BRPI0414720A - codificação hierárquica com múltiplas antenas em um sistema de comunicação sem fio - Google Patents

codificação hierárquica com múltiplas antenas em um sistema de comunicação sem fio

Info

Publication number
BRPI0414720A
BRPI0414720A BRPI0414720-0A BRPI0414720A BRPI0414720A BR PI0414720 A BRPI0414720 A BR PI0414720A BR PI0414720 A BRPI0414720 A BR PI0414720A BR PI0414720 A BRPI0414720 A BR PI0414720A
Authority
BR
Brazil
Prior art keywords
symbol
communication system
stream
subflows
hierarchical coding
Prior art date
Application number
BRPI0414720-0A
Other languages
English (en)
Inventor
Ashok Mantravadi
Avneesh Agrawal
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BRPI0414720A publication Critical patent/BRPI0414720A/pt

Links

Classifications

    • 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
    • H04B7/0669—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 using different channel coding between antennas
    • 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
    • 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
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • 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
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes
    • 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
    • H04L1/0071—Use of interleaving
    • 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
    • H04L27/3488—Multiresolution systems
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0093—Point-to-multipoint

Abstract

"CODIFICAçãO HIERáRQUICA COM MúLTIPLAS ANTENAS EM UM SISTEMA DE COMUNICAçãO SEM FIO". São providas técnicas para realizar codificação hierárquica em um sistema de comunicação de múltiplas antenas (por exemplo, um sistema SIMO, MISO, ou MIMO). Em um transmissor, um fluxo base e um fluxo de aperfeiçoamento são codificados e modulados separadamente para obter primeiro e segundo fluxos de símbolos de dados, respectivamente. O primeiro fluxo de simbolos de dados é processado de acordo com um primeiro esquema de processamento espacial (por exemplo, um esquema de diversidade de transmissão ou de multiplexação espacial) para obter um primeiro conjunto de sub-fluxos de símbolos. O segundo fluxo de símbolos é processado de acordo com um segundo esquema de processamento espacial (por exemplo, diversidade de transmissão ou multiplexação espacial) para obter um segundo conjunto de sub-fluxos de símbolos. O primeiro conjunto de sub-fluxos de símbolos é combinado (por exemplo, utilizando multiplexação por divisão de tempo ou superposição) com o segundo conjunto de sub-fluxos de símbolos para obter múltiplos fluxos de símbolos de transmissão para transmissão a partir de múltiplas antenas transmissoras. Um receptor realiza processamento complementar para recuperar o fluxo base e o fluxo de aperfeiçoamento.
BRPI0414720-0A 2003-09-25 2004-09-27 codificação hierárquica com múltiplas antenas em um sistema de comunicação sem fio BRPI0414720A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50646603P 2003-09-25 2003-09-25
US10/791,314 US7724838B2 (en) 2003-09-25 2004-03-01 Hierarchical coding with multiple antennas in a wireless communication system
PCT/US2004/031828 WO2005032035A1 (en) 2003-09-25 2004-09-27 Hierarchical coding with multiple antennas in a wireless communication system

Publications (1)

Publication Number Publication Date
BRPI0414720A true BRPI0414720A (pt) 2006-11-21

Family

ID=34381243

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0414720-0A BRPI0414720A (pt) 2003-09-25 2004-09-27 codificação hierárquica com múltiplas antenas em um sistema de comunicação sem fio

Country Status (16)

Country Link
US (2) US7724838B2 (pt)
EP (2) EP1678866B1 (pt)
JP (1) JP4509116B2 (pt)
KR (1) KR100780578B1 (pt)
AR (1) AR045840A1 (pt)
AT (1) ATE474390T1 (pt)
AU (1) AU2004306131C1 (pt)
BR (1) BRPI0414720A (pt)
CA (1) CA2540026C (pt)
DE (1) DE602004028146D1 (pt)
ES (1) ES2347250T3 (pt)
IL (1) IL174515A (pt)
MX (1) MXPA06003330A (pt)
PL (1) PL1678866T3 (pt)
TW (1) TWI390873B (pt)
WO (1) WO2005032035A1 (pt)

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