Techniques for coordinating communications over an unlicensed radio frequency spectrum band

A method for wireless communication, comprising:

• identifying, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band;
• and
• aligning a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band,
• wherein the aligning the second contention access protocol timing with the first contention access protocol timing comprises aligning a first timing of a first extended clear channel assessment (CCA) procedure performed by the first transmitter with a second timing of a second extended CCA procedure indicated by the first contention access protocol timing, the first extended CCA procedure being used by the first transmitter to access the unlicensed radio frequency spectrum band,
• wherein the aligning the first timing of the first extended CCA procedure with the second timing of the second extended CCA procedure comprises:
• aligning a commencement of the first extended CCA procedure with a commencement of the second extended CCA procedure, or
• syncing a first random number generator on which the first extended CCA procedure is based with a second random number generator on which the second extended CCA procedure is based.

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, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band;
• and
• align a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band,
• wherein the instructions executable by the processor to align the second contention access protocol timing with the first contention access protocol timing comprise instructions executable by the processor to adjust a timing of radio frame transmissions by the first transmitter in the unlicensed radio frequency spectrum band based at least in part on the first contention access protocol timing,
• wherein the instructions executable by the processor to adjust the timing of radio frame transmissions by the first transmitter comprise instructions executable by the processor to:
• adjust a duration of at least one radio frame transmitted by the first transmitter to coincide with a radio frame duration indicated by the first contention access protocol timing, or
• adjust a radio frame ending of at least one radio frame transmitted by the first transmitter to coincide with a radio frame ending indicated by the first contention access protocol timing, or
• shorten a duration of at least one radio frame transmitted by the first transmitter with respect to a radio frame duration indicated by the first contention access protocol timing, or
• skip at least one radio frame transmission indicated by the first contention access protocol timing.

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, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band;
• and
• align a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band,
• wherein the instructions executable by the processor to align the second contention access protocol timing with the first contention access protocol timing comprise instructions executable by the processor to align a first timing of a first extended clear channel assessment (CCA) procedure performed by the first transmitter with a second timing of a second extended CCA procedure indicated by the first contention access protocol timing, the first extended CCA procedure being used by the first transmitter to access the unlicensed radio frequency spectrum band,
• wherein the instructions executable by the processor to align the first timing of the first extended CCA procedure with the second timing of the second extended CCA procedure comprise instructions executable by the processor to:
• align a commencement of the first extended CCA procedure with a commencement of the second extended CCA procedure, or
• sync a first random number generator on which the first extended CCA procedure is based with a second random number generator on which the second extended CCA procedure is based.