BR0214312A - seleção de taxa para um sistema ofdm - Google Patents

seleção de taxa para um sistema ofdm

Info

Publication number
BR0214312A
BR0214312A BRPI0214312-7A BR0214312A BR0214312A BR 0214312 A BR0214312 A BR 0214312A BR 0214312 A BR0214312 A BR 0214312A BR 0214312 A BR0214312 A BR 0214312A
Authority
BR
Brazil
Prior art keywords
rate
specific
data rate
channel
measurement
Prior art date
Application number
BRPI0214312-7A
Other languages
English (en)
Other versions
BRPI0214312B1 (pt
Inventor
Tamer Kadous
Ahmad Jalali
Ivan Jesus Fernandez-Corbaton
Original Assignee
Qualcomm Inc
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 US09/991,039 external-priority patent/US7012883B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0214312A publication Critical patent/BR0214312A/pt
Publication of BRPI0214312B1 publication Critical patent/BRPI0214312B1/pt

Links

Classifications

    • 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
    • H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
    • H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
    • 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
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • 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
    • H04L5/0046—Determination of the number of bits transmitted on different sub-channels
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • 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
    • H04L1/0026—Transmission of channel quality 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) or DMT

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Artificial Intelligence (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Transceivers (AREA)
  • Communication Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

"SELEçãO DE TAXA PARA UM SISTEMA OFDM". A taxa de dados máxima que pode ser confiavelmente transmitida através de um dado canal de múltiplas trajetórias (não plano) usando transmissão OFDM é determinada com base em uma medida para um canal equivalente (plano). Para o dado canal de múltiplas trajetórias e uma taxa específica (a qual pode ser indicativa de uma taxa de dados, esquema de modulação e taxa de codificação específicos), a medida é inicialmente derivada a partir de uma taxa de dados equivalente e do esquema de modulação específico. A seguir é determinada uma SNR limite necessária para transmitir com confiança a taxa de dados específica usando-se o esquema de modulação e taxa de codificação específicos. A taxa específica é considerada como sendo suportada pelo canal de múltiplas trajetórias caso a medida seja maior ou igual à SNR limite. Uma transmissão incremental é usada para compensar erros na taxa de dados determinada.
BRPI0214312A 2001-11-21 2002-11-20 seleção de taxa para um sistema ofdm BRPI0214312B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/991,039 US7012883B2 (en) 2001-11-21 2001-11-21 Rate selection for an OFDM system
US10/086,838 US7020073B2 (en) 2001-11-21 2002-02-28 Rate selection for an OFDM system
PCT/US2002/037409 WO2003047198A2 (en) 2001-11-21 2002-11-20 Rate selection for an ofdm system

Publications (2)

Publication Number Publication Date
BR0214312A true BR0214312A (pt) 2006-05-23
BRPI0214312B1 BRPI0214312B1 (pt) 2016-07-12

Family

ID=26775199

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0214312A BRPI0214312B1 (pt) 2001-11-21 2002-11-20 seleção de taxa para um sistema ofdm

Country Status (6)

Country Link
EP (1) EP1454466B1 (pt)
JP (1) JP4308009B2 (pt)
CN (1) CN1615624B (pt)
AU (1) AU2002346470A1 (pt)
BR (1) BRPI0214312B1 (pt)
WO (1) WO2003047198A2 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7315577B2 (en) 2003-09-15 2008-01-01 Intel Corporation Multiple antenna systems and method using high-throughput space-frequency block codes
US7440510B2 (en) 2003-09-15 2008-10-21 Intel Corporation Multicarrier transmitter, multicarrier receiver, and methods for communicating multiple spatial signal streams
US7508748B2 (en) * 2003-10-24 2009-03-24 Qualcomm Incorporated Rate selection for a multi-carrier MIMO system
US7649833B2 (en) 2003-12-29 2010-01-19 Intel Corporation Multichannel orthogonal frequency division multiplexed receivers with antenna selection and maximum-ratio combining and associated methods
US7333556B2 (en) 2004-01-12 2008-02-19 Intel Corporation System and method for selecting data rates to provide uniform bit loading of subcarriers of a multicarrier communication channel
US7570953B2 (en) 2004-01-12 2009-08-04 Intel Corporation Multicarrier communication system and methods for link adaptation using uniform bit loading and subcarrier puncturing
US7623490B2 (en) * 2004-12-22 2009-11-24 Qualcomm Incorporated Systems and methods that utilize a capacity-based signal-to-noise ratio to predict and improve mobile communication
JP4824401B2 (ja) 2005-12-28 2011-11-30 株式会社エヌ・ティ・ティ・ドコモ 移動局装置および基地局装置並びに無線チャネル状況の通知方法
JP2010526477A (ja) 2007-05-03 2010-07-29 トムソン ライセンシング レートレス符号化システムのスループット及び誤りの性能を向上させる方法及び装置
JP4911780B2 (ja) * 2007-12-20 2012-04-04 シャープ株式会社 無線通信システム、受信装置及び受信方法
JP4903122B2 (ja) * 2007-12-20 2012-03-28 シャープ株式会社 無線通信システム、受信装置、受信方法
JP2009278543A (ja) * 2008-05-16 2009-11-26 Sony Corp 無線通信装置、無線通信方法、プログラム、および無線通信システム
US8848549B2 (en) * 2008-09-17 2014-09-30 Qualcomm Incorporated Optimizing throughput in a wireless communication system
CN102474374B (zh) * 2009-07-02 2016-09-07 日本电气株式会社 接收设备、接收方法及程序
US10243638B2 (en) * 2016-10-04 2019-03-26 At&T Intellectual Property I, L.P. Forward error correction code selection in wireless systems
US11664924B2 (en) * 2019-10-01 2023-05-30 Hughes Network Systems, Llc Efficient adaptive coding and modulation
CN114363965A (zh) * 2021-12-31 2022-04-15 展讯半导体(成都)有限公司 一种速率集合更新方法及其装置
US12199733B2 (en) 2022-12-30 2025-01-14 Hughes Network Systems, Llc Wireless communication modulation using electromagnetic polarization

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914933A (en) * 1996-03-08 1999-06-22 Lucent Technologies Inc. Clustered OFDM communication system
KR100226698B1 (ko) * 1996-12-28 1999-10-15 전주범 직교 주파수 분할 다중화 수신 시스템의 채널 등화 장치
US6175550B1 (en) * 1997-04-01 2001-01-16 Lucent Technologies, Inc. Orthogonal frequency division multiplexing system with dynamically scalable operating parameters and method thereof
US6167031A (en) * 1997-08-29 2000-12-26 Telefonaktiebolaget Lm Ericsson (Publ) Method for selecting a combination of modulation and channel coding schemes in a digital communication system
US6628673B1 (en) * 1999-12-29 2003-09-30 Atheros Communications, Inc. Scalable communication system using overlaid signals and multi-carrier frequency communication

Also Published As

Publication number Publication date
CN1615624B (zh) 2012-08-15
CN1615624A (zh) 2005-05-11
EP1454466B1 (en) 2018-02-28
AU2002346470A1 (en) 2003-06-10
BRPI0214312B1 (pt) 2016-07-12
JP4308009B2 (ja) 2009-08-05
WO2003047198A2 (en) 2003-06-05
JP2006501695A (ja) 2006-01-12
AU2002346470A8 (en) 2003-06-10
WO2003047198A3 (en) 2003-09-12
EP1454466A2 (en) 2004-09-08

Similar Documents

Publication Publication Date Title
BR0214310A (pt) seleção de taxa para um sistema ofdm
BR0214312A (pt) seleção de taxa para um sistema ofdm
BRPI0516632A (pt) correção de erros antecipada e adaptativa
BR0209640A (pt) Transmissão em sistema de comunicação multicanal utilizando controle de potência de canal seletivo
BR0311929A (pt) Controle de taxas para sistemas de comunicação múltiplos canais
BR0206801A (pt) Método e equipamento para determinação de localização usando uma estimativa grosseira de posição
DE60331829D1 (de) N eines arq-verfahrens
BR9910836A (pt) Dispositivo e método para gerar e distribuir sìmbolos codificados em sistema de comunicação cdma
BR9714249A (pt) Transmissor, processo e sistema de transmisão para transmitir sinais codificados através de um canal.
MX2009003041A (es) Codificacion para proteccion contra error optima para informacion ack/nack/pre/post de mimo.
DE602004018755D1 (de) Datenübertragung mit vorwärtsfehlerkorrekturinformationen
BRPI0511687A (pt) método, equipamento e sistema para aperfeiçoar robustez de codecs de vìdeo preditivos utilizando um canal lateral com base em técnicas de codificação de fonte distribuìda
BRPI0507160A (pt) método e equipamento para utilizar um único canal para prover mensagens de atribuição e confirmação
BR0209261A (pt) Método e dispositivo de comunicação para transmitir dados por uma pluralidade de canais de comunicação
BRPI0515623A (pt) dispositivo e método para a geração de um sinal multicanais codificado e dispositivo e método para a decodificação de um sinal multicanais codificado
BR9806005A (pt) Transmissão de sinais digitais por multiplexação por divisão de frequência ortonogal
BR112023013318A2 (pt) Intercalador para conformação de constelação
BRPI0409975A (pt) codificação ack/nak de harq para um dispositivo de comunicação durante a transferência suave
WO2009045734A3 (en) Multiplexing control information in shared channel
BRPI0405625A (pt) Método equipamento e sistema para multiplexação de usuário em sistemas de acesso múltiplo com retransmissão
BR9900005A (pt) Processo para usar eficazmente a capacidade radiodifusora em uma célula.
BRPI0414187A (pt) transmissão de redundáncia incremental para canais paralelos múltiplos em um sistema de comunicação mimo
BRPI0713281A2 (pt) Estação de base, dispositivo do usuário, e método utilizado em sistema de comunicação móvel
BR9915302A (pt) Sistema e método para medição de informação de qualidade de canal em um sistema de comunicação
BR0015739A (pt) Codificação de detecção/correção de erro para sistemas de transmissão qam hierárquicos

Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 12/07/2016, OBSERVADAS AS CONDICOES LEGAIS.