Techniques for scaling bandwidth of an unlicensed radio frequency spectrum band

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory, the instructions being executable by the processor to:
• identify a plurality of sub-channels in an unlicensed radio frequency spectrum band;
• performing a first plurality of synchronized clear channel assessment (CCA) procedures on the plurality of sub-channels based at least in part on a first CCA threshold;
• determine, based at least in part on the first plurality of synchronized CCA procedures, a first subset of sub-channels of the plurality of sub-channels that are clear according to the first CCA;
• performing a second plurality of concurrent CCA procedures on the first subset of sub-channels based at least in part on a second CCA threshold;
• determining a plurality of clear sub-channels based at least in part on the second plurality of concurrent CCA procedures;
• determine a scalable bandwidth of a carrier based at least in part on a bandwidth associated with the plurality of clear sub-channels;
• and
• communicate, using a transceiver, over the scalable bandwidth of the carrier using the bandwidth associated with the plurality of clear sub-channels in the unlicensed radio frequency spectrum band.

An apparatus for wireless communication, comprising:

• means for identifying a plurality of sub-channels in an unlicensed radio frequency spectrum band;
• means for performing a first plurality of synchronized clear channel assessment (CCA) procedures on the plurality of sub-channels based at least in part on a first CCA threshold;
• means for determining, based at least in part on the first plurality of synchronized CCA procedures, a first subset of sub-channels of the plurality of sub-channels that are clear according to the first CCA;
• means for performing a second plurality of concurrent CCA procedures on the first subset of sub-channels based at least in part on a second CCA threshold;
• means for determining a plurality of clear sub-channels based at least in part on the second plurality of concurrent CCA procedures;
• means for determining a scalable bandwidth of a carrier based at least in part on a bandwidth associated with the plurality of clear sub-channels;
• and
• means for communicating, using a transceiver, over the scalable bandwidth of the carrier using the bandwidth associated with the plurality of clear sub-channels in the unlicensed radio frequency spectrum band.

A non-transitory computer-readable medium storing computer-executable code for wireless communication, the code executable by a processor to:

• identify a plurality of sub-channels in an unlicensed radio frequency spectrum band;
• performing a first plurality of synchronized clear channel assessment (CCA) procedures on the plurality of sub-channels based at least in part on a first CCA threshold;
• determine, based at least in part on the first plurality of synchronized CCA procedures, a first subset of sub-channels of the plurality of sub-channels that are clear according to the first CCA;
• performing a second plurality of concurrent CCA procedures on the first subset of sub-channels based at least in part on a second CCA threshold;
• determining a plurality of clear sub-channels based at least in part on the second plurality of concurrent CCA procedures;
• determine a scalable bandwidth of a carrier based at least in part on a bandwidth associated with the plurality of clear sub-channels;
• and
• communicate, using a transceiver, over the scalable bandwidth of the carrier using the bandwidth associated with the plurality of clear sub-channels in the unlicensed radio frequency spectrum band.