Methods and systems for waking up a wireless receiving stations having wake-up radio (WUR) circuits. A method of providing a wake-up signal in a communications channel for a plurality of receiving stations, comprising: generating a plurality of series of waveform coded symbols, each series being incorporated into a respective wake-up-radio (WUR) frame that is intended for a respective receiving station and has a respective predefined bandwidth; combining the respective WUR frames into a multiband WUR data unit having a bandwidth that is greater than a sum of the predefined bandwidths of the wake-up radio frames; transmitting a wake-up signal including the multiband WUR data unit in the communications channel.