Patent ID: 8264946
Filing Date: 2012-09-11
Classification: H04L

Abstract:
1. A transmission method for a communication system using single carrier frequency division multiple access (SC-FDMA), the transmission method comprising: performing a serial-to-parallel conversion of modulated symbols of data to obtain a first sequence of samples; performing a time-to-frequency transform on the first sequence of samples to obtain a second sequence of samples; performing a frequency-domain manipulation of the second sequence of samples to obtain a third sequence of samples; performing a frequency-to-time transform on the third sequence of samples to obtain a fourth sequence of samples, where a number of samples of the fourth sequence is greater than a number of samples of the second sequence; performing a parallel-to-serial conversion of the fourth sequence of samples to obtain a fifth sequence of samples; and transmitting the fifth sequence of samples over a wireless channel, wherein performing the frequency-domain manipulation of the second sequence of samples to obtain the third sequence of samples comprises permuting samples of the second sequence, expanding a bandwidth of the permuted samples of the second sequence, and filtering permuted samples of the second sequence with the expanded bandwidth, and wherein a number of samples of the third sequence is greater than the number of samples of the second sequence.