BRPI0513411A - inserção de piloto incremental para estimação de canal e interferência - Google Patents

inserção de piloto incremental para estimação de canal e interferência

Info

Publication number
BRPI0513411A
BRPI0513411A BRPI0513411-0A BRPI0513411A BRPI0513411A BR PI0513411 A BRPI0513411 A BR PI0513411A BR PI0513411 A BRPI0513411 A BR PI0513411A BR PI0513411 A BRPI0513411 A BR PI0513411A
Authority
BR
Brazil
Prior art keywords
receiver
channel estimation
channel
wireless communication
communication system
Prior art date
Application number
BRPI0513411-0A
Other languages
English (en)
Inventor
Dhananjay Ashok Gore
Avneesh Agrawal
Aamod Khandekar
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 BRPI0513411A publication Critical patent/BRPI0513411A/pt

Links

Classifications

    • 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
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • 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
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

INSERçãO DE PILOTO INCREMENTAL PARA ESTIMAçãO DE CANAL E INTERFERêNCIA. São revelados sistemas, um equipamento e métodos de alocação dinâmica de recursos para aperfeiçoar seletivamente a capacidade de um reeceptor de determinar uma estimativa de canal em um sistema de Acesso Múltiplo por Divisão de Freqüência Ortogonal (OFDMA). Um sistema de comunicação sem fio pode utilizar uma configuração de canal-piloto comum para ajudar na estimação de canal em um ou mais receptores em comunicação com o sistema. Um receptor em comunicação com o sistema pode não ser capaz de demodular os dados recebidos devido a uma estimativa de canal imprecisa. O receptor pode comunicar a um transmissor no sistema uma solicitação de recursos para estimação de canal adicionais. O sistema de comunicação sem fio pode fornecer recursos para estimação de canal adicionais inserindo canais-piloto dedicados em uma ou mais das freqüências alocadas para símbolos para o receptor. Se o receptor for ainda incapaz de demodular os dados recebidos, o sistema de comunicação sem fio pode inserir incrementalmente canais-piloto adicionais no símbolo associado ao receptor.
BRPI0513411-0A 2004-07-16 2005-07-15 inserção de piloto incremental para estimação de canal e interferência BRPI0513411A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US58868604P 2004-07-16 2004-07-16
US63853604P 2004-12-22 2004-12-22
US11/128,976 US8085875B2 (en) 2004-07-16 2005-05-13 Incremental pilot insertion for channnel and interference estimation
PCT/US2005/025157 WO2006020021A1 (en) 2004-07-16 2005-07-15 Incremental pilot insertion for channel and interference estimation

Publications (1)

Publication Number Publication Date
BRPI0513411A true BRPI0513411A (pt) 2008-05-06

Family

ID=35094225

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0513411-0A BRPI0513411A (pt) 2004-07-16 2005-07-15 inserção de piloto incremental para estimação de canal e interferência

Country Status (13)

Country Link
US (1) US8085875B2 (pt)
EP (5) EP2257016B1 (pt)
JP (3) JP5179867B2 (pt)
KR (2) KR101078624B1 (pt)
CN (2) CN101834813B (pt)
AU (1) AU2005274990C1 (pt)
BR (1) BRPI0513411A (pt)
CA (1) CA2574065C (pt)
IL (1) IL180745A0 (pt)
MX (1) MX2007000589A (pt)
SG (1) SG155226A1 (pt)
TW (1) TWI389520B (pt)
WO (1) WO2006020021A1 (pt)

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Also Published As

Publication number Publication date
EP2257017B1 (en) 2019-11-06
EP2257015A2 (en) 2010-12-01
CN101834813A (zh) 2010-09-15
EP2257017A2 (en) 2010-12-01
KR20080100855A (ko) 2008-11-19
CA2574065A1 (en) 2006-02-23
EP2257014A3 (en) 2013-03-20
JP2008507213A (ja) 2008-03-06
TW200629833A (en) 2006-08-16
AU2005274990A1 (en) 2006-02-23
EP2257014B1 (en) 2018-10-03
TWI389520B (zh) 2013-03-11
AU2005274990B2 (en) 2009-10-01
US20060013338A1 (en) 2006-01-19
CA2574065C (en) 2013-03-12
JP2011103653A (ja) 2011-05-26
KR101078624B1 (ko) 2011-11-01
EP1774742B1 (en) 2019-04-03
EP1774742A1 (en) 2007-04-18
US8085875B2 (en) 2011-12-27
KR20070028617A (ko) 2007-03-12
AU2005274990C1 (en) 2010-04-29
EP2257016A2 (en) 2010-12-01
JP2013070401A (ja) 2013-04-18
JP4856272B2 (ja) 2012-01-18
EP2257017A3 (en) 2013-03-20
EP2257015A3 (en) 2013-03-20
IL180745A0 (en) 2007-06-03
SG155226A1 (en) 2009-09-30
WO2006020021A1 (en) 2006-02-23
JP5179867B2 (ja) 2013-04-10
CN101834813B (zh) 2013-03-20
MX2007000589A (es) 2007-03-30
EP2257015B1 (en) 2018-09-26
CN101019400A (zh) 2007-08-15
EP2257016B1 (en) 2019-10-30
CN101019400B (zh) 2014-12-10
EP2257014A2 (en) 2010-12-01
EP2257016A3 (en) 2013-03-20

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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: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2315 DE 19-05-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.