Multiple antenna processing on transmit for wireless local area networks

A method and an apparatus in a first wireless station of a network transmitting to a second wireless station through OFDM signals. The first station includes multiple antennas (113, 115) and a receive and a transmit signal path per antenna. Each receive signal path includes a discrete Fourier transf...

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Bibliographic Details
Main Authors PERAHIA ELDAD, LYONS DANIEL JOSEPH, HART BRIAN, DOUGLAS BRETTON LEE
Format Patent
LanguageChinese
English
Published 23.02.2011
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A method and an apparatus in a first wireless station of a network transmitting to a second wireless station through OFDM signals. The first station includes multiple antennas (113, 115) and a receive and a transmit signal path per antenna. Each receive signal path includes a discrete Fourier transformer (445, 447) and each transmit signal path includes an inverse discrete Fourier transformer. The method includes determining channel estimates (449, 451) for each tone and each receive path while receiving from the second station, determining transmit weights (475) to transmit to the second station, tone-by-tone weighting a signal for transmission to the second station to produce weighted tone sets for each transmit signal path, and transmitting the weighted tone sets (417, 419).
Bibliography:Application Number: CN200580030643