BRPI0507202A - aparelho de transmissão / recepção e método de transmissão / recepção - Google Patents

aparelho de transmissão / recepção e método de transmissão / recepção

Info

Publication number
BRPI0507202A
BRPI0507202A BRPI0507202-6A BRPI0507202A BRPI0507202A BR PI0507202 A BRPI0507202 A BR PI0507202A BR PI0507202 A BRPI0507202 A BR PI0507202A BR PI0507202 A BRPI0507202 A BR PI0507202A
Authority
BR
Brazil
Prior art keywords
propagation path
transmission
frequency band
good
path state
Prior art date
Application number
BRPI0507202-6A
Other languages
English (en)
Inventor
Atsushi Matsumoto
Sadaki Futagi
Akihiro Nishio
Daichi Imamura
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BRPI0507202A publication Critical patent/BRPI0507202A/pt
Publication of BRPI0507202A8 publication Critical patent/BRPI0507202A8/pt
Publication of BRPI0507202B1 publication Critical patent/BRPI0507202B1/pt

Links

Classifications

    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

"APARELHO DE TRANSMISSãO / RECEPçãO E MéTODO DE TRANSMISSãO / RECEPçãO". A invenção refere-se a um aparelho de transmissão / recepção capaz de impedir a degradação da capacidade do sistema, aperfeiçoar o rendimento do sistema, e minimizar o consumo de energia de um aparelho. Neste aparelho uma seção de determinação de percurso de propagação (131) determina um estado de percurso de propagação em todas as regiões na banda de frequência utilizada de um sinal de multiportadora recebido com base nas informações de estimativa de percurso de propagação tal como um valor de estimativa de canal e similares calculados em uma seção de estimativa de percurso de propagação (126) e especifica uma região de frequência que tenha um bom estado de percurso de propagação da banda de frequência de OFDM utilizada. Mais especificamente, a banda de frequência utilizada está dividida em uma pluralidade de bandas de frequência (sub-bandas), cada uma compreendida de uma largura de banda predeterminada menor, e pela seleção de uma sub-banda que tenha um bom estado de percurso de propagação na seção de determinação de percurso de propagação (131), uma região de frequência que tenha um bom estado de percurso de propagação é especificada. Uma seção de transmissão (110) reporta as informações de sub-banda para uma estação de base.
BRPI0507202A 2004-01-29 2005-01-27 aparelho de transmissão / recepção e método de transmissão / recepção BRPI0507202B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004021198 2004-01-29
JP2005018149A JP4418377B2 (ja) 2004-01-29 2005-01-26 通信端末装置および基地局装置
PCT/JP2005/001103 WO2005074178A1 (ja) 2004-01-29 2005-01-27 送受信装置および送受信方法

Publications (3)

Publication Number Publication Date
BRPI0507202A true BRPI0507202A (pt) 2007-06-12
BRPI0507202A8 BRPI0507202A8 (pt) 2016-08-02
BRPI0507202B1 BRPI0507202B1 (pt) 2018-12-18

Family

ID=34829410

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507202A BRPI0507202B1 (pt) 2004-01-29 2005-01-27 aparelho de transmissão / recepção e método de transmissão / recepção

Country Status (7)

Country Link
US (1) US8064897B2 (pt)
EP (1) EP1705818A1 (pt)
JP (1) JP4418377B2 (pt)
KR (1) KR101065156B1 (pt)
CN (1) CN1914838B (pt)
BR (1) BRPI0507202B1 (pt)
WO (1) WO2005074178A1 (pt)

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JP4418377B2 (ja) 2010-02-17
BRPI0507202A8 (pt) 2016-08-02
US20070155323A1 (en) 2007-07-05
CN1914838B (zh) 2010-09-29
WO2005074178A1 (ja) 2005-08-11
EP1705818A1 (en) 2006-09-27
JP2005244958A (ja) 2005-09-08
CN1914838A (zh) 2007-02-14
KR101065156B1 (ko) 2011-09-16
BRPI0507202B1 (pt) 2018-12-18
US8064897B2 (en) 2011-11-22

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