Methods and systems for combined cyclic delay diversity and...

Details Methods and systems for combined cyclic delay diversity and... Methods and systems for combined cyclic delay diversity and...

H - Electricity

04

B

H04B 7/06 (2006.01) H04B 7/08 (2006.01)

Patent

CA 2677065

In a transmitter or transceiver, signals can be precoded by multiplying symbol vectors with various matrices. For example, symbol vectors can be multiplied with a first column subset of unitary matrix (518) which spreads symbols in the symbol vectors across virtual transmit antennas, a second diagonal matrix (516) which changes a phase of the virtual transmit antennas, and a third precoding matrix (515) which distributes the transmission across the transmit antennas.

L'invention concerne, dans un émetteur ou émetteur-récepteur, des signaux qui peuvent être précodés en multipliant des vecteurs de symbole avec diverses matrices. A titre d'exemple, des vecteurs de symbole peuvent être multipliés avec un premier sous-ensemble de colonnes de matrice unitaire (518) qui répand des symboles dans les vecteurs de symbole à travers des antennes de transmission virtuelle, une seconde matrice diagonale (516) qui modifie une phase des antennes de transmission virtuelle, et une troisième matrice de précodage (515) qui distribue la transmission à travers les antennes de transmission.

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