BRPI0608435A2 - sistema de comunicação sem fio - Google Patents

sistema de comunicação sem fio

Info

Publication number
BRPI0608435A2
BRPI0608435A2 BRPI0608435-4A BRPI0608435A BRPI0608435A2 BR PI0608435 A2 BRPI0608435 A2 BR PI0608435A2 BR PI0608435 A BRPI0608435 A BR PI0608435A BR PI0608435 A2 BRPI0608435 A2 BR PI0608435A2
Authority
BR
Brazil
Prior art keywords
repeat
wireless communication
repetition
communication system
quality
Prior art date
Application number
BRPI0608435-4A
Other languages
English (en)
Inventor
Tomohiro Imai
Ayako Horiuchi
Akihiko Nishio
Kenichi Kuri
Hiroaki Morino
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 BRPI0608435A2 publication Critical patent/BRPI0608435A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

SISTEMA DE COMUNICAçãO SEM FIO. A presente invenção refere-se a um sistema de comunicação sem fio, permitindo comunicação por múltiplos saltos, ao mesmo tempo em que se mantém a produtividade do sistema e se impede a degradação da produtividade do usuário. No sistema, uma BS (estação-base) determina o método de repetição (se uma RS realiza repetição de reprodução ou repetição de não reprodução) da RS (estação repetidora) e o MCS de comunicação por múltiplos saltos, de acordo com a qualidade de recepção (a qualidade da linha entre uma MS2, a RS e a BS) do piloto para repetição não-regenerativa, a qualidade de recepção (a qualidade da linha entre a MS2 e a RS) medida na RS. O resultado da determinação é transmitido como informação de repetição para a RS e para a MS2 (uma estação móvel (2)) através da RS. A MS2 codifica e modula os dados de enlace superior com o MCS baseado na informação de repetição e transmite os dados para a RS. A RS retransmite os dados de enlace superior, enquanto seleciona a repetição não reprodutora ou repetição reprodutora, de acordo com a informação de repetição.
BRPI0608435-4A 2005-03-14 2006-03-13 sistema de comunicação sem fio BRPI0608435A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005071775 2005-03-14
PCT/JP2006/304901 WO2006098273A1 (ja) 2005-03-14 2006-03-13 無線通信システム

Publications (1)

Publication Number Publication Date
BRPI0608435A2 true BRPI0608435A2 (pt) 2009-12-29

Family

ID=36991615

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0608435-4A BRPI0608435A2 (pt) 2005-03-14 2006-03-13 sistema de comunicação sem fio

Country Status (6)

Country Link
US (4) US7912423B2 (pt)
EP (2) EP2541803B1 (pt)
JP (1) JP4657290B2 (pt)
CN (1) CN101142768B (pt)
BR (1) BRPI0608435A2 (pt)
WO (1) WO2006098273A1 (pt)

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Also Published As

Publication number Publication date
EP1852986A1 (en) 2007-11-07
WO2006098273A1 (ja) 2006-09-21
EP1852986A4 (en) 2010-05-26
EP2541803A1 (en) 2013-01-02
JP4657290B2 (ja) 2011-03-23
CN101142768A (zh) 2008-03-12
JPWO2006098273A1 (ja) 2008-08-21
USRE45125E1 (en) 2014-09-09
CN101142768B (zh) 2014-07-30
EP2541803B1 (en) 2015-01-21
US7912423B2 (en) 2011-03-22
EP1852986B1 (en) 2013-01-16
WO2006098273A9 (ja) 2007-10-25
USRE44200E1 (en) 2013-05-07
US20090227201A1 (en) 2009-09-10
USRE45171E1 (en) 2014-09-30

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