Methods and apparatuses pertaining to long-range low-power integrated wireless transmission in channel gaps and guard spectrum are described. A method may involve facilitating wideband wireless communications in a plurality of wideband channels in a frequency spectrum with every two adjacent wideband channels of the plurality of wideband channels separated by a respective channel gap therebetween. The method may also involve facilitating narrowband wireless communications, while facilitating the wideband wireless communications, in a plurality of narrowband channels that are multiplexed in the channel gaps, guard bands at both ends of the frequency spectrum, or both.