BRPI0509701A8 - Processamento espacial com matrizes de direcionamento para direcionar transmissão pseudo-aleatória em um sistema de comunicação multi-antena - Google Patents

Processamento espacial com matrizes de direcionamento para direcionar transmissão pseudo-aleatória em um sistema de comunicação multi-antena

Info

Publication number
BRPI0509701A8
BRPI0509701A8 BRPI0509701A BRPI0509701A BRPI0509701A8 BR PI0509701 A8 BRPI0509701 A8 BR PI0509701A8 BR PI0509701 A BRPI0509701 A BR PI0509701A BR PI0509701 A BRPI0509701 A BR PI0509701A BR PI0509701 A8 BRPI0509701 A8 BR PI0509701A8
Authority
BR
Brazil
Prior art keywords
matrices
spatial processing
antena
communication system
pseudo
Prior art date
Application number
BRPI0509701A
Other languages
English (en)
Inventor
S Wallace Mark
Rodney Walton Jay
J Howard Steven
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 BRPI0509701A publication Critical patent/BRPI0509701A/pt
Publication of BRPI0509701A8 publication Critical patent/BRPI0509701A8/pt
Publication of BRPI0509701B1 publication Critical patent/BRPI0509701B1/pt

Links

Classifications

    • 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
    • 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
    • H04B7/06—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Complex Calculations (AREA)

Abstract

PROCESSAMENTO ESPACIAL COM MATRIZES DE DIRECIONAMENTO PARA DIRECIONAR TRANSMISSÃO PSEUDO-ALEATÓRIA EM UM SISTEMA DE COMUNICAÇÃO MULTI-ANTENA. São descritas técnicas para gerar e utilizar matrizes de direcionamento para direcionamento de transmissão pseudo-aleatória (PRTS). Para a PRTS, uma entidade transmissora executa processamento espacial com matrizes de direcionamento de modo que uma transmissão de dados observe um conjunto de canais "efetivos" formado pelo canal real utilizado na transmissão de dados e pelas matrizes de direcionamento utilizadas na PRTS. As matrizes de direcionamento podem ser geradas selecionando-se uma matriz base, que pode ser uma matriz de Walsh ou uma matriz de Fourier. Diferentes combinações de escalares são então selecionadas, com cada combinação incluindo pelo menos um escalar para pelo menos uma fileira da matriz base. Cada escalar por ser um valor real ou complexo (como, por exemplo, +1, -1, +j ou -j, onde j = (Gama) 1). Diferentes matrizes de direcionamento são geradas multiplicando-se a matriz base por cada uma das diferentes combinações de escalares. As matrizes de direcionamento são permutações diferentes da matriz base.
BRPI0509701A 2004-04-09 2005-03-15 processamento espacial com matrizes de direcionamento para direcionar transmissão pseudo-aleatória em um sistema de comunicação multi-antena BRPI0509701B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/821,390 US20050238111A1 (en) 2004-04-09 2004-04-09 Spatial processing with steering matrices for pseudo-random transmit steering in a multi-antenna communication system
PCT/US2005/008738 WO2005104399A1 (en) 2004-04-09 2005-03-15 Spatial processing with steering matrices for pseudo- random transmit steering in a multi-antenna communication system

Publications (3)

Publication Number Publication Date
BRPI0509701A BRPI0509701A (pt) 2007-09-18
BRPI0509701A8 true BRPI0509701A8 (pt) 2018-06-12
BRPI0509701B1 BRPI0509701B1 (pt) 2018-11-06

Family

ID=34963131

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0509701A BRPI0509701B1 (pt) 2004-04-09 2005-03-15 processamento espacial com matrizes de direcionamento para direcionar transmissão pseudo-aleatória em um sistema de comunicação multi-antena

Country Status (17)

Country Link
US (1) US20050238111A1 (pt)
EP (2) EP2256951B1 (pt)
JP (2) JP2007533206A (pt)
KR (1) KR100856172B1 (pt)
CN (1) CN1973451B (pt)
AU (1) AU2005236853C1 (pt)
BR (1) BRPI0509701B1 (pt)
CA (1) CA2562055C (pt)
DK (1) DK1733486T3 (pt)
ES (1) ES2536975T3 (pt)
IL (1) IL178445A0 (pt)
MX (1) MXPA06011656A (pt)
PL (1) PL1733486T3 (pt)
PT (1) PT1733486E (pt)
RU (1) RU2351070C2 (pt)
TW (1) TWI393374B (pt)
WO (1) WO2005104399A1 (pt)

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Also Published As

Publication number Publication date
CN1973451B (zh) 2014-11-26
MXPA06011656A (es) 2007-01-23
EP2256951A2 (en) 2010-12-01
WO2005104399A1 (en) 2005-11-03
JP2010252358A (ja) 2010-11-04
DK1733486T3 (en) 2015-05-26
IL178445A0 (en) 2007-02-11
US20050238111A1 (en) 2005-10-27
CN1973451A (zh) 2007-05-30
EP1733486A1 (en) 2006-12-20
ES2536975T3 (es) 2015-06-01
JP5139473B2 (ja) 2013-02-06
PL1733486T3 (pl) 2015-07-31
RU2351070C2 (ru) 2009-03-27
TW200618513A (en) 2006-06-01
BRPI0509701B1 (pt) 2018-11-06
JP2007533206A (ja) 2007-11-15
PT1733486E (pt) 2015-04-07
EP2256951A3 (en) 2015-01-14
CA2562055A1 (en) 2005-11-03
RU2006139645A (ru) 2008-05-20
AU2005236853B2 (en) 2009-01-08
EP2256951B1 (en) 2019-05-08
TWI393374B (zh) 2013-04-11
KR100856172B1 (ko) 2008-09-03
BRPI0509701A (pt) 2007-09-18
CA2562055C (en) 2012-11-13
AU2005236853A1 (en) 2005-11-03
EP1733486B1 (en) 2015-02-18
AU2005236853C1 (en) 2009-05-28
KR20060130267A (ko) 2006-12-18

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