Spectrum utilization for standalone nb-iot carriers

A method comprising:

• transmitting a first carrier signal of a plurality of standalone carrier signals, the first carrier signal being centered at a first frequency offset from a first channel raster point by an amount which is greater than zero and less than a first threshold, wherein a second carrier signal is adjacent to the first carrier signal and centered at a second frequency at or within a second threshold of a second channel raster, both the first carrier signal and the second carrier signal comprising a plurality of subcarriers of a defined bandwidth, and the first frequency and the second frequency differ by an amount substantially equal to a multiple of the defined bandwidth.

A method comprising:

• performing a search for at least one carrier signals using a channel raster;
• and
• receiving at least a first carrier signal of a plurality of standalone carrier signals, the first carrier signal being centered at a first frequency offset from a first channel raster point by an amount which is greater than zero and less than a first threshold, wherein a second carrier signal is adjacent to the first carrier signal and centered at a second frequency at or within a second threshold of a second channel raster, both the first carrier signal and the second carrier signal comprise a plurality of subcarriers of a defined bandwidth, and the first frequency and the second frequency differ by an amount substantially equal to a multiple of the defined bandwidth.