BRPI0512704A - método e sistema de envio - Google Patents

método e sistema de envio

Info

Publication number
BRPI0512704A
BRPI0512704A BRPI0512704-1A BRPI0512704A BRPI0512704A BR PI0512704 A BRPI0512704 A BR PI0512704A BR PI0512704 A BRPI0512704 A BR PI0512704A BR PI0512704 A BRPI0512704 A BR PI0512704A
Authority
BR
Brazil
Prior art keywords
selector
selects
acquisition unit
shipping method
monitoring
Prior art date
Application number
BRPI0512704-1A
Other languages
English (en)
Inventor
Seigo Nakao
Yasuhiro Tanaka
Nobuo Higashida
Original Assignee
Ntt Data Sanyo System Corp
Sanyo Electric Co
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
Priority claimed from JP2005180551A external-priority patent/JP4583254B2/ja
Application filed by Ntt Data Sanyo System Corp, Sanyo Electric Co filed Critical Ntt Data Sanyo System Corp
Publication of BRPI0512704A publication Critical patent/BRPI0512704A/pt
Publication of BRPI0512704B1 publication Critical patent/BRPI0512704B1/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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438—Negotiation of transmission parameters prior to communication
    • 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
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • 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
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • 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
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0079—Formats for control data

Landscapes

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

Abstract

MéTODO E SISTEMA DE ENVIO. A presente invenção refere-se a uma unidade de armazenamento armazena um sinal de preâmbulo definido em um sistema de legado e um sinal de preâmbulo definido em um sistema MIMO. Uma unidade de monitoração em um aparelho de transmissão monitora a existência de qualquer aparelho de comunicação o qual não seja compatível com o sistema MIMO, mas aceita o sistema de legado. Uma unidade de aquisição de características de sinal deriva as características de um canal de rádio entre o aparelho de transmissão e um aparelho de recepção. Um seletor seleciona um formato de pacote com base em um resultado de monitoração obtido pela unidade de monitoração. O seletor também seleciona onde posicionar LTS, com base nas características de canal sem fio pela unidade de aquisição de características de sinal.
BRPI0512704A 2004-06-28 2005-06-23 aparelho para transmissão de sinais BRPI0512704B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004189303 2004-06-28
JP2005180551A JP4583254B2 (ja) 2005-06-21 2005-06-21 送信方法および装置
PCT/JP2005/011563 WO2006001351A1 (ja) 2004-06-28 2005-06-23 送信方法および装置

Publications (2)

Publication Number Publication Date
BRPI0512704A true BRPI0512704A (pt) 2008-04-01
BRPI0512704B1 BRPI0512704B1 (pt) 2018-12-18

Family

ID=35505613

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0512704A BRPI0512704B1 (pt) 2004-06-28 2005-06-23 aparelho para transmissão de sinais

Country Status (8)

Country Link
US (3) US8265055B2 (pt)
EP (1) EP1768294B1 (pt)
KR (1) KR100887006B1 (pt)
CN (1) CN1977484B (pt)
BR (1) BRPI0512704B1 (pt)
RU (1) RU2383998C2 (pt)
TW (1) TWI279999B (pt)
WO (1) WO2006001351A1 (pt)

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US8259825B2 (en) * 2008-08-08 2012-09-04 Motorola Mobility, Inc. Mapping and signaling of common reference symbols for multiple antennas
US9252862B2 (en) 2008-09-17 2016-02-02 Qualcomm Incorporated MIMO preamble for initial access with an unknown number of transmit antennas
WO2010085722A1 (en) 2009-01-26 2010-07-29 Drexel University Systems and methods for selecting reconfigurable antennas in mimo systems
US9706599B1 (en) 2009-07-23 2017-07-11 Marvell International Ltd. Long wireless local area network (WLAN) packets with midambles
JP5576081B2 (ja) * 2009-09-28 2014-08-20 京セラ株式会社 無線通信システムおよび無線通信方法
US8891592B1 (en) * 2009-10-16 2014-11-18 Marvell International Ltd. Control physical layer (PHY) data unit
JP6143016B2 (ja) * 2011-06-15 2017-06-07 マーベル ワールド トレード リミテッド Ｗｌａｎに用いる低帯域幅ｐｈｙ
EP3155778B1 (en) 2014-06-11 2019-02-20 Marvell World Trade Ltd. Compressed ofdm symbols in a wireless communication system
WO2018174798A1 (en) * 2017-03-24 2018-09-27 Telefonaktiebolaget Lm Ericsson (Publ) Methods for multi-antenna transmission in vehicular communications
US10541796B2 (en) 2017-06-09 2020-01-21 Marvell World Trade Ltd. Packets with midambles having compressed OFDM symbols
WO2019060407A1 (en) 2017-09-22 2019-03-28 Marvell World Trade Ltd. DETERMINING THE NUMBER OF MIDAMBULES IN A PACKET

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JP3381580B2 (ja) 1996-11-22 2003-03-04 株式会社豊田中央研究所 アダプティブ通信装置
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GB2329796A (en) 1997-09-29 1999-03-31 Motorola Ltd Increased data rate by reduction of training data
KR20010043096A (ko) * 1998-04-29 2001-05-25 칼 하인쯔 호르닝어 송수신기, 기지국 시스템
JP4284769B2 (ja) 1999-08-11 2009-06-24 ソニー株式会社 マルチキャリア信号送信装置及びマルチキャリア信号受信装置
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US6785520B2 (en) 2002-03-01 2004-08-31 Cognio, Inc. System and method for antenna diversity using equal power joint maximal ratio combining
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US7916803B2 (en) 2003-04-10 2011-03-29 Qualcomm Incorporated Modified preamble structure for IEEE 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, MIMO or otherwise extended devices
US7039412B2 (en) * 2003-08-08 2006-05-02 Intel Corporation Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network
US7616698B2 (en) * 2003-11-04 2009-11-10 Atheros Communications, Inc. Multiple-input multiple output system and method
US20050169397A1 (en) * 2004-01-29 2005-08-04 Texas Instruments Incorporated Scalable data reception gain control for a multiple-input, multiple-output (MIMO) communications system
US7586881B2 (en) * 2004-02-13 2009-09-08 Broadcom Corporation MIMO wireless communication greenfield preamble formats
US7233773B2 (en) * 2004-02-13 2007-06-19 Broadcom Corporation Configuring a MIMO communication
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US7680150B2 (en) 2004-04-13 2010-03-16 Texas Instruments Incorporated Virtual clear channel avoidance (CCA) mechanism for wireless communications
US8081967B2 (en) 2004-04-26 2011-12-20 Intel Corporation Method to manage medium access for a mixed wireless network
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EP1768294B1 (en) * 2004-06-28 2015-02-18 Hera Wireless S.A. Apparatus for transmitting signals

Also Published As

Publication number Publication date
KR100887006B1 (ko) 2009-03-04
CN1977484B (zh) 2012-12-05
US8254361B2 (en) 2012-08-28
US20130022159A1 (en) 2013-01-24
RU2007103189A (ru) 2008-08-10
KR20070050427A (ko) 2007-05-15
EP1768294A4 (en) 2011-05-18
WO2006001351A1 (ja) 2006-01-05
US8817767B2 (en) 2014-08-26
TWI279999B (en) 2007-04-21
TW200618520A (en) 2006-06-01
EP1768294A1 (en) 2007-03-28
US20050286484A1 (en) 2005-12-29
US8265055B2 (en) 2012-09-11
EP1768294B1 (en) 2015-02-18
BRPI0512704B1 (pt) 2018-12-18
US20100246379A1 (en) 2010-09-30
CN1977484A (zh) 2007-06-06
RU2383998C2 (ru) 2010-03-10

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: SANYO ELECTRIC CO., LTD (JP) , SANYO INFORMATION T

Free format text: NOME ALTERADO DE: NTT DATA SANYO SYSTEM CORPORATION

B25A Requested transfer of rights approved

Owner name: SANYO ELECTRIC CO., LTD (JP)

Free format text: TRANSFERIDO DE: SANYO INFORMATION TECHNOLOGY SOLUTIONS CO., LTD.

B15K Others concerning applications: alteration of classification

Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. AS CLASSIFICACOES IPC ANTERIORES ERAM: H04J 15/00; H04J 11/00.

Ipc: H04L 5/14 (2006.01), H04L 1/00 (2006.01), H04L 1/0

Ipc: H04L 5/14 (2006.01), H04L 1/00 (2006.01), H04L 1/0

B15K Others concerning applications: alteration of classification

Ipc: H04L 5/14 (2006.01), H04L 1/06 (2006.01), H04B 7/0

B06T Formal requirements before examination [chapter 6.20 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 18/12/2018, OBSERVADAS AS CONDICOES LEGAIS.