AR025263A1 - Metodo para determinar un grupo de codigos de aleatorizacion para una senal recibida en un sistema de comunicaciones digitales, metodo para comunicar una identidad de un grupo de codigos de aleatorizacion correspondientes a una senal transmitida en un sistema de comunicaciones digitales, sistema de - Google Patents

Metodo para determinar un grupo de codigos de aleatorizacion para una senal recibida en un sistema de comunicaciones digitales, metodo para comunicar una identidad de un grupo de codigos de aleatorizacion correspondientes a una senal transmitida en un sistema de comunicaciones digitales, sistema de

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Publication number
AR025263A1
AR025263A1 ARP990104117A ARP990104117A AR025263A1 AR 025263 A1 AR025263 A1 AR 025263A1 AR P990104117 A ARP990104117 A AR P990104117A AR P990104117 A ARP990104117 A AR P990104117A AR 025263 A1 AR025263 A1 AR 025263A1
Authority
AR
Argentina
Prior art keywords
group
random codes
identity
communicating
determining
Prior art date
Application number
ARP990104117A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22467212&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AR025263(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR025263A1 publication Critical patent/AR025263A1/es

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

Métodos y aparatos para sincronizar un transmisor y un receptor se basan en secuencias ortogonales que tienen propiedades de correlacion optimizadas. Eltransmisor puede generar versiones signadas de las secuencias S-Hadamard que se obtienenaleatoriz ando por posicion un conjunto de secuencias Walsh-Hadamardcon una secuencia especial que tiene elementos complejos de magnitud constante. El receptor estima una localizacion temporal e identidad de secuencia de unaversion recibida de lasenal de sin nc ronizacion.
ARP990104117A 1998-08-17 1999-08-17 Metodo para determinar un grupo de codigos de aleatorizacion para una senal recibida en un sistema de comunicaciones digitales, metodo para comunicar una identidad de un grupo de codigos de aleatorizacion correspondientes a una senal transmitida en un sistema de comunicaciones digitales, sistema de AR025263A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/135,247 US6526091B1 (en) 1998-08-17 1998-08-17 Communication methods and apparatus based on orthogonal hadamard-based sequences having selected correlation properties

Publications (1)

Publication Number Publication Date
AR025263A1 true AR025263A1 (es) 2002-11-20

Family

ID=22467212

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990104117A AR025263A1 (es) 1998-08-17 1999-08-17 Metodo para determinar un grupo de codigos de aleatorizacion para una senal recibida en un sistema de comunicaciones digitales, metodo para comunicar una identidad de un grupo de codigos de aleatorizacion correspondientes a una senal transmitida en un sistema de comunicaciones digitales, sistema de

Country Status (15)

Country Link
US (1) US6526091B1 (es)
EP (1) EP1105991B1 (es)
JP (1) JP4230111B2 (es)
KR (1) KR100691603B1 (es)
CN (1) CN1143467C (es)
AR (1) AR025263A1 (es)
AU (1) AU772280B2 (es)
BR (1) BR9913041B1 (es)
CA (1) CA2338560C (es)
DE (1) DE69936455C5 (es)
MY (1) MY125162A (es)
RU (1) RU2234196C2 (es)
TW (1) TW435012B (es)
WO (1) WO2000010277A1 (es)
ZA (1) ZA200100769B (es)

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Also Published As

Publication number Publication date
TW435012B (en) 2001-05-16
DE69936455D1 (de) 2007-08-16
AU5662399A (en) 2000-03-06
AU772280B2 (en) 2004-04-22
KR20010072762A (ko) 2001-07-31
BR9913041A (pt) 2001-05-08
MY125162A (en) 2006-07-31
EP1105991A1 (en) 2001-06-13
CN1143467C (zh) 2004-03-24
KR100691603B1 (ko) 2007-03-09
JP2002523922A (ja) 2002-07-30
BR9913041B1 (pt) 2013-05-28
RU2234196C2 (ru) 2004-08-10
US6526091B1 (en) 2003-02-25
CN1323474A (zh) 2001-11-21
DE69936455T2 (de) 2008-03-06
ZA200100769B (en) 2001-08-08
DE69936455C5 (de) 2021-07-29
CA2338560C (en) 2008-03-25
WO2000010277A1 (en) 2000-02-24
CA2338560A1 (en) 2000-02-24
JP4230111B2 (ja) 2009-02-25
EP1105991B1 (en) 2007-07-04

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