BR0210417A - Método e equipamento para processamento de dados para transmissão em um sistema de comunicação de múltiplos canais usando inversão seletiva de canal - Google Patents

Método e equipamento para processamento de dados para transmissão em um sistema de comunicação de múltiplos canais usando inversão seletiva de canal

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Publication number
BR0210417A
BR0210417A BR0210417-2A BR0210417A BR0210417A BR 0210417 A BR0210417 A BR 0210417A BR 0210417 A BR0210417 A BR 0210417A BR 0210417 A BR0210417 A BR 0210417A
Authority
BR
Brazil
Prior art keywords
channels
group
transmission
good
selective channel
Prior art date
Application number
BR0210417-2A
Other languages
English (en)
Other versions
BRPI0210417B1 (pt
Inventor
John W Ketchum
Jay Rod Walton
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25378821&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0210417(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0210417A publication Critical patent/BR0210417A/pt
Publication of BRPI0210417B1 publication Critical patent/BRPI0210417B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
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    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0439—Power distribution using multiple eigenmodes utilizing channel inversion
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    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
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    • 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
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
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    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
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    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Communication Control (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA PROCESSAMENTO DE DADOS PARA TRANSMISSãO EM UM SISTEMA DE COMUNICAçãO DE MúLTIPLOS CANAIS USANDO INVERSãO SELETIVA DE CANAL". Na presente invenção são descritas técnicas para processar dados para transmissão através de múltiplos canais de transmissão. Os canais de transmissão disponíveis são separados em um ou mais grupos, e os canais em cada grupo são selecionados para uso em transmissão de dados. Os dados para cada grupo são codificados e modulados com base em um esquema de codificação e modulação específico para prover símbolos de modulação, e os símbolos de modulação para cada canal selecionado são ponderados com base em pesos designados. A ponderação "inverte" os canais selecionados de modo que eles alcancem SNRs recebidas semelhantes. Com a inversão seletiva de canal, apenas canais "bons" em cada grupo que possui SNRs no ou acima de um limite específico são selecionados, os canais "ruins" não são usados e a potência de transmissão total disponível para o grupo é distribuída pelos canais bons no grupo. Desempenho aperfeiçoado é atingido mediante uso apenas de canais bons em cada grupo e coincidência de cada SNR recebida do canal selecionado com a SNR requerida.
BRPI0210417A 2001-06-14 2002-06-13 método e equipamento para processamento de dados para transmissão em um sistema de comunicação multi-canal utilizando inversão seletiva de canal BRPI0210417B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/881,610 US7072413B2 (en) 2001-05-17 2001-06-14 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
PCT/US2002/018961 WO2002103926A1 (en) 2001-06-14 2002-06-13 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion

Publications (2)

Publication Number Publication Date
BR0210417A true BR0210417A (pt) 2004-07-20
BRPI0210417B1 BRPI0210417B1 (pt) 2016-06-28

Family

ID=25378821

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0210417A BRPI0210417B1 (pt) 2001-06-14 2002-06-13 método e equipamento para processamento de dados para transmissão em um sistema de comunicação multi-canal utilizando inversão seletiva de canal

Country Status (11)

Country Link
US (2) US7072413B2 (pt)
EP (1) EP1400035B2 (pt)
JP (1) JP2004531976A (pt)
KR (1) KR100915597B1 (pt)
CN (2) CN1309183C (pt)
AT (1) ATE344553T1 (pt)
BR (1) BRPI0210417B1 (pt)
DE (1) DE60215811T3 (pt)
HK (1) HK1070761A1 (pt)
TW (1) TW583854B (pt)
WO (1) WO2002103926A1 (pt)

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US20030112880A1 (en) 2003-06-19
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