BR9906122A - Método e aparelho para gerar uma sequência de código de embaralhamento complexo - Google Patents

Método e aparelho para gerar uma sequência de código de embaralhamento complexo

Info

Publication number
BR9906122A
BR9906122A BR9906122-8A BR9906122A BR9906122A BR 9906122 A BR9906122 A BR 9906122A BR 9906122 A BR9906122 A BR 9906122A BR 9906122 A BR9906122 A BR 9906122A
Authority
BR
Brazil
Prior art keywords
code sequence
complex
scrambling
path
long
Prior art date
Application number
BR9906122-8A
Other languages
English (en)
Inventor
Quinn Li
Nallepilli Subramanian Ramesh
Original Assignee
Lucent Technologies 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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR9906122A publication Critical patent/BR9906122A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

<B>MéTODO E APARELHO PARA GERAR UMA SEQuêNCIA DE CóDIGO DE EMBARALHAMENTO COMPLEXO<D> Um sistema de geração de seq³ência de código de embaralhamento e/ou difusão complexo ("seq³ência de código de embaralhamento") usa uma primeira seq³ência de código complexo com pelo menos dois componentes e uma segunda seq³ência de código complexo tendo pelo menos dois componentes. Os componentes da primeira seq³ência de código complexo são misturados respectivamente com os componentes correspondentes da segunda seq³ência de código complexo para gerar a seq³ência de código de embaralhamento complexo. Ao fazer isso, um deslocamento entre os componentes da seq³ência de código de embaralhamento complexo é conseguido para o mesmo usuário e/ou usuários diferentes. Por exemplo, o sistema de geração de seq³ência de código de difusão complexo pode usar um gerador de código longo que produz uma seq³ência de código longo produzida a partir do produto interno de um vetor de código e uma máscara de usuário. A seq³ência de código longa é provida a uma trajetória I e a uma trajetória Q. Para produzir uma seq³ência de código longo complexo, a seq³ência de código longo na trajetória Q é retardada para produzir uma segunda seq³ência de código longo na trajetória Q ou um componente Q da seq³ência de código longo complexo. Na trajetória I, a seq³ência de código longo I ou o componente I da seq³ência de código longo complexo é multiplicada com um componente I de uma seq³ência de código curto para produzir o componente I da seq³ência de código de embaralhamento complexo. Na trajetória Q, a seq³ência de código longo Q é multiplicada com um componente Q da seq³ência de código curto para produzir o componente Q da seq³ência de código de embaralhamento complexo. Como tal, o deslocamento entre os componentes da seq³ência de código de embaralhamento complexo entre usuários diferentes e/ou o mesmo usuário é pelo menos o período do código curto. A seq³ência de código de embaralhamento complexo pode ser usada para difundir, embaralhar, concentrar ou desembaralhar um sinal de informação.
BR9906122-8A 1998-11-12 1999-11-05 Método e aparelho para gerar uma sequência de código de embaralhamento complexo BR9906122A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/190,195 US6389138B1 (en) 1998-11-12 1998-11-12 Method and apparatus for generating a complex scrambling code sequence

Publications (1)

Publication Number Publication Date
BR9906122A true BR9906122A (pt) 2000-09-19

Family

ID=22700379

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9906122-8A BR9906122A (pt) 1998-11-12 1999-11-05 Método e aparelho para gerar uma sequência de código de embaralhamento complexo

Country Status (12)

Country Link
US (1) US6389138B1 (pt)
EP (1) EP1001568B1 (pt)
JP (1) JP3559738B2 (pt)
KR (1) KR100669832B1 (pt)
CN (1) CN1115896C (pt)
AT (1) ATE219613T1 (pt)
AU (1) AU764690B2 (pt)
BR (1) BR9906122A (pt)
CA (1) CA2284330C (pt)
DE (1) DE69901870T2 (pt)
ES (1) ES2178868T3 (pt)
ID (1) ID23828A (pt)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6788728B1 (en) * 1999-01-12 2004-09-07 Sony Corporation System and method for reducing peak-to-average ratio of the reverse link modulator in a CDMA phone system
US6680978B1 (en) * 1999-03-01 2004-01-20 Adtran, Inc. Method and apparatus for nonlinear filtering and controlling the peak-to-average ratio
US6597911B1 (en) * 1999-05-28 2003-07-22 Ericsson Inc. System, method, and apparatus for cell searching in a next generation overlay of a preexisting network
BRPI0006898B1 (pt) * 1999-07-07 2016-03-29 Samsung Electronics Co Ltd aparelho e processo para gerar códigos primário e secundário de embaralhamento de sinais em sistema de comunicação móvel umts
KR100434262B1 (ko) * 1999-08-17 2004-06-04 엘지전자 주식회사 순방향 다중 스크램블링 코드 발생 방법
KR100594042B1 (ko) * 1999-09-22 2006-06-28 삼성전자주식회사 비동기 이동통신시스템의 멀티 스크램블링 코드 생성 장치 및 방법
US6643280B1 (en) * 1999-10-27 2003-11-04 Lucent Technologies Inc. Method and apparatus for generation of CDMA long codes
JP3769432B2 (ja) * 1999-11-01 2006-04-26 日本電気株式会社 符号分割多重セルラにおける拡散符号割り当て方法及び基地局
US6961369B1 (en) 1999-11-09 2005-11-01 Aware, Inc. System and method for scrambling the phase of the carriers in a multicarrier communications system
US6724778B1 (en) * 2000-03-16 2004-04-20 Motorola, Inc. Method and apparatus for long code generation in synchronous, multi-chip rate systems
US6975584B1 (en) * 2000-09-29 2005-12-13 Qualcomm, Incorporated Communication system method and apparatus
AUPR206300A0 (en) * 2000-12-13 2001-01-11 Advanced Communications Technologies (Australia) Pty Ltd A method for quadrature spreading
US7277382B1 (en) * 2001-01-09 2007-10-02 Urbain A. von der Embse Hybrid walsh encoder and decoder for CDMA
US7394792B1 (en) 2002-10-08 2008-07-01 Urbain A. von der Embse Multi-scale CDMA
US7558310B1 (en) 2001-01-09 2009-07-07 Urbain Alfred von der Embse Multi-scale code division frequency/wavelet multiple access
US7352796B1 (en) * 2001-02-13 2008-04-01 Urbain Alfred von der Embse Multiple data rate complex Walsh codes for CDMA
KR100401801B1 (ko) * 2001-03-27 2003-10-17 (주)텔레시스테크놀로지 데이터 전송 성능을 개선하기 위한 직교주파수 분할 다중통신 시스템 및 방법
US7068701B2 (en) * 2001-04-16 2006-06-27 Motorola, Inc. Data transmission and reception within a spread-spectrum communication system
KR100424538B1 (ko) * 2001-05-29 2004-03-27 엘지전자 주식회사 이동통신시스템에서의 스크램블링 코드 생성 장치 및 방법
US6973579B2 (en) 2002-05-07 2005-12-06 Interdigital Technology Corporation Generation of user equipment identification specific scrambling code for the high speed shared control channel
US7173900B1 (en) * 2002-06-26 2007-02-06 Nortel Networks Limited Method and apparatus for chip generation of a chip sequence
US6917641B2 (en) * 2002-07-23 2005-07-12 Motorola, Inc. Method and apparatus for detecting software tampering in a subscriber device
US7697413B2 (en) * 2003-04-28 2010-04-13 Alcatel-Lucent Usa Inc. Method for generating a code mask for coding transmission over a traffic channel
US9094144B2 (en) * 2004-04-29 2015-07-28 Alcatel Lucent Methods and apparatus for code division multiple access communication using code book that provides reduced peak-to-average power ratio
US8213611B2 (en) * 2004-11-03 2012-07-03 Broadcom Corporation Two-stage block synchronization and scrambling
US7443819B2 (en) * 2005-03-23 2008-10-28 Lucent Technologies Inc. Managing scrambling codes during serving radio network subsystem relocation
CN1870484B (zh) * 2005-05-25 2010-04-28 上海原动力通信科技有限公司 蜂窝移动通信系统中用于区分不同码道的复合码生成方法
US20090129448A1 (en) * 2006-02-15 2009-05-21 Joshua Lawrence Koslov Apparatus and Method For Generating Scrambling Codes
US7715563B2 (en) * 2006-02-16 2010-05-11 General Dynamics C4 Systems, Inc. Rapid acquisition of state vectors in an encrypted data communication system
US7930623B2 (en) * 2006-03-07 2011-04-19 Samsung Electronics Co., Ltd. Method and system for generating parallel codes
US9792246B2 (en) * 2014-12-27 2017-10-17 Intel Corporation Lower-power scrambling with improved signal integrity
US10020839B2 (en) * 2016-11-14 2018-07-10 Rampart Communications, LLC Reliable orthogonal spreading codes in wireless communications
US10873361B2 (en) 2019-05-17 2020-12-22 Rampart Communications, Inc. Communication system and methods using multiple-in-multiple-out (MIMO) antennas within unitary braid divisional multiplexing (UBDM)
US10917148B2 (en) 2019-07-01 2021-02-09 Rampart Communications, Inc. Systems, methods and apparatus for secure and efficient wireless communication of signals using a generalized approach within unitary braid division multiplexing
US11025470B2 (en) 2019-07-01 2021-06-01 Rampart Communications, Inc. Communication system and method using orthogonal frequency division multiplexing (OFDM) with non-linear transformation
US10833749B1 (en) 2019-07-01 2020-11-10 Rampart Communications, Inc. Communication system and method using layered construction of arbitrary unitary matrices
US11050604B2 (en) 2019-07-01 2021-06-29 Rampart Communications, Inc. Systems, methods and apparatuses for modulation-agnostic unitary braid division multiplexing signal transformation
US11641269B2 (en) 2020-06-30 2023-05-02 Rampart Communications, Inc. Modulation-agnostic transformations using unitary braid divisional multiplexing (UBDM)
US10951442B2 (en) 2019-07-31 2021-03-16 Rampart Communications, Inc. Communication system and method using unitary braid divisional multiplexing (UBDM) with physical layer security
US10735062B1 (en) 2019-09-04 2020-08-04 Rampart Communications, Inc. Communication system and method for achieving high data rates using modified nearly-equiangular tight frame (NETF) matrices
US10965352B1 (en) 2019-09-24 2021-03-30 Rampart Communications, Inc. Communication system and methods using very large multiple-in multiple-out (MIMO) antenna systems with extremely large class of fast unitary transformations
KR102243889B1 (ko) * 2019-12-13 2021-04-23 국방과학연구소 데이터 복호화 장치 및 방법
US11159220B2 (en) 2020-02-11 2021-10-26 Rampart Communications, Inc. Single input single output (SISO) physical layer key exchange

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US414728A (en) * 1889-11-12 Can-soldering machine
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5414728A (en) 1993-11-01 1995-05-09 Qualcomm Incorporated Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels
US5497395A (en) * 1994-04-04 1996-03-05 Qualcomm Incorporated Method and apparatus for modulating signal waveforms in a CDMA communication system
KR970002951B1 (ko) 1994-04-13 1997-03-13 양승택 2^n길이 의사 난수 계열 발생 장치
US6222828B1 (en) * 1996-10-30 2001-04-24 Trw, Inc. Orthogonal code division multiple access waveform format for use in satellite based cellular telecommunications

Also Published As

Publication number Publication date
ES2178868T3 (es) 2003-01-01
ID23828A (id) 2000-05-17
DE69901870D1 (de) 2002-07-25
JP3559738B2 (ja) 2004-09-02
EP1001568A3 (en) 2001-01-10
CA2284330A1 (en) 2000-05-12
JP2000188590A (ja) 2000-07-04
AU764690B2 (en) 2003-08-28
EP1001568B1 (en) 2002-06-19
DE69901870T2 (de) 2003-01-09
CN1115896C (zh) 2003-07-23
KR20000047627A (ko) 2000-07-25
CA2284330C (en) 2003-03-18
AU5830299A (en) 2000-05-18
ATE219613T1 (de) 2002-07-15
CN1256598A (zh) 2000-06-14
EP1001568A2 (en) 2000-05-17
KR100669832B1 (ko) 2007-01-18
US6389138B1 (en) 2002-05-14

Similar Documents

Publication Publication Date Title
BR9906122A (pt) Método e aparelho para gerar uma sequência de código de embaralhamento complexo
EP0567148A3 (en) Operating circuit for galois field
EP0449265A3 (en) Random number generator
HK1068512A1 (en) Method and apparatus for generating a stream cipher
CA2102601A1 (en) Spread Spectrum Correlator
CA2218148A1 (en) Generating unique and unpredictable values
DE60045127D1 (de) Verfahren und vorrichtung für die übertragung und den empfang von durchsagen, insbesondere in rundfunkübertragungen
EP0878930A4 (en) METHOD FOR CODE GENERATION AND METHOD FOR CODE SELECTION
MY133006A (en) Method and apparatus for the generation of frequency hopping sequences
AU1046800A (en) Self-corrector randomizer-encryptor system and method
GR3029901T3 (en) Method for the preparation of water-borne coating compositions using thermoplastic polyhydroxyether resins having narrow polydispersity
ES2038912A2 (es) Sistema sincrono de aleatorizacion de datos en paralelo.
ATE277459T1 (de) Signalgenerator und dekodierer
AU3217193A (en) Method and apparatus for preventing external detection of signal information
TW428222B (en) Method of manufacturing an integrated circuit using a scanning system and a scanning system
GB2279518A (en) Method and apparatus for digital modulation using concurrent pulse addition and substraction
MY122113A (en) Audio system comprising audio signal processing circuit
DE60028119D1 (de) Pseudozufallsfolge
EP0340694A3 (en) Test pattern generator
EP1120748A4 (en) DEVICE AND METHOD FOR SYNTHESIZING MOTION IMAGES
IT1262092B (it) Dispositivo elettrostimolatore
JPS5382689A (en) Ozone generating apparatus
RU97114830A (ru) Способ лечения рекурвации коленного сустава у детей
IT1252578B (it) Generatore di segnali elettrici casuali e sue applicazioni
ES2070719A2 (es) Estructura no lineal para la generacion de secuencias pseudoaleatorias.

Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: H04J 13/10 (2011.01), H04B 1/707 (2011.0