Patent ID: 9544171
Date: 2017-01-10
CPC Classifications: H04L,H04W

Claim:
1. A method for providing a signal in a communication device within a wireless communications network, the method comprising: obtaining, by a processor within a first communication device, a vector of data symbols; generating, by the processor, a zero-tail or very low power-tail data signal to be transmitted in a cell of the wireless communications network by multiplying the vector of data symbols with a matrix before an inverse fast Fourier transform (IFFT), wherein the matrix causes the output of the IFFT to include time domain samples with zero power or very low power in specific positions but not all positions of a time symbol tail; the generating the zero-tail or very low power tail data signal, by the processor, further includes copying at least one of the samples of the time symbol tail and placing the at least one copied sample to before the time symbol tail; controlling, by the first communication device, the amount of zero power or very low power samples through the matrix; and transmitting, by the first communication device, the generated zero-tail or very low power-tail data signal to a second communication device in the wireless communications network.