Patent ID: 8693558
Filing Date: 2014-04-08
Classification: H04L,H04W

Abstract:
1. A method for transmitting a waveform over a shared medium from a first station to at least one second station, the method comprising: forming a first portion of the waveform comprising a symbol having a predetermined symbol length, the symbol comprising a first set of frequency components at predetermined carrier frequencies modulated with preamble information stored in the second station and a second set of frequency components at predetermined carrier frequencies modulated with frame control information to be communicated to the second station, with the carrier frequencies of the first and second sets of frequency components being integral multiples of a frequency interval determined by an inverse of the symbol length; forming a second portion of the waveform, the second portion of the waveform comprising a segment that is correlated with at least an initial segment of the first portion of the waveform; and transmitting the waveform including the second portion followed in time by the first portion over the shared medium.