BRPI0517688A - transmissor de rádio e método de inserção de sinal piloto - Google Patents

transmissor de rádio e método de inserção de sinal piloto

Info

Publication number
BRPI0517688A
BRPI0517688A BRPI0517688-3A BRPI0517688A BRPI0517688A BR PI0517688 A BRPI0517688 A BR PI0517688A BR PI0517688 A BRPI0517688 A BR PI0517688A BR PI0517688 A BRPI0517688 A BR PI0517688A
Authority
BR
Brazil
Prior art keywords
pilot signal
radio transmitter
input method
signal input
signal
Prior art date
Application number
BRPI0517688-3A
Other languages
English (en)
Inventor
Isamu Yoshii
Masaru Fukuoka
Christian Wengerter
Akihiko Nishio
Kenichi Miyoshi
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 BRPI0517688A publication Critical patent/BRPI0517688A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • 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
    • 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
    • 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
    • H04L5/0048—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
    • 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
    • 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
    • H04L5/0091—Signaling for the administration of the divided path

Abstract

TRANSMISSOR DE RADIO E MéTODO DE INSERçãO DE SINAL PILOTO. A presente invenção refere-se a um transmissor de rádio e um método de inserção de sinal piloto que são providos para melhoria do rendimento. No transmissor de rádio, uma parte de decisão de MCS (106) seleciona um de uma pluralidade de sistemas de modulação. Uma parte de geração de informação (108) decide uma posição de inserção de um sinal piloto correspondente ao sistema de modulação selecionado. Uma parte de modulação (116) modula um sinal de dados pelo sistema de modulação selecionado. Uma parte de arranjo de sinal (118) insere o sinal piloto no sinal de dados modulado e muda a posição de inserção do sinal piloto correspondente ao sistema de modulação selecionado. Uma parte de RF de transmissão (124) transmite o sinal de dados, onde o sinal piloto é inserido.
BRPI0517688-3A 2004-11-08 2005-11-07 transmissor de rádio e método de inserção de sinal piloto BRPI0517688A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004323868 2004-11-08
PCT/JP2005/020379 WO2006049282A1 (ja) 2004-11-08 2005-11-07 無線送信装置およびパイロット信号挿入方法

Publications (1)

Publication Number Publication Date
BRPI0517688A true BRPI0517688A (pt) 2008-10-14

Family

ID=36319280

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0517688-3A BRPI0517688A (pt) 2004-11-08 2005-11-07 transmissor de rádio e método de inserção de sinal piloto

Country Status (7)

Country Link
US (1) US20080107158A1 (pt)
EP (1) EP1804391A1 (pt)
JP (1) JPWO2006049282A1 (pt)
KR (1) KR20070084033A (pt)
CN (1) CN100578953C (pt)
BR (1) BRPI0517688A (pt)
WO (1) WO2006049282A1 (pt)

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JP4611881B2 (ja) * 2005-12-08 2011-01-12 シャープ株式会社 適応変調制御装置、送信機、受信機、及び、適応変調制御方法
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US8243850B2 (en) 2006-10-24 2012-08-14 Samsung Electronics Co., Ltd. Method and system for generating reference signals in a wireless communication system
EP2077634B1 (en) 2006-10-26 2016-02-24 Fujitsu Limited Radio base station apparatus, pilot transmitting method thereof and terminal apparatus
JP5159274B2 (ja) * 2006-11-30 2013-03-06 パナソニック株式会社 無線送信装置及び無線送信方法
JP4907721B2 (ja) * 2006-12-07 2012-04-04 インターデイジタル テクノロジー コーポレーション トレーニング信号および情報ビットを割り当てるための無線通信方法および装置
KR101360350B1 (ko) * 2007-08-21 2014-02-10 재단법인서울대학교산학협력재단 도플러 주파수를 이용한 링크 적응화 시스템 및 그 방법
WO2009087875A1 (ja) * 2008-01-07 2009-07-16 Mitsubishi Electric Corporation Ｍｉｍｏ通信システム
WO2010082319A1 (ja) * 2009-01-14 2010-07-22 富士通株式会社 装置、チャネル品質推定方法および送信方法
ES2637293T3 (es) 2009-03-18 2017-10-11 Electronics And Telecommunications Research Institute Método para señalizar patrones de subtramas de CSI-RS
CN101841358B (zh) 2009-03-20 2013-08-21 富士通株式会社 基站和移动台
CN101888636B (zh) * 2009-05-14 2013-10-02 电信科学技术研究院 下行测量导频的配置和检测方法和装置
US8565336B2 (en) 2011-02-08 2013-10-22 Electronics And Telecommunications Research Institute Data transmission apparatus and method, and data reconstitution apparatus and method
CN102739382A (zh) * 2011-03-25 2012-10-17 北京新岸线无线技术有限公司 无线通信系统中解调导频的调整方法及系统
CN103354478A (zh) 2011-03-31 2013-10-16 北京新岸线移动多媒体技术有限公司 一种用于实现链路自适应的方法、网络设备和终端设备
JP5327292B2 (ja) * 2011-08-29 2013-10-30 富士通株式会社 無線通信システム
EP2733900A1 (en) * 2012-11-19 2014-05-21 Sony Mobile Communications, Inc. Alignment of MIMO-OFDM transmissions between multiple antenna paths
US9444576B2 (en) * 2014-05-09 2016-09-13 Qualcomm Incorporated Updates to MU-MIMO rate adaptation algorithm
WO2016144061A1 (ko) * 2015-03-06 2016-09-15 한국전자통신연구원 부트스트랩 및 프리앰블을 이용한 방송 신호 프레임 생성 장치 및 방송 신호 프레임 생성 방법
CN105072061B (zh) * 2015-07-03 2019-04-19 魅族科技（中国）有限公司 无线局域网通信方法和设备
CN106559204B (zh) * 2015-09-29 2020-05-26 电信科学技术研究院 一种导频的配置方法及装置
KR101872110B1 (ko) * 2016-10-04 2018-07-31 한국산업기술대학교산학협력단 통신 시스템에서의 채널 추정 방법 및 장치
CN110177070B (zh) * 2019-05-28 2022-01-11 北京星网锐捷网络技术有限公司 信号解调方法及装置

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RU2181529C2 (ru) * 1998-05-13 2002-04-20 Самсунг Электроникс Ко., Лтд. Устройство и способ для подвижной станции для приема сигналов, переданных от базовой станции
JP2000004212A (ja) * 1998-06-12 2000-01-07 Matsushita Electric Ind Co Ltd 回線推定装置及び無線通信装置
US7027464B1 (en) * 1999-07-30 2006-04-11 Matsushita Electric Industrial Co., Ltd. OFDM signal transmission scheme, and OFDM signal transmitter/receiver
JP4284773B2 (ja) * 1999-09-07 2009-06-24 ソニー株式会社 送信装置、受信装置、通信システム、送信方法及び通信方法
JP3522619B2 (ja) * 2000-01-05 2004-04-26 株式会社エヌ・ティ・ティ・ドコモ マルチキャリアｃｄｍａ伝送システムにおける送信機
JP2001339758A (ja) * 2000-05-26 2001-12-07 Matsushita Electric Ind Co Ltd 無線基地局装置及び無線通信方法
JP3872950B2 (ja) * 2000-10-05 2007-01-24 株式会社東芝 周波数分割多重伝送信号受信装置
JP5079189B2 (ja) * 2001-04-13 2012-11-21 Ｋｄｄｉ株式会社 多ビームセルラ無線基地局、移動機及びスペクトラム拡散信号送信方法
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JP2003158499A (ja) * 2001-11-20 2003-05-30 Mitsubishi Electric Corp 通信方法および通信装置
JP4256158B2 (ja) * 2002-12-26 2009-04-22 パナソニック株式会社 無線通信装置及び無線通信方法
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KR100606105B1 (ko) * 2003-07-04 2006-07-28 삼성전자주식회사 다중 접속 방식을 사용하는 이동 통신 시스템의 셀 탐색장치 및 방법
KR100943624B1 (ko) * 2003-09-15 2010-02-24 삼성전자주식회사 직교 주파수 분할 다중 통신 시스템에서 동적 자원 할당장치 및 방법

Also Published As

Publication number Publication date
EP1804391A1 (en) 2007-07-04
WO2006049282A1 (ja) 2006-05-11
US20080107158A1 (en) 2008-05-08
JPWO2006049282A1 (ja) 2008-05-29
CN101048951A (zh) 2007-10-03
CN100578953C (zh) 2010-01-06
KR20070084033A (ko) 2007-08-24

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Legal Events

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

Free format text: REFERENTE AS 5A E 6A ANUIDADES.

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.