SYSTEM AND METHOD FOR MULTIFRAME ALIGNMENT IN A MULTIPOINT-TO-POINT ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
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United States of America Patent
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app pub date -
Oct 26, 2007
filing date -
Feb 6, 1995
priority date (Note) -
Abandoned
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Abstract
Systems and methods for multiframe alignment in a multipoint-to-point orthogonal frequency division multiplexing (OFDM) system are provided. In one embodiment, a method for communicating a multiframe comprises: receiving at a host a plurality of upstream symbols transmitted from a plurality of remote units, the upstream symbols transmitted on a plurality of orthogonal carriers modulated using an inverse Fourier transform; and adjusting a transmission timing of at least two of the plurality of remote units so that symbols transmitted from the at least two of the plurality of remote units and associated with frames of a predetermined multiframe structure are received at the host in a sequence based on the predetermined multiframe structure.
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