Method for Facilitating Clear Channel Assessment and Radio Unit

A method in a Radio Unit (RU) for facilitating Clear Channel Assessment (CCA), comprising:

• detecting, in a first transmission period while the RU is operating in a first channel, whether one or more candidate channels in proximity to the first channel are unoccupied;
• determining, in response to a determination that the first channel is not clear for transmission in a second transmission period, whether any of the one or more candidate channels detected to be unoccupied are clear for transmission in the second transmission period;
• and
• selecting one of the candidate channels determined to be clear, for transmission in the second transmission period.

A Radio Unit (RU) configured for facilitating Clear Channel Assessment (CCA), comprising:

• a transceiver;
• a processor;
• and
• a memory, the memory containing instructions executable by the processor whereby the RU is operative to:
• detect, in a first transmission period while the RU is operating in a first channel, whether one or more candidate channels in proximity to the first channel are unoccupied;
• determine, in response to a determination that the first channel is not clear for transmission in a second transmission period, whether any of the one or more candidate channels detected to be unoccupied are clear for transmission in the second transmission period;
• and
• select one of the candidate channels determined to be clear, for transmission in the second transmission period.