Ranging and round trip delay timing adjustment in a...

Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels

Reexamination Certificate

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C370S252000, C370S343000, C370S465000

Reexamination Certificate

active

07492791

ABSTRACT:
A bidirectional communication system is provided. In one embodiment, a system comprises a host unit to communicate with a plurality of remote units using orthogonal frequency division multiplexing (OFDM), the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; and wherein the host unit is configured to adjust a round trip path delay associated with at least one of the plurality of remote units.

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