Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2004-07-30
2008-08-26
Ha, Dac V (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S299000, C375S347000, C370S464000, C455S101000
Reexamination Certificate
active
07418053
ABSTRACT:
A method is described comprising: transmitting a training signal from each antenna of a base station to each of a plurality of client devices, each of the client devices analyzing each training signal to generate channel characterization data, and transmitting the channel characterization data back to the base station; storing the channel characterization data for each of the plurality of client devices; receiving data to be transmitted to each of the client devices; and precoding the data using the channel characterization data associated with each respective client device to generate precoded data signals for each antenna of the base station; and transmitting the precoded data signals through each antenna of the base station to each respective client device.
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Cotter Tim
Perlman Stephen G.
Blakely , Sokoloff, Taylor & Zafman LLP
Ha Dac V
Rearden LLC
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