During the data transmission, the subordinate devices constantly
monitor the connection quality. If the connection quality
is sufficient and the spectrum availability determination time
elapses, both devices leave the transmission channel and repeat
the whole procedure. However, if during the transmission one
of the devices observes a significant drop in the connection
quality (by means of, for example, an increase in the frame
error rate), then that device reconfigures to the rendezvous
channel and sends a report to the access point. The access
point will use the measurement information conveyed in the
report to improve any subsequent data channel allocatio