BR0110254A - Método e equipamento para um controle de taxa em um sistema de comunicação com alta taxa de dados - Google Patents

Método e equipamento para um controle de taxa em um sistema de comunicação com alta taxa de dados

Info

Publication number
BR0110254A
BR0110254A BR0110254-0A BR0110254A BR0110254A BR 0110254 A BR0110254 A BR 0110254A BR 0110254 A BR0110254 A BR 0110254A BR 0110254 A BR0110254 A BR 0110254A
Authority
BR
Brazil
Prior art keywords
sinr
data rate
rate
communication system
per
Prior art date
Application number
BR0110254-0A
Other languages
English (en)
Inventor
Nagabhushana T Sindhushayana
Rashid A Attar
Eduardo A S Esteves
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0110254A publication Critical patent/BR0110254A/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
    • 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
    • H04L1/0001—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
    • H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • 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
    • H04L1/002—Algorithms with memory of the previous states, e.g. Markovian models
    • 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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Artificial Intelligence (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA UM CONTROLE DE TAXA EM UM SISTEMA DE COMUNICAçãO COM ALTA TAXA DE DADOS". São descritos um método e um equipamento para o controle de taxa em um sistema de comunicação com alta taxa de dados (HDR). Um sistema de comunicação HDR ilustrativo define um conjunto de taxas de dados, no qual um ponto de acesso (AP) pode enviar pacotes de dados para um terminal de acesso (AT). A taxa de dados é selecionada a fim de manter uma taxa de erro de pacote (PER) alvo. O algoritmo de malha aberta (open loop) do AT mede a relação sinal/interferência e ruído (SINR) recebida em intervalos regulares, e utiliza a informação para prever uma SINR média através da próxima duração de pacote. O algoritmo de malha fechada (closed loop) AT mede uma taxa de erro de pacote (PER ) do sinal recebido, e utiliza a PER para calcular um fator de correção de malha fechada. O fator de correção de malha é somado ao valor de SINR previsto pela malha aberta, resultando em uma SINR ajustada. O AT mantém uma tabela de consulta, que compreende um conjunto de limites SINR que representam uma SINR mínima necessária para se decodificar com sucesso um pacote em cada taxa de dados. O AT utiliza o conjunto ajustado de limites SINR na tabela de consulta para selecionar a taxa de dados mais alta, o limite SINR da qual está abaixo da SINR prevista. O AT então solicita, através do link reverso, que o AP envie o próximo pacote nessa taxa de dados.
BR0110254-0A 2000-04-24 2001-04-18 Método e equipamento para um controle de taxa em um sistema de comunicação com alta taxa de dados BR0110254A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/556,769 US6751199B1 (en) 2000-04-24 2000-04-24 Method and apparatus for a rate control in a high data rate communication system
PCT/IB2001/000976 WO2001082521A2 (en) 2000-04-24 2001-04-18 Method and apparatus for a rate control in a high data rate communication system

Publications (1)

Publication Number Publication Date
BR0110254A true BR0110254A (pt) 2006-02-07

Family

ID=24222785

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0110254-0A BR0110254A (pt) 2000-04-24 2001-04-18 Método e equipamento para um controle de taxa em um sistema de comunicação com alta taxa de dados

Country Status (9)

Country Link
US (2) US6751199B1 (pt)
EP (1) EP1277303B1 (pt)
JP (1) JP5095899B2 (pt)
KR (1) KR100815648B1 (pt)
CN (2) CN101312391B (pt)
AU (1) AU7268101A (pt)
BR (1) BR0110254A (pt)
TW (1) TW518896B (pt)
WO (1) WO2001082521A2 (pt)

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Also Published As

Publication number Publication date
CN101312391B (zh) 2011-09-07
US6751199B1 (en) 2004-06-15
KR100815648B1 (ko) 2008-03-20
TW518896B (en) 2003-01-21
WO2001082521A3 (en) 2002-05-16
WO2001082521A2 (en) 2001-11-01
CN100414863C (zh) 2008-08-27
US7417957B2 (en) 2008-08-26
CN101312391A (zh) 2008-11-26
AU7268101A (en) 2001-11-07
JP2004520728A (ja) 2004-07-08
JP5095899B2 (ja) 2012-12-12
KR20030036172A (ko) 2003-05-09
EP1277303A2 (en) 2003-01-22
EP1277303B1 (en) 2012-11-07
CN1459165A (zh) 2003-11-26
US20040179499A1 (en) 2004-09-16

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