Space-time transmit diversity (STTD) for multiple antennas...

Details Space-time transmit diversity (STTD) for multiple antennas... Space-time transmit diversity (STTD) for multiple antennas...

2007-09-04

2007-09-04

Vo, Don N. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

Reexamination Certificate

active

10674436

ABSTRACT:
A closed-loop STTD system extended from an open-loop STTD system adopting four antennas transmission diversity technique and its signal transmitting method are disclosed. The signal transmitting method in a closed-loop space-time transmit diversity (STTD) system having a plurality of transmission antennas, includes: space-time coding symbols to be transmitted; classifying the coded symbols to certain groups; and multiplying different weight values to each transmission symbol group and transmitting them.

REFERENCES:
patent: 5752173 (1998-05-01), Tsujimoto
patent: 6873606 (2005-03-01), Agrawal et al.
patent: 7047016 (2006-05-01), Walton et al.
patent: 2002/0196842 (2002-12-01), Onggosanusi et al.
patent: 2004/0032910 (2004-02-01), Horng et al.
patent: 2001-044900 (2001-02-01), None
patent: 10-2000-0055790 (2000-09-01), None
patent: 10-2000-0050542 (2002-06-01), None

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