) JP2800797B2 (ja)
CN (1) CN1074621C (ja)
BR (1) BR9702752A (ja)
SE (1) SE520619C2 (ja)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
JP2776312B2 (ja) * 1995-07-21 1998-07-16 日本電気株式会社 光モジュール装置及び光コネクタ接続装置
US7035232B1 (en) * 1996-12-03 2006-04-25 Canon Kabushiki Kaisha Spread-spectrum communication method and apparatus
JP3305217B2 (ja) * 1996-12-03 2002-07-22 キヤノン株式会社 通信方法
JP2861985B2 (ja) * 1997-06-16 1999-02-24 日本電気株式会社 Ｃｄｍａ用高速セルサーチ方式
JPH11136298A (ja) 1997-10-30 1999-05-21 Nec Corp デジタル通信方式
US6859506B1 (en) * 2000-10-10 2005-02-22 Freescale Semiconductor, Inc. Ultra wideband communication system, method, and device with low noise reception
JPH11225374A (ja) * 1998-02-06 1999-08-17 Matsushita Electric Ind Co Ltd スペクトル拡散コードレス電話装置
JP3028800B2 (ja) * 1998-05-01 2000-04-04 日本電気株式会社 Ｃｄｍａセルラシステム及びｃｄｍａセルラシステムにおける拡散符号検出方法
JP3039525B2 (ja) 1998-07-16 2000-05-08 日本電気株式会社 拡散符号割当装置および方法
KR20000009140A (ko) * 1998-07-21 2000-02-15 윤종용 확산대역 통신시스템의 초기 포착 및 프레임동기 장치 및 방법
FR2782426B1 (fr) * 1998-08-12 2000-09-15 Alsthom Cge Alcatel Dispositif d'etalement ou de desetalement de spectre, notamment pour la transmission dans un systeme cellulaire de radiocommunications mobiles du type a acces multiple par repartition de codes
KR100288753B1 (ko) * 1998-12-31 2001-05-02 윤종용 멀티캐리어 부호분할다중접속 통신시스템의 수신장치 방법
US6873647B1 (en) * 1999-02-26 2005-03-29 Qualcomm Incorporated Method and system for reducing synchronization time in a CDMA wireless communication system
JP4531734B2 (ja) * 1999-05-10 2010-08-25 株式会社エヌ・ティ・ティ・ドコモ インターリーブ方法及び送信装置
US6307878B1 (en) * 1999-06-03 2001-10-23 Dspc Technologies Ltd Cellular telephony searcher
DE19933489C2 (de) * 1999-07-16 2003-05-08 Infineon Technologies Ag Verfahren und Einrichtung zum Erzeugen eines kanal- und teilnehmercodierten Nachrichtensignals
KR100429545B1 (ko) * 1999-08-17 2004-04-28 삼성전자주식회사 이동통신 시스템의 스크램블링 부호의 식별자 통신방법
JP3279547B2 (ja) * 1999-09-20 2002-04-30 日本電気株式会社 Ｃｄｍａ受信機の同期捕捉装置
US6603818B1 (en) 1999-09-23 2003-08-05 Lockheed Martin Energy Research Corporation Pulse transmission transceiver architecture for low power communications
US6947721B2 (en) * 2000-05-15 2005-09-20 Texas Instruments Incorporated Wireless communications with transceiver-integrated frequency shift control and power control
WO2001094972A1 (en) * 2000-06-06 2001-12-13 Mitsubishi Denki Kabushiki Kaisha Gps receiver and gps reception
US20020181439A1 (en) * 2000-08-30 2002-12-05 Masayuki Orihashi Data transmitting apparatus, radio communication system and radio communication method
US7339955B2 (en) * 2000-09-25 2008-03-04 Pulse-Link, Inc. TDMA communication method and apparatus using cyclic spreading codes
FR2819125B1 (fr) * 2000-12-29 2004-04-02 Commissariat Energie Atomique Dispositif d'echange de donnees numeriques dans un systeme cdma
JP2005500760A (ja) 2001-08-14 2005-01-06 フラリオン　テクノロジーズ，インコーポレーテッド 無線ネットワークの接続方法及び装置
US7406647B2 (en) 2001-12-06 2008-07-29 Pulse-Link, Inc. Systems and methods for forward error correction in a wireless communication network
US8045935B2 (en) 2001-12-06 2011-10-25 Pulse-Link, Inc. High data rate transmitter and receiver
US7403576B2 (en) 2001-12-06 2008-07-22 Pulse-Link, Inc. Systems and methods for receiving data in a wireless communication network
US7349439B2 (en) * 2001-12-06 2008-03-25 Pulse-Link, Inc. Ultra-wideband communication systems and methods
US7483483B2 (en) 2001-12-06 2009-01-27 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7317756B2 (en) 2001-12-06 2008-01-08 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7391815B2 (en) 2001-12-06 2008-06-24 Pulse-Link, Inc. Systems and methods to recover bandwidth in a communication system
US7450637B2 (en) 2001-12-06 2008-11-11 Pulse-Link, Inc. Ultra-wideband communication apparatus and methods
US7095710B2 (en) * 2001-12-21 2006-08-22 Qualcomm Decoding using walsh space information
JP2005006291A (ja) 2003-05-21 2005-01-06 Matsushita Electric Ind Co Ltd パルス変調型無線通信装置
US7280608B2 (en) * 2003-05-27 2007-10-09 The Boeing Company Real time dynamic correlator
US7505589B2 (en) * 2003-09-09 2009-03-17 Temarylogic, Llc Ternary and higher multi-value digital scramblers/descramblers
US8577026B2 (en) 2010-12-29 2013-11-05 Ternarylogic Llc Methods and apparatus in alternate finite field based coders and decoders
US20070110229A1 (en) * 2004-02-25 2007-05-17 Ternarylogic, Llc Ternary and Multi-Value Digital Signal Scramblers, Descramblers and Sequence of Generators
US7643632B2 (en) * 2004-02-25 2010-01-05 Ternarylogic Llc Ternary and multi-value digital signal scramblers, descramblers and sequence generators
US7696785B2 (en) * 2004-02-25 2010-04-13 Ternarylogic Llc Implementing logic functions with non-magnitude based physical phenomena
US7580472B2 (en) * 2004-02-25 2009-08-25 Ternarylogic Llc Generation and detection of non-binary digital sequences
US8374289B2 (en) 2004-02-25 2013-02-12 Ternarylogic Llc Generation and detection of non-binary digital sequences
US7548092B2 (en) 2004-02-25 2009-06-16 Ternarylogic Llc Implementing logic functions with non-magnitude based physical phenomena
US7218144B2 (en) * 2004-02-25 2007-05-15 Ternarylogic Llc Single and composite binary and multi-valued logic functions from gates and inverters
US20060021003A1 (en) * 2004-06-23 2006-01-26 Janus Software, Inc Biometric authentication system
US7562106B2 (en) * 2004-08-07 2009-07-14 Ternarylogic Llc Multi-value digital calculating circuits, including multipliers
US20100164548A1 (en) * 2004-09-08 2010-07-01 Ternarylogic Llc Implementing Logic Functions With Non-Magnitude Based Physical Phenomena
WO2006090872A1 (ja) * 2005-02-25 2006-08-31 Nec Corporation 符号系列送信方法、無線通信システム、送信機ならびに受信機
US7443819B2 (en) * 2005-03-23 2008-10-28 Lucent Technologies Inc. Managing scrambling codes during serving radio network subsystem relocation
JP2011099833A (ja) * 2009-11-09 2011-05-19 Denso Corp 力学量検出装置
US9066249B2 (en) * 2012-03-07 2015-06-23 Apple Inc. Methods and apparatus for interference coordinated transmission and reception in wireless networks
EP2984898B1 (en) * 2013-04-10 2019-11-27 Telefonaktiebolaget LM Ericsson (publ) A method and wireless device for providing device-to-device communication

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227124A (en) * 1975-08-28 1977-03-01 Kawakita Kogyo Kk Cup urging back and lumber support of driver's seat back
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
JPS63127634A (ja) * 1986-11-18 1988-05-31 Matsushita Electric Ind Co Ltd スペクトラム拡散通信方法
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5467367A (en) * 1991-06-07 1995-11-14 Canon Kabushiki Kaisha Spread spectrum communication apparatus and telephone exchange system
JPH05110538A (ja) * 1991-10-15 1993-04-30 Mitsubishi Electric Corp スペクトル拡散通信装置
US5546424A (en) * 1993-06-30 1996-08-13 Casio Computer Co., Ltd. Spread spectrum communication system
US5572514A (en) * 1993-06-30 1996-11-05 Casio Computer Co., Ltd. Spread spectrum communication system capable of detecting occupying state of channel by off-communication terminal
JP2863975B2 (ja) * 1993-07-16 1999-03-03 松下電器産業株式会社 Ｃｄｍａ方式送信装置および受信装置、ｃｄｍａ方式送信方法およびｃｄｍａ方式移動通信システム
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
KR100217715B1 (ko) * 1993-12-31 1999-09-01 윤종용 직접확산/부호분할 다중접근 시스템에서의 업-링크 접근 시스템
FI96154C (fi) * 1994-05-30 1996-05-10 Nokia Telecommunications Oy Menetelmä tilaajapäätelaitteiden synkronisoimiseksi, tukiasema sekä tilaajapäätelaite
JP2737655B2 (ja) * 1994-07-12 1998-04-08 双葉電子工業株式会社 スペクトル拡散通信方式
FI97505C (fi) * 1994-11-29 1996-12-27 Nokia Telecommunications Oy Tiedonsiirtomenetelmä, lähetin ja vastaanotin
US5781541A (en) * 1995-05-03 1998-07-14 Bell Atlantic Network Services, Inc. CDMA system having time-distributed transmission paths for multipath reception

Also Published As

Publication number Publication date
CN1176547A (zh) 1998-03-18
US5978412A (en) 1999-11-02
BR9702752A (pt) 1999-01-19
JP2800797B2 (ja) 1998-09-21
JPH1056405A (ja) 1998-02-24
SE9702891L (sv) 1998-02-13
SE9702891D0 (sv) 1997-08-07
CN1074621C (zh) 2001-11-07

Similar Documents

Publication Publication Date Title
US5978412A (en) Spread spectrum communication system
EP1104955B1 (en) System and method for generating signal waveforms in a CDMA cellular telephone system
RU2120189C1 (ru) Квадратурное мультиплексирование двух сигналов данных, расширенных посредством различных pn-последовательностей
US7095778B2 (en) Spread spectrum transmitter and spread spectrum receiver
US7839960B2 (en) System and method for generating signal waveforms in a CDMA cellular telephone system
EP0809895B1 (en) Method and apparatus for using walsh shift keying in a spread spectrum communication system
US7386026B1 (en) Method and system for synchronizing and selectively addressing multiple receivers in a wireless, spread spectrum communication system
US6535502B1 (en) Pilot symbols
US4280222A (en) Receiver and correlator switching method
GB2286949A (en) A unique word recognition system
US9247510B2 (en) Use of correlation combination to achieve channel detection
US6587517B1 (en) Multi-stage receiver
JP2009296637A (ja) １対１スペクトル拡散通信における信号の同期捕捉
US9015220B2 (en) Correlation device
KR100460554B1 (ko) 코드분할 다중접속 시스템에서 프리앰블 시퀀스들을발생시키는 방법
KR100757715B1 (ko) 코드분할 다중 접속 채널을 이용한 고속 데이터 송수신을위한 방법 및 장치
EP0838917A2 (en) Code and frequency division multiple access communications system
AU746327B2 (en) Matched filter simultaneously operating for two different type codes
JP2002525958A (ja) 通信の受信または送信方法
JP3353551B2 (ja) 符号多重受信装置
Swales et al. Downlink design for a wideband DS-CDMA demonstrator
KR100364758B1 (ko) 통신 시스템의 채널 추정 장치 및 방법
Hassan Non-coherent slot synchronization techniques for WCDMA systems

Legal Events

Date Code Title Description
NUG Patent has lapsed