BRPI0519274A2 - aparelho de comunicaÇço sem fio e mÉtodo de comunicaÇço sem fio - Google Patents

aparelho de comunicaÇço sem fio e mÉtodo de comunicaÇço sem fio

Info

Publication number
BRPI0519274A2
BRPI0519274A2 BRPI0519274-9A BRPI0519274A BRPI0519274A2 BR PI0519274 A2 BRPI0519274 A2 BR PI0519274A2 BR PI0519274 A BRPI0519274 A BR PI0519274A BR PI0519274 A2 BRPI0519274 A2 BR PI0519274A2
Authority
BR
Brazil
Prior art keywords
wireless communication
data symbols
communication method
data
channel estimation
Prior art date
Application number
BRPI0519274-9A
Other languages
English (en)
Inventor
Masaru Fukuoka
Daichi Imamura
Sadaki Futagi
Tomohiro Imai
Original Assignee
Matsushita Electric Industrial 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of BRPI0519274A2 publication Critical patent/BRPI0519274A2/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
    • 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
    • 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
    • H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
    • 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
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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) or 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
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • 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

Landscapes

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

Abstract

APARELHO DE COMUNICAÇçO SEM FIO E MÉTODO DE COMUNICAÇçO SEM FIO. A presente invenção refere-se a um método de comunicação sem fio de sistema de repetição e similar para garantir que, quando os mesmos simbolos de dados forem combinados, um ganho de diversidade seja obtido. Em uma etapa (ST 420), uma parte de posicionamento de símbolo de dados (105) decide locais de destino de respectivos simbolos de dados re- plicados (S~ 1~ a S~ 4~), de modo que os mesmos simbolos de dados não sejam postos em números de local de destino (7, 8) de simbolos de dados que exibem precisões ruins de estimativa de canal. Em uma etapa (ST 430), a parte de posicionamento de símbolo de dados (105) posiciona, de acordo com a decisão na etapa precedente (ST 420), os quatro simbolos de dados (S~ 1~ a S~ 4~), os quais são recebidos de uma parte de repetição (102), em um quadro recebido a partir de uma parte de predição de erro de estimativa de canal (104).
BRPI0519274-9A 2004-12-28 2005-12-26 aparelho de comunicaÇço sem fio e mÉtodo de comunicaÇço sem fio BRPI0519274A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004381888 2004-12-28
PCT/JP2005/023805 WO2006070754A1 (ja) 2004-12-28 2005-12-26 無線通信装置及び無線通信方法

Publications (1)

Publication Number Publication Date
BRPI0519274A2 true BRPI0519274A2 (pt) 2009-01-06

Family

ID=36614871

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0519274-9A BRPI0519274A2 (pt) 2004-12-28 2005-12-26 aparelho de comunicaÇço sem fio e mÉtodo de comunicaÇço sem fio

Country Status (5)

Country Link
US (1) US7729443B2 (pt)
JP (1) JP4671971B2 (pt)
CN (1) CN101091340A (pt)
BR (1) BRPI0519274A2 (pt)
WO (1) WO2006070754A1 (pt)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9312929B2 (en) 2004-04-02 2016-04-12 Rearden, Llc System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)
US9819403B2 (en) * 2004-04-02 2017-11-14 Rearden, Llc System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client
US10985811B2 (en) 2004-04-02 2021-04-20 Rearden, Llc System and method for distributed antenna wireless communications
US8654815B1 (en) 2004-04-02 2014-02-18 Rearden, Llc System and method for distributed antenna wireless communications
US9826537B2 (en) * 2004-04-02 2017-11-21 Rearden, Llc System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters
US8160121B2 (en) * 2007-08-20 2012-04-17 Rearden, Llc System and method for distributed input-distributed output wireless communications
US7633994B2 (en) 2004-07-30 2009-12-15 Rearden, LLC. System and method for distributed input-distributed output wireless communications
US8571086B2 (en) * 2004-04-02 2013-10-29 Rearden, Llc System and method for DIDO precoding interpolation in multicarrier systems
US10187133B2 (en) * 2004-04-02 2019-01-22 Rearden, Llc System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network
US10277290B2 (en) 2004-04-02 2019-04-30 Rearden, Llc Systems and methods to exploit areas of coherence in wireless systems
US8170081B2 (en) 2004-04-02 2012-05-01 Rearden, LLC. System and method for adjusting DIDO interference cancellation based on signal strength measurements
US10200094B2 (en) 2004-04-02 2019-02-05 Rearden, Llc Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems
US10425134B2 (en) 2004-04-02 2019-09-24 Rearden, Llc System and methods for planned evolution and obsolescence of multiuser spectrum
US8542763B2 (en) * 2004-04-02 2013-09-24 Rearden, Llc Systems and methods to coordinate transmissions in distributed wireless systems via user clustering
US9685997B2 (en) 2007-08-20 2017-06-20 Rearden, Llc Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems
CN101371251A (zh) * 2005-12-28 2009-02-18 意大利电信股份公司 通信系统中用于信道估计的插值方法及相关设备
JP4929895B2 (ja) * 2006-07-24 2012-05-09 富士通株式会社 送信装置及びサブフレームの作成方法
US8989155B2 (en) 2007-08-20 2015-03-24 Rearden, Llc Systems and methods for wireless backhaul in distributed-input distributed-output wireless systems
JP4545806B2 (ja) * 2008-02-29 2010-09-15 富士通株式会社 通信装置および配置決定方法
EP2267918A1 (en) * 2008-04-18 2010-12-29 Sharp Kabushiki Kaisha Receiver and communication system
JP4898755B2 (ja) * 2008-09-29 2012-03-21 京セラ株式会社 伝搬路予測システム、無線通信装置および伝搬路予測方法
US11190947B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for concurrent spectrum usage within actively used spectrum
US10194346B2 (en) 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US11189917B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
CN104919734B (zh) * 2012-11-30 2018-07-31 Lg 电子株式会社 在支持超高频带的无线接入系统中减轻多普勒展宽的方法和设备
US9680681B2 (en) 2013-03-04 2017-06-13 Mitsubishi Electric Corporation Transmission apparatus, reception apparatus, and communication system
US10488535B2 (en) 2013-03-12 2019-11-26 Rearden, Llc Apparatus and method for capturing still images and video using diffraction coded imaging techniques
US9973246B2 (en) 2013-03-12 2018-05-15 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US10164698B2 (en) 2013-03-12 2018-12-25 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
US9923657B2 (en) 2013-03-12 2018-03-20 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
EP2975790B1 (en) 2013-03-13 2019-02-20 Mitsubishi Electric Corporation Transmission device, reception device and communication system
RU2767777C2 (ru) 2013-03-15 2022-03-21 Риарден, Ллк Системы и способы радиочастотной калибровки с использованием принципа взаимности каналов в беспроводной связи с распределенным входом - распределенным выходом
KR20150044379A (ko) * 2013-10-16 2015-04-24 삼성전자주식회사 다중안테나 다중사용자 무선 통신시스템을 위한 확률적 송수신 방법 및 장치
US9762995B2 (en) 2013-10-16 2017-09-12 Samsung Electronics Co., Ltd. Stochastic transmission/reception method and apparatus for MU-MIMO scheme in MIMO radio communication system
US9621238B2 (en) * 2015-04-07 2017-04-11 Newracom, Inc. Apparatus and method for sounding wireless channel
US10129178B1 (en) * 2015-12-02 2018-11-13 L-3 Communications Corp. Combining and processing as a whole portions of a ordered segment of data elements split between two communications channels
CN108023700B (zh) 2016-11-04 2022-08-26 中兴通讯股份有限公司 一种导频参数的反馈、配置方法及装置、用户终端、基站
KR102403763B1 (ko) 2017-06-27 2022-05-30 삼성전자주식회사 무선 통신 시스템에서 명시적 채널 상태 정보 피드백을 위한 피드백 정보 설정하기 위한 방법

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US256755A (en) * 1882-04-18 Territory
US7947A (en) * 1851-02-25 Bellows fob musical instruments
JP2003032226A (ja) * 2001-07-17 2003-01-31 Matsushita Electric Ind Co Ltd 無線通信装置および無線通信方法
JP2003249907A (ja) * 2002-02-22 2003-09-05 Hitachi Kokusai Electric Inc Ｏｆｄｍ方式の伝送装置
JP3963737B2 (ja) * 2002-02-28 2007-08-22 松下電器産業株式会社 マルチキャリア信号生成方法、無線送信装置および無線受信装置
JP4290470B2 (ja) * 2002-05-09 2009-07-08 パナソニック株式会社 受信品質を推定する受信方法および受信装置と、この受信装置を利用した通信システム
DE10224833B4 (de) 2002-06-05 2005-04-14 Schott Ag Rohrhalbzeug und Verfahren zur Herstellung von Glasbehältnissen aus einem Rohrhalbzeug
JP4295578B2 (ja) * 2002-08-19 2009-07-15 パナソニック株式会社 無線通信装置及び無線通信方法
CN1833386B (zh) 2003-08-19 2011-04-06 松下电器产业株式会社 无线发送装置以及无线发送方法
WO2006070750A1 (ja) * 2004-12-27 2006-07-06 Matsushita Electric Industrial Co., Ltd. 無線送信装置、無線受信装置、無線送信方法および無線受信方法
RU2007144498A (ru) * 2005-05-30 2009-06-10 Мацусита Электрик Индастриал Ко., Лтд. (Jp) Устройство базовой станции в системе беспроводной связи и способ беспроводной связи в передаче на множестве несущих частот

Also Published As

Publication number Publication date
JPWO2006070754A1 (ja) 2008-06-12
US20070286310A1 (en) 2007-12-13
CN101091340A (zh) 2007-12-19
US7729443B2 (en) 2010-06-01
JP4671971B2 (ja) 2011-04-20
WO2006070754A1 (ja) 2006-07-06

Similar Documents

Publication Publication Date Title
BRPI0516838A (pt) redundáncia incremetal de multiportadoras para comunicações sem fio baseadas em pacote
BRPI0408551A (pt) porta de comunicação sem fio
BRPI0510208A (pt) método para executar transiente de conexão em um sistema de acesso sem fio de banda larga
BRPI0406645A (pt) Método para prover handoff de link direto em um sistema de comunicação sem fio com link direto ofdm e link reverso cdma
BRPI0511836A (pt) sistema e método para a otimização de transferência em um sistema de comunicação móvel
WO2008036311A3 (en) Direct link setup mechanisms for wireless lans
BRPI0416466A (pt) método para prover interoperabilidade de serviço de mensagem de multimìdia (mms) entre uma primeira portadora e uma segunda portadora, método e sistema para prover interoperabilidade de serviço de mensagem de multimìdia (mms) entre uma portadora iniciadora e uma portadora de destino
BR0309160A (pt) Handoff entre estações de diferentes revisões de protocolo em um sistema cdma
BRPI0509061A (pt) método e dispositivo sem fio para selecionar uma rede móvel terrestre pública
BRPI0419085A (pt) método para acesso de terminal móvel à lan sem fio com base em serviços de ponto de acesso e parámetros de serviço
BRPI0508179A (pt) sistema e método de transferência para minimizar retardo no serviço devido ao efeito pingue-pongue no sistema de comunicação de acesso sem fio de banda larga
BRPI0511869A (pt) soft handoff para link reverso em um sistema de comunicação sem fio com reuso em freqüência
BR0308329A (pt) Método e equipamento para handoff em um sistema de comunicação que suporta múltiplos casos de serviço
NO20065211L (no) Multibaerebolgekommunikasjon
BRPI0409848A (pt) método e equipamento para melhorar a troca de informação de interface aérea durante uma sessão de dados de pacote em repouso
BRPI0412095A (pt) método e sistema de rádio pacote móvel para tarifar uma conexão streaming
WO2008024696A3 (en) Method and system of message prioritization in a control system
BRPI0407686A (pt) equilização de sinais múltiplos recebidos para soft handoff em sistemas de comunicação sem fio
WO2007133432A3 (en) Method and apparatus for managing interference in a wireless communication system
BRPI0419228A (pt) método e aparelho para comunicações de dados por pacotes de enlace ascendente sem fio, e, sistema de comunicações
BRPI0508530A (pt) método para redução de baixo desempenho de acesso a meio em uma rede sem fio
TW200715066A (en) Lithographic method
BR0316012A (pt) Controlador hìbrido, sistema de comunicação de dados sem fio, estação sem fio, e, método de suportar avanços de qualidade de serviço
BRPI0410800A (pt) método e aparelho para aprimorar a qualidade de áudio para voz digitalizada transmitida por um canal que emprega a diversidade de freqüência
AU2003289427A1 (en) Aberration measuring method, exposure method and exposure system

Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2160 DE 29/05/2012.