ES2527862T3 - Ensanchado espacial con esquemas de diversidad de transmisión espacio-tiempo y espacio-frecuencia para un sistema de comunicación inalámbrica - Google Patents

Ensanchado espacial con esquemas de diversidad de transmisión espacio-tiempo y espacio-frecuencia para un sistema de comunicación inalámbrica Download PDF

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ES2527862T3
ES2527862T3 ES05794004.1T ES05794004T ES2527862T3 ES 2527862 T3 ES2527862 T3 ES 2527862T3 ES 05794004 T ES05794004 T ES 05794004T ES 2527862 T3 ES2527862 T3 ES 2527862T3
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Jay Rodney Walton
John W. Ketchum
Mark S. Wallace
Steven J. Howard
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Qualcomm Inc
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Qualcomm Inc
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    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0637—Properties of the code
    • H04L1/0668—Orthogonal systems, e.g. using Alamouti codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0678—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using different spreading codes between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/068—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using space frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • 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
    • H04L1/0041—Arrangements at the transmitter end
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0606—Space-frequency coding
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0625—Transmitter arrangements
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0637—Properties of the code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

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

Abstract

Un procedimiento que comprende: procesar múltiples flujos de símbolos de datos en base a un esquema de diversidad de transmisión para generar múltiples flujos de símbolos codificados; y llevar a cabo procesamiento espacial sobre los múltiples flujos de símbolos codificados para generar símbolos de transmisión para su transmisión a través de una pluralidad de antenas (136); en el que la realización de procesamiento espacial sobre los múltiples flujos de símbolos codificados comprende llevar a cabo ensanchado espacial con una pluralidad de matrices, y el procedimiento caracterizado por: utilizar diferentes matrices para diferentes sub-bandas de frecuencia y diferentes intervalos de tiempo, en donde cada intervalo de tiempo se extiende a lo largo de un múltiplo entero de dos períodos de símbolo para diversidad de transmisión espacio-tiempo; que comprende además aplicar diferentes retardos cíclicos (316) para la pluralidad de antenas (136).

Description

imagen1
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E05794004
14-01-2015
conjugado complejo y "T" denota la transpuesta. Alternativamente, el procesador TX STTD 120 puede generar dos
*]T *
vectores s1 = [ sa -sb y s2 = [ sb -sa ]T para el par de símbolos de datos sa y sb. Para ambos esquemas de codificación STTD, cada vector st, para t = 1, 2, incluye dos símbolos codificados para ser enviados desde NT antenas de transmisión en un periodo de símbolo, donde se envía NT ≥ 2. El vector s1 se envía en el primer período 5 de símbolos, y el vector s2 se envía en el siguiente periodo de símbolo. Cada símbolo de datos se incluye en ambos vectores y por lo tanto se envía en dos períodos de símbolos. El m-ésimo flujo de símbolos está formado por el elemento m-ésimo de los dos vectores s1 y s2. Para mayor claridad, la siguiente descripción es para el esquema de codificación STTD con s1 = [ sa sb ]T y s2 = [ sb* -sa* ]T. Para este esquema de codificación STTD, el primer flujo de símbolos codificados incluye los símbolos codificados sa y sb* y el segundo flujo de símbolos codificados incluye los
10 símbolos codificados sb y -sa*.
La Tabla 1 enumera cuatro configuraciones que pueden utilizarse para la transmisión de datos. Una configuración NC x ND indica la transmisión de símbolos de ND flujos de datos como NC flujos de símbolos codificados, donde ND ≥ 1 y NC ≥ND. La primera columna identifica las cuatro configuraciones. Para cada configuración, la segunda columna 15 indica el número de flujos de símbolos de datos que se envía, y la tercera columna indica el número de flujos de símbolos codificados. La cuarta columna indica los ND flujos de símbolos de datos de cada configuración, la quinta columna muestra los flujos de símbolos codificados para cada flujo de símbolos de datos, la sexta columna da el símbolo codificado a enviar en el primer período de símbolos (t = 1) para cada flujo de símbolos codificados, y la séptima columna da el símbolo codificado a enviar en el segundo período de símbolos (t = 2) para cada flujo de
20 símbolos codificados. El número de símbolos de datos enviados en cada intervalo de 2 símbolos es igual a dos veces el número de símbolo de flujos de datos, o 2ND. La octava columna indica el número de antenas de transmisión requeridas para cada configuración, y la novena columna indica el número de antenas de recepción requeridas para cada configuración.
25 Tabla 1
Configuración
Número de flujos de símbolos de datos ND Número de flujos de símbolos codificados NC Flujo de símbolos de datos Flujo de símbolos codificados Símbolo codificado (t = 1) s1 Símbolo codificado (t = 2) s2 Número de antenas TX requeridas NT Número de antenas RX requeridas NR
1x2
1 2 1 1 sa sb * NT ≥ 2 NR ≥ 1
2
sb -sa *
2 x 3
2 3 1 1 sa sb * NT ≥ 3 NR ≥ 2
2
sb -sa *
2
3 sc sd *
2x4
2 4 1 1 sa sb * NT ≥ 4 NR ≥ 2
2
sb -sa *
2
3 sc sd *
4
sd -sc *
3x4
3 4 1 1 sa sb * NT ≥ 4 NR ≥ 3
2
sb -sa *
2
3 sc sd *
3
4 se sf *
Tal y como se muestra en la Tabla 1, un flujo de símbolos de datos puede ser enviado como dos flujos de símbolos codificados con STTD o un flujo de símbolos codificados sin STTD. Para la realización mostrada en la Tabla 1, para
30 cada flujo de símbolos de datos enviado sin STTD, el símbolo de datos enviado en el segundo período de símbolos (t = 2) se conjuga para que coincida con la conjugación que se lleva a cabo en los flujos de símbolos de datos enviados con STTD.
Para la configuración 1 × 2, un flujo de símbolos de datos se codifica STTD para generar dos flujos de símbolos 35 codificados. Para cada intervalo de 2 símbolos, los vectores s1 = [ sa sb]T y s2 = [ sb*-sa* ]T se generan con los
5
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Claims (1)

  1. imagen1
    imagen2
ES05794004.1T 2004-09-03 2005-09-02 Ensanchado espacial con esquemas de diversidad de transmisión espacio-tiempo y espacio-frecuencia para un sistema de comunicación inalámbrica Active ES2527862T3 (es)

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US60737104P 2004-09-03 2004-09-03
US607371P 2004-09-03
US60822604P 2004-09-08 2004-09-08
US608226P 2004-09-08
PCT/US2005/031467 WO2006029050A2 (en) 2004-09-03 2005-09-02 Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system

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ES14180196.9T Active ES2628541T3 (es) 2004-09-03 2005-09-02 Ensanchado espacial con esquemas de diversidad de transmisión espacio-tiempo y espacio-frecuencia para un sistema de comunicación inalámbrica

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EP (2) EP2802087B1 (es)
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KR (2) KR100945957B1 (es)
AR (1) AR050795A1 (es)
CA (1) CA2579215C (es)
DK (1) DK1790089T3 (es)
ES (2) ES2527862T3 (es)
HU (2) HUE024175T2 (es)
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