Patent ID: 9516648
Filing Date: 2016-12-06
CPC Classification: G06F,H04J,H04L,H04W,Y10S

Claim Text:
1. A communication apparatus comprising: a receiver which receives signals mapped on a plurality of frequency bands in a frequency domain, each frequency band including a plurality of subcarriers, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands, and a size of at least one of the plurality of frequency bands being a multiple of a product of two or more powers of prime numbers, the prime numbers being integer numbers that are greater than 1 and are different from each other, an exponent for at least one of the prime numbers being an integer greater than 1; a combiner which combines the received signals into a combined signal; and a transformer which transforms the combined signal in the frequency domain into a symbol sequence in a time domain with an inverse discrete Fourier transform (IDFT) having a size that is a product of powers of a plurality of values, the plurality of values being integer numbers that are greater than 1 and are different from each other, an exponent for at least one of the plurality of values being an integer greater than 1.