Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2011-04-05
2011-04-05
Le, Nhan (Department: 2618)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S319000, C370S336000, C370S370000, C455S450000, C455S552100
Reexamination Certificate
active
07920526
ABSTRACT:
A method and device for transmitting a frame of a wireless communication begins by generating a preamble of the frame that includes a short training sequence and at least one long training sequence. The at least one long training sequence includes non-zero energy on each of a plurality of subcarriers except a DC subcarrier. The at least one long training sequence corresponds to the number of antennas and applicable wireless communication standards. A matrix is defined to represent the at least one long training sequence. The preamble is compatible with legacy and current standards. A channel is defined with a set of sub carriers to transmit the frame.
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Hansen Christopher J.
Moorti Rajendra T.
Trachewsky Jason Alexander
Broadcom Corporation
Le Nhan
McAndrews Held & Malloy Ltd.
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