System and method for guard band utilization for synchronous and asynchronous communications

摘要

Embodiments are provided for guard band utilization for synchronous and asynchronous communications in wireless networks. A user equipment (UE) or a network component transmits symbols on data bands assigned for primary communications. The data bands are separated by a guard band having smaller bandwidth than the data bands. The UE or network component further modulates symbols for secondary communications with a spectrally contained wave form, which has a smaller bandwidth than the guard band. The spectrally contained wave form is achieved with orthogonal frequency-division multiplexing (OFDM) modulation or with joint OFDM and Offset Quadrature Amplitude Modulation (OQAM) modulation. The modulated symbols for the secondary communications are transmitted within the guard band.

主权项

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.