Patent ID: 8989286
Filing Date: 2015-03-24
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A method, comprising: mapping, by a spectrum virtualization module of a wireless device, a plurality of transmission components associated with a transmission stream produced by a wireless physical layer protocol module of the wireless device for transmission in a virtual frequency band to sub-carriers associated with one or more allocated physical frequency bands, wherein: performing an M-point fast Fourier transform on a plurality of time-domain samples of the transmission stream to derive the M frequency components; performing an N-point inverse fast Fourier transform on the mapped plurality of the M frequency components to derive a plurality of physical time-domain transmission samples, wherein N is an integer that is not less than one and, wherein N is at least as large as M multiplied by a ratio that is a function of the virtual bandwidth and a span of the physical baseband; appending, by the spectrum virtualization module, a cyclic prefix to a plurality of physical time-domain transmission samples derived by transformation of the plurality of the mapped transmission components associated with the transmission stream to generate a physical transmission symbol for transmission on the one or more allocated physical frequency bands; and outputting the physical transmission symbol by the spectrum virtualization module.