Method and system for providing multi-input-multi-output...

Details Method and system for providing multi-input-multi-output... Method and system for providing multi-input-multi-output...

2004-05-19

2009-02-17

D'Agosta, Stephen M (Department: 2617)

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

C370S208000, C370S328000, C370S337000, C370S341000, C370S347000, C455S101000, C455S132000, C455S143000, C455S450000, C455S453000, C342S383000

Reexamination Certificate

active

07492749

ABSTRACT:
An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

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