MX9703830A - Sistema de modulacion de cuadratura en estrella 16 codificado en rejilla concatenada reed-solomon de alto regimen para transmision de datos sobre radio movil celular. - Google Patents

Sistema de modulacion de cuadratura en estrella 16 codificado en rejilla concatenada reed-solomon de alto regimen para transmision de datos sobre radio movil celular.

Info

Publication number
MX9703830A
MX9703830A MX9703830A MX9703830A MX9703830A MX 9703830 A MX9703830 A MX 9703830A MX 9703830 A MX9703830 A MX 9703830A MX 9703830 A MX9703830 A MX 9703830A MX 9703830 A MX9703830 A MX 9703830A
Authority
MX
Mexico
Prior art keywords
circuit
transmission
receiver
solomon
reed
Prior art date
Application number
MX9703830A
Other languages
English (en)
Inventor
Siavash M Alamouti
S Andrew Wright
William D Haymond
Original Assignee
At & T Wireless Services 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 At & T Wireless Services Inc filed Critical At & T Wireless Services Inc
Publication of MX9703830A publication Critical patent/MX9703830A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H04L27/3427—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes in which the constellation is the n - fold Cartesian product of a single underlying two-dimensional constellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Un sistema de comunicacion celular proporciona codificacion/descodificacion de rejilla de una señal QAM en Estrella 16. El sistema incluye un circuito transmisor y un circuito receptor. El circuito transmisor tiene un codificador. Reed-Solomon, un circuito intercalador externo para dispersar los errores de incremento repentino, un codificador de rejilla cíclica, un intercalador interno para reducir la memoria de canal, un formador de mapa GAM en Estrella 16 y un transmisor de radiofrecuencia. El circuito receptor tiene un receptor de radiofrecuencia circuitos de compensacion y filtracion y control de tiempo y el circuito de recuperacion de sincronizacion. El receptor tiene también un desintercalador interno, un descodificador de rejilla, un desintercalador externo y un descodificador Reed-Solomon.
MX9703830A 1994-11-23 1995-11-22 Sistema de modulacion de cuadratura en estrella 16 codificado en rejilla concatenada reed-solomon de alto regimen para transmision de datos sobre radio movil celular. MX9703830A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/344,156 US5659578A (en) 1994-11-23 1994-11-23 High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio
PCT/US1995/015368 WO1996016496A2 (en) 1994-11-23 1995-11-22 Trellis coded 16 star qam with reed-solomon coding

Publications (1)

Publication Number Publication Date
MX9703830A true MX9703830A (es) 1997-12-31

Family

ID=23349293

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9703830A MX9703830A (es) 1994-11-23 1995-11-22 Sistema de modulacion de cuadratura en estrella 16 codificado en rejilla concatenada reed-solomon de alto regimen para transmision de datos sobre radio movil celular.

Country Status (6)

Country Link
US (2) US5659578A (es)
AU (1) AU4369996A (es)
BR (1) BR9509749A (es)
CA (1) CA2203903C (es)
MX (1) MX9703830A (es)
WO (1) WO1996016496A2 (es)

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AU4369996A (en) 1996-06-17
CA2203903C (en) 2007-09-25
WO1996016496A2 (en) 1996-05-30
US5659578A (en) 1997-08-19
CA2203903A1 (en) 1996-05-30
US5838728A (en) 1998-11-17
BR9509749A (pt) 1997-12-23

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