KR950035171A - 스펙트럼 확산통신용 확산부호 생성장치 - Google Patents

스펙트럼 확산통신용 확산부호 생성장치 Download PDF

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Publication number
KR950035171A
KR950035171A KR1019950003688A KR19950003688A KR950035171A KR 950035171 A KR950035171 A KR 950035171A KR 1019950003688 A KR1019950003688 A KR 1019950003688A KR 19950003688 A KR19950003688 A KR 19950003688A KR 950035171 A KR950035171 A KR 950035171A
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South Korea
Prior art keywords
initial state
code generator
spreading code
code
state register
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KR1019950003688A
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English (en)
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KR100226308B1 (ko
Inventor
기요끼 세끼네
도시오 가또
마나부 가와베
다꾸로 사또
Original Assignee
진구지 준
오끼덴끼고오교 가부시끼가이샤
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Publication of KR950035171A publication Critical patent/KR950035171A/ko
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Publication of KR100226308B1 publication Critical patent/KR100226308B1/ko

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

〔목적〕부호분할 다원접속 변복조장치의 시스템 및 하드웨어의 설계를 간이화하는 장주기 PN 부호생성기 카운터 초기상태 레지스터 제어장치.
〔구성〕제어장치(104)는, 카운터(102), 초기상태 레지스터(103)에 생성 부호의 주기, 초기상태를 각각 지정한다. 그후 초기상태 레지스터(103)는 장주기 PN 부호 생성기(101)에 초기상태를 부여한다. 카운터(102)는, 초기상태 레지스터(103)가 생성하는 부호를 세고, 주기에 달했으면, 초기상태 레지스터(103)에 트리거신호를 보낸다. 트리거신호를 받으면, 초기상태 레지스터(103)는 장주기 PN 부호 생성기(101) 재차 초기상태를 주고, 반복부호를 생성한다.

Description

스펙트럼 확산통신용 확산부호 생성장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 부호생성장치의 블럭도.

Claims (1)

  1. 기지국이 이동국에 인식되기 위하여 필요한 기지국용 확산부호 발생기를 갖고, 이동국이 기지국에 인식되기 위하여 필요한 이동국용 확산부호 발생기를 가지며, 입력데이터를 상기 확산부호로 확산변조하는 스펙트럼 확산통신장치의 부호생성에 있어서, 어느 장주기 의사 랜덤 부호계열을 생성하는 회로에, 임의로 결정된 초기 위상상태와 확산부호주기의 쌍을 부여함으로써, 끄집어낸 복수의 부분계열을 확산부호로 하는 것을 특징으로 하는 부호 생성장치,
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950003688A 1994-04-28 1995-02-24 스펙트럼 확산 통신용 확산부호 생성장치 KR100226308B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9191294A JP2937743B2 (ja) 1994-04-28 1994-04-28 スペクトル拡散通信のための拡散符号生成装置
JP94-91912 1994-04-28

Publications (2)

Publication Number Publication Date
KR950035171A true KR950035171A (ko) 1995-12-30
KR100226308B1 KR100226308B1 (ko) 1999-10-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950003688A KR100226308B1 (ko) 1994-04-28 1995-02-24 스펙트럼 확산 통신용 확산부호 생성장치

Country Status (4)

Country Link
US (1) US5631922A (ko)
EP (1) EP0680167A3 (ko)
JP (1) JP2937743B2 (ko)
KR (1) KR100226308B1 (ko)

Families Citing this family (17)

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Publication number Priority date Publication date Assignee Title
CA2184184C (en) * 1994-12-28 2000-05-30 Kenichi Higuchi Apparatus and method for establishing acquisition of spreading code in cdma transmission system
JP3551333B2 (ja) * 1995-05-24 2004-08-04 ソニー株式会社 疑似雑音符号発生回路
US6765895B1 (en) 1996-03-15 2004-07-20 Matsushita Electric Industrial Co., Ltd. Spectrum spread communication system
JPH09307951A (ja) * 1996-03-15 1997-11-28 Matsushita Electric Ind Co Ltd スペクトル拡散通信装置
US5960048A (en) * 1996-03-26 1999-09-28 Telefonaktiebolaget Lm Ericsson Method and an arrangement for receiving a symbol sequence
SE515911C2 (sv) * 1996-03-26 2001-10-29 Ericsson Telefon Ab L M Förfarande och anordning för mottagning av en symbolsekvens
US5995536A (en) * 1998-01-23 1999-11-30 Bsd Broadband, N.V. System for discrete data transmission with noise-like, broadband signals
US6266331B1 (en) 1998-07-01 2001-07-24 Lucent Technologies, Inc. Device for generating multiple spreading sequences in reverse high speed data channels
EP1123586A1 (en) * 1998-10-19 2001-08-16 QUALCOMM Incorporated Method and apparatus for pseudonoise spreading in a cdma communication system
KR20000066904A (ko) * 1999-04-21 2000-11-15 윤종용 부호분할다중접속 통신시스템의 확산코드 발생장치 및 방법
US6643280B1 (en) * 1999-10-27 2003-11-04 Lucent Technologies Inc. Method and apparatus for generation of CDMA long codes
US6728225B1 (en) * 2000-02-10 2004-04-27 Interdigital Technology Corporation Asymmetrical forward/reverse transmission bandwidth
KR100424538B1 (ko) * 2001-05-29 2004-03-27 엘지전자 주식회사 이동통신시스템에서의 스크램블링 코드 생성 장치 및 방법
US6667708B2 (en) * 2001-12-28 2003-12-23 Motorola, Inc. Method and system for a programmable code generator
JP4685682B2 (ja) * 2006-03-31 2011-05-18 富士通株式会社 半導体装置
US8254362B2 (en) * 2008-01-09 2012-08-28 The Boeing Company Method and device of generating time-varying preamble sequence and pseudorandom noise (PN) binary sequence in direct sequence spread spectrum (DSSS) communications
US10666374B2 (en) 2018-05-11 2020-05-26 At&T Intellectual Property I, L.P. Non-orthogonal multiple access for uplink data transmission for 5G or other next generation network

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4759034A (en) * 1986-12-02 1988-07-19 General Research Of Electronics, Inc. Multi-step spread spectrum communication apparatus
US5121407A (en) * 1990-09-27 1992-06-09 Pittway Corporation Spread spectrum communications system
US5280499A (en) * 1991-10-18 1994-01-18 Ricoh Company, Ltd. Spread spectrum communication system
KR100345969B1 (ko) * 1993-08-10 2002-10-25 소니 가부시끼 가이샤 확산부호발생방법및장치
US5488662A (en) * 1994-03-10 1996-01-30 Motorola, Inc. System and method for identifying an arrival time of a communicated signal

Also Published As

Publication number Publication date
JPH07297754A (ja) 1995-11-10
EP0680167A2 (en) 1995-11-02
JP2937743B2 (ja) 1999-08-23
US5631922A (en) 1997-05-20
KR100226308B1 (ko) 1999-10-15
EP0680167A3 (en) 1997-01-02

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