Patent ID: 9137074
Filing Date: 2015-09-15
Classification: H04L

Abstract:
1. A method increasing band utilization by a network component in a wireless network comprising: allocating, at the network component, secondary communications to a guard band, the guard band separating data bands assigned for primary communications using OFDM-based waveform; modulating, at the network component, symbols for the secondary communications with a spectrally contained wave form, the spectrally contained wave form having a smaller bandwidth than the guard band, wherein modulating the symbols for the secondary communications with the spectrally contained wave form includes modulating the symbols for the secondary communications in the guard band with filtered orthogonal frequency-division multiplexing (F-OFDM) or with joint orthogonal frequency-division multiplexing (OFDM) and Offset Quadrature Amplitude Modulation (OQAM); and transmitting, at the network component, the modulated symbols for the secondary communications within the guard band.