Patent ID: 7936662
Filing Date: 2011-05-03
Classification: G06F,H03M,H04B,H04H,H04J,H04K,H04L,H04M,H04N,H04W,Y02D

Abstract:
1. A method for an orthogonal frequency division multiplexing multipoint-to-point communications system, the method comprising: establishing communication between a first remote unit of a plurality of remote units and a host unit, the plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration using orthogonal frequency division multiplexing and synchronized in timing and frequency such that signals from the first remote unit combine with signals from at least one other remote unit to form an orthogonal frequency division multiplexing waveform of spectrally overlapping orthogonal carriers; and adjusting a round trip path delay associated with the first remote unit.