Dynamic carrier selection and link adaptation in fading environments

摘要

A channel response of a channel in a dual-mode radio communication system is determined by detecting a wideband signal and using a narrowband receiver to generate received signal strength measurements at frequencies located within a bandwidth of the wideband signal. The wideband signal need not be intended for reception by the radio unit that detected it and generated the received signal strength measurements therefrom. The received signal strength measurements are used as an indicator of the channel response of the channel. Based on the indicator of the channel response, a modulation scheme may be selected. The indicator of the channel response of the channel may also be used to determine an adjustment of a center frequency of the wideband signal.