BR0210087A - Processo para otimizar comunicação para sistema de trasmissão digital ofdm multi-usuário por rede elétrica - Google Patents

Processo para otimizar comunicação para sistema de trasmissão digital ofdm multi-usuário por rede elétrica

Info

Publication number
BR0210087A
BR0210087A BR0210087-8A BR0210087A BR0210087A BR 0210087 A BR0210087 A BR 0210087A BR 0210087 A BR0210087 A BR 0210087A BR 0210087 A BR0210087 A BR 0210087A
Authority
BR
Brazil
Prior art keywords
communication
transmission
user
equipment
transmission system
Prior art date
Application number
BR0210087-8A
Other languages
English (en)
Inventor
Jorge Vicente Blasco Claret
Juan Carlos Riveiro Insua
Nils Hakan Fouren
Feliciano Gomez Martinez
Luis Manuel Torres Canton
Aitor Garcia San Jose
Francisco Jose Blasco Abril
Carlos Pardo Vidal
Agustin Badenes Corella
Diego Arlandis Malonda
Angel Ramiro Manzano
Francisco Javier Jime Marquina
Original Assignee
Dise O De Sist S En Silicio S
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 Dise O De Sist S En Silicio S filed Critical Dise O De Sist S En Silicio S
Publication of BR0210087A publication Critical patent/BR0210087A/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
    • H04L5/0058—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
    • 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
    • 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
    • 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
    • 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
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • 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
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • 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
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

"PROCESSO PARA OTIMIZAR COMUNICAçãO PARA SISTEMA DE TRANSMISSãO DIGITAL OFDM MULTI-USUáRIO POR REDE ELéTRICA". A presente invenção se relaciona a um método de otimização de comunicação para sistemas de transmissão digital OFDM multi-usuário por rede elétrica. Os receptores do equipamento (1, 2) monitoram a qualidade da comunicação e estimam a relação sinal:ruído (S:R) dos portadores de canal de fluxo ascendente e canal de fluxo descendente. As peças dos equipamentos de usuário (2) realizam a citada vigilância independentemente de o citado equipamento ser ou não o recipiente da transmissão. o modo de transmissão ótimo é selecionado usando a citada vigilância que consiste em modificar, pacote a pacote, o número de bits per portador, a redundância introduzida pelos códigos de correção/detecção de erro gerados por FEC, o código FEC efetivo e/ou o modo de transmissão. Desta forma, a rede pode ser dividida otimamente em termos de freq³ência e tempo e a capacidade de transmissão de múltiplas peças do equipamento de usuário pode ser maximizada. A invenção é adequada para comunicação bi-direcional, ponto a multiponto, pela rede elétrica.
BR0210087-8A 2001-05-25 2002-05-23 Processo para otimizar comunicação para sistema de trasmissão digital ofdm multi-usuário por rede elétrica BR0210087A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200101216A ES2188373B1 (es) 2001-05-25 2001-05-25 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica.
PCT/ES2002/000245 WO2002095978A1 (es) 2001-05-25 2002-05-23 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica

Publications (1)

Publication Number Publication Date
BR0210087A true BR0210087A (pt) 2004-08-17

Family

ID=8497859

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0210087-8A BR0210087A (pt) 2001-05-25 2002-05-23 Processo para otimizar comunicação para sistema de trasmissão digital ofdm multi-usuário por rede elétrica

Country Status (12)

Country Link
US (1) US20040151108A1 (pt)
EP (1) EP1398885A1 (pt)
JP (1) JP2004528782A (pt)
KR (1) KR100685686B1 (pt)
CN (1) CN1299439C (pt)
BR (1) BR0210087A (pt)
CA (1) CA2448453A1 (pt)
EA (1) EA007364B1 (pt)
ES (1) ES2188373B1 (pt)
IL (1) IL158847A0 (pt)
MX (1) MXPA03010656A (pt)
WO (1) WO2002095978A1 (pt)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
KR100606129B1 (ko) 2003-04-30 2006-07-28 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 채널 품질 측정 및보고 방법
EP1649654B1 (en) 2003-07-25 2012-12-05 Panasonic Corporation Apparatus and method for multicarrier transmission/reception with transmission quality evaluation
US7903538B2 (en) * 2003-08-06 2011-03-08 Intel Corporation Technique to select transmission parameters
JP4356392B2 (ja) * 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
US20050063422A1 (en) * 2003-09-19 2005-03-24 Sashi Lazar Communication protocol over power line communication networks
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7730469B1 (en) * 2004-05-04 2010-06-01 Oracle America, Inc. Method and system for code optimization
US7822124B1 (en) * 2004-07-02 2010-10-26 Ikanos Communications Inc. Method and apparatus for adaptive iterative decision feedback control coding in modems
JP5052742B2 (ja) * 2004-07-22 2012-10-17 パナソニック株式会社 送信装置及びそれを用いた通信システム
BRPI0514172A (pt) * 2004-08-06 2008-06-03 Matsushita Electric Ind Co Ltd aparelho de transmissão de rádio e método de transmissão de rádio em comunicação com múltiplas portadoras
KR100713436B1 (ko) 2004-10-28 2007-05-07 삼성전자주식회사 통신 시스템에서 ｃｉｎｒ 추정 장치 및 방법
US8126065B2 (en) * 2005-03-23 2012-02-28 Sony Corporation Automatic power adjustment in powerline home network
DE502005010006D1 (de) * 2005-05-04 2010-09-09 Nokia Siemens Networks Gmbh Verfahren zur Codierung von Datenblöcken
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US7613260B2 (en) 2005-11-21 2009-11-03 Provigent Ltd Modem control using cross-polarization interference estimation
US7664955B2 (en) 2006-03-07 2010-02-16 Atheros Communications, Inc. Establishing shared information in a network
US7796708B2 (en) * 2006-03-29 2010-09-14 Provigent Ltd. Adaptive receiver loops with weighted decision-directed error
US7634016B2 (en) * 2006-04-25 2009-12-15 Microsoft Corporation Variable OFDM subchannel coding and modulation
US7933344B2 (en) * 2006-04-25 2011-04-26 Mircosoft Corporation OFDMA based on cognitive radio
US8189621B2 (en) 2006-05-12 2012-05-29 Microsoft Corporation Stack signaling to application with lack of requested bandwidth
KR100768327B1 (ko) * 2006-05-23 2007-10-17 인하대학교 산학협력단 다중 반송파 신호를 사용하는 시스템의 cinr 추정장치 및 그 방법
US7643512B2 (en) 2006-06-29 2010-01-05 Provigent Ltd. Cascaded links with adaptive coding and modulation
KR100750740B1 (ko) 2006-08-17 2007-08-22 삼성전자주식회사 수신성능이 개선된 다중반송파 수신기 및 그 신호처리방법
US8099763B2 (en) * 2006-08-25 2012-01-17 Cisco Technology, Inc. Apparatus and method for range-confined communications
WO2008026039A2 (en) * 2006-08-28 2008-03-06 Nokia Corporation Dividing resource blocks for data and harq retransmissions
US7839952B2 (en) 2006-12-05 2010-11-23 Provigent Ltd Data rate coordination in protected variable-rate links
US8144793B2 (en) 2006-12-12 2012-03-27 Microsoft Corporation Cognitive multi-user OFDMA
US7720136B2 (en) 2006-12-26 2010-05-18 Provigent Ltd Adaptive coding and modulation based on link performance prediction
US7929623B2 (en) 2007-03-30 2011-04-19 Microsoft Corporation FEC in cognitive multi-user OFDMA
US8315574B2 (en) 2007-04-13 2012-11-20 Broadcom Corporation Management of variable-rate communication links
US7821938B2 (en) * 2007-04-20 2010-10-26 Provigent Ltd. Adaptive coding and modulation for synchronous connections
US7970085B2 (en) * 2007-05-08 2011-06-28 Microsoft Corporation OFDM transmission and reception for non-OFDMA signals
US8001445B2 (en) * 2007-08-13 2011-08-16 Provigent Ltd. Protected communication link with improved protection indication
US8040985B2 (en) 2007-10-09 2011-10-18 Provigent Ltd Decoding of forward error correction codes in the presence of phase noise
ES2335634B1 (es) * 2008-01-24 2011-02-10 Vicente Diaz Fuente Metodo y aparato de codificacion y decodificacion para la reduccion de las interferencias en sistemas de transmision de señales simultaneasy usuarios multiples.
US8374130B2 (en) 2008-01-25 2013-02-12 Microsoft Corporation Orthogonal frequency division multiple access with carrier sense
ATE519281T1 (de) * 2008-06-16 2011-08-15 Alcatel Lucent Vorrichtung und zugehöriges verfahren zur übersprechnungbeurteilung
WO2010011500A1 (en) * 2008-07-25 2010-01-28 Smith International, Inc. Pdc bit having split blades
US8855087B2 (en) * 2008-12-18 2014-10-07 Microsoft Corporation Wireless access point supporting control by multiple applications
KR20100073992A (ko) 2008-12-23 2010-07-01 엘지전자 주식회사 반송파 집성 환경에서의 상향링크 전송
US8369435B2 (en) * 2009-06-17 2013-02-05 Intersil Americas Inc. Frame structure for a QAM system
US8488514B2 (en) * 2009-10-02 2013-07-16 Research In Motion Limited Relay backhaul link quality considerations for mobility procedures
US8564522B2 (en) * 2010-03-31 2013-10-22 Apple Inc. Reduced-power communications within an electronic display
CN103001732B (zh) * 2011-09-19 2017-04-05 北京邮电大学 传输模式选择方法、装置及移动终端
US9338580B2 (en) 2011-10-21 2016-05-10 Qualcomm Incorporated Method and apparatus for packet loss rate-based codec adaptation
US10764532B2 (en) * 2012-10-30 2020-09-01 Viavi Solutions Inc. Method and system for locating ingress utilizing customer premises equipment
GB2514623A (en) * 2013-05-31 2014-12-03 Nordic Semiconductor Asa Radio data packets
WO2015189898A1 (ja) * 2014-06-09 2015-12-17 日立オートモティブシステムズ株式会社 電池システム
CN112566307B (zh) * 2019-09-10 2022-11-04 酷矽半导体科技(上海)有限公司 安全显示***及安全显示方法
KR102360841B1 (ko) * 2020-09-24 2022-02-11 (주)메티스 Tlc를 이용한 승강기 통신 시스템
CN112104397B (zh) * 2020-11-23 2021-03-23 国网江西省电力有限公司经济技术研究院 一种mimo电力线通信数据传输方法及装置
CN113992287B (zh) * 2021-10-26 2024-05-24 封开低频时码授时台 一种低频时码授时信号载波频率选择方法及***
CN114268974B (zh) * 2021-12-19 2023-08-29 广东电力通信科技有限公司 一种融合230m无线通信模组与电力载波的通信质量优化方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5128969A (en) * 1989-08-30 1992-07-07 Baghdady Elie J Method and apparatus for diversity reception
US6313738B1 (en) * 1997-06-09 2001-11-06 At&T Corp. Adaptive noise cancellation system
GB9827601D0 (en) * 1998-12-15 1999-02-10 Northern Telecom Ltd A power line communications system and method of operation thereof
WO2000038402A1 (en) * 1998-12-23 2000-06-29 Enikia Llc Power line communication system for local area networks
US6236687B1 (en) * 1999-02-26 2001-05-22 Trw Inc. Decision directed phase locked loop (DD-PLL) for use with short block codes in digital communication systems
JP3285850B2 (ja) * 1999-09-17 2002-05-27 三菱電機株式会社 通信方法および通信装置
US6397368B1 (en) * 1999-12-06 2002-05-28 Intellon Corporation Forward error correction with channel adaptation
US7450604B2 (en) * 2002-04-20 2008-11-11 Conexant Systems, Inc. Method and apparatus for establishing circuit connections over local area networks with frequency selective impairments

Also Published As

Publication number Publication date
CN1299439C (zh) 2007-02-07
ES2188373B1 (es) 2004-10-16
JP2004528782A (ja) 2004-09-16
WO2002095978A1 (es) 2002-11-28
ES2188373A1 (es) 2003-06-16
KR100685686B1 (ko) 2007-02-23
IL158847A0 (en) 2004-05-12
CN1535507A (zh) 2004-10-06
EP1398885A1 (en) 2004-03-17
MXPA03010656A (es) 2005-03-07
EA200301175A1 (ru) 2004-08-26
EA007364B1 (ru) 2006-10-27
CA2448453A1 (en) 2002-11-28
KR20040008192A (ko) 2004-01-28
US20040151108A1 (en) 2004-08-05

Similar Documents

Publication Publication Date Title
BR0210087A (pt) Processo para otimizar comunicação para sistema de trasmissão digital ofdm multi-usuário por rede elétrica
CA2308973C (en) Soft selection combining based on successive erasures of frequency band components in a communication system
BRPI0411173A (pt) método de entrega mole e mais mole em redes de múltiplo acesso por divisão de códigos duplex por divisão de tempo (tdd-cdma)
BR0210417A (pt) Método e equipamento para processamento de dados para transmissão em um sistema de comunicação de múltiplos canais usando inversão seletiva de canal
FR2881590B1 (fr) Procede de communication numerique par paquets a travers un canal de transmission partage par une pluralite d'utilisateurs
BR0009547A (pt) Estimativa de canal em um sistema de comunicação sem fio cdma
UA92306C2 (ru) Многоканальная передача и прием с блоковым кодированием в системе связи
PL186141B1 (pl) Sposób wytwarzania rozkazów sterujących mocą i stacja ruchoma do wytwarzania rozkazów sterujących mocą
GB2364206B (en) Transmission procedures
WO2002015420A3 (en) Discontinuous reception for user equipment
ATE421234T1 (de) Verfahren und vorrichtung zur paketdatenübertragung
EP0892518A3 (en) Methods and apparatus for packetizing data for transmission through an erasure broadcast channel
BR9915122A (pt) Método e aparelho para prover transmissões de alta qualidade em um sistema de telecomunicações
CN1134119C (zh) 一种用于在码分多址***中改进提取的方法
WO2003107143A3 (en) BROADBAND DOWNLOAD OF LARGE CONTENT
AU2002358656A1 (en) Method and device for broadcast in point-to-point packet networks
AU3150501A (en) Radio path and a method for operating same
ATE451802T1 (de) Echtzeit-kontrollmechanismus für multi-raten datenübertragungen in drahtlosen netzen
HK1055857A1 (en) Method and apparatus for recovery of particular bits of received frame
NO20050962L (no) Fremgangsmate, system og kilde for implementering av flerbruker oppkobling
CY1107064T1 (el) Μια μεθοδος για την μεταδοση χρησιμων ψηφιακων δεδομενων
EP1109343A3 (en) Link adaptation algorithm for packet based radio system
DE602004013067D1 (de) Verfahren und System zur Verbindungsanpassung
EP1195935A4 (en) OPTICAL TRANSMISSION SYSTEM, FEC MULTIPLEXIER, FEC MULTIPLEXIER / TRENNER AND PROCEDURE FOR ERROR CORRECTION
CN102487315A (zh) 多源多中继协作通信方法、通信设备及协作通信***

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 7A., E 8A., 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 2060 DE 29/06/2010.