Reduced space time transmit diversity (STTD) interference...

Details Reduced space time transmit diversity (STTD) interference... Reduced space time transmit diversity (STTD) interference...

2002-06-21

2009-11-24

Torres, Juan A (Department: 2611)

Pulse or digital communications

Transmitters

Plural diversity

C375S347000, C455S101000

Reexamination Certificate

active

07623592

ABSTRACT:
Disclosed is a transmission method wherein n antennae emit each symbol with a spread spectrum code, where the codes are the same for n antennae at each transmission considered from k transmissions, k is an even number and the symbols are coded according to k successive codes corresponding to k transmissions. The k codes provide k/2 pairs of codes which verify, in each pair, the relationship in which a pair code is time-inverted and combined in relation to the other code of the pair, and is optionally multiplied by a module 1 complex constant.

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